/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/unsignedintegeroverflow-sas23/bilinear_interpolation.i


--------------------------------------------------------------------------------


This is Ultimate 0.2.4-tmp.fs.bitabs-eval-d9c3e40-m
[2023-12-16 01:13:20,102 INFO  L188        SettingsManager]: Resetting all preferences to default values...
[2023-12-16 01:13:20,200 INFO  L114        SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf
[2023-12-16 01:13:20,209 WARN  L101        SettingsManager]: Preference file contains the following unknown settings:
[2023-12-16 01:13:20,209 WARN  L103        SettingsManager]:   * de.uni_freiburg.informatik.ultimate.core.Log level for class
[2023-12-16 01:13:20,227 INFO  L130        SettingsManager]: Preferences different from defaults after loading the file:
[2023-12-16 01:13:20,227 INFO  L151        SettingsManager]: Preferences of UltimateCore differ from their defaults:
[2023-12-16 01:13:20,228 INFO  L153        SettingsManager]:  * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR;
[2023-12-16 01:13:20,228 INFO  L151        SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults:
[2023-12-16 01:13:20,229 INFO  L153        SettingsManager]:  * Use memory slicer=true
[2023-12-16 01:13:20,229 INFO  L151        SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults:
[2023-12-16 01:13:20,229 INFO  L153        SettingsManager]:  * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS
[2023-12-16 01:13:20,230 INFO  L151        SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2023-12-16 01:13:20,230 INFO  L153        SettingsManager]:  * Create parallel compositions if possible=false
[2023-12-16 01:13:20,230 INFO  L153        SettingsManager]:  * Use SBE=true
[2023-12-16 01:13:20,231 INFO  L151        SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2023-12-16 01:13:20,231 INFO  L153        SettingsManager]:  * Pointer base address is valid at dereference=IGNORE
[2023-12-16 01:13:20,231 INFO  L153        SettingsManager]:  * sizeof long=4
[2023-12-16 01:13:20,232 INFO  L153        SettingsManager]:  * Overapproximate operations on floating types=true
[2023-12-16 01:13:20,232 INFO  L153        SettingsManager]:  * sizeof POINTER=4
[2023-12-16 01:13:20,232 INFO  L153        SettingsManager]:  * Check division by zero=IGNORE
[2023-12-16 01:13:20,233 INFO  L153        SettingsManager]:  * Pointer to allocated memory at dereference=IGNORE
[2023-12-16 01:13:20,233 INFO  L153        SettingsManager]:  * If two pointers are subtracted or compared they have the same base address=IGNORE
[2023-12-16 01:13:20,234 INFO  L153        SettingsManager]:  * Check array bounds for arrays that are off heap=IGNORE
[2023-12-16 01:13:20,234 INFO  L153        SettingsManager]:  * Allow undefined functions=false
[2023-12-16 01:13:20,234 INFO  L153        SettingsManager]:  * sizeof long double=12
[2023-12-16 01:13:20,234 INFO  L153        SettingsManager]:  * Check if freed pointer was valid=false
[2023-12-16 01:13:20,235 INFO  L153        SettingsManager]:  * Use constant arrays=true
[2023-12-16 01:13:20,235 INFO  L151        SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2023-12-16 01:13:20,235 INFO  L153        SettingsManager]:  * Size of a code block=SequenceOfStatements
[2023-12-16 01:13:20,235 INFO  L153        SettingsManager]:  * Only consider context switches at boundaries of atomic blocks=true
[2023-12-16 01:13:20,236 INFO  L153        SettingsManager]:  * SMT solver=External_DefaultMode
[2023-12-16 01:13:20,236 INFO  L153        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2023-12-16 01:13:20,236 INFO  L151        SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2023-12-16 01:13:20,236 INFO  L153        SettingsManager]:  * Compute Interpolants along a Counterexample=FPandBP
[2023-12-16 01:13:20,237 INFO  L153        SettingsManager]:  * Positions where we compute the Hoare Annotation=LoopHeads
[2023-12-16 01:13:20,237 INFO  L153        SettingsManager]:  * Trace refinement strategy=CAMEL
[2023-12-16 01:13:20,237 INFO  L153        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2023-12-16 01:13:20,237 INFO  L153        SettingsManager]:  * Apply one-shot large block encoding in concurrent analysis=false
[2023-12-16 01:13:20,238 INFO  L153        SettingsManager]:  * Automaton type used in concurrency analysis=PETRI_NET
[2023-12-16 01:13:20,238 INFO  L153        SettingsManager]:  * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true
[2023-12-16 01:13:20,239 INFO  L153        SettingsManager]:  * Order on configurations for Petri net unfoldings=DBO
[2023-12-16 01:13:20,239 INFO  L153        SettingsManager]:  * SMT solver=External_ModelsAndUnsatCoreMode
[2023-12-16 01:13:20,239 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$1
WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations
WARNING: All illegal access operations will be denied in a future release
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Use bitabs translation -> false
[2023-12-16 01:13:20,479 INFO  L75    nceAwareModelManager]: Repository-Root is: /tmp
[2023-12-16 01:13:20,507 INFO  L261   ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2023-12-16 01:13:20,509 INFO  L217   ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2023-12-16 01:13:20,510 INFO  L270        PluginConnector]: Initializing CDTParser...
[2023-12-16 01:13:20,512 INFO  L274        PluginConnector]: CDTParser initialized
[2023-12-16 01:13:20,516 INFO  L431   ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/unsignedintegeroverflow-sas23/bilinear_interpolation.i
[2023-12-16 01:13:21,641 INFO  L533              CDTParser]: Created temporary CDT project at NULL
[2023-12-16 01:13:21,822 INFO  L384              CDTParser]: Found 1 translation units.
[2023-12-16 01:13:21,823 INFO  L180              CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/unsignedintegeroverflow-sas23/bilinear_interpolation.i
[2023-12-16 01:13:21,831 INFO  L427              CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/99dc714dd/d25f1ae2499f44ee8fb23a182e8146e1/FLAGa2bc82f38
[2023-12-16 01:13:22,185 INFO  L435              CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/99dc714dd/d25f1ae2499f44ee8fb23a182e8146e1
[2023-12-16 01:13:22,187 INFO  L299   ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2023-12-16 01:13:22,188 INFO  L133        ToolchainWalker]: Walking toolchain with 5 elements.
[2023-12-16 01:13:22,189 INFO  L112        PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2023-12-16 01:13:22,189 INFO  L270        PluginConnector]: Initializing CACSL2BoogieTranslator...
[2023-12-16 01:13:22,193 INFO  L274        PluginConnector]: CACSL2BoogieTranslator initialized
[2023-12-16 01:13:22,193 INFO  L184        PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.12 01:13:22" (1/1) ...
[2023-12-16 01:13:22,194 INFO  L204        PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5c676e1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 01:13:22, skipping insertion in model container
[2023-12-16 01:13:22,194 INFO  L184        PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.12 01:13:22" (1/1) ...
[2023-12-16 01:13:22,208 INFO  L177         MainTranslator]: Built tables and reachable declarations
[2023-12-16 01:13:22,310 WARN  L239   ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/unsignedintegeroverflow-sas23/bilinear_interpolation.i[1053,1066]
[2023-12-16 01:13:22,326 INFO  L209          PostProcessor]: Analyzing one entry point: main
[2023-12-16 01:13:22,335 INFO  L202         MainTranslator]: Completed pre-run
[2023-12-16 01:13:22,344 WARN  L239   ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/unsignedintegeroverflow-sas23/bilinear_interpolation.i[1053,1066]
[2023-12-16 01:13:22,352 INFO  L209          PostProcessor]: Analyzing one entry point: main
[2023-12-16 01:13:22,361 INFO  L206         MainTranslator]: Completed translation
[2023-12-16 01:13:22,361 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 01:13:22 WrapperNode
[2023-12-16 01:13:22,361 INFO  L131        PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2023-12-16 01:13:22,362 INFO  L112        PluginConnector]: ------------------------Boogie Procedure Inliner----------------------------
[2023-12-16 01:13:22,362 INFO  L270        PluginConnector]: Initializing Boogie Procedure Inliner...
[2023-12-16 01:13:22,363 INFO  L274        PluginConnector]: Boogie Procedure Inliner initialized
[2023-12-16 01:13:22,367 INFO  L184        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 01:13:22" (1/1) ...
[2023-12-16 01:13:22,373 INFO  L184        PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 01:13:22" (1/1) ...
[2023-12-16 01:13:22,389 INFO  L138                Inliner]: procedures = 15, calls = 7, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 59
[2023-12-16 01:13:22,389 INFO  L131        PluginConnector]: ------------------------ END Boogie Procedure Inliner----------------------------
[2023-12-16 01:13:22,390 INFO  L112        PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2023-12-16 01:13:22,390 INFO  L270        PluginConnector]: Initializing Boogie Preprocessor...
[2023-12-16 01:13:22,390 INFO  L274        PluginConnector]: Boogie Preprocessor initialized
[2023-12-16 01:13:22,398 INFO  L184        PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 01:13:22" (1/1) ...
[2023-12-16 01:13:22,398 INFO  L184        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 01:13:22" (1/1) ...
[2023-12-16 01:13:22,408 INFO  L184        PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 01:13:22" (1/1) ...
[2023-12-16 01:13:22,417 INFO  L175           MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0].
[2023-12-16 01:13:22,417 INFO  L184        PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 01:13:22" (1/1) ...
[2023-12-16 01:13:22,417 INFO  L184        PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 01:13:22" (1/1) ...
[2023-12-16 01:13:22,420 INFO  L184        PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 01:13:22" (1/1) ...
[2023-12-16 01:13:22,421 INFO  L184        PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 01:13:22" (1/1) ...
[2023-12-16 01:13:22,421 INFO  L184        PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 01:13:22" (1/1) ...
[2023-12-16 01:13:22,422 INFO  L184        PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 01:13:22" (1/1) ...
[2023-12-16 01:13:22,423 INFO  L131        PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2023-12-16 01:13:22,449 INFO  L112        PluginConnector]: ------------------------RCFGBuilder----------------------------
[2023-12-16 01:13:22,452 INFO  L270        PluginConnector]: Initializing RCFGBuilder...
[2023-12-16 01:13:22,452 INFO  L274        PluginConnector]: RCFGBuilder initialized
[2023-12-16 01:13:22,452 INFO  L184        PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 01:13:22" (1/1) ...
[2023-12-16 01:13:22,465 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2023-12-16 01:13:22,489 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2023-12-16 01:13:22,500 INFO  L229       MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null)
[2023-12-16 01:13:22,516 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process
[2023-12-16 01:13:22,549 INFO  L130     BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit
[2023-12-16 01:13:22,549 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~int#0
[2023-12-16 01:13:22,550 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2023-12-16 01:13:22,550 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2023-12-16 01:13:22,628 INFO  L241             CfgBuilder]: Building ICFG
[2023-12-16 01:13:22,631 INFO  L267             CfgBuilder]: Building CFG for each procedure with an implementation
[2023-12-16 01:13:22,985 INFO  L282             CfgBuilder]: Performing block encoding
[2023-12-16 01:13:23,008 INFO  L304             CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2023-12-16 01:13:23,008 INFO  L309             CfgBuilder]: Removed 0 assume(true) statements.
[2023-12-16 01:13:23,009 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.12 01:13:23 BoogieIcfgContainer
[2023-12-16 01:13:23,009 INFO  L131        PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2023-12-16 01:13:23,011 INFO  L112        PluginConnector]: ------------------------TraceAbstraction----------------------------
[2023-12-16 01:13:23,011 INFO  L270        PluginConnector]: Initializing TraceAbstraction...
[2023-12-16 01:13:23,013 INFO  L274        PluginConnector]: TraceAbstraction initialized
[2023-12-16 01:13:23,013 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.12 01:13:22" (1/3) ...
[2023-12-16 01:13:23,013 INFO  L204        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2b9200ff and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.12 01:13:23, skipping insertion in model container
[2023-12-16 01:13:23,013 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 01:13:22" (2/3) ...
[2023-12-16 01:13:23,014 INFO  L204        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2b9200ff and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.12 01:13:23, skipping insertion in model container
[2023-12-16 01:13:23,014 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.12 01:13:23" (3/3) ...
[2023-12-16 01:13:23,015 INFO  L112   eAbstractionObserver]: Analyzing ICFG bilinear_interpolation.i
[2023-12-16 01:13:23,030 INFO  L204   ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2023-12-16 01:13:23,030 INFO  L163   ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations.
[2023-12-16 01:13:23,068 INFO  L356      AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ========
[2023-12-16 01:13:23,073 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;@7a0f828d, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms]
[2023-12-16 01:13:23,073 INFO  L358      AbstractCegarLoop]: Starting to check reachability of 1 error locations.
[2023-12-16 01:13:23,076 INFO  L276                IsEmpty]: Start isEmpty. Operand  has 8 states, 6 states have (on average 1.5) internal successors, (9), 7 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-16 01:13:23,080 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 6
[2023-12-16 01:13:23,081 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-16 01:13:23,081 INFO  L195           NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1]
[2023-12-16 01:13:23,082 INFO  L420      AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-16 01:13:23,095 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-16 01:13:23,096 INFO  L85        PathProgramCache]: Analyzing trace with hash 50028124, now seen corresponding path program 1 times
[2023-12-16 01:13:23,102 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-12-16 01:13:23,103 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [836143927]
[2023-12-16 01:13:23,103 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-16 01:13:23,103 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-12-16 01:13:23,210 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-16 01:13:23,236 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-12-16 01:13:23,236 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [836143927]
[2023-12-16 01:13:23,237 WARN  L311   FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unsupported non-linear arithmetic
[2023-12-16 01:13:23,237 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1740839447]
[2023-12-16 01:13:23,237 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-16 01:13:23,237 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2023-12-16 01:13:23,237 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2023-12-16 01:13:23,240 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)
[2023-12-16 01:13:23,278 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process
[2023-12-16 01:13:23,321 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-16 01:13:23,323 INFO  L262         TraceCheckSpWp]: Trace formula consists of 47 conjuncts, 1 conjunts are in the unsatisfiable core
[2023-12-16 01:13:23,325 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-12-16 01:13:23,339 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2023-12-16 01:13:23,339 INFO  L323         TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2023-12-16 01:13:23,340 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleZ3 [1740839447] provided 1 perfect and 0 imperfect interpolant sequences
[2023-12-16 01:13:23,340 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-12-16 01:13:23,340 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2023-12-16 01:13:23,342 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1249482660]
[2023-12-16 01:13:23,342 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-16 01:13:23,345 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 2 states
[2023-12-16 01:13:23,345 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-12-16 01:13:23,365 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants.
[2023-12-16 01:13:23,365 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2
[2023-12-16 01:13:23,367 INFO  L87              Difference]: Start difference. First operand  has 8 states, 6 states have (on average 1.5) internal successors, (9), 7 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand  has 2 states, 2 states have (on average 2.5) internal successors, (5), 2 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-16 01:13:23,378 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-16 01:13:23,379 INFO  L93              Difference]: Finished difference Result 14 states and 15 transitions.
[2023-12-16 01:13:23,381 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2023-12-16 01:13:23,382 INFO  L78                 Accepts]: Start accepts. Automaton has  has 2 states, 2 states have (on average 2.5) internal successors, (5), 2 states have internal predecessors, (5), 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 5
[2023-12-16 01:13:23,382 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-16 01:13:23,387 INFO  L225             Difference]: With dead ends: 14
[2023-12-16 01:13:23,387 INFO  L226             Difference]: Without dead ends: 6
[2023-12-16 01:13:23,389 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2
[2023-12-16 01:13:23,393 INFO  L413           NwaCegarLoop]: 5 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, 5 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2023-12-16 01:13:23,395 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 5 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2023-12-16 01:13:23,411 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 6 states.
[2023-12-16 01:13:23,416 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 6 to 6.
[2023-12-16 01:13:23,417 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 6 states, 5 states have (on average 1.0) internal successors, (5), 5 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-16 01:13:23,418 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 5 transitions.
[2023-12-16 01:13:23,419 INFO  L78                 Accepts]: Start accepts. Automaton has 6 states and 5 transitions. Word has length 5
[2023-12-16 01:13:23,419 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-16 01:13:23,419 INFO  L495      AbstractCegarLoop]: Abstraction has 6 states and 5 transitions.
[2023-12-16 01:13:23,419 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 2 states, 2 states have (on average 2.5) internal successors, (5), 2 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-16 01:13:23,419 INFO  L276                IsEmpty]: Start isEmpty. Operand 6 states and 5 transitions.
[2023-12-16 01:13:23,419 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 6
[2023-12-16 01:13:23,420 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-16 01:13:23,420 INFO  L195           NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1]
[2023-12-16 01:13:23,427 INFO  L552       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0
[2023-12-16 01:13:23,624 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0
[2023-12-16 01:13:23,625 INFO  L420      AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-16 01:13:23,626 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-16 01:13:23,626 INFO  L85        PathProgramCache]: Analyzing trace with hash 50087706, now seen corresponding path program 1 times
[2023-12-16 01:13:23,626 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-12-16 01:13:23,626 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1843459974]
[2023-12-16 01:13:23,626 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-16 01:13:23,627 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-12-16 01:13:23,651 ERROR L246   FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic
[2023-12-16 01:13:23,651 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1779832833]
[2023-12-16 01:13:23,651 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-16 01:13:23,651 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2023-12-16 01:13:23,651 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2023-12-16 01:13:23,652 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)
[2023-12-16 01:13:23,657 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process
Received shutdown request...
[2023-12-16 01:14:45,429 WARN  L340       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Timeout while monitored process is still running, waiting 1000 ms for graceful end
[2023-12-16 01:14:45,429 WARN  L340       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Timeout while monitored process is still running, waiting 1000 ms for graceful end
[2023-12-16 01:14:46,436 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
[2023-12-16 01:14:46,633 WARN  L435       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forcibly destroying the process
[2023-12-16 01:14:46,637 ERROR L246   FreeRefinementEngine]: Caught known exception: Timeout or Toolchain cancelled by user
[2023-12-16 01:14:46,639 INFO  L805   garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining)
[2023-12-16 01:14:46,660 INFO  L540       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 137
[2023-12-16 01:14:46,660 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable1
[2023-12-16 01:14:46,661 WARN  L619      AbstractCegarLoop]: Verification canceled: while NwaCegarLoop was analyzing trace of length 6 with TraceHistMax 1,while AutomatonFreeRefinementEngine was Timeout during CAMEL.
[2023-12-16 01:14:46,664 INFO  L445         BasicCegarLoop]: Path program histogram: [1, 1]
[2023-12-16 01:14:46,666 INFO  L179   ceAbstractionStarter]: Computing trace abstraction results
[2023-12-16 01:14:46,669 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 16.12 01:14:46 BoogieIcfgContainer
[2023-12-16 01:14:46,669 INFO  L131        PluginConnector]: ------------------------ END TraceAbstraction----------------------------
[2023-12-16 01:14:46,673 INFO  L158              Benchmark]: Toolchain (without parser) took 84481.60ms. Allocated memory is still 325.1MB. Free memory was 288.8MB in the beginning and 286.2MB in the end (delta: 2.7MB). Peak memory consumption was 5.1MB. Max. memory is 8.0GB.
[2023-12-16 01:14:46,674 INFO  L158              Benchmark]: CDTParser took 0.16ms. Allocated memory is still 199.2MB. Free memory is still 153.2MB. There was no memory consumed. Max. memory is 8.0GB.
[2023-12-16 01:14:46,674 INFO  L158              Benchmark]: CACSL2BoogieTranslator took 172.93ms. Allocated memory is still 325.1MB. Free memory was 288.8MB in the beginning and 277.3MB in the end (delta: 11.5MB). Peak memory consumption was 11.5MB. Max. memory is 8.0GB.
[2023-12-16 01:14:46,674 INFO  L158              Benchmark]: Boogie Procedure Inliner took 26.74ms. Allocated memory is still 325.1MB. Free memory was 277.3MB in the beginning and 275.2MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB.
[2023-12-16 01:14:46,674 INFO  L158              Benchmark]: Boogie Preprocessor took 33.82ms. Allocated memory is still 325.1MB. Free memory was 275.2MB in the beginning and 272.9MB in the end (delta: 2.3MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB.
[2023-12-16 01:14:46,675 INFO  L158              Benchmark]: RCFGBuilder took 560.38ms. Allocated memory is still 325.1MB. Free memory was 272.5MB in the beginning and 257.8MB in the end (delta: 14.7MB). Peak memory consumption was 14.7MB. Max. memory is 8.0GB.
[2023-12-16 01:14:46,675 INFO  L158              Benchmark]: TraceAbstraction took 83658.52ms. Allocated memory is still 325.1MB. Free memory was 257.2MB in the beginning and 286.2MB in the end (delta: -29.0MB). There was no memory consumed. Max. memory is 8.0GB.
[2023-12-16 01:14:46,676 INFO  L338   ainManager$Toolchain]: #######################  End [Toolchain 1] #######################
 --- Results ---
 * Results from de.uni_freiburg.informatik.ultimate.core:
  - StatisticsResult: Toolchain Benchmarks
    Benchmark results are:
 * CDTParser took 0.16ms. Allocated memory is still 199.2MB. Free memory is still 153.2MB. There was no memory consumed. Max. memory is 8.0GB.
 * CACSL2BoogieTranslator took 172.93ms. Allocated memory is still 325.1MB. Free memory was 288.8MB in the beginning and 277.3MB in the end (delta: 11.5MB). Peak memory consumption was 11.5MB. Max. memory is 8.0GB.
 * Boogie Procedure Inliner took 26.74ms. Allocated memory is still 325.1MB. Free memory was 277.3MB in the beginning and 275.2MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB.
 * Boogie Preprocessor took 33.82ms. Allocated memory is still 325.1MB. Free memory was 275.2MB in the beginning and 272.9MB in the end (delta: 2.3MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB.
 * RCFGBuilder took 560.38ms. Allocated memory is still 325.1MB. Free memory was 272.5MB in the beginning and 257.8MB in the end (delta: 14.7MB). Peak memory consumption was 14.7MB. Max. memory is 8.0GB.
 * TraceAbstraction took 83658.52ms. Allocated memory is still 325.1MB. Free memory was 257.2MB in the beginning and 286.2MB in the end (delta: -29.0MB). There was no memory consumed. Max. memory is 8.0GB.
 * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction:
  - StatisticsResult: ErrorAutomatonStatistics
    NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0
  - TimeoutResultAtElement [Line: 19]: Timeout (TraceAbstraction)
    Unable to prove that a call to reach_error is unreachable (line 19). Cancelled while NwaCegarLoop was analyzing trace of length 6 with TraceHistMax 1,while AutomatonFreeRefinementEngine was Timeout during CAMEL.
  - StatisticsResult: Ultimate Automizer benchmark data
    CFG has 1 procedures, 8 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 83.6s, OverallIterations: 2, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 0 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 0 mSDsluCounter, 5 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 0 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 2 IncrementalHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 0 mSolverCounterUnsat, 5 mSDtfsCounter, 2 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 4 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=8occurred in iteration=0, InterpolantAutomatonStates: 2, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 10 NumberOfCodeBlocks, 10 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 4 ConstructedInterpolants, 0 QuantifiedInterpolants, 4 SizeOfPredicates, 0 NumberOfNonLiveVariables, 47 ConjunctsInSsa, 1 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 0/0 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