/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-industry-pattern/array_ptr_single_elem_init-2.i -------------------------------------------------------------------------------- This is Ultimate 0.2.4-tmp.fs.bitabs-eval-d9c3e40-m [2023-12-16 06:52:52,213 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-16 06:52:52,295 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Bitvector.epf [2023-12-16 06:52:52,300 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-16 06:52:52,300 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-16 06:52:52,333 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-16 06:52:52,334 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-16 06:52:52,334 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-16 06:52:52,335 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-12-16 06:52:52,339 INFO L153 SettingsManager]: * Use memory slicer=true [2023-12-16 06:52:52,339 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-16 06:52:52,340 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-16 06:52:52,340 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-16 06:52:52,341 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-16 06:52:52,342 INFO L153 SettingsManager]: * Use SBE=true [2023-12-16 06:52:52,342 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-16 06:52:52,342 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-16 06:52:52,343 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-16 06:52:52,343 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-16 06:52:52,343 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-16 06:52:52,343 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-16 06:52:52,344 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-16 06:52:52,344 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-16 06:52:52,344 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-12-16 06:52:52,344 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-12-16 06:52:52,345 INFO L153 SettingsManager]: * Allow undefined functions=false [2023-12-16 06:52:52,345 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-12-16 06:52:52,345 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-16 06:52:52,345 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-16 06:52:52,346 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-16 06:52:52,346 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-16 06:52:52,347 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-12-16 06:52:52,347 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-12-16 06:52:52,347 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-16 06:52:52,347 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-16 06:52:52,347 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-16 06:52:52,348 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-16 06:52:52,348 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-16 06:52:52,348 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2023-12-16 06:52:52,348 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-12-16 06:52:52,348 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-16 06:52:52,349 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-12-16 06:52:52,349 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-16 06:52:52,349 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-12-16 06:52:52,349 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-16 06:52:52,349 INFO L153 SettingsManager]: * Logic for external solver=AUFBV [2023-12-16 06:52:52,350 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2023-12-16 06:52:52,564 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-16 06:52:52,581 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-16 06:52:52,584 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-16 06:52:52,585 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-16 06:52:52,585 INFO L274 PluginConnector]: CDTParser initialized [2023-12-16 06:52:52,586 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/array-industry-pattern/array_ptr_single_elem_init-2.i [2023-12-16 06:52:53,673 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-16 06:52:53,832 INFO L384 CDTParser]: Found 1 translation units. [2023-12-16 06:52:53,833 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/array-industry-pattern/array_ptr_single_elem_init-2.i [2023-12-16 06:52:53,837 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/067b3286a/c910b2507b224eb2affb5bd1dd0098fe/FLAGe6a04180a [2023-12-16 06:52:53,848 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/067b3286a/c910b2507b224eb2affb5bd1dd0098fe [2023-12-16 06:52:53,850 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-16 06:52:53,851 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-12-16 06:52:53,852 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-16 06:52:53,852 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-16 06:52:53,856 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-16 06:52:53,856 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.12 06:52:53" (1/1) ... [2023-12-16 06:52:53,857 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3605e1b6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 06:52:53, skipping insertion in model container [2023-12-16 06:52:53,857 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.12 06:52:53" (1/1) ... [2023-12-16 06:52:53,876 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-16 06:52:53,997 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-industry-pattern/array_ptr_single_elem_init-2.i[821,834] [2023-12-16 06:52:54,018 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-16 06:52:54,029 INFO L202 MainTranslator]: Completed pre-run [2023-12-16 06:52:54,038 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-industry-pattern/array_ptr_single_elem_init-2.i[821,834] [2023-12-16 06:52:54,047 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-16 06:52:54,078 INFO L206 MainTranslator]: Completed translation [2023-12-16 06:52:54,079 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 06:52:54 WrapperNode [2023-12-16 06:52:54,079 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-16 06:52:54,080 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-16 06:52:54,080 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-16 06:52:54,080 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-16 06:52:54,085 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 06:52:54" (1/1) ... [2023-12-16 06:52:54,096 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 06:52:54" (1/1) ... [2023-12-16 06:52:54,110 INFO L138 Inliner]: procedures = 18, calls = 20, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 66 [2023-12-16 06:52:54,110 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-16 06:52:54,111 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-16 06:52:54,111 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-16 06:52:54,111 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-16 06:52:54,120 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 06:52:54" (1/1) ... [2023-12-16 06:52:54,120 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 06:52:54" (1/1) ... [2023-12-16 06:52:54,122 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 06:52:54" (1/1) ... [2023-12-16 06:52:54,132 INFO L175 MemorySlicer]: Split 9 memory accesses to 3 slices as follows [2, 2, 5]. 56 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2, 0, 0]. The 4 writes are split as follows [0, 1, 3]. [2023-12-16 06:52:54,132 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 06:52:54" (1/1) ... [2023-12-16 06:52:54,132 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 06:52:54" (1/1) ... [2023-12-16 06:52:54,138 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 06:52:54" (1/1) ... [2023-12-16 06:52:54,141 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 06:52:54" (1/1) ... [2023-12-16 06:52:54,142 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 06:52:54" (1/1) ... [2023-12-16 06:52:54,143 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 06:52:54" (1/1) ... [2023-12-16 06:52:54,145 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-16 06:52:54,146 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-16 06:52:54,146 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-16 06:52:54,146 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-16 06:52:54,147 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 06:52:54" (1/1) ... [2023-12-16 06:52:54,151 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-16 06:52:54,159 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-16 06:52:54,170 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) [2023-12-16 06:52:54,176 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 [2023-12-16 06:52:54,193 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-16 06:52:54,193 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2023-12-16 06:52:54,193 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#1 [2023-12-16 06:52:54,193 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#2 [2023-12-16 06:52:54,193 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-12-16 06:52:54,193 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#0 [2023-12-16 06:52:54,193 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#1 [2023-12-16 06:52:54,193 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#2 [2023-12-16 06:52:54,194 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-16 06:52:54,194 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-16 06:52:54,194 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-12-16 06:52:54,194 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#0 [2023-12-16 06:52:54,194 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#1 [2023-12-16 06:52:54,194 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#2 [2023-12-16 06:52:54,258 INFO L241 CfgBuilder]: Building ICFG [2023-12-16 06:52:54,259 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-16 06:52:54,373 INFO L282 CfgBuilder]: Performing block encoding [2023-12-16 06:52:54,409 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-16 06:52:54,409 INFO L309 CfgBuilder]: Removed 2 assume(true) statements. [2023-12-16 06:52:54,410 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.12 06:52:54 BoogieIcfgContainer [2023-12-16 06:52:54,410 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-16 06:52:54,412 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-16 06:52:54,412 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-16 06:52:54,414 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-16 06:52:54,415 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.12 06:52:53" (1/3) ... [2023-12-16 06:52:54,415 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4322f344 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.12 06:52:54, skipping insertion in model container [2023-12-16 06:52:54,415 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 06:52:54" (2/3) ... [2023-12-16 06:52:54,416 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4322f344 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.12 06:52:54, skipping insertion in model container [2023-12-16 06:52:54,416 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.12 06:52:54" (3/3) ... [2023-12-16 06:52:54,417 INFO L112 eAbstractionObserver]: Analyzing ICFG array_ptr_single_elem_init-2.i [2023-12-16 06:52:54,431 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-16 06:52:54,431 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-12-16 06:52:54,467 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-16 06:52:54,472 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;@dc06a36, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-16 06:52:54,472 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-12-16 06:52:54,476 INFO L276 IsEmpty]: Start isEmpty. Operand has 17 states, 15 states have (on average 1.6666666666666667) internal successors, (25), 16 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) [2023-12-16 06:52:54,480 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2023-12-16 06:52:54,480 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 06:52:54,481 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2023-12-16 06:52:54,481 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 06:52:54,485 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 06:52:54,485 INFO L85 PathProgramCache]: Analyzing trace with hash -1382620246, now seen corresponding path program 1 times [2023-12-16 06:52:54,496 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 06:52:54,497 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [821353797] [2023-12-16 06:52:54,497 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 06:52:54,497 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 [2023-12-16 06:52:54,498 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 06:52:54,504 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) [2023-12-16 06:52:54,508 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 [2023-12-16 06:52:54,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:52:54,598 INFO L262 TraceCheckSpWp]: Trace formula consists of 37 conjuncts, 1 conjunts are in the unsatisfiable core [2023-12-16 06:52:54,601 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 06:52:54,614 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 06:52:54,615 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 06:52:54,615 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 06:52:54,615 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [821353797] [2023-12-16 06:52:54,616 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [821353797] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 06:52:54,616 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 06:52:54,616 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-16 06:52:54,617 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [725718521] [2023-12-16 06:52:54,618 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 06:52:54,621 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-12-16 06:52:54,621 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 06:52:54,641 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-12-16 06:52:54,642 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-12-16 06:52:54,644 INFO L87 Difference]: Start difference. First operand has 17 states, 15 states have (on average 1.6666666666666667) internal successors, (25), 16 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) Second operand has 2 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 06:52:54,681 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 06:52:54,681 INFO L93 Difference]: Finished difference Result 27 states and 38 transitions. [2023-12-16 06:52:54,682 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-12-16 06:52:54,683 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 0 states have call successors, (0), 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 7 [2023-12-16 06:52:54,684 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 06:52:54,689 INFO L225 Difference]: With dead ends: 27 [2023-12-16 06:52:54,689 INFO L226 Difference]: Without dead ends: 15 [2023-12-16 06:52:54,691 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-12-16 06:52:54,694 INFO L413 NwaCegarLoop]: 20 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 20 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-16 06:52:54,695 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 20 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-16 06:52:54,706 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15 states. [2023-12-16 06:52:54,713 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15 to 15. [2023-12-16 06:52:54,714 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15 states, 14 states have (on average 1.4285714285714286) internal successors, (20), 14 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 06:52:54,715 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 20 transitions. [2023-12-16 06:52:54,715 INFO L78 Accepts]: Start accepts. Automaton has 15 states and 20 transitions. Word has length 7 [2023-12-16 06:52:54,716 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 06:52:54,716 INFO L495 AbstractCegarLoop]: Abstraction has 15 states and 20 transitions. [2023-12-16 06:52:54,716 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 06:52:54,716 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 20 transitions. [2023-12-16 06:52:54,716 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2023-12-16 06:52:54,717 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 06:52:54,717 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2023-12-16 06:52:54,719 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 [2023-12-16 06:52:54,918 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 [2023-12-16 06:52:54,919 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 06:52:54,919 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 06:52:54,919 INFO L85 PathProgramCache]: Analyzing trace with hash -2069719870, now seen corresponding path program 1 times [2023-12-16 06:52:54,920 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 06:52:54,920 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1299306660] [2023-12-16 06:52:54,920 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 06:52:54,920 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 [2023-12-16 06:52:54,921 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 06:52:54,922 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) [2023-12-16 06:52:54,932 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 [2023-12-16 06:52:54,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:52:54,973 INFO L262 TraceCheckSpWp]: Trace formula consists of 37 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-16 06:52:54,974 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 06:52:54,989 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 06:52:54,989 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 06:52:54,989 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 06:52:54,989 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1299306660] [2023-12-16 06:52:54,989 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1299306660] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 06:52:54,990 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 06:52:54,990 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-16 06:52:54,990 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [984863852] [2023-12-16 06:52:54,990 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 06:52:54,991 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-16 06:52:54,991 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 06:52:54,992 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-16 06:52:54,992 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 06:52:54,992 INFO L87 Difference]: Start difference. First operand 15 states and 20 transitions. Second operand has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 2 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 06:52:55,055 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 06:52:55,055 INFO L93 Difference]: Finished difference Result 32 states and 43 transitions. [2023-12-16 06:52:55,055 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-16 06:52:55,056 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 2 states have internal predecessors, (7), 0 states have call successors, (0), 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 7 [2023-12-16 06:52:55,056 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 06:52:55,057 INFO L225 Difference]: With dead ends: 32 [2023-12-16 06:52:55,057 INFO L226 Difference]: Without dead ends: 24 [2023-12-16 06:52:55,057 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 06:52:55,059 INFO L413 NwaCegarLoop]: 9 mSDtfsCounter, 10 mSDsluCounter, 6 mSDsCounter, 0 mSdLazyCounter, 23 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10 SdHoareTripleChecker+Valid, 15 SdHoareTripleChecker+Invalid, 25 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 23 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-16 06:52:55,059 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [10 Valid, 15 Invalid, 25 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 23 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-16 06:52:55,062 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24 states. [2023-12-16 06:52:55,071 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24 to 18. [2023-12-16 06:52:55,071 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18 states, 17 states have (on average 1.3529411764705883) internal successors, (23), 17 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 06:52:55,072 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 23 transitions. [2023-12-16 06:52:55,072 INFO L78 Accepts]: Start accepts. Automaton has 18 states and 23 transitions. Word has length 7 [2023-12-16 06:52:55,073 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 06:52:55,073 INFO L495 AbstractCegarLoop]: Abstraction has 18 states and 23 transitions. [2023-12-16 06:52:55,073 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 2 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 06:52:55,074 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 23 transitions. [2023-12-16 06:52:55,074 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2023-12-16 06:52:55,074 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 06:52:55,074 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 06:52:55,082 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2023-12-16 06:52:55,276 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 [2023-12-16 06:52:55,277 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 06:52:55,277 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 06:52:55,277 INFO L85 PathProgramCache]: Analyzing trace with hash -1677809430, now seen corresponding path program 1 times [2023-12-16 06:52:55,278 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 06:52:55,278 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1422090638] [2023-12-16 06:52:55,278 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 06:52:55,279 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 [2023-12-16 06:52:55,279 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 06:52:55,280 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) [2023-12-16 06:52:55,281 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 [2023-12-16 06:52:55,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:52:55,325 INFO L262 TraceCheckSpWp]: Trace formula consists of 54 conjuncts, 5 conjunts are in the unsatisfiable core [2023-12-16 06:52:55,328 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 06:52:55,365 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2023-12-16 06:52:55,418 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-12-16 06:52:55,419 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 06:52:55,419 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 06:52:55,419 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1422090638] [2023-12-16 06:52:55,419 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1422090638] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 06:52:55,419 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 06:52:55,419 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-16 06:52:55,420 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1619418385] [2023-12-16 06:52:55,420 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 06:52:55,420 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-16 06:52:55,420 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 06:52:55,421 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-16 06:52:55,421 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-16 06:52:55,421 INFO L87 Difference]: Start difference. First operand 18 states and 23 transitions. Second operand has 4 states, 4 states have (on average 3.5) internal successors, (14), 4 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 06:52:55,496 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 06:52:55,497 INFO L93 Difference]: Finished difference Result 38 states and 50 transitions. [2023-12-16 06:52:55,497 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-16 06:52:55,497 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 3.5) internal successors, (14), 4 states have internal predecessors, (14), 0 states have call successors, (0), 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 15 [2023-12-16 06:52:55,497 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 06:52:55,498 INFO L225 Difference]: With dead ends: 38 [2023-12-16 06:52:55,498 INFO L226 Difference]: Without dead ends: 22 [2023-12-16 06:52:55,498 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-16 06:52:55,499 INFO L413 NwaCegarLoop]: 15 mSDtfsCounter, 4 mSDsluCounter, 20 mSDsCounter, 0 mSdLazyCounter, 27 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 35 SdHoareTripleChecker+Invalid, 27 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 27 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-16 06:52:55,500 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 35 Invalid, 27 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 27 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-16 06:52:55,500 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22 states. [2023-12-16 06:52:55,503 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22 to 20. [2023-12-16 06:52:55,503 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) [2023-12-16 06:52:55,503 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 25 transitions. [2023-12-16 06:52:55,503 INFO L78 Accepts]: Start accepts. Automaton has 20 states and 25 transitions. Word has length 15 [2023-12-16 06:52:55,504 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 06:52:55,504 INFO L495 AbstractCegarLoop]: Abstraction has 20 states and 25 transitions. [2023-12-16 06:52:55,504 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 3.5) internal successors, (14), 4 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 06:52:55,504 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 25 transitions. [2023-12-16 06:52:55,504 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2023-12-16 06:52:55,505 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 06:52:55,505 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 06:52:55,508 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 [2023-12-16 06:52:55,705 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 [2023-12-16 06:52:55,706 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 06:52:55,706 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 06:52:55,706 INFO L85 PathProgramCache]: Analyzing trace with hash 2030351852, now seen corresponding path program 1 times [2023-12-16 06:52:55,707 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 06:52:55,707 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [105455800] [2023-12-16 06:52:55,707 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 06:52:55,707 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 [2023-12-16 06:52:55,708 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 06:52:55,710 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) [2023-12-16 06:52:55,713 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 [2023-12-16 06:52:55,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:52:55,764 INFO L262 TraceCheckSpWp]: Trace formula consists of 48 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-16 06:52:55,765 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 06:52:55,797 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-12-16 06:52:55,797 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-16 06:52:55,846 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-12-16 06:52:55,846 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 06:52:55,846 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [105455800] [2023-12-16 06:52:55,846 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [105455800] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-16 06:52:55,848 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-16 06:52:55,848 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3] total 5 [2023-12-16 06:52:55,849 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2096833361] [2023-12-16 06:52:55,849 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-16 06:52:55,849 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-16 06:52:55,849 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 06:52:55,850 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-16 06:52:55,850 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2023-12-16 06:52:55,850 INFO L87 Difference]: Start difference. First operand 20 states and 25 transitions. Second operand has 6 states, 6 states have (on average 3.5) internal successors, (21), 5 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) [2023-12-16 06:52:55,995 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 06:52:55,996 INFO L93 Difference]: Finished difference Result 62 states and 82 transitions. [2023-12-16 06:52:55,996 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-16 06:52:55,996 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 3.5) internal successors, (21), 5 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 15 [2023-12-16 06:52:55,997 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 06:52:55,997 INFO L225 Difference]: With dead ends: 62 [2023-12-16 06:52:55,997 INFO L226 Difference]: Without dead ends: 52 [2023-12-16 06:52:55,998 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=23, Unknown=0, NotChecked=0, Total=42 [2023-12-16 06:52:55,998 INFO L413 NwaCegarLoop]: 10 mSDtfsCounter, 69 mSDsluCounter, 14 mSDsCounter, 0 mSdLazyCounter, 63 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 69 SdHoareTripleChecker+Valid, 24 SdHoareTripleChecker+Invalid, 75 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 63 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-16 06:52:55,999 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [69 Valid, 24 Invalid, 75 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 63 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-16 06:52:55,999 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52 states. [2023-12-16 06:52:56,003 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52 to 47. [2023-12-16 06:52:56,004 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 47 states, 46 states have (on average 1.326086956521739) internal successors, (61), 46 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) [2023-12-16 06:52:56,004 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47 states to 47 states and 61 transitions. [2023-12-16 06:52:56,005 INFO L78 Accepts]: Start accepts. Automaton has 47 states and 61 transitions. Word has length 15 [2023-12-16 06:52:56,005 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 06:52:56,005 INFO L495 AbstractCegarLoop]: Abstraction has 47 states and 61 transitions. [2023-12-16 06:52:56,005 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 3.5) internal successors, (21), 5 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) [2023-12-16 06:52:56,005 INFO L276 IsEmpty]: Start isEmpty. Operand 47 states and 61 transitions. [2023-12-16 06:52:56,006 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2023-12-16 06:52:56,006 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 06:52:56,006 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 3, 2, 2, 1, 1, 1, 1, 1, 1] [2023-12-16 06:52:56,014 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 [2023-12-16 06:52:56,214 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 [2023-12-16 06:52:56,214 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 06:52:56,215 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 06:52:56,215 INFO L85 PathProgramCache]: Analyzing trace with hash 1681832322, now seen corresponding path program 2 times [2023-12-16 06:52:56,215 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 06:52:56,215 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1758773823] [2023-12-16 06:52:56,215 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-12-16 06:52:56,216 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 [2023-12-16 06:52:56,216 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 06:52:56,217 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) [2023-12-16 06:52:56,218 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 [2023-12-16 06:52:56,305 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-12-16 06:52:56,306 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-12-16 06:52:56,307 INFO L262 TraceCheckSpWp]: Trace formula consists of 75 conjuncts, 6 conjunts are in the unsatisfiable core [2023-12-16 06:52:56,309 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 06:52:56,385 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 0 proven. 34 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2023-12-16 06:52:56,385 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-16 06:52:56,527 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 0 proven. 34 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2023-12-16 06:52:56,527 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 06:52:56,527 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1758773823] [2023-12-16 06:52:56,527 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1758773823] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-16 06:52:56,527 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-16 06:52:56,527 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 11 [2023-12-16 06:52:56,528 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [832386634] [2023-12-16 06:52:56,528 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-16 06:52:56,528 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-12-16 06:52:56,528 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 06:52:56,529 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-12-16 06:52:56,529 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=86, Unknown=0, NotChecked=0, Total=132 [2023-12-16 06:52:56,530 INFO L87 Difference]: Start difference. First operand 47 states and 61 transitions. Second operand has 12 states, 12 states have (on average 4.25) internal successors, (51), 11 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) [2023-12-16 06:52:57,035 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 06:52:57,035 INFO L93 Difference]: Finished difference Result 131 states and 177 transitions. [2023-12-16 06:52:57,035 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-12-16 06:52:57,036 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 4.25) internal successors, (51), 11 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2023-12-16 06:52:57,036 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 06:52:57,038 INFO L225 Difference]: With dead ends: 131 [2023-12-16 06:52:57,038 INFO L226 Difference]: Without dead ends: 118 [2023-12-16 06:52:57,039 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 68 GetRequests, 54 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=94, Invalid=146, Unknown=0, NotChecked=0, Total=240 [2023-12-16 06:52:57,039 INFO L413 NwaCegarLoop]: 16 mSDtfsCounter, 245 mSDsluCounter, 68 mSDsCounter, 0 mSdLazyCounter, 315 mSolverCounterSat, 47 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 245 SdHoareTripleChecker+Valid, 84 SdHoareTripleChecker+Invalid, 362 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 47 IncrementalHoareTripleChecker+Valid, 315 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-12-16 06:52:57,040 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [245 Valid, 84 Invalid, 362 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [47 Valid, 315 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-12-16 06:52:57,040 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 118 states. [2023-12-16 06:52:57,049 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 118 to 104. [2023-12-16 06:52:57,049 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 104 states, 103 states have (on average 1.3203883495145632) internal successors, (136), 103 states have internal predecessors, (136), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 06:52:57,050 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 104 states to 104 states and 136 transitions. [2023-12-16 06:52:57,050 INFO L78 Accepts]: Start accepts. Automaton has 104 states and 136 transitions. Word has length 33 [2023-12-16 06:52:57,051 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 06:52:57,051 INFO L495 AbstractCegarLoop]: Abstraction has 104 states and 136 transitions. [2023-12-16 06:52:57,051 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 4.25) internal successors, (51), 11 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) [2023-12-16 06:52:57,051 INFO L276 IsEmpty]: Start isEmpty. Operand 104 states and 136 transitions. [2023-12-16 06:52:57,052 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2023-12-16 06:52:57,053 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 06:52:57,053 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 10, 10, 6, 5, 5, 1, 1, 1, 1, 1, 1] [2023-12-16 06:52:57,060 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 (6)] Ended with exit code 0 [2023-12-16 06:52:57,255 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 [2023-12-16 06:52:57,256 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 06:52:57,256 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 06:52:57,256 INFO L85 PathProgramCache]: Analyzing trace with hash 600957812, now seen corresponding path program 3 times [2023-12-16 06:52:57,257 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 06:52:57,257 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1969540030] [2023-12-16 06:52:57,257 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2023-12-16 06:52:57,257 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 [2023-12-16 06:52:57,257 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 06:52:57,258 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) [2023-12-16 06:52:57,260 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 [2023-12-16 06:52:57,333 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 6 check-sat command(s) [2023-12-16 06:52:57,333 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-12-16 06:52:57,335 INFO L262 TraceCheckSpWp]: Trace formula consists of 92 conjuncts, 7 conjunts are in the unsatisfiable core [2023-12-16 06:52:57,337 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 06:52:57,402 INFO L134 CoverageAnalysis]: Checked inductivity of 275 backedges. 0 proven. 40 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2023-12-16 06:52:57,402 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-16 06:52:57,501 INFO L134 CoverageAnalysis]: Checked inductivity of 275 backedges. 0 proven. 40 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2023-12-16 06:52:57,501 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 06:52:57,501 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1969540030] [2023-12-16 06:52:57,501 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1969540030] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-16 06:52:57,501 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-16 06:52:57,501 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 14 [2023-12-16 06:52:57,502 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1357511092] [2023-12-16 06:52:57,502 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-16 06:52:57,503 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2023-12-16 06:52:57,503 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 06:52:57,504 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2023-12-16 06:52:57,506 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=61, Invalid=121, Unknown=0, NotChecked=0, Total=182 [2023-12-16 06:52:57,507 INFO L87 Difference]: Start difference. First operand 104 states and 136 transitions. Second operand has 14 states, 14 states have (on average 3.2142857142857144) internal successors, (45), 14 states have internal predecessors, (45), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 06:52:58,029 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 06:52:58,029 INFO L93 Difference]: Finished difference Result 156 states and 207 transitions. [2023-12-16 06:52:58,029 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-12-16 06:52:58,029 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 3.2142857142857144) internal successors, (45), 14 states have internal predecessors, (45), 0 states have call successors, (0), 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 72 [2023-12-16 06:52:58,030 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 06:52:58,031 INFO L225 Difference]: With dead ends: 156 [2023-12-16 06:52:58,031 INFO L226 Difference]: Without dead ends: 149 [2023-12-16 06:52:58,031 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 153 GetRequests, 135 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=145, Invalid=235, Unknown=0, NotChecked=0, Total=380 [2023-12-16 06:52:58,032 INFO L413 NwaCegarLoop]: 18 mSDtfsCounter, 374 mSDsluCounter, 80 mSDsCounter, 0 mSdLazyCounter, 441 mSolverCounterSat, 65 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 374 SdHoareTripleChecker+Valid, 98 SdHoareTripleChecker+Invalid, 506 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 65 IncrementalHoareTripleChecker+Valid, 441 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-12-16 06:52:58,032 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [374 Valid, 98 Invalid, 506 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [65 Valid, 441 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-12-16 06:52:58,033 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 149 states. [2023-12-16 06:52:58,042 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 149 to 125. [2023-12-16 06:52:58,043 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 125 states, 124 states have (on average 1.2661290322580645) internal successors, (157), 124 states have internal predecessors, (157), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 06:52:58,044 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 125 states to 125 states and 157 transitions. [2023-12-16 06:52:58,044 INFO L78 Accepts]: Start accepts. Automaton has 125 states and 157 transitions. Word has length 72 [2023-12-16 06:52:58,044 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 06:52:58,044 INFO L495 AbstractCegarLoop]: Abstraction has 125 states and 157 transitions. [2023-12-16 06:52:58,044 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 3.2142857142857144) internal successors, (45), 14 states have internal predecessors, (45), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 06:52:58,045 INFO L276 IsEmpty]: Start isEmpty. Operand 125 states and 157 transitions. [2023-12-16 06:52:58,047 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2023-12-16 06:52:58,047 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 06:52:58,047 INFO L195 NwaCegarLoop]: trace histogram [13, 12, 12, 10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1] [2023-12-16 06:52:58,053 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (7)] Forceful destruction successful, exit code 0 [2023-12-16 06:52:58,253 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 [2023-12-16 06:52:58,253 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 06:52:58,254 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 06:52:58,254 INFO L85 PathProgramCache]: Analyzing trace with hash 219020866, now seen corresponding path program 4 times [2023-12-16 06:52:58,254 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 06:52:58,254 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [410384778] [2023-12-16 06:52:58,255 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2023-12-16 06:52:58,255 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 [2023-12-16 06:52:58,255 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 06:52:58,256 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) [2023-12-16 06:52:58,257 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 (8)] Waiting until timeout for monitored process [2023-12-16 06:52:58,348 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2023-12-16 06:52:58,349 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-12-16 06:52:58,352 INFO L262 TraceCheckSpWp]: Trace formula consists of 153 conjuncts, 12 conjunts are in the unsatisfiable core [2023-12-16 06:52:58,355 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 06:52:58,500 INFO L134 CoverageAnalysis]: Checked inductivity of 457 backedges. 0 proven. 235 refuted. 0 times theorem prover too weak. 222 trivial. 0 not checked. [2023-12-16 06:52:58,501 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-16 06:52:58,935 INFO L134 CoverageAnalysis]: Checked inductivity of 457 backedges. 0 proven. 235 refuted. 0 times theorem prover too weak. 222 trivial. 0 not checked. [2023-12-16 06:52:58,935 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 06:52:58,935 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [410384778] [2023-12-16 06:52:58,935 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [410384778] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-16 06:52:58,936 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-16 06:52:58,936 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 12] total 23 [2023-12-16 06:52:58,936 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [411539797] [2023-12-16 06:52:58,936 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-16 06:52:58,936 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2023-12-16 06:52:58,936 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 06:52:58,937 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2023-12-16 06:52:58,937 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=166, Invalid=386, Unknown=0, NotChecked=0, Total=552 [2023-12-16 06:52:58,938 INFO L87 Difference]: Start difference. First operand 125 states and 157 transitions. Second operand has 24 states, 24 states have (on average 4.625) internal successors, (111), 23 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 06:53:01,017 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 06:53:01,017 INFO L93 Difference]: Finished difference Result 308 states and 398 transitions. [2023-12-16 06:53:01,017 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2023-12-16 06:53:01,018 INFO L78 Accepts]: Start accepts. Automaton has has 24 states, 24 states have (on average 4.625) internal successors, (111), 23 states have internal predecessors, (111), 0 states have call successors, (0), 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 93 [2023-12-16 06:53:01,018 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 06:53:01,019 INFO L225 Difference]: With dead ends: 308 [2023-12-16 06:53:01,019 INFO L226 Difference]: Without dead ends: 265 [2023-12-16 06:53:01,020 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 194 GetRequests, 162 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=406, Invalid=716, Unknown=0, NotChecked=0, Total=1122 [2023-12-16 06:53:01,021 INFO L413 NwaCegarLoop]: 28 mSDtfsCounter, 931 mSDsluCounter, 284 mSDsCounter, 0 mSdLazyCounter, 1361 mSolverCounterSat, 188 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 931 SdHoareTripleChecker+Valid, 312 SdHoareTripleChecker+Invalid, 1549 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 188 IncrementalHoareTripleChecker+Valid, 1361 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2023-12-16 06:53:01,021 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [931 Valid, 312 Invalid, 1549 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [188 Valid, 1361 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2023-12-16 06:53:01,022 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 265 states. [2023-12-16 06:53:01,036 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 265 to 221. [2023-12-16 06:53:01,037 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 221 states, 220 states have (on average 1.3136363636363637) internal successors, (289), 220 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) [2023-12-16 06:53:01,038 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 221 states to 221 states and 289 transitions. [2023-12-16 06:53:01,038 INFO L78 Accepts]: Start accepts. Automaton has 221 states and 289 transitions. Word has length 93 [2023-12-16 06:53:01,039 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 06:53:01,039 INFO L495 AbstractCegarLoop]: Abstraction has 221 states and 289 transitions. [2023-12-16 06:53:01,039 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 24 states have (on average 4.625) internal successors, (111), 23 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 06:53:01,039 INFO L276 IsEmpty]: Start isEmpty. Operand 221 states and 289 transitions. [2023-12-16 06:53:01,043 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2023-12-16 06:53:01,043 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 06:53:01,043 INFO L195 NwaCegarLoop]: trace histogram [22, 22, 22, 22, 22, 13, 12, 12, 1, 1, 1, 1, 1, 1] [2023-12-16 06:53:01,050 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (8)] Forceful destruction successful, exit code 0 [2023-12-16 06:53:01,246 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 [2023-12-16 06:53:01,247 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 06:53:01,247 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 06:53:01,247 INFO L85 PathProgramCache]: Analyzing trace with hash -604595134, now seen corresponding path program 5 times [2023-12-16 06:53:01,248 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 06:53:01,248 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [178604398] [2023-12-16 06:53:01,248 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2023-12-16 06:53:01,248 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 [2023-12-16 06:53:01,249 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 06:53:01,250 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) [2023-12-16 06:53:01,252 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 [2023-12-16 06:53:01,478 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 23 check-sat command(s) [2023-12-16 06:53:01,478 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-12-16 06:53:01,483 INFO L262 TraceCheckSpWp]: Trace formula consists of 249 conjuncts, 14 conjunts are in the unsatisfiable core [2023-12-16 06:53:01,487 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 06:53:01,637 INFO L134 CoverageAnalysis]: Checked inductivity of 1399 backedges. 0 proven. 222 refuted. 0 times theorem prover too weak. 1177 trivial. 0 not checked. [2023-12-16 06:53:01,637 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-16 06:53:01,927 INFO L134 CoverageAnalysis]: Checked inductivity of 1399 backedges. 0 proven. 222 refuted. 0 times theorem prover too weak. 1177 trivial. 0 not checked. [2023-12-16 06:53:01,928 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 06:53:01,928 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [178604398] [2023-12-16 06:53:01,928 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [178604398] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-16 06:53:01,928 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-16 06:53:01,928 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 15] total 28 [2023-12-16 06:53:01,928 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [821812838] [2023-12-16 06:53:01,928 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-16 06:53:01,929 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2023-12-16 06:53:01,929 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 06:53:01,930 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2023-12-16 06:53:01,930 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=222, Invalid=534, Unknown=0, NotChecked=0, Total=756 [2023-12-16 06:53:01,930 INFO L87 Difference]: Start difference. First operand 221 states and 289 transitions. Second operand has 28 states, 28 states have (on average 3.107142857142857) internal successors, (87), 28 states have internal predecessors, (87), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 06:53:03,636 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 06:53:03,636 INFO L93 Difference]: Finished difference Result 339 states and 441 transitions. [2023-12-16 06:53:03,636 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2023-12-16 06:53:03,637 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 3.107142857142857) internal successors, (87), 28 states have internal predecessors, (87), 0 states have call successors, (0), 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 153 [2023-12-16 06:53:03,637 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 06:53:03,638 INFO L225 Difference]: With dead ends: 339 [2023-12-16 06:53:03,639 INFO L226 Difference]: Without dead ends: 317 [2023-12-16 06:53:03,639 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 329 GetRequests, 290 SyntacticMatches, 0 SemanticMatches, 39 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 78 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=586, Invalid=1054, Unknown=0, NotChecked=0, Total=1640 [2023-12-16 06:53:03,640 INFO L413 NwaCegarLoop]: 32 mSDtfsCounter, 1408 mSDsluCounter, 382 mSDsCounter, 0 mSdLazyCounter, 1871 mSolverCounterSat, 236 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1408 SdHoareTripleChecker+Valid, 414 SdHoareTripleChecker+Invalid, 2107 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 236 IncrementalHoareTripleChecker+Valid, 1871 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2023-12-16 06:53:03,640 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1408 Valid, 414 Invalid, 2107 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [236 Valid, 1871 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2023-12-16 06:53:03,641 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 317 states. [2023-12-16 06:53:03,666 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 317 to 263. [2023-12-16 06:53:03,667 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 263 states, 262 states have (on average 1.2633587786259541) internal successors, (331), 262 states have internal predecessors, (331), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 06:53:03,671 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 263 states to 263 states and 331 transitions. [2023-12-16 06:53:03,671 INFO L78 Accepts]: Start accepts. Automaton has 263 states and 331 transitions. Word has length 153 [2023-12-16 06:53:03,672 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 06:53:03,672 INFO L495 AbstractCegarLoop]: Abstraction has 263 states and 331 transitions. [2023-12-16 06:53:03,673 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 3.107142857142857) internal successors, (87), 28 states have internal predecessors, (87), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 06:53:03,673 INFO L276 IsEmpty]: Start isEmpty. Operand 263 states and 331 transitions. [2023-12-16 06:53:03,682 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 196 [2023-12-16 06:53:03,682 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 06:53:03,683 INFO L195 NwaCegarLoop]: trace histogram [27, 26, 26, 22, 22, 22, 22, 22, 1, 1, 1, 1, 1, 1] [2023-12-16 06:53:03,691 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (9)] Forceful destruction successful, exit code 0 [2023-12-16 06:53:03,887 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 [2023-12-16 06:53:03,888 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 06:53:03,888 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 06:53:03,888 INFO L85 PathProgramCache]: Analyzing trace with hash 591931266, now seen corresponding path program 6 times [2023-12-16 06:53:03,889 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 06:53:03,889 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1738535251] [2023-12-16 06:53:03,889 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2023-12-16 06:53:03,889 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 [2023-12-16 06:53:03,889 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 06:53:03,890 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) [2023-12-16 06:53:03,892 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 [2023-12-16 06:53:04,178 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 27 check-sat command(s) [2023-12-16 06:53:04,178 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-12-16 06:53:04,183 INFO L262 TraceCheckSpWp]: Trace formula consists of 291 conjuncts, 28 conjunts are in the unsatisfiable core [2023-12-16 06:53:04,188 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 06:53:04,603 INFO L134 CoverageAnalysis]: Checked inductivity of 2204 backedges. 0 proven. 1027 refuted. 0 times theorem prover too weak. 1177 trivial. 0 not checked. [2023-12-16 06:53:04,603 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-16 06:53:05,538 INFO L134 CoverageAnalysis]: Checked inductivity of 2204 backedges. 0 proven. 1027 refuted. 0 times theorem prover too weak. 1177 trivial. 0 not checked. [2023-12-16 06:53:05,538 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 06:53:05,538 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1738535251] [2023-12-16 06:53:05,538 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1738535251] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-16 06:53:05,538 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-16 06:53:05,539 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [29, 29] total 56 [2023-12-16 06:53:05,539 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [313728627] [2023-12-16 06:53:05,539 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-16 06:53:05,539 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 56 states [2023-12-16 06:53:05,539 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 06:53:05,541 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 56 interpolants. [2023-12-16 06:53:05,542 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=838, Invalid=2242, Unknown=0, NotChecked=0, Total=3080 [2023-12-16 06:53:05,542 INFO L87 Difference]: Start difference. First operand 263 states and 331 transitions. Second operand has 56 states, 56 states have (on average 3.0535714285714284) internal successors, (171), 56 states have internal predecessors, (171), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 06:53:11,888 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 06:53:11,888 INFO L93 Difference]: Finished difference Result 731 states and 959 transitions. [2023-12-16 06:53:11,888 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 57 states. [2023-12-16 06:53:11,889 INFO L78 Accepts]: Start accepts. Automaton has has 56 states, 56 states have (on average 3.0535714285714284) internal successors, (171), 56 states have internal predecessors, (171), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 195 [2023-12-16 06:53:11,889 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 06:53:11,891 INFO L225 Difference]: With dead ends: 731 [2023-12-16 06:53:11,891 INFO L226 Difference]: Without dead ends: 646 [2023-12-16 06:53:11,893 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 441 GetRequests, 360 SyntacticMatches, 0 SemanticMatches, 81 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 351 ImplicationChecksByTransitivity, 3.1s TimeCoverageRelationStatistics Valid=2350, Invalid=4456, Unknown=0, NotChecked=0, Total=6806 [2023-12-16 06:53:11,894 INFO L413 NwaCegarLoop]: 60 mSDtfsCounter, 6799 mSDsluCounter, 1502 mSDsCounter, 0 mSdLazyCounter, 7653 mSolverCounterSat, 1197 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6799 SdHoareTripleChecker+Valid, 1562 SdHoareTripleChecker+Invalid, 8850 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1197 IncrementalHoareTripleChecker+Valid, 7653 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.0s IncrementalHoareTripleChecker+Time [2023-12-16 06:53:11,894 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6799 Valid, 1562 Invalid, 8850 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1197 Valid, 7653 Invalid, 0 Unknown, 0 Unchecked, 4.0s Time] [2023-12-16 06:53:11,895 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 646 states. [2023-12-16 06:53:11,917 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 646 to 387. [2023-12-16 06:53:11,918 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 387 states, 386 states have (on average 1.217616580310881) internal successors, (470), 386 states have internal predecessors, (470), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 06:53:11,919 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 387 states to 387 states and 470 transitions. [2023-12-16 06:53:11,919 INFO L78 Accepts]: Start accepts. Automaton has 387 states and 470 transitions. Word has length 195 [2023-12-16 06:53:11,919 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 06:53:11,920 INFO L495 AbstractCegarLoop]: Abstraction has 387 states and 470 transitions. [2023-12-16 06:53:11,920 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 56 states, 56 states have (on average 3.0535714285714284) internal successors, (171), 56 states have internal predecessors, (171), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 06:53:11,920 INFO L276 IsEmpty]: Start isEmpty. Operand 387 states and 470 transitions. [2023-12-16 06:53:11,922 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 305 [2023-12-16 06:53:11,923 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 06:53:11,923 INFO L195 NwaCegarLoop]: trace histogram [55, 54, 54, 27, 27, 27, 27, 27, 1, 1, 1, 1, 1, 1] [2023-12-16 06:53:11,932 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 [2023-12-16 06:53:12,127 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 [2023-12-16 06:53:12,128 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 06:53:12,128 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 06:53:12,128 INFO L85 PathProgramCache]: Analyzing trace with hash 8852234, now seen corresponding path program 7 times [2023-12-16 06:53:12,129 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 06:53:12,129 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1349450041] [2023-12-16 06:53:12,129 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2023-12-16 06:53:12,129 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 [2023-12-16 06:53:12,129 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 06:53:12,130 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) [2023-12-16 06:53:12,133 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 [2023-12-16 06:53:12,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:53:12,300 INFO L262 TraceCheckSpWp]: Trace formula consists of 415 conjuncts, 29 conjunts are in the unsatisfiable core [2023-12-16 06:53:12,304 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 06:53:12,798 INFO L134 CoverageAnalysis]: Checked inductivity of 6183 backedges. 0 proven. 1782 refuted. 0 times theorem prover too weak. 4401 trivial. 0 not checked. [2023-12-16 06:53:12,798 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-16 06:53:14,809 INFO L134 CoverageAnalysis]: Checked inductivity of 6183 backedges. 0 proven. 1782 refuted. 0 times theorem prover too weak. 4401 trivial. 0 not checked. [2023-12-16 06:53:14,810 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 06:53:14,810 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1349450041] [2023-12-16 06:53:14,810 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1349450041] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-16 06:53:14,810 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-16 06:53:14,810 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [29, 29] total 57 [2023-12-16 06:53:14,810 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1639257710] [2023-12-16 06:53:14,810 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-16 06:53:14,811 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 58 states [2023-12-16 06:53:14,811 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 06:53:14,812 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 58 interpolants. [2023-12-16 06:53:14,813 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=897, Invalid=2409, Unknown=0, NotChecked=0, Total=3306 [2023-12-16 06:53:14,813 INFO L87 Difference]: Start difference. First operand 387 states and 470 transitions. Second operand has 58 states, 58 states have (on average 4.844827586206897) internal successors, (281), 57 states have internal predecessors, (281), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 06:53:28,352 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 06:53:28,352 INFO L93 Difference]: Finished difference Result 871 states and 1072 transitions. [2023-12-16 06:53:28,352 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 58 states. [2023-12-16 06:53:28,353 INFO L78 Accepts]: Start accepts. Automaton has has 58 states, 58 states have (on average 4.844827586206897) internal successors, (281), 57 states have internal predecessors, (281), 0 states have call successors, (0), 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 304 [2023-12-16 06:53:28,353 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 06:53:28,355 INFO L225 Difference]: With dead ends: 871 [2023-12-16 06:53:28,355 INFO L226 Difference]: Without dead ends: 702 [2023-12-16 06:53:28,360 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 633 GetRequests, 550 SyntacticMatches, 0 SemanticMatches, 83 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 351 ImplicationChecksByTransitivity, 10.7s TimeCoverageRelationStatistics Valid=2463, Invalid=4677, Unknown=0, NotChecked=0, Total=7140 [2023-12-16 06:53:28,361 INFO L413 NwaCegarLoop]: 62 mSDtfsCounter, 5347 mSDsluCounter, 1678 mSDsCounter, 0 mSdLazyCounter, 8226 mSolverCounterSat, 908 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5347 SdHoareTripleChecker+Valid, 1740 SdHoareTripleChecker+Invalid, 9134 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 908 IncrementalHoareTripleChecker+Valid, 8226 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.6s IncrementalHoareTripleChecker+Time [2023-12-16 06:53:28,361 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5347 Valid, 1740 Invalid, 9134 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [908 Valid, 8226 Invalid, 0 Unknown, 0 Unchecked, 4.6s Time] [2023-12-16 06:53:28,362 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 702 states. [2023-12-16 06:53:28,387 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 702 to 619. [2023-12-16 06:53:28,388 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 619 states, 618 states have (on average 1.2766990291262137) internal successors, (789), 618 states have internal predecessors, (789), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 06:53:28,390 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 619 states to 619 states and 789 transitions. [2023-12-16 06:53:28,390 INFO L78 Accepts]: Start accepts. Automaton has 619 states and 789 transitions. Word has length 304 [2023-12-16 06:53:28,390 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 06:53:28,390 INFO L495 AbstractCegarLoop]: Abstraction has 619 states and 789 transitions. [2023-12-16 06:53:28,390 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 58 states, 58 states have (on average 4.844827586206897) internal successors, (281), 57 states have internal predecessors, (281), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 06:53:28,391 INFO L276 IsEmpty]: Start isEmpty. Operand 619 states and 789 transitions. [2023-12-16 06:53:28,396 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 450 [2023-12-16 06:53:28,396 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 06:53:28,397 INFO L195 NwaCegarLoop]: trace histogram [56, 56, 56, 56, 56, 55, 54, 54, 1, 1, 1, 1, 1, 1] [2023-12-16 06:53:28,405 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 [2023-12-16 06:53:28,601 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 [2023-12-16 06:53:28,602 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 06:53:28,602 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 06:53:28,602 INFO L85 PathProgramCache]: Analyzing trace with hash -1908833534, now seen corresponding path program 8 times [2023-12-16 06:53:28,603 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 06:53:28,603 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [136567901] [2023-12-16 06:53:28,603 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-12-16 06:53:28,603 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 [2023-12-16 06:53:28,603 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 06:53:28,604 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) [2023-12-16 06:53:28,606 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 [2023-12-16 06:53:28,939 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-12-16 06:53:28,939 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-12-16 06:53:28,950 INFO L262 TraceCheckSpWp]: Trace formula consists of 647 conjuncts, 58 conjunts are in the unsatisfiable core [2023-12-16 06:53:28,955 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 06:53:30,459 INFO L134 CoverageAnalysis]: Checked inductivity of 12157 backedges. 0 proven. 7756 refuted. 0 times theorem prover too weak. 4401 trivial. 0 not checked. [2023-12-16 06:53:30,459 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-16 06:53:37,847 INFO L134 CoverageAnalysis]: Checked inductivity of 12157 backedges. 0 proven. 7756 refuted. 0 times theorem prover too weak. 4401 trivial. 0 not checked. [2023-12-16 06:53:37,848 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 06:53:37,848 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [136567901] [2023-12-16 06:53:37,848 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [136567901] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-16 06:53:37,848 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-16 06:53:37,848 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [58, 58] total 115 [2023-12-16 06:53:37,848 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [175770313] [2023-12-16 06:53:37,848 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-16 06:53:37,849 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 116 states [2023-12-16 06:53:37,849 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 06:53:37,851 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 116 interpolants. [2023-12-16 06:53:37,853 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3478, Invalid=9862, Unknown=0, NotChecked=0, Total=13340 [2023-12-16 06:53:37,854 INFO L87 Difference]: Start difference. First operand 619 states and 789 transitions. Second operand has 116 states, 116 states have (on average 4.922413793103448) internal successors, (571), 115 states have internal predecessors, (571), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Received shutdown request... [2023-12-16 06:54:03,275 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 [2023-12-16 06:54:03,275 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 (12)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2023-12-16 06:54:03,283 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 67 states. [2023-12-16 06:54:03,286 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 905 GetRequests, 782 SyntacticMatches, 0 SemanticMatches, 122 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 36 ImplicationChecksByTransitivity, 21.4s TimeCoverageRelationStatistics Valid=4406, Invalid=10846, Unknown=0, NotChecked=0, Total=15252 [2023-12-16 06:54:03,286 INFO L413 NwaCegarLoop]: 114 mSDtfsCounter, 9384 mSDsluCounter, 6398 mSDsCounter, 0 mSdLazyCounter, 22851 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9384 SdHoareTripleChecker+Valid, 6512 SdHoareTripleChecker+Invalid, 22852 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 22851 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 10.3s IncrementalHoareTripleChecker+Time [2023-12-16 06:54:03,286 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [9384 Valid, 6512 Invalid, 22852 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1 Valid, 22851 Invalid, 0 Unknown, 0 Unchecked, 10.3s Time] [2023-12-16 06:54:03,288 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-12-16 06:54:03,296 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 (12)] Ended with exit code 0 [2023-12-16 06:54:03,495 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 [2023-12-16 06:54:03,495 WARN L619 AbstractCegarLoop]: Verification canceled: while NwaCegarLoop was constructing difference of abstraction (619states) and FLOYD_HOARE automaton (currently 67 states, 116 states before enhancement),while PredicateComparison was comparing new predicate (quantifier-free) to 124 known predicates. [2023-12-16 06:54:03,498 INFO L445 BasicCegarLoop]: Path program histogram: [8, 1, 1, 1] [2023-12-16 06:54:03,500 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2023-12-16 06:54:03,501 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 16.12 06:54:03 BoogieIcfgContainer [2023-12-16 06:54:03,501 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-12-16 06:54:03,502 INFO L158 Benchmark]: Toolchain (without parser) took 69651.06ms. Allocated memory was 309.3MB in the beginning and 393.2MB in the end (delta: 83.9MB). Free memory was 254.8MB in the beginning and 146.2MB in the end (delta: 108.7MB). Peak memory consumption was 193.3MB. Max. memory is 8.0GB. [2023-12-16 06:54:03,502 INFO L158 Benchmark]: CDTParser took 0.15ms. Allocated memory is still 195.0MB. Free memory is still 143.2MB. There was no memory consumed. Max. memory is 8.0GB. [2023-12-16 06:54:03,502 INFO L158 Benchmark]: CACSL2BoogieTranslator took 227.37ms. Allocated memory is still 309.3MB. Free memory was 254.8MB in the beginning and 242.8MB in the end (delta: 12.1MB). Peak memory consumption was 11.5MB. Max. memory is 8.0GB. [2023-12-16 06:54:03,502 INFO L158 Benchmark]: Boogie Procedure Inliner took 30.63ms. Allocated memory is still 309.3MB. Free memory was 242.8MB in the beginning and 241.2MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2023-12-16 06:54:03,502 INFO L158 Benchmark]: Boogie Preprocessor took 34.33ms. Allocated memory is still 309.3MB. Free memory was 241.2MB in the beginning and 239.1MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2023-12-16 06:54:03,503 INFO L158 Benchmark]: RCFGBuilder took 264.25ms. Allocated memory is still 309.3MB. Free memory was 239.1MB in the beginning and 225.0MB in the end (delta: 14.2MB). Peak memory consumption was 13.6MB. Max. memory is 8.0GB. [2023-12-16 06:54:03,503 INFO L158 Benchmark]: TraceAbstraction took 69089.59ms. Allocated memory was 309.3MB in the beginning and 393.2MB in the end (delta: 83.9MB). Free memory was 224.4MB in the beginning and 146.2MB in the end (delta: 78.3MB). Peak memory consumption was 162.9MB. Max. memory is 8.0GB. [2023-12-16 06:54:03,504 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 195.0MB. Free memory is still 143.2MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 227.37ms. Allocated memory is still 309.3MB. Free memory was 254.8MB in the beginning and 242.8MB in the end (delta: 12.1MB). Peak memory consumption was 11.5MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 30.63ms. Allocated memory is still 309.3MB. Free memory was 242.8MB in the beginning and 241.2MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 34.33ms. Allocated memory is still 309.3MB. Free memory was 241.2MB in the beginning and 239.1MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * RCFGBuilder took 264.25ms. Allocated memory is still 309.3MB. Free memory was 239.1MB in the beginning and 225.0MB in the end (delta: 14.2MB). Peak memory consumption was 13.6MB. Max. memory is 8.0GB. * TraceAbstraction took 69089.59ms. Allocated memory was 309.3MB in the beginning and 393.2MB in the end (delta: 83.9MB). Free memory was 224.4MB in the beginning and 146.2MB in the end (delta: 78.3MB). Peak memory consumption was 162.9MB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - TimeoutResultAtElement [Line: 13]: Timeout (TraceAbstraction) Unable to prove that a call to reach_error is unreachable (line 13). Cancelled while NwaCegarLoop was constructing difference of abstraction (619states) and FLOYD_HOARE automaton (currently 67 states, 116 states before enhancement),while PredicateComparison was comparing new predicate (quantifier-free) to 124 known predicates. - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 17 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 69.0s, OverallIterations: 11, TraceHistogramMax: 56, PathProgramHistogramMax: 8, EmptinessCheckTime: 0.0s, AutomataDifference: 50.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 24571 SdHoareTripleChecker+Valid, 22.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 24571 mSDsluCounter, 10816 SdHoareTripleChecker+Invalid, 18.5s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 10432 mSDsCounter, 2656 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 42833 IncrementalHoareTripleChecker+Invalid, 45489 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 2656 mSolverCounterUnsat, 384 mSDtfsCounter, 42833 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 2779 GetRequests, 2380 SyntacticMatches, 0 SemanticMatches, 398 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 882 ImplicationChecksByTransitivity, 37.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=619occurred in iteration=10, InterpolantAutomatonStates: 210, 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, 10 MinimizatonAttempts, 491 StatesRemovedByMinimization, 9 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.2s SsaConstructionTime, 0.9s SatisfiabilityAnalysisTime, 14.4s InterpolantComputationTime, 1343 NumberOfCodeBlocks, 1318 NumberOfCodeBlocksAsserted, 66 NumberOfCheckSat, 2638 ConstructedInterpolants, 0 QuantifiedInterpolants, 6287 SizeOfPredicates, 4 NumberOfNonLiveVariables, 2098 ConjunctsInSsa, 165 ConjunctsInUnsatCore, 19 InterpolantComputations, 3 PerfectInterpolantSequences, 23247/45441 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