/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_amount500_file-97.i -------------------------------------------------------------------------------- This is Ultimate 0.2.4-tmp.fs.bitabs-eval-d9c3e40-m [2023-12-24 10:19:52,544 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-24 10:19:52,600 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 10:19:52,606 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-24 10:19:52,607 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-24 10:19:52,636 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-24 10:19:52,637 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-24 10:19:52,637 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-24 10:19:52,638 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-12-24 10:19:52,641 INFO L153 SettingsManager]: * Use memory slicer=true [2023-12-24 10:19:52,641 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-24 10:19:52,641 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-24 10:19:52,642 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-24 10:19:52,643 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-24 10:19:52,643 INFO L153 SettingsManager]: * Use SBE=true [2023-12-24 10:19:52,643 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-24 10:19:52,643 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-24 10:19:52,644 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-24 10:19:52,644 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-24 10:19:52,645 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-24 10:19:52,645 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-24 10:19:52,645 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-24 10:19:52,645 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-24 10:19:52,645 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-12-24 10:19:52,645 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-12-24 10:19:52,646 INFO L153 SettingsManager]: * Allow undefined functions=false [2023-12-24 10:19:52,646 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-12-24 10:19:52,646 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-24 10:19:52,646 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-24 10:19:52,646 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-24 10:19:52,647 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-24 10:19:52,647 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-12-24 10:19:52,647 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-12-24 10:19:52,647 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-24 10:19:52,647 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-24 10:19:52,648 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-24 10:19:52,648 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-24 10:19:52,648 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-24 10:19:52,648 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2023-12-24 10:19:52,648 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-12-24 10:19:52,648 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-24 10:19:52,648 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-12-24 10:19:52,648 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-24 10:19:52,648 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-12-24 10:19:52,649 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-24 10:19:52,649 INFO L153 SettingsManager]: * Logic for external solver=AUFBV [2023-12-24 10:19:52,649 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2023-12-24 10:19:52,851 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-24 10:19:52,880 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-24 10:19:52,883 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-24 10:19:52,884 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-24 10:19:52,884 INFO L274 PluginConnector]: CDTParser initialized [2023-12-24 10:19:52,886 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/hardness-nfm22/hardness_operatoramount_amount500_file-97.i [2023-12-24 10:19:53,970 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-24 10:19:54,206 INFO L384 CDTParser]: Found 1 translation units. [2023-12-24 10:19:54,206 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/hardness-nfm22/hardness_operatoramount_amount500_file-97.i [2023-12-24 10:19:54,219 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c55f93a6b/9b23d1d8950448a1979e332bd4006ed5/FLAG635eaac8b [2023-12-24 10:19:54,230 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c55f93a6b/9b23d1d8950448a1979e332bd4006ed5 [2023-12-24 10:19:54,232 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-24 10:19:54,233 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-12-24 10:19:54,234 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-24 10:19:54,234 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-24 10:19:54,237 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-24 10:19:54,238 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.12 10:19:54" (1/1) ... [2023-12-24 10:19:54,238 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4febd162 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.12 10:19:54, skipping insertion in model container [2023-12-24 10:19:54,238 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.12 10:19:54" (1/1) ... [2023-12-24 10:19:54,305 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-24 10:19:54,417 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_amount500_file-97.i[916,929] [2023-12-24 10:19:54,607 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-24 10:19:54,624 INFO L202 MainTranslator]: Completed pre-run [2023-12-24 10:19:54,642 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_amount500_file-97.i[916,929] [2023-12-24 10:19:54,706 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-24 10:19:54,724 INFO L206 MainTranslator]: Completed translation [2023-12-24 10:19:54,725 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.12 10:19:54 WrapperNode [2023-12-24 10:19:54,725 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-24 10:19:54,726 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-24 10:19:54,726 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-24 10:19:54,726 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-24 10:19:54,731 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.12 10:19:54" (1/1) ... [2023-12-24 10:19:54,759 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.12 10:19:54" (1/1) ... [2023-12-24 10:19:54,815 INFO L138 Inliner]: procedures = 27, calls = 85, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 587 [2023-12-24 10:19:54,815 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-24 10:19:54,816 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-24 10:19:54,816 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-24 10:19:54,816 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-24 10:19:54,827 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.12 10:19:54" (1/1) ... [2023-12-24 10:19:54,828 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.12 10:19:54" (1/1) ... [2023-12-24 10:19:54,844 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.12 10:19:54" (1/1) ... [2023-12-24 10:19:54,905 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 10:19:54,905 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.12 10:19:54" (1/1) ... [2023-12-24 10:19:54,905 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.12 10:19:54" (1/1) ... [2023-12-24 10:19:54,936 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.12 10:19:54" (1/1) ... [2023-12-24 10:19:54,941 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.12 10:19:54" (1/1) ... [2023-12-24 10:19:54,951 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.12 10:19:54" (1/1) ... [2023-12-24 10:19:54,958 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.12 10:19:54" (1/1) ... [2023-12-24 10:19:54,974 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-24 10:19:54,976 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-24 10:19:54,976 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-24 10:19:54,976 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-24 10:19:54,977 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.12 10:19:54" (1/1) ... [2023-12-24 10:19:54,981 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-24 10:19:54,989 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-24 10:19:55,001 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 10:19:55,024 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 10:19:55,030 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-24 10:19:55,031 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2023-12-24 10:19:55,031 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-12-24 10:19:55,032 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-12-24 10:19:55,032 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-24 10:19:55,032 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-24 10:19:55,159 INFO L241 CfgBuilder]: Building ICFG [2023-12-24 10:19:55,160 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-24 10:20:28,741 INFO L282 CfgBuilder]: Performing block encoding [2023-12-24 10:20:28,792 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-24 10:20:28,792 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-12-24 10:20:28,793 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.12 10:20:28 BoogieIcfgContainer [2023-12-24 10:20:28,793 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-24 10:20:28,795 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-24 10:20:28,795 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-24 10:20:28,797 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-24 10:20:28,797 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.12 10:19:54" (1/3) ... [2023-12-24 10:20:28,798 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5b9de223 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.12 10:20:28, skipping insertion in model container [2023-12-24 10:20:28,798 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.12 10:19:54" (2/3) ... [2023-12-24 10:20:28,798 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5b9de223 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.12 10:20:28, skipping insertion in model container [2023-12-24 10:20:28,798 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.12 10:20:28" (3/3) ... [2023-12-24 10:20:28,799 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_operatoramount_amount500_file-97.i [2023-12-24 10:20:28,812 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-24 10:20:28,812 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-12-24 10:20:28,855 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-24 10:20:28,860 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;@788a99d6, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-24 10:20:28,860 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-12-24 10:20:28,867 INFO L276 IsEmpty]: Start isEmpty. Operand has 228 states, 153 states have (on average 1.5947712418300655) internal successors, (244), 154 states have internal predecessors, (244), 72 states have call successors, (72), 1 states have call predecessors, (72), 1 states have return successors, (72), 72 states have call predecessors, (72), 72 states have call successors, (72) [2023-12-24 10:20:28,888 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 472 [2023-12-24 10:20:28,888 INFO L187 NwaCegarLoop]: Found error trace [2023-12-24 10:20:28,890 INFO L195 NwaCegarLoop]: trace histogram [72, 72, 72, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 10:20:28,890 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-24 10:20:28,895 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-24 10:20:28,896 INFO L85 PathProgramCache]: Analyzing trace with hash 27313886, now seen corresponding path program 1 times [2023-12-24 10:20:28,918 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-24 10:20:28,918 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [631307194] [2023-12-24 10:20:28,918 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-24 10:20:28,919 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 10:20:28,919 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-24 10:20:28,921 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 10:20:28,925 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 10:20:31,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-24 10:20:31,166 INFO L262 TraceCheckSpWp]: Trace formula consists of 830 conjuncts, 1 conjunts are in the unsatisfiable core [2023-12-24 10:20:31,178 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-24 10:20:31,252 INFO L134 CoverageAnalysis]: Checked inductivity of 10224 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 10224 trivial. 0 not checked. [2023-12-24 10:20:31,252 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-24 10:20:31,253 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-24 10:20:31,253 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [631307194] [2023-12-24 10:20:31,253 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [631307194] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-24 10:20:31,253 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-24 10:20:31,253 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-24 10:20:31,255 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1387006238] [2023-12-24 10:20:31,255 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-24 10:20:31,264 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-12-24 10:20:31,264 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-24 10:20:31,283 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-12-24 10:20:31,283 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-12-24 10:20:31,286 INFO L87 Difference]: Start difference. First operand has 228 states, 153 states have (on average 1.5947712418300655) internal successors, (244), 154 states have internal predecessors, (244), 72 states have call successors, (72), 1 states have call predecessors, (72), 1 states have return successors, (72), 72 states have call predecessors, (72), 72 states have call successors, (72) Second operand has 2 states, 2 states have (on average 57.0) internal successors, (114), 2 states have internal predecessors, (114), 1 states have call successors, (72), 1 states have call predecessors, (72), 1 states have return successors, (72), 1 states have call predecessors, (72), 1 states have call successors, (72) [2023-12-24 10:20:37,253 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 10:20:37,254 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-24 10:20:37,254 INFO L93 Difference]: Finished difference Result 453 states and 846 transitions. [2023-12-24 10:20:37,956 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-12-24 10:20:37,958 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 57.0) internal successors, (114), 2 states have internal predecessors, (114), 1 states have call successors, (72), 1 states have call predecessors, (72), 1 states have return successors, (72), 1 states have call predecessors, (72), 1 states have call successors, (72) Word has length 471 [2023-12-24 10:20:37,958 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-24 10:20:37,965 INFO L225 Difference]: With dead ends: 453 [2023-12-24 10:20:37,965 INFO L226 Difference]: Without dead ends: 226 [2023-12-24 10:20:37,969 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 470 GetRequests, 470 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 10:20:37,971 INFO L413 NwaCegarLoop]: 375 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, 375 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 10:20:37,972 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 375 Invalid, 3 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 1 Unknown, 0 Unchecked, 5.9s Time] [2023-12-24 10:20:37,982 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 226 states. [2023-12-24 10:20:38,012 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 226 to 226. [2023-12-24 10:20:38,013 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 226 states, 152 states have (on average 1.5394736842105263) internal successors, (234), 152 states have internal predecessors, (234), 72 states have call successors, (72), 1 states have call predecessors, (72), 1 states have return successors, (72), 72 states have call predecessors, (72), 72 states have call successors, (72) [2023-12-24 10:20:38,016 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 226 states to 226 states and 378 transitions. [2023-12-24 10:20:38,017 INFO L78 Accepts]: Start accepts. Automaton has 226 states and 378 transitions. Word has length 471 [2023-12-24 10:20:38,017 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-24 10:20:38,017 INFO L495 AbstractCegarLoop]: Abstraction has 226 states and 378 transitions. [2023-12-24 10:20:38,018 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 57.0) internal successors, (114), 2 states have internal predecessors, (114), 1 states have call successors, (72), 1 states have call predecessors, (72), 1 states have return successors, (72), 1 states have call predecessors, (72), 1 states have call successors, (72) [2023-12-24 10:20:38,018 INFO L276 IsEmpty]: Start isEmpty. Operand 226 states and 378 transitions. [2023-12-24 10:20:38,026 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 472 [2023-12-24 10:20:38,026 INFO L187 NwaCegarLoop]: Found error trace [2023-12-24 10:20:38,026 INFO L195 NwaCegarLoop]: trace histogram [72, 72, 72, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 10:20:38,070 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 10:20:38,240 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 10:20:38,241 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-24 10:20:38,241 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-24 10:20:38,242 INFO L85 PathProgramCache]: Analyzing trace with hash 2131175258, now seen corresponding path program 1 times [2023-12-24 10:20:38,243 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-24 10:20:38,243 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [388259163] [2023-12-24 10:20:38,243 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-24 10:20:38,244 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 10:20:38,244 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-24 10:20:38,245 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 10:20:38,247 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 10:20:40,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-24 10:20:40,478 INFO L262 TraceCheckSpWp]: Trace formula consists of 831 conjuncts, 8 conjunts are in the unsatisfiable core [2023-12-24 10:20:40,486 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-24 10:21:03,889 INFO L134 CoverageAnalysis]: Checked inductivity of 10224 backedges. 5312 proven. 282 refuted. 0 times theorem prover too weak. 4630 trivial. 0 not checked. [2023-12-24 10:21:03,890 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-24 10:21:13,507 INFO L134 CoverageAnalysis]: Checked inductivity of 10224 backedges. 138 proven. 285 refuted. 0 times theorem prover too weak. 9801 trivial. 0 not checked. [2023-12-24 10:21:13,508 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-24 10:21:13,508 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [388259163] [2023-12-24 10:21:13,508 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [388259163] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-24 10:21:13,508 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-24 10:21:13,508 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 13 [2023-12-24 10:21:13,509 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [972111259] [2023-12-24 10:21:13,509 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-24 10:21:13,511 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2023-12-24 10:21:13,511 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-24 10:21:13,512 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2023-12-24 10:21:13,512 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=49, Invalid=107, Unknown=0, NotChecked=0, Total=156 [2023-12-24 10:21:13,512 INFO L87 Difference]: Start difference. First operand 226 states and 378 transitions. Second operand has 13 states, 13 states have (on average 10.153846153846153) internal successors, (132), 13 states have internal predecessors, (132), 3 states have call successors, (123), 3 states have call predecessors, (123), 7 states have return successors, (124), 3 states have call predecessors, (124), 3 states have call successors, (124) [2023-12-24 10:21:33,247 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 5.89s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-24 10:21:37,267 WARN L539 Checker$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 10:21:41,286 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.02s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-24 10:21:45,294 WARN L539 Checker$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 10:21:49,325 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.03s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-24 10:21:53,351 WARN L539 Checker$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 10:21:57,367 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.02s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-24 10:22:01,382 WARN L539 Checker$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 10:22:05,445 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.06s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-24 10:22:09,469 WARN L539 Checker$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 10:22:13,505 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 10:22:25,690 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-24 10:22:25,690 INFO L93 Difference]: Finished difference Result 695 states and 1143 transitions. [2023-12-24 10:22:25,691 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2023-12-24 10:22:25,691 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 10.153846153846153) internal successors, (132), 13 states have internal predecessors, (132), 3 states have call successors, (123), 3 states have call predecessors, (123), 7 states have return successors, (124), 3 states have call predecessors, (124), 3 states have call successors, (124) Word has length 471 [2023-12-24 10:22:25,696 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-24 10:22:25,700 INFO L225 Difference]: With dead ends: 695 [2023-12-24 10:22:25,701 INFO L226 Difference]: Without dead ends: 470 [2023-12-24 10:22:25,703 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 961 GetRequests, 930 SyntacticMatches, 1 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 208 ImplicationChecksByTransitivity, 7.4s TimeCoverageRelationStatistics Valid=301, Invalid=691, Unknown=0, NotChecked=0, Total=992 [2023-12-24 10:22:25,704 INFO L413 NwaCegarLoop]: 398 mSDtfsCounter, 1316 mSDsluCounter, 770 mSDsCounter, 0 mSdLazyCounter, 964 mSolverCounterSat, 263 mSolverCounterUnsat, 11 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 66.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1337 SdHoareTripleChecker+Valid, 1168 SdHoareTripleChecker+Invalid, 1238 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 263 IncrementalHoareTripleChecker+Valid, 964 IncrementalHoareTripleChecker+Invalid, 11 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 67.4s IncrementalHoareTripleChecker+Time [2023-12-24 10:22:25,704 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1337 Valid, 1168 Invalid, 1238 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [263 Valid, 964 Invalid, 11 Unknown, 0 Unchecked, 67.4s Time] [2023-12-24 10:22:25,707 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 470 states. [2023-12-24 10:22:25,747 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 470 to 459. [2023-12-24 10:22:25,749 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 459 states, 308 states have (on average 1.4837662337662338) internal successors, (457), 308 states have internal predecessors, (457), 144 states have call successors, (144), 6 states have call predecessors, (144), 6 states have return successors, (144), 144 states have call predecessors, (144), 144 states have call successors, (144) [2023-12-24 10:22:25,752 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 459 states to 459 states and 745 transitions. [2023-12-24 10:22:25,752 INFO L78 Accepts]: Start accepts. Automaton has 459 states and 745 transitions. Word has length 471 [2023-12-24 10:22:25,754 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-24 10:22:25,754 INFO L495 AbstractCegarLoop]: Abstraction has 459 states and 745 transitions. [2023-12-24 10:22:25,755 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 10.153846153846153) internal successors, (132), 13 states have internal predecessors, (132), 3 states have call successors, (123), 3 states have call predecessors, (123), 7 states have return successors, (124), 3 states have call predecessors, (124), 3 states have call successors, (124) [2023-12-24 10:22:25,755 INFO L276 IsEmpty]: Start isEmpty. Operand 459 states and 745 transitions. [2023-12-24 10:22:25,764 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 472 [2023-12-24 10:22:25,764 INFO L187 NwaCegarLoop]: Found error trace [2023-12-24 10:22:25,764 INFO L195 NwaCegarLoop]: trace histogram [72, 72, 72, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 10:22:25,809 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2023-12-24 10:22:25,992 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 10:22:25,993 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-24 10:22:25,994 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-24 10:22:25,994 INFO L85 PathProgramCache]: Analyzing trace with hash 2100272410, now seen corresponding path program 1 times [2023-12-24 10:22:25,995 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-24 10:22:25,995 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [576024575] [2023-12-24 10:22:25,995 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-24 10:22:25,995 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 10:22:25,995 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-24 10:22:25,997 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 10:22:25,998 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 10:22:28,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-24 10:22:28,357 INFO L262 TraceCheckSpWp]: Trace formula consists of 830 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-24 10:22:28,364 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-24 10:22:37,246 INFO L134 CoverageAnalysis]: Checked inductivity of 10224 backedges. 5163 proven. 99 refuted. 0 times theorem prover too weak. 4962 trivial. 0 not checked. [2023-12-24 10:22:37,247 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-24 10:22:41,565 INFO L134 CoverageAnalysis]: Checked inductivity of 10224 backedges. 114 proven. 99 refuted. 0 times theorem prover too weak. 10011 trivial. 0 not checked. [2023-12-24 10:22:41,566 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-24 10:22:41,566 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [576024575] [2023-12-24 10:22:41,566 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [576024575] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-24 10:22:41,566 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-24 10:22:41,566 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 7 [2023-12-24 10:22:41,566 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1740719784] [2023-12-24 10:22:41,566 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-24 10:22:41,567 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-24 10:22:41,567 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-24 10:22:41,568 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-24 10:22:41,568 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2023-12-24 10:22:41,568 INFO L87 Difference]: Start difference. First operand 459 states and 745 transitions. Second operand has 7 states, 7 states have (on average 17.571428571428573) internal successors, (123), 7 states have internal predecessors, (123), 2 states have call successors, (105), 2 states have call predecessors, (105), 4 states have return successors, (106), 2 states have call predecessors, (106), 2 states have call successors, (106) [2023-12-24 10:22:57,323 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 5.93s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-24 10:23:01,326 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-24 10:23:05,344 WARN L539 Checker$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 10:23:10,480 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-24 10:23:10,480 INFO L93 Difference]: Finished difference Result 1003 states and 1609 transitions. [2023-12-24 10:23:10,484 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-12-24 10:23:10,485 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 17.571428571428573) internal successors, (123), 7 states have internal predecessors, (123), 2 states have call successors, (105), 2 states have call predecessors, (105), 4 states have return successors, (106), 2 states have call predecessors, (106), 2 states have call successors, (106) Word has length 471 [2023-12-24 10:23:10,485 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-24 10:23:10,489 INFO L225 Difference]: With dead ends: 1003 [2023-12-24 10:23:10,490 INFO L226 Difference]: Without dead ends: 545 [2023-12-24 10:23:10,491 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 944 GetRequests, 934 SyntacticMatches, 1 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=45, Invalid=65, Unknown=0, NotChecked=0, Total=110 [2023-12-24 10:23:10,493 INFO L413 NwaCegarLoop]: 347 mSDtfsCounter, 228 mSDsluCounter, 522 mSDsCounter, 0 mSdLazyCounter, 620 mSolverCounterSat, 17 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 27.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 266 SdHoareTripleChecker+Valid, 869 SdHoareTripleChecker+Invalid, 640 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 620 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 28.2s IncrementalHoareTripleChecker+Time [2023-12-24 10:23:10,495 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [266 Valid, 869 Invalid, 640 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 620 Invalid, 3 Unknown, 0 Unchecked, 28.2s Time] [2023-12-24 10:23:10,496 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 545 states. [2023-12-24 10:23:10,574 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 545 to 532. [2023-12-24 10:23:10,575 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 532 states, 339 states have (on average 1.4277286135693215) internal successors, (484), 340 states have internal predecessors, (484), 182 states have call successors, (182), 10 states have call predecessors, (182), 10 states have return successors, (182), 181 states have call predecessors, (182), 182 states have call successors, (182) [2023-12-24 10:23:10,580 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 532 states to 532 states and 848 transitions. [2023-12-24 10:23:10,581 INFO L78 Accepts]: Start accepts. Automaton has 532 states and 848 transitions. Word has length 471 [2023-12-24 10:23:10,584 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-24 10:23:10,584 INFO L495 AbstractCegarLoop]: Abstraction has 532 states and 848 transitions. [2023-12-24 10:23:10,585 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 17.571428571428573) internal successors, (123), 7 states have internal predecessors, (123), 2 states have call successors, (105), 2 states have call predecessors, (105), 4 states have return successors, (106), 2 states have call predecessors, (106), 2 states have call successors, (106) [2023-12-24 10:23:10,585 INFO L276 IsEmpty]: Start isEmpty. Operand 532 states and 848 transitions. [2023-12-24 10:23:10,589 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 472 [2023-12-24 10:23:10,590 INFO L187 NwaCegarLoop]: Found error trace [2023-12-24 10:23:10,590 INFO L195 NwaCegarLoop]: trace histogram [72, 72, 72, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 10:23:10,631 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 10:23:10,808 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-24 10:23:10,809 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-24 10:23:10,809 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-24 10:23:10,809 INFO L85 PathProgramCache]: Analyzing trace with hash -807909476, now seen corresponding path program 1 times [2023-12-24 10:23:10,810 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-24 10:23:10,810 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [558510777] [2023-12-24 10:23:10,810 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-24 10:23:10,810 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 10:23:10,811 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-24 10:23:10,811 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-24 10:23:10,813 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2023-12-24 10:23:12,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-24 10:23:13,088 INFO L262 TraceCheckSpWp]: Trace formula consists of 830 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-24 10:23:13,095 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-24 10:23:26,271 INFO L134 CoverageAnalysis]: Checked inductivity of 10224 backedges. 4427 proven. 147 refuted. 0 times theorem prover too weak. 5650 trivial. 0 not checked. [2023-12-24 10:23:26,272 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-24 10:23:31,966 INFO L134 CoverageAnalysis]: Checked inductivity of 10224 backedges. 66 proven. 147 refuted. 0 times theorem prover too weak. 10011 trivial. 0 not checked. [2023-12-24 10:23:31,966 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-24 10:23:31,966 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [558510777] [2023-12-24 10:23:31,966 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [558510777] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-24 10:23:31,966 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-24 10:23:31,966 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 7 [2023-12-24 10:23:31,967 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [215464565] [2023-12-24 10:23:31,967 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-24 10:23:31,967 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-24 10:23:31,967 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-24 10:23:31,968 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-24 10:23:31,968 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2023-12-24 10:23:31,968 INFO L87 Difference]: Start difference. First operand 532 states and 848 transitions. Second operand has 7 states, 7 states have (on average 17.571428571428573) internal successors, (123), 7 states have internal predecessors, (123), 2 states have call successors, (121), 2 states have call predecessors, (121), 4 states have return successors, (122), 2 states have call predecessors, (122), 2 states have call successors, (122) [2023-12-24 10:23:47,351 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 5.92s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-24 10:23:51,434 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.08s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-24 10:23:55,467 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 10:23:55,478 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-24 10:23:55,478 INFO L93 Difference]: Finished difference Result 1022 states and 1615 transitions. [2023-12-24 10:23:56,234 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-12-24 10:23:56,234 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 17.571428571428573) internal successors, (123), 7 states have internal predecessors, (123), 2 states have call successors, (121), 2 states have call predecessors, (121), 4 states have return successors, (122), 2 states have call predecessors, (122), 2 states have call successors, (122) Word has length 471 [2023-12-24 10:23:56,235 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-24 10:23:56,239 INFO L225 Difference]: With dead ends: 1022 [2023-12-24 10:23:56,239 INFO L226 Difference]: Without dead ends: 556 [2023-12-24 10:23:56,240 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 944 GetRequests, 934 SyntacticMatches, 1 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=45, Invalid=65, Unknown=0, NotChecked=0, Total=110 [2023-12-24 10:23:56,241 INFO L413 NwaCegarLoop]: 281 mSDtfsCounter, 197 mSDsluCounter, 416 mSDsCounter, 0 mSdLazyCounter, 401 mSolverCounterSat, 12 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 22.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 219 SdHoareTripleChecker+Valid, 697 SdHoareTripleChecker+Invalid, 416 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 401 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 22.8s IncrementalHoareTripleChecker+Time [2023-12-24 10:23:56,241 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [219 Valid, 697 Invalid, 416 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 401 Invalid, 3 Unknown, 0 Unchecked, 22.8s Time] [2023-12-24 10:23:56,241 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 556 states. [2023-12-24 10:23:56,281 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 556 to 544. [2023-12-24 10:23:56,282 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 544 states, 348 states have (on average 1.4051724137931034) internal successors, (489), 349 states have internal predecessors, (489), 182 states have call successors, (182), 13 states have call predecessors, (182), 13 states have return successors, (182), 181 states have call predecessors, (182), 182 states have call successors, (182) [2023-12-24 10:23:56,285 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 544 states to 544 states and 853 transitions. [2023-12-24 10:23:56,285 INFO L78 Accepts]: Start accepts. Automaton has 544 states and 853 transitions. Word has length 471 [2023-12-24 10:23:56,285 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-24 10:23:56,285 INFO L495 AbstractCegarLoop]: Abstraction has 544 states and 853 transitions. [2023-12-24 10:23:56,286 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 17.571428571428573) internal successors, (123), 7 states have internal predecessors, (123), 2 states have call successors, (121), 2 states have call predecessors, (121), 4 states have return successors, (122), 2 states have call predecessors, (122), 2 states have call successors, (122) [2023-12-24 10:23:56,286 INFO L276 IsEmpty]: Start isEmpty. Operand 544 states and 853 transitions. [2023-12-24 10:23:56,288 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 474 [2023-12-24 10:23:56,288 INFO L187 NwaCegarLoop]: Found error trace [2023-12-24 10:23:56,288 INFO L195 NwaCegarLoop]: trace histogram [72, 72, 72, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 10:23:56,330 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2023-12-24 10:23:56,508 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-24 10:23:56,508 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-24 10:23:56,509 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-24 10:23:56,509 INFO L85 PathProgramCache]: Analyzing trace with hash 1425916199, now seen corresponding path program 1 times [2023-12-24 10:23:56,510 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-24 10:23:56,510 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1482804536] [2023-12-24 10:23:56,510 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-24 10:23:56,510 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 10:23:56,510 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-24 10:23:56,511 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 10:23:56,512 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 10:23:58,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-24 10:23:58,932 INFO L262 TraceCheckSpWp]: Trace formula consists of 832 conjuncts, 8 conjunts are in the unsatisfiable core [2023-12-24 10:23:58,939 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-24 10:24:26,912 INFO L134 CoverageAnalysis]: Checked inductivity of 10224 backedges. 4442 proven. 297 refuted. 0 times theorem prover too weak. 5485 trivial. 0 not checked. [2023-12-24 10:24:26,912 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-24 10:24:39,313 INFO L134 CoverageAnalysis]: Checked inductivity of 10224 backedges. 123 proven. 300 refuted. 0 times theorem prover too weak. 9801 trivial. 0 not checked. [2023-12-24 10:24:39,313 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-24 10:24:39,313 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1482804536] [2023-12-24 10:24:39,313 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1482804536] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-24 10:24:39,313 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-24 10:24:39,313 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 14 [2023-12-24 10:24:39,313 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2040932791] [2023-12-24 10:24:39,313 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-24 10:24:39,314 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2023-12-24 10:24:39,315 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-24 10:24:39,316 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2023-12-24 10:24:39,316 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=52, Invalid=130, Unknown=0, NotChecked=0, Total=182 [2023-12-24 10:24:39,316 INFO L87 Difference]: Start difference. First operand 544 states and 853 transitions. Second operand has 14 states, 14 states have (on average 10.928571428571429) internal successors, (153), 14 states have internal predecessors, (153), 3 states have call successors, (123), 3 states have call predecessors, (123), 7 states have return successors, (124), 3 states have call predecessors, (124), 3 states have call successors, (124) [2023-12-24 10:24:59,276 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 5.94s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-24 10:25:03,285 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-24 10:25:07,323 WARN L539 Checker$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 10:25:11,344 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.02s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-24 10:25:15,390 WARN L539 Checker$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 10:25:27,789 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-24 10:25:27,790 INFO L93 Difference]: Finished difference Result 1137 states and 1772 transitions. [2023-12-24 10:25:27,790 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2023-12-24 10:25:27,790 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 10.928571428571429) internal successors, (153), 14 states have internal predecessors, (153), 3 states have call successors, (123), 3 states have call predecessors, (123), 7 states have return successors, (124), 3 states have call predecessors, (124), 3 states have call successors, (124) Word has length 473 [2023-12-24 10:25:27,791 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-24 10:25:27,794 INFO L225 Difference]: With dead ends: 1137 [2023-12-24 10:25:27,794 INFO L226 Difference]: Without dead ends: 663 [2023-12-24 10:25:27,795 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 964 GetRequests, 933 SyntacticMatches, 1 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 199 ImplicationChecksByTransitivity, 8.1s TimeCoverageRelationStatistics Valid=298, Invalid=694, Unknown=0, NotChecked=0, Total=992 [2023-12-24 10:25:27,796 INFO L413 NwaCegarLoop]: 410 mSDtfsCounter, 612 mSDsluCounter, 677 mSDsCounter, 0 mSdLazyCounter, 932 mSolverCounterSat, 317 mSolverCounterUnsat, 5 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 42.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 633 SdHoareTripleChecker+Valid, 1087 SdHoareTripleChecker+Invalid, 1254 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 317 IncrementalHoareTripleChecker+Valid, 932 IncrementalHoareTripleChecker+Invalid, 5 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 43.6s IncrementalHoareTripleChecker+Time [2023-12-24 10:25:27,796 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [633 Valid, 1087 Invalid, 1254 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [317 Valid, 932 Invalid, 5 Unknown, 0 Unchecked, 43.6s Time] [2023-12-24 10:25:27,797 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 663 states. [2023-12-24 10:25:27,825 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 663 to 613. [2023-12-24 10:25:27,827 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 613 states, 378 states have (on average 1.3518518518518519) internal successors, (511), 379 states have internal predecessors, (511), 216 states have call successors, (216), 18 states have call predecessors, (216), 18 states have return successors, (216), 215 states have call predecessors, (216), 216 states have call successors, (216) [2023-12-24 10:25:27,829 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 613 states to 613 states and 943 transitions. [2023-12-24 10:25:27,829 INFO L78 Accepts]: Start accepts. Automaton has 613 states and 943 transitions. Word has length 473 [2023-12-24 10:25:27,829 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-24 10:25:27,829 INFO L495 AbstractCegarLoop]: Abstraction has 613 states and 943 transitions. [2023-12-24 10:25:27,830 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 10.928571428571429) internal successors, (153), 14 states have internal predecessors, (153), 3 states have call successors, (123), 3 states have call predecessors, (123), 7 states have return successors, (124), 3 states have call predecessors, (124), 3 states have call successors, (124) [2023-12-24 10:25:27,830 INFO L276 IsEmpty]: Start isEmpty. Operand 613 states and 943 transitions. [2023-12-24 10:25:27,849 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 474 [2023-12-24 10:25:27,849 INFO L187 NwaCegarLoop]: Found error trace [2023-12-24 10:25:27,850 INFO L195 NwaCegarLoop]: trace histogram [72, 72, 72, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 10:25:27,892 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 10:25:28,057 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-24 10:25:28,057 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-24 10:25:28,058 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-24 10:25:28,058 INFO L85 PathProgramCache]: Analyzing trace with hash 1339123743, now seen corresponding path program 1 times [2023-12-24 10:25:28,059 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-24 10:25:28,059 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1492087442] [2023-12-24 10:25:28,059 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-24 10:25:28,059 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 10:25:28,059 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-24 10:25:28,060 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-24 10:25:28,061 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2023-12-24 10:25:30,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-24 10:25:30,481 INFO L262 TraceCheckSpWp]: Trace formula consists of 831 conjuncts, 7 conjunts are in the unsatisfiable core [2023-12-24 10:25:30,489 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-24 10:25:57,520 INFO L134 CoverageAnalysis]: Checked inductivity of 10224 backedges. 4680 proven. 276 refuted. 0 times theorem prover too weak. 5268 trivial. 0 not checked. [2023-12-24 10:25:57,521 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-24 10:25:59,647 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-24 10:25:59,647 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1492087442] [2023-12-24 10:25:59,647 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1492087442] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-24 10:25:59,647 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1702745196] [2023-12-24 10:25:59,647 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-24 10:25:59,648 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-24 10:25:59,649 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 [2023-12-24 10:25:59,650 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-24 10:25:59,653 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (8)] Waiting until timeout for monitored process [2023-12-24 10:26:00,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-24 10:26:00,284 INFO L262 TraceCheckSpWp]: Trace formula consists of 831 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-24 10:26:00,289 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-24 10:26:02,748 INFO L134 CoverageAnalysis]: Checked inductivity of 10224 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 10224 trivial. 0 not checked. [2023-12-24 10:26:02,748 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-24 10:26:02,749 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1702745196] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-24 10:26:02,749 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-24 10:26:02,749 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [8] total 11 [2023-12-24 10:26:02,749 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [950487927] [2023-12-24 10:26:02,749 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-24 10:26:02,749 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-24 10:26:02,749 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-24 10:26:02,750 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-24 10:26:02,750 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=102, Unknown=0, NotChecked=0, Total=132 [2023-12-24 10:26:02,750 INFO L87 Difference]: Start difference. First operand 613 states and 943 transitions. Second operand has 5 states, 5 states have (on average 23.2) internal successors, (116), 5 states have internal predecessors, (116), 1 states have call successors, (72), 1 states have call predecessors, (72), 1 states have return successors, (72), 1 states have call predecessors, (72), 1 states have call successors, (72) [2023-12-24 10:26:12,838 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 5.97s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-24 10:26:16,868 WARN L539 Checker$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 10:26:20,884 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.02s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-24 10:26:24,916 WARN L539 Checker$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 10:26:28,924 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-24 10:26:32,934 WARN L539 Checker$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 10:26:36,945 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 10:26:40,261 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-24 10:26:40,261 INFO L93 Difference]: Finished difference Result 1407 states and 2170 transitions. [2023-12-24 10:26:40,267 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-24 10:26:40,267 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 23.2) internal successors, (116), 5 states have internal predecessors, (116), 1 states have call successors, (72), 1 states have call predecessors, (72), 1 states have return successors, (72), 1 states have call predecessors, (72), 1 states have call successors, (72) Word has length 473 [2023-12-24 10:26:40,269 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-24 10:26:40,275 INFO L225 Difference]: With dead ends: 1407 [2023-12-24 10:26:40,275 INFO L226 Difference]: Without dead ends: 863 [2023-12-24 10:26:40,276 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1022 GetRequests, 1009 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 31 ImplicationChecksByTransitivity, 3.5s TimeCoverageRelationStatistics Valid=45, Invalid=165, Unknown=0, NotChecked=0, Total=210 [2023-12-24 10:26:40,277 INFO L413 NwaCegarLoop]: 447 mSDtfsCounter, 276 mSDsluCounter, 1078 mSDsCounter, 0 mSdLazyCounter, 194 mSolverCounterSat, 1 mSolverCounterUnsat, 7 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 35.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 276 SdHoareTripleChecker+Valid, 1525 SdHoareTripleChecker+Invalid, 202 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 194 IncrementalHoareTripleChecker+Invalid, 7 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 36.7s IncrementalHoareTripleChecker+Time [2023-12-24 10:26:40,277 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [276 Valid, 1525 Invalid, 202 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 194 Invalid, 7 Unknown, 0 Unchecked, 36.7s Time] [2023-12-24 10:26:40,278 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 863 states. [2023-12-24 10:26:40,318 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 863 to 859. [2023-12-24 10:26:40,320 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 859 states, 562 states have (on average 1.3790035587188612) internal successors, (775), 565 states have internal predecessors, (775), 268 states have call successors, (268), 28 states have call predecessors, (268), 28 states have return successors, (268), 265 states have call predecessors, (268), 268 states have call successors, (268) [2023-12-24 10:26:40,323 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 859 states to 859 states and 1311 transitions. [2023-12-24 10:26:40,323 INFO L78 Accepts]: Start accepts. Automaton has 859 states and 1311 transitions. Word has length 473 [2023-12-24 10:26:40,324 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-24 10:26:40,324 INFO L495 AbstractCegarLoop]: Abstraction has 859 states and 1311 transitions. [2023-12-24 10:26:40,324 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 23.2) internal successors, (116), 5 states have internal predecessors, (116), 1 states have call successors, (72), 1 states have call predecessors, (72), 1 states have return successors, (72), 1 states have call predecessors, (72), 1 states have call successors, (72) [2023-12-24 10:26:40,324 INFO L276 IsEmpty]: Start isEmpty. Operand 859 states and 1311 transitions. [2023-12-24 10:26:40,326 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 474 [2023-12-24 10:26:40,326 INFO L187 NwaCegarLoop]: Found error trace [2023-12-24 10:26:40,326 INFO L195 NwaCegarLoop]: trace histogram [72, 72, 72, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 10:26:40,367 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (7)] Forceful destruction successful, exit code 0 [2023-12-24 10:26:40,548 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (8)] Forceful destruction successful, exit code 0 [2023-12-24 10:26:40,740 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt [2023-12-24 10:26:40,740 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-24 10:26:40,741 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-24 10:26:40,741 INFO L85 PathProgramCache]: Analyzing trace with hash -1582439215, now seen corresponding path program 1 times [2023-12-24 10:26:40,742 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-24 10:26:40,742 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [241645093] [2023-12-24 10:26:40,742 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-24 10:26:40,742 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 10:26:40,742 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-24 10:26:40,744 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-24 10:26:40,764 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (9)] Waiting until timeout for monitored process [2023-12-24 10:26:43,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-24 10:26:43,224 INFO L262 TraceCheckSpWp]: Trace formula consists of 830 conjuncts, 7 conjunts are in the unsatisfiable core [2023-12-24 10:26:43,234 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-24 10:27:10,067 INFO L134 CoverageAnalysis]: Checked inductivity of 10224 backedges. 4680 proven. 276 refuted. 0 times theorem prover too weak. 5268 trivial. 0 not checked. [2023-12-24 10:27:10,068 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-24 10:27:12,272 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-24 10:27:12,273 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [241645093] [2023-12-24 10:27:12,273 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [241645093] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-24 10:27:12,273 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [2022264100] [2023-12-24 10:27:12,273 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-24 10:27:12,273 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-24 10:27:12,273 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 [2023-12-24 10:27:12,274 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-24 10:27:12,275 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (10)] Waiting until timeout for monitored process [2023-12-24 10:27:12,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-24 10:27:12,854 INFO L262 TraceCheckSpWp]: Trace formula consists of 830 conjuncts, 8 conjunts are in the unsatisfiable core [2023-12-24 10:27:12,859 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-24 10:27:23,394 INFO L134 CoverageAnalysis]: Checked inductivity of 10224 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 10224 trivial. 0 not checked. [2023-12-24 10:27:23,394 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-24 10:27:23,394 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [2022264100] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-24 10:27:23,394 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-24 10:27:23,394 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [8] total 12 [2023-12-24 10:27:23,395 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [621404920] [2023-12-24 10:27:23,395 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-24 10:27:23,395 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-24 10:27:23,395 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-24 10:27:23,396 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-24 10:27:23,398 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=123, Unknown=0, NotChecked=0, Total=156 [2023-12-24 10:27:23,399 INFO L87 Difference]: Start difference. First operand 859 states and 1311 transitions. Second operand has 6 states, 6 states have (on average 19.333333333333332) internal successors, (116), 6 states have internal predecessors, (116), 1 states have call successors, (72), 1 states have call predecessors, (72), 1 states have return successors, (72), 1 states have call predecessors, (72), 1 states have call successors, (72) [2023-12-24 10:27:37,252 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 5.90s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-24 10:27:41,268 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.02s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-24 10:27:45,290 WARN L539 Checker$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 10:27:49,292 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-24 10:27:53,305 WARN L539 Checker$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 10:27:57,324 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.02s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-24 10:28:01,335 WARN L539 Checker$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 10:28:05,374 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 10:28:07,703 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-24 10:28:07,703 INFO L93 Difference]: Finished difference Result 2115 states and 3211 transitions. [2023-12-24 10:28:07,704 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-12-24 10:28:07,704 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 19.333333333333332) internal successors, (116), 6 states have internal predecessors, (116), 1 states have call successors, (72), 1 states have call predecessors, (72), 1 states have return successors, (72), 1 states have call predecessors, (72), 1 states have call successors, (72) Word has length 473 [2023-12-24 10:28:07,705 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-24 10:28:07,709 INFO L225 Difference]: With dead ends: 2115 [2023-12-24 10:28:07,709 INFO L226 Difference]: Without dead ends: 1391 [2023-12-24 10:28:07,711 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1024 GetRequests, 1010 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 38 ImplicationChecksByTransitivity, 5.0s TimeCoverageRelationStatistics Valid=50, Invalid=190, Unknown=0, NotChecked=0, Total=240 [2023-12-24 10:28:07,711 INFO L413 NwaCegarLoop]: 502 mSDtfsCounter, 487 mSDsluCounter, 1135 mSDsCounter, 0 mSdLazyCounter, 363 mSolverCounterSat, 190 mSolverCounterUnsat, 8 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 42.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 487 SdHoareTripleChecker+Valid, 1637 SdHoareTripleChecker+Invalid, 561 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 190 IncrementalHoareTripleChecker+Valid, 363 IncrementalHoareTripleChecker+Invalid, 8 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 43.0s IncrementalHoareTripleChecker+Time [2023-12-24 10:28:07,711 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [487 Valid, 1637 Invalid, 561 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [190 Valid, 363 Invalid, 8 Unknown, 0 Unchecked, 43.0s Time] [2023-12-24 10:28:07,712 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1391 states. [2023-12-24 10:28:07,756 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1391 to 957. [2023-12-24 10:28:07,758 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 957 states, 658 states have (on average 1.4042553191489362) internal successors, (924), 661 states have internal predecessors, (924), 268 states have call successors, (268), 30 states have call predecessors, (268), 30 states have return successors, (268), 265 states have call predecessors, (268), 268 states have call successors, (268) [2023-12-24 10:28:07,760 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 957 states to 957 states and 1460 transitions. [2023-12-24 10:28:07,761 INFO L78 Accepts]: Start accepts. Automaton has 957 states and 1460 transitions. Word has length 473 [2023-12-24 10:28:07,761 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-24 10:28:07,761 INFO L495 AbstractCegarLoop]: Abstraction has 957 states and 1460 transitions. [2023-12-24 10:28:07,761 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 19.333333333333332) internal successors, (116), 6 states have internal predecessors, (116), 1 states have call successors, (72), 1 states have call predecessors, (72), 1 states have return successors, (72), 1 states have call predecessors, (72), 1 states have call successors, (72) [2023-12-24 10:28:07,762 INFO L276 IsEmpty]: Start isEmpty. Operand 957 states and 1460 transitions. [2023-12-24 10:28:07,764 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 474 [2023-12-24 10:28:07,764 INFO L187 NwaCegarLoop]: Found error trace [2023-12-24 10:28:07,764 INFO L195 NwaCegarLoop]: trace histogram [72, 72, 72, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 10:28:07,807 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (9)] Forceful destruction successful, exit code 0 [2023-12-24 10:28:07,985 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (10)] Forceful destruction successful, exit code 0 [2023-12-24 10:28:08,180 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3,10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt [2023-12-24 10:28:08,180 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-24 10:28:08,181 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-24 10:28:08,181 INFO L85 PathProgramCache]: Analyzing trace with hash -1935527597, now seen corresponding path program 1 times [2023-12-24 10:28:08,182 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-24 10:28:08,182 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1414476572] [2023-12-24 10:28:08,182 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-24 10:28:08,182 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 10:28:08,182 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-24 10:28:08,183 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-24 10:28:08,184 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (11)] Waiting until timeout for monitored process [2023-12-24 10:28:10,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-24 10:28:10,422 INFO L262 TraceCheckSpWp]: Trace formula consists of 829 conjuncts, 11 conjunts are in the unsatisfiable core [2023-12-24 10:28:10,427 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-24 10:28:45,602 INFO L134 CoverageAnalysis]: Checked inductivity of 10224 backedges. 6548 proven. 348 refuted. 0 times theorem prover too weak. 3328 trivial. 0 not checked. [2023-12-24 10:28:45,603 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-24 10:29:02,498 INFO L134 CoverageAnalysis]: Checked inductivity of 10224 backedges. 273 proven. 357 refuted. 0 times theorem prover too weak. 9594 trivial. 0 not checked. [2023-12-24 10:29:02,498 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-24 10:29:02,498 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1414476572] [2023-12-24 10:29:02,498 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1414476572] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-24 10:29:02,498 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-24 10:29:02,498 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 12] total 19 [2023-12-24 10:29:02,498 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1187634862] [2023-12-24 10:29:02,498 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-24 10:29:02,499 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2023-12-24 10:29:02,499 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-24 10:29:02,500 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2023-12-24 10:29:02,500 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=96, Invalid=246, Unknown=0, NotChecked=0, Total=342 [2023-12-24 10:29:02,500 INFO L87 Difference]: Start difference. First operand 957 states and 1460 transitions. Second operand has 19 states, 19 states have (on average 7.684210526315789) internal successors, (146), 19 states have internal predecessors, (146), 4 states have call successors, (123), 4 states have call predecessors, (123), 10 states have return successors, (124), 4 states have call predecessors, (124), 4 states have call successors, (124) [2023-12-24 10:29:33,305 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 5.87s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-24 10:29:37,316 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-24 10:29:41,340 WARN L539 Checker$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 10:29:45,397 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.06s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-24 10:29:49,439 WARN L539 Checker$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 10:29:53,470 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.03s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-24 10:29:57,478 WARN L539 Checker$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 10:30:01,493 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-24 10:30:05,500 WARN L539 Checker$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 10:30:09,536 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.03s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-24 10:30:13,554 WARN L539 Checker$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 10:30:17,605 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.05s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-24 10:30:21,622 WARN L539 Checker$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 10:30:25,658 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.04s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-24 10:30:29,708 WARN L539 Checker$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 10:30:33,737 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.03s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-24 10:30:37,756 WARN L539 Checker$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 10:30:41,776 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.02s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-24 10:30:45,794 WARN L539 Checker$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 10:30:49,829 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.03s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-24 10:30:53,853 WARN L539 Checker$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 10:30:57,871 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.02s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-24 10:31:01,890 WARN L539 Checker$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 10:31:05,920 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 10:31:32,355 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-24 10:31:32,355 INFO L93 Difference]: Finished difference Result 3119 states and 4721 transitions. [2023-12-24 10:31:32,356 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 59 states. [2023-12-24 10:31:32,356 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 7.684210526315789) internal successors, (146), 19 states have internal predecessors, (146), 4 states have call successors, (123), 4 states have call predecessors, (123), 10 states have return successors, (124), 4 states have call predecessors, (124), 4 states have call successors, (124) Word has length 473 [2023-12-24 10:31:32,357 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-24 10:31:32,363 INFO L225 Difference]: With dead ends: 3119 [2023-12-24 10:31:32,363 INFO L226 Difference]: Without dead ends: 2305 [2023-12-24 10:31:32,366 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1003 GetRequests, 934 SyntacticMatches, 1 SemanticMatches, 68 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1656 ImplicationChecksByTransitivity, 21.9s TimeCoverageRelationStatistics Valid=1209, Invalid=3621, Unknown=0, NotChecked=0, Total=4830 [2023-12-24 10:31:32,366 INFO L413 NwaCegarLoop]: 322 mSDtfsCounter, 1283 mSDsluCounter, 1434 mSDsCounter, 0 mSdLazyCounter, 1550 mSolverCounterSat, 939 mSolverCounterUnsat, 24 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 131.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1303 SdHoareTripleChecker+Valid, 1756 SdHoareTripleChecker+Invalid, 2513 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 939 IncrementalHoareTripleChecker+Valid, 1550 IncrementalHoareTripleChecker+Invalid, 24 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 133.3s IncrementalHoareTripleChecker+Time [2023-12-24 10:31:32,367 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1303 Valid, 1756 Invalid, 2513 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [939 Valid, 1550 Invalid, 24 Unknown, 0 Unchecked, 133.3s Time] [2023-12-24 10:31:32,368 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2305 states. [2023-12-24 10:31:32,439 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2305 to 1217. [2023-12-24 10:31:32,441 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1217 states, 913 states have (on average 1.443592552026287) internal successors, (1318), 916 states have internal predecessors, (1318), 268 states have call successors, (268), 35 states have call predecessors, (268), 35 states have return successors, (268), 265 states have call predecessors, (268), 268 states have call successors, (268) [2023-12-24 10:31:32,444 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1217 states to 1217 states and 1854 transitions. [2023-12-24 10:31:32,445 INFO L78 Accepts]: Start accepts. Automaton has 1217 states and 1854 transitions. Word has length 473 [2023-12-24 10:31:32,445 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-24 10:31:32,445 INFO L495 AbstractCegarLoop]: Abstraction has 1217 states and 1854 transitions. [2023-12-24 10:31:32,446 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 7.684210526315789) internal successors, (146), 19 states have internal predecessors, (146), 4 states have call successors, (123), 4 states have call predecessors, (123), 10 states have return successors, (124), 4 states have call predecessors, (124), 4 states have call successors, (124) [2023-12-24 10:31:32,446 INFO L276 IsEmpty]: Start isEmpty. Operand 1217 states and 1854 transitions. [2023-12-24 10:31:32,448 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 476 [2023-12-24 10:31:32,448 INFO L187 NwaCegarLoop]: Found error trace [2023-12-24 10:31:32,448 INFO L195 NwaCegarLoop]: trace histogram [72, 72, 72, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 10:31:32,485 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (11)] Forceful destruction successful, exit code 0 [2023-12-24 10:31:32,664 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-24 10:31:32,664 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-24 10:31:32,665 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-24 10:31:32,665 INFO L85 PathProgramCache]: Analyzing trace with hash 1658200297, now seen corresponding path program 1 times [2023-12-24 10:31:32,666 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-24 10:31:32,666 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [425651848] [2023-12-24 10:31:32,666 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-24 10:31:32,666 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 10:31:32,666 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-24 10:31:32,667 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 10:31:32,669 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 10:31:34,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-24 10:31:34,989 INFO L262 TraceCheckSpWp]: Trace formula consists of 833 conjuncts, 7 conjunts are in the unsatisfiable core [2023-12-24 10:31:34,994 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-24 10:32:00,794 INFO L134 CoverageAnalysis]: Checked inductivity of 10224 backedges. 4680 proven. 276 refuted. 0 times theorem prover too weak. 5268 trivial. 0 not checked. [2023-12-24 10:32:00,795 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-24 10:32:02,835 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-24 10:32:02,835 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [425651848] [2023-12-24 10:32:02,835 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [425651848] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-24 10:32:02,835 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [203019786] [2023-12-24 10:32:02,835 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-24 10:32:02,835 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-24 10:32:02,836 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 [2023-12-24 10:32:02,837 INFO L229 MonitoredProcess]: Starting monitored process 13 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-24 10:32:02,840 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (13)] Waiting until timeout for monitored process [2023-12-24 10:32:03,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-24 10:32:03,412 INFO L262 TraceCheckSpWp]: Trace formula consists of 833 conjuncts, 7 conjunts are in the unsatisfiable core [2023-12-24 10:32:03,433 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-24 10:32:09,744 INFO L134 CoverageAnalysis]: Checked inductivity of 10224 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 10224 trivial. 0 not checked. [2023-12-24 10:32:09,744 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-24 10:32:09,745 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [203019786] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-24 10:32:09,745 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-24 10:32:09,745 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [8] total 11 [2023-12-24 10:32:09,745 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [390034893] [2023-12-24 10:32:09,745 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-24 10:32:09,750 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-24 10:32:09,750 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-24 10:32:09,750 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-24 10:32:09,750 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=101, Unknown=0, NotChecked=0, Total=132 [2023-12-24 10:32:09,751 INFO L87 Difference]: Start difference. First operand 1217 states and 1854 transitions. Second operand has 5 states, 5 states have (on average 23.6) internal successors, (118), 5 states have internal predecessors, (118), 1 states have call successors, (72), 1 states have call predecessors, (72), 1 states have return successors, (72), 1 states have call predecessors, (72), 1 states have call successors, (72) [2023-12-24 10:32:20,509 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 5.90s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-24 10:32:24,519 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-24 10:32:28,554 WARN L539 Checker$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 10:32:32,574 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.02s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-24 10:32:36,588 WARN L539 Checker$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 10:32:40,595 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-24 10:32:44,618 WARN L539 Checker$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 10:32:48,638 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 10:32:51,867 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-24 10:32:51,867 INFO L93 Difference]: Finished difference Result 3449 states and 5283 transitions. [2023-12-24 10:32:51,868 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-12-24 10:32:51,868 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 23.6) internal successors, (118), 5 states have internal predecessors, (118), 1 states have call successors, (72), 1 states have call predecessors, (72), 1 states have return successors, (72), 1 states have call predecessors, (72), 1 states have call successors, (72) Word has length 475 [2023-12-24 10:32:51,869 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-24 10:32:51,875 INFO L225 Difference]: With dead ends: 3449 [2023-12-24 10:32:51,875 INFO L226 Difference]: Without dead ends: 2379 [2023-12-24 10:32:51,877 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1029 GetRequests, 1017 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 3.4s TimeCoverageRelationStatistics Valid=41, Invalid=141, Unknown=0, NotChecked=0, Total=182 [2023-12-24 10:32:51,879 INFO L413 NwaCegarLoop]: 405 mSDtfsCounter, 860 mSDsluCounter, 773 mSDsCounter, 0 mSdLazyCounter, 301 mSolverCounterSat, 138 mSolverCounterUnsat, 8 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 40.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 860 SdHoareTripleChecker+Valid, 1178 SdHoareTripleChecker+Invalid, 447 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 138 IncrementalHoareTripleChecker+Valid, 301 IncrementalHoareTripleChecker+Invalid, 8 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 41.3s IncrementalHoareTripleChecker+Time [2023-12-24 10:32:51,879 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [860 Valid, 1178 Invalid, 447 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [138 Valid, 301 Invalid, 8 Unknown, 0 Unchecked, 41.3s Time] [2023-12-24 10:32:51,881 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2379 states. [2023-12-24 10:32:51,954 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2379 to 1020. [2023-12-24 10:32:51,956 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1020 states, 808 states have (on average 1.4616336633663367) internal successors, (1181), 809 states have internal predecessors, (1181), 183 states have call successors, (183), 28 states have call predecessors, (183), 28 states have return successors, (183), 182 states have call predecessors, (183), 183 states have call successors, (183) [2023-12-24 10:32:51,958 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1020 states to 1020 states and 1547 transitions. [2023-12-24 10:32:51,958 INFO L78 Accepts]: Start accepts. Automaton has 1020 states and 1547 transitions. Word has length 475 [2023-12-24 10:32:51,958 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-24 10:32:51,958 INFO L495 AbstractCegarLoop]: Abstraction has 1020 states and 1547 transitions. [2023-12-24 10:32:51,959 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 23.6) internal successors, (118), 5 states have internal predecessors, (118), 1 states have call successors, (72), 1 states have call predecessors, (72), 1 states have return successors, (72), 1 states have call predecessors, (72), 1 states have call successors, (72) [2023-12-24 10:32:51,959 INFO L276 IsEmpty]: Start isEmpty. Operand 1020 states and 1547 transitions. [2023-12-24 10:32:51,961 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 476 [2023-12-24 10:32:51,961 INFO L187 NwaCegarLoop]: Found error trace [2023-12-24 10:32:51,961 INFO L195 NwaCegarLoop]: trace histogram [72, 72, 72, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 10:32:51,967 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (13)] Forceful destruction successful, exit code 0 [2023-12-24 10:32:52,204 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 10:32:52,367 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt,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 10:32:52,367 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-24 10:32:52,368 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-24 10:32:52,369 INFO L85 PathProgramCache]: Analyzing trace with hash -713538965, now seen corresponding path program 1 times [2023-12-24 10:32:52,369 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-24 10:32:52,369 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [894380313] [2023-12-24 10:32:52,369 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-24 10:32:52,370 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-24 10:32:52,370 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-24 10:32:52,370 INFO L229 MonitoredProcess]: Starting monitored process 14 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-24 10:32:52,371 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (14)] Waiting until timeout for monitored process [2023-12-24 10:32:54,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-24 10:32:54,665 INFO L262 TraceCheckSpWp]: Trace formula consists of 832 conjuncts, 7 conjunts are in the unsatisfiable core [2023-12-24 10:32:54,669 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-24 10:33:21,249 INFO L134 CoverageAnalysis]: Checked inductivity of 10224 backedges. 4680 proven. 276 refuted. 0 times theorem prover too weak. 5268 trivial. 0 not checked. [2023-12-24 10:33:21,249 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-24 10:33:23,528 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-24 10:33:23,528 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [894380313] [2023-12-24 10:33:23,528 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [894380313] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-24 10:33:23,528 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1658868588] [2023-12-24 10:33:23,528 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-24 10:33:23,529 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-24 10:33:23,529 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 [2023-12-24 10:33:23,530 INFO L229 MonitoredProcess]: Starting monitored process 15 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-24 10:33:23,531 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (15)] Waiting until timeout for monitored process [2023-12-24 10:33:28,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-24 10:33:28,273 INFO L262 TraceCheckSpWp]: Trace formula consists of 832 conjuncts, 5 conjunts are in the unsatisfiable core [2023-12-24 10:33:28,278 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-24 10:33:40,983 INFO L134 CoverageAnalysis]: Checked inductivity of 10224 backedges. 4631 proven. 141 refuted. 0 times theorem prover too weak. 5452 trivial. 0 not checked. [2023-12-24 10:33:40,983 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-24 10:33:42,500 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1658868588] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-24 10:33:42,500 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-24 10:33:42,500 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 5] total 8 [2023-12-24 10:33:42,500 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [900511414] [2023-12-24 10:33:42,500 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-24 10:33:42,516 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-24 10:33:42,516 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-24 10:33:42,517 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-24 10:33:42,517 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2023-12-24 10:33:42,517 INFO L87 Difference]: Start difference. First operand 1020 states and 1547 transitions. Second operand has 8 states, 8 states have (on average 23.625) internal successors, (189), 8 states have internal predecessors, (189), 3 states have call successors, (118), 3 states have call predecessors, (118), 5 states have return successors, (119), 3 states have call predecessors, (119), 3 states have call successors, (119) [2023-12-24 10:34:01,116 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 5.95s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-24 10:34:05,134 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.02s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-24 10:34:09,151 WARN L539 Checker$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 10:34:13,164 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-24 10:34:17,168 WARN L539 Checker$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 10:34:18,105 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-24 10:34:18,105 INFO L93 Difference]: Finished difference Result 1994 states and 3011 transitions. [2023-12-24 10:34:18,107 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-12-24 10:34:18,107 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 23.625) internal successors, (189), 8 states have internal predecessors, (189), 3 states have call successors, (118), 3 states have call predecessors, (118), 5 states have return successors, (119), 3 states have call predecessors, (119), 3 states have call successors, (119) Word has length 475 [2023-12-24 10:34:18,108 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-24 10:34:18,111 INFO L225 Difference]: With dead ends: 1994 [2023-12-24 10:34:18,111 INFO L226 Difference]: Without dead ends: 1066 [2023-12-24 10:34:18,112 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1108 GetRequests, 1096 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 2.9s TimeCoverageRelationStatistics Valid=64, Invalid=118, Unknown=0, NotChecked=0, Total=182 [2023-12-24 10:34:18,112 INFO L413 NwaCegarLoop]: 275 mSDtfsCounter, 336 mSDsluCounter, 606 mSDsCounter, 0 mSdLazyCounter, 543 mSolverCounterSat, 70 mSolverCounterUnsat, 5 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 33.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 360 SdHoareTripleChecker+Valid, 881 SdHoareTripleChecker+Invalid, 618 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 70 IncrementalHoareTripleChecker+Valid, 543 IncrementalHoareTripleChecker+Invalid, 5 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 34.5s IncrementalHoareTripleChecker+Time [2023-12-24 10:34:18,112 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [360 Valid, 881 Invalid, 618 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [70 Valid, 543 Invalid, 5 Unknown, 0 Unchecked, 34.5s Time] [2023-12-24 10:34:18,113 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1066 states. [2023-12-24 10:34:18,159 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1066 to 1044. [2023-12-24 10:34:18,160 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1044 states, 826 states have (on average 1.437046004842615) internal successors, (1187), 827 states have internal predecessors, (1187), 183 states have call successors, (183), 34 states have call predecessors, (183), 34 states have return successors, (183), 182 states have call predecessors, (183), 183 states have call successors, (183) [2023-12-24 10:34:18,162 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1044 states to 1044 states and 1553 transitions. [2023-12-24 10:34:18,162 INFO L78 Accepts]: Start accepts. Automaton has 1044 states and 1553 transitions. Word has length 475 [2023-12-24 10:34:18,163 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-24 10:34:18,163 INFO L495 AbstractCegarLoop]: Abstraction has 1044 states and 1553 transitions. [2023-12-24 10:34:18,163 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 23.625) internal successors, (189), 8 states have internal predecessors, (189), 3 states have call successors, (118), 3 states have call predecessors, (118), 5 states have return successors, (119), 3 states have call predecessors, (119), 3 states have call successors, (119) [2023-12-24 10:34:18,163 INFO L276 IsEmpty]: Start isEmpty. Operand 1044 states and 1553 transitions. [2023-12-24 10:34:18,166 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 476 [2023-12-24 10:34:18,166 INFO L187 NwaCegarLoop]: Found error trace [2023-12-24 10:34:18,166 INFO L195 NwaCegarLoop]: trace histogram [72, 72, 72, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 10:34:18,194 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (15)] Ended with exit code 0 [2023-12-24 10:34:18,414 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (14)] Forceful destruction successful, exit code 0 [2023-12-24 10:34:18,577 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt,14 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-24 10:34:18,577 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-24 10:34:18,578 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-24 10:34:18,578 INFO L85 PathProgramCache]: Analyzing trace with hash -1610932243, now seen corresponding path program 1 times [2023-12-24 10:34:18,578 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-24 10:34:18,579 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [603439396] [2023-12-24 10:34:18,579 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-24 10:34:18,579 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 10:34:18,579 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-24 10:34:18,580 INFO L229 MonitoredProcess]: Starting monitored process 16 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-24 10:34:18,596 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (16)] Waiting until timeout for monitored process [2023-12-24 10:34:20,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-24 10:34:20,970 INFO L262 TraceCheckSpWp]: Trace formula consists of 831 conjuncts, 7 conjunts are in the unsatisfiable core [2023-12-24 10:34:20,975 INFO L285 TraceCheckSpWp]: Computing forward predicates... Received shutdown request... [2023-12-24 10:34:26,508 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 (16)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2023-12-24 10:34:26,508 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 10:34:26,528 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-12-24 10:34:26,562 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (16)] Forceful destruction successful, exit code 0 [2023-12-24 10:34:26,728 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-24 10:34:26,729 WARN L619 AbstractCegarLoop]: Verification canceled: while NwaCegarLoop was analyzing trace of length 476 with TraceHistMax 72,while TraceCheckSpWp was constructing forward predicates,while PolyPacSimplificationTermWalker was simplifying a ∧-2-1 term,while PolyPacSimplificationTermWalker was simplifying 2 xjuncts wrt. a ATOM-1 context. [2023-12-24 10:34:26,732 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-24 10:34:26,734 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2023-12-24 10:34:26,735 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.12 10:34:26 BoogieIcfgContainer [2023-12-24 10:34:26,735 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-12-24 10:34:26,736 INFO L158 Benchmark]: Toolchain (without parser) took 872502.92ms. Allocated memory is still 351.3MB. Free memory was 302.6MB in the beginning and 151.0MB in the end (delta: 151.6MB). Peak memory consumption was 152.4MB. Max. memory is 8.0GB. [2023-12-24 10:34:26,736 INFO L158 Benchmark]: CDTParser took 0.50ms. Allocated memory is still 244.3MB. Free memory was 194.6MB in the beginning and 194.5MB in the end (delta: 132.9kB). There was no memory consumed. Max. memory is 8.0GB. [2023-12-24 10:34:26,736 INFO L158 Benchmark]: CACSL2BoogieTranslator took 491.31ms. Allocated memory is still 351.3MB. Free memory was 302.3MB in the beginning and 266.3MB in the end (delta: 36.0MB). Peak memory consumption was 36.7MB. Max. memory is 8.0GB. [2023-12-24 10:34:26,738 INFO L158 Benchmark]: Boogie Procedure Inliner took 89.39ms. Allocated memory is still 351.3MB. Free memory was 266.3MB in the beginning and 259.7MB in the end (delta: 6.6MB). Peak memory consumption was 6.3MB. Max. memory is 8.0GB. [2023-12-24 10:34:26,738 INFO L158 Benchmark]: Boogie Preprocessor took 159.06ms. Allocated memory is still 351.3MB. Free memory was 259.7MB in the beginning and 294.8MB in the end (delta: -35.1MB). Peak memory consumption was 8.5MB. Max. memory is 8.0GB. [2023-12-24 10:34:26,738 INFO L158 Benchmark]: RCFGBuilder took 33816.92ms. Allocated memory is still 351.3MB. Free memory was 294.8MB in the beginning and 286.9MB in the end (delta: 7.9MB). Peak memory consumption was 75.0MB. Max. memory is 8.0GB. [2023-12-24 10:34:26,738 INFO L158 Benchmark]: TraceAbstraction took 837940.73ms. Allocated memory is still 351.3MB. Free memory was 286.4MB in the beginning and 151.0MB in the end (delta: 135.4MB). Peak memory consumption was 134.9MB. Max. memory is 8.0GB. [2023-12-24 10:34:26,739 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.50ms. Allocated memory is still 244.3MB. Free memory was 194.6MB in the beginning and 194.5MB in the end (delta: 132.9kB). There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 491.31ms. Allocated memory is still 351.3MB. Free memory was 302.3MB in the beginning and 266.3MB in the end (delta: 36.0MB). Peak memory consumption was 36.7MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 89.39ms. Allocated memory is still 351.3MB. Free memory was 266.3MB in the beginning and 259.7MB in the end (delta: 6.6MB). Peak memory consumption was 6.3MB. Max. memory is 8.0GB. * Boogie Preprocessor took 159.06ms. Allocated memory is still 351.3MB. Free memory was 259.7MB in the beginning and 294.8MB in the end (delta: -35.1MB). Peak memory consumption was 8.5MB. Max. memory is 8.0GB. * RCFGBuilder took 33816.92ms. Allocated memory is still 351.3MB. Free memory was 294.8MB in the beginning and 286.9MB in the end (delta: 7.9MB). Peak memory consumption was 75.0MB. Max. memory is 8.0GB. * TraceAbstraction took 837940.73ms. Allocated memory is still 351.3MB. Free memory was 286.4MB in the beginning and 151.0MB in the end (delta: 135.4MB). Peak memory consumption was 134.9MB. 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 analyzing trace of length 476 with TraceHistMax 72,while TraceCheckSpWp was constructing forward predicates,while PolyPacSimplificationTermWalker was simplifying a ∧-2-1 term,while PolyPacSimplificationTermWalker was simplifying 2 xjuncts wrt. a ATOM-1 context. - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 228 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 837.9s, OverallIterations: 11, TraceHistogramMax: 72, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.1s, AutomataDifference: 490.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 75 mSolverCounterUnknown, 5741 SdHoareTripleChecker+Valid, 456.6s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 5595 mSDsluCounter, 11173 SdHoareTripleChecker+Invalid, 447.8s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 7411 mSDsCounter, 1947 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 5870 IncrementalHoareTripleChecker+Invalid, 7892 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 1947 mSolverCounterUnsat, 3762 mSDtfsCounter, 5870 mSolverCounterSat, 0.2s SdHoareTripleChecker+Time, 75 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 9469 GetRequests, 9267 SyntacticMatches, 5 SemanticMatches, 197 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2190 ImplicationChecksByTransitivity, 55.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1217occurred in iteration=8, InterpolantAutomatonStates: 160, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.5s AutomataMinimizationTime, 10 MinimizatonAttempts, 2993 StatesRemovedByMinimization, 9 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.8s SsaConstructionTime, 27.3s SatisfiabilityAnalysisTime, 307.2s InterpolantComputationTime, 6622 NumberOfCodeBlocks, 6622 NumberOfCodeBlocksAsserted, 14 NumberOfCheckSat, 8962 ConstructedInterpolants, 0 QuantifiedInterpolants, 32666 SizeOfPredicates, 55 NumberOfNonLiveVariables, 11634 ConjunctsInSsa, 88 ConjunctsInUnsatCore, 19 InterpolantComputations, 4 PerfectInterpolantSequences, 190650/194256 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