/usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Bitvector.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/combinations/pals_lcr.5.1.ufo.UNBOUNDED.pals+Problem12_label05.c -------------------------------------------------------------------------------- This is Ultimate 0.2.4-tmp.fs.bitabs-eval-d9c3e40-m [2023-12-22 00:45:02,591 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-22 00:45:02,656 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Bitvector.epf [2023-12-22 00:45:02,660 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-22 00:45:02,661 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-22 00:45:02,683 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-22 00:45:02,684 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-22 00:45:02,684 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-22 00:45:02,684 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-12-22 00:45:02,687 INFO L153 SettingsManager]: * Use memory slicer=true [2023-12-22 00:45:02,687 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-22 00:45:02,688 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-22 00:45:02,688 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-22 00:45:02,689 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-22 00:45:02,689 INFO L153 SettingsManager]: * Use SBE=true [2023-12-22 00:45:02,690 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-22 00:45:02,690 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-22 00:45:02,690 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-22 00:45:02,690 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-22 00:45:02,691 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-22 00:45:02,691 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-22 00:45:02,691 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-22 00:45:02,691 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-22 00:45:02,691 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-12-22 00:45:02,692 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-12-22 00:45:02,692 INFO L153 SettingsManager]: * Allow undefined functions=false [2023-12-22 00:45:02,692 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-12-22 00:45:02,692 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-22 00:45:02,692 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-22 00:45:02,692 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-22 00:45:02,693 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-22 00:45:02,693 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-12-22 00:45:02,693 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-12-22 00:45:02,693 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-22 00:45:02,694 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-22 00:45:02,694 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-22 00:45:02,694 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-22 00:45:02,694 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-22 00:45:02,694 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2023-12-22 00:45:02,694 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-12-22 00:45:02,694 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-22 00:45:02,695 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-12-22 00:45:02,695 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-22 00:45:02,695 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-12-22 00:45:02,695 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-22 00:45:02,695 INFO L153 SettingsManager]: * Logic for external solver=AUFBV [2023-12-22 00:45:02,695 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2023-12-22 00:45:02,892 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-22 00:45:02,914 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-22 00:45:02,916 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-22 00:45:02,916 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-22 00:45:02,917 INFO L274 PluginConnector]: CDTParser initialized [2023-12-22 00:45:02,918 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/combinations/pals_lcr.5.1.ufo.UNBOUNDED.pals+Problem12_label05.c [2023-12-22 00:45:03,902 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-22 00:45:04,289 INFO L384 CDTParser]: Found 1 translation units. [2023-12-22 00:45:04,290 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/combinations/pals_lcr.5.1.ufo.UNBOUNDED.pals+Problem12_label05.c [2023-12-22 00:45:04,315 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5f7f13855/7eb1837344fa4c1aa5cf3d047c02b831/FLAGd65fb982d [2023-12-22 00:45:04,326 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5f7f13855/7eb1837344fa4c1aa5cf3d047c02b831 [2023-12-22 00:45:04,328 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-22 00:45:04,329 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-12-22 00:45:04,331 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-22 00:45:04,331 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-22 00:45:04,334 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-22 00:45:04,334 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.12 12:45:04" (1/1) ... [2023-12-22 00:45:04,335 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7e87645b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 12:45:04, skipping insertion in model container [2023-12-22 00:45:04,335 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.12 12:45:04" (1/1) ... [2023-12-22 00:45:04,452 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-22 00:45:04,742 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/combinations/pals_lcr.5.1.ufo.UNBOUNDED.pals+Problem12_label05.c[11705,11718] [2023-12-22 00:45:04,799 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/combinations/pals_lcr.5.1.ufo.UNBOUNDED.pals+Problem12_label05.c[18641,18654] [2023-12-22 00:45:05,253 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-22 00:45:05,265 INFO L202 MainTranslator]: Completed pre-run [2023-12-22 00:45:05,292 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/combinations/pals_lcr.5.1.ufo.UNBOUNDED.pals+Problem12_label05.c[11705,11718] [2023-12-22 00:45:05,299 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/combinations/pals_lcr.5.1.ufo.UNBOUNDED.pals+Problem12_label05.c[18641,18654] [2023-12-22 00:45:05,602 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-22 00:45:05,624 INFO L206 MainTranslator]: Completed translation [2023-12-22 00:45:05,625 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 12:45:05 WrapperNode [2023-12-22 00:45:05,625 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-22 00:45:05,626 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-22 00:45:05,626 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-22 00:45:05,626 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-22 00:45:05,631 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 12:45:05" (1/1) ... [2023-12-22 00:45:05,686 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 12:45:05" (1/1) ... [2023-12-22 00:45:05,809 INFO L138 Inliner]: procedures = 38, calls = 22, calls flagged for inlining = 17, calls inlined = 17, statements flattened = 5069 [2023-12-22 00:45:05,809 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-22 00:45:05,810 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-22 00:45:05,811 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-22 00:45:05,811 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-22 00:45:05,818 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 12:45:05" (1/1) ... [2023-12-22 00:45:05,818 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 12:45:05" (1/1) ... [2023-12-22 00:45:05,855 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 12:45:05" (1/1) ... [2023-12-22 00:45:05,906 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2023-12-22 00:45:05,906 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 12:45:05" (1/1) ... [2023-12-22 00:45:05,906 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 12:45:05" (1/1) ... [2023-12-22 00:45:06,029 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 12:45:05" (1/1) ... [2023-12-22 00:45:06,052 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 12:45:05" (1/1) ... [2023-12-22 00:45:06,065 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 12:45:05" (1/1) ... [2023-12-22 00:45:06,077 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 12:45:05" (1/1) ... [2023-12-22 00:45:06,097 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-22 00:45:06,098 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-22 00:45:06,098 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-22 00:45:06,098 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-22 00:45:06,099 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 12:45:05" (1/1) ... [2023-12-22 00:45:06,102 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-22 00:45:06,113 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-22 00:45:06,123 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2023-12-22 00:45:06,140 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2023-12-22 00:45:06,147 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-22 00:45:06,161 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2023-12-22 00:45:06,161 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-22 00:45:06,161 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-22 00:45:06,298 INFO L241 CfgBuilder]: Building ICFG [2023-12-22 00:45:06,300 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-22 00:45:32,507 INFO L282 CfgBuilder]: Performing block encoding [2023-12-22 00:45:32,557 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-22 00:45:32,558 INFO L309 CfgBuilder]: Removed 2 assume(true) statements. [2023-12-22 00:45:32,558 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.12 12:45:32 BoogieIcfgContainer [2023-12-22 00:45:32,558 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-22 00:45:32,559 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-22 00:45:32,559 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-22 00:45:32,562 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-22 00:45:32,562 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.12 12:45:04" (1/3) ... [2023-12-22 00:45:32,562 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@64a76ca3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.12 12:45:32, skipping insertion in model container [2023-12-22 00:45:32,562 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 12:45:05" (2/3) ... [2023-12-22 00:45:32,563 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@64a76ca3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.12 12:45:32, skipping insertion in model container [2023-12-22 00:45:32,563 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.12 12:45:32" (3/3) ... [2023-12-22 00:45:32,563 INFO L112 eAbstractionObserver]: Analyzing ICFG pals_lcr.5.1.ufo.UNBOUNDED.pals+Problem12_label05.c [2023-12-22 00:45:32,575 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-22 00:45:32,575 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2023-12-22 00:45:32,627 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-22 00:45:32,633 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;@4505d67c, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-22 00:45:32,633 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2023-12-22 00:45:32,641 INFO L276 IsEmpty]: Start isEmpty. Operand has 836 states, 833 states have (on average 1.9747899159663866) internal successors, (1645), 835 states have internal predecessors, (1645), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 00:45:32,648 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2023-12-22 00:45:32,648 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 00:45:32,649 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] [2023-12-22 00:45:32,649 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 00:45:32,654 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 00:45:32,654 INFO L85 PathProgramCache]: Analyzing trace with hash 1695125417, now seen corresponding path program 1 times [2023-12-22 00:45:32,664 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 00:45:32,665 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [160198989] [2023-12-22 00:45:32,665 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 00:45:32,665 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 00:45:32,665 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 00:45:32,667 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-22 00:45:32,715 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2023-12-22 00:45:32,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 00:45:32,781 INFO L262 TraceCheckSpWp]: Trace formula consists of 119 conjuncts, 1 conjunts are in the unsatisfiable core [2023-12-22 00:45:32,784 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 00:45:32,797 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 00:45:32,797 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 00:45:32,798 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 00:45:32,798 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [160198989] [2023-12-22 00:45:32,798 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [160198989] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 00:45:32,799 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 00:45:32,799 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-22 00:45:32,800 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [373323612] [2023-12-22 00:45:32,800 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 00:45:32,803 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-12-22 00:45:32,803 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 00:45:32,825 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-12-22 00:45:32,826 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-12-22 00:45:32,830 INFO L87 Difference]: Start difference. First operand has 836 states, 833 states have (on average 1.9747899159663866) internal successors, (1645), 835 states have internal predecessors, (1645), 0 states have call successors, (0), 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 10.5) internal successors, (21), 2 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 00:45:32,923 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 00:45:32,923 INFO L93 Difference]: Finished difference Result 1636 states and 3221 transitions. [2023-12-22 00:45:32,925 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-12-22 00:45:32,926 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 10.5) internal successors, (21), 2 states have internal predecessors, (21), 0 states have call successors, (0), 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 21 [2023-12-22 00:45:32,926 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 00:45:32,940 INFO L225 Difference]: With dead ends: 1636 [2023-12-22 00:45:32,941 INFO L226 Difference]: Without dead ends: 832 [2023-12-22 00:45:32,948 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-12-22 00:45:32,951 INFO L413 NwaCegarLoop]: 1573 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 1573 SdHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-22 00:45:32,952 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 1573 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-22 00:45:32,965 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 832 states. [2023-12-22 00:45:32,999 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 832 to 832. [2023-12-22 00:45:33,001 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 832 states, 830 states have (on average 1.8963855421686746) internal successors, (1574), 831 states have internal predecessors, (1574), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 00:45:33,003 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 832 states to 832 states and 1574 transitions. [2023-12-22 00:45:33,003 INFO L78 Accepts]: Start accepts. Automaton has 832 states and 1574 transitions. Word has length 21 [2023-12-22 00:45:33,004 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 00:45:33,004 INFO L495 AbstractCegarLoop]: Abstraction has 832 states and 1574 transitions. [2023-12-22 00:45:33,004 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 10.5) internal successors, (21), 2 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 00:45:33,004 INFO L276 IsEmpty]: Start isEmpty. Operand 832 states and 1574 transitions. [2023-12-22 00:45:33,005 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2023-12-22 00:45:33,005 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 00:45:33,005 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 00:45:33,011 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 (2)] Ended with exit code 0 [2023-12-22 00:45:33,208 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 00:45:33,209 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 00:45:33,209 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 00:45:33,209 INFO L85 PathProgramCache]: Analyzing trace with hash 106777515, now seen corresponding path program 1 times [2023-12-22 00:45:33,210 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 00:45:33,210 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [61250853] [2023-12-22 00:45:33,210 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 00:45:33,210 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 00:45:33,210 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 00:45:33,211 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-22 00:45:33,240 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2023-12-22 00:45:33,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 00:45:33,270 INFO L262 TraceCheckSpWp]: Trace formula consists of 119 conjuncts, 6 conjunts are in the unsatisfiable core [2023-12-22 00:45:33,272 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 00:45:33,307 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 00:45:33,307 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 00:45:33,307 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 00:45:33,308 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [61250853] [2023-12-22 00:45:33,308 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [61250853] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 00:45:33,308 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 00:45:33,308 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-22 00:45:33,308 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1185080135] [2023-12-22 00:45:33,308 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 00:45:33,309 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-22 00:45:33,309 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 00:45:33,309 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-22 00:45:33,309 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-22 00:45:33,310 INFO L87 Difference]: Start difference. First operand 832 states and 1574 transitions. Second operand has 4 states, 4 states have (on average 5.25) internal successors, (21), 4 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 00:45:33,377 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 00:45:33,377 INFO L93 Difference]: Finished difference Result 878 states and 1646 transitions. [2023-12-22 00:45:33,378 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-22 00:45:33,378 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 5.25) internal successors, (21), 4 states have internal predecessors, (21), 0 states have call successors, (0), 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 21 [2023-12-22 00:45:33,378 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 00:45:33,380 INFO L225 Difference]: With dead ends: 878 [2023-12-22 00:45:33,380 INFO L226 Difference]: Without dead ends: 832 [2023-12-22 00:45:33,381 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-22 00:45:33,382 INFO L413 NwaCegarLoop]: 1571 mSDtfsCounter, 0 mSDsluCounter, 3107 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 30 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 4678 SdHoareTripleChecker+Invalid, 43 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 30 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-22 00:45:33,382 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 4678 Invalid, 43 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [30 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-22 00:45:33,383 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 832 states. [2023-12-22 00:45:33,399 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 832 to 832. [2023-12-22 00:45:33,400 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 832 states, 830 states have (on average 1.8590361445783132) internal successors, (1543), 831 states have internal predecessors, (1543), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 00:45:33,402 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 832 states to 832 states and 1543 transitions. [2023-12-22 00:45:33,402 INFO L78 Accepts]: Start accepts. Automaton has 832 states and 1543 transitions. Word has length 21 [2023-12-22 00:45:33,403 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 00:45:33,403 INFO L495 AbstractCegarLoop]: Abstraction has 832 states and 1543 transitions. [2023-12-22 00:45:33,403 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 5.25) internal successors, (21), 4 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 00:45:33,403 INFO L276 IsEmpty]: Start isEmpty. Operand 832 states and 1543 transitions. [2023-12-22 00:45:33,408 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2023-12-22 00:45:33,409 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 00:45:33,410 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] [2023-12-22 00:45:33,416 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2023-12-22 00:45:33,613 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 00:45:33,613 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 00:45:33,614 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 00:45:33,614 INFO L85 PathProgramCache]: Analyzing trace with hash 1212971778, now seen corresponding path program 1 times [2023-12-22 00:45:33,616 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 00:45:33,616 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1920828860] [2023-12-22 00:45:33,616 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 00:45:33,616 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 00:45:33,616 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 00:45:33,618 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-22 00:45:33,623 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2023-12-22 00:45:33,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 00:45:33,752 INFO L262 TraceCheckSpWp]: Trace formula consists of 149 conjuncts, 6 conjunts are in the unsatisfiable core [2023-12-22 00:45:33,757 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 00:45:34,631 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 00:45:34,631 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 00:45:34,632 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 00:45:34,632 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1920828860] [2023-12-22 00:45:34,632 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1920828860] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 00:45:34,632 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 00:45:34,632 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-22 00:45:34,632 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1989904072] [2023-12-22 00:45:34,633 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 00:45:34,633 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-22 00:45:34,633 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 00:45:34,634 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-22 00:45:34,634 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2023-12-22 00:45:34,634 INFO L87 Difference]: Start difference. First operand 832 states and 1543 transitions. Second operand has 7 states, 7 states have (on average 7.285714285714286) internal successors, (51), 7 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 00:45:35,039 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 00:45:35,040 INFO L93 Difference]: Finished difference Result 1090 states and 1957 transitions. [2023-12-22 00:45:35,041 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-12-22 00:45:35,041 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 7.285714285714286) internal successors, (51), 7 states have internal predecessors, (51), 0 states have call successors, (0), 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 51 [2023-12-22 00:45:35,041 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 00:45:35,044 INFO L225 Difference]: With dead ends: 1090 [2023-12-22 00:45:35,045 INFO L226 Difference]: Without dead ends: 1047 [2023-12-22 00:45:35,045 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 45 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2023-12-22 00:45:35,046 INFO L413 NwaCegarLoop]: 1534 mSDtfsCounter, 4738 mSDsluCounter, 380 mSDsCounter, 0 mSdLazyCounter, 73 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4738 SdHoareTripleChecker+Valid, 1914 SdHoareTripleChecker+Invalid, 79 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 73 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-12-22 00:45:35,046 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4738 Valid, 1914 Invalid, 79 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 73 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-12-22 00:45:35,048 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1047 states. [2023-12-22 00:45:35,059 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1047 to 914. [2023-12-22 00:45:35,061 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 914 states, 912 states have (on average 1.837719298245614) internal successors, (1676), 913 states have internal predecessors, (1676), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 00:45:35,062 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 914 states to 914 states and 1676 transitions. [2023-12-22 00:45:35,063 INFO L78 Accepts]: Start accepts. Automaton has 914 states and 1676 transitions. Word has length 51 [2023-12-22 00:45:35,063 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 00:45:35,063 INFO L495 AbstractCegarLoop]: Abstraction has 914 states and 1676 transitions. [2023-12-22 00:45:35,063 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 7.285714285714286) internal successors, (51), 7 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 00:45:35,063 INFO L276 IsEmpty]: Start isEmpty. Operand 914 states and 1676 transitions. [2023-12-22 00:45:35,064 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2023-12-22 00:45:35,065 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 00:45:35,065 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 00:45:35,083 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 [2023-12-22 00:45:35,268 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 00:45:35,268 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 00:45:35,268 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 00:45:35,268 INFO L85 PathProgramCache]: Analyzing trace with hash 1583069298, now seen corresponding path program 1 times [2023-12-22 00:45:35,269 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 00:45:35,269 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1654130169] [2023-12-22 00:45:35,269 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 00:45:35,269 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 00:45:35,269 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 00:45:35,270 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-22 00:45:35,288 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2023-12-22 00:45:35,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 00:45:35,339 INFO L262 TraceCheckSpWp]: Trace formula consists of 151 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-22 00:45:35,341 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 00:45:35,425 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 00:45:35,425 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 00:45:35,426 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 00:45:35,426 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1654130169] [2023-12-22 00:45:35,426 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1654130169] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 00:45:35,426 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 00:45:35,426 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-22 00:45:35,426 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1161483926] [2023-12-22 00:45:35,426 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 00:45:35,427 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-22 00:45:35,427 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 00:45:35,427 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-22 00:45:35,427 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-22 00:45:35,427 INFO L87 Difference]: Start difference. First operand 914 states and 1676 transitions. Second operand has 3 states, 3 states have (on average 17.666666666666668) internal successors, (53), 3 states have internal predecessors, (53), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 00:45:35,473 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 00:45:35,473 INFO L93 Difference]: Finished difference Result 1148 states and 2052 transitions. [2023-12-22 00:45:35,475 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-22 00:45:35,476 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 17.666666666666668) internal successors, (53), 3 states have internal predecessors, (53), 0 states have call successors, (0), 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 53 [2023-12-22 00:45:35,476 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 00:45:35,479 INFO L225 Difference]: With dead ends: 1148 [2023-12-22 00:45:35,479 INFO L226 Difference]: Without dead ends: 1023 [2023-12-22 00:45:35,480 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 51 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-22 00:45:35,481 INFO L413 NwaCegarLoop]: 1536 mSDtfsCounter, 1482 mSDsluCounter, 61 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1482 SdHoareTripleChecker+Valid, 1597 SdHoareTripleChecker+Invalid, 19 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-22 00:45:35,483 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1482 Valid, 1597 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-22 00:45:35,485 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1023 states. [2023-12-22 00:45:35,498 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1023 to 1018. [2023-12-22 00:45:35,499 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1018 states, 1016 states have (on average 1.8090551181102361) internal successors, (1838), 1017 states have internal predecessors, (1838), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 00:45:35,501 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1018 states to 1018 states and 1838 transitions. [2023-12-22 00:45:35,501 INFO L78 Accepts]: Start accepts. Automaton has 1018 states and 1838 transitions. Word has length 53 [2023-12-22 00:45:35,501 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 00:45:35,502 INFO L495 AbstractCegarLoop]: Abstraction has 1018 states and 1838 transitions. [2023-12-22 00:45:35,502 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 17.666666666666668) internal successors, (53), 3 states have internal predecessors, (53), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 00:45:35,502 INFO L276 IsEmpty]: Start isEmpty. Operand 1018 states and 1838 transitions. [2023-12-22 00:45:35,506 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2023-12-22 00:45:35,506 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 00:45:35,506 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 00:45:35,512 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2023-12-22 00:45:35,710 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 00:45:35,710 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 00:45:35,711 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 00:45:35,711 INFO L85 PathProgramCache]: Analyzing trace with hash 1767897232, now seen corresponding path program 1 times [2023-12-22 00:45:35,712 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 00:45:35,712 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1035131628] [2023-12-22 00:45:35,712 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 00:45:35,712 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 00:45:35,712 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 00:45:35,713 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-22 00:45:35,715 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2023-12-22 00:45:35,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 00:45:35,801 INFO L262 TraceCheckSpWp]: Trace formula consists of 152 conjuncts, 6 conjunts are in the unsatisfiable core [2023-12-22 00:45:35,803 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 00:45:35,851 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 00:45:35,852 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 00:45:35,852 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 00:45:35,852 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1035131628] [2023-12-22 00:45:35,852 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1035131628] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 00:45:35,852 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 00:45:35,853 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-22 00:45:35,853 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1836641568] [2023-12-22 00:45:35,854 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 00:45:35,854 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-22 00:45:35,854 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 00:45:35,855 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-22 00:45:35,855 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-22 00:45:35,855 INFO L87 Difference]: Start difference. First operand 1018 states and 1838 transitions. Second operand has 4 states, 4 states have (on average 13.5) internal successors, (54), 4 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 00:45:35,930 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 00:45:35,930 INFO L93 Difference]: Finished difference Result 1032 states and 1855 transitions. [2023-12-22 00:45:35,932 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-22 00:45:35,932 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 13.5) internal successors, (54), 4 states have internal predecessors, (54), 0 states have call successors, (0), 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 54 [2023-12-22 00:45:35,934 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 00:45:35,938 INFO L225 Difference]: With dead ends: 1032 [2023-12-22 00:45:35,939 INFO L226 Difference]: Without dead ends: 1030 [2023-12-22 00:45:35,939 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 51 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-22 00:45:35,940 INFO L413 NwaCegarLoop]: 1539 mSDtfsCounter, 1 mSDsluCounter, 3070 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 4609 SdHoareTripleChecker+Invalid, 19 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-22 00:45:35,940 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 4609 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-22 00:45:35,942 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1030 states. [2023-12-22 00:45:35,960 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1030 to 1026. [2023-12-22 00:45:35,962 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1026 states, 1024 states have (on average 1.8017578125) internal successors, (1845), 1025 states have internal predecessors, (1845), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 00:45:35,965 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1026 states to 1026 states and 1845 transitions. [2023-12-22 00:45:35,966 INFO L78 Accepts]: Start accepts. Automaton has 1026 states and 1845 transitions. Word has length 54 [2023-12-22 00:45:35,966 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 00:45:35,967 INFO L495 AbstractCegarLoop]: Abstraction has 1026 states and 1845 transitions. [2023-12-22 00:45:35,968 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 13.5) internal successors, (54), 4 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 00:45:35,971 INFO L276 IsEmpty]: Start isEmpty. Operand 1026 states and 1845 transitions. [2023-12-22 00:45:35,977 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2023-12-22 00:45:35,977 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 00:45:35,977 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] [2023-12-22 00:45:35,993 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2023-12-22 00:45:36,182 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 00:45:36,182 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 00:45:36,182 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 00:45:36,182 INFO L85 PathProgramCache]: Analyzing trace with hash 1923112714, now seen corresponding path program 1 times [2023-12-22 00:45:36,183 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 00:45:36,183 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2027741312] [2023-12-22 00:45:36,184 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 00:45:36,184 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 00:45:36,184 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 00:45:36,185 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-22 00:45:36,217 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2023-12-22 00:45:36,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 00:45:36,257 INFO L262 TraceCheckSpWp]: Trace formula consists of 154 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-22 00:45:36,258 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 00:45:36,337 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 00:45:36,337 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 00:45:36,337 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 00:45:36,337 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2027741312] [2023-12-22 00:45:36,337 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2027741312] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 00:45:36,337 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 00:45:36,337 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-22 00:45:36,338 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [989382312] [2023-12-22 00:45:36,338 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 00:45:36,338 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-22 00:45:36,338 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 00:45:36,338 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-22 00:45:36,338 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-22 00:45:36,338 INFO L87 Difference]: Start difference. First operand 1026 states and 1845 transitions. Second operand has 3 states, 3 states have (on average 18.333333333333332) internal successors, (55), 3 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 00:45:36,467 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 00:45:36,467 INFO L93 Difference]: Finished difference Result 1476 states and 2545 transitions. [2023-12-22 00:45:36,468 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-22 00:45:36,469 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 18.333333333333332) internal successors, (55), 3 states have internal predecessors, (55), 0 states have call successors, (0), 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 55 [2023-12-22 00:45:36,469 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 00:45:36,473 INFO L225 Difference]: With dead ends: 1476 [2023-12-22 00:45:36,474 INFO L226 Difference]: Without dead ends: 1239 [2023-12-22 00:45:36,474 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 53 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-22 00:45:36,475 INFO L413 NwaCegarLoop]: 1585 mSDtfsCounter, 1495 mSDsluCounter, 73 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1495 SdHoareTripleChecker+Valid, 1658 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-22 00:45:36,475 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1495 Valid, 1658 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-22 00:45:36,477 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1239 states. [2023-12-22 00:45:36,495 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1239 to 1237. [2023-12-22 00:45:36,497 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1237 states, 1235 states have (on average 1.754655870445344) internal successors, (2167), 1236 states have internal predecessors, (2167), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 00:45:36,501 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1237 states to 1237 states and 2167 transitions. [2023-12-22 00:45:36,501 INFO L78 Accepts]: Start accepts. Automaton has 1237 states and 2167 transitions. Word has length 55 [2023-12-22 00:45:36,502 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 00:45:36,502 INFO L495 AbstractCegarLoop]: Abstraction has 1237 states and 2167 transitions. [2023-12-22 00:45:36,502 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 18.333333333333332) internal successors, (55), 3 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 00:45:36,502 INFO L276 IsEmpty]: Start isEmpty. Operand 1237 states and 2167 transitions. [2023-12-22 00:45:36,503 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2023-12-22 00:45:36,503 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 00:45:36,503 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] [2023-12-22 00:45:36,524 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (7)] Forceful destruction successful, exit code 0 [2023-12-22 00:45:36,710 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 00:45:36,711 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 00:45:36,711 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 00:45:36,711 INFO L85 PathProgramCache]: Analyzing trace with hash 1963056650, now seen corresponding path program 1 times [2023-12-22 00:45:36,711 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 00:45:36,712 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1567291220] [2023-12-22 00:45:36,712 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 00:45:36,712 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 00:45:36,712 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 00:45:36,715 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-22 00:45:36,716 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2023-12-22 00:45:36,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 00:45:36,806 INFO L262 TraceCheckSpWp]: Trace formula consists of 154 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-22 00:45:36,811 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 00:45:36,887 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 00:45:36,888 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 00:45:36,888 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 00:45:36,888 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1567291220] [2023-12-22 00:45:36,888 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1567291220] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 00:45:36,888 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 00:45:36,888 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-22 00:45:36,888 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [891438776] [2023-12-22 00:45:36,888 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 00:45:36,889 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-22 00:45:36,889 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 00:45:36,889 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-22 00:45:36,889 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-22 00:45:36,889 INFO L87 Difference]: Start difference. First operand 1237 states and 2167 transitions. Second operand has 3 states, 3 states have (on average 18.333333333333332) internal successors, (55), 3 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 00:45:36,935 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 00:45:36,935 INFO L93 Difference]: Finished difference Result 2085 states and 3469 transitions. [2023-12-22 00:45:36,936 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-22 00:45:36,936 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 18.333333333333332) internal successors, (55), 3 states have internal predecessors, (55), 0 states have call successors, (0), 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 55 [2023-12-22 00:45:36,936 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 00:45:36,941 INFO L225 Difference]: With dead ends: 2085 [2023-12-22 00:45:36,941 INFO L226 Difference]: Without dead ends: 1637 [2023-12-22 00:45:36,942 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 53 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-22 00:45:36,942 INFO L413 NwaCegarLoop]: 1583 mSDtfsCounter, 1493 mSDsluCounter, 77 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1493 SdHoareTripleChecker+Valid, 1660 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-22 00:45:36,942 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1493 Valid, 1660 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-22 00:45:36,944 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1637 states. [2023-12-22 00:45:36,964 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1637 to 1635. [2023-12-22 00:45:36,968 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1635 states, 1633 states have (on average 1.6919779546846294) internal successors, (2763), 1634 states have internal predecessors, (2763), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 00:45:36,973 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1635 states to 1635 states and 2763 transitions. [2023-12-22 00:45:36,973 INFO L78 Accepts]: Start accepts. Automaton has 1635 states and 2763 transitions. Word has length 55 [2023-12-22 00:45:36,973 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 00:45:36,973 INFO L495 AbstractCegarLoop]: Abstraction has 1635 states and 2763 transitions. [2023-12-22 00:45:36,974 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 18.333333333333332) internal successors, (55), 3 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 00:45:36,974 INFO L276 IsEmpty]: Start isEmpty. Operand 1635 states and 2763 transitions. [2023-12-22 00:45:36,974 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2023-12-22 00:45:36,974 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 00:45:36,975 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] [2023-12-22 00:45:36,979 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (8)] Forceful destruction successful, exit code 0 [2023-12-22 00:45:37,178 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 00:45:37,180 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 00:45:37,180 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 00:45:37,180 INFO L85 PathProgramCache]: Analyzing trace with hash 1337400586, now seen corresponding path program 1 times [2023-12-22 00:45:37,180 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 00:45:37,181 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [139858618] [2023-12-22 00:45:37,181 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 00:45:37,181 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 00:45:37,182 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 00:45:37,183 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-22 00:45:37,222 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (9)] Waiting until timeout for monitored process [2023-12-22 00:45:37,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 00:45:37,258 INFO L262 TraceCheckSpWp]: Trace formula consists of 154 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-22 00:45:37,259 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 00:45:37,308 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 00:45:37,309 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 00:45:37,309 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 00:45:37,309 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [139858618] [2023-12-22 00:45:37,309 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [139858618] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 00:45:37,309 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 00:45:37,309 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-22 00:45:37,309 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [387012745] [2023-12-22 00:45:37,309 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 00:45:37,309 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-22 00:45:37,310 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 00:45:37,310 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-22 00:45:37,310 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-22 00:45:37,310 INFO L87 Difference]: Start difference. First operand 1635 states and 2763 transitions. Second operand has 3 states, 3 states have (on average 18.333333333333332) internal successors, (55), 3 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 00:45:37,354 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 00:45:37,354 INFO L93 Difference]: Finished difference Result 3231 states and 5173 transitions. [2023-12-22 00:45:37,355 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-22 00:45:37,355 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 18.333333333333332) internal successors, (55), 3 states have internal predecessors, (55), 0 states have call successors, (0), 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 55 [2023-12-22 00:45:37,355 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 00:45:37,362 INFO L225 Difference]: With dead ends: 3231 [2023-12-22 00:45:37,362 INFO L226 Difference]: Without dead ends: 2385 [2023-12-22 00:45:37,363 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 53 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-22 00:45:37,364 INFO L413 NwaCegarLoop]: 1581 mSDtfsCounter, 1491 mSDsluCounter, 81 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1491 SdHoareTripleChecker+Valid, 1662 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-22 00:45:37,364 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1491 Valid, 1662 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-22 00:45:37,366 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2385 states. [2023-12-22 00:45:37,394 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2385 to 2383. [2023-12-22 00:45:37,398 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2383 states, 2381 states have (on average 1.620747585048299) internal successors, (3859), 2382 states have internal predecessors, (3859), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 00:45:37,402 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2383 states to 2383 states and 3859 transitions. [2023-12-22 00:45:37,402 INFO L78 Accepts]: Start accepts. Automaton has 2383 states and 3859 transitions. Word has length 55 [2023-12-22 00:45:37,402 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 00:45:37,402 INFO L495 AbstractCegarLoop]: Abstraction has 2383 states and 3859 transitions. [2023-12-22 00:45:37,402 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 18.333333333333332) internal successors, (55), 3 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 00:45:37,403 INFO L276 IsEmpty]: Start isEmpty. Operand 2383 states and 3859 transitions. [2023-12-22 00:45:37,403 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2023-12-22 00:45:37,403 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 00:45:37,403 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] [2023-12-22 00:45:37,408 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (9)] Forceful destruction successful, exit code 0 [2023-12-22 00:45:37,606 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 00:45:37,607 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 00:45:37,607 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 00:45:37,607 INFO L85 PathProgramCache]: Analyzing trace with hash -2068833270, now seen corresponding path program 1 times [2023-12-22 00:45:37,607 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 00:45:37,607 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1852678583] [2023-12-22 00:45:37,607 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 00:45:37,608 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 00:45:37,608 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 00:45:37,609 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-22 00:45:37,638 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (10)] Waiting until timeout for monitored process [2023-12-22 00:45:37,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 00:45:37,672 INFO L262 TraceCheckSpWp]: Trace formula consists of 154 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-22 00:45:37,673 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 00:45:37,713 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 00:45:37,713 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 00:45:37,714 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 00:45:37,714 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1852678583] [2023-12-22 00:45:37,714 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1852678583] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 00:45:37,714 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 00:45:37,714 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-22 00:45:37,714 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [248978323] [2023-12-22 00:45:37,714 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 00:45:37,714 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-22 00:45:37,715 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 00:45:37,715 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-22 00:45:37,715 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-22 00:45:37,715 INFO L87 Difference]: Start difference. First operand 2383 states and 3859 transitions. Second operand has 3 states, 3 states have (on average 18.333333333333332) internal successors, (55), 3 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 00:45:37,762 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 00:45:37,763 INFO L93 Difference]: Finished difference Result 5379 states and 8293 transitions. [2023-12-22 00:45:37,763 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-22 00:45:37,763 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 18.333333333333332) internal successors, (55), 3 states have internal predecessors, (55), 0 states have call successors, (0), 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 55 [2023-12-22 00:45:37,763 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 00:45:37,772 INFO L225 Difference]: With dead ends: 5379 [2023-12-22 00:45:37,773 INFO L226 Difference]: Without dead ends: 3785 [2023-12-22 00:45:37,775 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 53 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-22 00:45:37,775 INFO L413 NwaCegarLoop]: 1579 mSDtfsCounter, 1489 mSDsluCounter, 85 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1489 SdHoareTripleChecker+Valid, 1664 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-22 00:45:37,775 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1489 Valid, 1664 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-22 00:45:37,778 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3785 states. [2023-12-22 00:45:37,827 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3785 to 3783. [2023-12-22 00:45:37,832 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3783 states, 3781 states have (on average 1.5495900555408622) internal successors, (5859), 3782 states have internal predecessors, (5859), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 00:45:37,840 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3783 states to 3783 states and 5859 transitions. [2023-12-22 00:45:37,840 INFO L78 Accepts]: Start accepts. Automaton has 3783 states and 5859 transitions. Word has length 55 [2023-12-22 00:45:37,840 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 00:45:37,840 INFO L495 AbstractCegarLoop]: Abstraction has 3783 states and 5859 transitions. [2023-12-22 00:45:37,841 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 18.333333333333332) internal successors, (55), 3 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 00:45:37,841 INFO L276 IsEmpty]: Start isEmpty. Operand 3783 states and 5859 transitions. [2023-12-22 00:45:37,841 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2023-12-22 00:45:37,841 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 00:45:37,841 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 00:45:37,847 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (10)] Forceful destruction successful, exit code 0 [2023-12-22 00:45:38,044 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 00:45:38,044 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 00:45:38,045 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 00:45:38,045 INFO L85 PathProgramCache]: Analyzing trace with hash -1474848977, now seen corresponding path program 1 times [2023-12-22 00:45:38,045 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 00:45:38,045 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1714084408] [2023-12-22 00:45:38,045 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 00:45:38,045 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 00:45:38,046 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 00:45:38,047 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-22 00:45:38,048 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (11)] Waiting until timeout for monitored process [2023-12-22 00:45:38,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 00:45:38,114 INFO L262 TraceCheckSpWp]: Trace formula consists of 156 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-22 00:45:38,115 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 00:45:38,157 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 00:45:38,158 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 00:45:38,158 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 00:45:38,158 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1714084408] [2023-12-22 00:45:38,158 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1714084408] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 00:45:38,158 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 00:45:38,158 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-22 00:45:38,158 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [154710061] [2023-12-22 00:45:38,158 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 00:45:38,159 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-22 00:45:38,159 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 00:45:38,159 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-22 00:45:38,159 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-22 00:45:38,159 INFO L87 Difference]: Start difference. First operand 3783 states and 5859 transitions. Second operand has 3 states, 3 states have (on average 19.0) internal successors, (57), 3 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 00:45:38,212 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 00:45:38,212 INFO L93 Difference]: Finished difference Result 6862 states and 10473 transitions. [2023-12-22 00:45:38,212 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-22 00:45:38,213 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 19.0) internal successors, (57), 3 states have internal predecessors, (57), 0 states have call successors, (0), 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 57 [2023-12-22 00:45:38,213 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 00:45:38,224 INFO L225 Difference]: With dead ends: 6862 [2023-12-22 00:45:38,224 INFO L226 Difference]: Without dead ends: 5179 [2023-12-22 00:45:38,226 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 55 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-22 00:45:38,227 INFO L413 NwaCegarLoop]: 1590 mSDtfsCounter, 1494 mSDsluCounter, 69 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1494 SdHoareTripleChecker+Valid, 1659 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-22 00:45:38,227 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1494 Valid, 1659 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-22 00:45:38,231 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5179 states. [2023-12-22 00:45:38,345 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5179 to 5177. [2023-12-22 00:45:38,351 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5177 states, 5175 states have (on average 1.5221256038647344) internal successors, (7877), 5176 states have internal predecessors, (7877), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 00:45:38,360 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5177 states to 5177 states and 7877 transitions. [2023-12-22 00:45:38,360 INFO L78 Accepts]: Start accepts. Automaton has 5177 states and 7877 transitions. Word has length 57 [2023-12-22 00:45:38,360 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 00:45:38,360 INFO L495 AbstractCegarLoop]: Abstraction has 5177 states and 7877 transitions. [2023-12-22 00:45:38,360 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 19.0) internal successors, (57), 3 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 00:45:38,360 INFO L276 IsEmpty]: Start isEmpty. Operand 5177 states and 7877 transitions. [2023-12-22 00:45:38,361 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2023-12-22 00:45:38,361 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 00:45:38,361 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] [2023-12-22 00:45:38,377 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (11)] Forceful destruction successful, exit code 0 [2023-12-22 00:45:38,564 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 00:45:38,564 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 00:45:38,565 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 00:45:38,565 INFO L85 PathProgramCache]: Analyzing trace with hash -1139867461, now seen corresponding path program 1 times [2023-12-22 00:45:38,565 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 00:45:38,565 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1691386751] [2023-12-22 00:45:38,565 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 00:45:38,566 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 00:45:38,566 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 00:45:38,567 INFO L229 MonitoredProcess]: Starting monitored process 12 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-22 00:45:38,602 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (12)] Waiting until timeout for monitored process [2023-12-22 00:45:38,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 00:45:38,622 INFO L262 TraceCheckSpWp]: Trace formula consists of 127 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-22 00:45:38,623 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 00:45:38,697 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 00:45:38,697 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 00:45:38,697 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 00:45:38,697 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1691386751] [2023-12-22 00:45:38,697 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1691386751] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 00:45:38,697 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 00:45:38,697 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-22 00:45:38,697 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1770290233] [2023-12-22 00:45:38,697 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 00:45:38,698 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-22 00:45:38,698 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 00:45:38,698 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-22 00:45:38,698 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-22 00:45:38,698 INFO L87 Difference]: Start difference. First operand 5177 states and 7877 transitions. Second operand has 3 states, 3 states have (on average 19.666666666666668) internal successors, (59), 2 states have internal predecessors, (59), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 00:46:12,876 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 00:46:12,876 INFO L93 Difference]: Finished difference Result 6681 states and 10750 transitions. [2023-12-22 00:46:12,876 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-22 00:46:12,877 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 19.666666666666668) internal successors, (59), 2 states have internal predecessors, (59), 0 states have call successors, (0), 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 59 [2023-12-22 00:46:12,877 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 00:46:12,891 INFO L225 Difference]: With dead ends: 6681 [2023-12-22 00:46:12,892 INFO L226 Difference]: Without dead ends: 5928 [2023-12-22 00:46:12,893 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 57 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-22 00:46:12,893 INFO L413 NwaCegarLoop]: 522 mSDtfsCounter, 863 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 2277 mSolverCounterSat, 591 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 27.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 863 SdHoareTripleChecker+Valid, 529 SdHoareTripleChecker+Invalid, 2868 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 591 IncrementalHoareTripleChecker+Valid, 2277 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 34.0s IncrementalHoareTripleChecker+Time [2023-12-22 00:46:12,894 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [863 Valid, 529 Invalid, 2868 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [591 Valid, 2277 Invalid, 0 Unknown, 0 Unchecked, 34.0s Time] [2023-12-22 00:46:12,902 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5928 states. [2023-12-22 00:46:12,975 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5928 to 5928. [2023-12-22 00:46:12,992 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5928 states, 5926 states have (on average 1.5025312183597705) internal successors, (8904), 5927 states have internal predecessors, (8904), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 00:46:13,004 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5928 states to 5928 states and 8904 transitions. [2023-12-22 00:46:13,005 INFO L78 Accepts]: Start accepts. Automaton has 5928 states and 8904 transitions. Word has length 59 [2023-12-22 00:46:13,005 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 00:46:13,005 INFO L495 AbstractCegarLoop]: Abstraction has 5928 states and 8904 transitions. [2023-12-22 00:46:13,006 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 19.666666666666668) internal successors, (59), 2 states have internal predecessors, (59), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 00:46:13,006 INFO L276 IsEmpty]: Start isEmpty. Operand 5928 states and 8904 transitions. [2023-12-22 00:46:13,007 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2023-12-22 00:46:13,007 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 00:46:13,007 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 00:46:13,009 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (12)] Forceful destruction successful, exit code 0 [2023-12-22 00:46:13,207 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 00:46:13,207 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 00:46:13,208 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 00:46:13,208 INFO L85 PathProgramCache]: Analyzing trace with hash 1067448203, now seen corresponding path program 1 times [2023-12-22 00:46:13,208 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 00:46:13,208 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1709082532] [2023-12-22 00:46:13,208 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 00:46:13,208 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 00:46:13,209 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 00:46:13,209 INFO L229 MonitoredProcess]: Starting monitored process 13 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-22 00:46:13,211 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (13)] Waiting until timeout for monitored process [2023-12-22 00:46:13,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 00:46:13,280 INFO L262 TraceCheckSpWp]: Trace formula consists of 195 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-22 00:46:13,281 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 00:46:13,314 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 00:46:13,314 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 00:46:13,314 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 00:46:13,314 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1709082532] [2023-12-22 00:46:13,315 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1709082532] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 00:46:13,315 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 00:46:13,315 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-22 00:46:13,315 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [413614275] [2023-12-22 00:46:13,315 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 00:46:13,315 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-22 00:46:13,315 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 00:46:13,315 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-22 00:46:13,316 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-22 00:46:13,316 INFO L87 Difference]: Start difference. First operand 5928 states and 8904 transitions. Second operand has 3 states, 3 states have (on average 24.333333333333332) internal successors, (73), 3 states have internal predecessors, (73), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 00:46:13,382 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 00:46:13,382 INFO L93 Difference]: Finished difference Result 9023 states and 13486 transitions. [2023-12-22 00:46:13,382 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-22 00:46:13,383 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 24.333333333333332) internal successors, (73), 3 states have internal predecessors, (73), 0 states have call successors, (0), 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 73 [2023-12-22 00:46:13,383 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 00:46:13,401 INFO L225 Difference]: With dead ends: 9023 [2023-12-22 00:46:13,401 INFO L226 Difference]: Without dead ends: 4637 [2023-12-22 00:46:13,406 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 72 GetRequests, 71 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-22 00:46:13,406 INFO L413 NwaCegarLoop]: 1580 mSDtfsCounter, 50 mSDsluCounter, 1526 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 50 SdHoareTripleChecker+Valid, 3106 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-22 00:46:13,407 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [50 Valid, 3106 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-22 00:46:13,411 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4637 states. [2023-12-22 00:46:13,466 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4637 to 4635. [2023-12-22 00:46:13,471 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4635 states, 4633 states have (on average 1.5184545650766241) internal successors, (7035), 4634 states have internal predecessors, (7035), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 00:46:13,478 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4635 states to 4635 states and 7035 transitions. [2023-12-22 00:46:13,479 INFO L78 Accepts]: Start accepts. Automaton has 4635 states and 7035 transitions. Word has length 73 [2023-12-22 00:46:13,479 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 00:46:13,479 INFO L495 AbstractCegarLoop]: Abstraction has 4635 states and 7035 transitions. [2023-12-22 00:46:13,479 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 24.333333333333332) internal successors, (73), 3 states have internal predecessors, (73), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 00:46:13,479 INFO L276 IsEmpty]: Start isEmpty. Operand 4635 states and 7035 transitions. [2023-12-22 00:46:13,483 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2023-12-22 00:46:13,483 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 00:46:13,483 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 00:46:13,489 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (13)] Ended with exit code 0 [2023-12-22 00:46:13,687 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 00:46:13,687 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 00:46:13,688 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 00:46:13,688 INFO L85 PathProgramCache]: Analyzing trace with hash 865276784, now seen corresponding path program 1 times [2023-12-22 00:46:13,689 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 00:46:13,689 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1966981060] [2023-12-22 00:46:13,689 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 00:46:13,689 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 00:46:13,689 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 00:46:13,699 INFO L229 MonitoredProcess]: Starting monitored process 14 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-22 00:46:13,753 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (14)] Waiting until timeout for monitored process [2023-12-22 00:46:13,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 00:46:13,835 INFO L262 TraceCheckSpWp]: Trace formula consists of 197 conjuncts, 9 conjunts are in the unsatisfiable core [2023-12-22 00:46:13,836 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 00:46:14,628 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 12 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 00:46:14,628 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-22 00:46:14,972 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 12 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 00:46:14,972 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 00:46:14,973 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1966981060] [2023-12-22 00:46:14,973 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1966981060] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-22 00:46:14,973 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-22 00:46:14,973 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 8] total 16 [2023-12-22 00:46:14,973 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1739905610] [2023-12-22 00:46:14,973 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-22 00:46:14,973 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2023-12-22 00:46:14,973 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 00:46:14,974 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2023-12-22 00:46:14,974 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=198, Unknown=0, NotChecked=0, Total=240 [2023-12-22 00:46:14,974 INFO L87 Difference]: Start difference. First operand 4635 states and 7035 transitions. Second operand has 16 states, 16 states have (on average 8.5) internal successors, (136), 16 states have internal predecessors, (136), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 00:46:16,689 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 00:46:16,689 INFO L93 Difference]: Finished difference Result 12829 states and 18872 transitions. [2023-12-22 00:46:16,690 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2023-12-22 00:46:16,690 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 8.5) internal successors, (136), 16 states have internal predecessors, (136), 0 states have call successors, (0), 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 75 [2023-12-22 00:46:16,690 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 00:46:16,705 INFO L225 Difference]: With dead ends: 12829 [2023-12-22 00:46:16,705 INFO L226 Difference]: Without dead ends: 9755 [2023-12-22 00:46:16,710 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 164 GetRequests, 134 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 152 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=249, Invalid=743, Unknown=0, NotChecked=0, Total=992 [2023-12-22 00:46:16,711 INFO L413 NwaCegarLoop]: 1562 mSDtfsCounter, 5141 mSDsluCounter, 10838 mSDsCounter, 0 mSdLazyCounter, 809 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5141 SdHoareTripleChecker+Valid, 12400 SdHoareTripleChecker+Invalid, 825 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 809 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2023-12-22 00:46:16,712 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5141 Valid, 12400 Invalid, 825 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 809 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2023-12-22 00:46:16,718 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9755 states. [2023-12-22 00:46:16,834 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9755 to 7707. [2023-12-22 00:46:16,842 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7707 states, 7705 states have (on average 1.492407527579494) internal successors, (11499), 7706 states have internal predecessors, (11499), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 00:46:16,852 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7707 states to 7707 states and 11499 transitions. [2023-12-22 00:46:16,852 INFO L78 Accepts]: Start accepts. Automaton has 7707 states and 11499 transitions. Word has length 75 [2023-12-22 00:46:16,852 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 00:46:16,852 INFO L495 AbstractCegarLoop]: Abstraction has 7707 states and 11499 transitions. [2023-12-22 00:46:16,852 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 8.5) internal successors, (136), 16 states have internal predecessors, (136), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 00:46:16,852 INFO L276 IsEmpty]: Start isEmpty. Operand 7707 states and 11499 transitions. [2023-12-22 00:46:16,853 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2023-12-22 00:46:16,853 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 00:46:16,853 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 00:46:16,862 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (14)] Ended with exit code 0 [2023-12-22 00:46:17,057 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 00:46:17,057 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 00:46:17,057 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 00:46:17,058 INFO L85 PathProgramCache]: Analyzing trace with hash 1317293592, now seen corresponding path program 1 times [2023-12-22 00:46:17,058 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 00:46:17,058 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1369180776] [2023-12-22 00:46:17,058 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 00:46:17,058 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 00:46:17,058 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 00:46:17,059 INFO L229 MonitoredProcess]: Starting monitored process 15 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-22 00:46:17,077 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (15)] Waiting until timeout for monitored process [2023-12-22 00:46:17,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 00:46:17,158 INFO L262 TraceCheckSpWp]: Trace formula consists of 199 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-22 00:46:17,159 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 00:46:17,205 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 00:46:17,205 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 00:46:17,205 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 00:46:17,205 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1369180776] [2023-12-22 00:46:17,205 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1369180776] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 00:46:17,206 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 00:46:17,206 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-22 00:46:17,206 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [364073739] [2023-12-22 00:46:17,206 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 00:46:17,206 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-22 00:46:17,206 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 00:46:17,206 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-22 00:46:17,206 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-22 00:46:17,207 INFO L87 Difference]: Start difference. First operand 7707 states and 11499 transitions. Second operand has 3 states, 3 states have (on average 25.666666666666668) internal successors, (77), 3 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 00:46:17,273 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 00:46:17,273 INFO L93 Difference]: Finished difference Result 10783 states and 15989 transitions. [2023-12-22 00:46:17,274 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-22 00:46:17,274 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 25.666666666666668) internal successors, (77), 3 states have internal predecessors, (77), 0 states have call successors, (0), 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 77 [2023-12-22 00:46:17,274 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 00:46:17,281 INFO L225 Difference]: With dead ends: 10783 [2023-12-22 00:46:17,281 INFO L226 Difference]: Without dead ends: 4637 [2023-12-22 00:46:17,287 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 76 GetRequests, 75 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-22 00:46:17,288 INFO L413 NwaCegarLoop]: 1573 mSDtfsCounter, 44 mSDsluCounter, 1518 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 44 SdHoareTripleChecker+Valid, 3091 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-22 00:46:17,288 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [44 Valid, 3091 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-22 00:46:17,292 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4637 states. [2023-12-22 00:46:17,383 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4637 to 4635. [2023-12-22 00:46:17,386 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4635 states, 4633 states have (on average 1.502913878696309) internal successors, (6963), 4634 states have internal predecessors, (6963), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 00:46:17,391 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4635 states to 4635 states and 6963 transitions. [2023-12-22 00:46:17,392 INFO L78 Accepts]: Start accepts. Automaton has 4635 states and 6963 transitions. Word has length 77 [2023-12-22 00:46:17,392 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 00:46:17,392 INFO L495 AbstractCegarLoop]: Abstraction has 4635 states and 6963 transitions. [2023-12-22 00:46:17,392 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 25.666666666666668) internal successors, (77), 3 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 00:46:17,392 INFO L276 IsEmpty]: Start isEmpty. Operand 4635 states and 6963 transitions. [2023-12-22 00:46:17,393 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2023-12-22 00:46:17,393 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 00:46:17,393 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 00:46:17,410 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 (15)] Ended with exit code 0 [2023-12-22 00:46:17,596 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 00:46:17,596 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 00:46:17,596 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 00:46:17,596 INFO L85 PathProgramCache]: Analyzing trace with hash -1858897725, now seen corresponding path program 1 times [2023-12-22 00:46:17,597 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 00:46:17,597 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [682824064] [2023-12-22 00:46:17,597 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 00:46:17,597 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 00:46:17,597 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 00:46:17,613 INFO L229 MonitoredProcess]: Starting monitored process 16 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-22 00:46:17,653 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (16)] Waiting until timeout for monitored process [2023-12-22 00:46:17,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 00:46:17,711 INFO L262 TraceCheckSpWp]: Trace formula consists of 201 conjuncts, 9 conjunts are in the unsatisfiable core [2023-12-22 00:46:17,712 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 00:46:18,423 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 10 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 00:46:18,423 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-22 00:46:18,754 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 10 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 00:46:18,754 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 00:46:18,755 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [682824064] [2023-12-22 00:46:18,755 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [682824064] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-22 00:46:18,755 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-22 00:46:18,755 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 8] total 16 [2023-12-22 00:46:18,755 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [246222069] [2023-12-22 00:46:18,755 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-22 00:46:18,755 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2023-12-22 00:46:18,755 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 00:46:18,756 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2023-12-22 00:46:18,756 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=198, Unknown=0, NotChecked=0, Total=240 [2023-12-22 00:46:18,756 INFO L87 Difference]: Start difference. First operand 4635 states and 6963 transitions. Second operand has 16 states, 16 states have (on average 9.0) internal successors, (144), 16 states have internal predecessors, (144), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 00:46:19,615 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 00:46:19,616 INFO L93 Difference]: Finished difference Result 7817 states and 11516 transitions. [2023-12-22 00:46:19,616 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-12-22 00:46:19,616 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 9.0) internal successors, (144), 16 states have internal predecessors, (144), 0 states have call successors, (0), 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 78 [2023-12-22 00:46:19,616 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 00:46:19,623 INFO L225 Difference]: With dead ends: 7817 [2023-12-22 00:46:19,623 INFO L226 Difference]: Without dead ends: 4743 [2023-12-22 00:46:19,628 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 161 GetRequests, 140 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 73 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=106, Invalid=400, Unknown=0, NotChecked=0, Total=506 [2023-12-22 00:46:19,629 INFO L413 NwaCegarLoop]: 1498 mSDtfsCounter, 3075 mSDsluCounter, 11983 mSDsCounter, 0 mSdLazyCounter, 474 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3075 SdHoareTripleChecker+Valid, 13481 SdHoareTripleChecker+Invalid, 482 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 474 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-12-22 00:46:19,629 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3075 Valid, 13481 Invalid, 482 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 474 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-12-22 00:46:19,634 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4743 states. [2023-12-22 00:46:19,689 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4743 to 4645. [2023-12-22 00:46:19,694 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4645 states, 4643 states have (on average 1.5022614688778806) internal successors, (6975), 4644 states have internal predecessors, (6975), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 00:46:19,699 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4645 states to 4645 states and 6975 transitions. [2023-12-22 00:46:19,699 INFO L78 Accepts]: Start accepts. Automaton has 4645 states and 6975 transitions. Word has length 78 [2023-12-22 00:46:19,700 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 00:46:19,700 INFO L495 AbstractCegarLoop]: Abstraction has 4645 states and 6975 transitions. [2023-12-22 00:46:19,700 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 9.0) internal successors, (144), 16 states have internal predecessors, (144), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 00:46:19,700 INFO L276 IsEmpty]: Start isEmpty. Operand 4645 states and 6975 transitions. [2023-12-22 00:46:19,701 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2023-12-22 00:46:19,701 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 00:46:19,701 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 00:46:19,704 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (16)] Forceful destruction successful, exit code 0 [2023-12-22 00:46:19,904 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 00:46:19,904 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 00:46:19,905 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 00:46:19,905 INFO L85 PathProgramCache]: Analyzing trace with hash 354892535, now seen corresponding path program 1 times [2023-12-22 00:46:19,905 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 00:46:19,905 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1329018998] [2023-12-22 00:46:19,905 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 00:46:19,905 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 00:46:19,905 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 00:46:19,906 INFO L229 MonitoredProcess]: Starting monitored process 17 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-22 00:46:19,938 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (17)] Waiting until timeout for monitored process [2023-12-22 00:46:19,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 00:46:19,982 INFO L262 TraceCheckSpWp]: Trace formula consists of 203 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-22 00:46:19,983 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 00:46:20,033 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 00:46:20,034 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 00:46:20,034 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 00:46:20,034 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1329018998] [2023-12-22 00:46:20,034 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1329018998] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 00:46:20,034 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 00:46:20,034 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-22 00:46:20,034 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1758978315] [2023-12-22 00:46:20,034 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 00:46:20,034 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-22 00:46:20,034 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 00:46:20,035 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-22 00:46:20,035 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-22 00:46:20,035 INFO L87 Difference]: Start difference. First operand 4645 states and 6975 transitions. Second operand has 3 states, 3 states have (on average 26.666666666666668) internal successors, (80), 3 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 00:46:20,100 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 00:46:20,101 INFO L93 Difference]: Finished difference Result 6185 states and 9197 transitions. [2023-12-22 00:46:20,101 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-22 00:46:20,101 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 26.666666666666668) internal successors, (80), 3 states have internal predecessors, (80), 0 states have call successors, (0), 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 80 [2023-12-22 00:46:20,101 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 00:46:20,106 INFO L225 Difference]: With dead ends: 6185 [2023-12-22 00:46:20,106 INFO L226 Difference]: Without dead ends: 3111 [2023-12-22 00:46:20,108 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 79 GetRequests, 78 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-22 00:46:20,109 INFO L413 NwaCegarLoop]: 1566 mSDtfsCounter, 40 mSDsluCounter, 1510 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 40 SdHoareTripleChecker+Valid, 3076 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-22 00:46:20,109 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [40 Valid, 3076 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-22 00:46:20,111 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3111 states. [2023-12-22 00:46:20,144 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3111 to 3109. [2023-12-22 00:46:20,146 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3109 states, 3107 states have (on average 1.522690698422916) internal successors, (4731), 3108 states have internal predecessors, (4731), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 00:46:20,150 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3109 states to 3109 states and 4731 transitions. [2023-12-22 00:46:20,150 INFO L78 Accepts]: Start accepts. Automaton has 3109 states and 4731 transitions. Word has length 80 [2023-12-22 00:46:20,150 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 00:46:20,150 INFO L495 AbstractCegarLoop]: Abstraction has 3109 states and 4731 transitions. [2023-12-22 00:46:20,150 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 26.666666666666668) internal successors, (80), 3 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 00:46:20,150 INFO L276 IsEmpty]: Start isEmpty. Operand 3109 states and 4731 transitions. [2023-12-22 00:46:20,151 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2023-12-22 00:46:20,151 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 00:46:20,151 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 00:46:20,156 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (17)] Forceful destruction successful, exit code 0 [2023-12-22 00:46:20,354 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 00:46:20,354 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 00:46:20,355 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 00:46:20,355 INFO L85 PathProgramCache]: Analyzing trace with hash -1588615484, now seen corresponding path program 1 times [2023-12-22 00:46:20,355 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 00:46:20,355 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [620699257] [2023-12-22 00:46:20,355 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 00:46:20,355 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 00:46:20,355 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 00:46:20,357 INFO L229 MonitoredProcess]: Starting monitored process 18 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-22 00:46:20,367 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (18)] Waiting until timeout for monitored process [2023-12-22 00:46:20,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 00:46:20,428 INFO L262 TraceCheckSpWp]: Trace formula consists of 205 conjuncts, 9 conjunts are in the unsatisfiable core [2023-12-22 00:46:20,429 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 00:46:21,102 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 8 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 00:46:21,102 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-22 00:46:21,500 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 8 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 00:46:21,500 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 00:46:21,500 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [620699257] [2023-12-22 00:46:21,500 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [620699257] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-22 00:46:21,500 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-22 00:46:21,500 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 8] total 16 [2023-12-22 00:46:21,500 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1632062682] [2023-12-22 00:46:21,500 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-22 00:46:21,501 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2023-12-22 00:46:21,501 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 00:46:21,501 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2023-12-22 00:46:21,501 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=198, Unknown=0, NotChecked=0, Total=240 [2023-12-22 00:46:21,501 INFO L87 Difference]: Start difference. First operand 3109 states and 4731 transitions. Second operand has 16 states, 16 states have (on average 9.5) internal successors, (152), 16 states have internal predecessors, (152), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 00:46:22,920 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 00:46:22,920 INFO L93 Difference]: Finished difference Result 7269 states and 10591 transitions. [2023-12-22 00:46:22,921 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2023-12-22 00:46:22,921 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 9.5) internal successors, (152), 16 states have internal predecessors, (152), 0 states have call successors, (0), 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 81 [2023-12-22 00:46:22,921 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 00:46:22,927 INFO L225 Difference]: With dead ends: 7269 [2023-12-22 00:46:22,927 INFO L226 Difference]: Without dead ends: 5731 [2023-12-22 00:46:22,929 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 172 GetRequests, 146 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 106 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=183, Invalid=573, Unknown=0, NotChecked=0, Total=756 [2023-12-22 00:46:22,929 INFO L413 NwaCegarLoop]: 1574 mSDtfsCounter, 4882 mSDsluCounter, 12291 mSDsCounter, 0 mSdLazyCounter, 743 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4882 SdHoareTripleChecker+Valid, 13865 SdHoareTripleChecker+Invalid, 754 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 743 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2023-12-22 00:46:22,930 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4882 Valid, 13865 Invalid, 754 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 743 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2023-12-22 00:46:22,932 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5731 states. [2023-12-22 00:46:23,000 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5731 to 4789. [2023-12-22 00:46:23,004 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4789 states, 4787 states have (on average 1.4721119699185294) internal successors, (7047), 4788 states have internal predecessors, (7047), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 00:46:23,010 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4789 states to 4789 states and 7047 transitions. [2023-12-22 00:46:23,010 INFO L78 Accepts]: Start accepts. Automaton has 4789 states and 7047 transitions. Word has length 81 [2023-12-22 00:46:23,010 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 00:46:23,010 INFO L495 AbstractCegarLoop]: Abstraction has 4789 states and 7047 transitions. [2023-12-22 00:46:23,010 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 9.5) internal successors, (152), 16 states have internal predecessors, (152), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 00:46:23,010 INFO L276 IsEmpty]: Start isEmpty. Operand 4789 states and 7047 transitions. [2023-12-22 00:46:23,011 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2023-12-22 00:46:23,011 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 00:46:23,011 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 00:46:23,029 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (18)] Forceful destruction successful, exit code 0 [2023-12-22 00:46:23,230 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 18 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 00:46:23,230 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 00:46:23,230 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 00:46:23,230 INFO L85 PathProgramCache]: Analyzing trace with hash -684318716, now seen corresponding path program 1 times [2023-12-22 00:46:23,231 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 00:46:23,231 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1014442168] [2023-12-22 00:46:23,231 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 00:46:23,231 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 00:46:23,231 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 00:46:23,232 INFO L229 MonitoredProcess]: Starting monitored process 19 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-22 00:46:23,238 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (19)] Waiting until timeout for monitored process [2023-12-22 00:46:23,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 00:46:23,306 INFO L262 TraceCheckSpWp]: Trace formula consists of 207 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-22 00:46:23,308 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 00:46:23,349 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 00:46:23,349 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 00:46:23,350 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 00:46:23,350 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1014442168] [2023-12-22 00:46:23,350 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1014442168] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 00:46:23,350 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 00:46:23,350 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-22 00:46:23,350 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1321967138] [2023-12-22 00:46:23,350 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 00:46:23,350 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-22 00:46:23,350 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 00:46:23,351 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-22 00:46:23,351 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-22 00:46:23,351 INFO L87 Difference]: Start difference. First operand 4789 states and 7047 transitions. Second operand has 3 states, 3 states have (on average 27.666666666666668) internal successors, (83), 3 states have internal predecessors, (83), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 00:46:23,400 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 00:46:23,400 INFO L93 Difference]: Finished difference Result 6401 states and 9305 transitions. [2023-12-22 00:46:23,400 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-22 00:46:23,401 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 27.666666666666668) internal successors, (83), 3 states have internal predecessors, (83), 0 states have call successors, (0), 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 83 [2023-12-22 00:46:23,401 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 00:46:23,404 INFO L225 Difference]: With dead ends: 6401 [2023-12-22 00:46:23,404 INFO L226 Difference]: Without dead ends: 3183 [2023-12-22 00:46:23,407 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 82 GetRequests, 81 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-22 00:46:23,407 INFO L413 NwaCegarLoop]: 1559 mSDtfsCounter, 36 mSDsluCounter, 1502 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 36 SdHoareTripleChecker+Valid, 3061 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-22 00:46:23,407 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [36 Valid, 3061 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-22 00:46:23,409 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3183 states. [2023-12-22 00:46:23,459 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3183 to 3181. [2023-12-22 00:46:23,463 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3181 states, 3179 states have (on average 1.4995281535073923) internal successors, (4767), 3180 states have internal predecessors, (4767), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 00:46:23,466 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3181 states to 3181 states and 4767 transitions. [2023-12-22 00:46:23,466 INFO L78 Accepts]: Start accepts. Automaton has 3181 states and 4767 transitions. Word has length 83 [2023-12-22 00:46:23,466 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 00:46:23,466 INFO L495 AbstractCegarLoop]: Abstraction has 3181 states and 4767 transitions. [2023-12-22 00:46:23,466 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 27.666666666666668) internal successors, (83), 3 states have internal predecessors, (83), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 00:46:23,466 INFO L276 IsEmpty]: Start isEmpty. Operand 3181 states and 4767 transitions. [2023-12-22 00:46:23,467 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2023-12-22 00:46:23,467 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 00:46:23,467 INFO L195 NwaCegarLoop]: trace histogram [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] [2023-12-22 00:46:23,486 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 [2023-12-22 00:46:23,670 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 19 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 00:46:23,670 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 00:46:23,671 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 00:46:23,671 INFO L85 PathProgramCache]: Analyzing trace with hash -70081961, now seen corresponding path program 1 times [2023-12-22 00:46:23,671 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 00:46:23,671 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [999934610] [2023-12-22 00:46:23,671 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 00:46:23,671 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 00:46:23,671 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 00:46:23,672 INFO L229 MonitoredProcess]: Starting monitored process 20 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-22 00:46:23,704 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (20)] Waiting until timeout for monitored process [2023-12-22 00:46:23,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 00:46:23,747 INFO L262 TraceCheckSpWp]: Trace formula consists of 209 conjuncts, 9 conjunts are in the unsatisfiable core [2023-12-22 00:46:23,749 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 00:46:24,595 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 6 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 00:46:24,595 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-22 00:46:24,938 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 6 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 00:46:24,938 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 00:46:24,938 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [999934610] [2023-12-22 00:46:24,938 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [999934610] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-22 00:46:24,938 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-22 00:46:24,938 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 8] total 16 [2023-12-22 00:46:24,938 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1316406591] [2023-12-22 00:46:24,938 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-22 00:46:24,940 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2023-12-22 00:46:24,940 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 00:46:24,940 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2023-12-22 00:46:24,940 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=198, Unknown=0, NotChecked=0, Total=240 [2023-12-22 00:46:24,940 INFO L87 Difference]: Start difference. First operand 3181 states and 4767 transitions. Second operand has 16 states, 16 states have (on average 10.0) internal successors, (160), 16 states have internal predecessors, (160), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 00:46:26,308 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 00:46:26,309 INFO L93 Difference]: Finished difference Result 7341 states and 10459 transitions. [2023-12-22 00:46:26,309 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2023-12-22 00:46:26,309 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 10.0) internal successors, (160), 16 states have internal predecessors, (160), 0 states have call successors, (0), 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 84 [2023-12-22 00:46:26,309 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 00:46:26,314 INFO L225 Difference]: With dead ends: 7341 [2023-12-22 00:46:26,314 INFO L226 Difference]: Without dead ends: 5731 [2023-12-22 00:46:26,316 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 178 GetRequests, 152 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 106 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=183, Invalid=573, Unknown=0, NotChecked=0, Total=756 [2023-12-22 00:46:26,316 INFO L413 NwaCegarLoop]: 1556 mSDtfsCounter, 4917 mSDsluCounter, 12246 mSDsCounter, 0 mSdLazyCounter, 690 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4917 SdHoareTripleChecker+Valid, 13802 SdHoareTripleChecker+Invalid, 700 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 690 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2023-12-22 00:46:26,316 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4917 Valid, 13802 Invalid, 700 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 690 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2023-12-22 00:46:26,319 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5731 states. [2023-12-22 00:46:26,403 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5731 to 4933. [2023-12-22 00:46:26,407 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4933 states, 4931 states have (on average 1.4437233826809979) internal successors, (7119), 4932 states have internal predecessors, (7119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 00:46:26,413 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4933 states to 4933 states and 7119 transitions. [2023-12-22 00:46:26,413 INFO L78 Accepts]: Start accepts. Automaton has 4933 states and 7119 transitions. Word has length 84 [2023-12-22 00:46:26,413 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 00:46:26,413 INFO L495 AbstractCegarLoop]: Abstraction has 4933 states and 7119 transitions. [2023-12-22 00:46:26,413 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 10.0) internal successors, (160), 16 states have internal predecessors, (160), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 00:46:26,413 INFO L276 IsEmpty]: Start isEmpty. Operand 4933 states and 7119 transitions. [2023-12-22 00:46:26,414 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2023-12-22 00:46:26,414 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 00:46:26,414 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 00:46:26,418 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (20)] Forceful destruction successful, exit code 0 [2023-12-22 00:46:26,617 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 20 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 00:46:26,618 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 00:46:26,618 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 00:46:26,618 INFO L85 PathProgramCache]: Analyzing trace with hash 1065031971, now seen corresponding path program 1 times [2023-12-22 00:46:26,618 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 00:46:26,618 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1070845544] [2023-12-22 00:46:26,618 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 00:46:26,618 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 00:46:26,619 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 00:46:26,620 INFO L229 MonitoredProcess]: Starting monitored process 21 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-22 00:46:26,642 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (21)] Waiting until timeout for monitored process [2023-12-22 00:46:26,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 00:46:26,693 INFO L262 TraceCheckSpWp]: Trace formula consists of 211 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-22 00:46:26,694 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 00:46:26,732 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 00:46:26,733 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 00:46:26,733 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 00:46:26,733 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1070845544] [2023-12-22 00:46:26,733 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1070845544] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 00:46:26,733 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 00:46:26,733 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-22 00:46:26,733 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1173232107] [2023-12-22 00:46:26,733 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 00:46:26,734 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-22 00:46:26,734 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 00:46:26,734 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-22 00:46:26,735 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-22 00:46:26,735 INFO L87 Difference]: Start difference. First operand 4933 states and 7119 transitions. Second operand has 3 states, 3 states have (on average 28.666666666666668) internal successors, (86), 3 states have internal predecessors, (86), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 00:46:26,791 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 00:46:26,791 INFO L93 Difference]: Finished difference Result 6617 states and 9401 transitions. [2023-12-22 00:46:26,791 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-22 00:46:26,791 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 28.666666666666668) internal successors, (86), 3 states have internal predecessors, (86), 0 states have call successors, (0), 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 86 [2023-12-22 00:46:26,791 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 00:46:26,794 INFO L225 Difference]: With dead ends: 6617 [2023-12-22 00:46:26,794 INFO L226 Difference]: Without dead ends: 3255 [2023-12-22 00:46:26,797 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 85 GetRequests, 84 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-22 00:46:26,798 INFO L413 NwaCegarLoop]: 1552 mSDtfsCounter, 32 mSDsluCounter, 1494 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 32 SdHoareTripleChecker+Valid, 3046 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-22 00:46:26,798 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [32 Valid, 3046 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-22 00:46:26,800 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3255 states. [2023-12-22 00:46:26,844 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3255 to 3253. [2023-12-22 00:46:26,847 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3253 states, 3251 states have (on average 1.4737003998769609) internal successors, (4791), 3252 states have internal predecessors, (4791), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 00:46:26,851 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3253 states to 3253 states and 4791 transitions. [2023-12-22 00:46:26,851 INFO L78 Accepts]: Start accepts. Automaton has 3253 states and 4791 transitions. Word has length 86 [2023-12-22 00:46:26,851 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 00:46:26,851 INFO L495 AbstractCegarLoop]: Abstraction has 3253 states and 4791 transitions. [2023-12-22 00:46:26,851 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 28.666666666666668) internal successors, (86), 3 states have internal predecessors, (86), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 00:46:26,852 INFO L276 IsEmpty]: Start isEmpty. Operand 3253 states and 4791 transitions. [2023-12-22 00:46:26,852 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2023-12-22 00:46:26,852 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 00:46:26,852 INFO L195 NwaCegarLoop]: trace histogram [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] [2023-12-22 00:46:26,871 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (21)] Forceful destruction successful, exit code 0 [2023-12-22 00:46:27,055 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 21 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 00:46:27,055 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 00:46:27,056 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 00:46:27,056 INFO L85 PathProgramCache]: Analyzing trace with hash -786052072, now seen corresponding path program 1 times [2023-12-22 00:46:27,056 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 00:46:27,056 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1299452909] [2023-12-22 00:46:27,056 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 00:46:27,056 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 00:46:27,056 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 00:46:27,057 INFO L229 MonitoredProcess]: Starting monitored process 22 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-22 00:46:27,085 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (22)] Waiting until timeout for monitored process [2023-12-22 00:46:27,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 00:46:27,131 INFO L262 TraceCheckSpWp]: Trace formula consists of 213 conjuncts, 9 conjunts are in the unsatisfiable core [2023-12-22 00:46:27,132 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 00:46:27,943 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 4 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 00:46:27,943 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-22 00:46:28,285 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 4 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 00:46:28,285 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 00:46:28,286 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1299452909] [2023-12-22 00:46:28,286 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1299452909] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-22 00:46:28,286 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-22 00:46:28,286 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 8] total 16 [2023-12-22 00:46:28,286 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1142114872] [2023-12-22 00:46:28,286 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-22 00:46:28,286 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2023-12-22 00:46:28,286 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 00:46:28,290 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2023-12-22 00:46:28,290 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=198, Unknown=0, NotChecked=0, Total=240 [2023-12-22 00:46:28,290 INFO L87 Difference]: Start difference. First operand 3253 states and 4791 transitions. Second operand has 16 states, 16 states have (on average 10.5) internal successors, (168), 16 states have internal predecessors, (168), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 00:46:29,336 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 00:46:29,336 INFO L93 Difference]: Finished difference Result 6421 states and 8983 transitions. [2023-12-22 00:46:29,337 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2023-12-22 00:46:29,337 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 10.5) internal successors, (168), 16 states have internal predecessors, (168), 0 states have call successors, (0), 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 87 [2023-12-22 00:46:29,337 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 00:46:29,342 INFO L225 Difference]: With dead ends: 6421 [2023-12-22 00:46:29,342 INFO L226 Difference]: Without dead ends: 4739 [2023-12-22 00:46:29,344 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 183 GetRequests, 158 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 98 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=168, Invalid=534, Unknown=0, NotChecked=0, Total=702 [2023-12-22 00:46:29,344 INFO L413 NwaCegarLoop]: 1538 mSDtfsCounter, 1837 mSDsluCounter, 12186 mSDsCounter, 0 mSdLazyCounter, 622 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1837 SdHoareTripleChecker+Valid, 13724 SdHoareTripleChecker+Invalid, 631 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 622 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2023-12-22 00:46:29,344 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1837 Valid, 13724 Invalid, 631 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 622 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2023-12-22 00:46:29,349 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4739 states. [2023-12-22 00:46:29,423 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4739 to 4469. [2023-12-22 00:46:29,426 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4469 states, 4467 states have (on average 1.4235504813073652) internal successors, (6359), 4468 states have internal predecessors, (6359), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 00:46:29,432 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4469 states to 4469 states and 6359 transitions. [2023-12-22 00:46:29,433 INFO L78 Accepts]: Start accepts. Automaton has 4469 states and 6359 transitions. Word has length 87 [2023-12-22 00:46:29,433 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 00:46:29,433 INFO L495 AbstractCegarLoop]: Abstraction has 4469 states and 6359 transitions. [2023-12-22 00:46:29,433 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 10.5) internal successors, (168), 16 states have internal predecessors, (168), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 00:46:29,433 INFO L276 IsEmpty]: Start isEmpty. Operand 4469 states and 6359 transitions. [2023-12-22 00:46:29,434 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2023-12-22 00:46:29,434 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 00:46:29,434 INFO L195 NwaCegarLoop]: trace histogram [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] [2023-12-22 00:46:29,442 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 (22)] Ended with exit code 0 [2023-12-22 00:46:29,637 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 22 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 00:46:29,637 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 00:46:29,638 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 00:46:29,638 INFO L85 PathProgramCache]: Analyzing trace with hash -414806032, now seen corresponding path program 1 times [2023-12-22 00:46:29,638 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 00:46:29,638 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [136055687] [2023-12-22 00:46:29,638 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 00:46:29,638 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 00:46:29,638 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 00:46:29,639 INFO L229 MonitoredProcess]: Starting monitored process 23 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-22 00:46:29,640 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (23)] Waiting until timeout for monitored process [2023-12-22 00:46:29,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 00:46:29,703 INFO L262 TraceCheckSpWp]: Trace formula consists of 215 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-22 00:46:29,705 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 00:46:29,807 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 2 proven. 12 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-12-22 00:46:29,807 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-22 00:46:29,945 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 2 proven. 12 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-12-22 00:46:29,945 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 00:46:29,945 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [136055687] [2023-12-22 00:46:29,945 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [136055687] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-22 00:46:29,945 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-22 00:46:29,945 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 6 [2023-12-22 00:46:29,945 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [760339007] [2023-12-22 00:46:29,946 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-22 00:46:29,946 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-22 00:46:29,946 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 00:46:29,946 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-22 00:46:29,946 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2023-12-22 00:46:29,946 INFO L87 Difference]: Start difference. First operand 4469 states and 6359 transitions. Second operand has 6 states, 6 states have (on average 28.333333333333332) internal successors, (170), 6 states have internal predecessors, (170), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 00:46:30,194 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 00:46:30,194 INFO L93 Difference]: Finished difference Result 12863 states and 17224 transitions. [2023-12-22 00:46:30,194 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-22 00:46:30,194 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 28.333333333333332) internal successors, (170), 6 states have internal predecessors, (170), 0 states have call successors, (0), 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 89 [2023-12-22 00:46:30,195 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 00:46:30,204 INFO L225 Difference]: With dead ends: 12863 [2023-12-22 00:46:30,204 INFO L226 Difference]: Without dead ends: 9965 [2023-12-22 00:46:30,207 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 177 GetRequests, 172 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=23, Unknown=0, NotChecked=0, Total=42 [2023-12-22 00:46:30,207 INFO L413 NwaCegarLoop]: 1552 mSDtfsCounter, 3029 mSDsluCounter, 1708 mSDsCounter, 0 mSdLazyCounter, 41 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3029 SdHoareTripleChecker+Valid, 3260 SdHoareTripleChecker+Invalid, 53 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 41 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-22 00:46:30,208 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3029 Valid, 3260 Invalid, 53 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 41 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-22 00:46:30,213 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9965 states. [2023-12-22 00:46:30,428 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9965 to 9921. [2023-12-22 00:46:30,435 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9921 states, 9919 states have (on average 1.3014416775884665) internal successors, (12909), 9920 states have internal predecessors, (12909), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 00:46:30,445 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9921 states to 9921 states and 12909 transitions. [2023-12-22 00:46:30,445 INFO L78 Accepts]: Start accepts. Automaton has 9921 states and 12909 transitions. Word has length 89 [2023-12-22 00:46:30,445 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 00:46:30,445 INFO L495 AbstractCegarLoop]: Abstraction has 9921 states and 12909 transitions. [2023-12-22 00:46:30,445 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 28.333333333333332) internal successors, (170), 6 states have internal predecessors, (170), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 00:46:30,445 INFO L276 IsEmpty]: Start isEmpty. Operand 9921 states and 12909 transitions. [2023-12-22 00:46:30,448 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2023-12-22 00:46:30,448 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 00:46:30,448 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 00:46:30,454 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 (23)] Ended with exit code 0 [2023-12-22 00:46:30,650 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 23 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 00:46:30,651 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 00:46:30,651 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 00:46:30,651 INFO L85 PathProgramCache]: Analyzing trace with hash -354426684, now seen corresponding path program 1 times [2023-12-22 00:46:30,651 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 00:46:30,652 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [780055035] [2023-12-22 00:46:30,652 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 00:46:30,652 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 00:46:30,652 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 00:46:30,653 INFO L229 MonitoredProcess]: Starting monitored process 24 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-22 00:46:30,654 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (24)] Waiting until timeout for monitored process [2023-12-22 00:46:30,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 00:46:30,712 INFO L262 TraceCheckSpWp]: Trace formula consists of 209 conjuncts, 6 conjunts are in the unsatisfiable core [2023-12-22 00:46:30,714 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 00:46:31,385 INFO L134 CoverageAnalysis]: Checked inductivity of 56 backedges. 56 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 00:46:31,385 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 00:46:31,385 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 00:46:31,385 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [780055035] [2023-12-22 00:46:31,386 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [780055035] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 00:46:31,403 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 00:46:31,403 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-22 00:46:31,403 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1655825370] [2023-12-22 00:46:31,403 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 00:46:31,404 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-22 00:46:31,404 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 00:46:31,404 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-22 00:46:31,404 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-12-22 00:46:31,404 INFO L87 Difference]: Start difference. First operand 9921 states and 12909 transitions. Second operand has 4 states, 4 states have (on average 32.5) internal successors, (130), 3 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 00:47:02,162 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 00:47:02,163 INFO L93 Difference]: Finished difference Result 12212 states and 16436 transitions. [2023-12-22 00:47:02,163 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-22 00:47:02,163 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 32.5) internal successors, (130), 3 states have internal predecessors, (130), 0 states have call successors, (0), 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 130 [2023-12-22 00:47:02,164 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 00:47:02,172 INFO L225 Difference]: With dead ends: 12212 [2023-12-22 00:47:02,173 INFO L226 Difference]: Without dead ends: 10672 [2023-12-22 00:47:02,175 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 129 GetRequests, 127 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-12-22 00:47:02,175 INFO L413 NwaCegarLoop]: 738 mSDtfsCounter, 798 mSDsluCounter, 116 mSDsCounter, 0 mSdLazyCounter, 3017 mSolverCounterSat, 223 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 25.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 798 SdHoareTripleChecker+Valid, 854 SdHoareTripleChecker+Invalid, 3240 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 223 IncrementalHoareTripleChecker+Valid, 3017 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 30.4s IncrementalHoareTripleChecker+Time [2023-12-22 00:47:02,176 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [798 Valid, 854 Invalid, 3240 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [223 Valid, 3017 Invalid, 0 Unknown, 0 Unchecked, 30.4s Time] [2023-12-22 00:47:02,200 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10672 states. [2023-12-22 00:47:02,429 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10672 to 10672. [2023-12-22 00:47:02,437 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10672 states, 10670 states have (on average 1.2850984067478912) internal successors, (13712), 10671 states have internal predecessors, (13712), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 00:47:02,447 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10672 states to 10672 states and 13712 transitions. [2023-12-22 00:47:02,448 INFO L78 Accepts]: Start accepts. Automaton has 10672 states and 13712 transitions. Word has length 130 [2023-12-22 00:47:02,448 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 00:47:02,448 INFO L495 AbstractCegarLoop]: Abstraction has 10672 states and 13712 transitions. [2023-12-22 00:47:02,448 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 32.5) internal successors, (130), 3 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 00:47:02,448 INFO L276 IsEmpty]: Start isEmpty. Operand 10672 states and 13712 transitions. [2023-12-22 00:47:02,456 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 137 [2023-12-22 00:47:02,456 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 00:47:02,456 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 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] [2023-12-22 00:47:02,459 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (24)] Forceful destruction successful, exit code 0 [2023-12-22 00:47:02,658 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 24 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 00:47:02,659 INFO L420 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 00:47:02,659 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 00:47:02,659 INFO L85 PathProgramCache]: Analyzing trace with hash -388928806, now seen corresponding path program 1 times [2023-12-22 00:47:02,659 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 00:47:02,659 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1970025281] [2023-12-22 00:47:02,660 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 00:47:02,660 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 00:47:02,660 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 00:47:02,661 INFO L229 MonitoredProcess]: Starting monitored process 25 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-22 00:47:02,662 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (25)] Waiting until timeout for monitored process [2023-12-22 00:47:02,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 00:47:02,758 INFO L262 TraceCheckSpWp]: Trace formula consists of 309 conjuncts, 13 conjunts are in the unsatisfiable core [2023-12-22 00:47:02,760 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 00:47:03,865 INFO L134 CoverageAnalysis]: Checked inductivity of 109 backedges. 46 proven. 63 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 00:47:03,865 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-22 00:47:04,378 INFO L134 CoverageAnalysis]: Checked inductivity of 109 backedges. 46 proven. 63 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 00:47:04,378 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 00:47:04,378 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1970025281] [2023-12-22 00:47:04,378 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1970025281] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-22 00:47:04,379 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-22 00:47:04,379 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 13] total 25 [2023-12-22 00:47:04,379 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1460060448] [2023-12-22 00:47:04,379 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-22 00:47:04,379 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2023-12-22 00:47:04,379 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 00:47:04,380 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2023-12-22 00:47:04,380 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=95, Invalid=555, Unknown=0, NotChecked=0, Total=650 [2023-12-22 00:47:04,380 INFO L87 Difference]: Start difference. First operand 10672 states and 13712 transitions. Second operand has 26 states, 26 states have (on average 9.538461538461538) internal successors, (248), 25 states have internal predecessors, (248), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 00:47:06,461 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 00:47:06,461 INFO L93 Difference]: Finished difference Result 16328 states and 20808 transitions. [2023-12-22 00:47:06,462 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2023-12-22 00:47:06,462 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 9.538461538461538) internal successors, (248), 25 states have internal predecessors, (248), 0 states have call successors, (0), 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 136 [2023-12-22 00:47:06,462 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 00:47:06,508 INFO L225 Difference]: With dead ends: 16328 [2023-12-22 00:47:06,508 INFO L226 Difference]: Without dead ends: 10790 [2023-12-22 00:47:06,511 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 287 GetRequests, 246 SyntacticMatches, 0 SemanticMatches, 41 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 347 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=383, Invalid=1423, Unknown=0, NotChecked=0, Total=1806 [2023-12-22 00:47:06,515 INFO L413 NwaCegarLoop]: 1529 mSDtfsCounter, 15179 mSDsluCounter, 9474 mSDsCounter, 0 mSdLazyCounter, 979 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 15179 SdHoareTripleChecker+Valid, 11003 SdHoareTripleChecker+Invalid, 998 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 979 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2023-12-22 00:47:06,515 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [15179 Valid, 11003 Invalid, 998 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 979 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2023-12-22 00:47:06,519 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10790 states. [2023-12-22 00:47:06,832 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10790 to 10672. [2023-12-22 00:47:06,839 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10672 states, 10670 states have (on average 1.274601686972821) internal successors, (13600), 10671 states have internal predecessors, (13600), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 00:47:06,847 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10672 states to 10672 states and 13600 transitions. [2023-12-22 00:47:06,847 INFO L78 Accepts]: Start accepts. Automaton has 10672 states and 13600 transitions. Word has length 136 [2023-12-22 00:47:06,847 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 00:47:06,847 INFO L495 AbstractCegarLoop]: Abstraction has 10672 states and 13600 transitions. [2023-12-22 00:47:06,847 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 9.538461538461538) internal successors, (248), 25 states have internal predecessors, (248), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 00:47:06,847 INFO L276 IsEmpty]: Start isEmpty. Operand 10672 states and 13600 transitions. [2023-12-22 00:47:06,850 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2023-12-22 00:47:06,850 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 00:47:06,850 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 00:47:06,854 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (25)] Ended with exit code 0 [2023-12-22 00:47:07,053 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 25 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 00:47:07,054 INFO L420 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 00:47:07,054 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 00:47:07,054 INFO L85 PathProgramCache]: Analyzing trace with hash -289737001, now seen corresponding path program 1 times [2023-12-22 00:47:07,054 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 00:47:07,055 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [161171649] [2023-12-22 00:47:07,055 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 00:47:07,055 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 00:47:07,055 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 00:47:07,056 INFO L229 MonitoredProcess]: Starting monitored process 26 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-22 00:47:07,058 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (26)] Waiting until timeout for monitored process [2023-12-22 00:47:07,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 00:47:07,157 INFO L262 TraceCheckSpWp]: Trace formula consists of 311 conjuncts, 13 conjunts are in the unsatisfiable core [2023-12-22 00:47:07,159 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 00:47:08,231 INFO L134 CoverageAnalysis]: Checked inductivity of 110 backedges. 38 proven. 72 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 00:47:08,231 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-22 00:47:08,786 INFO L134 CoverageAnalysis]: Checked inductivity of 110 backedges. 38 proven. 72 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 00:47:08,786 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 00:47:08,786 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [161171649] [2023-12-22 00:47:08,786 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [161171649] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-22 00:47:08,786 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-22 00:47:08,786 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 13] total 25 [2023-12-22 00:47:08,787 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [34995745] [2023-12-22 00:47:08,787 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-22 00:47:08,787 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2023-12-22 00:47:08,787 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 00:47:08,787 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2023-12-22 00:47:08,788 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=95, Invalid=555, Unknown=0, NotChecked=0, Total=650 [2023-12-22 00:47:08,788 INFO L87 Difference]: Start difference. First operand 10672 states and 13600 transitions. Second operand has 26 states, 26 states have (on average 9.76923076923077) internal successors, (254), 25 states have internal predecessors, (254), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 00:47:10,609 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 00:47:10,610 INFO L93 Difference]: Finished difference Result 17960 states and 22623 transitions. [2023-12-22 00:47:10,610 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2023-12-22 00:47:10,610 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 9.76923076923077) internal successors, (254), 25 states have internal predecessors, (254), 0 states have call successors, (0), 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 137 [2023-12-22 00:47:10,610 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 00:47:10,619 INFO L225 Difference]: With dead ends: 17960 [2023-12-22 00:47:10,619 INFO L226 Difference]: Without dead ends: 10674 [2023-12-22 00:47:10,623 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 290 GetRequests, 248 SyntacticMatches, 0 SemanticMatches, 42 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 358 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=403, Invalid=1489, Unknown=0, NotChecked=0, Total=1892 [2023-12-22 00:47:10,624 INFO L413 NwaCegarLoop]: 1529 mSDtfsCounter, 15060 mSDsluCounter, 7913 mSDsCounter, 0 mSdLazyCounter, 889 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 15060 SdHoareTripleChecker+Valid, 9442 SdHoareTripleChecker+Invalid, 910 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 889 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2023-12-22 00:47:10,624 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [15060 Valid, 9442 Invalid, 910 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 889 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2023-12-22 00:47:10,628 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10674 states. [2023-12-22 00:47:10,919 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10674 to 10672. [2023-12-22 00:47:10,927 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10672 states, 10670 states have (on average 1.26485473289597) internal successors, (13496), 10671 states have internal predecessors, (13496), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 00:47:10,937 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10672 states to 10672 states and 13496 transitions. [2023-12-22 00:47:10,938 INFO L78 Accepts]: Start accepts. Automaton has 10672 states and 13496 transitions. Word has length 137 [2023-12-22 00:47:10,938 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 00:47:10,938 INFO L495 AbstractCegarLoop]: Abstraction has 10672 states and 13496 transitions. [2023-12-22 00:47:10,938 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 9.76923076923077) internal successors, (254), 25 states have internal predecessors, (254), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 00:47:10,938 INFO L276 IsEmpty]: Start isEmpty. Operand 10672 states and 13496 transitions. [2023-12-22 00:47:10,941 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 139 [2023-12-22 00:47:10,941 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 00:47:10,941 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 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] [2023-12-22 00:47:10,945 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (26)] Ended with exit code 0 [2023-12-22 00:47:11,144 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 26 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 00:47:11,145 INFO L420 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 00:47:11,145 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 00:47:11,145 INFO L85 PathProgramCache]: Analyzing trace with hash -796660214, now seen corresponding path program 1 times [2023-12-22 00:47:11,145 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 00:47:11,145 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1167435911] [2023-12-22 00:47:11,145 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 00:47:11,146 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 00:47:11,146 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 00:47:11,146 INFO L229 MonitoredProcess]: Starting monitored process 27 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-22 00:47:11,148 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (27)] Waiting until timeout for monitored process [2023-12-22 00:47:11,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 00:47:11,243 INFO L262 TraceCheckSpWp]: Trace formula consists of 313 conjuncts, 13 conjunts are in the unsatisfiable core [2023-12-22 00:47:11,245 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 00:47:12,433 INFO L134 CoverageAnalysis]: Checked inductivity of 111 backedges. 30 proven. 81 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 00:47:12,434 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-22 00:47:12,799 INFO L134 CoverageAnalysis]: Checked inductivity of 111 backedges. 30 proven. 81 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 00:47:12,800 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 00:47:12,800 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1167435911] [2023-12-22 00:47:12,800 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1167435911] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-22 00:47:12,800 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-22 00:47:12,800 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 13] total 25 [2023-12-22 00:47:12,800 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1951815844] [2023-12-22 00:47:12,800 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-22 00:47:12,800 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2023-12-22 00:47:12,800 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 00:47:12,801 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2023-12-22 00:47:12,801 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=95, Invalid=555, Unknown=0, NotChecked=0, Total=650 [2023-12-22 00:47:12,801 INFO L87 Difference]: Start difference. First operand 10672 states and 13496 transitions. Second operand has 26 states, 26 states have (on average 10.0) internal successors, (260), 25 states have internal predecessors, (260), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 00:47:17,721 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 00:47:17,722 INFO L93 Difference]: Finished difference Result 39376 states and 49185 transitions. [2023-12-22 00:47:17,722 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 73 states. [2023-12-22 00:47:17,722 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 10.0) internal successors, (260), 25 states have internal predecessors, (260), 0 states have call successors, (0), 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 138 [2023-12-22 00:47:17,723 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 00:47:17,758 INFO L225 Difference]: With dead ends: 39376 [2023-12-22 00:47:17,758 INFO L226 Difference]: Without dead ends: 35886 [2023-12-22 00:47:17,766 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 344 GetRequests, 250 SyntacticMatches, 0 SemanticMatches, 94 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2689 ImplicationChecksByTransitivity, 3.3s TimeCoverageRelationStatistics Valid=1484, Invalid=7636, Unknown=0, NotChecked=0, Total=9120 [2023-12-22 00:47:17,766 INFO L413 NwaCegarLoop]: 1529 mSDtfsCounter, 19823 mSDsluCounter, 6551 mSDsCounter, 0 mSdLazyCounter, 916 mSolverCounterSat, 41 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 19823 SdHoareTripleChecker+Valid, 8080 SdHoareTripleChecker+Invalid, 957 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 41 IncrementalHoareTripleChecker+Valid, 916 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2023-12-22 00:47:17,767 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [19823 Valid, 8080 Invalid, 957 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [41 Valid, 916 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2023-12-22 00:47:17,786 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35886 states. [2023-12-22 00:47:18,331 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35886 to 10672. [2023-12-22 00:47:18,339 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10672 states, 10670 states have (on average 1.2596063730084348) internal successors, (13440), 10671 states have internal predecessors, (13440), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 00:47:18,350 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10672 states to 10672 states and 13440 transitions. [2023-12-22 00:47:18,350 INFO L78 Accepts]: Start accepts. Automaton has 10672 states and 13440 transitions. Word has length 138 [2023-12-22 00:47:18,350 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 00:47:18,350 INFO L495 AbstractCegarLoop]: Abstraction has 10672 states and 13440 transitions. [2023-12-22 00:47:18,350 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 10.0) internal successors, (260), 25 states have internal predecessors, (260), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 00:47:18,350 INFO L276 IsEmpty]: Start isEmpty. Operand 10672 states and 13440 transitions. [2023-12-22 00:47:18,353 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 140 [2023-12-22 00:47:18,353 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 00:47:18,353 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 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] [2023-12-22 00:47:18,357 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (27)] Ended with exit code 0 [2023-12-22 00:47:18,556 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 27 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 00:47:18,557 INFO L420 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 00:47:18,557 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 00:47:18,557 INFO L85 PathProgramCache]: Analyzing trace with hash -1442109241, now seen corresponding path program 1 times [2023-12-22 00:47:18,558 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 00:47:18,558 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1076311933] [2023-12-22 00:47:18,558 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 00:47:18,558 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 00:47:18,558 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 00:47:18,559 INFO L229 MonitoredProcess]: Starting monitored process 28 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-22 00:47:18,565 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (28)] Waiting until timeout for monitored process [2023-12-22 00:47:18,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 00:47:18,660 INFO L262 TraceCheckSpWp]: Trace formula consists of 315 conjuncts, 13 conjunts are in the unsatisfiable core [2023-12-22 00:47:18,662 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 00:47:19,879 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 22 proven. 90 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 00:47:19,879 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-22 00:47:20,318 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 22 proven. 90 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 00:47:20,318 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 00:47:20,318 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1076311933] [2023-12-22 00:47:20,318 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1076311933] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-22 00:47:20,318 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-22 00:47:20,318 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 13] total 25 [2023-12-22 00:47:20,318 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [550131160] [2023-12-22 00:47:20,318 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-22 00:47:20,319 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2023-12-22 00:47:20,319 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 00:47:20,319 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2023-12-22 00:47:20,319 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=95, Invalid=555, Unknown=0, NotChecked=0, Total=650 [2023-12-22 00:47:20,319 INFO L87 Difference]: Start difference. First operand 10672 states and 13440 transitions. Second operand has 26 states, 26 states have (on average 10.23076923076923) internal successors, (266), 25 states have internal predecessors, (266), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 00:47:22,327 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 00:47:22,327 INFO L93 Difference]: Finished difference Result 14624 states and 18276 transitions. [2023-12-22 00:47:22,328 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2023-12-22 00:47:22,328 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 10.23076923076923) internal successors, (266), 25 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 139 [2023-12-22 00:47:22,328 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 00:47:22,337 INFO L225 Difference]: With dead ends: 14624 [2023-12-22 00:47:22,337 INFO L226 Difference]: Without dead ends: 11278 [2023-12-22 00:47:22,342 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 295 GetRequests, 252 SyntacticMatches, 0 SemanticMatches, 43 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 378 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=416, Invalid=1564, Unknown=0, NotChecked=0, Total=1980 [2023-12-22 00:47:22,342 INFO L413 NwaCegarLoop]: 1529 mSDtfsCounter, 16629 mSDsluCounter, 7964 mSDsCounter, 0 mSdLazyCounter, 844 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 16629 SdHoareTripleChecker+Valid, 9493 SdHoareTripleChecker+Invalid, 862 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 844 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2023-12-22 00:47:22,342 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [16629 Valid, 9493 Invalid, 862 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 844 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2023-12-22 00:47:22,346 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11278 states. [2023-12-22 00:47:22,745 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11278 to 10672. [2023-12-22 00:47:22,751 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10672 states, 10670 states have (on average 1.2543580131208998) internal successors, (13384), 10671 states have internal predecessors, (13384), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 00:47:22,761 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10672 states to 10672 states and 13384 transitions. [2023-12-22 00:47:22,762 INFO L78 Accepts]: Start accepts. Automaton has 10672 states and 13384 transitions. Word has length 139 [2023-12-22 00:47:22,762 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 00:47:22,762 INFO L495 AbstractCegarLoop]: Abstraction has 10672 states and 13384 transitions. [2023-12-22 00:47:22,762 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 10.23076923076923) internal successors, (266), 25 states have internal predecessors, (266), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 00:47:22,762 INFO L276 IsEmpty]: Start isEmpty. Operand 10672 states and 13384 transitions. [2023-12-22 00:47:22,778 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 141 [2023-12-22 00:47:22,778 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 00:47:22,778 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 00:47:22,782 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (28)] Ended with exit code 0 [2023-12-22 00:47:22,980 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 28 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 00:47:22,981 INFO L420 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 00:47:22,981 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 00:47:22,981 INFO L85 PathProgramCache]: Analyzing trace with hash -1901012678, now seen corresponding path program 1 times [2023-12-22 00:47:22,982 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 00:47:22,982 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1471426777] [2023-12-22 00:47:22,982 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 00:47:22,982 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 00:47:22,982 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 00:47:22,983 INFO L229 MonitoredProcess]: Starting monitored process 29 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-22 00:47:23,013 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (29)] Waiting until timeout for monitored process [2023-12-22 00:47:23,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 00:47:23,143 INFO L262 TraceCheckSpWp]: Trace formula consists of 317 conjuncts, 14 conjunts are in the unsatisfiable core [2023-12-22 00:47:23,145 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 00:47:24,504 INFO L134 CoverageAnalysis]: Checked inductivity of 113 backedges. 13 proven. 100 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 00:47:24,505 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-22 00:47:25,138 INFO L134 CoverageAnalysis]: Checked inductivity of 113 backedges. 13 proven. 100 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 00:47:25,138 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 00:47:25,138 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1471426777] [2023-12-22 00:47:25,138 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1471426777] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-22 00:47:25,138 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-22 00:47:25,138 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 13] total 26 [2023-12-22 00:47:25,138 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2110559456] [2023-12-22 00:47:25,138 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-22 00:47:25,140 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2023-12-22 00:47:25,140 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 00:47:25,141 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2023-12-22 00:47:25,141 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=75, Invalid=575, Unknown=0, NotChecked=0, Total=650 [2023-12-22 00:47:25,141 INFO L87 Difference]: Start difference. First operand 10672 states and 13384 transitions. Second operand has 26 states, 26 states have (on average 10.538461538461538) internal successors, (274), 26 states have internal predecessors, (274), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 00:47:30,353 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 00:47:30,354 INFO L93 Difference]: Finished difference Result 16438 states and 20247 transitions. [2023-12-22 00:47:30,354 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 47 states. [2023-12-22 00:47:30,354 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 10.538461538461538) internal successors, (274), 26 states have internal predecessors, (274), 0 states have call successors, (0), 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 140 [2023-12-22 00:47:30,354 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 00:47:30,364 INFO L225 Difference]: With dead ends: 16438 [2023-12-22 00:47:30,364 INFO L226 Difference]: Without dead ends: 12556 [2023-12-22 00:47:30,366 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 320 GetRequests, 254 SyntacticMatches, 0 SemanticMatches, 66 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 939 ImplicationChecksByTransitivity, 3.0s TimeCoverageRelationStatistics Valid=760, Invalid=3796, Unknown=0, NotChecked=0, Total=4556 [2023-12-22 00:47:30,367 INFO L413 NwaCegarLoop]: 1619 mSDtfsCounter, 2113 mSDsluCounter, 23690 mSDsCounter, 0 mSdLazyCounter, 2313 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2113 SdHoareTripleChecker+Valid, 25309 SdHoareTripleChecker+Invalid, 2328 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 2313 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2023-12-22 00:47:30,367 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2113 Valid, 25309 Invalid, 2328 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 2313 Invalid, 0 Unknown, 0 Unchecked, 2.2s Time] [2023-12-22 00:47:30,372 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12556 states. [2023-12-22 00:47:30,651 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12556 to 7520. [2023-12-22 00:47:30,656 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7520 states, 7518 states have (on average 1.2732109603617983) internal successors, (9572), 7519 states have internal predecessors, (9572), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 00:47:30,661 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7520 states to 7520 states and 9572 transitions. [2023-12-22 00:47:30,661 INFO L78 Accepts]: Start accepts. Automaton has 7520 states and 9572 transitions. Word has length 140 [2023-12-22 00:47:30,662 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 00:47:30,662 INFO L495 AbstractCegarLoop]: Abstraction has 7520 states and 9572 transitions. [2023-12-22 00:47:30,662 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 10.538461538461538) internal successors, (274), 26 states have internal predecessors, (274), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 00:47:30,662 INFO L276 IsEmpty]: Start isEmpty. Operand 7520 states and 9572 transitions. [2023-12-22 00:47:30,663 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 141 [2023-12-22 00:47:30,663 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 00:47:30,663 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 00:47:30,670 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (29)] Ended with exit code 0 [2023-12-22 00:47:30,866 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 29 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 00:47:30,866 INFO L420 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 00:47:30,867 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 00:47:30,867 INFO L85 PathProgramCache]: Analyzing trace with hash -1546307106, now seen corresponding path program 1 times [2023-12-22 00:47:30,867 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 00:47:30,867 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1639299019] [2023-12-22 00:47:30,867 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 00:47:30,867 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 [2023-12-22 00:47:30,867 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 00:47:30,868 INFO L229 MonitoredProcess]: Starting monitored process 30 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-22 00:47:30,869 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (30)] Waiting until timeout for monitored process [2023-12-22 00:47:30,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 00:47:30,967 INFO L262 TraceCheckSpWp]: Trace formula consists of 317 conjuncts, 14 conjunts are in the unsatisfiable core [2023-12-22 00:47:30,969 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 00:47:32,391 INFO L134 CoverageAnalysis]: Checked inductivity of 113 backedges. 22 proven. 91 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 00:47:32,392 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-22 00:47:32,975 INFO L134 CoverageAnalysis]: Checked inductivity of 113 backedges. 22 proven. 91 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 00:47:32,975 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 00:47:32,976 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1639299019] [2023-12-22 00:47:32,976 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1639299019] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-22 00:47:32,976 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-22 00:47:32,976 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 13] total 26 [2023-12-22 00:47:32,976 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2097260935] [2023-12-22 00:47:32,976 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-22 00:47:32,976 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2023-12-22 00:47:32,976 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 00:47:32,977 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2023-12-22 00:47:32,977 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=75, Invalid=575, Unknown=0, NotChecked=0, Total=650 [2023-12-22 00:47:32,977 INFO L87 Difference]: Start difference. First operand 7520 states and 9572 transitions. Second operand has 26 states, 26 states have (on average 10.346153846153847) internal successors, (269), 26 states have internal predecessors, (269), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 00:47:38,622 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 00:47:38,622 INFO L93 Difference]: Finished difference Result 11772 states and 14681 transitions. [2023-12-22 00:47:38,623 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 49 states. [2023-12-22 00:47:38,623 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 10.346153846153847) internal successors, (269), 26 states have internal predecessors, (269), 0 states have call successors, (0), 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 140 [2023-12-22 00:47:38,623 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 00:47:38,631 INFO L225 Difference]: With dead ends: 11772 [2023-12-22 00:47:38,631 INFO L226 Difference]: Without dead ends: 10622 [2023-12-22 00:47:38,634 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 322 GetRequests, 254 SyntacticMatches, 0 SemanticMatches, 68 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1010 ImplicationChecksByTransitivity, 3.2s TimeCoverageRelationStatistics Valid=804, Invalid=4026, Unknown=0, NotChecked=0, Total=4830 [2023-12-22 00:47:38,634 INFO L413 NwaCegarLoop]: 1633 mSDtfsCounter, 5115 mSDsluCounter, 25367 mSDsCounter, 0 mSdLazyCounter, 2463 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5115 SdHoareTripleChecker+Valid, 27000 SdHoareTripleChecker+Invalid, 2481 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 2463 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2023-12-22 00:47:38,634 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5115 Valid, 27000 Invalid, 2481 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 2463 Invalid, 0 Unknown, 0 Unchecked, 2.4s Time] [2023-12-22 00:47:38,638 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10622 states. [2023-12-22 00:47:39,020 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10622 to 9183. [2023-12-22 00:47:39,025 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9183 states, 9181 states have (on average 1.2587953381984534) internal successors, (11557), 9182 states have internal predecessors, (11557), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 00:47:39,032 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9183 states to 9183 states and 11557 transitions. [2023-12-22 00:47:39,032 INFO L78 Accepts]: Start accepts. Automaton has 9183 states and 11557 transitions. Word has length 140 [2023-12-22 00:47:39,032 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 00:47:39,032 INFO L495 AbstractCegarLoop]: Abstraction has 9183 states and 11557 transitions. [2023-12-22 00:47:39,033 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 10.346153846153847) internal successors, (269), 26 states have internal predecessors, (269), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 00:47:39,033 INFO L276 IsEmpty]: Start isEmpty. Operand 9183 states and 11557 transitions. [2023-12-22 00:47:39,034 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 141 [2023-12-22 00:47:39,034 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 00:47:39,034 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 00:47:39,041 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (30)] Forceful destruction successful, exit code 0 [2023-12-22 00:47:39,237 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 30 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 00:47:39,237 INFO L420 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 00:47:39,238 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 00:47:39,238 INFO L85 PathProgramCache]: Analyzing trace with hash 239574970, now seen corresponding path program 1 times [2023-12-22 00:47:39,238 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 00:47:39,238 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1062920162] [2023-12-22 00:47:39,238 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 00:47:39,238 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 00:47:39,238 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 00:47:39,240 INFO L229 MonitoredProcess]: Starting monitored process 31 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-22 00:47:39,241 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (31)] Waiting until timeout for monitored process [2023-12-22 00:47:39,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 00:47:39,379 INFO L262 TraceCheckSpWp]: Trace formula consists of 317 conjuncts, 14 conjunts are in the unsatisfiable core [2023-12-22 00:47:39,381 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 00:47:40,610 INFO L134 CoverageAnalysis]: Checked inductivity of 113 backedges. 31 proven. 82 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 00:47:40,610 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-22 00:47:41,176 INFO L134 CoverageAnalysis]: Checked inductivity of 113 backedges. 31 proven. 82 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 00:47:41,177 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 00:47:41,177 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1062920162] [2023-12-22 00:47:41,177 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1062920162] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-22 00:47:41,177 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-22 00:47:41,177 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 13] total 26 [2023-12-22 00:47:41,177 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [684012744] [2023-12-22 00:47:41,177 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-22 00:47:41,177 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2023-12-22 00:47:41,178 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 00:47:41,178 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2023-12-22 00:47:41,179 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=75, Invalid=575, Unknown=0, NotChecked=0, Total=650 [2023-12-22 00:47:41,179 INFO L87 Difference]: Start difference. First operand 9183 states and 11557 transitions. Second operand has 26 states, 26 states have (on average 10.153846153846153) internal successors, (264), 26 states have internal predecessors, (264), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 00:47:44,639 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 00:47:44,641 INFO L93 Difference]: Finished difference Result 15524 states and 19266 transitions. [2023-12-22 00:47:44,641 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2023-12-22 00:47:44,641 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 10.153846153846153) internal successors, (264), 26 states have internal predecessors, (264), 0 states have call successors, (0), 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 140 [2023-12-22 00:47:44,642 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 00:47:44,654 INFO L225 Difference]: With dead ends: 15524 [2023-12-22 00:47:44,654 INFO L226 Difference]: Without dead ends: 13966 [2023-12-22 00:47:44,656 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 301 GetRequests, 254 SyntacticMatches, 0 SemanticMatches, 47 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 438 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=321, Invalid=2031, Unknown=0, NotChecked=0, Total=2352 [2023-12-22 00:47:44,657 INFO L413 NwaCegarLoop]: 1565 mSDtfsCounter, 4888 mSDsluCounter, 23194 mSDsCounter, 0 mSdLazyCounter, 1607 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4888 SdHoareTripleChecker+Valid, 24759 SdHoareTripleChecker+Invalid, 1620 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 1607 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2023-12-22 00:47:44,657 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4888 Valid, 24759 Invalid, 1620 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 1607 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2023-12-22 00:47:44,665 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13966 states. [2023-12-22 00:47:45,425 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13966 to 13050. [2023-12-22 00:47:45,434 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13050 states, 13048 states have (on average 1.2401900674432864) internal successors, (16182), 13049 states have internal predecessors, (16182), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 00:47:45,452 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13050 states to 13050 states and 16182 transitions. [2023-12-22 00:47:45,453 INFO L78 Accepts]: Start accepts. Automaton has 13050 states and 16182 transitions. Word has length 140 [2023-12-22 00:47:45,454 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 00:47:45,454 INFO L495 AbstractCegarLoop]: Abstraction has 13050 states and 16182 transitions. [2023-12-22 00:47:45,454 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 10.153846153846153) internal successors, (264), 26 states have internal predecessors, (264), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 00:47:45,454 INFO L276 IsEmpty]: Start isEmpty. Operand 13050 states and 16182 transitions. [2023-12-22 00:47:45,457 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 141 [2023-12-22 00:47:45,457 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 00:47:45,457 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 00:47:45,463 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (31)] Forceful destruction successful, exit code 0 [2023-12-22 00:47:45,661 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 31 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 00:47:45,662 INFO L420 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 00:47:45,662 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 00:47:45,662 INFO L85 PathProgramCache]: Analyzing trace with hash 737575774, now seen corresponding path program 1 times [2023-12-22 00:47:45,663 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 00:47:45,663 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1639427595] [2023-12-22 00:47:45,663 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 00:47:45,663 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 00:47:45,663 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 00:47:45,664 INFO L229 MonitoredProcess]: Starting monitored process 32 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-22 00:47:45,665 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (32)] Waiting until timeout for monitored process [2023-12-22 00:47:45,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 00:47:45,780 INFO L262 TraceCheckSpWp]: Trace formula consists of 317 conjuncts, 14 conjunts are in the unsatisfiable core [2023-12-22 00:47:45,782 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 00:47:47,070 INFO L134 CoverageAnalysis]: Checked inductivity of 113 backedges. 40 proven. 73 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 00:47:47,071 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-22 00:47:47,598 INFO L134 CoverageAnalysis]: Checked inductivity of 113 backedges. 40 proven. 73 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 00:47:47,598 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 00:47:47,598 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1639427595] [2023-12-22 00:47:47,598 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1639427595] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-22 00:47:47,598 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-22 00:47:47,598 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 13] total 26 [2023-12-22 00:47:47,598 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [716524596] [2023-12-22 00:47:47,598 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-22 00:47:47,599 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2023-12-22 00:47:47,599 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 00:47:47,599 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2023-12-22 00:47:47,599 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=75, Invalid=575, Unknown=0, NotChecked=0, Total=650 [2023-12-22 00:47:47,600 INFO L87 Difference]: Start difference. First operand 13050 states and 16182 transitions. Second operand has 26 states, 26 states have (on average 9.961538461538462) internal successors, (259), 26 states have internal predecessors, (259), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 00:47:53,980 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 00:47:53,980 INFO L93 Difference]: Finished difference Result 22054 states and 27061 transitions. [2023-12-22 00:47:53,981 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 49 states. [2023-12-22 00:47:53,981 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 9.961538461538462) internal successors, (259), 26 states have internal predecessors, (259), 0 states have call successors, (0), 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 140 [2023-12-22 00:47:53,981 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 00:47:53,994 INFO L225 Difference]: With dead ends: 22054 [2023-12-22 00:47:53,994 INFO L226 Difference]: Without dead ends: 17684 [2023-12-22 00:47:53,997 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 322 GetRequests, 254 SyntacticMatches, 0 SemanticMatches, 68 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1013 ImplicationChecksByTransitivity, 3.5s TimeCoverageRelationStatistics Valid=863, Invalid=3967, Unknown=0, NotChecked=0, Total=4830 [2023-12-22 00:47:53,999 INFO L413 NwaCegarLoop]: 1651 mSDtfsCounter, 6459 mSDsluCounter, 23921 mSDsCounter, 0 mSdLazyCounter, 2425 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6459 SdHoareTripleChecker+Valid, 25572 SdHoareTripleChecker+Invalid, 2445 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 2425 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2023-12-22 00:47:53,999 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6459 Valid, 25572 Invalid, 2445 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [20 Valid, 2425 Invalid, 0 Unknown, 0 Unchecked, 2.4s Time] [2023-12-22 00:47:54,006 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17684 states. [2023-12-22 00:47:54,892 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17684 to 15413. [2023-12-22 00:47:54,901 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15413 states, 15411 states have (on average 1.2268509506196872) internal successors, (18907), 15412 states have internal predecessors, (18907), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 00:47:54,917 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15413 states to 15413 states and 18907 transitions. [2023-12-22 00:47:54,917 INFO L78 Accepts]: Start accepts. Automaton has 15413 states and 18907 transitions. Word has length 140 [2023-12-22 00:47:54,917 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 00:47:54,918 INFO L495 AbstractCegarLoop]: Abstraction has 15413 states and 18907 transitions. [2023-12-22 00:47:54,918 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 9.961538461538462) internal successors, (259), 26 states have internal predecessors, (259), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 00:47:54,918 INFO L276 IsEmpty]: Start isEmpty. Operand 15413 states and 18907 transitions. [2023-12-22 00:47:54,919 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 141 [2023-12-22 00:47:54,919 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 00:47:54,920 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 00:47:54,925 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 (32)] Ended with exit code 0 [2023-12-22 00:47:55,123 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 32 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 00:47:55,123 INFO L420 AbstractCegarLoop]: === Iteration 32 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 00:47:55,123 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 00:47:55,123 INFO L85 PathProgramCache]: Analyzing trace with hash -554154438, now seen corresponding path program 1 times [2023-12-22 00:47:55,124 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 00:47:55,124 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2006785184] [2023-12-22 00:47:55,124 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 00:47:55,124 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 00:47:55,124 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 00:47:55,125 INFO L229 MonitoredProcess]: Starting monitored process 33 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-22 00:47:55,127 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (33)] Waiting until timeout for monitored process [2023-12-22 00:47:55,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 00:47:55,224 INFO L262 TraceCheckSpWp]: Trace formula consists of 317 conjuncts, 14 conjunts are in the unsatisfiable core [2023-12-22 00:47:55,226 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 00:47:56,524 INFO L134 CoverageAnalysis]: Checked inductivity of 113 backedges. 49 proven. 64 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 00:47:56,524 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-22 00:47:57,031 INFO L134 CoverageAnalysis]: Checked inductivity of 113 backedges. 49 proven. 64 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 00:47:57,031 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 00:47:57,032 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2006785184] [2023-12-22 00:47:57,032 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2006785184] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-22 00:47:57,032 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-22 00:47:57,032 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 13] total 26 [2023-12-22 00:47:57,032 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1540111816] [2023-12-22 00:47:57,032 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-22 00:47:57,032 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2023-12-22 00:47:57,033 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 00:47:57,033 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2023-12-22 00:47:57,033 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=75, Invalid=575, Unknown=0, NotChecked=0, Total=650 [2023-12-22 00:47:57,033 INFO L87 Difference]: Start difference. First operand 15413 states and 18907 transitions. Second operand has 26 states, 26 states have (on average 9.76923076923077) internal successors, (254), 26 states have internal predecessors, (254), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 00:48:05,133 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 00:48:05,134 INFO L93 Difference]: Finished difference Result 40756 states and 48707 transitions. [2023-12-22 00:48:05,134 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 57 states. [2023-12-22 00:48:05,134 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 9.76923076923077) internal successors, (254), 26 states have internal predecessors, (254), 0 states have call successors, (0), 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 140 [2023-12-22 00:48:05,134 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 00:48:05,162 INFO L225 Difference]: With dead ends: 40756 [2023-12-22 00:48:05,162 INFO L226 Difference]: Without dead ends: 36292 [2023-12-22 00:48:05,168 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 330 GetRequests, 254 SyntacticMatches, 0 SemanticMatches, 76 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1355 ImplicationChecksByTransitivity, 3.8s TimeCoverageRelationStatistics Valid=1011, Invalid=4995, Unknown=0, NotChecked=0, Total=6006 [2023-12-22 00:48:05,169 INFO L413 NwaCegarLoop]: 1668 mSDtfsCounter, 5317 mSDsluCounter, 22621 mSDsCounter, 0 mSdLazyCounter, 2630 mSolverCounterSat, 23 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5317 SdHoareTripleChecker+Valid, 24289 SdHoareTripleChecker+Invalid, 2653 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 23 IncrementalHoareTripleChecker+Valid, 2630 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.7s IncrementalHoareTripleChecker+Time [2023-12-22 00:48:05,169 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5317 Valid, 24289 Invalid, 2653 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [23 Valid, 2630 Invalid, 0 Unknown, 0 Unchecked, 2.7s Time] [2023-12-22 00:48:05,183 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36292 states. [2023-12-22 00:48:07,029 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36292 to 27025. [2023-12-22 00:48:07,044 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 27025 states, 27023 states have (on average 1.2013470007031049) internal successors, (32464), 27024 states have internal predecessors, (32464), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 00:48:07,072 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27025 states to 27025 states and 32464 transitions. [2023-12-22 00:48:07,073 INFO L78 Accepts]: Start accepts. Automaton has 27025 states and 32464 transitions. Word has length 140 [2023-12-22 00:48:07,073 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 00:48:07,073 INFO L495 AbstractCegarLoop]: Abstraction has 27025 states and 32464 transitions. [2023-12-22 00:48:07,073 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 9.76923076923077) internal successors, (254), 26 states have internal predecessors, (254), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 00:48:07,073 INFO L276 IsEmpty]: Start isEmpty. Operand 27025 states and 32464 transitions. [2023-12-22 00:48:07,078 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 169 [2023-12-22 00:48:07,078 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 00:48:07,078 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 00:48:07,082 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (33)] Forceful destruction successful, exit code 0 [2023-12-22 00:48:07,281 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 33 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 00:48:07,282 INFO L420 AbstractCegarLoop]: === Iteration 33 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 00:48:07,282 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 00:48:07,282 INFO L85 PathProgramCache]: Analyzing trace with hash -986451549, now seen corresponding path program 1 times [2023-12-22 00:48:07,283 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 00:48:07,283 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1601504703] [2023-12-22 00:48:07,283 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 00:48:07,283 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 00:48:07,283 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 00:48:07,284 INFO L229 MonitoredProcess]: Starting monitored process 34 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-22 00:48:07,285 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (34)] Waiting until timeout for monitored process [2023-12-22 00:48:07,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 00:48:07,380 INFO L262 TraceCheckSpWp]: Trace formula consists of 249 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-22 00:48:07,393 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 00:48:07,550 INFO L134 CoverageAnalysis]: Checked inductivity of 56 backedges. 56 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 00:48:07,550 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 00:48:07,550 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 00:48:07,550 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1601504703] [2023-12-22 00:48:07,550 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1601504703] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 00:48:07,550 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 00:48:07,551 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-22 00:48:07,551 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1688587376] [2023-12-22 00:48:07,551 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 00:48:07,551 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-22 00:48:07,551 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 00:48:07,551 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-22 00:48:07,551 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-22 00:48:07,552 INFO L87 Difference]: Start difference. First operand 27025 states and 32464 transitions. Second operand has 3 states, 3 states have (on average 56.0) internal successors, (168), 2 states have internal predecessors, (168), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 00:48:42,254 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 00:48:42,255 INFO L93 Difference]: Finished difference Result 30031 states and 37391 transitions. [2023-12-22 00:48:42,266 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-22 00:48:42,266 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 56.0) internal successors, (168), 2 states have internal predecessors, (168), 0 states have call successors, (0), 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 168 [2023-12-22 00:48:42,266 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 00:48:42,291 INFO L225 Difference]: With dead ends: 30031 [2023-12-22 00:48:42,291 INFO L226 Difference]: Without dead ends: 28527 [2023-12-22 00:48:42,295 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 167 GetRequests, 166 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-22 00:48:42,296 INFO L413 NwaCegarLoop]: 467 mSDtfsCounter, 759 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 2575 mSolverCounterSat, 473 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 27.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 759 SdHoareTripleChecker+Valid, 474 SdHoareTripleChecker+Invalid, 3048 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 473 IncrementalHoareTripleChecker+Valid, 2575 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 32.9s IncrementalHoareTripleChecker+Time [2023-12-22 00:48:42,296 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [759 Valid, 474 Invalid, 3048 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [473 Valid, 2575 Invalid, 0 Unknown, 0 Unchecked, 32.9s Time] [2023-12-22 00:48:42,307 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28527 states. [2023-12-22 00:48:44,195 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28527 to 28527. [2023-12-22 00:48:44,213 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 28527 states, 28525 states have (on average 1.213777388255916) internal successors, (34623), 28526 states have internal predecessors, (34623), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 00:48:44,247 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28527 states to 28527 states and 34623 transitions. [2023-12-22 00:48:44,247 INFO L78 Accepts]: Start accepts. Automaton has 28527 states and 34623 transitions. Word has length 168 [2023-12-22 00:48:44,247 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 00:48:44,247 INFO L495 AbstractCegarLoop]: Abstraction has 28527 states and 34623 transitions. [2023-12-22 00:48:44,248 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 56.0) internal successors, (168), 2 states have internal predecessors, (168), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 00:48:44,248 INFO L276 IsEmpty]: Start isEmpty. Operand 28527 states and 34623 transitions. [2023-12-22 00:48:44,258 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 194 [2023-12-22 00:48:44,258 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 00:48:44,258 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 00:48:44,263 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (34)] Forceful destruction successful, exit code 0 [2023-12-22 00:48:44,464 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 34 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 00:48:44,464 INFO L420 AbstractCegarLoop]: === Iteration 34 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 00:48:44,464 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 00:48:44,464 INFO L85 PathProgramCache]: Analyzing trace with hash -1894073000, now seen corresponding path program 2 times [2023-12-22 00:48:44,465 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 00:48:44,465 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [314318137] [2023-12-22 00:48:44,465 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-12-22 00:48:44,465 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 00:48:44,465 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 00:48:44,467 INFO L229 MonitoredProcess]: Starting monitored process 35 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-22 00:48:44,467 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (35)] Waiting until timeout for monitored process [2023-12-22 00:48:44,552 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2023-12-22 00:48:44,552 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-12-22 00:48:44,554 INFO L262 TraceCheckSpWp]: Trace formula consists of 172 conjuncts, 6 conjunts are in the unsatisfiable core [2023-12-22 00:48:44,557 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 00:48:46,164 INFO L134 CoverageAnalysis]: Checked inductivity of 301 backedges. 22 proven. 0 refuted. 0 times theorem prover too weak. 279 trivial. 0 not checked. [2023-12-22 00:48:46,164 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 00:48:46,165 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 00:48:46,165 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [314318137] [2023-12-22 00:48:46,165 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [314318137] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 00:48:46,165 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 00:48:46,165 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-22 00:48:46,165 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2086563124] [2023-12-22 00:48:46,165 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 00:48:46,165 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-22 00:48:46,165 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 00:48:46,166 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-22 00:48:46,166 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2023-12-22 00:48:46,166 INFO L87 Difference]: Start difference. First operand 28527 states and 34623 transitions. Second operand has 7 states, 7 states have (on average 12.0) internal successors, (84), 7 states have internal predecessors, (84), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 00:48:48,261 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 00:48:48,261 INFO L93 Difference]: Finished difference Result 39175 states and 47803 transitions. [2023-12-22 00:48:48,263 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-12-22 00:48:48,263 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 12.0) internal successors, (84), 7 states have internal predecessors, (84), 0 states have call successors, (0), 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 193 [2023-12-22 00:48:48,263 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 00:48:48,296 INFO L225 Difference]: With dead ends: 39175 [2023-12-22 00:48:48,296 INFO L226 Difference]: Without dead ends: 33914 [2023-12-22 00:48:48,302 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 192 GetRequests, 187 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2023-12-22 00:48:48,302 INFO L413 NwaCegarLoop]: 1586 mSDtfsCounter, 4758 mSDsluCounter, 1746 mSDsCounter, 0 mSdLazyCounter, 64 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4758 SdHoareTripleChecker+Valid, 3332 SdHoareTripleChecker+Invalid, 69 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 64 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-22 00:48:48,302 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4758 Valid, 3332 Invalid, 69 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 64 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-22 00:48:48,321 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33914 states. [2023-12-22 00:48:50,598 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33914 to 28447. [2023-12-22 00:48:50,620 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 28447 states, 28445 states have (on average 1.2075232905607312) internal successors, (34348), 28446 states have internal predecessors, (34348), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 00:48:50,653 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28447 states to 28447 states and 34348 transitions. [2023-12-22 00:48:50,653 INFO L78 Accepts]: Start accepts. Automaton has 28447 states and 34348 transitions. Word has length 193 [2023-12-22 00:48:50,667 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 00:48:50,668 INFO L495 AbstractCegarLoop]: Abstraction has 28447 states and 34348 transitions. [2023-12-22 00:48:50,668 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 12.0) internal successors, (84), 7 states have internal predecessors, (84), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 00:48:50,668 INFO L276 IsEmpty]: Start isEmpty. Operand 28447 states and 34348 transitions. [2023-12-22 00:48:50,679 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 194 [2023-12-22 00:48:50,679 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 00:48:50,679 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 00:48:50,691 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (35)] Forceful destruction successful, exit code 0 [2023-12-22 00:48:50,882 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 35 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 00:48:50,883 INFO L420 AbstractCegarLoop]: === Iteration 35 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 00:48:50,883 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 00:48:50,883 INFO L85 PathProgramCache]: Analyzing trace with hash -1539367428, now seen corresponding path program 2 times [2023-12-22 00:48:50,883 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 00:48:50,884 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [219113328] [2023-12-22 00:48:50,884 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-12-22 00:48:50,884 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 00:48:50,884 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 00:48:50,885 INFO L229 MonitoredProcess]: Starting monitored process 36 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-22 00:48:50,915 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (36)] Waiting until timeout for monitored process [2023-12-22 00:48:50,957 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2023-12-22 00:48:50,957 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-12-22 00:48:50,959 INFO L262 TraceCheckSpWp]: Trace formula consists of 172 conjuncts, 6 conjunts are in the unsatisfiable core [2023-12-22 00:48:50,960 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 00:48:52,408 INFO L134 CoverageAnalysis]: Checked inductivity of 301 backedges. 38 proven. 0 refuted. 0 times theorem prover too weak. 263 trivial. 0 not checked. [2023-12-22 00:48:52,408 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 00:48:52,409 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 00:48:52,409 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [219113328] [2023-12-22 00:48:52,409 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [219113328] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 00:48:52,409 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 00:48:52,409 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-22 00:48:52,409 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2094905922] [2023-12-22 00:48:52,409 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 00:48:52,409 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-22 00:48:52,409 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 00:48:52,410 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-22 00:48:52,410 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2023-12-22 00:48:52,410 INFO L87 Difference]: Start difference. First operand 28447 states and 34348 transitions. Second operand has 7 states, 7 states have (on average 12.714285714285714) internal successors, (89), 7 states have internal predecessors, (89), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 00:48:54,527 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 00:48:54,527 INFO L93 Difference]: Finished difference Result 36802 states and 44787 transitions. [2023-12-22 00:48:54,528 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-12-22 00:48:54,528 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 12.714285714285714) internal successors, (89), 7 states have internal predecessors, (89), 0 states have call successors, (0), 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 193 [2023-12-22 00:48:54,529 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 00:48:54,554 INFO L225 Difference]: With dead ends: 36802 [2023-12-22 00:48:54,554 INFO L226 Difference]: Without dead ends: 34512 [2023-12-22 00:48:54,558 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 192 GetRequests, 187 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2023-12-22 00:48:54,558 INFO L413 NwaCegarLoop]: 1591 mSDtfsCounter, 3152 mSDsluCounter, 1799 mSDsCounter, 0 mSdLazyCounter, 75 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3152 SdHoareTripleChecker+Valid, 3390 SdHoareTripleChecker+Invalid, 79 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 75 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-22 00:48:54,559 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3152 Valid, 3390 Invalid, 79 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 75 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-22 00:48:54,572 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34512 states. [2023-12-22 00:48:56,524 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34512 to 30270. [2023-12-22 00:48:56,542 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 30270 states, 30268 states have (on average 1.203647416413374) internal successors, (36432), 30269 states have internal predecessors, (36432), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 00:48:56,577 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30270 states to 30270 states and 36432 transitions. [2023-12-22 00:48:56,577 INFO L78 Accepts]: Start accepts. Automaton has 30270 states and 36432 transitions. Word has length 193 [2023-12-22 00:48:56,577 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 00:48:56,577 INFO L495 AbstractCegarLoop]: Abstraction has 30270 states and 36432 transitions. [2023-12-22 00:48:56,577 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 12.714285714285714) internal successors, (89), 7 states have internal predecessors, (89), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 00:48:56,577 INFO L276 IsEmpty]: Start isEmpty. Operand 30270 states and 36432 transitions. [2023-12-22 00:48:56,587 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 194 [2023-12-22 00:48:56,588 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 00:48:56,588 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 00:48:56,592 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (36)] Forceful destruction successful, exit code 0 [2023-12-22 00:48:56,791 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 36 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 00:48:56,791 INFO L420 AbstractCegarLoop]: === Iteration 36 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 00:48:56,792 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 00:48:56,792 INFO L85 PathProgramCache]: Analyzing trace with hash 246514648, now seen corresponding path program 2 times [2023-12-22 00:48:56,792 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 00:48:56,792 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1749530186] [2023-12-22 00:48:56,792 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-12-22 00:48:56,792 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 00:48:56,792 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 00:48:56,793 INFO L229 MonitoredProcess]: Starting monitored process 37 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-22 00:48:56,795 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (37)] Waiting until timeout for monitored process [2023-12-22 00:48:56,872 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2023-12-22 00:48:56,873 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-12-22 00:48:56,874 INFO L262 TraceCheckSpWp]: Trace formula consists of 172 conjuncts, 6 conjunts are in the unsatisfiable core [2023-12-22 00:48:56,876 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 00:48:58,201 INFO L134 CoverageAnalysis]: Checked inductivity of 301 backedges. 54 proven. 0 refuted. 0 times theorem prover too weak. 247 trivial. 0 not checked. [2023-12-22 00:48:58,202 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 00:48:58,202 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 00:48:58,203 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1749530186] [2023-12-22 00:48:58,203 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1749530186] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 00:48:58,203 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 00:48:58,203 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-22 00:48:58,203 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1913852454] [2023-12-22 00:48:58,203 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 00:48:58,203 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-22 00:48:58,203 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 00:48:58,204 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-22 00:48:58,204 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2023-12-22 00:48:58,204 INFO L87 Difference]: Start difference. First operand 30270 states and 36432 transitions. Second operand has 7 states, 7 states have (on average 13.428571428571429) internal successors, (94), 7 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 00:49:00,507 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 00:49:00,507 INFO L93 Difference]: Finished difference Result 38966 states and 47289 transitions. [2023-12-22 00:49:00,508 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-12-22 00:49:00,508 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 13.428571428571429) internal successors, (94), 7 states have internal predecessors, (94), 0 states have call successors, (0), 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 193 [2023-12-22 00:49:00,508 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 00:49:00,537 INFO L225 Difference]: With dead ends: 38966 [2023-12-22 00:49:00,537 INFO L226 Difference]: Without dead ends: 35846 [2023-12-22 00:49:00,541 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 192 GetRequests, 187 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2023-12-22 00:49:00,542 INFO L413 NwaCegarLoop]: 1596 mSDtfsCounter, 3146 mSDsluCounter, 1803 mSDsCounter, 0 mSdLazyCounter, 78 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3146 SdHoareTripleChecker+Valid, 3399 SdHoareTripleChecker+Invalid, 82 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 78 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-22 00:49:00,542 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3146 Valid, 3399 Invalid, 82 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 78 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-22 00:49:00,556 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35846 states. [2023-12-22 00:49:02,634 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35846 to 32565. [2023-12-22 00:49:02,651 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 32565 states, 32563 states have (on average 1.1983846697171636) internal successors, (39023), 32564 states have internal predecessors, (39023), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 00:49:02,684 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32565 states to 32565 states and 39023 transitions. [2023-12-22 00:49:02,684 INFO L78 Accepts]: Start accepts. Automaton has 32565 states and 39023 transitions. Word has length 193 [2023-12-22 00:49:02,685 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 00:49:02,685 INFO L495 AbstractCegarLoop]: Abstraction has 32565 states and 39023 transitions. [2023-12-22 00:49:02,685 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 13.428571428571429) internal successors, (94), 7 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 00:49:02,685 INFO L276 IsEmpty]: Start isEmpty. Operand 32565 states and 39023 transitions. [2023-12-22 00:49:02,694 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 194 [2023-12-22 00:49:02,694 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 00:49:02,695 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 00:49:02,698 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (37)] Ended with exit code 0 [2023-12-22 00:49:02,897 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 37 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 00:49:02,897 INFO L420 AbstractCegarLoop]: === Iteration 37 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 00:49:02,898 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 00:49:02,898 INFO L85 PathProgramCache]: Analyzing trace with hash 744515452, now seen corresponding path program 2 times [2023-12-22 00:49:02,898 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 00:49:02,898 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2099148317] [2023-12-22 00:49:02,898 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-12-22 00:49:02,898 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 00:49:02,898 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 00:49:02,899 INFO L229 MonitoredProcess]: Starting monitored process 38 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-22 00:49:02,901 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (38)] Waiting until timeout for monitored process [2023-12-22 00:49:02,969 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2023-12-22 00:49:02,969 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-12-22 00:49:02,971 INFO L262 TraceCheckSpWp]: Trace formula consists of 172 conjuncts, 6 conjunts are in the unsatisfiable core [2023-12-22 00:49:02,987 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 00:49:04,341 INFO L134 CoverageAnalysis]: Checked inductivity of 301 backedges. 70 proven. 0 refuted. 0 times theorem prover too weak. 231 trivial. 0 not checked. [2023-12-22 00:49:04,341 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 00:49:04,341 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 00:49:04,341 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2099148317] [2023-12-22 00:49:04,341 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2099148317] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 00:49:04,342 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 00:49:04,342 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-22 00:49:04,342 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [353957857] [2023-12-22 00:49:04,342 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 00:49:04,343 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-22 00:49:04,344 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 00:49:04,344 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-22 00:49:04,344 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2023-12-22 00:49:04,344 INFO L87 Difference]: Start difference. First operand 32565 states and 39023 transitions. Second operand has 7 states, 7 states have (on average 14.142857142857142) internal successors, (99), 7 states have internal predecessors, (99), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 00:49:06,843 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 00:49:06,843 INFO L93 Difference]: Finished difference Result 41637 states and 50339 transitions. [2023-12-22 00:49:06,844 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-12-22 00:49:06,844 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 14.142857142857142) internal successors, (99), 7 states have internal predecessors, (99), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 193 [2023-12-22 00:49:06,844 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 00:49:06,875 INFO L225 Difference]: With dead ends: 41637 [2023-12-22 00:49:06,875 INFO L226 Difference]: Without dead ends: 38149 [2023-12-22 00:49:06,879 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 192 GetRequests, 187 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2023-12-22 00:49:06,880 INFO L413 NwaCegarLoop]: 1599 mSDtfsCounter, 1688 mSDsluCounter, 1909 mSDsCounter, 0 mSdLazyCounter, 117 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1688 SdHoareTripleChecker+Valid, 3508 SdHoareTripleChecker+Invalid, 120 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 117 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-22 00:49:06,880 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1688 Valid, 3508 Invalid, 120 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 117 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-22 00:49:06,894 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38149 states. [2023-12-22 00:49:09,249 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38149 to 35526. [2023-12-22 00:49:09,269 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 35526 states, 35524 states have (on average 1.1942067334759598) internal successors, (42423), 35525 states have internal predecessors, (42423), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 00:49:09,307 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35526 states to 35526 states and 42423 transitions. [2023-12-22 00:49:09,308 INFO L78 Accepts]: Start accepts. Automaton has 35526 states and 42423 transitions. Word has length 193 [2023-12-22 00:49:09,308 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 00:49:09,308 INFO L495 AbstractCegarLoop]: Abstraction has 35526 states and 42423 transitions. [2023-12-22 00:49:09,308 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 14.142857142857142) internal successors, (99), 7 states have internal predecessors, (99), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 00:49:09,308 INFO L276 IsEmpty]: Start isEmpty. Operand 35526 states and 42423 transitions. [2023-12-22 00:49:09,316 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 194 [2023-12-22 00:49:09,316 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 00:49:09,316 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 00:49:09,319 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 (38)] Ended with exit code 0 [2023-12-22 00:49:09,518 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 38 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 00:49:09,518 INFO L420 AbstractCegarLoop]: === Iteration 38 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 00:49:09,519 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 00:49:09,519 INFO L85 PathProgramCache]: Analyzing trace with hash -547214760, now seen corresponding path program 2 times [2023-12-22 00:49:09,519 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 00:49:09,519 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [849542723] [2023-12-22 00:49:09,519 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-12-22 00:49:09,519 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 00:49:09,519 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 00:49:09,520 INFO L229 MonitoredProcess]: Starting monitored process 39 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-22 00:49:09,522 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (39)] Waiting until timeout for monitored process [2023-12-22 00:49:09,586 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2023-12-22 00:49:09,587 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-12-22 00:49:09,588 INFO L262 TraceCheckSpWp]: Trace formula consists of 172 conjuncts, 6 conjunts are in the unsatisfiable core [2023-12-22 00:49:09,590 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 00:49:11,195 INFO L134 CoverageAnalysis]: Checked inductivity of 301 backedges. 86 proven. 0 refuted. 0 times theorem prover too weak. 215 trivial. 0 not checked. [2023-12-22 00:49:11,195 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 00:49:11,196 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 00:49:11,196 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [849542723] [2023-12-22 00:49:11,196 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [849542723] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 00:49:11,196 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 00:49:11,196 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-22 00:49:11,196 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1373623533] [2023-12-22 00:49:11,196 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 00:49:11,196 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-22 00:49:11,196 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 00:49:11,197 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-22 00:49:11,197 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2023-12-22 00:49:11,197 INFO L87 Difference]: Start difference. First operand 35526 states and 42423 transitions. Second operand has 7 states, 7 states have (on average 14.857142857142858) internal successors, (104), 7 states have internal predecessors, (104), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 00:49:13,628 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 00:49:13,628 INFO L93 Difference]: Finished difference Result 43601 states and 52501 transitions. [2023-12-22 00:49:13,629 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-12-22 00:49:13,629 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 14.857142857142858) internal successors, (104), 7 states have internal predecessors, (104), 0 states have call successors, (0), 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 193 [2023-12-22 00:49:13,630 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 00:49:13,667 INFO L225 Difference]: With dead ends: 43601 [2023-12-22 00:49:13,667 INFO L226 Difference]: Without dead ends: 40891 [2023-12-22 00:49:13,673 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 192 GetRequests, 187 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2023-12-22 00:49:13,674 INFO L413 NwaCegarLoop]: 1591 mSDtfsCounter, 3179 mSDsluCounter, 1768 mSDsCounter, 0 mSdLazyCounter, 78 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3179 SdHoareTripleChecker+Valid, 3359 SdHoareTripleChecker+Invalid, 82 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 78 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-22 00:49:13,674 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3179 Valid, 3359 Invalid, 82 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 78 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-22 00:49:13,690 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 40891 states. [2023-12-22 00:49:16,268 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 40891 to 38106. [2023-12-22 00:49:16,289 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 38106 states, 38104 states have (on average 1.1918696199874028) internal successors, (45415), 38105 states have internal predecessors, (45415), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 00:49:16,333 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38106 states to 38106 states and 45415 transitions. [2023-12-22 00:49:16,333 INFO L78 Accepts]: Start accepts. Automaton has 38106 states and 45415 transitions. Word has length 193 [2023-12-22 00:49:16,333 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 00:49:16,333 INFO L495 AbstractCegarLoop]: Abstraction has 38106 states and 45415 transitions. [2023-12-22 00:49:16,333 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 14.857142857142858) internal successors, (104), 7 states have internal predecessors, (104), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 00:49:16,333 INFO L276 IsEmpty]: Start isEmpty. Operand 38106 states and 45415 transitions. [2023-12-22 00:49:16,343 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 195 [2023-12-22 00:49:16,343 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 00:49:16,343 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 00:49:16,348 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 (39)] Forceful destruction successful, exit code 0 [2023-12-22 00:49:16,546 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 39 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 00:49:16,546 INFO L420 AbstractCegarLoop]: === Iteration 39 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 00:49:16,546 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 00:49:16,546 INFO L85 PathProgramCache]: Analyzing trace with hash 807520159, now seen corresponding path program 1 times [2023-12-22 00:49:16,547 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 00:49:16,547 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [77562277] [2023-12-22 00:49:16,547 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 00:49:16,547 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 00:49:16,547 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 00:49:16,548 INFO L229 MonitoredProcess]: Starting monitored process 40 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-22 00:49:16,549 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (40)] Waiting until timeout for monitored process [2023-12-22 00:49:16,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 00:49:16,692 INFO L262 TraceCheckSpWp]: Trace formula consists of 422 conjuncts, 19 conjunts are in the unsatisfiable core [2023-12-22 00:49:16,695 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 00:49:18,888 INFO L134 CoverageAnalysis]: Checked inductivity of 301 backedges. 38 proven. 263 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 00:49:18,889 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-22 00:49:19,619 INFO L134 CoverageAnalysis]: Checked inductivity of 301 backedges. 38 proven. 263 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 00:49:19,619 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 00:49:19,619 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [77562277] [2023-12-22 00:49:19,619 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [77562277] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-22 00:49:19,619 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-22 00:49:19,619 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [19, 18] total 36 [2023-12-22 00:49:19,619 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2120423691] [2023-12-22 00:49:19,619 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-22 00:49:19,620 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 36 states [2023-12-22 00:49:19,620 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 00:49:19,620 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 36 interpolants. [2023-12-22 00:49:19,621 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=108, Invalid=1152, Unknown=0, NotChecked=0, Total=1260 [2023-12-22 00:49:19,621 INFO L87 Difference]: Start difference. First operand 38106 states and 45415 transitions. Second operand has 36 states, 36 states have (on average 10.444444444444445) internal successors, (376), 36 states have internal predecessors, (376), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 00:49:30,925 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 00:49:30,926 INFO L93 Difference]: Finished difference Result 49689 states and 59017 transitions. [2023-12-22 00:49:30,926 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 61 states. [2023-12-22 00:49:30,926 INFO L78 Accepts]: Start accepts. Automaton has has 36 states, 36 states have (on average 10.444444444444445) internal successors, (376), 36 states have internal predecessors, (376), 0 states have call successors, (0), 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 [2023-12-22 00:49:30,926 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 00:49:30,961 INFO L225 Difference]: With dead ends: 49689 [2023-12-22 00:49:30,962 INFO L226 Difference]: Without dead ends: 45368 [2023-12-22 00:49:30,969 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 442 GetRequests, 352 SyntacticMatches, 0 SemanticMatches, 90 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1854 ImplicationChecksByTransitivity, 4.8s TimeCoverageRelationStatistics Valid=960, Invalid=7412, Unknown=0, NotChecked=0, Total=8372 [2023-12-22 00:49:30,970 INFO L413 NwaCegarLoop]: 1658 mSDtfsCounter, 6540 mSDsluCounter, 37396 mSDsCounter, 0 mSdLazyCounter, 4828 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6540 SdHoareTripleChecker+Valid, 39054 SdHoareTripleChecker+Invalid, 4846 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 4828 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.5s IncrementalHoareTripleChecker+Time [2023-12-22 00:49:30,970 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6540 Valid, 39054 Invalid, 4846 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [18 Valid, 4828 Invalid, 0 Unknown, 0 Unchecked, 4.5s Time] [2023-12-22 00:49:30,991 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45368 states. [2023-12-22 00:49:32,878 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45368 to 24812. [2023-12-22 00:49:32,888 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24812 states, 24810 states have (on average 1.2087867795243854) internal successors, (29990), 24811 states have internal predecessors, (29990), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 00:49:32,912 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24812 states to 24812 states and 29990 transitions. [2023-12-22 00:49:32,913 INFO L78 Accepts]: Start accepts. Automaton has 24812 states and 29990 transitions. Word has length 194 [2023-12-22 00:49:32,913 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 00:49:32,913 INFO L495 AbstractCegarLoop]: Abstraction has 24812 states and 29990 transitions. [2023-12-22 00:49:32,913 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 36 states, 36 states have (on average 10.444444444444445) internal successors, (376), 36 states have internal predecessors, (376), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 00:49:32,913 INFO L276 IsEmpty]: Start isEmpty. Operand 24812 states and 29990 transitions. [2023-12-22 00:49:32,917 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 195 [2023-12-22 00:49:32,917 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 00:49:32,917 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 00:49:32,921 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (40)] Ended with exit code 0 [2023-12-22 00:49:33,121 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 40 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 00:49:33,121 INFO L420 AbstractCegarLoop]: === Iteration 40 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 00:49:33,122 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 00:49:33,122 INFO L85 PathProgramCache]: Analyzing trace with hash 335289667, now seen corresponding path program 1 times [2023-12-22 00:49:33,122 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 00:49:33,122 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2036335634] [2023-12-22 00:49:33,122 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 00:49:33,122 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 00:49:33,122 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 00:49:33,123 INFO L229 MonitoredProcess]: Starting monitored process 41 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-22 00:49:33,125 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (41)] Waiting until timeout for monitored process [2023-12-22 00:49:33,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 00:49:33,261 INFO L262 TraceCheckSpWp]: Trace formula consists of 422 conjuncts, 19 conjunts are in the unsatisfiable core [2023-12-22 00:49:33,263 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 00:49:35,105 INFO L134 CoverageAnalysis]: Checked inductivity of 301 backedges. 54 proven. 247 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 00:49:35,105 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-22 00:49:36,076 INFO L134 CoverageAnalysis]: Checked inductivity of 301 backedges. 54 proven. 247 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 00:49:36,076 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 00:49:36,076 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2036335634] [2023-12-22 00:49:36,077 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2036335634] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-22 00:49:36,077 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-22 00:49:36,077 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [19, 18] total 36 [2023-12-22 00:49:36,077 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1341894301] [2023-12-22 00:49:36,077 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-22 00:49:36,077 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 36 states [2023-12-22 00:49:36,077 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 00:49:36,078 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 36 interpolants. [2023-12-22 00:49:36,078 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=108, Invalid=1152, Unknown=0, NotChecked=0, Total=1260 [2023-12-22 00:49:36,078 INFO L87 Difference]: Start difference. First operand 24812 states and 29990 transitions. Second operand has 36 states, 36 states have (on average 10.305555555555555) internal successors, (371), 36 states have internal predecessors, (371), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 00:49:56,757 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 00:49:56,758 INFO L93 Difference]: Finished difference Result 37668 states and 45111 transitions. [2023-12-22 00:49:56,758 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 100 states. [2023-12-22 00:49:56,758 INFO L78 Accepts]: Start accepts. Automaton has has 36 states, 36 states have (on average 10.305555555555555) internal successors, (371), 36 states have internal predecessors, (371), 0 states have call successors, (0), 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 [2023-12-22 00:49:56,758 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 00:49:56,788 INFO L225 Difference]: With dead ends: 37668 [2023-12-22 00:49:56,788 INFO L226 Difference]: Without dead ends: 32076 [2023-12-22 00:49:56,796 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 481 GetRequests, 352 SyntacticMatches, 0 SemanticMatches, 129 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4426 ImplicationChecksByTransitivity, 11.6s TimeCoverageRelationStatistics Valid=2311, Invalid=14719, Unknown=0, NotChecked=0, Total=17030 [2023-12-22 00:49:56,797 INFO L413 NwaCegarLoop]: 1751 mSDtfsCounter, 4311 mSDsluCounter, 38586 mSDsCounter, 0 mSdLazyCounter, 6511 mSolverCounterSat, 29 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4311 SdHoareTripleChecker+Valid, 40337 SdHoareTripleChecker+Invalid, 6540 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 29 IncrementalHoareTripleChecker+Valid, 6511 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.5s IncrementalHoareTripleChecker+Time [2023-12-22 00:49:56,799 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4311 Valid, 40337 Invalid, 6540 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [29 Valid, 6511 Invalid, 0 Unknown, 0 Unchecked, 7.5s Time] [2023-12-22 00:49:56,814 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32076 states. [2023-12-22 00:49:58,901 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32076 to 27542. [2023-12-22 00:49:58,916 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 27542 states, 27540 states have (on average 1.2053376906318083) internal successors, (33195), 27541 states have internal predecessors, (33195), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 00:49:58,946 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27542 states to 27542 states and 33195 transitions. [2023-12-22 00:49:58,947 INFO L78 Accepts]: Start accepts. Automaton has 27542 states and 33195 transitions. Word has length 194 [2023-12-22 00:49:58,947 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 00:49:58,947 INFO L495 AbstractCegarLoop]: Abstraction has 27542 states and 33195 transitions. [2023-12-22 00:49:58,947 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 36 states, 36 states have (on average 10.305555555555555) internal successors, (371), 36 states have internal predecessors, (371), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 00:49:58,947 INFO L276 IsEmpty]: Start isEmpty. Operand 27542 states and 33195 transitions. [2023-12-22 00:49:58,952 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 195 [2023-12-22 00:49:58,952 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 00:49:58,952 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 00:49:58,956 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (41)] Ended with exit code 0 [2023-12-22 00:49:59,155 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 41 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 00:49:59,155 INFO L420 AbstractCegarLoop]: === Iteration 41 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 00:49:59,155 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 00:49:59,156 INFO L85 PathProgramCache]: Analyzing trace with hash -1406554593, now seen corresponding path program 1 times [2023-12-22 00:49:59,156 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 00:49:59,156 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1194321305] [2023-12-22 00:49:59,156 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 00:49:59,156 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 00:49:59,156 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 00:49:59,157 INFO L229 MonitoredProcess]: Starting monitored process 42 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-22 00:49:59,158 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (42)] Waiting until timeout for monitored process [2023-12-22 00:49:59,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 00:49:59,294 INFO L262 TraceCheckSpWp]: Trace formula consists of 422 conjuncts, 19 conjunts are in the unsatisfiable core [2023-12-22 00:49:59,296 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 00:50:01,287 INFO L134 CoverageAnalysis]: Checked inductivity of 301 backedges. 70 proven. 231 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 00:50:01,287 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-22 00:50:02,325 INFO L134 CoverageAnalysis]: Checked inductivity of 301 backedges. 70 proven. 231 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 00:50:02,326 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 00:50:02,326 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1194321305] [2023-12-22 00:50:02,326 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1194321305] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-22 00:50:02,326 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-22 00:50:02,326 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [19, 18] total 36 [2023-12-22 00:50:02,326 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [699020853] [2023-12-22 00:50:02,327 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-22 00:50:02,327 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 36 states [2023-12-22 00:50:02,327 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 00:50:02,327 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 36 interpolants. [2023-12-22 00:50:02,328 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=108, Invalid=1152, Unknown=0, NotChecked=0, Total=1260 [2023-12-22 00:50:02,328 INFO L87 Difference]: Start difference. First operand 27542 states and 33195 transitions. Second operand has 36 states, 36 states have (on average 10.166666666666666) internal successors, (366), 36 states have internal predecessors, (366), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 00:50:24,182 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 00:50:24,182 INFO L93 Difference]: Finished difference Result 40535 states and 48336 transitions. [2023-12-22 00:50:24,183 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 112 states. [2023-12-22 00:50:24,183 INFO L78 Accepts]: Start accepts. Automaton has has 36 states, 36 states have (on average 10.166666666666666) internal successors, (366), 36 states have internal predecessors, (366), 0 states have call successors, (0), 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 [2023-12-22 00:50:24,183 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 00:50:24,215 INFO L225 Difference]: With dead ends: 40535 [2023-12-22 00:50:24,215 INFO L226 Difference]: Without dead ends: 33897 [2023-12-22 00:50:24,222 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 493 GetRequests, 352 SyntacticMatches, 0 SemanticMatches, 141 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5609 ImplicationChecksByTransitivity, 12.8s TimeCoverageRelationStatistics Valid=2694, Invalid=17612, Unknown=0, NotChecked=0, Total=20306 [2023-12-22 00:50:24,223 INFO L413 NwaCegarLoop]: 1776 mSDtfsCounter, 4088 mSDsluCounter, 37235 mSDsCounter, 0 mSdLazyCounter, 6805 mSolverCounterSat, 33 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4088 SdHoareTripleChecker+Valid, 39011 SdHoareTripleChecker+Invalid, 6838 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 33 IncrementalHoareTripleChecker+Valid, 6805 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.2s IncrementalHoareTripleChecker+Time [2023-12-22 00:50:24,223 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4088 Valid, 39011 Invalid, 6838 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [33 Valid, 6805 Invalid, 0 Unknown, 0 Unchecked, 7.2s Time] [2023-12-22 00:50:24,239 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33897 states. [2023-12-22 00:50:26,461 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33897 to 28020. [2023-12-22 00:50:26,476 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 28020 states, 28018 states have (on average 1.2016917695767007) internal successors, (33669), 28019 states have internal predecessors, (33669), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 00:50:26,505 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28020 states to 28020 states and 33669 transitions. [2023-12-22 00:50:26,506 INFO L78 Accepts]: Start accepts. Automaton has 28020 states and 33669 transitions. Word has length 194 [2023-12-22 00:50:26,506 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 00:50:26,506 INFO L495 AbstractCegarLoop]: Abstraction has 28020 states and 33669 transitions. [2023-12-22 00:50:26,506 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 36 states, 36 states have (on average 10.166666666666666) internal successors, (366), 36 states have internal predecessors, (366), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 00:50:26,506 INFO L276 IsEmpty]: Start isEmpty. Operand 28020 states and 33669 transitions. [2023-12-22 00:50:26,510 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 195 [2023-12-22 00:50:26,510 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 00:50:26,510 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 00:50:26,514 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 (42)] Ended with exit code 0 [2023-12-22 00:50:26,713 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 42 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 00:50:26,714 INFO L420 AbstractCegarLoop]: === Iteration 42 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 00:50:26,714 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 00:50:26,714 INFO L85 PathProgramCache]: Analyzing trace with hash 1499481795, now seen corresponding path program 1 times [2023-12-22 00:50:26,715 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 00:50:26,715 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [891607842] [2023-12-22 00:50:26,715 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 00:50:26,715 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 00:50:26,715 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 00:50:26,716 INFO L229 MonitoredProcess]: Starting monitored process 43 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-22 00:50:26,718 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (43)] Waiting until timeout for monitored process [2023-12-22 00:50:26,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 00:50:26,854 INFO L262 TraceCheckSpWp]: Trace formula consists of 422 conjuncts, 19 conjunts are in the unsatisfiable core [2023-12-22 00:50:26,856 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 00:50:28,919 INFO L134 CoverageAnalysis]: Checked inductivity of 301 backedges. 86 proven. 215 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 00:50:28,919 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-22 00:50:29,864 INFO L134 CoverageAnalysis]: Checked inductivity of 301 backedges. 86 proven. 215 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 00:50:29,865 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 00:50:29,865 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [891607842] [2023-12-22 00:50:29,865 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [891607842] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-22 00:50:29,865 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-22 00:50:29,865 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [19, 18] total 36 [2023-12-22 00:50:29,866 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [550274638] [2023-12-22 00:50:29,866 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-22 00:50:29,866 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 36 states [2023-12-22 00:50:29,866 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 00:50:29,866 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 36 interpolants. [2023-12-22 00:50:29,867 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=108, Invalid=1152, Unknown=0, NotChecked=0, Total=1260 [2023-12-22 00:50:29,867 INFO L87 Difference]: Start difference. First operand 28020 states and 33669 transitions. Second operand has 36 states, 36 states have (on average 10.027777777777779) internal successors, (361), 36 states have internal predecessors, (361), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 00:50:54,890 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 00:50:54,890 INFO L93 Difference]: Finished difference Result 40860 states and 48639 transitions. [2023-12-22 00:50:54,891 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 126 states. [2023-12-22 00:50:54,891 INFO L78 Accepts]: Start accepts. Automaton has has 36 states, 36 states have (on average 10.027777777777779) internal successors, (361), 36 states have internal predecessors, (361), 0 states have call successors, (0), 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 [2023-12-22 00:50:54,891 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 00:50:54,918 INFO L225 Difference]: With dead ends: 40860 [2023-12-22 00:50:54,918 INFO L226 Difference]: Without dead ends: 34184 [2023-12-22 00:50:54,927 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 507 GetRequests, 352 SyntacticMatches, 0 SemanticMatches, 155 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6979 ImplicationChecksByTransitivity, 13.9s TimeCoverageRelationStatistics Valid=3125, Invalid=21367, Unknown=0, NotChecked=0, Total=24492 [2023-12-22 00:50:54,927 INFO L413 NwaCegarLoop]: 1793 mSDtfsCounter, 3863 mSDsluCounter, 41189 mSDsCounter, 0 mSdLazyCounter, 8351 mSolverCounterSat, 27 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3863 SdHoareTripleChecker+Valid, 42982 SdHoareTripleChecker+Invalid, 8378 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 27 IncrementalHoareTripleChecker+Valid, 8351 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9.2s IncrementalHoareTripleChecker+Time [2023-12-22 00:50:54,928 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3863 Valid, 42982 Invalid, 8378 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [27 Valid, 8351 Invalid, 0 Unknown, 0 Unchecked, 9.2s Time] [2023-12-22 00:50:54,945 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34184 states. [2023-12-22 00:50:57,261 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34184 to 27582. [2023-12-22 00:50:57,277 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 27582 states, 27580 states have (on average 1.1990210297316897) internal successors, (33069), 27581 states have internal predecessors, (33069), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 00:50:57,307 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27582 states to 27582 states and 33069 transitions. [2023-12-22 00:50:57,307 INFO L78 Accepts]: Start accepts. Automaton has 27582 states and 33069 transitions. Word has length 194 [2023-12-22 00:50:57,307 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 00:50:57,307 INFO L495 AbstractCegarLoop]: Abstraction has 27582 states and 33069 transitions. [2023-12-22 00:50:57,308 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 36 states, 36 states have (on average 10.027777777777779) internal successors, (361), 36 states have internal predecessors, (361), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 00:50:57,308 INFO L276 IsEmpty]: Start isEmpty. Operand 27582 states and 33069 transitions. [2023-12-22 00:50:57,326 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 196 [2023-12-22 00:50:57,326 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 00:50:57,326 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 00:50:57,332 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (43)] Forceful destruction successful, exit code 0 [2023-12-22 00:50:57,527 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 43 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 00:50:57,527 INFO L420 AbstractCegarLoop]: === Iteration 43 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 00:50:57,527 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 00:50:57,528 INFO L85 PathProgramCache]: Analyzing trace with hash 717453312, now seen corresponding path program 1 times [2023-12-22 00:50:57,528 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 00:50:57,528 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1315626502] [2023-12-22 00:50:57,528 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 00:50:57,528 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 00:50:57,528 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 00:50:57,531 INFO L229 MonitoredProcess]: Starting monitored process 44 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-22 00:50:57,534 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (44)] Waiting until timeout for monitored process [2023-12-22 00:50:57,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 00:50:57,689 INFO L262 TraceCheckSpWp]: Trace formula consists of 423 conjuncts, 19 conjunts are in the unsatisfiable core [2023-12-22 00:50:57,691 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 00:51:00,478 INFO L134 CoverageAnalysis]: Checked inductivity of 311 backedges. 32 proven. 279 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 00:51:00,479 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-22 00:51:01,377 INFO L134 CoverageAnalysis]: Checked inductivity of 311 backedges. 32 proven. 279 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 00:51:01,377 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 00:51:01,377 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1315626502] [2023-12-22 00:51:01,378 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1315626502] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-22 00:51:01,378 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-22 00:51:01,378 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [19, 18] total 36 [2023-12-22 00:51:01,378 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1088218919] [2023-12-22 00:51:01,378 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-22 00:51:01,378 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 36 states [2023-12-22 00:51:01,378 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 00:51:01,379 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 36 interpolants. [2023-12-22 00:51:01,379 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=108, Invalid=1152, Unknown=0, NotChecked=0, Total=1260 [2023-12-22 00:51:01,379 INFO L87 Difference]: Start difference. First operand 27582 states and 33069 transitions. Second operand has 36 states, 36 states have (on average 10.61111111111111) internal successors, (382), 36 states have internal predecessors, (382), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 00:51:21,198 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 00:51:21,198 INFO L93 Difference]: Finished difference Result 59441 states and 69884 transitions. [2023-12-22 00:51:21,198 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 97 states. [2023-12-22 00:51:21,199 INFO L78 Accepts]: Start accepts. Automaton has has 36 states, 36 states have (on average 10.61111111111111) internal successors, (382), 36 states have internal predecessors, (382), 0 states have call successors, (0), 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 195 [2023-12-22 00:51:21,199 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 00:51:21,247 INFO L225 Difference]: With dead ends: 59441 [2023-12-22 00:51:21,247 INFO L226 Difference]: Without dead ends: 55011 [2023-12-22 00:51:21,263 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 480 GetRequests, 354 SyntacticMatches, 0 SemanticMatches, 126 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4172 ImplicationChecksByTransitivity, 9.8s TimeCoverageRelationStatistics Valid=2091, Invalid=14165, Unknown=0, NotChecked=0, Total=16256 [2023-12-22 00:51:21,267 INFO L413 NwaCegarLoop]: 1738 mSDtfsCounter, 2194 mSDsluCounter, 36829 mSDsCounter, 0 mSdLazyCounter, 6359 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2194 SdHoareTripleChecker+Valid, 38567 SdHoareTripleChecker+Invalid, 6378 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 6359 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.4s IncrementalHoareTripleChecker+Time [2023-12-22 00:51:21,268 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2194 Valid, 38567 Invalid, 6378 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [19 Valid, 6359 Invalid, 0 Unknown, 0 Unchecked, 6.4s Time] [2023-12-22 00:51:21,294 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 55011 states. [2023-12-22 00:51:25,804 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 55011 to 49940. [2023-12-22 00:51:25,830 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 49940 states, 49938 states have (on average 1.1789619127718372) internal successors, (58875), 49939 states have internal predecessors, (58875), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 00:51:25,884 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49940 states to 49940 states and 58875 transitions. [2023-12-22 00:51:25,885 INFO L78 Accepts]: Start accepts. Automaton has 49940 states and 58875 transitions. Word has length 195 [2023-12-22 00:51:25,885 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 00:51:25,886 INFO L495 AbstractCegarLoop]: Abstraction has 49940 states and 58875 transitions. [2023-12-22 00:51:25,886 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 36 states, 36 states have (on average 10.61111111111111) internal successors, (382), 36 states have internal predecessors, (382), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 00:51:25,886 INFO L276 IsEmpty]: Start isEmpty. Operand 49940 states and 58875 transitions. [2023-12-22 00:51:25,903 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 248 [2023-12-22 00:51:25,903 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 00:51:25,905 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 00:51:25,908 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (44)] Forceful destruction successful, exit code 0 [2023-12-22 00:51:26,107 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 44 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 00:51:26,107 INFO L420 AbstractCegarLoop]: === Iteration 44 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 00:51:26,108 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 00:51:26,108 INFO L85 PathProgramCache]: Analyzing trace with hash 463120701, now seen corresponding path program 2 times [2023-12-22 00:51:26,108 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 00:51:26,108 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1294248159] [2023-12-22 00:51:26,108 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-12-22 00:51:26,108 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 00:51:26,108 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 00:51:26,109 INFO L229 MonitoredProcess]: Starting monitored process 45 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-22 00:51:26,111 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (45)] Waiting until timeout for monitored process [2023-12-22 00:51:26,300 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-12-22 00:51:26,300 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-12-22 00:51:26,305 INFO L262 TraceCheckSpWp]: Trace formula consists of 526 conjuncts, 24 conjunts are in the unsatisfiable core [2023-12-22 00:51:26,308 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 00:51:29,452 INFO L134 CoverageAnalysis]: Checked inductivity of 578 backedges. 54 proven. 524 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 00:51:29,452 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-22 00:51:30,868 INFO L134 CoverageAnalysis]: Checked inductivity of 578 backedges. 54 proven. 524 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 00:51:30,868 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 00:51:30,868 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1294248159] [2023-12-22 00:51:30,868 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1294248159] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-22 00:51:30,869 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-22 00:51:30,869 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [24, 23] total 46 [2023-12-22 00:51:30,869 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1232366143] [2023-12-22 00:51:30,869 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-22 00:51:30,869 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 46 states [2023-12-22 00:51:30,869 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 00:51:30,870 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 46 interpolants. [2023-12-22 00:51:30,870 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=141, Invalid=1929, Unknown=0, NotChecked=0, Total=2070 [2023-12-22 00:51:30,870 INFO L87 Difference]: Start difference. First operand 49940 states and 58875 transitions. Second operand has 46 states, 46 states have (on average 10.478260869565217) internal successors, (482), 46 states have internal predecessors, (482), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 00:52:19,107 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 00:52:19,107 INFO L93 Difference]: Finished difference Result 62794 states and 73837 transitions. [2023-12-22 00:52:19,108 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 174 states. [2023-12-22 00:52:19,108 INFO L78 Accepts]: Start accepts. Automaton has has 46 states, 46 states have (on average 10.478260869565217) internal successors, (482), 46 states have internal predecessors, (482), 0 states have call successors, (0), 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 247 [2023-12-22 00:52:19,124 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 00:52:19,190 INFO L225 Difference]: With dead ends: 62794 [2023-12-22 00:52:19,191 INFO L226 Difference]: Without dead ends: 57496 [2023-12-22 00:52:19,202 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 661 GetRequests, 448 SyntacticMatches, 0 SemanticMatches, 213 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13712 ImplicationChecksByTransitivity, 28.2s TimeCoverageRelationStatistics Valid=5081, Invalid=40929, Unknown=0, NotChecked=0, Total=46010 [2023-12-22 00:52:19,204 INFO L413 NwaCegarLoop]: 1853 mSDtfsCounter, 2839 mSDsluCounter, 53289 mSDsCounter, 0 mSdLazyCounter, 13739 mSolverCounterSat, 31 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 14.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2839 SdHoareTripleChecker+Valid, 55142 SdHoareTripleChecker+Invalid, 13770 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 31 IncrementalHoareTripleChecker+Valid, 13739 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 15.9s IncrementalHoareTripleChecker+Time [2023-12-22 00:52:19,204 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2839 Valid, 55142 Invalid, 13770 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [31 Valid, 13739 Invalid, 0 Unknown, 0 Unchecked, 15.9s Time] [2023-12-22 00:52:19,238 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 57496 states. [2023-12-22 00:52:22,768 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 57496 to 32724. [2023-12-22 00:52:22,782 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 32724 states, 32722 states have (on average 1.1906973901350772) internal successors, (38962), 32723 states have internal predecessors, (38962), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 00:52:22,812 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32724 states to 32724 states and 38962 transitions. [2023-12-22 00:52:22,812 INFO L78 Accepts]: Start accepts. Automaton has 32724 states and 38962 transitions. Word has length 247 [2023-12-22 00:52:22,812 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 00:52:22,812 INFO L495 AbstractCegarLoop]: Abstraction has 32724 states and 38962 transitions. [2023-12-22 00:52:22,812 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 46 states, 46 states have (on average 10.478260869565217) internal successors, (482), 46 states have internal predecessors, (482), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 00:52:22,812 INFO L276 IsEmpty]: Start isEmpty. Operand 32724 states and 38962 transitions. [2023-12-22 00:52:22,830 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 248 [2023-12-22 00:52:22,830 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 00:52:22,830 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 00:52:22,835 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (45)] Forceful destruction successful, exit code 0 [2023-12-22 00:52:23,033 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 45 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 00:52:23,034 INFO L420 AbstractCegarLoop]: === Iteration 45 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 00:52:23,034 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 00:52:23,034 INFO L85 PathProgramCache]: Analyzing trace with hash -9109791, now seen corresponding path program 2 times [2023-12-22 00:52:23,035 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 00:52:23,035 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [849029001] [2023-12-22 00:52:23,035 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-12-22 00:52:23,035 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 00:52:23,035 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 00:52:23,043 INFO L229 MonitoredProcess]: Starting monitored process 46 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-22 00:52:23,044 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (46)] Waiting until timeout for monitored process [2023-12-22 00:52:23,230 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-12-22 00:52:23,230 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-12-22 00:52:23,237 INFO L262 TraceCheckSpWp]: Trace formula consists of 526 conjuncts, 24 conjunts are in the unsatisfiable core [2023-12-22 00:52:23,240 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 00:52:26,493 INFO L134 CoverageAnalysis]: Checked inductivity of 578 backedges. 77 proven. 501 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 00:52:26,493 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-22 00:52:27,911 INFO L134 CoverageAnalysis]: Checked inductivity of 578 backedges. 77 proven. 501 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 00:52:27,911 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 00:52:27,911 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [849029001] [2023-12-22 00:52:27,911 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [849029001] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-22 00:52:27,911 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-22 00:52:27,911 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [24, 23] total 46 [2023-12-22 00:52:27,911 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [302324571] [2023-12-22 00:52:27,911 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-22 00:52:27,912 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 46 states [2023-12-22 00:52:27,912 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 00:52:27,912 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 46 interpolants. [2023-12-22 00:52:27,913 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=141, Invalid=1929, Unknown=0, NotChecked=0, Total=2070 [2023-12-22 00:52:27,913 INFO L87 Difference]: Start difference. First operand 32724 states and 38962 transitions. Second operand has 46 states, 46 states have (on average 10.369565217391305) internal successors, (477), 46 states have internal predecessors, (477), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 00:53:19,491 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 00:53:19,491 INFO L93 Difference]: Finished difference Result 46773 states and 55377 transitions. [2023-12-22 00:53:19,492 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 192 states. [2023-12-22 00:53:19,492 INFO L78 Accepts]: Start accepts. Automaton has has 46 states, 46 states have (on average 10.369565217391305) internal successors, (477), 46 states have internal predecessors, (477), 0 states have call successors, (0), 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 247 [2023-12-22 00:53:19,492 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 00:53:19,526 INFO L225 Difference]: With dead ends: 46773 [2023-12-22 00:53:19,527 INFO L226 Difference]: Without dead ends: 40829 [2023-12-22 00:53:19,536 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 679 GetRequests, 448 SyntacticMatches, 0 SemanticMatches, 231 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16805 ImplicationChecksByTransitivity, 32.1s TimeCoverageRelationStatistics Valid=5842, Invalid=48214, Unknown=0, NotChecked=0, Total=54056 [2023-12-22 00:53:19,541 INFO L413 NwaCegarLoop]: 1887 mSDtfsCounter, 7250 mSDsluCounter, 55331 mSDsCounter, 0 mSdLazyCounter, 14766 mSolverCounterSat, 32 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 15.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7250 SdHoareTripleChecker+Valid, 57218 SdHoareTripleChecker+Invalid, 14798 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 32 IncrementalHoareTripleChecker+Valid, 14766 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 16.7s IncrementalHoareTripleChecker+Time [2023-12-22 00:53:19,542 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [7250 Valid, 57218 Invalid, 14798 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [32 Valid, 14766 Invalid, 0 Unknown, 0 Unchecked, 16.7s Time] [2023-12-22 00:53:19,558 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 40829 states. [2023-12-22 00:53:23,137 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 40829 to 34959. [2023-12-22 00:53:23,154 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 34959 states, 34957 states have (on average 1.190290928855451) internal successors, (41609), 34958 states have internal predecessors, (41609), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 00:53:23,189 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34959 states to 34959 states and 41609 transitions. [2023-12-22 00:53:23,189 INFO L78 Accepts]: Start accepts. Automaton has 34959 states and 41609 transitions. Word has length 247 [2023-12-22 00:53:23,189 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 00:53:23,189 INFO L495 AbstractCegarLoop]: Abstraction has 34959 states and 41609 transitions. [2023-12-22 00:53:23,190 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 46 states, 46 states have (on average 10.369565217391305) internal successors, (477), 46 states have internal predecessors, (477), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 00:53:23,190 INFO L276 IsEmpty]: Start isEmpty. Operand 34959 states and 41609 transitions. [2023-12-22 00:53:23,202 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 248 [2023-12-22 00:53:23,203 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 00:53:23,203 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 00:53:23,207 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (46)] Ended with exit code 0 [2023-12-22 00:53:23,407 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 46 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 00:53:23,407 INFO L420 AbstractCegarLoop]: === Iteration 46 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 00:53:23,407 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 00:53:23,407 INFO L85 PathProgramCache]: Analyzing trace with hash -1750954051, now seen corresponding path program 2 times [2023-12-22 00:53:23,408 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 00:53:23,408 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1684174573] [2023-12-22 00:53:23,408 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-12-22 00:53:23,408 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 00:53:23,408 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 00:53:23,409 INFO L229 MonitoredProcess]: Starting monitored process 47 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-22 00:53:23,411 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (47)] Waiting until timeout for monitored process [2023-12-22 00:53:23,609 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-12-22 00:53:23,609 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-12-22 00:53:23,614 INFO L262 TraceCheckSpWp]: Trace formula consists of 526 conjuncts, 24 conjunts are in the unsatisfiable core [2023-12-22 00:53:23,617 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 00:53:26,876 INFO L134 CoverageAnalysis]: Checked inductivity of 578 backedges. 100 proven. 478 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 00:53:26,877 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-22 00:53:28,260 INFO L134 CoverageAnalysis]: Checked inductivity of 578 backedges. 100 proven. 478 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 00:53:28,260 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 00:53:28,260 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1684174573] [2023-12-22 00:53:28,260 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1684174573] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-22 00:53:28,260 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-22 00:53:28,260 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [24, 23] total 46 [2023-12-22 00:53:28,260 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1007838561] [2023-12-22 00:53:28,260 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-22 00:53:28,261 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 46 states [2023-12-22 00:53:28,261 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 00:53:28,261 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 46 interpolants. [2023-12-22 00:53:28,262 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=141, Invalid=1929, Unknown=0, NotChecked=0, Total=2070 [2023-12-22 00:53:28,262 INFO L87 Difference]: Start difference. First operand 34959 states and 41609 transitions. Second operand has 46 states, 46 states have (on average 10.26086956521739) internal successors, (472), 46 states have internal predecessors, (472), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 00:54:24,496 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 00:54:24,497 INFO L93 Difference]: Finished difference Result 48822 states and 57697 transitions. [2023-12-22 00:54:24,497 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 208 states. [2023-12-22 00:54:24,497 INFO L78 Accepts]: Start accepts. Automaton has has 46 states, 46 states have (on average 10.26086956521739) internal successors, (472), 46 states have internal predecessors, (472), 0 states have call successors, (0), 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 247 [2023-12-22 00:54:24,498 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 00:54:24,535 INFO L225 Difference]: With dead ends: 48822 [2023-12-22 00:54:24,535 INFO L226 Difference]: Without dead ends: 42059 [2023-12-22 00:54:24,543 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 695 GetRequests, 448 SyntacticMatches, 0 SemanticMatches, 247 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19754 ImplicationChecksByTransitivity, 36.6s TimeCoverageRelationStatistics Valid=6647, Invalid=55105, Unknown=0, NotChecked=0, Total=61752 [2023-12-22 00:54:24,543 INFO L413 NwaCegarLoop]: 1920 mSDtfsCounter, 5798 mSDsluCounter, 49289 mSDsCounter, 0 mSdLazyCounter, 14625 mSolverCounterSat, 35 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 15.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5798 SdHoareTripleChecker+Valid, 51209 SdHoareTripleChecker+Invalid, 14660 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 35 IncrementalHoareTripleChecker+Valid, 14625 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 16.3s IncrementalHoareTripleChecker+Time [2023-12-22 00:54:24,543 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5798 Valid, 51209 Invalid, 14660 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [35 Valid, 14625 Invalid, 0 Unknown, 0 Unchecked, 16.3s Time] [2023-12-22 00:54:24,564 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42059 states. [2023-12-22 00:54:28,395 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42059 to 35608. [2023-12-22 00:54:28,416 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 35608 states, 35606 states have (on average 1.1880020221311014) internal successors, (42300), 35607 states have internal predecessors, (42300), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 00:54:28,455 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35608 states to 35608 states and 42300 transitions. [2023-12-22 00:54:28,455 INFO L78 Accepts]: Start accepts. Automaton has 35608 states and 42300 transitions. Word has length 247 [2023-12-22 00:54:28,455 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 00:54:28,455 INFO L495 AbstractCegarLoop]: Abstraction has 35608 states and 42300 transitions. [2023-12-22 00:54:28,455 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 46 states, 46 states have (on average 10.26086956521739) internal successors, (472), 46 states have internal predecessors, (472), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 00:54:28,455 INFO L276 IsEmpty]: Start isEmpty. Operand 35608 states and 42300 transitions. [2023-12-22 00:54:28,468 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 248 [2023-12-22 00:54:28,468 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 00:54:28,468 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 00:54:28,473 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (47)] Forceful destruction successful, exit code 0 [2023-12-22 00:54:28,672 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 47 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 00:54:28,672 INFO L420 AbstractCegarLoop]: === Iteration 47 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 00:54:28,673 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 00:54:28,673 INFO L85 PathProgramCache]: Analyzing trace with hash 1155082337, now seen corresponding path program 2 times [2023-12-22 00:54:28,673 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 00:54:28,673 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [746107927] [2023-12-22 00:54:28,673 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-12-22 00:54:28,673 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 00:54:28,674 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 00:54:28,674 INFO L229 MonitoredProcess]: Starting monitored process 48 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-22 00:54:28,676 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (48)] Waiting until timeout for monitored process [2023-12-22 00:54:28,861 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-12-22 00:54:28,861 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-12-22 00:54:28,866 INFO L262 TraceCheckSpWp]: Trace formula consists of 526 conjuncts, 24 conjunts are in the unsatisfiable core [2023-12-22 00:54:28,869 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 00:54:31,870 INFO L134 CoverageAnalysis]: Checked inductivity of 578 backedges. 123 proven. 455 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 00:54:31,870 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-22 00:54:33,291 INFO L134 CoverageAnalysis]: Checked inductivity of 578 backedges. 123 proven. 455 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 00:54:33,292 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 00:54:33,292 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [746107927] [2023-12-22 00:54:33,292 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [746107927] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-22 00:54:33,292 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-22 00:54:33,292 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [24, 23] total 46 [2023-12-22 00:54:33,292 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1675236386] [2023-12-22 00:54:33,292 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-22 00:54:33,292 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 46 states [2023-12-22 00:54:33,293 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 00:54:33,293 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 46 interpolants. [2023-12-22 00:54:33,293 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=141, Invalid=1929, Unknown=0, NotChecked=0, Total=2070 [2023-12-22 00:54:33,293 INFO L87 Difference]: Start difference. First operand 35608 states and 42300 transitions. Second operand has 46 states, 46 states have (on average 10.152173913043478) internal successors, (467), 46 states have internal predecessors, (467), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 00:55:41,403 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 00:55:41,403 INFO L93 Difference]: Finished difference Result 48981 states and 57850 transitions. [2023-12-22 00:55:41,404 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 227 states. [2023-12-22 00:55:41,404 INFO L78 Accepts]: Start accepts. Automaton has has 46 states, 46 states have (on average 10.152173913043478) internal successors, (467), 46 states have internal predecessors, (467), 0 states have call successors, (0), 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 247 [2023-12-22 00:55:41,404 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 00:55:41,444 INFO L225 Difference]: With dead ends: 48981 [2023-12-22 00:55:41,444 INFO L226 Difference]: Without dead ends: 42080 [2023-12-22 00:55:41,453 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 714 GetRequests, 448 SyntacticMatches, 0 SemanticMatches, 266 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23297 ImplicationChecksByTransitivity, 39.7s TimeCoverageRelationStatistics Valid=7432, Invalid=64124, Unknown=0, NotChecked=0, Total=71556 [2023-12-22 00:55:41,454 INFO L413 NwaCegarLoop]: 1949 mSDtfsCounter, 4247 mSDsluCounter, 59264 mSDsCounter, 0 mSdLazyCounter, 18532 mSolverCounterSat, 33 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 23.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4247 SdHoareTripleChecker+Valid, 61213 SdHoareTripleChecker+Invalid, 18565 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.2s SdHoareTripleChecker+Time, 33 IncrementalHoareTripleChecker+Valid, 18532 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 24.9s IncrementalHoareTripleChecker+Time [2023-12-22 00:55:41,454 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4247 Valid, 61213 Invalid, 18565 Unknown, 0 Unchecked, 0.2s Time], IncrementalHoareTripleChecker [33 Valid, 18532 Invalid, 0 Unknown, 0 Unchecked, 24.9s Time] [2023-12-22 00:55:41,475 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42080 states. [2023-12-22 00:55:45,328 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42080 to 35146. [2023-12-22 00:55:45,350 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 35146 states, 35144 states have (on average 1.185977691782381) internal successors, (41680), 35145 states have internal predecessors, (41680), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 00:55:45,473 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35146 states to 35146 states and 41680 transitions. [2023-12-22 00:55:45,474 INFO L78 Accepts]: Start accepts. Automaton has 35146 states and 41680 transitions. Word has length 247 [2023-12-22 00:55:45,474 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 00:55:45,474 INFO L495 AbstractCegarLoop]: Abstraction has 35146 states and 41680 transitions. [2023-12-22 00:55:45,474 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 46 states, 46 states have (on average 10.152173913043478) internal successors, (467), 46 states have internal predecessors, (467), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 00:55:45,474 INFO L276 IsEmpty]: Start isEmpty. Operand 35146 states and 41680 transitions. [2023-12-22 00:55:45,485 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 249 [2023-12-22 00:55:45,485 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 00:55:45,486 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 00:55:45,492 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (48)] Forceful destruction successful, exit code 0 [2023-12-22 00:55:45,690 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 48 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 00:55:45,690 INFO L420 AbstractCegarLoop]: === Iteration 48 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 00:55:45,690 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 00:55:45,691 INFO L85 PathProgramCache]: Analyzing trace with hash 2137490258, now seen corresponding path program 2 times [2023-12-22 00:55:45,691 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 00:55:45,691 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1619928350] [2023-12-22 00:55:45,691 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-12-22 00:55:45,691 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 00:55:45,691 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 00:55:45,692 INFO L229 MonitoredProcess]: Starting monitored process 49 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-22 00:55:45,693 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (49)] Waiting until timeout for monitored process [2023-12-22 00:55:45,860 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-12-22 00:55:45,860 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-12-22 00:55:45,865 INFO L262 TraceCheckSpWp]: Trace formula consists of 527 conjuncts, 6 conjunts are in the unsatisfiable core [2023-12-22 00:55:45,867 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 00:55:46,260 INFO L134 CoverageAnalysis]: Checked inductivity of 592 backedges. 21 proven. 515 refuted. 0 times theorem prover too weak. 56 trivial. 0 not checked. [2023-12-22 00:55:46,260 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-22 00:55:46,804 INFO L134 CoverageAnalysis]: Checked inductivity of 592 backedges. 21 proven. 515 refuted. 0 times theorem prover too weak. 56 trivial. 0 not checked. [2023-12-22 00:55:46,804 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 00:55:46,804 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1619928350] [2023-12-22 00:55:46,804 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1619928350] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-22 00:55:46,804 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-22 00:55:46,804 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 12 [2023-12-22 00:55:46,804 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2020443530] [2023-12-22 00:55:46,805 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-22 00:55:46,805 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-12-22 00:55:46,805 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 00:55:46,805 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-12-22 00:55:46,805 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=96, Unknown=0, NotChecked=0, Total=132 [2023-12-22 00:55:46,806 INFO L87 Difference]: Start difference. First operand 35146 states and 41680 transitions. Second operand has 12 states, 12 states have (on average 34.083333333333336) internal successors, (409), 12 states have internal predecessors, (409), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 00:55:52,523 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 00:55:52,523 INFO L93 Difference]: Finished difference Result 73273 states and 85014 transitions. [2023-12-22 00:55:52,524 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-12-22 00:55:52,524 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 34.083333333333336) internal successors, (409), 12 states have internal predecessors, (409), 0 states have call successors, (0), 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 248 [2023-12-22 00:55:52,524 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 00:55:52,575 INFO L225 Difference]: With dead ends: 73273 [2023-12-22 00:55:52,575 INFO L226 Difference]: Without dead ends: 47199 [2023-12-22 00:55:52,584 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 494 GetRequests, 484 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=36, Invalid=96, Unknown=0, NotChecked=0, Total=132 [2023-12-22 00:55:52,585 INFO L413 NwaCegarLoop]: 1683 mSDtfsCounter, 5894 mSDsluCounter, 6872 mSDsCounter, 0 mSdLazyCounter, 176 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5894 SdHoareTripleChecker+Valid, 8555 SdHoareTripleChecker+Invalid, 184 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 176 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-22 00:55:52,585 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5894 Valid, 8555 Invalid, 184 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 176 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-22 00:55:52,611 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 47199 states. [2023-12-22 00:55:57,566 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 47199 to 41983. [2023-12-22 00:55:57,589 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 41983 states, 41981 states have (on average 1.1708868297563184) internal successors, (49155), 41982 states have internal predecessors, (49155), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 00:55:57,630 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41983 states to 41983 states and 49155 transitions. [2023-12-22 00:55:57,630 INFO L78 Accepts]: Start accepts. Automaton has 41983 states and 49155 transitions. Word has length 248 [2023-12-22 00:55:57,631 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 00:55:57,631 INFO L495 AbstractCegarLoop]: Abstraction has 41983 states and 49155 transitions. [2023-12-22 00:55:57,631 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 34.083333333333336) internal successors, (409), 12 states have internal predecessors, (409), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 00:55:57,631 INFO L276 IsEmpty]: Start isEmpty. Operand 41983 states and 49155 transitions. [2023-12-22 00:55:57,641 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 249 [2023-12-22 00:55:57,642 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 00:55:57,642 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 00:55:57,646 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 (49)] Ended with exit code 0 [2023-12-22 00:55:57,846 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 49 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 00:55:57,846 INFO L420 AbstractCegarLoop]: === Iteration 49 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 00:55:57,846 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 00:55:57,847 INFO L85 PathProgramCache]: Analyzing trace with hash -1368995294, now seen corresponding path program 2 times [2023-12-22 00:55:57,847 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 00:55:57,847 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [606464363] [2023-12-22 00:55:57,847 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-12-22 00:55:57,847 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 00:55:57,847 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 00:55:57,848 INFO L229 MonitoredProcess]: Starting monitored process 50 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-22 00:55:57,849 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (50)] Waiting until timeout for monitored process [2023-12-22 00:55:58,046 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-12-22 00:55:58,047 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-12-22 00:55:58,052 INFO L262 TraceCheckSpWp]: Trace formula consists of 527 conjuncts, 24 conjunts are in the unsatisfiable core [2023-12-22 00:55:58,054 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 00:56:01,521 INFO L134 CoverageAnalysis]: Checked inductivity of 592 backedges. 45 proven. 547 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 00:56:01,521 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-22 00:56:03,348 INFO L134 CoverageAnalysis]: Checked inductivity of 592 backedges. 45 proven. 547 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 00:56:03,349 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 00:56:03,349 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [606464363] [2023-12-22 00:56:03,349 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [606464363] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-22 00:56:03,349 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-22 00:56:03,349 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [24, 23] total 46 [2023-12-22 00:56:03,349 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1810291482] [2023-12-22 00:56:03,349 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-22 00:56:03,349 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 46 states [2023-12-22 00:56:03,349 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 00:56:03,350 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 46 interpolants. [2023-12-22 00:56:03,350 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=141, Invalid=1929, Unknown=0, NotChecked=0, Total=2070 [2023-12-22 00:56:03,350 INFO L87 Difference]: Start difference. First operand 41983 states and 49155 transitions. Second operand has 46 states, 46 states have (on average 10.608695652173912) internal successors, (488), 46 states have internal predecessors, (488), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 00:56:39,982 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 00:56:39,982 INFO L93 Difference]: Finished difference Result 84676 states and 98093 transitions. [2023-12-22 00:56:39,983 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 111 states. [2023-12-22 00:56:39,983 INFO L78 Accepts]: Start accepts. Automaton has has 46 states, 46 states have (on average 10.608695652173912) internal successors, (488), 46 states have internal predecessors, (488), 0 states have call successors, (0), 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 248 [2023-12-22 00:56:39,983 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 00:56:40,066 INFO L225 Difference]: With dead ends: 84676 [2023-12-22 00:56:40,066 INFO L226 Difference]: Without dead ends: 79992 [2023-12-22 00:56:40,077 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 600 GetRequests, 450 SyntacticMatches, 0 SemanticMatches, 150 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5917 ImplicationChecksByTransitivity, 14.8s TimeCoverageRelationStatistics Valid=2292, Invalid=20660, Unknown=0, NotChecked=0, Total=22952 [2023-12-22 00:56:40,078 INFO L413 NwaCegarLoop]: 1762 mSDtfsCounter, 5240 mSDsluCounter, 53123 mSDsCounter, 0 mSdLazyCounter, 10759 mSolverCounterSat, 23 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 12.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5240 SdHoareTripleChecker+Valid, 54885 SdHoareTripleChecker+Invalid, 10782 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 23 IncrementalHoareTripleChecker+Valid, 10759 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 13.8s IncrementalHoareTripleChecker+Time [2023-12-22 00:56:40,078 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5240 Valid, 54885 Invalid, 10782 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [23 Valid, 10759 Invalid, 0 Unknown, 0 Unchecked, 13.8s Time] [2023-12-22 00:56:40,127 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 79992 states. [2023-12-22 00:56:49,558 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 79992 to 73887. [2023-12-22 00:56:49,599 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 73887 states, 73885 states have (on average 1.1596129119577723) internal successors, (85678), 73886 states have internal predecessors, (85678), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 00:56:49,798 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 73887 states to 73887 states and 85678 transitions. [2023-12-22 00:56:49,799 INFO L78 Accepts]: Start accepts. Automaton has 73887 states and 85678 transitions. Word has length 248 [2023-12-22 00:56:49,799 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 00:56:49,799 INFO L495 AbstractCegarLoop]: Abstraction has 73887 states and 85678 transitions. [2023-12-22 00:56:49,799 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 46 states, 46 states have (on average 10.608695652173912) internal successors, (488), 46 states have internal predecessors, (488), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 00:56:49,799 INFO L276 IsEmpty]: Start isEmpty. Operand 73887 states and 85678 transitions. [2023-12-22 00:56:49,820 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 254 [2023-12-22 00:56:49,820 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 00:56:49,820 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 00:56:49,827 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (50)] Forceful destruction successful, exit code 0 [2023-12-22 00:56:50,025 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 50 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 00:56:50,027 INFO L420 AbstractCegarLoop]: === Iteration 50 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 00:56:50,027 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 00:56:50,027 INFO L85 PathProgramCache]: Analyzing trace with hash 2028662243, now seen corresponding path program 1 times [2023-12-22 00:56:50,028 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 00:56:50,029 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1031874657] [2023-12-22 00:56:50,029 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 00:56:50,030 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 00:56:50,030 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 00:56:50,031 INFO L229 MonitoredProcess]: Starting monitored process 51 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-22 00:56:50,062 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (51)] Waiting until timeout for monitored process [2023-12-22 00:56:50,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 00:56:50,148 INFO L262 TraceCheckSpWp]: Trace formula consists of 334 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-22 00:56:50,150 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 00:56:50,510 INFO L134 CoverageAnalysis]: Checked inductivity of 56 backedges. 56 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 00:56:50,510 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 00:56:50,510 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 00:56:50,510 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1031874657] [2023-12-22 00:56:50,510 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1031874657] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 00:56:50,510 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 00:56:50,510 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-22 00:56:50,510 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [615099586] [2023-12-22 00:56:50,511 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 00:56:50,511 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-22 00:56:50,511 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 00:56:50,511 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-22 00:56:50,511 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-22 00:56:50,511 INFO L87 Difference]: Start difference. First operand 73887 states and 85678 transitions. Second operand has 3 states, 3 states have (on average 84.33333333333333) internal successors, (253), 2 states have internal predecessors, (253), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 00:57:38,719 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 00:57:38,719 INFO L93 Difference]: Finished difference Result 80648 states and 95741 transitions. [2023-12-22 00:57:38,720 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-22 00:57:38,720 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 84.33333333333333) internal successors, (253), 2 states have internal predecessors, (253), 0 states have call successors, (0), 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 253 [2023-12-22 00:57:38,720 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 00:57:38,786 INFO L225 Difference]: With dead ends: 80648 [2023-12-22 00:57:38,786 INFO L226 Difference]: Without dead ends: 76891 [2023-12-22 00:57:38,796 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 252 GetRequests, 251 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-22 00:57:38,797 INFO L413 NwaCegarLoop]: 708 mSDtfsCounter, 673 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 2246 mSolverCounterSat, 664 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 32.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 673 SdHoareTripleChecker+Valid, 715 SdHoareTripleChecker+Invalid, 2910 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 664 IncrementalHoareTripleChecker+Valid, 2246 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 39.0s IncrementalHoareTripleChecker+Time [2023-12-22 00:57:38,797 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [673 Valid, 715 Invalid, 2910 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [664 Valid, 2246 Invalid, 0 Unknown, 0 Unchecked, 39.0s Time] [2023-12-22 00:57:38,836 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 76891 states. [2023-12-22 00:57:47,859 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 76891 to 76891. [2023-12-22 00:57:47,897 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 76891 states, 76889 states have (on average 1.1583451469000767) internal successors, (89064), 76890 states have internal predecessors, (89064), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 00:57:47,985 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 76891 states to 76891 states and 89064 transitions. [2023-12-22 00:57:47,985 INFO L78 Accepts]: Start accepts. Automaton has 76891 states and 89064 transitions. Word has length 253 [2023-12-22 00:57:47,985 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 00:57:47,986 INFO L495 AbstractCegarLoop]: Abstraction has 76891 states and 89064 transitions. [2023-12-22 00:57:47,986 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 84.33333333333333) internal successors, (253), 2 states have internal predecessors, (253), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 00:57:47,986 INFO L276 IsEmpty]: Start isEmpty. Operand 76891 states and 89064 transitions. [2023-12-22 00:57:48,004 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 255 [2023-12-22 00:57:48,004 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 00:57:48,004 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 00:57:48,009 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 (51)] Ended with exit code 0 [2023-12-22 00:57:48,208 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 51 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 00:57:48,209 INFO L420 AbstractCegarLoop]: === Iteration 51 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 00:57:48,209 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 00:57:48,209 INFO L85 PathProgramCache]: Analyzing trace with hash -1927234822, now seen corresponding path program 1 times [2023-12-22 00:57:48,210 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 00:57:48,210 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [143513875] [2023-12-22 00:57:48,211 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 00:57:48,211 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 00:57:48,211 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 00:57:48,212 INFO L229 MonitoredProcess]: Starting monitored process 52 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-22 00:57:48,213 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (52)] Waiting until timeout for monitored process [2023-12-22 00:57:48,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 00:57:48,306 INFO L262 TraceCheckSpWp]: Trace formula consists of 331 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-22 00:57:48,308 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 00:57:48,914 INFO L134 CoverageAnalysis]: Checked inductivity of 56 backedges. 56 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 00:57:48,914 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 00:57:48,914 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 00:57:48,915 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [143513875] [2023-12-22 00:57:48,915 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [143513875] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 00:57:48,915 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 00:57:48,915 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-22 00:57:48,917 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1010518602] [2023-12-22 00:57:48,917 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 00:57:48,917 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-22 00:57:48,917 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 00:57:48,917 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-22 00:57:48,918 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-22 00:57:48,918 INFO L87 Difference]: Start difference. First operand 76891 states and 89064 transitions. Second operand has 3 states, 3 states have (on average 84.66666666666667) internal successors, (254), 2 states have internal predecessors, (254), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 00:58:27,055 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 00:58:27,055 INFO L93 Difference]: Finished difference Result 82901 states and 97114 transitions. [2023-12-22 00:58:27,055 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-22 00:58:27,055 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 84.66666666666667) internal successors, (254), 2 states have internal predecessors, (254), 0 states have call successors, (0), 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 254 [2023-12-22 00:58:27,056 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 00:58:27,128 INFO L225 Difference]: With dead ends: 82901 [2023-12-22 00:58:27,128 INFO L226 Difference]: Without dead ends: 76891 [2023-12-22 00:58:27,140 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 253 GetRequests, 252 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-22 00:58:27,140 INFO L413 NwaCegarLoop]: 788 mSDtfsCounter, 657 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 2183 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 24.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 657 SdHoareTripleChecker+Valid, 795 SdHoareTripleChecker+Invalid, 2188 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 2183 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 29.3s IncrementalHoareTripleChecker+Time [2023-12-22 00:58:27,140 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [657 Valid, 795 Invalid, 2188 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 2183 Invalid, 0 Unknown, 0 Unchecked, 29.3s Time] [2023-12-22 00:58:27,181 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 76891 states. [2023-12-22 00:58:36,275 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 76891 to 76891. [2023-12-22 00:58:36,328 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 76891 states, 76889 states have (on average 1.1582671123307626) internal successors, (89058), 76890 states have internal predecessors, (89058), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 00:58:36,435 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 76891 states to 76891 states and 89058 transitions. [2023-12-22 00:58:36,435 INFO L78 Accepts]: Start accepts. Automaton has 76891 states and 89058 transitions. Word has length 254 [2023-12-22 00:58:36,435 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 00:58:36,435 INFO L495 AbstractCegarLoop]: Abstraction has 76891 states and 89058 transitions. [2023-12-22 00:58:36,436 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 84.66666666666667) internal successors, (254), 2 states have internal predecessors, (254), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 00:58:36,436 INFO L276 IsEmpty]: Start isEmpty. Operand 76891 states and 89058 transitions. [2023-12-22 00:58:36,461 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 272 [2023-12-22 00:58:36,461 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 00:58:36,461 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, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 00:58:36,464 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 (52)] Ended with exit code 0 [2023-12-22 00:58:36,664 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 52 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 00:58:36,665 INFO L420 AbstractCegarLoop]: === Iteration 52 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 00:58:36,665 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 00:58:36,665 INFO L85 PathProgramCache]: Analyzing trace with hash -1663358836, now seen corresponding path program 1 times [2023-12-22 00:58:36,666 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 00:58:36,666 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2126775861] [2023-12-22 00:58:36,745 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 00:58:36,745 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 00:58:36,745 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 00:58:36,755 INFO L229 MonitoredProcess]: Starting monitored process 53 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-22 00:58:36,756 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (53)] Waiting until timeout for monitored process [2023-12-22 00:58:36,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 00:58:36,861 INFO L262 TraceCheckSpWp]: Trace formula consists of 360 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-22 00:58:36,863 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 00:58:37,259 INFO L134 CoverageAnalysis]: Checked inductivity of 183 backedges. 113 proven. 70 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 00:58:37,259 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-22 00:58:37,673 INFO L134 CoverageAnalysis]: Checked inductivity of 183 backedges. 183 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 00:58:37,673 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 00:58:37,673 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2126775861] [2023-12-22 00:58:37,673 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2126775861] provided 1 perfect and 1 imperfect interpolant sequences [2023-12-22 00:58:37,673 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-22 00:58:37,674 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [3] total 5 [2023-12-22 00:58:37,674 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [441067942] [2023-12-22 00:58:37,674 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 00:58:37,674 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-22 00:58:37,674 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 00:58:37,674 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-22 00:58:37,675 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-12-22 00:58:37,675 INFO L87 Difference]: Start difference. First operand 76891 states and 89058 transitions. Second operand has 3 states, 3 states have (on average 90.33333333333333) internal successors, (271), 3 states have internal predecessors, (271), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Received shutdown request... [2023-12-22 00:59:17,566 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 (53)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2023-12-22 00:59:17,566 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2023-12-22 00:59:17,845 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-22 00:59:17,845 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 540 GetRequests, 537 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-12-22 00:59:17,846 INFO L413 NwaCegarLoop]: 587 mSDtfsCounter, 272 mSDsluCounter, 102 mSDsCounter, 0 mSdLazyCounter, 1008 mSolverCounterSat, 200 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 29.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 272 SdHoareTripleChecker+Valid, 689 SdHoareTripleChecker+Invalid, 1208 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 200 IncrementalHoareTripleChecker+Valid, 1008 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 31.7s IncrementalHoareTripleChecker+Time [2023-12-22 00:59:17,846 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [272 Valid, 689 Invalid, 1208 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [200 Valid, 1008 Invalid, 0 Unknown, 0 Unchecked, 31.7s Time] [2023-12-22 00:59:17,847 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (1 of 2 remaining) [2023-12-22 00:59:17,854 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (53)] Forceful destruction successful, exit code 0 [2023-12-22 00:59:18,047 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 53 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 00:59:18,048 WARN L619 AbstractCegarLoop]: Verification canceled: while NwaCegarLoop was constructing difference of abstraction (76891states) and FLOYD_HOARE automaton (currently 3 states, 3 states before enhancement),while ReachableStatesComputation was computing reachable states (74947 states constructed, input type IntersectNwa). [2023-12-22 00:59:18,050 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 2 remaining) [2023-12-22 00:59:18,052 INFO L445 BasicCegarLoop]: Path program histogram: [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 00:59:18,054 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2023-12-22 00:59:18,055 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.12 12:59:18 BoogieIcfgContainer [2023-12-22 00:59:18,055 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-12-22 00:59:18,055 INFO L158 Benchmark]: Toolchain (without parser) took 853726.84ms. Allocated memory was 192.9MB in the beginning and 3.6GB in the end (delta: 3.4GB). Free memory was 116.1MB in the beginning and 2.8GB in the end (delta: -2.7GB). Peak memory consumption was 2.0GB. Max. memory is 8.0GB. [2023-12-22 00:59:18,055 INFO L158 Benchmark]: CDTParser took 0.12ms. Allocated memory is still 192.9MB. Free memory is still 143.6MB. There was no memory consumed. Max. memory is 8.0GB. [2023-12-22 00:59:18,055 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1294.43ms. Allocated memory was 192.9MB in the beginning and 231.7MB in the end (delta: 38.8MB). Free memory was 115.9MB in the beginning and 138.7MB in the end (delta: -22.8MB). Peak memory consumption was 74.7MB. Max. memory is 8.0GB. [2023-12-22 00:59:18,055 INFO L158 Benchmark]: Boogie Procedure Inliner took 183.38ms. Allocated memory is still 231.7MB. Free memory was 138.7MB in the beginning and 103.1MB in the end (delta: 35.7MB). Peak memory consumption was 35.7MB. Max. memory is 8.0GB. [2023-12-22 00:59:18,056 INFO L158 Benchmark]: Boogie Preprocessor took 286.76ms. Allocated memory is still 231.7MB. Free memory was 103.1MB in the beginning and 136.1MB in the end (delta: -33.0MB). Peak memory consumption was 52.4MB. Max. memory is 8.0GB. [2023-12-22 00:59:18,056 INFO L158 Benchmark]: RCFGBuilder took 26460.00ms. Allocated memory was 231.7MB in the beginning and 514.9MB in the end (delta: 283.1MB). Free memory was 136.1MB in the beginning and 276.6MB in the end (delta: -140.5MB). Peak memory consumption was 186.6MB. Max. memory is 8.0GB. [2023-12-22 00:59:18,056 INFO L158 Benchmark]: TraceAbstraction took 825495.64ms. Allocated memory was 514.9MB in the beginning and 3.6GB in the end (delta: 3.1GB). Free memory was 276.1MB in the beginning and 2.8GB in the end (delta: -2.5GB). Peak memory consumption was 1.8GB. Max. memory is 8.0GB. [2023-12-22 00:59:18,056 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.12ms. Allocated memory is still 192.9MB. Free memory is still 143.6MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 1294.43ms. Allocated memory was 192.9MB in the beginning and 231.7MB in the end (delta: 38.8MB). Free memory was 115.9MB in the beginning and 138.7MB in the end (delta: -22.8MB). Peak memory consumption was 74.7MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 183.38ms. Allocated memory is still 231.7MB. Free memory was 138.7MB in the beginning and 103.1MB in the end (delta: 35.7MB). Peak memory consumption was 35.7MB. Max. memory is 8.0GB. * Boogie Preprocessor took 286.76ms. Allocated memory is still 231.7MB. Free memory was 103.1MB in the beginning and 136.1MB in the end (delta: -33.0MB). Peak memory consumption was 52.4MB. Max. memory is 8.0GB. * RCFGBuilder took 26460.00ms. Allocated memory was 231.7MB in the beginning and 514.9MB in the end (delta: 283.1MB). Free memory was 136.1MB in the beginning and 276.6MB in the end (delta: -140.5MB). Peak memory consumption was 186.6MB. Max. memory is 8.0GB. * TraceAbstraction took 825495.64ms. Allocated memory was 514.9MB in the beginning and 3.6GB in the end (delta: 3.1GB). Free memory was 276.1MB in the beginning and 2.8GB in the end (delta: -2.5GB). Peak memory consumption was 1.8GB. 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: 634]: Timeout (TraceAbstraction) Unable to prove that a call to reach_error is unreachable (line 634). Cancelled while NwaCegarLoop was constructing difference of abstraction (76891states) and FLOYD_HOARE automaton (currently 3 states, 3 states before enhancement),while ReachableStatesComputation was computing reachable states (74947 states constructed, input type IntersectNwa). - TimeoutResultAtElement [Line: 439]: Timeout (TraceAbstraction) Unable to prove that a call to reach_error is unreachable (line 439). Cancelled while NwaCegarLoop was constructing difference of abstraction (76891states) and FLOYD_HOARE automaton (currently 3 states, 3 states before enhancement),while ReachableStatesComputation was computing reachable states (74947 states constructed, input type IntersectNwa). - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 836 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 825.5s, OverallIterations: 52, TraceHistogramMax: 8, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.3s, AutomataDifference: 652.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 199558 SdHoareTripleChecker+Valid, 339.7s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 199558 mSDsluCounter, 782750 SdHoareTripleChecker+Invalid, 299.7s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 704174 mSDsCounter, 2768 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 137833 IncrementalHoareTripleChecker+Invalid, 140601 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 2768 mSolverCounterUnsat, 78576 mSDtfsCounter, 137833 mSolverCounterSat, 1.8s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 13312 GetRequests, 10822 SyntacticMatches, 0 SemanticMatches, 2490 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 111597 ImplicationChecksByTransitivity, 230.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=76891occurred in iteration=50, InterpolantAutomatonStates: 1969, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 83.1s AutomataMinimizationTime, 51 MinimizatonAttempts, 165617 StatesRemovedByMinimization, 44 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 1.0s SsaConstructionTime, 2.8s SatisfiabilityAnalysisTime, 73.6s InterpolantComputationTime, 7175 NumberOfCodeBlocks, 6555 NumberOfCodeBlocksAsserted, 58 NumberOfCheckSat, 11566 ConstructedInterpolants, 3204 QuantifiedInterpolants, 157597 SizeOfPredicates, 268 NumberOfNonLiveVariables, 14289 ConjunctsInSsa, 480 ConjunctsInUnsatCore, 79 InterpolantComputations, 26 PerfectInterpolantSequences, 4285/14381 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