/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_Default.epf --cacsl2boogietranslator.use.bitabs.translation false -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/array-industry-pattern/array_single_elem_init.i
--------------------------------------------------------------------------------
This is Ultimate 0.2.4-tmp.fs.bitabs-eval-d9c3e40-m
[2023-12-20 07:19:12,121 INFO L188 SettingsManager]: Resetting all preferences to default values...
[2023-12-20 07:19:12,186 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf
[2023-12-20 07:19:12,190 WARN L101 SettingsManager]: Preference file contains the following unknown settings:
[2023-12-20 07:19:12,190 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class
[2023-12-20 07:19:12,211 INFO L130 SettingsManager]: Preferences different from defaults after loading the file:
[2023-12-20 07:19:12,212 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults:
[2023-12-20 07:19:12,212 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR;
[2023-12-20 07:19:12,213 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults:
[2023-12-20 07:19:12,216 INFO L153 SettingsManager]: * Use memory slicer=true
[2023-12-20 07:19:12,216 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults:
[2023-12-20 07:19:12,216 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS
[2023-12-20 07:19:12,217 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2023-12-20 07:19:12,217 INFO L153 SettingsManager]: * Create parallel compositions if possible=false
[2023-12-20 07:19:12,218 INFO L153 SettingsManager]: * Use SBE=true
[2023-12-20 07:19:12,218 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2023-12-20 07:19:12,218 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE
[2023-12-20 07:19:12,218 INFO L153 SettingsManager]: * sizeof long=4
[2023-12-20 07:19:12,218 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true
[2023-12-20 07:19:12,218 INFO L153 SettingsManager]: * sizeof POINTER=4
[2023-12-20 07:19:12,218 INFO L153 SettingsManager]: * Check division by zero=IGNORE
[2023-12-20 07:19:12,219 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE
[2023-12-20 07:19:12,219 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE
[2023-12-20 07:19:12,219 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE
[2023-12-20 07:19:12,219 INFO L153 SettingsManager]: * Allow undefined functions=false
[2023-12-20 07:19:12,219 INFO L153 SettingsManager]: * sizeof long double=12
[2023-12-20 07:19:12,220 INFO L153 SettingsManager]: * Check if freed pointer was valid=false
[2023-12-20 07:19:12,220 INFO L153 SettingsManager]: * Use constant arrays=true
[2023-12-20 07:19:12,220 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2023-12-20 07:19:12,220 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements
[2023-12-20 07:19:12,221 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true
[2023-12-20 07:19:12,221 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode
[2023-12-20 07:19:12,221 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2023-12-20 07:19:12,221 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2023-12-20 07:19:12,222 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP
[2023-12-20 07:19:12,222 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads
[2023-12-20 07:19:12,222 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL
[2023-12-20 07:19:12,222 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2023-12-20 07:19:12,222 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false
[2023-12-20 07:19:12,222 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET
[2023-12-20 07:19:12,222 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true
[2023-12-20 07:19:12,222 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO
[2023-12-20 07:19:12,223 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode
[2023-12-20 07:19:12,223 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$1
WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations
WARNING: All illegal access operations will be denied in a future release
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Use bitabs translation -> false
[2023-12-20 07:19:12,372 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp
[2023-12-20 07:19:12,390 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2023-12-20 07:19:12,392 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2023-12-20 07:19:12,395 INFO L270 PluginConnector]: Initializing CDTParser...
[2023-12-20 07:19:12,396 INFO L274 PluginConnector]: CDTParser initialized
[2023-12-20 07:19:12,396 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/array-industry-pattern/array_single_elem_init.i
[2023-12-20 07:19:13,378 INFO L533 CDTParser]: Created temporary CDT project at NULL
[2023-12-20 07:19:13,514 INFO L384 CDTParser]: Found 1 translation units.
[2023-12-20 07:19:13,515 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/array-industry-pattern/array_single_elem_init.i
[2023-12-20 07:19:13,521 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/946de2fdb/6670cd15985b4012918f46736987b5db/FLAG86048463a
[2023-12-20 07:19:13,535 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/946de2fdb/6670cd15985b4012918f46736987b5db
[2023-12-20 07:19:13,537 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2023-12-20 07:19:13,538 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements.
[2023-12-20 07:19:13,540 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2023-12-20 07:19:13,541 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator...
[2023-12-20 07:19:13,544 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized
[2023-12-20 07:19:13,545 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.12 07:19:13" (1/1) ...
[2023-12-20 07:19:13,545 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@404171fd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.12 07:19:13, skipping insertion in model container
[2023-12-20 07:19:13,545 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.12 07:19:13" (1/1) ...
[2023-12-20 07:19:13,565 INFO L177 MainTranslator]: Built tables and reachable declarations
[2023-12-20 07:19:13,662 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_single_elem_init.i[815,828]
[2023-12-20 07:19:13,674 INFO L209 PostProcessor]: Analyzing one entry point: main
[2023-12-20 07:19:13,681 INFO L202 MainTranslator]: Completed pre-run
[2023-12-20 07:19:13,690 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_single_elem_init.i[815,828]
[2023-12-20 07:19:13,695 INFO L209 PostProcessor]: Analyzing one entry point: main
[2023-12-20 07:19:13,703 INFO L206 MainTranslator]: Completed translation
[2023-12-20 07:19:13,703 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.12 07:19:13 WrapperNode
[2023-12-20 07:19:13,704 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2023-12-20 07:19:13,704 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner----------------------------
[2023-12-20 07:19:13,704 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner...
[2023-12-20 07:19:13,705 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized
[2023-12-20 07:19:13,709 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.12 07:19:13" (1/1) ...
[2023-12-20 07:19:13,713 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.12 07:19:13" (1/1) ...
[2023-12-20 07:19:13,724 INFO L138 Inliner]: procedures = 16, calls = 25, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 71
[2023-12-20 07:19:13,724 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner----------------------------
[2023-12-20 07:19:13,725 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2023-12-20 07:19:13,725 INFO L270 PluginConnector]: Initializing Boogie Preprocessor...
[2023-12-20 07:19:13,725 INFO L274 PluginConnector]: Boogie Preprocessor initialized
[2023-12-20 07:19:13,731 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.12 07:19:13" (1/1) ...
[2023-12-20 07:19:13,731 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.12 07:19:13" (1/1) ...
[2023-12-20 07:19:13,732 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.12 07:19:13" (1/1) ...
[2023-12-20 07:19:13,745 INFO L175 MemorySlicer]: Split 11 memory accesses to 4 slices as follows [2, 3, 4, 2]. 36 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2, 0, 0, 0]. The 6 writes are split as follows [0, 2, 3, 1].
[2023-12-20 07:19:13,745 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.12 07:19:13" (1/1) ...
[2023-12-20 07:19:13,745 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.12 07:19:13" (1/1) ...
[2023-12-20 07:19:13,749 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.12 07:19:13" (1/1) ...
[2023-12-20 07:19:13,750 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.12 07:19:13" (1/1) ...
[2023-12-20 07:19:13,751 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.12 07:19:13" (1/1) ...
[2023-12-20 07:19:13,752 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.12 07:19:13" (1/1) ...
[2023-12-20 07:19:13,753 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2023-12-20 07:19:13,754 INFO L112 PluginConnector]: ------------------------RCFGBuilder----------------------------
[2023-12-20 07:19:13,754 INFO L270 PluginConnector]: Initializing RCFGBuilder...
[2023-12-20 07:19:13,754 INFO L274 PluginConnector]: RCFGBuilder initialized
[2023-12-20 07:19:13,754 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.12 07:19:13" (1/1) ...
[2023-12-20 07:19:13,758 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2023-12-20 07:19:13,767 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2023-12-20 07:19:13,784 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)
[2023-12-20 07:19:13,790 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
[2023-12-20 07:19:13,803 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit
[2023-12-20 07:19:13,803 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0
[2023-12-20 07:19:13,803 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1
[2023-12-20 07:19:13,803 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2
[2023-12-20 07:19:13,803 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3
[2023-12-20 07:19:13,803 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack
[2023-12-20 07:19:13,803 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0
[2023-12-20 07:19:13,804 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1
[2023-12-20 07:19:13,804 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2
[2023-12-20 07:19:13,804 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3
[2023-12-20 07:19:13,804 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2023-12-20 07:19:13,804 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2023-12-20 07:19:13,804 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0
[2023-12-20 07:19:13,804 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1
[2023-12-20 07:19:13,804 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2
[2023-12-20 07:19:13,804 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3
[2023-12-20 07:19:13,804 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc
[2023-12-20 07:19:13,853 INFO L241 CfgBuilder]: Building ICFG
[2023-12-20 07:19:13,854 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation
[2023-12-20 07:19:13,947 INFO L282 CfgBuilder]: Performing block encoding
[2023-12-20 07:19:13,966 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2023-12-20 07:19:13,966 INFO L309 CfgBuilder]: Removed 2 assume(true) statements.
[2023-12-20 07:19:13,966 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.12 07:19:13 BoogieIcfgContainer
[2023-12-20 07:19:13,966 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2023-12-20 07:19:13,968 INFO L112 PluginConnector]: ------------------------TraceAbstraction----------------------------
[2023-12-20 07:19:13,968 INFO L270 PluginConnector]: Initializing TraceAbstraction...
[2023-12-20 07:19:13,971 INFO L274 PluginConnector]: TraceAbstraction initialized
[2023-12-20 07:19:13,971 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.12 07:19:13" (1/3) ...
[2023-12-20 07:19:13,972 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@42ea158b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.12 07:19:13, skipping insertion in model container
[2023-12-20 07:19:13,972 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.12 07:19:13" (2/3) ...
[2023-12-20 07:19:13,972 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@42ea158b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.12 07:19:13, skipping insertion in model container
[2023-12-20 07:19:13,972 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.12 07:19:13" (3/3) ...
[2023-12-20 07:19:13,973 INFO L112 eAbstractionObserver]: Analyzing ICFG array_single_elem_init.i
[2023-12-20 07:19:13,986 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2023-12-20 07:19:13,987 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations.
[2023-12-20 07:19:14,019 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ========
[2023-12-20 07:19:14,024 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;@6fe750f4, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms]
[2023-12-20 07:19:14,025 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations.
[2023-12-20 07:19:14,027 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)
[2023-12-20 07:19:14,031 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8
[2023-12-20 07:19:14,031 INFO L187 NwaCegarLoop]: Found error trace
[2023-12-20 07:19:14,031 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1]
[2023-12-20 07:19:14,032 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-20 07:19:14,035 INFO L160 PredicateUnifier]: Initialized classic predicate unifier
[2023-12-20 07:19:14,035 INFO L85 PathProgramCache]: Analyzing trace with hash -1382620246, now seen corresponding path program 1 times
[2023-12-20 07:19:14,042 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-12-20 07:19:14,042 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1710287100]
[2023-12-20 07:19:14,042 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-20 07:19:14,042 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-12-20 07:19:14,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-20 07:19:14,175 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2023-12-20 07:19:14,175 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-12-20 07:19:14,175 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1710287100]
[2023-12-20 07:19:14,176 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1710287100] provided 1 perfect and 0 imperfect interpolant sequences
[2023-12-20 07:19:14,176 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-12-20 07:19:14,176 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2023-12-20 07:19:14,178 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1714253264]
[2023-12-20 07:19:14,178 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-20 07:19:14,180 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states
[2023-12-20 07:19:14,181 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-12-20 07:19:14,204 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants.
[2023-12-20 07:19:14,205 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2
[2023-12-20 07:19:14,206 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)
[2023-12-20 07:19:14,242 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-20 07:19:14,242 INFO L93 Difference]: Finished difference Result 27 states and 38 transitions.
[2023-12-20 07:19:14,244 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states.
[2023-12-20 07:19:14,245 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
[2023-12-20 07:19:14,245 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-20 07:19:14,250 INFO L225 Difference]: With dead ends: 27
[2023-12-20 07:19:14,250 INFO L226 Difference]: Without dead ends: 15
[2023-12-20 07:19:14,251 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2
[2023-12-20 07:19:14,283 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
[2023-12-20 07:19:14,284 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]
[2023-12-20 07:19:14,295 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15 states.
[2023-12-20 07:19:14,303 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15 to 15.
[2023-12-20 07:19:14,304 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)
[2023-12-20 07:19:14,305 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 20 transitions.
[2023-12-20 07:19:14,306 INFO L78 Accepts]: Start accepts. Automaton has 15 states and 20 transitions. Word has length 7
[2023-12-20 07:19:14,306 INFO L84 Accepts]: Finished accepts. word is rejected.
[2023-12-20 07:19:14,307 INFO L495 AbstractCegarLoop]: Abstraction has 15 states and 20 transitions.
[2023-12-20 07:19:14,307 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)
[2023-12-20 07:19:14,307 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 20 transitions.
[2023-12-20 07:19:14,307 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8
[2023-12-20 07:19:14,307 INFO L187 NwaCegarLoop]: Found error trace
[2023-12-20 07:19:14,308 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1]
[2023-12-20 07:19:14,308 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0
[2023-12-20 07:19:14,308 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-20 07:19:14,309 INFO L160 PredicateUnifier]: Initialized classic predicate unifier
[2023-12-20 07:19:14,309 INFO L85 PathProgramCache]: Analyzing trace with hash -2069719870, now seen corresponding path program 1 times
[2023-12-20 07:19:14,309 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-12-20 07:19:14,310 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1211614482]
[2023-12-20 07:19:14,310 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-20 07:19:14,310 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-12-20 07:19:14,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-20 07:19:14,404 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2023-12-20 07:19:14,405 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-12-20 07:19:14,405 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1211614482]
[2023-12-20 07:19:14,405 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1211614482] provided 1 perfect and 0 imperfect interpolant sequences
[2023-12-20 07:19:14,405 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-12-20 07:19:14,405 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2023-12-20 07:19:14,405 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [24393811]
[2023-12-20 07:19:14,406 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-20 07:19:14,407 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2023-12-20 07:19:14,410 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-12-20 07:19:14,411 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2023-12-20 07:19:14,411 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2023-12-20 07:19:14,412 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)
[2023-12-20 07:19:14,454 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-20 07:19:14,454 INFO L93 Difference]: Finished difference Result 32 states and 43 transitions.
[2023-12-20 07:19:14,454 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states.
[2023-12-20 07:19:14,454 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
[2023-12-20 07:19:14,455 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-20 07:19:14,455 INFO L225 Difference]: With dead ends: 32
[2023-12-20 07:19:14,456 INFO L226 Difference]: Without dead ends: 24
[2023-12-20 07:19:14,456 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2023-12-20 07:19:14,457 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, 0.0s IncrementalHoareTripleChecker+Time
[2023-12-20 07:19:14,458 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [10 Valid, 15 Invalid, 25 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 23 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2023-12-20 07:19:14,459 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24 states.
[2023-12-20 07:19:14,464 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24 to 18.
[2023-12-20 07:19:14,464 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)
[2023-12-20 07:19:14,465 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 23 transitions.
[2023-12-20 07:19:14,465 INFO L78 Accepts]: Start accepts. Automaton has 18 states and 23 transitions. Word has length 7
[2023-12-20 07:19:14,465 INFO L84 Accepts]: Finished accepts. word is rejected.
[2023-12-20 07:19:14,465 INFO L495 AbstractCegarLoop]: Abstraction has 18 states and 23 transitions.
[2023-12-20 07:19:14,465 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)
[2023-12-20 07:19:14,465 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 23 transitions.
[2023-12-20 07:19:14,466 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16
[2023-12-20 07:19:14,466 INFO L187 NwaCegarLoop]: Found error trace
[2023-12-20 07:19:14,466 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2023-12-20 07:19:14,466 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1
[2023-12-20 07:19:14,467 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-20 07:19:14,468 INFO L160 PredicateUnifier]: Initialized classic predicate unifier
[2023-12-20 07:19:14,468 INFO L85 PathProgramCache]: Analyzing trace with hash -1677809430, now seen corresponding path program 1 times
[2023-12-20 07:19:14,468 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-12-20 07:19:14,468 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [128377808]
[2023-12-20 07:19:14,468 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-20 07:19:14,468 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-12-20 07:19:14,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-20 07:19:14,619 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked.
[2023-12-20 07:19:14,619 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-12-20 07:19:14,620 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [128377808]
[2023-12-20 07:19:14,620 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [128377808] provided 1 perfect and 0 imperfect interpolant sequences
[2023-12-20 07:19:14,620 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-12-20 07:19:14,620 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2023-12-20 07:19:14,620 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [709169741]
[2023-12-20 07:19:14,620 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-20 07:19:14,621 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2023-12-20 07:19:14,621 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-12-20 07:19:14,622 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2023-12-20 07:19:14,623 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2023-12-20 07:19:14,624 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)
[2023-12-20 07:19:14,673 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-20 07:19:14,673 INFO L93 Difference]: Finished difference Result 38 states and 50 transitions.
[2023-12-20 07:19:14,674 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states.
[2023-12-20 07:19:14,676 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
[2023-12-20 07:19:14,676 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-20 07:19:14,679 INFO L225 Difference]: With dead ends: 38
[2023-12-20 07:19:14,679 INFO L226 Difference]: Without dead ends: 22
[2023-12-20 07:19:14,681 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20
[2023-12-20 07:19:14,683 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, 0.0s IncrementalHoareTripleChecker+Time
[2023-12-20 07:19:14,684 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 35 Invalid, 27 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 27 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2023-12-20 07:19:14,685 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22 states.
[2023-12-20 07:19:14,686 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22 to 20.
[2023-12-20 07:19:14,686 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)
[2023-12-20 07:19:14,687 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 25 transitions.
[2023-12-20 07:19:14,687 INFO L78 Accepts]: Start accepts. Automaton has 20 states and 25 transitions. Word has length 15
[2023-12-20 07:19:14,687 INFO L84 Accepts]: Finished accepts. word is rejected.
[2023-12-20 07:19:14,687 INFO L495 AbstractCegarLoop]: Abstraction has 20 states and 25 transitions.
[2023-12-20 07:19:14,687 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)
[2023-12-20 07:19:14,688 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 25 transitions.
[2023-12-20 07:19:14,688 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16
[2023-12-20 07:19:14,688 INFO L187 NwaCegarLoop]: Found error trace
[2023-12-20 07:19:14,688 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2023-12-20 07:19:14,688 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2
[2023-12-20 07:19:14,688 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-20 07:19:14,690 INFO L160 PredicateUnifier]: Initialized classic predicate unifier
[2023-12-20 07:19:14,691 INFO L85 PathProgramCache]: Analyzing trace with hash 2030351852, now seen corresponding path program 1 times
[2023-12-20 07:19:14,691 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-12-20 07:19:14,691 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1806852466]
[2023-12-20 07:19:14,691 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-20 07:19:14,691 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-12-20 07:19:14,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-20 07:19:14,752 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked.
[2023-12-20 07:19:14,752 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-12-20 07:19:14,753 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1806852466]
[2023-12-20 07:19:14,753 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1806852466] provided 0 perfect and 1 imperfect interpolant sequences
[2023-12-20 07:19:14,753 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [820495299]
[2023-12-20 07:19:14,753 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-20 07:19:14,753 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2023-12-20 07:19:14,753 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2023-12-20 07:19:14,755 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2023-12-20 07:19:14,788 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process
[2023-12-20 07:19:14,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-20 07:19:14,819 INFO L262 TraceCheckSpWp]: Trace formula consists of 88 conjuncts, 3 conjunts are in the unsatisfiable core
[2023-12-20 07:19:14,822 INFO L285 TraceCheckSpWp]: Computing forward predicates...
[2023-12-20 07:19:14,847 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked.
[2023-12-20 07:19:14,847 INFO L327 TraceCheckSpWp]: Computing backward predicates...
[2023-12-20 07:19:14,864 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked.
[2023-12-20 07:19:14,865 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [820495299] provided 0 perfect and 2 imperfect interpolant sequences
[2023-12-20 07:19:14,865 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences.
[2023-12-20 07:19:14,865 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3, 3] total 6
[2023-12-20 07:19:14,865 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [196377531]
[2023-12-20 07:19:14,865 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton
[2023-12-20 07:19:14,865 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states
[2023-12-20 07:19:14,865 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-12-20 07:19:14,866 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants.
[2023-12-20 07:19:14,866 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42
[2023-12-20 07:19:14,866 INFO L87 Difference]: Start difference. First operand 20 states and 25 transitions. Second operand has 7 states, 7 states have (on average 3.857142857142857) internal successors, (27), 6 states have internal predecessors, (27), 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)
[2023-12-20 07:19:14,940 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-20 07:19:14,940 INFO L93 Difference]: Finished difference Result 62 states and 82 transitions.
[2023-12-20 07:19:14,941 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states.
[2023-12-20 07:19:14,941 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 3.857142857142857) internal successors, (27), 6 states have internal predecessors, (27), 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
[2023-12-20 07:19:14,941 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-20 07:19:14,941 INFO L225 Difference]: With dead ends: 62
[2023-12-20 07:19:14,941 INFO L226 Difference]: Without dead ends: 52
[2023-12-20 07:19:14,942 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42
[2023-12-20 07:19:14,942 INFO L413 NwaCegarLoop]: 8 mSDtfsCounter, 43 mSDsluCounter, 20 mSDsCounter, 0 mSdLazyCounter, 61 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 43 SdHoareTripleChecker+Valid, 28 SdHoareTripleChecker+Invalid, 71 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 61 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2023-12-20 07:19:14,942 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [43 Valid, 28 Invalid, 71 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 61 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2023-12-20 07:19:14,943 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52 states.
[2023-12-20 07:19:14,946 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52 to 47.
[2023-12-20 07:19:14,946 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)
[2023-12-20 07:19:14,946 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47 states to 47 states and 61 transitions.
[2023-12-20 07:19:14,946 INFO L78 Accepts]: Start accepts. Automaton has 47 states and 61 transitions. Word has length 15
[2023-12-20 07:19:14,947 INFO L84 Accepts]: Finished accepts. word is rejected.
[2023-12-20 07:19:14,947 INFO L495 AbstractCegarLoop]: Abstraction has 47 states and 61 transitions.
[2023-12-20 07:19:14,947 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 3.857142857142857) internal successors, (27), 6 states have internal predecessors, (27), 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)
[2023-12-20 07:19:14,947 INFO L276 IsEmpty]: Start isEmpty. Operand 47 states and 61 transitions.
[2023-12-20 07:19:14,947 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34
[2023-12-20 07:19:14,947 INFO L187 NwaCegarLoop]: Found error trace
[2023-12-20 07:19:14,947 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 3, 2, 2, 1, 1, 1, 1, 1, 1]
[2023-12-20 07:19:14,956 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0
[2023-12-20 07:19:15,156 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2023-12-20 07:19:15,157 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-20 07:19:15,157 INFO L160 PredicateUnifier]: Initialized classic predicate unifier
[2023-12-20 07:19:15,157 INFO L85 PathProgramCache]: Analyzing trace with hash 1681832322, now seen corresponding path program 2 times
[2023-12-20 07:19:15,157 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-12-20 07:19:15,157 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [700709292]
[2023-12-20 07:19:15,157 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-20 07:19:15,157 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-12-20 07:19:15,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-20 07:19:15,259 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 0 proven. 34 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked.
[2023-12-20 07:19:15,260 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-12-20 07:19:15,260 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [700709292]
[2023-12-20 07:19:15,260 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [700709292] provided 0 perfect and 1 imperfect interpolant sequences
[2023-12-20 07:19:15,260 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [869340389]
[2023-12-20 07:19:15,260 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1
[2023-12-20 07:19:15,260 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2023-12-20 07:19:15,260 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2023-12-20 07:19:15,261 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2023-12-20 07:19:15,290 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process
[2023-12-20 07:19:15,325 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s)
[2023-12-20 07:19:15,325 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat
[2023-12-20 07:19:15,327 INFO L262 TraceCheckSpWp]: Trace formula consists of 134 conjuncts, 6 conjunts are in the unsatisfiable core
[2023-12-20 07:19:15,328 INFO L285 TraceCheckSpWp]: Computing forward predicates...
[2023-12-20 07:19:15,371 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 0 proven. 34 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked.
[2023-12-20 07:19:15,371 INFO L327 TraceCheckSpWp]: Computing backward predicates...
[2023-12-20 07:19:15,459 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 0 proven. 34 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked.
[2023-12-20 07:19:15,460 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [869340389] provided 0 perfect and 2 imperfect interpolant sequences
[2023-12-20 07:19:15,460 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences.
[2023-12-20 07:19:15,460 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6] total 12
[2023-12-20 07:19:15,460 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1530567761]
[2023-12-20 07:19:15,460 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton
[2023-12-20 07:19:15,461 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states
[2023-12-20 07:19:15,461 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-12-20 07:19:15,463 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants.
[2023-12-20 07:19:15,463 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=78, Invalid=78, Unknown=0, NotChecked=0, Total=156
[2023-12-20 07:19:15,463 INFO L87 Difference]: Start difference. First operand 47 states and 61 transitions. Second operand has 13 states, 13 states have (on average 4.384615384615385) internal successors, (57), 12 states have internal predecessors, (57), 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)
[2023-12-20 07:19:15,604 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-20 07:19:15,604 INFO L93 Difference]: Finished difference Result 131 states and 177 transitions.
[2023-12-20 07:19:15,605 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states.
[2023-12-20 07:19:15,605 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 4.384615384615385) internal successors, (57), 12 states have internal predecessors, (57), 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
[2023-12-20 07:19:15,605 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-20 07:19:15,610 INFO L225 Difference]: With dead ends: 131
[2023-12-20 07:19:15,610 INFO L226 Difference]: Without dead ends: 118
[2023-12-20 07:19:15,611 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 70 GetRequests, 59 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=78, Invalid=78, Unknown=0, NotChecked=0, Total=156
[2023-12-20 07:19:15,611 INFO L413 NwaCegarLoop]: 8 mSDtfsCounter, 232 mSDsluCounter, 26 mSDsCounter, 0 mSdLazyCounter, 108 mSolverCounterSat, 49 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 232 SdHoareTripleChecker+Valid, 34 SdHoareTripleChecker+Invalid, 157 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 49 IncrementalHoareTripleChecker+Valid, 108 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2023-12-20 07:19:15,611 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [232 Valid, 34 Invalid, 157 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [49 Valid, 108 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2023-12-20 07:19:15,612 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 118 states.
[2023-12-20 07:19:15,624 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 118 to 104.
[2023-12-20 07:19:15,626 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)
[2023-12-20 07:19:15,631 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 104 states to 104 states and 136 transitions.
[2023-12-20 07:19:15,633 INFO L78 Accepts]: Start accepts. Automaton has 104 states and 136 transitions. Word has length 33
[2023-12-20 07:19:15,633 INFO L84 Accepts]: Finished accepts. word is rejected.
[2023-12-20 07:19:15,634 INFO L495 AbstractCegarLoop]: Abstraction has 104 states and 136 transitions.
[2023-12-20 07:19:15,634 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 4.384615384615385) internal successors, (57), 12 states have internal predecessors, (57), 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)
[2023-12-20 07:19:15,634 INFO L276 IsEmpty]: Start isEmpty. Operand 104 states and 136 transitions.
[2023-12-20 07:19:15,635 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73
[2023-12-20 07:19:15,635 INFO L187 NwaCegarLoop]: Found error trace
[2023-12-20 07:19:15,635 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 10, 10, 6, 5, 5, 1, 1, 1, 1, 1, 1]
[2023-12-20 07:19:15,642 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0
[2023-12-20 07:19:15,842 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2023-12-20 07:19:15,843 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-20 07:19:15,843 INFO L160 PredicateUnifier]: Initialized classic predicate unifier
[2023-12-20 07:19:15,843 INFO L85 PathProgramCache]: Analyzing trace with hash 600957812, now seen corresponding path program 3 times
[2023-12-20 07:19:15,843 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-12-20 07:19:15,843 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [200160342]
[2023-12-20 07:19:15,843 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-20 07:19:15,843 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-12-20 07:19:15,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-20 07:19:16,067 INFO L134 CoverageAnalysis]: Checked inductivity of 275 backedges. 0 proven. 235 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked.
[2023-12-20 07:19:16,067 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-12-20 07:19:16,067 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [200160342]
[2023-12-20 07:19:16,067 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [200160342] provided 0 perfect and 1 imperfect interpolant sequences
[2023-12-20 07:19:16,067 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1758327675]
[2023-12-20 07:19:16,067 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2
[2023-12-20 07:19:16,067 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2023-12-20 07:19:16,068 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2023-12-20 07:19:16,068 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2023-12-20 07:19:16,071 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process
[2023-12-20 07:19:16,141 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 6 check-sat command(s)
[2023-12-20 07:19:16,141 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat
[2023-12-20 07:19:16,142 INFO L262 TraceCheckSpWp]: Trace formula consists of 160 conjuncts, 7 conjunts are in the unsatisfiable core
[2023-12-20 07:19:16,144 INFO L285 TraceCheckSpWp]: Computing forward predicates...
[2023-12-20 07:19:16,177 INFO L134 CoverageAnalysis]: Checked inductivity of 275 backedges. 0 proven. 40 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked.
[2023-12-20 07:19:16,177 INFO L327 TraceCheckSpWp]: Computing backward predicates...
[2023-12-20 07:19:16,297 INFO L134 CoverageAnalysis]: Checked inductivity of 275 backedges. 0 proven. 40 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked.
[2023-12-20 07:19:16,298 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1758327675] provided 0 perfect and 2 imperfect interpolant sequences
[2023-12-20 07:19:16,298 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences.
[2023-12-20 07:19:16,298 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 8, 8] total 20
[2023-12-20 07:19:16,298 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [53861880]
[2023-12-20 07:19:16,298 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton
[2023-12-20 07:19:16,299 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 20 states
[2023-12-20 07:19:16,299 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-12-20 07:19:16,299 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants.
[2023-12-20 07:19:16,299 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=190, Invalid=190, Unknown=0, NotChecked=0, Total=380
[2023-12-20 07:19:16,300 INFO L87 Difference]: Start difference. First operand 104 states and 136 transitions. Second operand has 20 states, 20 states have (on average 5.1) internal successors, (102), 20 states have internal predecessors, (102), 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)
[2023-12-20 07:19:16,503 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-20 07:19:16,503 INFO L93 Difference]: Finished difference Result 226 states and 302 transitions.
[2023-12-20 07:19:16,504 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states.
[2023-12-20 07:19:16,504 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 20 states have (on average 5.1) internal successors, (102), 20 states have internal predecessors, (102), 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
[2023-12-20 07:19:16,504 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-20 07:19:16,505 INFO L225 Difference]: With dead ends: 226
[2023-12-20 07:19:16,505 INFO L226 Difference]: Without dead ends: 204
[2023-12-20 07:19:16,506 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 154 GetRequests, 136 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 30 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=190, Invalid=190, Unknown=0, NotChecked=0, Total=380
[2023-12-20 07:19:16,507 INFO L413 NwaCegarLoop]: 9 mSDtfsCounter, 308 mSDsluCounter, 48 mSDsCounter, 0 mSdLazyCounter, 197 mSolverCounterSat, 32 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 308 SdHoareTripleChecker+Valid, 57 SdHoareTripleChecker+Invalid, 229 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 32 IncrementalHoareTripleChecker+Valid, 197 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time
[2023-12-20 07:19:16,509 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [308 Valid, 57 Invalid, 229 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [32 Valid, 197 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time]
[2023-12-20 07:19:16,511 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 204 states.
[2023-12-20 07:19:16,530 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 204 to 196.
[2023-12-20 07:19:16,531 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 196 states, 195 states have (on average 1.2769230769230768) internal successors, (249), 195 states have internal predecessors, (249), 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)
[2023-12-20 07:19:16,532 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 196 states to 196 states and 249 transitions.
[2023-12-20 07:19:16,532 INFO L78 Accepts]: Start accepts. Automaton has 196 states and 249 transitions. Word has length 72
[2023-12-20 07:19:16,532 INFO L84 Accepts]: Finished accepts. word is rejected.
[2023-12-20 07:19:16,532 INFO L495 AbstractCegarLoop]: Abstraction has 196 states and 249 transitions.
[2023-12-20 07:19:16,533 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 20 states have (on average 5.1) internal successors, (102), 20 states have internal predecessors, (102), 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)
[2023-12-20 07:19:16,533 INFO L276 IsEmpty]: Start isEmpty. Operand 196 states and 249 transitions.
[2023-12-20 07:19:16,540 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144
[2023-12-20 07:19:16,540 INFO L187 NwaCegarLoop]: Found error trace
[2023-12-20 07:19:16,540 INFO L195 NwaCegarLoop]: trace histogram [18, 17, 17, 17, 17, 17, 17, 17, 1, 1, 1, 1, 1, 1]
[2023-12-20 07:19:16,550 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0
[2023-12-20 07:19:16,746 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2023-12-20 07:19:16,746 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-20 07:19:16,747 INFO L160 PredicateUnifier]: Initialized classic predicate unifier
[2023-12-20 07:19:16,747 INFO L85 PathProgramCache]: Analyzing trace with hash 2031302636, now seen corresponding path program 4 times
[2023-12-20 07:19:16,747 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-12-20 07:19:16,747 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [931632579]
[2023-12-20 07:19:16,747 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-20 07:19:16,747 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-12-20 07:19:16,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-20 07:19:17,126 INFO L134 CoverageAnalysis]: Checked inductivity of 1139 backedges. 0 proven. 697 refuted. 0 times theorem prover too weak. 442 trivial. 0 not checked.
[2023-12-20 07:19:17,126 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-12-20 07:19:17,127 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [931632579]
[2023-12-20 07:19:17,127 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [931632579] provided 0 perfect and 1 imperfect interpolant sequences
[2023-12-20 07:19:17,127 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [579102696]
[2023-12-20 07:19:17,127 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST
[2023-12-20 07:19:17,127 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2023-12-20 07:19:17,127 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2023-12-20 07:19:17,128 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2023-12-20 07:19:17,154 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process
[2023-12-20 07:19:17,222 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s)
[2023-12-20 07:19:17,222 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat
[2023-12-20 07:19:17,223 INFO L262 TraceCheckSpWp]: Trace formula consists of 376 conjuncts, 19 conjunts are in the unsatisfiable core
[2023-12-20 07:19:17,234 INFO L285 TraceCheckSpWp]: Computing forward predicates...
[2023-12-20 07:19:17,325 INFO L134 CoverageAnalysis]: Checked inductivity of 1139 backedges. 0 proven. 697 refuted. 0 times theorem prover too weak. 442 trivial. 0 not checked.
[2023-12-20 07:19:17,325 INFO L327 TraceCheckSpWp]: Computing backward predicates...
[2023-12-20 07:19:17,783 INFO L134 CoverageAnalysis]: Checked inductivity of 1139 backedges. 0 proven. 697 refuted. 0 times theorem prover too weak. 442 trivial. 0 not checked.
[2023-12-20 07:19:17,783 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [579102696] provided 0 perfect and 2 imperfect interpolant sequences
[2023-12-20 07:19:17,783 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences.
[2023-12-20 07:19:17,783 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [19, 19, 19] total 38
[2023-12-20 07:19:17,783 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1224712742]
[2023-12-20 07:19:17,784 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton
[2023-12-20 07:19:17,784 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 39 states
[2023-12-20 07:19:17,784 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-12-20 07:19:17,785 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 39 interpolants.
[2023-12-20 07:19:17,785 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=741, Invalid=741, Unknown=0, NotChecked=0, Total=1482
[2023-12-20 07:19:17,786 INFO L87 Difference]: Start difference. First operand 196 states and 249 transitions. Second operand has 39 states, 39 states have (on average 4.794871794871795) internal successors, (187), 38 states have internal predecessors, (187), 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)
[2023-12-20 07:19:18,197 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-20 07:19:18,197 INFO L93 Difference]: Finished difference Result 462 states and 610 transitions.
[2023-12-20 07:19:18,197 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states.
[2023-12-20 07:19:18,198 INFO L78 Accepts]: Start accepts. Automaton has has 39 states, 39 states have (on average 4.794871794871795) internal successors, (187), 38 states have internal predecessors, (187), 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 143
[2023-12-20 07:19:18,198 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-20 07:19:18,199 INFO L225 Difference]: With dead ends: 462
[2023-12-20 07:19:18,199 INFO L226 Difference]: Without dead ends: 404
[2023-12-20 07:19:18,200 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 303 GetRequests, 266 SyntacticMatches, 0 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 68 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=741, Invalid=741, Unknown=0, NotChecked=0, Total=1482
[2023-12-20 07:19:18,201 INFO L413 NwaCegarLoop]: 8 mSDtfsCounter, 574 mSDsluCounter, 96 mSDsCounter, 0 mSdLazyCounter, 387 mSolverCounterSat, 141 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 574 SdHoareTripleChecker+Valid, 104 SdHoareTripleChecker+Invalid, 528 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 141 IncrementalHoareTripleChecker+Valid, 387 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time
[2023-12-20 07:19:18,201 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [574 Valid, 104 Invalid, 528 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [141 Valid, 387 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time]
[2023-12-20 07:19:18,201 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 404 states.
[2023-12-20 07:19:18,209 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 404 to 351.
[2023-12-20 07:19:18,209 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 351 states, 350 states have (on average 1.3171428571428572) internal successors, (461), 350 states have internal predecessors, (461), 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)
[2023-12-20 07:19:18,210 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 351 states to 351 states and 461 transitions.
[2023-12-20 07:19:18,210 INFO L78 Accepts]: Start accepts. Automaton has 351 states and 461 transitions. Word has length 143
[2023-12-20 07:19:18,210 INFO L84 Accepts]: Finished accepts. word is rejected.
[2023-12-20 07:19:18,210 INFO L495 AbstractCegarLoop]: Abstraction has 351 states and 461 transitions.
[2023-12-20 07:19:18,210 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 39 states, 39 states have (on average 4.794871794871795) internal successors, (187), 38 states have internal predecessors, (187), 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)
[2023-12-20 07:19:18,210 INFO L276 IsEmpty]: Start isEmpty. Operand 351 states and 461 transitions.
[2023-12-20 07:19:18,212 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 242
[2023-12-20 07:19:18,212 INFO L187 NwaCegarLoop]: Found error trace
[2023-12-20 07:19:18,212 INFO L195 NwaCegarLoop]: trace histogram [36, 36, 36, 36, 36, 19, 18, 18, 1, 1, 1, 1, 1, 1]
[2023-12-20 07:19:18,219 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0
[2023-12-20 07:19:18,417 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2023-12-20 07:19:18,417 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-20 07:19:18,417 INFO L160 PredicateUnifier]: Initialized classic predicate unifier
[2023-12-20 07:19:18,417 INFO L85 PathProgramCache]: Analyzing trace with hash -1731092606, now seen corresponding path program 5 times
[2023-12-20 07:19:18,418 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-12-20 07:19:18,418 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1350788577]
[2023-12-20 07:19:18,418 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-20 07:19:18,418 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-12-20 07:19:18,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-20 07:19:19,511 INFO L134 CoverageAnalysis]: Checked inductivity of 3681 backedges. 0 proven. 3186 refuted. 0 times theorem prover too weak. 495 trivial. 0 not checked.
[2023-12-20 07:19:19,511 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-12-20 07:19:19,511 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1350788577]
[2023-12-20 07:19:19,511 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1350788577] provided 0 perfect and 1 imperfect interpolant sequences
[2023-12-20 07:19:19,511 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [787296474]
[2023-12-20 07:19:19,511 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1
[2023-12-20 07:19:19,511 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2023-12-20 07:19:19,511 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2023-12-20 07:19:19,512 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2023-12-20 07:19:19,540 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process
[2023-12-20 07:19:29,123 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 37 check-sat command(s)
[2023-12-20 07:19:29,123 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat
[2023-12-20 07:19:29,138 INFO L262 TraceCheckSpWp]: Trace formula consists of 646 conjuncts, 38 conjunts are in the unsatisfiable core
[2023-12-20 07:19:29,142 INFO L285 TraceCheckSpWp]: Computing forward predicates...
[2023-12-20 07:19:29,329 INFO L134 CoverageAnalysis]: Checked inductivity of 3681 backedges. 0 proven. 3186 refuted. 0 times theorem prover too weak. 495 trivial. 0 not checked.
[2023-12-20 07:19:29,330 INFO L327 TraceCheckSpWp]: Computing backward predicates...
[2023-12-20 07:19:30,795 INFO L134 CoverageAnalysis]: Checked inductivity of 3681 backedges. 0 proven. 3186 refuted. 0 times theorem prover too weak. 495 trivial. 0 not checked.
[2023-12-20 07:19:30,796 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [787296474] provided 0 perfect and 2 imperfect interpolant sequences
[2023-12-20 07:19:30,796 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences.
[2023-12-20 07:19:30,796 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [38, 38, 38] total 76
[2023-12-20 07:19:30,796 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1664006072]
[2023-12-20 07:19:30,796 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton
[2023-12-20 07:19:30,797 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 77 states
[2023-12-20 07:19:30,797 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-12-20 07:19:30,798 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 77 interpolants.
[2023-12-20 07:19:30,800 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=2926, Invalid=2926, Unknown=0, NotChecked=0, Total=5852
[2023-12-20 07:19:30,800 INFO L87 Difference]: Start difference. First operand 351 states and 461 transitions. Second operand has 77 states, 77 states have (on average 4.896103896103896) internal successors, (377), 76 states have internal predecessors, (377), 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)
[2023-12-20 07:19:32,361 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-20 07:19:32,362 INFO L93 Difference]: Finished difference Result 883 states and 1201 transitions.
[2023-12-20 07:19:32,362 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 76 states.
[2023-12-20 07:19:32,362 INFO L78 Accepts]: Start accepts. Automaton has has 77 states, 77 states have (on average 4.896103896103896) internal successors, (377), 76 states have internal predecessors, (377), 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 241
[2023-12-20 07:19:32,363 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-20 07:19:32,364 INFO L225 Difference]: With dead ends: 883
[2023-12-20 07:19:32,364 INFO L226 Difference]: Without dead ends: 822
[2023-12-20 07:19:32,366 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 518 GetRequests, 443 SyntacticMatches, 0 SemanticMatches, 75 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 144 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=2926, Invalid=2926, Unknown=0, NotChecked=0, Total=5852
[2023-12-20 07:19:32,367 INFO L413 NwaCegarLoop]: 8 mSDtfsCounter, 2143 mSDsluCounter, 172 mSDsCounter, 0 mSdLazyCounter, 769 mSolverCounterSat, 501 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2143 SdHoareTripleChecker+Valid, 180 SdHoareTripleChecker+Invalid, 1270 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 501 IncrementalHoareTripleChecker+Valid, 769 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time
[2023-12-20 07:19:32,367 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2143 Valid, 180 Invalid, 1270 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [501 Valid, 769 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time]
[2023-12-20 07:19:32,368 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 822 states.
[2023-12-20 07:19:32,377 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 822 to 712.
[2023-12-20 07:19:32,378 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 712 states, 711 states have (on average 1.3164556962025316) internal successors, (936), 711 states have internal predecessors, (936), 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)
[2023-12-20 07:19:32,379 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 712 states to 712 states and 936 transitions.
[2023-12-20 07:19:32,379 INFO L78 Accepts]: Start accepts. Automaton has 712 states and 936 transitions. Word has length 241
[2023-12-20 07:19:32,380 INFO L84 Accepts]: Finished accepts. word is rejected.
[2023-12-20 07:19:32,380 INFO L495 AbstractCegarLoop]: Abstraction has 712 states and 936 transitions.
[2023-12-20 07:19:32,380 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 77 states, 77 states have (on average 4.896103896103896) internal successors, (377), 76 states have internal predecessors, (377), 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)
[2023-12-20 07:19:32,380 INFO L276 IsEmpty]: Start isEmpty. Operand 712 states and 936 transitions.
[2023-12-20 07:19:32,385 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 489
[2023-12-20 07:19:32,385 INFO L187 NwaCegarLoop]: Found error trace
[2023-12-20 07:19:32,386 INFO L195 NwaCegarLoop]: trace histogram [74, 74, 74, 74, 74, 38, 37, 37, 1, 1, 1, 1, 1, 1]
[2023-12-20 07:19:32,399 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0
[2023-12-20 07:19:32,596 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2023-12-20 07:19:32,596 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-20 07:19:32,597 INFO L160 PredicateUnifier]: Initialized classic predicate unifier
[2023-12-20 07:19:32,597 INFO L85 PathProgramCache]: Analyzing trace with hash -679372940, now seen corresponding path program 6 times
[2023-12-20 07:19:32,597 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-12-20 07:19:32,597 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1482548292]
[2023-12-20 07:19:32,597 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-20 07:19:32,597 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-12-20 07:19:32,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-20 07:19:36,470 INFO L134 CoverageAnalysis]: Checked inductivity of 15651 backedges. 0 proven. 13579 refuted. 0 times theorem prover too weak. 2072 trivial. 0 not checked.
[2023-12-20 07:19:36,470 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-12-20 07:19:36,470 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1482548292]
[2023-12-20 07:19:36,470 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1482548292] provided 0 perfect and 1 imperfect interpolant sequences
[2023-12-20 07:19:36,470 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1896518215]
[2023-12-20 07:19:36,471 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE
[2023-12-20 07:19:36,471 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2023-12-20 07:19:36,471 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2023-12-20 07:19:36,475 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2023-12-20 07:19:36,475 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process
Received shutdown request...
[2023-12-20 07:33:57,128 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Timeout while monitored process is still running, waiting 1000 ms for graceful end
[2023-12-20 07:33:57,128 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
[2023-12-20 07:33:58,136 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Forceful destruction successful, exit code 0
[2023-12-20 07:33:58,329 WARN L435 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forcibly destroying the process
[2023-12-20 07:33:58,357 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT
[2023-12-20 07:33:58,357 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences.
[2023-12-20 07:33:58,357 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [76] total 76
[2023-12-20 07:33:58,357 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [287366127]
[2023-12-20 07:33:58,357 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton
[2023-12-20 07:33:58,358 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 77 states
[2023-12-20 07:33:58,358 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-12-20 07:33:58,359 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 77 interpolants.
[2023-12-20 07:33:58,360 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 137
[2023-12-20 07:33:58,362 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=2926, Invalid=2926, Unknown=0, NotChecked=0, Total=5852
[2023-12-20 07:33:58,362 INFO L87 Difference]: Start difference. First operand 712 states and 936 transitions. Second operand has 77 states, 77 states have (on average 4.922077922077922) internal successors, (379), 76 states have internal predecessors, (379), 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)
[2023-12-20 07:33:58,363 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states.
[2023-12-20 07:33:58,364 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 76 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 75 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=2926, Invalid=2926, Unknown=0, NotChecked=0, Total=5852
[2023-12-20 07:33:58,364 INFO L413 NwaCegarLoop]: 0 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2023-12-20 07:33:58,364 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2023-12-20 07:33:58,365 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining)
[2023-12-20 07:33:58,365 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8
[2023-12-20 07:33:58,366 WARN L619 AbstractCegarLoop]: Verification canceled: while NwaCegarLoop was constructing difference of abstraction (712states) and FLOYD_HOARE automaton (currently 2 states, 77 states before enhancement),while ReachableStatesComputation was computing reachable states (1 states constructed, input type IntersectNwa).
[2023-12-20 07:33:58,370 INFO L445 BasicCegarLoop]: Path program histogram: [6, 1, 1, 1]
[2023-12-20 07:33:58,372 INFO L179 ceAbstractionStarter]: Computing trace abstraction results
[2023-12-20 07:33:58,373 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.12 07:33:58 BoogieIcfgContainer
[2023-12-20 07:33:58,373 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction----------------------------
[2023-12-20 07:33:58,374 INFO L158 Benchmark]: Toolchain (without parser) took 884835.98ms. Allocated memory was 188.7MB in the beginning and 415.2MB in the end (delta: 226.5MB). Free memory was 142.5MB in the beginning and 292.1MB in the end (delta: -149.6MB). Peak memory consumption was 77.8MB. Max. memory is 8.0GB.
[2023-12-20 07:33:58,374 INFO L158 Benchmark]: CDTParser took 0.10ms. Allocated memory is still 188.7MB. Free memory is still 145.6MB. There was no memory consumed. Max. memory is 8.0GB.
[2023-12-20 07:33:58,374 INFO L158 Benchmark]: CACSL2BoogieTranslator took 163.37ms. Allocated memory is still 188.7MB. Free memory was 142.2MB in the beginning and 131.4MB in the end (delta: 10.8MB). Peak memory consumption was 10.5MB. Max. memory is 8.0GB.
[2023-12-20 07:33:58,374 INFO L158 Benchmark]: Boogie Procedure Inliner took 19.83ms. Allocated memory is still 188.7MB. Free memory was 131.4MB in the beginning and 129.6MB in the end (delta: 1.8MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB.
[2023-12-20 07:33:58,374 INFO L158 Benchmark]: Boogie Preprocessor took 28.57ms. Allocated memory is still 188.7MB. Free memory was 129.6MB in the beginning and 127.5MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB.
[2023-12-20 07:33:58,375 INFO L158 Benchmark]: RCFGBuilder took 212.73ms. Allocated memory is still 188.7MB. Free memory was 127.5MB in the beginning and 114.9MB in the end (delta: 12.6MB). Peak memory consumption was 12.6MB. Max. memory is 8.0GB.
[2023-12-20 07:33:58,375 INFO L158 Benchmark]: TraceAbstraction took 884405.17ms. Allocated memory was 188.7MB in the beginning and 415.2MB in the end (delta: 226.5MB). Free memory was 114.2MB in the beginning and 292.1MB in the end (delta: -177.9MB). Peak memory consumption was 49.5MB. Max. memory is 8.0GB.
[2023-12-20 07:33:58,377 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] #######################
--- Results ---
* Results from de.uni_freiburg.informatik.ultimate.core:
- StatisticsResult: Toolchain Benchmarks
Benchmark results are:
* CDTParser took 0.10ms. Allocated memory is still 188.7MB. Free memory is still 145.6MB. There was no memory consumed. Max. memory is 8.0GB.
* CACSL2BoogieTranslator took 163.37ms. Allocated memory is still 188.7MB. Free memory was 142.2MB in the beginning and 131.4MB in the end (delta: 10.8MB). Peak memory consumption was 10.5MB. Max. memory is 8.0GB.
* Boogie Procedure Inliner took 19.83ms. Allocated memory is still 188.7MB. Free memory was 131.4MB in the beginning and 129.6MB in the end (delta: 1.8MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB.
* Boogie Preprocessor took 28.57ms. Allocated memory is still 188.7MB. Free memory was 129.6MB in the beginning and 127.5MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB.
* RCFGBuilder took 212.73ms. Allocated memory is still 188.7MB. Free memory was 127.5MB in the beginning and 114.9MB in the end (delta: 12.6MB). Peak memory consumption was 12.6MB. Max. memory is 8.0GB.
* TraceAbstraction took 884405.17ms. Allocated memory was 188.7MB in the beginning and 415.2MB in the end (delta: 226.5MB). Free memory was 114.2MB in the beginning and 292.1MB in the end (delta: -177.9MB). Peak memory consumption was 49.5MB. 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 (712states) and FLOYD_HOARE automaton (currently 2 states, 77 states before enhancement),while ReachableStatesComputation was computing reachable states (1 states constructed, input type IntersectNwa).
- StatisticsResult: Ultimate Automizer benchmark data
CFG has 1 procedures, 17 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 884.4s, OverallIterations: 9, TraceHistogramMax: 74, PathProgramHistogramMax: 6, EmptinessCheckTime: 0.0s, AutomataDifference: 2.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 3314 SdHoareTripleChecker+Valid, 1.5s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 3314 mSDsluCounter, 473 SdHoareTripleChecker+Invalid, 1.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 388 mSDsCounter, 735 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 1574 IncrementalHoareTripleChecker+Invalid, 2309 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 735 mSolverCounterUnsat, 85 mSDtfsCounter, 1574 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 1161 GetRequests, 936 SyntacticMatches, 0 SemanticMatches, 225 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 262 ImplicationChecksByTransitivity, 4.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=712occurred in iteration=8, InterpolantAutomatonStates: 160, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 8 MinimizatonAttempts, 198 StatesRemovedByMinimization, 7 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 9.8s SatisfiabilityAnalysisTime, 8.3s InterpolantComputationTime, 1525 NumberOfCodeBlocks, 1500 NumberOfCodeBlocksAsserted, 57 NumberOfCheckSat, 2010 ConstructedInterpolants, 0 QuantifiedInterpolants, 4700 SizeOfPredicates, 0 NumberOfNonLiveVariables, 1404 ConjunctsInSsa, 73 ConjunctsInUnsatCore, 19 InterpolantComputations, 3 PerfectInterpolantSequences, 5423/31071 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