/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/array-examples/sorting_bubblesort_ground-2.i -------------------------------------------------------------------------------- This is Ultimate 0.2.4-tmp.fs.bitabs-eval-d9c3e40-m [2023-12-21 15:27:24,325 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-21 15:27:24,404 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Bitvector.epf [2023-12-21 15:27:24,407 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-21 15:27:24,408 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-21 15:27:24,437 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-21 15:27:24,438 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-21 15:27:24,438 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-21 15:27:24,439 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-12-21 15:27:24,441 INFO L153 SettingsManager]: * Use memory slicer=true [2023-12-21 15:27:24,442 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-21 15:27:24,442 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-21 15:27:24,442 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-21 15:27:24,443 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-21 15:27:24,443 INFO L153 SettingsManager]: * Use SBE=true [2023-12-21 15:27:24,444 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-21 15:27:24,444 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-21 15:27:24,444 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-21 15:27:24,444 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-21 15:27:24,444 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-21 15:27:24,445 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-21 15:27:24,445 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-21 15:27:24,445 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-21 15:27:24,445 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-12-21 15:27:24,445 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-12-21 15:27:24,445 INFO L153 SettingsManager]: * Allow undefined functions=false [2023-12-21 15:27:24,446 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-12-21 15:27:24,446 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-21 15:27:24,446 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-21 15:27:24,446 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-21 15:27:24,447 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-21 15:27:24,447 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-12-21 15:27:24,447 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-12-21 15:27:24,447 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-21 15:27:24,447 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-21 15:27:24,447 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-21 15:27:24,447 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-21 15:27:24,447 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-21 15:27:24,448 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2023-12-21 15:27:24,448 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-12-21 15:27:24,448 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-21 15:27:24,448 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-12-21 15:27:24,448 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-21 15:27:24,448 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-12-21 15:27:24,449 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-21 15:27:24,449 INFO L153 SettingsManager]: * Logic for external solver=AUFBV [2023-12-21 15:27:24,449 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2023-12-21 15:27:24,643 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-21 15:27:24,661 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-21 15:27:24,663 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-21 15:27:24,663 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-21 15:27:24,664 INFO L274 PluginConnector]: CDTParser initialized [2023-12-21 15:27:24,665 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/array-examples/sorting_bubblesort_ground-2.i [2023-12-21 15:27:25,683 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-21 15:27:25,856 INFO L384 CDTParser]: Found 1 translation units. [2023-12-21 15:27:25,857 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/array-examples/sorting_bubblesort_ground-2.i [2023-12-21 15:27:25,861 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/cae36ff61/ade0748b650e496d99b915f0aa93eb88/FLAG3e94e8487 [2023-12-21 15:27:25,870 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/cae36ff61/ade0748b650e496d99b915f0aa93eb88 [2023-12-21 15:27:25,871 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-21 15:27:25,872 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-12-21 15:27:25,873 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-21 15:27:25,873 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-21 15:27:25,880 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-21 15:27:25,880 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.12 03:27:25" (1/1) ... [2023-12-21 15:27:25,881 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4da42c43 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 03:27:25, skipping insertion in model container [2023-12-21 15:27:25,881 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.12 03:27:25" (1/1) ... [2023-12-21 15:27:25,894 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-21 15:27:26,003 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/array-examples/sorting_bubblesort_ground-2.i[820,833] [2023-12-21 15:27:26,019 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-21 15:27:26,029 INFO L202 MainTranslator]: Completed pre-run [2023-12-21 15:27:26,040 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/array-examples/sorting_bubblesort_ground-2.i[820,833] [2023-12-21 15:27:26,047 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-21 15:27:26,057 INFO L206 MainTranslator]: Completed translation [2023-12-21 15:27:26,057 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 03:27:26 WrapperNode [2023-12-21 15:27:26,057 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-21 15:27:26,058 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-21 15:27:26,058 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-21 15:27:26,058 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-21 15:27:26,063 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 03:27:26" (1/1) ... [2023-12-21 15:27:26,069 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 03:27:26" (1/1) ... [2023-12-21 15:27:26,082 INFO L138 Inliner]: procedures = 18, calls = 19, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 84 [2023-12-21 15:27:26,082 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-21 15:27:26,083 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-21 15:27:26,083 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-21 15:27:26,083 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-21 15:27:26,089 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 03:27:26" (1/1) ... [2023-12-21 15:27:26,090 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 03:27:26" (1/1) ... [2023-12-21 15:27:26,092 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 03:27:26" (1/1) ... [2023-12-21 15:27:26,100 INFO L175 MemorySlicer]: Split 11 memory accesses to 2 slices as follows [2, 9]. 82 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2, 0]. The 3 writes are split as follows [0, 3]. [2023-12-21 15:27:26,100 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 03:27:26" (1/1) ... [2023-12-21 15:27:26,100 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 03:27:26" (1/1) ... [2023-12-21 15:27:26,105 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 03:27:26" (1/1) ... [2023-12-21 15:27:26,109 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 03:27:26" (1/1) ... [2023-12-21 15:27:26,110 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 03:27:26" (1/1) ... [2023-12-21 15:27:26,153 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 03:27:26" (1/1) ... [2023-12-21 15:27:26,155 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-21 15:27:26,155 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-21 15:27:26,155 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-21 15:27:26,155 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-21 15:27:26,156 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 03:27:26" (1/1) ... [2023-12-21 15:27:26,181 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-21 15:27:26,188 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-21 15:27:26,201 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) [2023-12-21 15:27:26,221 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 [2023-12-21 15:27:26,228 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-21 15:27:26,228 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2023-12-21 15:27:26,228 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#1 [2023-12-21 15:27:26,229 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-12-21 15:27:26,230 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#0 [2023-12-21 15:27:26,230 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#1 [2023-12-21 15:27:26,230 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-21 15:27:26,230 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-21 15:27:26,230 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-12-21 15:27:26,231 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#0 [2023-12-21 15:27:26,231 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#1 [2023-12-21 15:27:26,306 INFO L241 CfgBuilder]: Building ICFG [2023-12-21 15:27:26,308 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-21 15:27:26,476 INFO L282 CfgBuilder]: Performing block encoding [2023-12-21 15:27:26,497 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-21 15:27:26,497 INFO L309 CfgBuilder]: Removed 5 assume(true) statements. [2023-12-21 15:27:26,498 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.12 03:27:26 BoogieIcfgContainer [2023-12-21 15:27:26,498 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-21 15:27:26,500 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-21 15:27:26,500 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-21 15:27:26,502 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-21 15:27:26,502 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.12 03:27:25" (1/3) ... [2023-12-21 15:27:26,502 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@22bc792a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.12 03:27:26, skipping insertion in model container [2023-12-21 15:27:26,502 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 03:27:26" (2/3) ... [2023-12-21 15:27:26,503 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@22bc792a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.12 03:27:26, skipping insertion in model container [2023-12-21 15:27:26,503 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.12 03:27:26" (3/3) ... [2023-12-21 15:27:26,504 INFO L112 eAbstractionObserver]: Analyzing ICFG sorting_bubblesort_ground-2.i [2023-12-21 15:27:26,516 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-21 15:27:26,516 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-12-21 15:27:26,543 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-21 15:27:26,548 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;@712816e3, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-21 15:27:26,548 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-12-21 15:27:26,551 INFO L276 IsEmpty]: Start isEmpty. Operand has 18 states, 16 states have (on average 1.8125) internal successors, (29), 17 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 15:27:26,554 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2023-12-21 15:27:26,554 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 15:27:26,555 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 15:27:26,555 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 15:27:26,559 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 15:27:26,559 INFO L85 PathProgramCache]: Analyzing trace with hash 1612111142, now seen corresponding path program 1 times [2023-12-21 15:27:26,568 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-21 15:27:26,568 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1267770489] [2023-12-21 15:27:26,568 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 15:27:26,569 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 [2023-12-21 15:27:26,569 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-21 15:27:26,571 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) [2023-12-21 15:27:26,577 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 [2023-12-21 15:27:26,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 15:27:26,625 INFO L262 TraceCheckSpWp]: Trace formula consists of 32 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-21 15:27:26,628 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-21 15:27:26,650 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-21 15:27:26,650 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-21 15:27:26,651 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-21 15:27:26,651 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1267770489] [2023-12-21 15:27:26,651 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1267770489] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 15:27:26,652 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 15:27:26,652 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-21 15:27:26,653 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [568256659] [2023-12-21 15:27:26,653 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 15:27:26,656 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-21 15:27:26,656 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-21 15:27:26,695 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-21 15:27:26,696 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-21 15:27:26,697 INFO L87 Difference]: Start difference. First operand has 18 states, 16 states have (on average 1.8125) internal successors, (29), 17 states have internal predecessors, (29), 0 states have call successors, (0), 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 3 states, 3 states have (on average 3.0) internal successors, (9), 2 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 15:27:26,719 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 15:27:26,720 INFO L93 Difference]: Finished difference Result 35 states and 57 transitions. [2023-12-21 15:27:26,721 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-21 15:27:26,722 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 3.0) internal successors, (9), 2 states have internal predecessors, (9), 0 states have call successors, (0), 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 9 [2023-12-21 15:27:26,722 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 15:27:26,726 INFO L225 Difference]: With dead ends: 35 [2023-12-21 15:27:26,727 INFO L226 Difference]: Without dead ends: 17 [2023-12-21 15:27:26,728 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-21 15:27:26,731 INFO L413 NwaCegarLoop]: 19 mSDtfsCounter, 0 mSDsluCounter, 17 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 36 SdHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-21 15:27:26,731 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 36 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-21 15:27:26,743 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17 states. [2023-12-21 15:27:26,752 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17 to 17. [2023-12-21 15:27:26,753 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17 states, 16 states have (on average 1.375) internal successors, (22), 16 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 15:27:26,754 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 22 transitions. [2023-12-21 15:27:26,755 INFO L78 Accepts]: Start accepts. Automaton has 17 states and 22 transitions. Word has length 9 [2023-12-21 15:27:26,755 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 15:27:26,755 INFO L495 AbstractCegarLoop]: Abstraction has 17 states and 22 transitions. [2023-12-21 15:27:26,755 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 3.0) internal successors, (9), 2 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 15:27:26,755 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 22 transitions. [2023-12-21 15:27:26,756 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2023-12-21 15:27:26,756 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 15:27:26,756 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 15:27:26,760 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Ended with exit code 0 [2023-12-21 15:27:26,961 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 [2023-12-21 15:27:26,961 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 15:27:26,962 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 15:27:26,962 INFO L85 PathProgramCache]: Analyzing trace with hash -1371244853, now seen corresponding path program 1 times [2023-12-21 15:27:26,962 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-21 15:27:26,962 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [8745078] [2023-12-21 15:27:26,962 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 15:27:26,963 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 [2023-12-21 15:27:26,963 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-21 15:27:26,964 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) [2023-12-21 15:27:26,965 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 [2023-12-21 15:27:27,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 15:27:27,009 INFO L262 TraceCheckSpWp]: Trace formula consists of 37 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-21 15:27:27,011 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-21 15:27:27,031 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-21 15:27:27,032 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-21 15:27:27,051 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-21 15:27:27,051 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-21 15:27:27,052 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [8745078] [2023-12-21 15:27:27,052 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [8745078] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-21 15:27:27,052 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-21 15:27:27,052 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3] total 5 [2023-12-21 15:27:27,052 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1658380908] [2023-12-21 15:27:27,052 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-21 15:27:27,053 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-21 15:27:27,053 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-21 15:27:27,054 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-21 15:27:27,054 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2023-12-21 15:27:27,054 INFO L87 Difference]: Start difference. First operand 17 states and 22 transitions. Second operand has 6 states, 6 states have (on average 2.1666666666666665) internal successors, (13), 5 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 15:27:27,105 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 15:27:27,105 INFO L93 Difference]: Finished difference Result 34 states and 46 transitions. [2023-12-21 15:27:27,106 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-21 15:27:27,106 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 2.1666666666666665) internal successors, (13), 5 states have internal predecessors, (13), 0 states have call successors, (0), 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 10 [2023-12-21 15:27:27,106 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 15:27:27,107 INFO L225 Difference]: With dead ends: 34 [2023-12-21 15:27:27,107 INFO L226 Difference]: Without dead ends: 20 [2023-12-21 15:27:27,108 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=23, Unknown=0, NotChecked=0, Total=42 [2023-12-21 15:27:27,111 INFO L413 NwaCegarLoop]: 18 mSDtfsCounter, 0 mSDsluCounter, 32 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 50 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-21 15:27:27,111 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 50 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-21 15:27:27,114 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20 states. [2023-12-21 15:27:27,121 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20 to 20. [2023-12-21 15:27:27,121 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20 states, 19 states have (on average 1.3157894736842106) internal successors, (25), 19 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 15:27:27,122 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 25 transitions. [2023-12-21 15:27:27,122 INFO L78 Accepts]: Start accepts. Automaton has 20 states and 25 transitions. Word has length 10 [2023-12-21 15:27:27,122 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 15:27:27,122 INFO L495 AbstractCegarLoop]: Abstraction has 20 states and 25 transitions. [2023-12-21 15:27:27,122 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 2.1666666666666665) internal successors, (13), 5 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 15:27:27,122 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 25 transitions. [2023-12-21 15:27:27,123 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2023-12-21 15:27:27,123 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 15:27:27,123 INFO L195 NwaCegarLoop]: trace histogram [4, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 15:27:27,130 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 [2023-12-21 15:27:27,327 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 [2023-12-21 15:27:27,328 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 15:27:27,328 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 15:27:27,328 INFO L85 PathProgramCache]: Analyzing trace with hash 1266851430, now seen corresponding path program 2 times [2023-12-21 15:27:27,329 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-21 15:27:27,329 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1718582837] [2023-12-21 15:27:27,329 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-12-21 15:27:27,329 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 [2023-12-21 15:27:27,329 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-21 15:27:27,330 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) [2023-12-21 15:27:27,332 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 [2023-12-21 15:27:27,364 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2023-12-21 15:27:27,364 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-12-21 15:27:27,365 INFO L262 TraceCheckSpWp]: Trace formula consists of 32 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-21 15:27:27,366 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-21 15:27:27,380 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2023-12-21 15:27:27,380 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-21 15:27:27,380 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-21 15:27:27,383 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1718582837] [2023-12-21 15:27:27,383 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1718582837] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 15:27:27,384 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 15:27:27,384 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-21 15:27:27,384 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [238006923] [2023-12-21 15:27:27,384 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 15:27:27,385 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-21 15:27:27,385 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-21 15:27:27,385 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-21 15:27:27,386 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-21 15:27:27,386 INFO L87 Difference]: Start difference. First operand 20 states and 25 transitions. Second operand has 3 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 3 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 15:27:27,406 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 15:27:27,406 INFO L93 Difference]: Finished difference Result 33 states and 42 transitions. [2023-12-21 15:27:27,406 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-21 15:27:27,406 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 3 states have internal predecessors, (10), 0 states have call successors, (0), 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 13 [2023-12-21 15:27:27,407 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 15:27:27,407 INFO L225 Difference]: With dead ends: 33 [2023-12-21 15:27:27,407 INFO L226 Difference]: Without dead ends: 25 [2023-12-21 15:27:27,408 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-21 15:27:27,410 INFO L413 NwaCegarLoop]: 22 mSDtfsCounter, 5 mSDsluCounter, 14 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 36 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-21 15:27:27,412 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5 Valid, 36 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-21 15:27:27,413 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25 states. [2023-12-21 15:27:27,420 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25 to 25. [2023-12-21 15:27:27,421 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 25 states, 24 states have (on average 1.3333333333333333) internal successors, (32), 24 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 15:27:27,421 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 25 states and 32 transitions. [2023-12-21 15:27:27,422 INFO L78 Accepts]: Start accepts. Automaton has 25 states and 32 transitions. Word has length 13 [2023-12-21 15:27:27,422 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 15:27:27,422 INFO L495 AbstractCegarLoop]: Abstraction has 25 states and 32 transitions. [2023-12-21 15:27:27,422 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 3 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 15:27:27,422 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states and 32 transitions. [2023-12-21 15:27:27,423 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2023-12-21 15:27:27,423 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 15:27:27,423 INFO L195 NwaCegarLoop]: trace histogram [4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 15:27:27,434 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2023-12-21 15:27:27,626 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 [2023-12-21 15:27:27,626 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 15:27:27,626 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 15:27:27,626 INFO L85 PathProgramCache]: Analyzing trace with hash -1270028536, now seen corresponding path program 1 times [2023-12-21 15:27:27,627 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-21 15:27:27,627 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1591545527] [2023-12-21 15:27:27,627 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 15:27:27,627 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 [2023-12-21 15:27:27,627 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-21 15:27:27,640 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) [2023-12-21 15:27:27,641 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 [2023-12-21 15:27:27,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 15:27:27,695 INFO L262 TraceCheckSpWp]: Trace formula consists of 57 conjuncts, 6 conjunts are in the unsatisfiable core [2023-12-21 15:27:27,696 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-21 15:27:27,748 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-12-21 15:27:27,748 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-21 15:27:27,841 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-12-21 15:27:27,841 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-21 15:27:27,843 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1591545527] [2023-12-21 15:27:27,844 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1591545527] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-21 15:27:27,844 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-21 15:27:27,844 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 11 [2023-12-21 15:27:27,844 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1349523908] [2023-12-21 15:27:27,844 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-21 15:27:27,845 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-12-21 15:27:27,846 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-21 15:27:27,848 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-12-21 15:27:27,849 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=86, Unknown=0, NotChecked=0, Total=132 [2023-12-21 15:27:27,849 INFO L87 Difference]: Start difference. First operand 25 states and 32 transitions. Second operand has 12 states, 12 states have (on average 1.8333333333333333) internal successors, (22), 11 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 15:27:28,040 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 15:27:28,040 INFO L93 Difference]: Finished difference Result 50 states and 69 transitions. [2023-12-21 15:27:28,041 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-12-21 15:27:28,041 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 1.8333333333333333) internal successors, (22), 11 states have internal predecessors, (22), 0 states have call successors, (0), 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 16 [2023-12-21 15:27:28,041 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 15:27:28,041 INFO L225 Difference]: With dead ends: 50 [2023-12-21 15:27:28,041 INFO L226 Difference]: Without dead ends: 31 [2023-12-21 15:27:28,042 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=94, Invalid=146, Unknown=0, NotChecked=0, Total=240 [2023-12-21 15:27:28,042 INFO L413 NwaCegarLoop]: 18 mSDtfsCounter, 0 mSDsluCounter, 80 mSDsCounter, 0 mSdLazyCounter, 52 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 98 SdHoareTripleChecker+Invalid, 53 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 52 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-21 15:27:28,042 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 98 Invalid, 53 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 52 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-21 15:27:28,043 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31 states. [2023-12-21 15:27:28,048 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31 to 31. [2023-12-21 15:27:28,048 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 31 states, 30 states have (on average 1.2666666666666666) internal successors, (38), 30 states have internal predecessors, (38), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 15:27:28,049 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 31 states and 38 transitions. [2023-12-21 15:27:28,049 INFO L78 Accepts]: Start accepts. Automaton has 31 states and 38 transitions. Word has length 16 [2023-12-21 15:27:28,050 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 15:27:28,050 INFO L495 AbstractCegarLoop]: Abstraction has 31 states and 38 transitions. [2023-12-21 15:27:28,050 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 1.8333333333333333) internal successors, (22), 11 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 15:27:28,050 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 38 transitions. [2023-12-21 15:27:28,051 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2023-12-21 15:27:28,051 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 15:27:28,051 INFO L195 NwaCegarLoop]: trace histogram [10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 15:27:28,068 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 [2023-12-21 15:27:28,253 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 [2023-12-21 15:27:28,254 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 15:27:28,254 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 15:27:28,254 INFO L85 PathProgramCache]: Analyzing trace with hash -2035489496, now seen corresponding path program 2 times [2023-12-21 15:27:28,255 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-21 15:27:28,255 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1523347053] [2023-12-21 15:27:28,255 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-12-21 15:27:28,255 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 [2023-12-21 15:27:28,255 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-21 15:27:28,256 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) [2023-12-21 15:27:28,257 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 [2023-12-21 15:27:28,314 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-12-21 15:27:28,315 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-12-21 15:27:28,317 INFO L262 TraceCheckSpWp]: Trace formula consists of 87 conjuncts, 12 conjunts are in the unsatisfiable core [2023-12-21 15:27:28,318 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-21 15:27:28,392 INFO L134 CoverageAnalysis]: Checked inductivity of 56 backedges. 0 proven. 55 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-12-21 15:27:28,392 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-21 15:27:28,706 INFO L134 CoverageAnalysis]: Checked inductivity of 56 backedges. 0 proven. 55 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-12-21 15:27:28,706 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-21 15:27:28,706 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1523347053] [2023-12-21 15:27:28,706 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1523347053] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-21 15:27:28,706 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-21 15:27:28,707 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 12] total 23 [2023-12-21 15:27:28,707 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1036318401] [2023-12-21 15:27:28,707 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-21 15:27:28,707 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2023-12-21 15:27:28,707 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-21 15:27:28,708 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2023-12-21 15:27:28,708 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=166, Invalid=386, Unknown=0, NotChecked=0, Total=552 [2023-12-21 15:27:28,708 INFO L87 Difference]: Start difference. First operand 31 states and 38 transitions. Second operand has 24 states, 24 states have (on average 1.4166666666666667) internal successors, (34), 23 states have internal predecessors, (34), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 15:27:29,510 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 15:27:29,510 INFO L93 Difference]: Finished difference Result 62 states and 87 transitions. [2023-12-21 15:27:29,511 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2023-12-21 15:27:29,511 INFO L78 Accepts]: Start accepts. Automaton has has 24 states, 24 states have (on average 1.4166666666666667) internal successors, (34), 23 states have internal predecessors, (34), 0 states have call successors, (0), 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 22 [2023-12-21 15:27:29,511 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 15:27:29,512 INFO L225 Difference]: With dead ends: 62 [2023-12-21 15:27:29,512 INFO L226 Difference]: Without dead ends: 43 [2023-12-21 15:27:29,512 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=406, Invalid=716, Unknown=0, NotChecked=0, Total=1122 [2023-12-21 15:27:29,513 INFO L413 NwaCegarLoop]: 18 mSDtfsCounter, 0 mSDsluCounter, 176 mSDsCounter, 0 mSdLazyCounter, 178 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 194 SdHoareTripleChecker+Invalid, 179 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 178 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-21 15:27:29,513 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 194 Invalid, 179 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 178 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-21 15:27:29,513 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 43 states. [2023-12-21 15:27:29,517 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 43 to 43. [2023-12-21 15:27:29,517 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 43 states, 42 states have (on average 1.1904761904761905) internal successors, (50), 42 states have internal predecessors, (50), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 15:27:29,518 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43 states to 43 states and 50 transitions. [2023-12-21 15:27:29,518 INFO L78 Accepts]: Start accepts. Automaton has 43 states and 50 transitions. Word has length 22 [2023-12-21 15:27:29,518 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 15:27:29,518 INFO L495 AbstractCegarLoop]: Abstraction has 43 states and 50 transitions. [2023-12-21 15:27:29,518 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 24 states have (on average 1.4166666666666667) internal successors, (34), 23 states have internal predecessors, (34), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 15:27:29,519 INFO L276 IsEmpty]: Start isEmpty. Operand 43 states and 50 transitions. [2023-12-21 15:27:29,519 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2023-12-21 15:27:29,519 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 15:27:29,519 INFO L195 NwaCegarLoop]: trace histogram [22, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 15:27:29,530 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 [2023-12-21 15:27:29,722 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 [2023-12-21 15:27:29,722 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 15:27:29,723 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 15:27:29,723 INFO L85 PathProgramCache]: Analyzing trace with hash -300836504, now seen corresponding path program 3 times [2023-12-21 15:27:29,723 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-21 15:27:29,724 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [151164632] [2023-12-21 15:27:29,724 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2023-12-21 15:27:29,724 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 [2023-12-21 15:27:29,724 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-21 15:27:29,725 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) [2023-12-21 15:27:29,730 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 [2023-12-21 15:27:29,772 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2023-12-21 15:27:29,772 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-12-21 15:27:29,773 INFO L262 TraceCheckSpWp]: Trace formula consists of 47 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-21 15:27:29,774 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-21 15:27:29,780 INFO L134 CoverageAnalysis]: Checked inductivity of 254 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 253 trivial. 0 not checked. [2023-12-21 15:27:29,780 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-21 15:27:29,780 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-21 15:27:29,780 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [151164632] [2023-12-21 15:27:29,780 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [151164632] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 15:27:29,780 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 15:27:29,780 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-21 15:27:29,780 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [656617181] [2023-12-21 15:27:29,781 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 15:27:29,781 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-21 15:27:29,781 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-21 15:27:29,781 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-21 15:27:29,781 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-21 15:27:29,781 INFO L87 Difference]: Start difference. First operand 43 states and 50 transitions. Second operand has 3 states, 3 states have (on average 4.333333333333333) internal successors, (13), 3 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 15:27:29,804 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 15:27:29,804 INFO L93 Difference]: Finished difference Result 65 states and 80 transitions. [2023-12-21 15:27:29,805 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-21 15:27:29,805 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 4.333333333333333) internal successors, (13), 3 states have internal predecessors, (13), 0 states have call successors, (0), 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 34 [2023-12-21 15:27:29,805 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 15:27:29,805 INFO L225 Difference]: With dead ends: 65 [2023-12-21 15:27:29,805 INFO L226 Difference]: Without dead ends: 47 [2023-12-21 15:27:29,806 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-21 15:27:29,806 INFO L413 NwaCegarLoop]: 15 mSDtfsCounter, 3 mSDsluCounter, 12 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 27 SdHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-21 15:27:29,806 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 27 Invalid, 14 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-21 15:27:29,807 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 47 states. [2023-12-21 15:27:29,810 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 47 to 44. [2023-12-21 15:27:29,811 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 44 states, 43 states have (on average 1.186046511627907) internal successors, (51), 43 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 15:27:29,811 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44 states to 44 states and 51 transitions. [2023-12-21 15:27:29,811 INFO L78 Accepts]: Start accepts. Automaton has 44 states and 51 transitions. Word has length 34 [2023-12-21 15:27:29,811 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 15:27:29,811 INFO L495 AbstractCegarLoop]: Abstraction has 44 states and 51 transitions. [2023-12-21 15:27:29,812 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 4.333333333333333) internal successors, (13), 3 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 15:27:29,812 INFO L276 IsEmpty]: Start isEmpty. Operand 44 states and 51 transitions. [2023-12-21 15:27:29,812 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2023-12-21 15:27:29,812 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 15:27:29,812 INFO L195 NwaCegarLoop]: trace histogram [22, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 15:27:29,816 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 (7)] Ended with exit code 0 [2023-12-21 15:27:30,014 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 [2023-12-21 15:27:30,014 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 15:27:30,015 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 15:27:30,015 INFO L85 PathProgramCache]: Analyzing trace with hash -2056215650, now seen corresponding path program 1 times [2023-12-21 15:27:30,015 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-21 15:27:30,015 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1277479748] [2023-12-21 15:27:30,015 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 15:27:30,015 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 [2023-12-21 15:27:30,015 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-21 15:27:30,017 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) [2023-12-21 15:27:30,028 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 [2023-12-21 15:27:30,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 15:27:30,094 INFO L262 TraceCheckSpWp]: Trace formula consists of 152 conjuncts, 24 conjunts are in the unsatisfiable core [2023-12-21 15:27:30,096 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-21 15:27:30,381 INFO L134 CoverageAnalysis]: Checked inductivity of 255 backedges. 0 proven. 253 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-12-21 15:27:30,381 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-21 15:27:31,597 INFO L134 CoverageAnalysis]: Checked inductivity of 255 backedges. 0 proven. 253 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-12-21 15:27:31,597 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-21 15:27:31,597 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1277479748] [2023-12-21 15:27:31,597 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1277479748] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-21 15:27:31,597 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-21 15:27:31,597 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [24, 24] total 47 [2023-12-21 15:27:31,597 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1254629788] [2023-12-21 15:27:31,597 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-21 15:27:31,598 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 48 states [2023-12-21 15:27:31,598 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-21 15:27:31,598 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 48 interpolants. [2023-12-21 15:27:31,599 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=622, Invalid=1634, Unknown=0, NotChecked=0, Total=2256 [2023-12-21 15:27:31,599 INFO L87 Difference]: Start difference. First operand 44 states and 51 transitions. Second operand has 48 states, 48 states have (on average 1.2708333333333333) internal successors, (61), 47 states have internal predecessors, (61), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 15:27:37,010 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 15:27:37,011 INFO L93 Difference]: Finished difference Result 88 states and 125 transitions. [2023-12-21 15:27:37,011 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 48 states. [2023-12-21 15:27:37,011 INFO L78 Accepts]: Start accepts. Automaton has has 48 states, 48 states have (on average 1.2708333333333333) internal successors, (61), 47 states have internal predecessors, (61), 0 states have call successors, (0), 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 37 [2023-12-21 15:27:37,012 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 15:27:37,012 INFO L225 Difference]: With dead ends: 88 [2023-12-21 15:27:37,012 INFO L226 Difference]: Without dead ends: 68 [2023-12-21 15:27:37,013 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 94 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 68 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 231 ImplicationChecksByTransitivity, 6.3s TimeCoverageRelationStatistics Valid=1678, Invalid=3152, Unknown=0, NotChecked=0, Total=4830 [2023-12-21 15:27:37,014 INFO L413 NwaCegarLoop]: 18 mSDtfsCounter, 0 mSDsluCounter, 480 mSDsCounter, 0 mSdLazyCounter, 667 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 498 SdHoareTripleChecker+Invalid, 668 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 667 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-12-21 15:27:37,014 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 498 Invalid, 668 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 667 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-12-21 15:27:37,014 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 68 states. [2023-12-21 15:27:37,019 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 68 to 68. [2023-12-21 15:27:37,020 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 68 states, 67 states have (on average 1.1194029850746268) internal successors, (75), 67 states have internal predecessors, (75), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 15:27:37,021 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 68 states to 68 states and 75 transitions. [2023-12-21 15:27:37,022 INFO L78 Accepts]: Start accepts. Automaton has 68 states and 75 transitions. Word has length 37 [2023-12-21 15:27:37,022 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 15:27:37,022 INFO L495 AbstractCegarLoop]: Abstraction has 68 states and 75 transitions. [2023-12-21 15:27:37,022 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 48 states, 48 states have (on average 1.2708333333333333) internal successors, (61), 47 states have internal predecessors, (61), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 15:27:37,022 INFO L276 IsEmpty]: Start isEmpty. Operand 68 states and 75 transitions. [2023-12-21 15:27:37,023 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2023-12-21 15:27:37,023 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 15:27:37,023 INFO L195 NwaCegarLoop]: trace histogram [46, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 15:27:37,028 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (8)] Ended with exit code 0 [2023-12-21 15:27:37,223 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 [2023-12-21 15:27:37,224 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 15:27:37,224 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 15:27:37,224 INFO L85 PathProgramCache]: Analyzing trace with hash 630295326, now seen corresponding path program 2 times [2023-12-21 15:27:37,224 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-21 15:27:37,224 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1084029013] [2023-12-21 15:27:37,225 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-12-21 15:27:37,225 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 [2023-12-21 15:27:37,225 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-21 15:27:37,226 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) [2023-12-21 15:27:37,227 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 [2023-12-21 15:27:37,346 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-12-21 15:27:37,346 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-12-21 15:27:37,352 INFO L262 TraceCheckSpWp]: Trace formula consists of 272 conjuncts, 48 conjunts are in the unsatisfiable core [2023-12-21 15:27:37,355 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-21 15:27:38,178 INFO L134 CoverageAnalysis]: Checked inductivity of 1083 backedges. 0 proven. 1081 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-12-21 15:27:38,178 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-21 15:27:42,788 INFO L134 CoverageAnalysis]: Checked inductivity of 1083 backedges. 0 proven. 1081 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-12-21 15:27:42,788 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-21 15:27:42,789 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1084029013] [2023-12-21 15:27:42,789 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1084029013] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-21 15:27:42,789 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-21 15:27:42,789 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [48, 48] total 95 [2023-12-21 15:27:42,789 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1503974382] [2023-12-21 15:27:42,789 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-21 15:27:42,789 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 96 states [2023-12-21 15:27:42,789 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-21 15:27:42,791 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 96 interpolants. [2023-12-21 15:27:42,793 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=2398, Invalid=6722, Unknown=0, NotChecked=0, Total=9120 [2023-12-21 15:27:42,793 INFO L87 Difference]: Start difference. First operand 68 states and 75 transitions. Second operand has 96 states, 96 states have (on average 1.1354166666666667) internal successors, (109), 95 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 15:28:26,921 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 15:28:26,921 INFO L93 Difference]: Finished difference Result 136 states and 197 transitions. [2023-12-21 15:28:26,922 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 96 states. [2023-12-21 15:28:26,922 INFO L78 Accepts]: Start accepts. Automaton has has 96 states, 96 states have (on average 1.1354166666666667) internal successors, (109), 95 states have internal predecessors, (109), 0 states have call successors, (0), 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 61 [2023-12-21 15:28:26,922 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 15:28:26,923 INFO L225 Difference]: With dead ends: 136 [2023-12-21 15:28:26,923 INFO L226 Difference]: Without dead ends: 116 [2023-12-21 15:28:26,926 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 166 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 140 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1035 ImplicationChecksByTransitivity, 47.9s TimeCoverageRelationStatistics Valid=6814, Invalid=13208, Unknown=0, NotChecked=0, Total=20022 [2023-12-21 15:28:26,927 INFO L413 NwaCegarLoop]: 18 mSDtfsCounter, 0 mSDsluCounter, 864 mSDsCounter, 0 mSdLazyCounter, 2467 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 882 SdHoareTripleChecker+Invalid, 2468 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 2467 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2023-12-21 15:28:26,927 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 882 Invalid, 2468 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 2467 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2023-12-21 15:28:26,927 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 116 states. [2023-12-21 15:28:26,935 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 116 to 116. [2023-12-21 15:28:26,935 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 116 states, 115 states have (on average 1.0695652173913044) internal successors, (123), 115 states have internal predecessors, (123), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 15:28:26,935 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 116 states to 116 states and 123 transitions. [2023-12-21 15:28:26,936 INFO L78 Accepts]: Start accepts. Automaton has 116 states and 123 transitions. Word has length 61 [2023-12-21 15:28:26,936 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 15:28:26,936 INFO L495 AbstractCegarLoop]: Abstraction has 116 states and 123 transitions. [2023-12-21 15:28:26,936 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 96 states, 96 states have (on average 1.1354166666666667) internal successors, (109), 95 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 15:28:26,936 INFO L276 IsEmpty]: Start isEmpty. Operand 116 states and 123 transitions. [2023-12-21 15:28:26,938 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2023-12-21 15:28:26,938 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 15:28:26,938 INFO L195 NwaCegarLoop]: trace histogram [94, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 15:28:26,953 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 [2023-12-21 15:28:27,141 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 [2023-12-21 15:28:27,143 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 15:28:27,143 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 15:28:27,143 INFO L85 PathProgramCache]: Analyzing trace with hash -499656162, now seen corresponding path program 3 times [2023-12-21 15:28:27,144 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-21 15:28:27,144 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [756245024] [2023-12-21 15:28:27,144 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2023-12-21 15:28:27,144 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 [2023-12-21 15:28:27,144 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-21 15:28:27,145 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) [2023-12-21 15:28:27,148 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (10)] Waiting until timeout for monitored process [2023-12-21 15:28:27,259 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2023-12-21 15:28:27,259 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-12-21 15:28:27,261 INFO L262 TraceCheckSpWp]: Trace formula consists of 62 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-21 15:28:27,274 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-21 15:28:27,288 INFO L134 CoverageAnalysis]: Checked inductivity of 4467 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 4465 trivial. 0 not checked. [2023-12-21 15:28:27,288 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-21 15:28:27,304 INFO L134 CoverageAnalysis]: Checked inductivity of 4467 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 4465 trivial. 0 not checked. [2023-12-21 15:28:27,304 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-21 15:28:27,304 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [756245024] [2023-12-21 15:28:27,304 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [756245024] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-21 15:28:27,304 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-21 15:28:27,304 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 6 [2023-12-21 15:28:27,304 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1798424028] [2023-12-21 15:28:27,305 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-21 15:28:27,305 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-21 15:28:27,306 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-21 15:28:27,306 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-21 15:28:27,306 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2023-12-21 15:28:27,306 INFO L87 Difference]: Start difference. First operand 116 states and 123 transitions. Second operand has 6 states, 6 states have (on average 3.5) internal successors, (21), 6 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 15:28:27,353 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 15:28:27,353 INFO L93 Difference]: Finished difference Result 152 states and 176 transitions. [2023-12-21 15:28:27,354 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-21 15:28:27,354 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 3.5) internal successors, (21), 6 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2023-12-21 15:28:27,354 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 15:28:27,355 INFO L225 Difference]: With dead ends: 152 [2023-12-21 15:28:27,355 INFO L226 Difference]: Without dead ends: 133 [2023-12-21 15:28:27,355 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 217 GetRequests, 212 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=23, Unknown=0, NotChecked=0, Total=42 [2023-12-21 15:28:27,355 INFO L413 NwaCegarLoop]: 16 mSDtfsCounter, 16 mSDsluCounter, 25 mSDsCounter, 0 mSdLazyCounter, 31 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 16 SdHoareTripleChecker+Valid, 41 SdHoareTripleChecker+Invalid, 33 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 31 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-21 15:28:27,355 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [16 Valid, 41 Invalid, 33 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 31 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-21 15:28:27,356 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 133 states. [2023-12-21 15:28:27,363 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 133 to 133. [2023-12-21 15:28:27,364 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 133 states, 132 states have (on average 1.0984848484848484) internal successors, (145), 132 states have internal predecessors, (145), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 15:28:27,364 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 133 states to 133 states and 145 transitions. [2023-12-21 15:28:27,364 INFO L78 Accepts]: Start accepts. Automaton has 133 states and 145 transitions. Word has length 109 [2023-12-21 15:28:27,365 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 15:28:27,365 INFO L495 AbstractCegarLoop]: Abstraction has 133 states and 145 transitions. [2023-12-21 15:28:27,365 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 3.5) internal successors, (21), 6 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 15:28:27,365 INFO L276 IsEmpty]: Start isEmpty. Operand 133 states and 145 transitions. [2023-12-21 15:28:27,370 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2023-12-21 15:28:27,370 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 15:28:27,370 INFO L195 NwaCegarLoop]: trace histogram [94, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 15:28:27,389 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (10)] Forceful destruction successful, exit code 0 [2023-12-21 15:28:27,572 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-21 15:28:27,573 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 15:28:27,573 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 15:28:27,573 INFO L85 PathProgramCache]: Analyzing trace with hash -1670505624, now seen corresponding path program 4 times [2023-12-21 15:28:27,573 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-21 15:28:27,573 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [390417049] [2023-12-21 15:28:27,573 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2023-12-21 15:28:27,574 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 [2023-12-21 15:28:27,574 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-21 15:28:27,575 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-21 15:28:27,575 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (11)] Waiting until timeout for monitored process [2023-12-21 15:28:27,788 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2023-12-21 15:28:27,788 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-12-21 15:28:27,800 INFO L262 TraceCheckSpWp]: Trace formula consists of 527 conjuncts, 96 conjunts are in the unsatisfiable core [2023-12-21 15:28:27,803 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-21 15:28:30,949 INFO L134 CoverageAnalysis]: Checked inductivity of 4488 backedges. 0 proven. 4465 refuted. 0 times theorem prover too weak. 23 trivial. 0 not checked. [2023-12-21 15:28:30,949 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-21 15:28:49,156 INFO L134 CoverageAnalysis]: Checked inductivity of 4488 backedges. 0 proven. 4465 refuted. 0 times theorem prover too weak. 23 trivial. 0 not checked. [2023-12-21 15:28:49,157 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-21 15:28:49,157 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [390417049] [2023-12-21 15:28:49,157 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [390417049] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-21 15:28:49,157 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-21 15:28:49,157 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [96, 96] total 191 [2023-12-21 15:28:49,157 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1593120409] [2023-12-21 15:28:49,157 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-21 15:28:49,157 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 192 states [2023-12-21 15:28:49,158 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-21 15:28:49,159 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 192 interpolants. [2023-12-21 15:28:49,164 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9406, Invalid=27266, Unknown=0, NotChecked=0, Total=36672 [2023-12-21 15:28:49,164 INFO L87 Difference]: Start difference. First operand 133 states and 145 transitions. Second operand has 192 states, 192 states have (on average 1.0677083333333333) internal successors, (205), 191 states have internal predecessors, (205), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 15:36:35,526 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 15:36:35,526 INFO L93 Difference]: Finished difference Result 266 states and 385 transitions. [2023-12-21 15:36:35,527 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 192 states. [2023-12-21 15:36:35,527 INFO L78 Accepts]: Start accepts. Automaton has has 192 states, 192 states have (on average 1.0677083333333333) internal successors, (205), 191 states have internal predecessors, (205), 0 states have call successors, (0), 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 118 [2023-12-21 15:36:35,527 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 15:36:35,529 INFO L225 Difference]: With dead ends: 266 [2023-12-21 15:36:35,529 INFO L226 Difference]: Without dead ends: 229 [2023-12-21 15:36:35,533 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 328 GetRequests, 44 SyntacticMatches, 0 SemanticMatches, 284 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4371 ImplicationChecksByTransitivity, 482.1s TimeCoverageRelationStatistics Valid=27454, Invalid=54056, Unknown=0, NotChecked=0, Total=81510 [2023-12-21 15:36:35,534 INFO L413 NwaCegarLoop]: 18 mSDtfsCounter, 0 mSDsluCounter, 1568 mSDsCounter, 0 mSdLazyCounter, 9511 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 1586 SdHoareTripleChecker+Invalid, 9512 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 9511 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.6s IncrementalHoareTripleChecker+Time [2023-12-21 15:36:35,534 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 1586 Invalid, 9512 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 9511 Invalid, 0 Unknown, 0 Unchecked, 4.6s Time] [2023-12-21 15:36:35,535 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 229 states. [2023-12-21 15:36:35,546 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 229 to 229. [2023-12-21 15:36:35,547 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 229 states, 228 states have (on average 1.0570175438596492) internal successors, (241), 228 states have internal predecessors, (241), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 15:36:35,547 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 229 states to 229 states and 241 transitions. [2023-12-21 15:36:35,547 INFO L78 Accepts]: Start accepts. Automaton has 229 states and 241 transitions. Word has length 118 [2023-12-21 15:36:35,547 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 15:36:35,548 INFO L495 AbstractCegarLoop]: Abstraction has 229 states and 241 transitions. [2023-12-21 15:36:35,548 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 192 states, 192 states have (on average 1.0677083333333333) internal successors, (205), 191 states have internal predecessors, (205), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 15:36:35,548 INFO L276 IsEmpty]: Start isEmpty. Operand 229 states and 241 transitions. [2023-12-21 15:36:35,549 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 215 [2023-12-21 15:36:35,549 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 15:36:35,549 INFO L195 NwaCegarLoop]: trace histogram [190, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 15:36:35,574 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (11)] Forceful destruction successful, exit code 0 [2023-12-21 15:36:35,756 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-21 15:36:35,759 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 15:36:35,759 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 15:36:35,759 INFO L85 PathProgramCache]: Analyzing trace with hash 2099330408, now seen corresponding path program 5 times [2023-12-21 15:36:35,760 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-21 15:36:35,760 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1995229095] [2023-12-21 15:36:35,760 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2023-12-21 15:36:35,760 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 [2023-12-21 15:36:35,760 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-21 15:36:35,762 INFO L229 MonitoredProcess]: Starting monitored process 12 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-21 15:36:35,762 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (12)] Waiting until timeout for monitored process [2023-12-21 15:36:57,367 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 95 check-sat command(s) [2023-12-21 15:36:57,367 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-12-21 15:36:57,400 INFO L262 TraceCheckSpWp]: Trace formula consists of 977 conjuncts, 6 conjunts are in the unsatisfiable core [2023-12-21 15:36:57,403 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-21 15:36:57,436 INFO L134 CoverageAnalysis]: Checked inductivity of 18168 backedges. 1 proven. 22 refuted. 0 times theorem prover too weak. 18145 trivial. 0 not checked. [2023-12-21 15:36:57,436 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-21 15:36:57,510 INFO L134 CoverageAnalysis]: Checked inductivity of 18168 backedges. 1 proven. 22 refuted. 0 times theorem prover too weak. 18145 trivial. 0 not checked. [2023-12-21 15:36:57,511 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-21 15:36:57,511 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1995229095] [2023-12-21 15:36:57,511 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1995229095] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-21 15:36:57,511 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-21 15:36:57,511 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 12 [2023-12-21 15:36:57,511 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1490660013] [2023-12-21 15:36:57,511 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-21 15:36:57,512 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-12-21 15:36:57,512 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-21 15:36:57,512 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-12-21 15:36:57,512 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=86, Unknown=0, NotChecked=0, Total=132 [2023-12-21 15:36:57,512 INFO L87 Difference]: Start difference. First operand 229 states and 241 transitions. Second operand has 12 states, 12 states have (on average 3.25) internal successors, (39), 12 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 15:36:57,702 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 15:36:57,702 INFO L93 Difference]: Finished difference Result 301 states and 348 transitions. [2023-12-21 15:36:57,702 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-12-21 15:36:57,702 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 3.25) internal successors, (39), 12 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 214 [2023-12-21 15:36:57,703 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 15:36:57,704 INFO L225 Difference]: With dead ends: 301 [2023-12-21 15:36:57,704 INFO L226 Difference]: Without dead ends: 265 [2023-12-21 15:36:57,704 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 430 GetRequests, 416 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=94, Invalid=146, Unknown=0, NotChecked=0, Total=240 [2023-12-21 15:36:57,704 INFO L413 NwaCegarLoop]: 19 mSDtfsCounter, 43 mSDsluCounter, 90 mSDsCounter, 0 mSdLazyCounter, 126 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 43 SdHoareTripleChecker+Valid, 109 SdHoareTripleChecker+Invalid, 128 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 126 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-21 15:36:57,705 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [43 Valid, 109 Invalid, 128 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 126 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-21 15:36:57,705 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 265 states. [2023-12-21 15:36:57,716 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 265 to 265. [2023-12-21 15:36:57,716 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 265 states, 264 states have (on average 1.0946969696969697) internal successors, (289), 264 states have internal predecessors, (289), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 15:36:57,717 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 265 states to 265 states and 289 transitions. [2023-12-21 15:36:57,717 INFO L78 Accepts]: Start accepts. Automaton has 265 states and 289 transitions. Word has length 214 [2023-12-21 15:36:57,717 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 15:36:57,717 INFO L495 AbstractCegarLoop]: Abstraction has 265 states and 289 transitions. [2023-12-21 15:36:57,717 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 3.25) internal successors, (39), 12 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 15:36:57,717 INFO L276 IsEmpty]: Start isEmpty. Operand 265 states and 289 transitions. [2023-12-21 15:36:57,718 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 233 [2023-12-21 15:36:57,718 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 15:36:57,719 INFO L195 NwaCegarLoop]: trace histogram [190, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 15:36:57,736 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (12)] Forceful destruction successful, exit code 0 [2023-12-21 15:36:57,928 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-21 15:36:57,928 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 15:36:57,929 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 15:36:57,929 INFO L85 PathProgramCache]: Analyzing trace with hash -1415409112, now seen corresponding path program 6 times [2023-12-21 15:36:57,929 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-21 15:36:57,929 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [529274967] [2023-12-21 15:36:57,929 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2023-12-21 15:36:57,929 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 [2023-12-21 15:36:57,929 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-21 15:36:57,930 INFO L229 MonitoredProcess]: Starting monitored process 13 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-21 15:36:57,931 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (13)] Waiting until timeout for monitored process [2023-12-21 15:36:58,827 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 23 check-sat command(s) [2023-12-21 15:36:58,827 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-12-21 15:36:58,839 INFO L262 TraceCheckSpWp]: Trace formula consists of 307 conjuncts, 12 conjunts are in the unsatisfiable core [2023-12-21 15:36:58,842 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-21 15:36:58,944 INFO L134 CoverageAnalysis]: Checked inductivity of 18291 backedges. 1 proven. 145 refuted. 0 times theorem prover too weak. 18145 trivial. 0 not checked. [2023-12-21 15:36:58,944 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-21 15:36:59,267 INFO L134 CoverageAnalysis]: Checked inductivity of 18291 backedges. 1 proven. 145 refuted. 0 times theorem prover too weak. 18145 trivial. 0 not checked. [2023-12-21 15:36:59,267 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-21 15:36:59,267 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [529274967] [2023-12-21 15:36:59,267 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [529274967] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-21 15:36:59,267 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-21 15:36:59,267 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 13] total 24 [2023-12-21 15:36:59,285 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [102140431] [2023-12-21 15:36:59,285 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-21 15:36:59,292 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2023-12-21 15:36:59,293 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-21 15:36:59,293 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2023-12-21 15:36:59,293 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=166, Invalid=386, Unknown=0, NotChecked=0, Total=552 [2023-12-21 15:36:59,293 INFO L87 Difference]: Start difference. First operand 265 states and 289 transitions. Second operand has 24 states, 24 states have (on average 3.125) internal successors, (75), 24 states have internal predecessors, (75), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 15:37:00,272 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 15:37:00,273 INFO L93 Difference]: Finished difference Result 409 states and 504 transitions. [2023-12-21 15:37:00,273 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2023-12-21 15:37:00,273 INFO L78 Accepts]: Start accepts. Automaton has has 24 states, 24 states have (on average 3.125) internal successors, (75), 24 states have internal predecessors, (75), 0 states have call successors, (0), 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 232 [2023-12-21 15:37:00,274 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 15:37:00,275 INFO L225 Difference]: With dead ends: 409 [2023-12-21 15:37:00,275 INFO L226 Difference]: Without dead ends: 337 [2023-12-21 15:37:00,276 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 472 GetRequests, 440 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=406, Invalid=716, Unknown=0, NotChecked=0, Total=1122 [2023-12-21 15:37:00,276 INFO L413 NwaCegarLoop]: 25 mSDtfsCounter, 148 mSDsluCounter, 285 mSDsCounter, 0 mSdLazyCounter, 483 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 148 SdHoareTripleChecker+Valid, 310 SdHoareTripleChecker+Invalid, 485 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 483 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-12-21 15:37:00,276 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [148 Valid, 310 Invalid, 485 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 483 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-12-21 15:37:00,277 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 337 states. [2023-12-21 15:37:00,296 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 337 to 337. [2023-12-21 15:37:00,296 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 337 states, 336 states have (on average 1.1458333333333333) internal successors, (385), 336 states have internal predecessors, (385), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 15:37:00,297 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 337 states to 337 states and 385 transitions. [2023-12-21 15:37:00,297 INFO L78 Accepts]: Start accepts. Automaton has 337 states and 385 transitions. Word has length 232 [2023-12-21 15:37:00,297 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 15:37:00,297 INFO L495 AbstractCegarLoop]: Abstraction has 337 states and 385 transitions. [2023-12-21 15:37:00,297 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 24 states have (on average 3.125) internal successors, (75), 24 states have internal predecessors, (75), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 15:37:00,297 INFO L276 IsEmpty]: Start isEmpty. Operand 337 states and 385 transitions. [2023-12-21 15:37:00,299 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 269 [2023-12-21 15:37:00,299 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 15:37:00,299 INFO L195 NwaCegarLoop]: trace histogram [190, 22, 22, 22, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 15:37:00,313 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (13)] Forceful destruction successful, exit code 0 [2023-12-21 15:37:00,508 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-21 15:37:00,508 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 15:37:00,509 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 15:37:00,509 INFO L85 PathProgramCache]: Analyzing trace with hash 1426467752, now seen corresponding path program 7 times [2023-12-21 15:37:00,509 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-21 15:37:00,509 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1442176371] [2023-12-21 15:37:00,509 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2023-12-21 15:37:00,509 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 [2023-12-21 15:37:00,510 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-21 15:37:00,510 INFO L229 MonitoredProcess]: Starting monitored process 14 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-21 15:37:00,517 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (14)] Waiting until timeout for monitored process [2023-12-21 15:37:00,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 15:37:01,013 INFO L262 TraceCheckSpWp]: Trace formula consists of 1097 conjuncts, 192 conjunts are in the unsatisfiable core [2023-12-21 15:37:01,019 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-21 15:37:13,637 INFO L134 CoverageAnalysis]: Checked inductivity of 18861 backedges. 0 proven. 18145 refuted. 0 times theorem prover too weak. 716 trivial. 0 not checked. [2023-12-21 15:37:13,638 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-21 15:38:29,310 INFO L134 CoverageAnalysis]: Checked inductivity of 18861 backedges. 0 proven. 18145 refuted. 0 times theorem prover too weak. 716 trivial. 0 not checked. [2023-12-21 15:38:29,311 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-21 15:38:29,311 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1442176371] [2023-12-21 15:38:29,311 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1442176371] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-21 15:38:29,311 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-21 15:38:29,311 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [192, 192] total 383 [2023-12-21 15:38:29,311 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [186891541] [2023-12-21 15:38:29,311 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-21 15:38:29,312 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 384 states [2023-12-21 15:38:29,312 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-21 15:38:29,317 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 384 interpolants. [2023-12-21 15:38:29,321 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=37246, Invalid=109826, Unknown=0, NotChecked=0, Total=147072 [2023-12-21 15:38:29,322 INFO L87 Difference]: Start difference. First operand 337 states and 385 transitions. Second operand has 384 states, 384 states have (on average 1.0338541666666667) internal successors, (397), 383 states have internal predecessors, (397), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 15:39:13,432 WARN L293 SmtUtils]: Spent 8.18s on a formula simplification. DAG size of input: 574 DAG size of output: 7 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-12-21 15:39:38,162 WARN L293 SmtUtils]: Spent 8.31s on a formula simplification. DAG size of input: 571 DAG size of output: 7 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-12-21 15:40:05,166 WARN L293 SmtUtils]: Spent 8.47s on a formula simplification. DAG size of input: 568 DAG size of output: 7 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-12-21 15:40:33,777 WARN L293 SmtUtils]: Spent 8.45s on a formula simplification. DAG size of input: 565 DAG size of output: 7 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-12-21 15:41:01,770 WARN L293 SmtUtils]: Spent 8.12s on a formula simplification. DAG size of input: 562 DAG size of output: 7 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-12-21 15:41:31,676 WARN L293 SmtUtils]: Spent 8.03s on a formula simplification. DAG size of input: 559 DAG size of output: 7 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) Received shutdown request... [2023-12-21 15:41:58,439 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (14)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2023-12-21 15:41:58,484 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2023-12-21 15:41:59,454 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (14)] Forceful destruction successful, exit code 0 [2023-12-21 15:41:59,500 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 199 states. [2023-12-21 15:41:59,507 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 541 GetRequests, 152 SyntacticMatches, 0 SemanticMatches, 388 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 249.9s TimeCoverageRelationStatistics Valid=39550, Invalid=112160, Unknown=0, NotChecked=0, Total=151710 [2023-12-21 15:41:59,510 INFO L413 NwaCegarLoop]: 0 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 36679 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 15.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 36680 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 36679 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 17.8s IncrementalHoareTripleChecker+Time [2023-12-21 15:41:59,510 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 0 Invalid, 36680 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1 Valid, 36679 Invalid, 0 Unknown, 0 Unchecked, 17.8s Time] [2023-12-21 15:41:59,511 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-12-21 15:41:59,512 WARN L619 AbstractCegarLoop]: Verification canceled: while NwaCegarLoop was constructing difference of abstraction (337states) and FLOYD_HOARE automaton (currently 199 states, 384 states before enhancement),while PredicateUnifier was unifying predicates,while executing Executor. [2023-12-21 15:41:59,520 INFO L445 BasicCegarLoop]: Path program histogram: [7, 3, 2, 1] [2023-12-21 15:41:59,525 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Forceful destruction successful, exit code 0 [2023-12-21 15:41:59,527 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2023-12-21 15:41:59,528 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.12 03:41:59 BoogieIcfgContainer [2023-12-21 15:41:59,528 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-12-21 15:41:59,529 INFO L158 Benchmark]: Toolchain (without parser) took 873656.55ms. Allocated memory was 208.7MB in the beginning and 361.8MB in the end (delta: 153.1MB). Free memory was 143.6MB in the beginning and 111.9MB in the end (delta: 31.7MB). Peak memory consumption was 233.8MB. Max. memory is 8.0GB. [2023-12-21 15:41:59,529 INFO L158 Benchmark]: CDTParser took 0.15ms. Allocated memory is still 208.7MB. Free memory is still 158.6MB. There was no memory consumed. Max. memory is 8.0GB. [2023-12-21 15:41:59,529 INFO L158 Benchmark]: CACSL2BoogieTranslator took 184.41ms. Allocated memory is still 208.7MB. Free memory was 143.4MB in the beginning and 132.1MB in the end (delta: 11.4MB). Peak memory consumption was 11.5MB. Max. memory is 8.0GB. [2023-12-21 15:41:59,529 INFO L158 Benchmark]: Boogie Procedure Inliner took 24.22ms. Allocated memory is still 208.7MB. Free memory was 131.8MB in the beginning and 130.3MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2023-12-21 15:41:59,529 INFO L158 Benchmark]: Boogie Preprocessor took 72.17ms. Allocated memory was 208.7MB in the beginning and 285.2MB in the end (delta: 76.5MB). Free memory was 130.3MB in the beginning and 252.3MB in the end (delta: -122.0MB). Peak memory consumption was 7.7MB. Max. memory is 8.0GB. [2023-12-21 15:41:59,529 INFO L158 Benchmark]: RCFGBuilder took 342.60ms. Allocated memory is still 285.2MB. Free memory was 252.3MB in the beginning and 238.1MB in the end (delta: 14.2MB). Peak memory consumption was 13.6MB. Max. memory is 8.0GB. [2023-12-21 15:41:59,530 INFO L158 Benchmark]: TraceAbstraction took 873028.80ms. Allocated memory was 285.2MB in the beginning and 361.8MB in the end (delta: 76.5MB). Free memory was 237.6MB in the beginning and 111.9MB in the end (delta: 125.7MB). Peak memory consumption was 250.2MB. Max. memory is 8.0GB. [2023-12-21 15:41:59,530 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.15ms. Allocated memory is still 208.7MB. Free memory is still 158.6MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 184.41ms. Allocated memory is still 208.7MB. Free memory was 143.4MB in the beginning and 132.1MB in the end (delta: 11.4MB). Peak memory consumption was 11.5MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 24.22ms. Allocated memory is still 208.7MB. Free memory was 131.8MB in the beginning and 130.3MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 72.17ms. Allocated memory was 208.7MB in the beginning and 285.2MB in the end (delta: 76.5MB). Free memory was 130.3MB in the beginning and 252.3MB in the end (delta: -122.0MB). Peak memory consumption was 7.7MB. Max. memory is 8.0GB. * RCFGBuilder took 342.60ms. Allocated memory is still 285.2MB. Free memory was 252.3MB in the beginning and 238.1MB in the end (delta: 14.2MB). Peak memory consumption was 13.6MB. Max. memory is 8.0GB. * TraceAbstraction took 873028.80ms. Allocated memory was 285.2MB in the beginning and 361.8MB in the end (delta: 76.5MB). Free memory was 237.6MB in the beginning and 111.9MB in the end (delta: 125.7MB). Peak memory consumption was 250.2MB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - TimeoutResultAtElement [Line: 13]: Timeout (TraceAbstraction) Unable to prove that a call to reach_error is unreachable (line 13). Cancelled while NwaCegarLoop was constructing difference of abstraction (337states) and FLOYD_HOARE automaton (currently 199 states, 384 states before enhancement),while PredicateUnifier was unifying predicates,while executing Executor. - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 18 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 873.0s, OverallIterations: 13, TraceHistogramMax: 190, PathProgramHistogramMax: 7, EmptinessCheckTime: 0.0s, AutomataDifference: 728.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 215 SdHoareTripleChecker+Valid, 24.9s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 215 mSDsluCounter, 3867 SdHoareTripleChecker+Invalid, 21.3s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 3643 mSDsCounter, 14 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 50242 IncrementalHoareTripleChecker+Invalid, 50256 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 14 mSolverCounterUnsat, 224 mSDtfsCounter, 50242 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 2406 GetRequests, 1420 SyntacticMatches, 0 SemanticMatches, 985 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5760 ImplicationChecksByTransitivity, 788.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=337occurred in iteration=12, InterpolantAutomatonStates: 429, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 12 MinimizatonAttempts, 3 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.4s SsaConstructionTime, 22.7s SatisfiabilityAnalysisTime, 117.9s InterpolantComputationTime, 1143 NumberOfCodeBlocks, 874 NumberOfCodeBlocksAsserted, 134 NumberOfCheckSat, 2207 ConstructedInterpolants, 0 QuantifiedInterpolants, 4725 SizeOfPredicates, 0 NumberOfNonLiveVariables, 3686 ConjunctsInSsa, 408 ConjunctsInUnsatCore, 23 InterpolantComputations, 3 PerfectInterpolantSequences, 83270/131626 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Completed graceful shutdown