/usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Bitvector.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/hardness-nfm22/hardness_codestructure_dependencies_file-84.i


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


This is Ultimate 0.2.4-tmp.fs.bitabs-eval-d9c3e40-m
[2023-12-22 20:23:58,132 INFO  L188        SettingsManager]: Resetting all preferences to default values...
[2023-12-22 20:23:58,195 INFO  L114        SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Bitvector.epf
[2023-12-22 20:23:58,198 WARN  L101        SettingsManager]: Preference file contains the following unknown settings:
[2023-12-22 20:23:58,198 WARN  L103        SettingsManager]:   * de.uni_freiburg.informatik.ultimate.core.Log level for class
[2023-12-22 20:23:58,210 INFO  L130        SettingsManager]: Preferences different from defaults after loading the file:
[2023-12-22 20:23:58,210 INFO  L151        SettingsManager]: Preferences of UltimateCore differ from their defaults:
[2023-12-22 20:23:58,211 INFO  L153        SettingsManager]:  * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR;
[2023-12-22 20:23:58,211 INFO  L151        SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults:
[2023-12-22 20:23:58,211 INFO  L153        SettingsManager]:  * Use memory slicer=true
[2023-12-22 20:23:58,212 INFO  L151        SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults:
[2023-12-22 20:23:58,212 INFO  L153        SettingsManager]:  * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS
[2023-12-22 20:23:58,212 INFO  L151        SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2023-12-22 20:23:58,212 INFO  L153        SettingsManager]:  * Create parallel compositions if possible=false
[2023-12-22 20:23:58,213 INFO  L153        SettingsManager]:  * Use SBE=true
[2023-12-22 20:23:58,213 INFO  L151        SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2023-12-22 20:23:58,213 INFO  L153        SettingsManager]:  * Pointer base address is valid at dereference=IGNORE
[2023-12-22 20:23:58,213 INFO  L153        SettingsManager]:  * sizeof long=4
[2023-12-22 20:23:58,214 INFO  L153        SettingsManager]:  * sizeof POINTER=4
[2023-12-22 20:23:58,214 INFO  L153        SettingsManager]:  * Check division by zero=IGNORE
[2023-12-22 20:23:58,214 INFO  L153        SettingsManager]:  * Pointer to allocated memory at dereference=IGNORE
[2023-12-22 20:23:58,218 INFO  L153        SettingsManager]:  * If two pointers are subtracted or compared they have the same base address=IGNORE
[2023-12-22 20:23:58,218 INFO  L153        SettingsManager]:  * Check array bounds for arrays that are off heap=IGNORE
[2023-12-22 20:23:58,218 INFO  L153        SettingsManager]:  * Adapt memory model on pointer casts if necessary=true
[2023-12-22 20:23:58,218 INFO  L153        SettingsManager]:  * Use bitvectors instead of ints=true
[2023-12-22 20:23:58,218 INFO  L153        SettingsManager]:  * Allow undefined functions=false
[2023-12-22 20:23:58,219 INFO  L153        SettingsManager]:  * Memory model=HoenickeLindenmann_4ByteResolution
[2023-12-22 20:23:58,219 INFO  L153        SettingsManager]:  * sizeof long double=12
[2023-12-22 20:23:58,219 INFO  L153        SettingsManager]:  * Check if freed pointer was valid=false
[2023-12-22 20:23:58,219 INFO  L153        SettingsManager]:  * Use constant arrays=true
[2023-12-22 20:23:58,219 INFO  L151        SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2023-12-22 20:23:58,220 INFO  L153        SettingsManager]:  * Size of a code block=SequenceOfStatements
[2023-12-22 20:23:58,220 INFO  L153        SettingsManager]:  * Only consider context switches at boundaries of atomic blocks=true
[2023-12-22 20:23:58,220 INFO  L153        SettingsManager]:  * SMT solver=External_DefaultMode
[2023-12-22 20:23:58,220 INFO  L153        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2023-12-22 20:23:58,220 INFO  L151        SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2023-12-22 20:23:58,220 INFO  L153        SettingsManager]:  * Compute Interpolants along a Counterexample=FPandBP
[2023-12-22 20:23:58,221 INFO  L153        SettingsManager]:  * Positions where we compute the Hoare Annotation=LoopHeads
[2023-12-22 20:23:58,221 INFO  L153        SettingsManager]:  * Trace refinement strategy=WOLF
[2023-12-22 20:23:58,221 INFO  L153        SettingsManager]:  * Command for external solver=cvc4 --incremental --print-success --lang smt
[2023-12-22 20:23:58,221 INFO  L153        SettingsManager]:  * Apply one-shot large block encoding in concurrent analysis=false
[2023-12-22 20:23:58,222 INFO  L153        SettingsManager]:  * Automaton type used in concurrency analysis=PETRI_NET
[2023-12-22 20:23:58,222 INFO  L153        SettingsManager]:  * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true
[2023-12-22 20:23:58,222 INFO  L153        SettingsManager]:  * Order on configurations for Petri net unfoldings=DBO
[2023-12-22 20:23:58,223 INFO  L153        SettingsManager]:  * SMT solver=External_ModelsAndUnsatCoreMode
[2023-12-22 20:23:58,223 INFO  L153        SettingsManager]:  * Logic for external solver=AUFBV
[2023-12-22 20:23:58,223 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$1
WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations
WARNING: All illegal access operations will be denied in a future release
[2023-12-22 20:23:58,382 INFO  L75    nceAwareModelManager]: Repository-Root is: /tmp
[2023-12-22 20:23:58,395 INFO  L261   ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2023-12-22 20:23:58,397 INFO  L217   ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2023-12-22 20:23:58,397 INFO  L270        PluginConnector]: Initializing CDTParser...
[2023-12-22 20:23:58,398 INFO  L274        PluginConnector]: CDTParser initialized
[2023-12-22 20:23:58,399 INFO  L431   ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/hardness-nfm22/hardness_codestructure_dependencies_file-84.i
[2023-12-22 20:23:59,370 INFO  L533              CDTParser]: Created temporary CDT project at NULL
[2023-12-22 20:23:59,538 INFO  L384              CDTParser]: Found 1 translation units.
[2023-12-22 20:23:59,538 INFO  L180              CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/hardness-nfm22/hardness_codestructure_dependencies_file-84.i
[2023-12-22 20:23:59,544 INFO  L427              CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1e0d58e87/ce2ec58e18ed494b961c34ad83fc797d/FLAG25c4df88f
[2023-12-22 20:23:59,561 INFO  L435              CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1e0d58e87/ce2ec58e18ed494b961c34ad83fc797d
[2023-12-22 20:23:59,563 INFO  L299   ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2023-12-22 20:23:59,563 INFO  L133        ToolchainWalker]: Walking toolchain with 5 elements.
[2023-12-22 20:23:59,564 INFO  L112        PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2023-12-22 20:23:59,564 INFO  L270        PluginConnector]: Initializing CACSL2BoogieTranslator...
[2023-12-22 20:23:59,569 INFO  L274        PluginConnector]: CACSL2BoogieTranslator initialized
[2023-12-22 20:23:59,570 INFO  L184        PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.12 08:23:59" (1/1) ...
[2023-12-22 20:23:59,570 INFO  L204        PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@537eacba and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 08:23:59, skipping insertion in model container
[2023-12-22 20:23:59,571 INFO  L184        PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.12 08:23:59" (1/1) ...
[2023-12-22 20:23:59,598 INFO  L177         MainTranslator]: Built tables and reachable declarations
[2023-12-22 20:23:59,709 WARN  L239   ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/hardness-nfm22/hardness_codestructure_dependencies_file-84.i[919,932]
[2023-12-22 20:23:59,750 INFO  L209          PostProcessor]: Analyzing one entry point: main
[2023-12-22 20:23:59,759 INFO  L202         MainTranslator]: Completed pre-run
[2023-12-22 20:23:59,767 WARN  L239   ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/hardness-nfm22/hardness_codestructure_dependencies_file-84.i[919,932]
[2023-12-22 20:23:59,818 INFO  L209          PostProcessor]: Analyzing one entry point: main
[2023-12-22 20:23:59,830 INFO  L206         MainTranslator]: Completed translation
[2023-12-22 20:23:59,830 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 08:23:59 WrapperNode
[2023-12-22 20:23:59,831 INFO  L131        PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2023-12-22 20:23:59,831 INFO  L112        PluginConnector]: ------------------------Boogie Procedure Inliner----------------------------
[2023-12-22 20:23:59,831 INFO  L270        PluginConnector]: Initializing Boogie Procedure Inliner...
[2023-12-22 20:23:59,832 INFO  L274        PluginConnector]: Boogie Procedure Inliner initialized
[2023-12-22 20:23:59,847 INFO  L184        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 08:23:59" (1/1) ...
[2023-12-22 20:23:59,855 INFO  L184        PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 08:23:59" (1/1) ...
[2023-12-22 20:23:59,873 INFO  L138                Inliner]: procedures = 27, calls = 35, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 127
[2023-12-22 20:23:59,873 INFO  L131        PluginConnector]: ------------------------ END Boogie Procedure Inliner----------------------------
[2023-12-22 20:23:59,874 INFO  L112        PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2023-12-22 20:23:59,874 INFO  L270        PluginConnector]: Initializing Boogie Preprocessor...
[2023-12-22 20:23:59,874 INFO  L274        PluginConnector]: Boogie Preprocessor initialized
[2023-12-22 20:23:59,881 INFO  L184        PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 08:23:59" (1/1) ...
[2023-12-22 20:23:59,881 INFO  L184        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 08:23:59" (1/1) ...
[2023-12-22 20:23:59,885 INFO  L184        PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 08:23:59" (1/1) ...
[2023-12-22 20:23:59,895 INFO  L175           MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0].
[2023-12-22 20:23:59,896 INFO  L184        PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 08:23:59" (1/1) ...
[2023-12-22 20:23:59,896 INFO  L184        PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 08:23:59" (1/1) ...
[2023-12-22 20:23:59,909 INFO  L184        PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 08:23:59" (1/1) ...
[2023-12-22 20:23:59,911 INFO  L184        PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 08:23:59" (1/1) ...
[2023-12-22 20:23:59,913 INFO  L184        PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 08:23:59" (1/1) ...
[2023-12-22 20:23:59,914 INFO  L184        PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 08:23:59" (1/1) ...
[2023-12-22 20:23:59,916 INFO  L131        PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2023-12-22 20:23:59,916 INFO  L112        PluginConnector]: ------------------------RCFGBuilder----------------------------
[2023-12-22 20:23:59,917 INFO  L270        PluginConnector]: Initializing RCFGBuilder...
[2023-12-22 20:23:59,917 INFO  L274        PluginConnector]: RCFGBuilder initialized
[2023-12-22 20:23:59,917 INFO  L184        PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 08:23:59" (1/1) ...
[2023-12-22 20:23:59,948 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2023-12-22 20:23:59,956 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2023-12-22 20:23:59,966 INFO  L229       MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null)
[2023-12-22 20:23:59,987 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process
[2023-12-22 20:24:00,000 INFO  L130     BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit
[2023-12-22 20:24:00,001 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0
[2023-12-22 20:24:00,001 INFO  L130     BoogieDeclarations]: Found specification of procedure assume_abort_if_not
[2023-12-22 20:24:00,002 INFO  L138     BoogieDeclarations]: Found implementation of procedure assume_abort_if_not
[2023-12-22 20:24:00,002 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2023-12-22 20:24:00,003 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2023-12-22 20:24:00,082 INFO  L241             CfgBuilder]: Building ICFG
[2023-12-22 20:24:00,086 INFO  L267             CfgBuilder]: Building CFG for each procedure with an implementation
[2023-12-22 20:24:00,459 INFO  L282             CfgBuilder]: Performing block encoding
[2023-12-22 20:24:00,520 INFO  L304             CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2023-12-22 20:24:00,520 INFO  L309             CfgBuilder]: Removed 1 assume(true) statements.
[2023-12-22 20:24:00,520 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.12 08:24:00 BoogieIcfgContainer
[2023-12-22 20:24:00,520 INFO  L131        PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2023-12-22 20:24:00,523 INFO  L112        PluginConnector]: ------------------------TraceAbstraction----------------------------
[2023-12-22 20:24:00,523 INFO  L270        PluginConnector]: Initializing TraceAbstraction...
[2023-12-22 20:24:00,525 INFO  L274        PluginConnector]: TraceAbstraction initialized
[2023-12-22 20:24:00,526 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.12 08:23:59" (1/3) ...
[2023-12-22 20:24:00,526 INFO  L204        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2e10aeb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.12 08:24:00, skipping insertion in model container
[2023-12-22 20:24:00,527 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 08:23:59" (2/3) ...
[2023-12-22 20:24:00,527 INFO  L204        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2e10aeb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.12 08:24:00, skipping insertion in model container
[2023-12-22 20:24:00,527 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.12 08:24:00" (3/3) ...
[2023-12-22 20:24:00,528 INFO  L112   eAbstractionObserver]: Analyzing ICFG hardness_codestructure_dependencies_file-84.i
[2023-12-22 20:24:00,539 INFO  L204   ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2023-12-22 20:24:00,540 INFO  L163   ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations.
[2023-12-22 20:24:00,579 INFO  L356      AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ========
[2023-12-22 20:24:00,584 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;@5226fa08, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms]
[2023-12-22 20:24:00,585 INFO  L358      AbstractCegarLoop]: Starting to check reachability of 1 error locations.
[2023-12-22 20:24:00,588 INFO  L276                IsEmpty]: Start isEmpty. Operand  has 54 states, 29 states have (on average 1.4482758620689655) internal successors, (42), 30 states have internal predecessors, (42), 22 states have call successors, (22), 1 states have call predecessors, (22), 1 states have return successors, (22), 22 states have call predecessors, (22), 22 states have call successors, (22)
[2023-12-22 20:24:00,602 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 133
[2023-12-22 20:24:00,602 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-22 20:24:00,603 INFO  L195           NwaCegarLoop]: trace histogram [22, 22, 22, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2023-12-22 20:24:00,603 INFO  L420      AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-22 20:24:00,609 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-22 20:24:00,609 INFO  L85        PathProgramCache]: Analyzing trace with hash -132041379, now seen corresponding path program 1 times
[2023-12-22 20:24:00,619 INFO  L118   FreeRefinementEngine]: Executing refinement strategy WOLF
[2023-12-22 20:24:00,620 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1870650310]
[2023-12-22 20:24:00,620 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-22 20:24:00,620 INFO  L173          SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3
[2023-12-22 20:24:00,620 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat
[2023-12-22 20:24:00,622 INFO  L229       MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null)
[2023-12-22 20:24:00,650 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Waiting until timeout for monitored process
[2023-12-22 20:24:00,837 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-22 20:24:00,846 INFO  L262         TraceCheckSpWp]: Trace formula consists of 218 conjuncts, 1 conjunts are in the unsatisfiable core
[2023-12-22 20:24:00,854 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-12-22 20:24:00,906 INFO  L134       CoverageAnalysis]: Checked inductivity of 924 backedges. 122 proven. 0 refuted. 0 times theorem prover too weak. 802 trivial. 0 not checked.
[2023-12-22 20:24:00,906 INFO  L323         TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2023-12-22 20:24:00,907 INFO  L136   FreeRefinementEngine]: Strategy WOLF found an infeasible trace
[2023-12-22 20:24:00,907 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1870650310]
[2023-12-22 20:24:00,907 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleMathsat [1870650310] provided 1 perfect and 0 imperfect interpolant sequences
[2023-12-22 20:24:00,907 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-12-22 20:24:00,908 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2023-12-22 20:24:00,909 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1128362565]
[2023-12-22 20:24:00,909 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-22 20:24:00,913 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 2 states
[2023-12-22 20:24:00,913 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF
[2023-12-22 20:24:00,947 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants.
[2023-12-22 20:24:00,948 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2
[2023-12-22 20:24:00,950 INFO  L87              Difference]: Start difference. First operand  has 54 states, 29 states have (on average 1.4482758620689655) internal successors, (42), 30 states have internal predecessors, (42), 22 states have call successors, (22), 1 states have call predecessors, (22), 1 states have return successors, (22), 22 states have call predecessors, (22), 22 states have call successors, (22) Second operand  has 2 states, 2 states have (on average 14.5) internal successors, (29), 2 states have internal predecessors, (29), 2 states have call successors, (22), 2 states have call predecessors, (22), 2 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22)
[2023-12-22 20:24:01,064 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-22 20:24:01,065 INFO  L93              Difference]: Finished difference Result 105 states and 192 transitions.
[2023-12-22 20:24:01,077 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2023-12-22 20:24:01,078 INFO  L78                 Accepts]: Start accepts. Automaton has  has 2 states, 2 states have (on average 14.5) internal successors, (29), 2 states have internal predecessors, (29), 2 states have call successors, (22), 2 states have call predecessors, (22), 2 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) Word has length 132
[2023-12-22 20:24:01,078 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-22 20:24:01,083 INFO  L225             Difference]: With dead ends: 105
[2023-12-22 20:24:01,083 INFO  L226             Difference]: Without dead ends: 52
[2023-12-22 20:24:01,086 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 131 GetRequests, 131 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2
[2023-12-22 20:24:01,091 INFO  L413           NwaCegarLoop]: 78 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 78 SdHoareTripleChecker+Invalid, 3 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2023-12-22 20:24:01,092 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 78 Invalid, 3 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2023-12-22 20:24:01,103 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 52 states.
[2023-12-22 20:24:01,127 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 52 to 52.
[2023-12-22 20:24:01,128 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 52 states, 28 states have (on average 1.3214285714285714) internal successors, (37), 28 states have internal predecessors, (37), 22 states have call successors, (22), 1 states have call predecessors, (22), 1 states have return successors, (22), 22 states have call predecessors, (22), 22 states have call successors, (22)
[2023-12-22 20:24:01,129 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 52 states to 52 states and 81 transitions.
[2023-12-22 20:24:01,130 INFO  L78                 Accepts]: Start accepts. Automaton has 52 states and 81 transitions. Word has length 132
[2023-12-22 20:24:01,130 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-22 20:24:01,130 INFO  L495      AbstractCegarLoop]: Abstraction has 52 states and 81 transitions.
[2023-12-22 20:24:01,131 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 2 states, 2 states have (on average 14.5) internal successors, (29), 2 states have internal predecessors, (29), 2 states have call successors, (22), 2 states have call predecessors, (22), 2 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22)
[2023-12-22 20:24:01,131 INFO  L276                IsEmpty]: Start isEmpty. Operand 52 states and 81 transitions.
[2023-12-22 20:24:01,133 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 133
[2023-12-22 20:24:01,133 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-22 20:24:01,133 INFO  L195           NwaCegarLoop]: trace histogram [22, 22, 22, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2023-12-22 20:24:01,146 INFO  L540       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0
[2023-12-22 20:24:01,334 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3
[2023-12-22 20:24:01,335 INFO  L420      AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-22 20:24:01,335 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-22 20:24:01,336 INFO  L85        PathProgramCache]: Analyzing trace with hash -1522502755, now seen corresponding path program 1 times
[2023-12-22 20:24:01,336 INFO  L118   FreeRefinementEngine]: Executing refinement strategy WOLF
[2023-12-22 20:24:01,336 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [256520248]
[2023-12-22 20:24:01,336 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-22 20:24:01,337 INFO  L173          SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3
[2023-12-22 20:24:01,337 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat
[2023-12-22 20:24:01,347 INFO  L229       MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null)
[2023-12-22 20:24:01,349 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Waiting until timeout for monitored process
[2023-12-22 20:24:01,480 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-22 20:24:01,488 INFO  L262         TraceCheckSpWp]: Trace formula consists of 218 conjuncts, 2 conjunts are in the unsatisfiable core
[2023-12-22 20:24:01,495 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-12-22 20:24:01,516 INFO  L134       CoverageAnalysis]: Checked inductivity of 924 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 924 trivial. 0 not checked.
[2023-12-22 20:24:01,516 INFO  L323         TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2023-12-22 20:24:01,517 INFO  L136   FreeRefinementEngine]: Strategy WOLF found an infeasible trace
[2023-12-22 20:24:01,517 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [256520248]
[2023-12-22 20:24:01,517 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleMathsat [256520248] provided 1 perfect and 0 imperfect interpolant sequences
[2023-12-22 20:24:01,517 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-12-22 20:24:01,517 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2023-12-22 20:24:01,517 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [708792940]
[2023-12-22 20:24:01,517 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-22 20:24:01,518 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2023-12-22 20:24:01,519 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF
[2023-12-22 20:24:01,519 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2023-12-22 20:24:01,519 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2023-12-22 20:24:01,520 INFO  L87              Difference]: Start difference. First operand 52 states and 81 transitions. Second operand  has 3 states, 3 states have (on average 8.333333333333334) internal successors, (25), 3 states have internal predecessors, (25), 1 states have call successors, (22), 1 states have call predecessors, (22), 1 states have return successors, (22), 1 states have call predecessors, (22), 1 states have call successors, (22)
[2023-12-22 20:24:01,584 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-22 20:24:01,584 INFO  L93              Difference]: Finished difference Result 103 states and 161 transitions.
[2023-12-22 20:24:01,597 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2023-12-22 20:24:01,597 INFO  L78                 Accepts]: Start accepts. Automaton has  has 3 states, 3 states have (on average 8.333333333333334) internal successors, (25), 3 states have internal predecessors, (25), 1 states have call successors, (22), 1 states have call predecessors, (22), 1 states have return successors, (22), 1 states have call predecessors, (22), 1 states have call successors, (22) Word has length 132
[2023-12-22 20:24:01,598 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-22 20:24:01,599 INFO  L225             Difference]: With dead ends: 103
[2023-12-22 20:24:01,599 INFO  L226             Difference]: Without dead ends: 52
[2023-12-22 20:24:01,600 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 131 GetRequests, 130 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2023-12-22 20:24:01,600 INFO  L413           NwaCegarLoop]: 76 mSDtfsCounter, 78 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 78 SdHoareTripleChecker+Valid, 76 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2023-12-22 20:24:01,601 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [78 Valid, 76 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2023-12-22 20:24:01,601 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 52 states.
[2023-12-22 20:24:01,611 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 52 to 52.
[2023-12-22 20:24:01,611 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 52 states, 28 states have (on average 1.2857142857142858) internal successors, (36), 28 states have internal predecessors, (36), 22 states have call successors, (22), 1 states have call predecessors, (22), 1 states have return successors, (22), 22 states have call predecessors, (22), 22 states have call successors, (22)
[2023-12-22 20:24:01,629 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 52 states to 52 states and 80 transitions.
[2023-12-22 20:24:01,630 INFO  L78                 Accepts]: Start accepts. Automaton has 52 states and 80 transitions. Word has length 132
[2023-12-22 20:24:01,634 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-22 20:24:01,634 INFO  L495      AbstractCegarLoop]: Abstraction has 52 states and 80 transitions.
[2023-12-22 20:24:01,634 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 8.333333333333334) internal successors, (25), 3 states have internal predecessors, (25), 1 states have call successors, (22), 1 states have call predecessors, (22), 1 states have return successors, (22), 1 states have call predecessors, (22), 1 states have call successors, (22)
[2023-12-22 20:24:01,634 INFO  L276                IsEmpty]: Start isEmpty. Operand 52 states and 80 transitions.
[2023-12-22 20:24:01,639 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 133
[2023-12-22 20:24:01,640 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-22 20:24:01,640 INFO  L195           NwaCegarLoop]: trace histogram [22, 22, 22, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2023-12-22 20:24:01,647 INFO  L552       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Ended with exit code 0
[2023-12-22 20:24:01,840 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3
[2023-12-22 20:24:01,843 INFO  L420      AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-22 20:24:01,845 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-22 20:24:01,845 INFO  L85        PathProgramCache]: Analyzing trace with hash -1465244453, now seen corresponding path program 1 times
[2023-12-22 20:24:01,845 INFO  L118   FreeRefinementEngine]: Executing refinement strategy WOLF
[2023-12-22 20:24:01,846 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [828166736]
[2023-12-22 20:24:01,846 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-22 20:24:01,846 INFO  L173          SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3
[2023-12-22 20:24:01,846 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat
[2023-12-22 20:24:01,853 INFO  L229       MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null)
[2023-12-22 20:24:01,854 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Waiting until timeout for monitored process
[2023-12-22 20:24:01,987 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-22 20:24:01,996 INFO  L262         TraceCheckSpWp]: Trace formula consists of 217 conjuncts, 7 conjunts are in the unsatisfiable core
[2023-12-22 20:24:02,000 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-12-22 20:24:02,449 INFO  L134       CoverageAnalysis]: Checked inductivity of 924 backedges. 211 proven. 6 refuted. 0 times theorem prover too weak. 707 trivial. 0 not checked.
[2023-12-22 20:24:02,450 INFO  L327         TraceCheckSpWp]: Computing backward predicates...
[2023-12-22 20:24:02,565 INFO  L136   FreeRefinementEngine]: Strategy WOLF found an infeasible trace
[2023-12-22 20:24:02,565 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [828166736]
[2023-12-22 20:24:02,566 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleMathsat [828166736] provided 0 perfect and 1 imperfect interpolant sequences
[2023-12-22 20:24:02,566 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [2120686038]
[2023-12-22 20:24:02,566 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-22 20:24:02,566 INFO  L173          SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt
[2023-12-22 20:24:02,566 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4
[2023-12-22 20:24:02,610 INFO  L229       MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null)
[2023-12-22 20:24:02,629 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (5)] Waiting until timeout for monitored process
[2023-12-22 20:24:02,972 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-22 20:24:02,977 INFO  L262         TraceCheckSpWp]: Trace formula consists of 217 conjuncts, 8 conjunts are in the unsatisfiable core
[2023-12-22 20:24:02,980 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-12-22 20:24:03,217 INFO  L134       CoverageAnalysis]: Checked inductivity of 924 backedges. 211 proven. 6 refuted. 0 times theorem prover too weak. 707 trivial. 0 not checked.
[2023-12-22 20:24:03,217 INFO  L327         TraceCheckSpWp]: Computing backward predicates...
[2023-12-22 20:24:03,258 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleCvc4 [2120686038] provided 0 perfect and 1 imperfect interpolant sequences
[2023-12-22 20:24:03,258 INFO  L185   FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences.
[2023-12-22 20:24:03,258 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 7
[2023-12-22 20:24:03,259 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [881646064]
[2023-12-22 20:24:03,259 INFO  L85    oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton
[2023-12-22 20:24:03,259 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 8 states
[2023-12-22 20:24:03,259 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF
[2023-12-22 20:24:03,260 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2023-12-22 20:24:03,260 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=84, Unknown=0, NotChecked=0, Total=110
[2023-12-22 20:24:03,260 INFO  L87              Difference]: Start difference. First operand 52 states and 80 transitions. Second operand  has 8 states, 8 states have (on average 3.875) internal successors, (31), 7 states have internal predecessors, (31), 2 states have call successors, (22), 2 states have call predecessors, (22), 3 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22)
[2023-12-22 20:24:04,152 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-22 20:24:04,152 INFO  L93              Difference]: Finished difference Result 165 states and 246 transitions.
[2023-12-22 20:24:04,152 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. 
[2023-12-22 20:24:04,153 INFO  L78                 Accepts]: Start accepts. Automaton has  has 8 states, 8 states have (on average 3.875) internal successors, (31), 7 states have internal predecessors, (31), 2 states have call successors, (22), 2 states have call predecessors, (22), 3 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) Word has length 132
[2023-12-22 20:24:04,153 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-22 20:24:04,154 INFO  L225             Difference]: With dead ends: 165
[2023-12-22 20:24:04,154 INFO  L226             Difference]: Without dead ends: 114
[2023-12-22 20:24:04,155 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 297 GetRequests, 277 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 63 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=124, Invalid=338, Unknown=0, NotChecked=0, Total=462
[2023-12-22 20:24:04,156 INFO  L413           NwaCegarLoop]: 91 mSDtfsCounter, 113 mSDsluCounter, 173 mSDsCounter, 0 mSdLazyCounter, 398 mSolverCounterSat, 49 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 133 SdHoareTripleChecker+Valid, 264 SdHoareTripleChecker+Invalid, 447 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 49 IncrementalHoareTripleChecker+Valid, 398 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time
[2023-12-22 20:24:04,157 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [133 Valid, 264 Invalid, 447 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [49 Valid, 398 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time]
[2023-12-22 20:24:04,157 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 114 states.
[2023-12-22 20:24:04,169 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 114 to 57.
[2023-12-22 20:24:04,170 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 57 states, 32 states have (on average 1.25) internal successors, (40), 32 states have internal predecessors, (40), 22 states have call successors, (22), 2 states have call predecessors, (22), 2 states have return successors, (22), 22 states have call predecessors, (22), 22 states have call successors, (22)
[2023-12-22 20:24:04,172 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 57 states to 57 states and 84 transitions.
[2023-12-22 20:24:04,172 INFO  L78                 Accepts]: Start accepts. Automaton has 57 states and 84 transitions. Word has length 132
[2023-12-22 20:24:04,173 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-22 20:24:04,173 INFO  L495      AbstractCegarLoop]: Abstraction has 57 states and 84 transitions.
[2023-12-22 20:24:04,173 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 8 states, 8 states have (on average 3.875) internal successors, (31), 7 states have internal predecessors, (31), 2 states have call successors, (22), 2 states have call predecessors, (22), 3 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22)
[2023-12-22 20:24:04,173 INFO  L276                IsEmpty]: Start isEmpty. Operand 57 states and 84 transitions.
[2023-12-22 20:24:04,174 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 133
[2023-12-22 20:24:04,174 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-22 20:24:04,174 INFO  L195           NwaCegarLoop]: trace histogram [22, 22, 22, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2023-12-22 20:24:04,181 INFO  L540       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0
[2023-12-22 20:24:04,385 INFO  L552       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (5)] Ended with exit code 0
[2023-12-22 20:24:04,581 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt
[2023-12-22 20:24:04,581 INFO  L420      AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-22 20:24:04,582 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-22 20:24:04,582 INFO  L85        PathProgramCache]: Analyzing trace with hash -1465304035, now seen corresponding path program 1 times
[2023-12-22 20:24:04,582 INFO  L118   FreeRefinementEngine]: Executing refinement strategy WOLF
[2023-12-22 20:24:04,582 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [406073380]
[2023-12-22 20:24:04,582 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-22 20:24:04,583 INFO  L173          SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3
[2023-12-22 20:24:04,583 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat
[2023-12-22 20:24:04,587 INFO  L229       MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null)
[2023-12-22 20:24:04,590 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Waiting until timeout for monitored process
[2023-12-22 20:24:04,732 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-22 20:24:04,741 INFO  L262         TraceCheckSpWp]: Trace formula consists of 218 conjuncts, 23 conjunts are in the unsatisfiable core
[2023-12-22 20:24:04,746 INFO  L285         TraceCheckSpWp]: Computing forward predicates...