/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/hardness-nfm22/hardness_operatoramount_amount250_file-24.i -------------------------------------------------------------------------------- This is Ultimate 0.2.4-tmp.fs.bitabs-eval-d9c3e40-m [2023-12-24 06:37:41,689 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-24 06:37:41,759 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Bitvector.epf [2023-12-24 06:37:41,763 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-24 06:37:41,763 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-24 06:37:41,784 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-24 06:37:41,785 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-24 06:37:41,785 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-24 06:37:41,786 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-12-24 06:37:41,788 INFO L153 SettingsManager]: * Use memory slicer=true [2023-12-24 06:37:41,789 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-24 06:37:41,789 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-24 06:37:41,789 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-24 06:37:41,790 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-24 06:37:41,791 INFO L153 SettingsManager]: * Use SBE=true [2023-12-24 06:37:41,791 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-24 06:37:41,791 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-24 06:37:41,791 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-24 06:37:41,792 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-24 06:37:41,792 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-24 06:37:41,792 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-24 06:37:41,792 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-24 06:37:41,792 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-24 06:37:41,793 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-12-24 06:37:41,793 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-12-24 06:37:41,793 INFO L153 SettingsManager]: * Allow undefined functions=false [2023-12-24 06:37:41,793 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-12-24 06:37:41,793 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-24 06:37:41,793 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-24 06:37:41,794 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-24 06:37:41,794 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-24 06:37:41,794 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-12-24 06:37:41,795 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-12-24 06:37:41,795 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-24 06:37:41,795 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-24 06:37:41,795 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-24 06:37:41,795 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-24 06:37:41,795 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-24 06:37:41,795 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2023-12-24 06:37:41,796 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-12-24 06:37:41,796 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-24 06:37:41,796 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-12-24 06:37:41,796 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-24 06:37:41,796 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-12-24 06:37:41,796 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-24 06:37:41,796 INFO L153 SettingsManager]: * Logic for external solver=AUFBV [2023-12-24 06:37:41,797 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2023-12-24 06:37:41,961 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-24 06:37:41,977 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-24 06:37:41,979 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-24 06:37:41,980 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-24 06:37:41,980 INFO L274 PluginConnector]: CDTParser initialized [2023-12-24 06:37:41,981 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/hardness-nfm22/hardness_operatoramount_amount250_file-24.i [2023-12-24 06:37:43,017 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-24 06:37:43,286 INFO L384 CDTParser]: Found 1 translation units. [2023-12-24 06:37:43,287 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/hardness-nfm22/hardness_operatoramount_amount250_file-24.i [2023-12-24 06:37:43,295 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/61cf66090/15a47cd72bc14e768633c893c0e04bb0/FLAGd38ab92a6 [2023-12-24 06:37:43,311 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/61cf66090/15a47cd72bc14e768633c893c0e04bb0 [2023-12-24 06:37:43,313 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-24 06:37:43,314 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-12-24 06:37:43,315 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-24 06:37:43,315 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-24 06:37:43,319 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-24 06:37:43,319 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.12 06:37:43" (1/1) ... [2023-12-24 06:37:43,320 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@27cf3a5b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.12 06:37:43, skipping insertion in model container [2023-12-24 06:37:43,320 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.12 06:37:43" (1/1) ... [2023-12-24 06:37:43,357 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-24 06:37:43,446 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/hardness-nfm22/hardness_operatoramount_amount250_file-24.i[916,929] [2023-12-24 06:37:43,530 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-24 06:37:43,541 INFO L202 MainTranslator]: Completed pre-run [2023-12-24 06:37:43,552 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/hardness-nfm22/hardness_operatoramount_amount250_file-24.i[916,929] [2023-12-24 06:37:43,598 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-24 06:37:43,610 INFO L206 MainTranslator]: Completed translation [2023-12-24 06:37:43,611 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.12 06:37:43 WrapperNode [2023-12-24 06:37:43,611 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-24 06:37:43,611 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-24 06:37:43,611 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-24 06:37:43,612 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-24 06:37:43,616 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.12 06:37:43" (1/1) ... [2023-12-24 06:37:43,630 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.12 06:37:43" (1/1) ... [2023-12-24 06:37:43,661 INFO L138 Inliner]: procedures = 27, calls = 57, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 344 [2023-12-24 06:37:43,662 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-24 06:37:43,662 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-24 06:37:43,662 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-24 06:37:43,662 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-24 06:37:43,670 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.12 06:37:43" (1/1) ... [2023-12-24 06:37:43,671 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.12 06:37:43" (1/1) ... [2023-12-24 06:37:43,676 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.12 06:37:43" (1/1) ... [2023-12-24 06:37:43,694 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]. [2023-12-24 06:37:43,694 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.12 06:37:43" (1/1) ... [2023-12-24 06:37:43,694 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.12 06:37:43" (1/1) ... [2023-12-24 06:37:43,722 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.12 06:37:43" (1/1) ... [2023-12-24 06:37:43,739 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.12 06:37:43" (1/1) ... [2023-12-24 06:37:43,742 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.12 06:37:43" (1/1) ... [2023-12-24 06:37:43,744 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.12 06:37:43" (1/1) ... [2023-12-24 06:37:43,748 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-24 06:37:43,749 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-24 06:37:43,749 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-24 06:37:43,749 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-24 06:37:43,750 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.12 06:37:43" (1/1) ... [2023-12-24 06:37:43,761 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-24 06:37:43,775 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-24 06:37:43,785 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) [2023-12-24 06:37:43,802 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 [2023-12-24 06:37:43,817 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-24 06:37:43,817 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2023-12-24 06:37:43,817 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-12-24 06:37:43,818 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-12-24 06:37:43,818 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-24 06:37:43,819 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-24 06:37:43,921 INFO L241 CfgBuilder]: Building ICFG [2023-12-24 06:37:43,923 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-24 06:38:14,904 INFO L282 CfgBuilder]: Performing block encoding [2023-12-24 06:38:14,976 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-24 06:38:14,976 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-12-24 06:38:14,976 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.12 06:38:14 BoogieIcfgContainer [2023-12-24 06:38:14,976 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-24 06:38:14,978 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-24 06:38:14,978 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-24 06:38:14,980 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-24 06:38:14,981 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.12 06:37:43" (1/3) ... [2023-12-24 06:38:14,981 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6571d188 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.12 06:38:14, skipping insertion in model container [2023-12-24 06:38:14,981 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.12 06:37:43" (2/3) ... [2023-12-24 06:38:14,981 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6571d188 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.12 06:38:14, skipping insertion in model container [2023-12-24 06:38:14,981 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.12 06:38:14" (3/3) ... [2023-12-24 06:38:14,982 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_operatoramount_amount250_file-24.i [2023-12-24 06:38:14,995 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-24 06:38:14,995 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-12-24 06:38:15,051 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-24 06:38:15,058 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;@1b082bd8, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-24 06:38:15,058 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-12-24 06:38:15,062 INFO L276 IsEmpty]: Start isEmpty. Operand has 143 states, 96 states have (on average 1.5625) internal successors, (150), 97 states have internal predecessors, (150), 44 states have call successors, (44), 1 states have call predecessors, (44), 1 states have return successors, (44), 44 states have call predecessors, (44), 44 states have call successors, (44) [2023-12-24 06:38:15,087 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 285 [2023-12-24 06:38:15,087 INFO L187 NwaCegarLoop]: Found error trace [2023-12-24 06:38:15,088 INFO L195 NwaCegarLoop]: trace histogram [44, 44, 44, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-24 06:38:15,088 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-24 06:38:15,094 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-24 06:38:15,094 INFO L85 PathProgramCache]: Analyzing trace with hash 1353551384, now seen corresponding path program 1 times [2023-12-24 06:38:15,108 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-24 06:38:15,108 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1881178677] [2023-12-24 06:38:15,109 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-24 06:38:15,109 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 [2023-12-24 06:38:15,109 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-24 06:38:15,115 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) [2023-12-24 06:38:15,116 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 [2023-12-24 06:38:16,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-24 06:38:17,049 INFO L262 TraceCheckSpWp]: Trace formula consists of 471 conjuncts, 1 conjunts are in the unsatisfiable core [2023-12-24 06:38:17,062 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-24 06:38:17,127 INFO L134 CoverageAnalysis]: Checked inductivity of 3784 backedges. 1910 proven. 0 refuted. 0 times theorem prover too weak. 1874 trivial. 0 not checked. [2023-12-24 06:38:17,127 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-24 06:38:17,128 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-24 06:38:17,128 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1881178677] [2023-12-24 06:38:17,129 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1881178677] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-24 06:38:17,129 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-24 06:38:17,129 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-24 06:38:17,130 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [300736107] [2023-12-24 06:38:17,131 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-24 06:38:17,134 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-12-24 06:38:17,134 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-24 06:38:17,159 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-12-24 06:38:17,160 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-12-24 06:38:17,164 INFO L87 Difference]: Start difference. First operand has 143 states, 96 states have (on average 1.5625) internal successors, (150), 97 states have internal predecessors, (150), 44 states have call successors, (44), 1 states have call predecessors, (44), 1 states have return successors, (44), 44 states have call predecessors, (44), 44 states have call successors, (44) Second operand has 2 states, 2 states have (on average 35.5) internal successors, (71), 2 states have internal predecessors, (71), 2 states have call successors, (44), 2 states have call predecessors, (44), 2 states have return successors, (44), 2 states have call predecessors, (44), 2 states have call successors, (44) [2023-12-24 06:38:23,112 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 5.85s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-24 06:38:23,113 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-24 06:38:23,113 INFO L93 Difference]: Finished difference Result 283 states and 518 transitions. [2023-12-24 06:38:23,746 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-12-24 06:38:23,747 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 35.5) internal successors, (71), 2 states have internal predecessors, (71), 2 states have call successors, (44), 2 states have call predecessors, (44), 2 states have return successors, (44), 2 states have call predecessors, (44), 2 states have call successors, (44) Word has length 284 [2023-12-24 06:38:23,748 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-24 06:38:23,753 INFO L225 Difference]: With dead ends: 283 [2023-12-24 06:38:23,753 INFO L226 Difference]: Without dead ends: 141 [2023-12-24 06:38:23,756 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 283 GetRequests, 283 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-12-24 06:38:23,758 INFO L413 NwaCegarLoop]: 230 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 230 SdHoareTripleChecker+Invalid, 3 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.9s IncrementalHoareTripleChecker+Time [2023-12-24 06:38:23,759 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 230 Invalid, 3 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 1 Unknown, 0 Unchecked, 5.9s Time] [2023-12-24 06:38:23,769 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 141 states. [2023-12-24 06:38:23,792 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 141 to 141. [2023-12-24 06:38:23,793 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 141 states, 95 states have (on average 1.5263157894736843) internal successors, (145), 95 states have internal predecessors, (145), 44 states have call successors, (44), 1 states have call predecessors, (44), 1 states have return successors, (44), 44 states have call predecessors, (44), 44 states have call successors, (44) [2023-12-24 06:38:23,798 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 141 states to 141 states and 233 transitions. [2023-12-24 06:38:23,799 INFO L78 Accepts]: Start accepts. Automaton has 141 states and 233 transitions. Word has length 284 [2023-12-24 06:38:23,799 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-24 06:38:23,800 INFO L495 AbstractCegarLoop]: Abstraction has 141 states and 233 transitions. [2023-12-24 06:38:23,800 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 35.5) internal successors, (71), 2 states have internal predecessors, (71), 2 states have call successors, (44), 2 states have call predecessors, (44), 2 states have return successors, (44), 2 states have call predecessors, (44), 2 states have call successors, (44) [2023-12-24 06:38:23,800 INFO L276 IsEmpty]: Start isEmpty. Operand 141 states and 233 transitions. [2023-12-24 06:38:23,804 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 285 [2023-12-24 06:38:23,805 INFO L187 NwaCegarLoop]: Found error trace [2023-12-24 06:38:23,805 INFO L195 NwaCegarLoop]: trace histogram [44, 44, 44, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-24 06:38:23,857 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 [2023-12-24 06:38:24,028 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 [2023-12-24 06:38:24,029 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-24 06:38:24,029 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-24 06:38:24,029 INFO L85 PathProgramCache]: Analyzing trace with hash 907581224, now seen corresponding path program 1 times [2023-12-24 06:38:24,030 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-24 06:38:24,030 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [284980881] [2023-12-24 06:38:24,030 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-24 06:38:24,031 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 [2023-12-24 06:38:24,031 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-24 06:38:24,032 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) [2023-12-24 06:38:24,040 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 [2023-12-24 06:38:26,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-24 06:38:26,137 INFO L262 TraceCheckSpWp]: Trace formula consists of 471 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-24 06:38:26,143 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-24 06:38:36,196 INFO L134 CoverageAnalysis]: Checked inductivity of 3784 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3784 trivial. 0 not checked. [2023-12-24 06:38:36,196 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-24 06:38:36,196 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-24 06:38:36,196 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [284980881] [2023-12-24 06:38:36,197 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [284980881] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-24 06:38:36,197 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-24 06:38:36,197 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-24 06:38:36,197 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1997844521] [2023-12-24 06:38:36,197 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-24 06:38:36,198 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-24 06:38:36,199 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-24 06:38:36,199 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-24 06:38:36,199 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-24 06:38:36,200 INFO L87 Difference]: Start difference. First operand 141 states and 233 transitions. Second operand has 4 states, 4 states have (on average 16.75) internal successors, (67), 3 states have internal predecessors, (67), 1 states have call successors, (44), 1 states have call predecessors, (44), 1 states have return successors, (44), 1 states have call predecessors, (44), 1 states have call successors, (44) [2023-12-24 06:38:42,908 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 5.85s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-24 06:38:46,925 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.02s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-24 06:38:53,419 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 5.65s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-24 06:38:57,430 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-24 06:39:01,433 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-24 06:39:01,434 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-24 06:39:01,434 INFO L93 Difference]: Finished difference Result 422 states and 698 transitions. [2023-12-24 06:39:02,111 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-24 06:39:02,112 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 16.75) internal successors, (67), 3 states have internal predecessors, (67), 1 states have call successors, (44), 1 states have call predecessors, (44), 1 states have return successors, (44), 1 states have call predecessors, (44), 1 states have call successors, (44) Word has length 284 [2023-12-24 06:39:02,113 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-24 06:39:02,115 INFO L225 Difference]: With dead ends: 422 [2023-12-24 06:39:02,115 INFO L226 Difference]: Without dead ends: 282 [2023-12-24 06:39:02,117 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 284 GetRequests, 281 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-24 06:39:02,117 INFO L413 NwaCegarLoop]: 227 mSDtfsCounter, 159 mSDsluCounter, 446 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 89 mSolverCounterUnsat, 5 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 24.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 159 SdHoareTripleChecker+Valid, 673 SdHoareTripleChecker+Invalid, 115 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 89 IncrementalHoareTripleChecker+Valid, 21 IncrementalHoareTripleChecker+Invalid, 5 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 25.0s IncrementalHoareTripleChecker+Time [2023-12-24 06:39:02,118 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [159 Valid, 673 Invalid, 115 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [89 Valid, 21 Invalid, 5 Unknown, 0 Unchecked, 25.0s Time] [2023-12-24 06:39:02,118 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 282 states. [2023-12-24 06:39:02,177 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 282 to 221. [2023-12-24 06:39:02,178 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 221 states, 130 states have (on average 1.4076923076923078) internal successors, (183), 130 states have internal predecessors, (183), 88 states have call successors, (88), 2 states have call predecessors, (88), 2 states have return successors, (88), 88 states have call predecessors, (88), 88 states have call successors, (88) [2023-12-24 06:39:02,180 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 221 states to 221 states and 359 transitions. [2023-12-24 06:39:02,180 INFO L78 Accepts]: Start accepts. Automaton has 221 states and 359 transitions. Word has length 284 [2023-12-24 06:39:02,181 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-24 06:39:02,181 INFO L495 AbstractCegarLoop]: Abstraction has 221 states and 359 transitions. [2023-12-24 06:39:02,181 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 16.75) internal successors, (67), 3 states have internal predecessors, (67), 1 states have call successors, (44), 1 states have call predecessors, (44), 1 states have return successors, (44), 1 states have call predecessors, (44), 1 states have call successors, (44) [2023-12-24 06:39:02,181 INFO L276 IsEmpty]: Start isEmpty. Operand 221 states and 359 transitions. [2023-12-24 06:39:02,184 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 286 [2023-12-24 06:39:02,184 INFO L187 NwaCegarLoop]: Found error trace [2023-12-24 06:39:02,184 INFO L195 NwaCegarLoop]: trace histogram [44, 44, 44, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-24 06:39:02,233 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Ended with exit code 0 [2023-12-24 06:39:02,385 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 [2023-12-24 06:39:02,385 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-24 06:39:02,386 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-24 06:39:02,386 INFO L85 PathProgramCache]: Analyzing trace with hash 574332462, now seen corresponding path program 1 times [2023-12-24 06:39:02,387 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-24 06:39:02,387 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [235626727] [2023-12-24 06:39:02,387 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-24 06:39:02,387 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 [2023-12-24 06:39:02,387 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-24 06:39:02,388 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) [2023-12-24 06:39:02,391 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 [2023-12-24 06:39:04,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-24 06:39:04,224 INFO L262 TraceCheckSpWp]: Trace formula consists of 473 conjuncts, 6 conjunts are in the unsatisfiable core [2023-12-24 06:39:04,233 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-24 06:39:23,190 INFO L134 CoverageAnalysis]: Checked inductivity of 3784 backedges. 1629 proven. 90 refuted. 0 times theorem prover too weak. 2065 trivial. 0 not checked. [2023-12-24 06:39:23,191 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-24 06:39:26,679 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-24 06:39:26,679 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [235626727] [2023-12-24 06:39:26,682 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [235626727] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-24 06:39:26,682 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [99256183] [2023-12-24 06:39:26,683 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-24 06:39:26,683 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-24 06:39:26,683 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 [2023-12-24 06:39:26,702 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-24 06:39:26,703 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (5)] Waiting until timeout for monitored process [2023-12-24 06:39:27,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-24 06:39:27,819 INFO L262 TraceCheckSpWp]: Trace formula consists of 473 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-24 06:39:27,824 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-24 06:39:28,751 INFO L134 CoverageAnalysis]: Checked inductivity of 3784 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3784 trivial. 0 not checked. [2023-12-24 06:39:28,752 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-24 06:39:28,752 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [99256183] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-24 06:39:28,752 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-24 06:39:28,752 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [6] total 8 [2023-12-24 06:39:28,752 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [692162743] [2023-12-24 06:39:28,752 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-24 06:39:28,753 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-24 06:39:28,753 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-24 06:39:28,754 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-24 06:39:28,754 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2023-12-24 06:39:28,754 INFO L87 Difference]: Start difference. First operand 221 states and 359 transitions. Second operand has 3 states, 3 states have (on average 22.666666666666668) internal successors, (68), 3 states have internal predecessors, (68), 1 states have call successors, (44), 1 states have call predecessors, (44), 1 states have return successors, (44), 1 states have call predecessors, (44), 1 states have call successors, (44) [2023-12-24 06:39:34,539 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 5.25s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-24 06:39:40,235 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 5.70s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-24 06:39:41,765 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.53s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-24 06:39:47,976 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 5.77s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-24 06:39:51,979 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-24 06:39:55,991 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-24 06:39:56,828 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-24 06:39:56,829 INFO L93 Difference]: Finished difference Result 488 states and 797 transitions. [2023-12-24 06:39:56,829 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-24 06:39:56,830 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 22.666666666666668) internal successors, (68), 3 states have internal predecessors, (68), 1 states have call successors, (44), 1 states have call predecessors, (44), 1 states have return successors, (44), 1 states have call predecessors, (44), 1 states have call successors, (44) Word has length 285 [2023-12-24 06:39:56,831 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-24 06:39:56,833 INFO L225 Difference]: With dead ends: 488 [2023-12-24 06:39:56,834 INFO L226 Difference]: Without dead ends: 348 [2023-12-24 06:39:56,834 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 774 GetRequests, 766 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2023-12-24 06:39:56,836 INFO L413 NwaCegarLoop]: 373 mSDtfsCounter, 185 mSDsluCounter, 195 mSDsCounter, 0 mSdLazyCounter, 32 mSolverCounterSat, 17 mSolverCounterUnsat, 5 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 26.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 185 SdHoareTripleChecker+Valid, 568 SdHoareTripleChecker+Invalid, 54 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 32 IncrementalHoareTripleChecker+Invalid, 5 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 28.0s IncrementalHoareTripleChecker+Time [2023-12-24 06:39:56,836 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [185 Valid, 568 Invalid, 54 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 32 Invalid, 5 Unknown, 0 Unchecked, 28.0s Time] [2023-12-24 06:39:56,837 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 348 states. [2023-12-24 06:39:56,872 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 348 to 259. [2023-12-24 06:39:56,873 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 259 states, 168 states have (on average 1.4345238095238095) internal successors, (241), 168 states have internal predecessors, (241), 88 states have call successors, (88), 2 states have call predecessors, (88), 2 states have return successors, (88), 88 states have call predecessors, (88), 88 states have call successors, (88) [2023-12-24 06:39:56,876 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 259 states to 259 states and 417 transitions. [2023-12-24 06:39:56,876 INFO L78 Accepts]: Start accepts. Automaton has 259 states and 417 transitions. Word has length 285 [2023-12-24 06:39:56,877 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-24 06:39:56,877 INFO L495 AbstractCegarLoop]: Abstraction has 259 states and 417 transitions. [2023-12-24 06:39:56,877 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 22.666666666666668) internal successors, (68), 3 states have internal predecessors, (68), 1 states have call successors, (44), 1 states have call predecessors, (44), 1 states have return successors, (44), 1 states have call predecessors, (44), 1 states have call successors, (44) [2023-12-24 06:39:56,878 INFO L276 IsEmpty]: Start isEmpty. Operand 259 states and 417 transitions. [2023-12-24 06:39:56,883 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 286 [2023-12-24 06:39:56,884 INFO L187 NwaCegarLoop]: Found error trace [2023-12-24 06:39:56,884 INFO L195 NwaCegarLoop]: trace histogram [44, 44, 44, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-24 06:39:56,929 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2023-12-24 06:39:57,106 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (5)] Ended with exit code 0 [2023-12-24 06:39:57,299 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=3,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt [2023-12-24 06:39:57,299 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-24 06:39:57,300 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-24 06:39:57,300 INFO L85 PathProgramCache]: Analyzing trace with hash 566765548, now seen corresponding path program 1 times [2023-12-24 06:39:57,301 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-24 06:39:57,301 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1126113179] [2023-12-24 06:39:57,301 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-24 06:39:57,301 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 [2023-12-24 06:39:57,301 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-24 06:39:57,302 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) [2023-12-24 06:39:57,303 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2023-12-24 06:39:59,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-24 06:39:59,208 INFO L262 TraceCheckSpWp]: Trace formula consists of 472 conjuncts, 6 conjunts are in the unsatisfiable core [2023-12-24 06:39:59,213 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-24 06:40:18,888 INFO L134 CoverageAnalysis]: Checked inductivity of 3784 backedges. 1629 proven. 90 refuted. 0 times theorem prover too weak. 2065 trivial. 0 not checked. [2023-12-24 06:40:18,889 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-24 06:40:22,416 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-24 06:40:22,416 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1126113179] [2023-12-24 06:40:22,417 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1126113179] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-24 06:40:22,417 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [2117627951] [2023-12-24 06:40:22,417 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-24 06:40:22,417 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-24 06:40:22,417 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 [2023-12-24 06:40:22,419 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-24 06:40:22,422 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (7)] Waiting until timeout for monitored process [2023-12-24 06:40:23,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-24 06:40:23,520 INFO L262 TraceCheckSpWp]: Trace formula consists of 472 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-24 06:40:23,523 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-24 06:40:24,818 INFO L134 CoverageAnalysis]: Checked inductivity of 3784 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3784 trivial. 0 not checked. [2023-12-24 06:40:24,818 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-24 06:40:24,818 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [2117627951] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-24 06:40:24,818 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-24 06:40:24,819 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [6] total 8 [2023-12-24 06:40:24,819 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [911232450] [2023-12-24 06:40:24,819 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-24 06:40:24,819 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-24 06:40:24,819 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-24 06:40:24,820 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-24 06:40:24,820 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2023-12-24 06:40:24,820 INFO L87 Difference]: Start difference. First operand 259 states and 417 transitions. Second operand has 3 states, 3 states have (on average 22.666666666666668) internal successors, (68), 3 states have internal predecessors, (68), 1 states have call successors, (44), 1 states have call predecessors, (44), 1 states have return successors, (44), 1 states have call predecessors, (44), 1 states have call successors, (44) [2023-12-24 06:40:30,465 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 5.26s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-24 06:40:36,091 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 5.63s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-24 06:40:43,711 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 5.75s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-24 06:40:50,175 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 5.76s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-24 06:40:54,191 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.02s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-24 06:40:54,928 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-24 06:40:54,929 INFO L93 Difference]: Finished difference Result 526 states and 846 transitions. [2023-12-24 06:40:54,938 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-24 06:40:54,938 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 22.666666666666668) internal successors, (68), 3 states have internal predecessors, (68), 1 states have call successors, (44), 1 states have call predecessors, (44), 1 states have return successors, (44), 1 states have call predecessors, (44), 1 states have call successors, (44) Word has length 285 [2023-12-24 06:40:54,939 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-24 06:40:54,944 INFO L225 Difference]: With dead ends: 526 [2023-12-24 06:40:54,944 INFO L226 Difference]: Without dead ends: 348 [2023-12-24 06:40:54,945 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 774 GetRequests, 766 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2023-12-24 06:40:54,947 INFO L413 NwaCegarLoop]: 213 mSDtfsCounter, 186 mSDsluCounter, 191 mSDsCounter, 0 mSdLazyCounter, 28 mSolverCounterSat, 10 mSolverCounterUnsat, 5 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 27.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 186 SdHoareTripleChecker+Valid, 404 SdHoareTripleChecker+Invalid, 43 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 28 IncrementalHoareTripleChecker+Invalid, 5 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 30.1s IncrementalHoareTripleChecker+Time [2023-12-24 06:40:54,948 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [186 Valid, 404 Invalid, 43 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 28 Invalid, 5 Unknown, 0 Unchecked, 30.1s Time] [2023-12-24 06:40:54,954 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 348 states. [2023-12-24 06:40:55,004 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 348 to 259. [2023-12-24 06:40:55,005 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 259 states, 168 states have (on average 1.380952380952381) internal successors, (232), 168 states have internal predecessors, (232), 88 states have call successors, (88), 2 states have call predecessors, (88), 2 states have return successors, (88), 88 states have call predecessors, (88), 88 states have call successors, (88) [2023-12-24 06:40:55,007 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 259 states to 259 states and 408 transitions. [2023-12-24 06:40:55,007 INFO L78 Accepts]: Start accepts. Automaton has 259 states and 408 transitions. Word has length 285 [2023-12-24 06:40:55,008 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-24 06:40:55,008 INFO L495 AbstractCegarLoop]: Abstraction has 259 states and 408 transitions. [2023-12-24 06:40:55,008 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 22.666666666666668) internal successors, (68), 3 states have internal predecessors, (68), 1 states have call successors, (44), 1 states have call predecessors, (44), 1 states have return successors, (44), 1 states have call predecessors, (44), 1 states have call successors, (44) [2023-12-24 06:40:55,008 INFO L276 IsEmpty]: Start isEmpty. Operand 259 states and 408 transitions. [2023-12-24 06:40:55,010 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 286 [2023-12-24 06:40:55,010 INFO L187 NwaCegarLoop]: Found error trace [2023-12-24 06:40:55,011 INFO L195 NwaCegarLoop]: trace histogram [44, 44, 44, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-24 06:40:55,021 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (7)] Ended with exit code 0 [2023-12-24 06:40:55,265 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 [2023-12-24 06:40:55,424 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt,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 [2023-12-24 06:40:55,424 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-24 06:40:55,424 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-24 06:40:55,427 INFO L85 PathProgramCache]: Analyzing trace with hash 2069211254, now seen corresponding path program 1 times [2023-12-24 06:40:55,427 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-24 06:40:55,427 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [527250528] [2023-12-24 06:40:55,428 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-24 06:40:55,428 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 [2023-12-24 06:40:55,428 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-24 06:40:55,429 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) [2023-12-24 06:40:55,430 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 [2023-12-24 06:40:57,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-24 06:40:57,389 INFO L262 TraceCheckSpWp]: Trace formula consists of 473 conjuncts, 6 conjunts are in the unsatisfiable core [2023-12-24 06:40:57,394 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-24 06:41:16,479 INFO L134 CoverageAnalysis]: Checked inductivity of 3784 backedges. 1629 proven. 90 refuted. 0 times theorem prover too weak. 2065 trivial. 0 not checked. [2023-12-24 06:41:16,479 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-24 06:41:19,862 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-24 06:41:19,863 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [527250528] [2023-12-24 06:41:19,863 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [527250528] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-24 06:41:19,863 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [619406795] [2023-12-24 06:41:19,863 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-24 06:41:19,863 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-24 06:41:19,863 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 [2023-12-24 06:41:19,864 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-24 06:41:19,865 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (9)] Waiting until timeout for monitored process [2023-12-24 06:41:23,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-24 06:41:23,456 INFO L262 TraceCheckSpWp]: Trace formula consists of 473 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-24 06:41:23,460 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-24 06:41:34,974 INFO L134 CoverageAnalysis]: Checked inductivity of 3784 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3784 trivial. 0 not checked. [2023-12-24 06:41:34,974 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-24 06:41:34,974 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [619406795] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-24 06:41:34,974 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-24 06:41:34,975 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [6] total 7 [2023-12-24 06:41:34,975 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1483186151] [2023-12-24 06:41:34,975 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-24 06:41:34,975 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-24 06:41:34,975 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-24 06:41:34,978 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-24 06:41:34,978 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2023-12-24 06:41:34,978 INFO L87 Difference]: Start difference. First operand 259 states and 408 transitions. Second operand has 3 states, 3 states have (on average 22.666666666666668) internal successors, (68), 2 states have internal predecessors, (68), 1 states have call successors, (44), 1 states have call predecessors, (44), 1 states have return successors, (44), 1 states have call predecessors, (44), 1 states have call successors, (44) [2023-12-24 06:41:41,640 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 5.92s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-24 06:41:45,655 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-24 06:41:49,679 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.02s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-24 06:41:50,404 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-24 06:41:50,405 INFO L93 Difference]: Finished difference Result 616 states and 971 transitions. [2023-12-24 06:41:50,408 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-24 06:41:50,409 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 22.666666666666668) internal successors, (68), 2 states have internal predecessors, (68), 1 states have call successors, (44), 1 states have call predecessors, (44), 1 states have return successors, (44), 1 states have call predecessors, (44), 1 states have call successors, (44) Word has length 285 [2023-12-24 06:41:50,411 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-24 06:41:50,417 INFO L225 Difference]: With dead ends: 616 [2023-12-24 06:41:50,417 INFO L226 Difference]: Without dead ends: 438 [2023-12-24 06:41:50,418 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 774 GetRequests, 766 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2023-12-24 06:41:50,420 INFO L413 NwaCegarLoop]: 219 mSDtfsCounter, 92 mSDsluCounter, 215 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 0 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 14.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 92 SdHoareTripleChecker+Valid, 434 SdHoareTripleChecker+Invalid, 22 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 15.4s IncrementalHoareTripleChecker+Time [2023-12-24 06:41:50,421 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [92 Valid, 434 Invalid, 22 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 19 Invalid, 3 Unknown, 0 Unchecked, 15.4s Time] [2023-12-24 06:41:50,422 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 438 states. [2023-12-24 06:41:50,472 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 438 to 434. [2023-12-24 06:41:50,473 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 434 states, 298 states have (on average 1.4060402684563758) internal successors, (419), 298 states have internal predecessors, (419), 132 states have call successors, (132), 3 states have call predecessors, (132), 3 states have return successors, (132), 132 states have call predecessors, (132), 132 states have call successors, (132) [2023-12-24 06:41:50,475 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 434 states to 434 states and 683 transitions. [2023-12-24 06:41:50,475 INFO L78 Accepts]: Start accepts. Automaton has 434 states and 683 transitions. Word has length 285 [2023-12-24 06:41:50,475 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-24 06:41:50,476 INFO L495 AbstractCegarLoop]: Abstraction has 434 states and 683 transitions. [2023-12-24 06:41:50,476 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 22.666666666666668) internal successors, (68), 2 states have internal predecessors, (68), 1 states have call successors, (44), 1 states have call predecessors, (44), 1 states have return successors, (44), 1 states have call predecessors, (44), 1 states have call successors, (44) [2023-12-24 06:41:50,476 INFO L276 IsEmpty]: Start isEmpty. Operand 434 states and 683 transitions. [2023-12-24 06:41:50,477 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 286 [2023-12-24 06:41:50,477 INFO L187 NwaCegarLoop]: Found error trace [2023-12-24 06:41:50,477 INFO L195 NwaCegarLoop]: trace histogram [44, 44, 44, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-24 06:41:50,507 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (9)] Forceful destruction successful, exit code 0 [2023-12-24 06:41:50,730 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (8)] Ended with exit code 0 [2023-12-24 06:41:50,884 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt,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 [2023-12-24 06:41:50,885 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-24 06:41:50,885 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-24 06:41:50,885 INFO L85 PathProgramCache]: Analyzing trace with hash 1935197748, now seen corresponding path program 1 times [2023-12-24 06:41:50,886 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-24 06:41:50,886 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1616201149] [2023-12-24 06:41:50,886 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-24 06:41:50,886 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 [2023-12-24 06:41:50,886 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-24 06:41:50,887 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) [2023-12-24 06:41:50,888 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 [2023-12-24 06:41:52,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-24 06:41:52,798 INFO L262 TraceCheckSpWp]: Trace formula consists of 473 conjuncts, 6 conjunts are in the unsatisfiable core [2023-12-24 06:41:52,803 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-24 06:42:12,067 INFO L134 CoverageAnalysis]: Checked inductivity of 3784 backedges. 1629 proven. 90 refuted. 0 times theorem prover too weak. 2065 trivial. 0 not checked. [2023-12-24 06:42:12,068 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-24 06:42:15,619 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-24 06:42:15,619 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1616201149] [2023-12-24 06:42:15,619 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1616201149] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-24 06:42:15,619 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1041915339] [2023-12-24 06:42:15,620 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-24 06:42:15,620 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-24 06:42:15,620 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 [2023-12-24 06:42:15,621 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-24 06:42:15,625 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (11)] Waiting until timeout for monitored process [2023-12-24 06:42:20,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-24 06:42:20,273 INFO L262 TraceCheckSpWp]: Trace formula consists of 473 conjuncts, 7 conjunts are in the unsatisfiable core [2023-12-24 06:42:20,277 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-24 06:42:39,609 INFO L134 CoverageAnalysis]: Checked inductivity of 3784 backedges. 1629 proven. 90 refuted. 0 times theorem prover too weak. 2065 trivial. 0 not checked. [2023-12-24 06:42:39,609 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-24 06:42:42,747 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1041915339] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-24 06:42:42,748 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-24 06:42:42,748 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 6 [2023-12-24 06:42:42,748 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1543534948] [2023-12-24 06:42:42,748 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-24 06:42:42,749 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-24 06:42:42,749 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-24 06:42:42,749 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-24 06:42:42,749 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2023-12-24 06:42:42,749 INFO L87 Difference]: Start difference. First operand 434 states and 683 transitions. Second operand has 7 states, 7 states have (on average 10.571428571428571) internal successors, (74), 6 states have internal predecessors, (74), 2 states have call successors, (44), 2 states have call predecessors, (44), 3 states have return successors, (44), 2 states have call predecessors, (44), 2 states have call successors, (44) [2023-12-24 06:42:56,819 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 5.73s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-24 06:43:00,884 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.06s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-24 06:43:04,940 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.06s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-24 06:43:08,964 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.02s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-24 06:43:15,747 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 5.86s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-24 06:43:19,788 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.04s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-24 06:43:23,793 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-24 06:43:27,803 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-24 06:43:31,820 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.02s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-24 06:43:35,821 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-24 06:43:35,822 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-24 06:43:35,822 INFO L93 Difference]: Finished difference Result 988 states and 1550 transitions. [2023-12-24 06:43:36,561 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-12-24 06:43:36,562 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 10.571428571428571) internal successors, (74), 6 states have internal predecessors, (74), 2 states have call successors, (44), 2 states have call predecessors, (44), 3 states have return successors, (44), 2 states have call predecessors, (44), 2 states have call successors, (44) Word has length 285 [2023-12-24 06:43:36,562 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-24 06:43:36,565 INFO L225 Difference]: With dead ends: 988 [2023-12-24 06:43:36,565 INFO L226 Difference]: Without dead ends: 636 [2023-12-24 06:43:36,566 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 987 GetRequests, 973 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 3.1s TimeCoverageRelationStatistics Valid=88, Invalid=152, Unknown=0, NotChecked=0, Total=240 [2023-12-24 06:43:36,566 INFO L413 NwaCegarLoop]: 169 mSDtfsCounter, 263 mSDsluCounter, 674 mSDsCounter, 0 mSdLazyCounter, 280 mSolverCounterSat, 125 mSolverCounterUnsat, 10 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 50.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 263 SdHoareTripleChecker+Valid, 843 SdHoareTripleChecker+Invalid, 415 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 125 IncrementalHoareTripleChecker+Valid, 280 IncrementalHoareTripleChecker+Invalid, 10 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 51.2s IncrementalHoareTripleChecker+Time [2023-12-24 06:43:36,567 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [263 Valid, 843 Invalid, 415 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [125 Valid, 280 Invalid, 10 Unknown, 0 Unchecked, 51.2s Time] [2023-12-24 06:43:36,567 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 636 states. [2023-12-24 06:43:36,612 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 636 to 450. [2023-12-24 06:43:36,612 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 450 states, 313 states have (on average 1.4121405750798721) internal successors, (442), 313 states have internal predecessors, (442), 132 states have call successors, (132), 4 states have call predecessors, (132), 4 states have return successors, (132), 132 states have call predecessors, (132), 132 states have call successors, (132) [2023-12-24 06:43:36,616 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 450 states to 450 states and 706 transitions. [2023-12-24 06:43:36,617 INFO L78 Accepts]: Start accepts. Automaton has 450 states and 706 transitions. Word has length 285 [2023-12-24 06:43:36,622 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-24 06:43:36,622 INFO L495 AbstractCegarLoop]: Abstraction has 450 states and 706 transitions. [2023-12-24 06:43:36,622 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 10.571428571428571) internal successors, (74), 6 states have internal predecessors, (74), 2 states have call successors, (44), 2 states have call predecessors, (44), 3 states have return successors, (44), 2 states have call predecessors, (44), 2 states have call successors, (44) [2023-12-24 06:43:36,622 INFO L276 IsEmpty]: Start isEmpty. Operand 450 states and 706 transitions. [2023-12-24 06:43:36,625 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 286 [2023-12-24 06:43:36,625 INFO L187 NwaCegarLoop]: Found error trace [2023-12-24 06:43:36,626 INFO L195 NwaCegarLoop]: trace histogram [44, 44, 44, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-24 06:43:36,651 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (11)] Ended with exit code 0 [2023-12-24 06:43:36,898 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 [2023-12-24 06:43:37,051 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt,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 [2023-12-24 06:43:37,052 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-24 06:43:37,052 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-24 06:43:37,052 INFO L85 PathProgramCache]: Analyzing trace with hash 1957830002, now seen corresponding path program 1 times [2023-12-24 06:43:37,053 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-24 06:43:37,053 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [457634421] [2023-12-24 06:43:37,053 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-24 06:43:37,053 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 [2023-12-24 06:43:37,053 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-24 06:43:37,054 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) [2023-12-24 06:43:37,056 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (12)] Waiting until timeout for monitored process [2023-12-24 06:43:38,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-24 06:43:38,985 INFO L262 TraceCheckSpWp]: Trace formula consists of 473 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-24 06:43:38,989 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-24 06:43:51,218 INFO L134 CoverageAnalysis]: Checked inductivity of 3784 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3784 trivial. 0 not checked. [2023-12-24 06:43:51,218 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-24 06:43:51,218 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-24 06:43:51,218 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [457634421] [2023-12-24 06:43:51,219 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [457634421] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-24 06:43:51,219 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-24 06:43:51,219 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-24 06:43:51,219 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [99196246] [2023-12-24 06:43:51,219 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-24 06:43:51,219 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-24 06:43:51,219 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-24 06:43:51,220 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-24 06:43:51,220 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-24 06:43:51,220 INFO L87 Difference]: Start difference. First operand 450 states and 706 transitions. Second operand has 4 states, 4 states have (on average 17.0) internal successors, (68), 3 states have internal predecessors, (68), 1 states have call successors, (44), 1 states have call predecessors, (44), 1 states have return successors, (44), 1 states have call predecessors, (44), 1 states have call successors, (44) [2023-12-24 06:43:56,649 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 5.28s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-24 06:44:00,482 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.71s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-24 06:44:04,580 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.06s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-24 06:44:10,491 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 5.85s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-24 06:44:14,537 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.05s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-24 06:44:18,562 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.02s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-24 06:44:22,566 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-24 06:44:26,596 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.03s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-24 06:44:32,567 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 5.23s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-24 06:44:32,568 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-24 06:44:32,568 INFO L93 Difference]: Finished difference Result 1154 states and 1816 transitions. [2023-12-24 06:44:33,044 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-24 06:44:33,044 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 17.0) internal successors, (68), 3 states have internal predecessors, (68), 1 states have call successors, (44), 1 states have call predecessors, (44), 1 states have return successors, (44), 1 states have call predecessors, (44), 1 states have call successors, (44) Word has length 285 [2023-12-24 06:44:33,045 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-24 06:44:33,048 INFO L225 Difference]: With dead ends: 1154 [2023-12-24 06:44:33,048 INFO L226 Difference]: Without dead ends: 802 [2023-12-24 06:44:33,049 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 285 GetRequests, 282 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-24 06:44:33,050 INFO L413 NwaCegarLoop]: 219 mSDtfsCounter, 121 mSDsluCounter, 435 mSDsCounter, 0 mSdLazyCounter, 24 mSolverCounterSat, 1 mSolverCounterUnsat, 8 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 39.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 121 SdHoareTripleChecker+Valid, 654 SdHoareTripleChecker+Invalid, 33 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 24 IncrementalHoareTripleChecker+Invalid, 8 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 41.2s IncrementalHoareTripleChecker+Time [2023-12-24 06:44:33,050 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [121 Valid, 654 Invalid, 33 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 24 Invalid, 8 Unknown, 0 Unchecked, 41.2s Time] [2023-12-24 06:44:33,051 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 802 states. [2023-12-24 06:44:33,088 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 802 to 798. [2023-12-24 06:44:33,090 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 798 states, 571 states have (on average 1.4185639229422067) internal successors, (810), 571 states have internal predecessors, (810), 220 states have call successors, (220), 6 states have call predecessors, (220), 6 states have return successors, (220), 220 states have call predecessors, (220), 220 states have call successors, (220) [2023-12-24 06:44:33,093 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 798 states to 798 states and 1250 transitions. [2023-12-24 06:44:33,093 INFO L78 Accepts]: Start accepts. Automaton has 798 states and 1250 transitions. Word has length 285 [2023-12-24 06:44:33,094 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-24 06:44:33,094 INFO L495 AbstractCegarLoop]: Abstraction has 798 states and 1250 transitions. [2023-12-24 06:44:33,094 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 17.0) internal successors, (68), 3 states have internal predecessors, (68), 1 states have call successors, (44), 1 states have call predecessors, (44), 1 states have return successors, (44), 1 states have call predecessors, (44), 1 states have call successors, (44) [2023-12-24 06:44:33,094 INFO L276 IsEmpty]: Start isEmpty. Operand 798 states and 1250 transitions. [2023-12-24 06:44:33,096 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 286 [2023-12-24 06:44:33,096 INFO L187 NwaCegarLoop]: Found error trace [2023-12-24 06:44:33,096 INFO L195 NwaCegarLoop]: trace histogram [44, 44, 44, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-24 06:44:33,146 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 [2023-12-24 06:44:33,309 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 [2023-12-24 06:44:33,310 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-24 06:44:33,310 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-24 06:44:33,311 INFO L85 PathProgramCache]: Analyzing trace with hash 369482100, now seen corresponding path program 1 times [2023-12-24 06:44:33,311 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-24 06:44:33,311 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [897580985] [2023-12-24 06:44:33,311 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-24 06:44:33,311 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 [2023-12-24 06:44:33,312 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-24 06:44:33,313 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) [2023-12-24 06:44:33,340 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 [2023-12-24 06:44:35,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-24 06:44:35,336 INFO L262 TraceCheckSpWp]: Trace formula consists of 472 conjuncts, 20 conjunts are in the unsatisfiable core [2023-12-24 06:44:35,340 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-24 06:45:36,525 INFO L134 CoverageAnalysis]: Checked inductivity of 3784 backedges. 2060 proven. 273 refuted. 0 times theorem prover too weak. 1451 trivial. 0 not checked. [2023-12-24 06:45:36,526 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-24 06:47:21,964 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-24 06:47:21,964 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [897580985] [2023-12-24 06:47:21,964 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [897580985] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-24 06:47:21,964 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [2057341995] [2023-12-24 06:47:21,964 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-24 06:47:21,964 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-24 06:47:21,965 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 [2023-12-24 06:47:21,966 INFO L229 MonitoredProcess]: Starting monitored process 14 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-24 06:47:21,983 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (14)] Waiting until timeout for monitored process [2023-12-24 06:47:27,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-24 06:47:27,846 INFO L262 TraceCheckSpWp]: Trace formula consists of 472 conjuncts, 28 conjunts are in the unsatisfiable core [2023-12-24 06:47:27,851 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-24 06:49:27,970 INFO L134 CoverageAnalysis]: Checked inductivity of 3784 backedges. 2275 proven. 321 refuted. 0 times theorem prover too weak. 1188 trivial. 0 not checked. [2023-12-24 06:49:27,971 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-24 06:50:46,620 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [2057341995] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-24 06:50:46,620 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-24 06:50:46,620 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 27] total 43 [2023-12-24 06:50:46,620 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1210560859] [2023-12-24 06:50:46,620 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-24 06:50:46,621 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 44 states [2023-12-24 06:50:46,621 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-24 06:50:46,622 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 44 interpolants. [2023-12-24 06:50:46,622 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=425, Invalid=2997, Unknown=0, NotChecked=0, Total=3422 [2023-12-24 06:50:46,623 INFO L87 Difference]: Start difference. First operand 798 states and 1250 transitions. Second operand has 44 states, 44 states have (on average 3.909090909090909) internal successors, (172), 41 states have internal predecessors, (172), 11 states have call successors, (88), 11 states have call predecessors, (88), 18 states have return successors, (88), 11 states have call predecessors, (88), 11 states have call successors, (88) Received shutdown request... [2023-12-24 06:52:22,934 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 [2023-12-24 06:52:22,935 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 (13)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2023-12-24 06:52:22,938 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (14)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2023-12-24 06:52:23,428 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2023-12-24 06:52:23,430 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 818 GetRequests, 733 SyntacticMatches, 0 SemanticMatches, 84 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2284 ImplicationChecksByTransitivity, 194.8s TimeCoverageRelationStatistics Valid=1198, Invalid=6112, Unknown=0, NotChecked=0, Total=7310 [2023-12-24 06:52:23,431 INFO L413 NwaCegarLoop]: 76 mSDtfsCounter, 168 mSDsluCounter, 606 mSDsCounter, 0 mSdLazyCounter, 1588 mSolverCounterSat, 287 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 62.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 168 SdHoareTripleChecker+Valid, 682 SdHoareTripleChecker+Invalid, 1875 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 287 IncrementalHoareTripleChecker+Valid, 1588 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 65.5s IncrementalHoareTripleChecker+Time [2023-12-24 06:52:23,431 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [168 Valid, 682 Invalid, 1875 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [287 Valid, 1588 Invalid, 0 Unknown, 0 Unchecked, 65.5s Time] [2023-12-24 06:52:23,432 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-12-24 06:52:23,458 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (14)] Forceful destruction successful, exit code 0 [2023-12-24 06:52:23,685 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (13)] Forceful destruction successful, exit code 0 [2023-12-24 06:52:23,839 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt,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 [2023-12-24 06:52:23,840 WARN L619 AbstractCegarLoop]: Verification canceled: while NwaCegarLoop was constructing difference of abstraction (798states) and FLOYD_HOARE automaton (currently 29 states, 44 states before enhancement),while PredicateComparison was comparing new predicate (quantified with 0quantifier alternations) to 86 known predicates. [2023-12-24 06:52:23,843 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1] [2023-12-24 06:52:23,846 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2023-12-24 06:52:23,852 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.12 06:52:23 BoogieIcfgContainer [2023-12-24 06:52:23,852 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-12-24 06:52:23,852 INFO L158 Benchmark]: Toolchain (without parser) took 880538.08ms. Allocated memory is still 254.8MB. Free memory was 216.3MB in the beginning and 193.7MB in the end (delta: 22.6MB). Peak memory consumption was 23.3MB. Max. memory is 8.0GB. [2023-12-24 06:52:23,853 INFO L158 Benchmark]: CDTParser took 0.13ms. Allocated memory is still 185.6MB. Free memory was 130.1MB in the beginning and 130.0MB in the end (delta: 181.8kB). There was no memory consumed. Max. memory is 8.0GB. [2023-12-24 06:52:23,853 INFO L158 Benchmark]: CACSL2BoogieTranslator took 295.69ms. Allocated memory is still 254.8MB. Free memory was 215.9MB in the beginning and 190.8MB in the end (delta: 25.2MB). Peak memory consumption was 25.2MB. Max. memory is 8.0GB. [2023-12-24 06:52:23,853 INFO L158 Benchmark]: Boogie Procedure Inliner took 50.33ms. Allocated memory is still 254.8MB. Free memory was 190.8MB in the beginning and 186.0MB in the end (delta: 4.8MB). Peak memory consumption was 5.2MB. Max. memory is 8.0GB. [2023-12-24 06:52:23,853 INFO L158 Benchmark]: Boogie Preprocessor took 86.37ms. Allocated memory is still 254.8MB. Free memory was 186.0MB in the beginning and 176.6MB in the end (delta: 9.4MB). Peak memory consumption was 9.4MB. Max. memory is 8.0GB. [2023-12-24 06:52:23,853 INFO L158 Benchmark]: RCFGBuilder took 31227.39ms. Allocated memory is still 254.8MB. Free memory was 176.6MB in the beginning and 211.4MB in the end (delta: -34.7MB). Peak memory consumption was 51.2MB. Max. memory is 8.0GB. [2023-12-24 06:52:23,853 INFO L158 Benchmark]: TraceAbstraction took 848873.88ms. Allocated memory is still 254.8MB. Free memory was 210.8MB in the beginning and 193.7MB in the end (delta: 17.2MB). Peak memory consumption was 17.2MB. Max. memory is 8.0GB. [2023-12-24 06:52:23,854 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.13ms. Allocated memory is still 185.6MB. Free memory was 130.1MB in the beginning and 130.0MB in the end (delta: 181.8kB). There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 295.69ms. Allocated memory is still 254.8MB. Free memory was 215.9MB in the beginning and 190.8MB in the end (delta: 25.2MB). Peak memory consumption was 25.2MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 50.33ms. Allocated memory is still 254.8MB. Free memory was 190.8MB in the beginning and 186.0MB in the end (delta: 4.8MB). Peak memory consumption was 5.2MB. Max. memory is 8.0GB. * Boogie Preprocessor took 86.37ms. Allocated memory is still 254.8MB. Free memory was 186.0MB in the beginning and 176.6MB in the end (delta: 9.4MB). Peak memory consumption was 9.4MB. Max. memory is 8.0GB. * RCFGBuilder took 31227.39ms. Allocated memory is still 254.8MB. Free memory was 176.6MB in the beginning and 211.4MB in the end (delta: -34.7MB). Peak memory consumption was 51.2MB. Max. memory is 8.0GB. * TraceAbstraction took 848873.88ms. Allocated memory is still 254.8MB. Free memory was 210.8MB in the beginning and 193.7MB in the end (delta: 17.2MB). Peak memory consumption was 17.2MB. 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: 19]: Timeout (TraceAbstraction) Unable to prove that a call to reach_error is unreachable (line 19). Cancelled while NwaCegarLoop was constructing difference of abstraction (798states) and FLOYD_HOARE automaton (currently 29 states, 44 states before enhancement),while PredicateComparison was comparing new predicate (quantified with 0quantifier alternations) to 86 known predicates. - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 143 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 848.8s, OverallIterations: 8, TraceHistogramMax: 44, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.1s, AutomataDifference: 298.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 37 mSolverCounterUnknown, 1174 SdHoareTripleChecker+Valid, 262.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 1174 mSDsluCounter, 4488 SdHoareTripleChecker+Invalid, 250.9s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 2762 mSDsCounter, 529 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 1994 IncrementalHoareTripleChecker+Invalid, 2560 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 529 mSolverCounterUnsat, 1726 mSDtfsCounter, 1994 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 37 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 4979 GetRequests, 4850 SyntacticMatches, 0 SemanticMatches, 128 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2353 ImplicationChecksByTransitivity, 203.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=798occurred in iteration=7, InterpolantAutomatonStates: 29, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.3s AutomataMinimizationTime, 7 MinimizatonAttempts, 433 StatesRemovedByMinimization, 6 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.5s SsaConstructionTime, 29.8s SatisfiabilityAnalysisTime, 516.0s InterpolantComputationTime, 3703 NumberOfCodeBlocks, 3703 NumberOfCodeBlocksAsserted, 13 NumberOfCheckSat, 3690 ConstructedInterpolants, 42 QuantifiedInterpolants, 24960 SizeOfPredicates, 61 NumberOfNonLiveVariables, 6141 ConjunctsInSsa, 92 ConjunctsInUnsatCore, 13 InterpolantComputations, 6 PerfectInterpolantSequences, 48148/49192 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