/usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Bitvector.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/eca-programs/Problem101_label12.c -------------------------------------------------------------------------------- This is Ultimate 0.2.4-tmp.fs.bitabs-eval-d9c3e40-m [2023-12-22 18:22:56,704 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-22 18:22:56,743 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Bitvector.epf [2023-12-22 18:22:56,746 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-22 18:22:56,746 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-22 18:22:56,760 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-22 18:22:56,761 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-22 18:22:56,761 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-22 18:22:56,761 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-12-22 18:22:56,761 INFO L153 SettingsManager]: * Use memory slicer=true [2023-12-22 18:22:56,762 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-22 18:22:56,762 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-22 18:22:56,762 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-22 18:22:56,762 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-22 18:22:56,763 INFO L153 SettingsManager]: * Use SBE=true [2023-12-22 18:22:56,763 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-22 18:22:56,763 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-22 18:22:56,763 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-22 18:22:56,764 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-22 18:22:56,764 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-22 18:22:56,764 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-22 18:22:56,765 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-22 18:22:56,765 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-22 18:22:56,765 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-12-22 18:22:56,765 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-12-22 18:22:56,765 INFO L153 SettingsManager]: * Allow undefined functions=false [2023-12-22 18:22:56,766 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-12-22 18:22:56,766 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-22 18:22:56,766 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-22 18:22:56,766 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-22 18:22:56,766 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-22 18:22:56,767 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-12-22 18:22:56,767 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-12-22 18:22:56,767 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-22 18:22:56,767 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-22 18:22:56,767 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-22 18:22:56,767 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-22 18:22:56,768 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-22 18:22:56,768 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2023-12-22 18:22:56,768 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-12-22 18:22:56,768 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-22 18:22:56,768 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-12-22 18:22:56,768 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-22 18:22:56,769 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-12-22 18:22:56,769 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-22 18:22:56,769 INFO L153 SettingsManager]: * Logic for external solver=AUFBV [2023-12-22 18:22:56,769 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2023-12-22 18:22:56,954 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-22 18:22:56,974 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-22 18:22:56,975 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-22 18:22:56,976 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-22 18:22:56,977 INFO L274 PluginConnector]: CDTParser initialized [2023-12-22 18:22:56,978 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-programs/Problem101_label12.c [2023-12-22 18:22:58,054 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-22 18:22:59,527 INFO L384 CDTParser]: Found 1 translation units. [2023-12-22 18:22:59,527 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-programs/Problem101_label12.c [2023-12-22 18:22:59,836 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/59874deda/22eca2b2829141469e7cdff4fa4b9e0d/FLAG878ca9972 [2023-12-22 18:22:59,852 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/59874deda/22eca2b2829141469e7cdff4fa4b9e0d [2023-12-22 18:22:59,855 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-22 18:22:59,856 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-12-22 18:22:59,857 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-22 18:22:59,857 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-22 18:22:59,861 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-22 18:22:59,862 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.12 06:22:59" (1/1) ... [2023-12-22 18:22:59,862 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6014a467 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 06:22:59, skipping insertion in model container [2023-12-22 18:22:59,862 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.12 06:22:59" (1/1) ... [2023-12-22 18:23:00,446 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-22 18:23:07,223 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/eca-programs/Problem101_label12.c[2767992,2768005] [2023-12-22 18:23:07,274 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-22 18:23:07,282 INFO L202 MainTranslator]: Completed pre-run [2023-12-22 18:23:11,378 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/eca-programs/Problem101_label12.c[2767992,2768005] [2023-12-22 18:23:11,386 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-22 18:23:12,271 INFO L206 MainTranslator]: Completed translation [2023-12-22 18:23:12,271 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 06:23:12 WrapperNode [2023-12-22 18:23:12,271 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-22 18:23:12,272 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-22 18:23:12,272 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-22 18:23:12,272 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-22 18:23:12,277 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 06:23:12" (1/1) ... [2023-12-22 18:23:13,048 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 06:23:12" (1/1) ... [2023-12-22 18:23:15,813 INFO L138 Inliner]: procedures = 59, calls = 53, calls flagged for inlining = 48, calls inlined = 48, statements flattened = 83779 [2023-12-22 18:23:15,814 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-22 18:23:15,814 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-22 18:23:15,814 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-22 18:23:15,814 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-22 18:23:15,822 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 06:23:12" (1/1) ... [2023-12-22 18:23:15,822 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 06:23:12" (1/1) ... [2023-12-22 18:23:16,337 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 06:23:12" (1/1) ... [2023-12-22 18:23:16,882 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2023-12-22 18:23:16,883 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 06:23:12" (1/1) ... [2023-12-22 18:23:16,883 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 06:23:12" (1/1) ... [2023-12-22 18:23:17,930 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 06:23:12" (1/1) ... [2023-12-22 18:23:18,098 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 06:23:12" (1/1) ... [2023-12-22 18:23:18,210 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 06:23:12" (1/1) ... [2023-12-22 18:23:18,304 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 06:23:12" (1/1) ... [2023-12-22 18:23:18,872 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-22 18:23:18,873 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-22 18:23:18,873 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-22 18:23:18,874 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-22 18:23:18,874 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 06:23:12" (1/1) ... [2023-12-22 18:23:18,878 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-22 18:23:18,889 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-22 18:23:18,919 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2023-12-22 18:23:18,923 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2023-12-22 18:23:18,940 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-22 18:23:18,940 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2023-12-22 18:23:18,940 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-22 18:23:18,940 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-22 18:23:19,054 INFO L241 CfgBuilder]: Building ICFG [2023-12-22 18:23:19,057 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-22 18:24:03,975 INFO L282 CfgBuilder]: Performing block encoding [2023-12-22 18:24:04,169 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-22 18:24:04,170 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-12-22 18:24:04,171 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.12 06:24:04 BoogieIcfgContainer [2023-12-22 18:24:04,171 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-22 18:24:04,174 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-22 18:24:04,174 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-22 18:24:04,176 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-22 18:24:04,176 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.12 06:22:59" (1/3) ... [2023-12-22 18:24:04,177 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@170cfe9b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.12 06:24:04, skipping insertion in model container [2023-12-22 18:24:04,177 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 06:23:12" (2/3) ... [2023-12-22 18:24:04,178 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@170cfe9b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.12 06:24:04, skipping insertion in model container [2023-12-22 18:24:04,178 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.12 06:24:04" (3/3) ... [2023-12-22 18:24:04,179 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem101_label12.c [2023-12-22 18:24:04,192 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-22 18:24:04,192 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-12-22 18:24:04,333 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-22 18:24:04,338 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;@2a44be4d, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-22 18:24:04,339 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-12-22 18:24:04,372 INFO L276 IsEmpty]: Start isEmpty. Operand has 10195 states, 10193 states have (on average 1.9952908859020897) internal successors, (20338), 10194 states have internal predecessors, (20338), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 18:24:05,347 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10095 [2023-12-22 18:24:05,347 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 18:24:05,352 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 18:24:05,353 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 18:24:05,359 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 18:24:05,364 INFO L85 PathProgramCache]: Analyzing trace with hash -1022115859, now seen corresponding path program 1 times [2023-12-22 18:24:05,472 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 18:24:05,473 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1254790114] [2023-12-22 18:24:05,475 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 18:24:05,475 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 18:24:05,475 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 18:24:05,478 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-22 18:24:05,484 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2023-12-22 18:24:09,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 18:24:09,140 INFO L262 TraceCheckSpWp]: Trace formula consists of 10237 conjuncts, 1 conjunts are in the unsatisfiable core [2023-12-22 18:24:09,255 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 18:24:09,485 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 18:24:09,486 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 18:24:09,486 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 18:24:09,487 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1254790114] [2023-12-22 18:24:09,487 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1254790114] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 18:24:09,487 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 18:24:09,488 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-22 18:24:09,489 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1070548738] [2023-12-22 18:24:09,490 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 18:24:09,520 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-12-22 18:24:09,520 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 18:24:09,568 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-12-22 18:24:09,569 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-12-22 18:24:09,606 INFO L87 Difference]: Start difference. First operand has 10195 states, 10193 states have (on average 1.9952908859020897) internal successors, (20338), 10194 states have internal predecessors, (20338), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 2 states have (on average 5047.0) internal successors, (10094), 2 states have internal predecessors, (10094), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 18:24:09,840 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 18:24:09,841 INFO L93 Difference]: Finished difference Result 20389 states and 40675 transitions. [2023-12-22 18:24:09,842 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-12-22 18:24:09,848 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 5047.0) internal successors, (10094), 2 states have internal predecessors, (10094), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 10094 [2023-12-22 18:24:09,863 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 18:24:09,913 INFO L225 Difference]: With dead ends: 20389 [2023-12-22 18:24:09,914 INFO L226 Difference]: Without dead ends: 10193 [2023-12-22 18:24:09,935 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 10093 GetRequests, 10093 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-12-22 18:24:09,938 INFO L413 NwaCegarLoop]: 20273 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 20273 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-22 18:24:09,939 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 20273 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-22 18:24:09,964 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10193 states. [2023-12-22 18:24:10,389 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10193 to 10193. [2023-12-22 18:24:10,442 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10193 states, 10192 states have (on average 1.9891091051805339) internal successors, (20273), 10192 states have internal predecessors, (20273), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 18:24:10,494 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10193 states to 10193 states and 20273 transitions. [2023-12-22 18:24:10,512 INFO L78 Accepts]: Start accepts. Automaton has 10193 states and 20273 transitions. Word has length 10094 [2023-12-22 18:24:10,526 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 18:24:10,526 INFO L495 AbstractCegarLoop]: Abstraction has 10193 states and 20273 transitions. [2023-12-22 18:24:10,529 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 5047.0) internal successors, (10094), 2 states have internal predecessors, (10094), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 18:24:10,530 INFO L276 IsEmpty]: Start isEmpty. Operand 10193 states and 20273 transitions. [2023-12-22 18:24:11,253 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10095 [2023-12-22 18:24:11,253 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 18:24:11,256 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 18:24:11,275 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2023-12-22 18:24:11,457 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 18:24:11,458 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 18:24:11,459 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 18:24:11,462 INFO L85 PathProgramCache]: Analyzing trace with hash -1247791415, now seen corresponding path program 1 times [2023-12-22 18:24:11,563 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 18:24:11,564 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [457597784] [2023-12-22 18:24:11,566 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 18:24:11,566 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 18:24:11,566 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 18:24:11,567 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-22 18:24:11,570 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2023-12-22 18:24:15,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 18:24:16,002 INFO L262 TraceCheckSpWp]: Trace formula consists of 10237 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-22 18:24:16,181 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 18:24:31,551 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 18:24:31,551 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 18:24:31,552 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 18:24:31,552 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [457597784] [2023-12-22 18:24:31,552 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [457597784] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 18:24:31,552 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 18:24:31,553 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-22 18:24:31,553 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1450743051] [2023-12-22 18:24:31,553 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 18:24:31,565 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-22 18:24:31,566 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 18:24:31,573 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-22 18:24:31,574 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-22 18:24:31,578 INFO L87 Difference]: Start difference. First operand 10193 states and 20273 transitions. Second operand has 3 states, 3 states have (on average 3364.6666666666665) internal successors, (10094), 2 states have internal predecessors, (10094), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 18:25:27,783 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 18:25:27,783 INFO L93 Difference]: Finished difference Result 30575 states and 60816 transitions. [2023-12-22 18:25:27,783 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-22 18:25:27,787 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 3364.6666666666665) internal successors, (10094), 2 states have internal predecessors, (10094), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 10094 [2023-12-22 18:25:27,802 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 18:25:27,883 INFO L225 Difference]: With dead ends: 30575 [2023-12-22 18:25:27,884 INFO L226 Difference]: Without dead ends: 20383 [2023-12-22 18:25:27,900 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 10093 GetRequests, 10092 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-22 18:25:27,901 INFO L413 NwaCegarLoop]: 5063 mSDtfsCounter, 1975 mSDsluCounter, 50 mSDsCounter, 0 mSdLazyCounter, 33508 mSolverCounterSat, 7005 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 46.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1975 SdHoareTripleChecker+Valid, 5113 SdHoareTripleChecker+Invalid, 40513 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 7005 IncrementalHoareTripleChecker+Valid, 33508 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 55.3s IncrementalHoareTripleChecker+Time [2023-12-22 18:25:27,901 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1975 Valid, 5113 Invalid, 40513 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [7005 Valid, 33508 Invalid, 0 Unknown, 0 Unchecked, 55.3s Time] [2023-12-22 18:25:27,930 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20383 states. [2023-12-22 18:25:28,287 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20383 to 20383. [2023-12-22 18:25:28,318 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20383 states, 20382 states have (on average 1.7445294868020802) internal successors, (35557), 20382 states have internal predecessors, (35557), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 18:25:28,359 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20383 states to 20383 states and 35557 transitions. [2023-12-22 18:25:28,359 INFO L78 Accepts]: Start accepts. Automaton has 20383 states and 35557 transitions. Word has length 10094 [2023-12-22 18:25:28,368 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 18:25:28,368 INFO L495 AbstractCegarLoop]: Abstraction has 20383 states and 35557 transitions. [2023-12-22 18:25:28,371 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 3364.6666666666665) internal successors, (10094), 2 states have internal predecessors, (10094), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 18:25:28,371 INFO L276 IsEmpty]: Start isEmpty. Operand 20383 states and 35557 transitions. [2023-12-22 18:25:29,059 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10099 [2023-12-22 18:25:29,060 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 18:25:29,064 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 18:25:29,088 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2023-12-22 18:25:29,287 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 18:25:29,288 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 18:25:29,288 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 18:25:29,290 INFO L85 PathProgramCache]: Analyzing trace with hash -1408387167, now seen corresponding path program 1 times [2023-12-22 18:25:29,359 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 18:25:29,359 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1184114875] [2023-12-22 18:25:29,361 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 18:25:29,361 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 18:25:29,361 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 18:25:29,362 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-22 18:25:29,364 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2023-12-22 18:25:33,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 18:25:33,290 INFO L262 TraceCheckSpWp]: Trace formula consists of 10267 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-22 18:25:33,390 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 18:25:33,742 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 18:25:33,743 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 18:25:33,743 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 18:25:33,746 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1184114875] [2023-12-22 18:25:33,746 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1184114875] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 18:25:33,746 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 18:25:33,748 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-22 18:25:33,748 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1055784624] [2023-12-22 18:25:33,750 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 18:25:33,760 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-22 18:25:33,760 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 18:25:33,767 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-22 18:25:33,767 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-22 18:25:33,772 INFO L87 Difference]: Start difference. First operand 20383 states and 35557 transitions. Second operand has 3 states, 3 states have (on average 3366.0) internal successors, (10098), 2 states have internal predecessors, (10098), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 18:26:22,444 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 18:26:22,444 INFO L93 Difference]: Finished difference Result 61145 states and 106668 transitions. [2023-12-22 18:26:22,444 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-22 18:26:22,447 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 3366.0) internal successors, (10098), 2 states have internal predecessors, (10098), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 10098 [2023-12-22 18:26:22,447 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 18:26:22,601 INFO L225 Difference]: With dead ends: 61145 [2023-12-22 18:26:22,602 INFO L226 Difference]: Without dead ends: 40763 [2023-12-22 18:26:22,630 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 10097 GetRequests, 10096 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-22 18:26:22,631 INFO L413 NwaCegarLoop]: 5083 mSDtfsCounter, 13140 mSDsluCounter, 49 mSDsCounter, 0 mSdLazyCounter, 29482 mSolverCounterSat, 11039 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 40.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13140 SdHoareTripleChecker+Valid, 5132 SdHoareTripleChecker+Invalid, 40521 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 11039 IncrementalHoareTripleChecker+Valid, 29482 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 47.7s IncrementalHoareTripleChecker+Time [2023-12-22 18:26:22,631 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [13140 Valid, 5132 Invalid, 40521 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [11039 Valid, 29482 Invalid, 0 Unknown, 0 Unchecked, 47.7s Time] [2023-12-22 18:26:22,700 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 40763 states. [2023-12-22 18:26:23,145 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 40763 to 40763. [2023-12-22 18:26:23,203 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 40763 states, 40762 states have (on average 1.5601295324076345) internal successors, (63594), 40762 states have internal predecessors, (63594), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 18:26:23,259 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40763 states to 40763 states and 63594 transitions. [2023-12-22 18:26:23,259 INFO L78 Accepts]: Start accepts. Automaton has 40763 states and 63594 transitions. Word has length 10098 [2023-12-22 18:26:23,260 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 18:26:23,260 INFO L495 AbstractCegarLoop]: Abstraction has 40763 states and 63594 transitions. [2023-12-22 18:26:23,263 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 3366.0) internal successors, (10098), 2 states have internal predecessors, (10098), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 18:26:23,264 INFO L276 IsEmpty]: Start isEmpty. Operand 40763 states and 63594 transitions. [2023-12-22 18:26:24,189 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10100 [2023-12-22 18:26:24,189 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 18:26:24,193 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 18:26:24,214 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Ended with exit code 0 [2023-12-22 18:26:24,414 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 18:26:24,414 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 18:26:24,416 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 18:26:24,418 INFO L85 PathProgramCache]: Analyzing trace with hash 1103739441, now seen corresponding path program 1 times [2023-12-22 18:26:24,495 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 18:26:24,496 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1683230272] [2023-12-22 18:26:24,498 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 18:26:24,498 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 18:26:24,498 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 18:26:24,499 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-22 18:26:24,518 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2023-12-22 18:26:28,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 18:26:28,760 INFO L262 TraceCheckSpWp]: Trace formula consists of 10266 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-22 18:26:28,862 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 18:26:28,987 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 18:26:28,987 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 18:26:28,988 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 18:26:28,990 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1683230272] [2023-12-22 18:26:28,990 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1683230272] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 18:26:28,991 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 18:26:28,992 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-22 18:26:28,992 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [24280077] [2023-12-22 18:26:28,992 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 18:26:28,999 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-22 18:26:29,001 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 18:26:29,009 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-22 18:26:29,009 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-22 18:26:29,013 INFO L87 Difference]: Start difference. First operand 40763 states and 63594 transitions. Second operand has 3 states, 3 states have (on average 3366.3333333333335) internal successors, (10099), 2 states have internal predecessors, (10099), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 18:27:18,490 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 18:27:18,490 INFO L93 Difference]: Finished difference Result 122285 states and 190779 transitions. [2023-12-22 18:27:18,490 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-22 18:27:18,492 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 3366.3333333333335) internal successors, (10099), 2 states have internal predecessors, (10099), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 10099 [2023-12-22 18:27:18,493 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 18:27:18,622 INFO L225 Difference]: With dead ends: 122285 [2023-12-22 18:27:18,623 INFO L226 Difference]: Without dead ends: 81523 [2023-12-22 18:27:18,650 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 10098 GetRequests, 10097 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-22 18:27:18,652 INFO L413 NwaCegarLoop]: 8749 mSDtfsCounter, 11052 mSDsluCounter, 49 mSDsCounter, 0 mSdLazyCounter, 30123 mSolverCounterSat, 11677 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 40.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11052 SdHoareTripleChecker+Valid, 8798 SdHoareTripleChecker+Invalid, 41800 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 11677 IncrementalHoareTripleChecker+Valid, 30123 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 48.4s IncrementalHoareTripleChecker+Time [2023-12-22 18:27:18,653 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [11052 Valid, 8798 Invalid, 41800 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [11677 Valid, 30123 Invalid, 0 Unknown, 0 Unchecked, 48.4s Time] [2023-12-22 18:27:18,708 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 81523 states. [2023-12-22 18:27:19,663 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 81523 to 81523. [2023-12-22 18:27:19,744 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 81523 states, 81522 states have (on average 1.4289148941390055) internal successors, (116488), 81522 states have internal predecessors, (116488), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 18:27:19,849 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 81523 states to 81523 states and 116488 transitions. [2023-12-22 18:27:19,849 INFO L78 Accepts]: Start accepts. Automaton has 81523 states and 116488 transitions. Word has length 10099 [2023-12-22 18:27:19,850 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 18:27:19,850 INFO L495 AbstractCegarLoop]: Abstraction has 81523 states and 116488 transitions. [2023-12-22 18:27:19,852 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 3366.3333333333335) internal successors, (10099), 2 states have internal predecessors, (10099), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 18:27:19,852 INFO L276 IsEmpty]: Start isEmpty. Operand 81523 states and 116488 transitions. [2023-12-22 18:27:20,887 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10106 [2023-12-22 18:27:20,888 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 18:27:20,891 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 18:27:20,913 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2023-12-22 18:27:21,113 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 18:27:21,114 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 18:27:21,114 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 18:27:21,116 INFO L85 PathProgramCache]: Analyzing trace with hash -1925830688, now seen corresponding path program 1 times [2023-12-22 18:27:21,188 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 18:27:21,188 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1943067627] [2023-12-22 18:27:21,190 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 18:27:21,190 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 18:27:21,190 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 18:27:21,191 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-22 18:27:21,193 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2023-12-22 18:27:24,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 18:27:24,654 INFO L262 TraceCheckSpWp]: Trace formula consists of 10273 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-22 18:27:24,750 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 18:27:34,561 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 18:27:34,561 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 18:27:34,562 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 18:27:34,562 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1943067627] [2023-12-22 18:27:34,562 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1943067627] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 18:27:34,562 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 18:27:34,563 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-22 18:27:34,563 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1575622163] [2023-12-22 18:27:34,563 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 18:27:34,570 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-22 18:27:34,570 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 18:27:34,577 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-22 18:27:34,577 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-22 18:27:34,580 INFO L87 Difference]: Start difference. First operand 81523 states and 116488 transitions. Second operand has 3 states, 3 states have (on average 3368.3333333333335) internal successors, (10105), 3 states have internal predecessors, (10105), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 18:28:18,066 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 18:28:18,067 INFO L93 Difference]: Finished difference Result 244565 states and 349461 transitions. [2023-12-22 18:28:18,067 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-22 18:28:18,069 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 3368.3333333333335) internal successors, (10105), 3 states have internal predecessors, (10105), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 10105 [2023-12-22 18:28:18,092 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 18:28:18,581 INFO L225 Difference]: With dead ends: 244565 [2023-12-22 18:28:18,581 INFO L226 Difference]: Without dead ends: 163043 [2023-12-22 18:28:18,656 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 10104 GetRequests, 10103 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-22 18:28:18,657 INFO L413 NwaCegarLoop]: 16142 mSDtfsCounter, 2035 mSDsluCounter, 50 mSDsCounter, 0 mSdLazyCounter, 31118 mSolverCounterSat, 9654 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 35.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2035 SdHoareTripleChecker+Valid, 16192 SdHoareTripleChecker+Invalid, 40772 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 9654 IncrementalHoareTripleChecker+Valid, 31118 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 42.1s IncrementalHoareTripleChecker+Time [2023-12-22 18:28:18,657 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2035 Valid, 16192 Invalid, 40772 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [9654 Valid, 31118 Invalid, 0 Unknown, 0 Unchecked, 42.1s Time] [2023-12-22 18:28:18,781 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 163043 states. [2023-12-22 18:28:20,267 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 163043 to 163043. [2023-12-22 18:28:20,390 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 163043 states, 163042 states have (on average 1.3146305859839795) internal successors, (214340), 163042 states have internal predecessors, (214340), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 18:28:21,005 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 163043 states to 163043 states and 214340 transitions. [2023-12-22 18:28:21,006 INFO L78 Accepts]: Start accepts. Automaton has 163043 states and 214340 transitions. Word has length 10105 [2023-12-22 18:28:21,012 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 18:28:21,012 INFO L495 AbstractCegarLoop]: Abstraction has 163043 states and 214340 transitions. [2023-12-22 18:28:21,014 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 3368.3333333333335) internal successors, (10105), 3 states have internal predecessors, (10105), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 18:28:21,014 INFO L276 IsEmpty]: Start isEmpty. Operand 163043 states and 214340 transitions. [2023-12-22 18:28:21,931 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10111 [2023-12-22 18:28:21,933 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 18:28:21,954 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 18:28:21,980 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2023-12-22 18:28:22,155 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 18:28:22,155 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 18:28:22,156 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 18:28:22,157 INFO L85 PathProgramCache]: Analyzing trace with hash 1182916474, now seen corresponding path program 1 times [2023-12-22 18:28:22,242 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 18:28:22,242 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [754307755] [2023-12-22 18:28:22,243 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 18:28:22,243 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 18:28:22,243 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 18:28:22,266 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-22 18:28:22,336 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2023-12-22 18:28:26,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 18:28:26,754 INFO L262 TraceCheckSpWp]: Trace formula consists of 10302 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-22 18:28:26,852 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 18:28:27,001 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2023-12-22 18:28:27,002 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 18:28:27,002 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 18:28:27,002 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [754307755] [2023-12-22 18:28:27,002 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [754307755] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 18:28:27,002 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 18:28:27,003 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-22 18:28:27,003 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1402957949] [2023-12-22 18:28:27,003 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 18:28:27,014 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-22 18:28:27,014 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 18:28:27,020 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-22 18:28:27,020 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-22 18:28:27,023 INFO L87 Difference]: Start difference. First operand 163043 states and 214340 transitions. Second operand has 3 states, 3 states have (on average 3368.6666666666665) internal successors, (10106), 2 states have internal predecessors, (10106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 18:29:09,456 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 18:29:09,457 INFO L93 Difference]: Finished difference Result 326085 states and 428679 transitions. [2023-12-22 18:29:09,457 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-22 18:29:09,459 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 3368.6666666666665) internal successors, (10106), 2 states have internal predecessors, (10106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 10110 [2023-12-22 18:29:09,459 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 18:29:09,892 INFO L225 Difference]: With dead ends: 326085 [2023-12-22 18:29:09,892 INFO L226 Difference]: Without dead ends: 163043 [2023-12-22 18:29:10,015 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 10109 GetRequests, 10108 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-22 18:29:10,032 INFO L413 NwaCegarLoop]: 4841 mSDtfsCounter, 13369 mSDsluCounter, 49 mSDsCounter, 0 mSdLazyCounter, 29945 mSolverCounterSat, 7314 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 34.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13369 SdHoareTripleChecker+Valid, 4890 SdHoareTripleChecker+Invalid, 37259 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 7314 IncrementalHoareTripleChecker+Valid, 29945 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 40.9s IncrementalHoareTripleChecker+Time [2023-12-22 18:29:10,032 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [13369 Valid, 4890 Invalid, 37259 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [7314 Valid, 29945 Invalid, 0 Unknown, 0 Unchecked, 40.9s Time] [2023-12-22 18:29:10,163 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 163043 states. [2023-12-22 18:29:11,921 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 163043 to 163043. [2023-12-22 18:29:12,592 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 163043 states, 163042 states have (on average 1.2147544804406227) internal successors, (198056), 163042 states have internal predecessors, (198056), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 18:29:12,896 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 163043 states to 163043 states and 198056 transitions. [2023-12-22 18:29:12,897 INFO L78 Accepts]: Start accepts. Automaton has 163043 states and 198056 transitions. Word has length 10110 [2023-12-22 18:29:12,897 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 18:29:12,897 INFO L495 AbstractCegarLoop]: Abstraction has 163043 states and 198056 transitions. [2023-12-22 18:29:12,899 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 3368.6666666666665) internal successors, (10106), 2 states have internal predecessors, (10106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 18:29:12,899 INFO L276 IsEmpty]: Start isEmpty. Operand 163043 states and 198056 transitions. [2023-12-22 18:29:14,229 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10128 [2023-12-22 18:29:14,229 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 18:29:14,231 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 18:29:14,262 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (7)] Forceful destruction successful, exit code 0 [2023-12-22 18:29:14,451 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 18:29:14,451 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 18:29:14,452 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 18:29:14,454 INFO L85 PathProgramCache]: Analyzing trace with hash -1978560867, now seen corresponding path program 1 times [2023-12-22 18:29:14,522 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 18:29:14,522 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [654444538] [2023-12-22 18:29:14,523 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 18:29:14,524 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 18:29:14,524 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 18:29:14,525 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-22 18:29:14,543 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2023-12-22 18:29:18,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 18:29:18,645 INFO L262 TraceCheckSpWp]: Trace formula consists of 10321 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-22 18:29:18,804 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 18:29:18,912 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 31 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2023-12-22 18:29:18,912 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 18:29:18,912 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 18:29:18,912 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [654444538] [2023-12-22 18:29:18,912 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [654444538] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 18:29:18,913 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 18:29:18,913 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-22 18:29:18,913 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [600844195] [2023-12-22 18:29:18,913 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 18:29:18,918 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-22 18:29:18,918 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 18:29:18,923 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-22 18:29:18,923 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-22 18:29:18,924 INFO L87 Difference]: Start difference. First operand 163043 states and 198056 transitions. Second operand has 3 states, 3 states have (on average 3374.3333333333335) internal successors, (10123), 2 states have internal predecessors, (10123), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 18:30:12,204 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 18:30:12,204 INFO L93 Difference]: Finished difference Result 489125 states and 594165 transitions. [2023-12-22 18:30:12,205 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-22 18:30:12,207 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 3374.3333333333335) internal successors, (10123), 2 states have internal predecessors, (10123), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 10127 [2023-12-22 18:30:12,208 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 18:30:12,959 INFO L225 Difference]: With dead ends: 489125 [2023-12-22 18:30:12,959 INFO L226 Difference]: Without dead ends: 326083 [2023-12-22 18:30:13,031 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 10126 GetRequests, 10125 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-22 18:30:13,033 INFO L413 NwaCegarLoop]: 5851 mSDtfsCounter, 13636 mSDsluCounter, 49 mSDsCounter, 0 mSdLazyCounter, 27475 mSolverCounterSat, 13030 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 42.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13636 SdHoareTripleChecker+Valid, 5900 SdHoareTripleChecker+Invalid, 40505 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 13030 IncrementalHoareTripleChecker+Valid, 27475 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 50.6s IncrementalHoareTripleChecker+Time [2023-12-22 18:30:13,033 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [13636 Valid, 5900 Invalid, 40505 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [13030 Valid, 27475 Invalid, 0 Unknown, 0 Unchecked, 50.6s Time] [2023-12-22 18:30:13,285 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 326083 states. [2023-12-22 18:30:17,428 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 326083 to 326083. [2023-12-22 18:30:18,245 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 326083 states, 326082 states have (on average 1.155267693402273) internal successors, (376712), 326082 states have internal predecessors, (376712), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 18:30:18,653 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 326083 states to 326083 states and 376712 transitions. [2023-12-22 18:30:18,654 INFO L78 Accepts]: Start accepts. Automaton has 326083 states and 376712 transitions. Word has length 10127 [2023-12-22 18:30:18,984 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 18:30:18,984 INFO L495 AbstractCegarLoop]: Abstraction has 326083 states and 376712 transitions. [2023-12-22 18:30:18,986 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 3374.3333333333335) internal successors, (10123), 2 states have internal predecessors, (10123), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 18:30:18,987 INFO L276 IsEmpty]: Start isEmpty. Operand 326083 states and 376712 transitions. [2023-12-22 18:30:20,156 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10145 [2023-12-22 18:30:20,157 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 18:30:20,159 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 18:30:20,182 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (8)] Forceful destruction successful, exit code 0 [2023-12-22 18:30:20,372 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 18:30:20,373 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 18:30:20,373 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 18:30:20,375 INFO L85 PathProgramCache]: Analyzing trace with hash -820391724, now seen corresponding path program 1 times [2023-12-22 18:30:20,451 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 18:30:20,452 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1861654722] [2023-12-22 18:30:20,454 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 18:30:20,454 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 18:30:20,454 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 18:30:20,455 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-22 18:30:20,456 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (9)] Waiting until timeout for monitored process [2023-12-22 18:30:23,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 18:30:23,984 INFO L262 TraceCheckSpWp]: Trace formula consists of 10312 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-22 18:30:24,062 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 18:30:24,280 INFO L134 CoverageAnalysis]: Checked inductivity of 49 backedges. 49 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 18:30:24,280 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 18:30:24,280 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 18:30:24,280 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1861654722] [2023-12-22 18:30:24,280 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1861654722] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 18:30:24,280 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 18:30:24,282 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-22 18:30:24,282 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1571982672] [2023-12-22 18:30:24,282 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 18:30:24,288 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-22 18:30:24,288 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 18:30:24,295 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-22 18:30:24,296 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-22 18:30:24,299 INFO L87 Difference]: Start difference. First operand 326083 states and 376712 transitions. Second operand has 3 states, 3 states have (on average 3381.3333333333335) internal successors, (10144), 2 states have internal predecessors, (10144), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 18:31:20,830 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 18:31:20,830 INFO L93 Difference]: Finished difference Result 978245 states and 1130133 transitions. [2023-12-22 18:31:20,837 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-22 18:31:20,839 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 3381.3333333333335) internal successors, (10144), 2 states have internal predecessors, (10144), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 10144 [2023-12-22 18:31:20,840 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 18:31:22,230 INFO L225 Difference]: With dead ends: 978245 [2023-12-22 18:31:22,230 INFO L226 Difference]: Without dead ends: 652163 [2023-12-22 18:31:22,392 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 10143 GetRequests, 10142 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-22 18:31:22,394 INFO L413 NwaCegarLoop]: 7773 mSDtfsCounter, 11466 mSDsluCounter, 50 mSDsCounter, 0 mSdLazyCounter, 30653 mSolverCounterSat, 11059 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 43.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11466 SdHoareTripleChecker+Valid, 7823 SdHoareTripleChecker+Invalid, 41712 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 11059 IncrementalHoareTripleChecker+Valid, 30653 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 51.8s IncrementalHoareTripleChecker+Time [2023-12-22 18:31:22,394 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [11466 Valid, 7823 Invalid, 41712 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [11059 Valid, 30653 Invalid, 0 Unknown, 0 Unchecked, 51.8s Time] [2023-12-22 18:31:22,934 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 652163 states. [2023-12-22 18:31:29,391 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 652163 to 652163. [2023-12-22 18:31:29,799 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 652163 states, 652162 states have (on average 1.1194856492711933) internal successors, (730086), 652162 states have internal predecessors, (730086), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 18:31:32,326 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 652163 states to 652163 states and 730086 transitions. [2023-12-22 18:31:32,327 INFO L78 Accepts]: Start accepts. Automaton has 652163 states and 730086 transitions. Word has length 10144 [2023-12-22 18:31:32,333 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 18:31:32,333 INFO L495 AbstractCegarLoop]: Abstraction has 652163 states and 730086 transitions. [2023-12-22 18:31:32,335 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 3381.3333333333335) internal successors, (10144), 2 states have internal predecessors, (10144), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 18:31:32,344 INFO L276 IsEmpty]: Start isEmpty. Operand 652163 states and 730086 transitions. [2023-12-22 18:31:34,312 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10311 [2023-12-22 18:31:34,312 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 18:31:34,314 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 18:31:34,337 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (9)] Forceful destruction successful, exit code 0 [2023-12-22 18:31:34,534 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 18:31:34,535 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 18:31:34,536 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 18:31:34,537 INFO L85 PathProgramCache]: Analyzing trace with hash 1176195976, now seen corresponding path program 1 times [2023-12-22 18:31:34,627 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 18:31:34,628 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1111411221] [2023-12-22 18:31:34,629 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 18:31:34,629 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 18:31:34,629 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 18:31:34,646 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-22 18:31:34,647 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (10)] Waiting until timeout for monitored process