/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_operatoramount_amount50_file-45.i


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


This is Ultimate 0.2.4-tmp.fs.bitabs-eval-d9c3e40-m
[2023-12-24 10:48:24,858 INFO  L188        SettingsManager]: Resetting all preferences to default values...
[2023-12-24 10:48:24,933 INFO  L114        SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Bitvector.epf
[2023-12-24 10:48:24,937 WARN  L101        SettingsManager]: Preference file contains the following unknown settings:
[2023-12-24 10:48:24,937 WARN  L103        SettingsManager]:   * de.uni_freiburg.informatik.ultimate.core.Log level for class
[2023-12-24 10:48:24,959 INFO  L130        SettingsManager]: Preferences different from defaults after loading the file:
[2023-12-24 10:48:24,959 INFO  L151        SettingsManager]: Preferences of UltimateCore differ from their defaults:
[2023-12-24 10:48:24,959 INFO  L153        SettingsManager]:  * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR;
[2023-12-24 10:48:24,960 INFO  L151        SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults:
[2023-12-24 10:48:24,963 INFO  L153        SettingsManager]:  * Use memory slicer=true
[2023-12-24 10:48:24,963 INFO  L151        SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults:
[2023-12-24 10:48:24,963 INFO  L153        SettingsManager]:  * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS
[2023-12-24 10:48:24,963 INFO  L151        SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2023-12-24 10:48:24,964 INFO  L153        SettingsManager]:  * Create parallel compositions if possible=false
[2023-12-24 10:48:24,965 INFO  L153        SettingsManager]:  * Use SBE=true
[2023-12-24 10:48:24,965 INFO  L151        SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2023-12-24 10:48:24,965 INFO  L153        SettingsManager]:  * Pointer base address is valid at dereference=IGNORE
[2023-12-24 10:48:24,965 INFO  L153        SettingsManager]:  * sizeof long=4
[2023-12-24 10:48:24,966 INFO  L153        SettingsManager]:  * sizeof POINTER=4
[2023-12-24 10:48:24,966 INFO  L153        SettingsManager]:  * Check division by zero=IGNORE
[2023-12-24 10:48:24,966 INFO  L153        SettingsManager]:  * Pointer to allocated memory at dereference=IGNORE
[2023-12-24 10:48:24,966 INFO  L153        SettingsManager]:  * If two pointers are subtracted or compared they have the same base address=IGNORE
[2023-12-24 10:48:24,966 INFO  L153        SettingsManager]:  * Check array bounds for arrays that are off heap=IGNORE
[2023-12-24 10:48:24,967 INFO  L153        SettingsManager]:  * Adapt memory model on pointer casts if necessary=true
[2023-12-24 10:48:24,967 INFO  L153        SettingsManager]:  * Use bitvectors instead of ints=true
[2023-12-24 10:48:24,967 INFO  L153        SettingsManager]:  * Allow undefined functions=false
[2023-12-24 10:48:24,967 INFO  L153        SettingsManager]:  * Memory model=HoenickeLindenmann_4ByteResolution
[2023-12-24 10:48:24,967 INFO  L153        SettingsManager]:  * sizeof long double=12
[2023-12-24 10:48:24,967 INFO  L153        SettingsManager]:  * Check if freed pointer was valid=false
[2023-12-24 10:48:24,967 INFO  L153        SettingsManager]:  * Use constant arrays=true
[2023-12-24 10:48:24,968 INFO  L151        SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2023-12-24 10:48:24,968 INFO  L153        SettingsManager]:  * Size of a code block=SequenceOfStatements
[2023-12-24 10:48:24,968 INFO  L153        SettingsManager]:  * Only consider context switches at boundaries of atomic blocks=true
[2023-12-24 10:48:24,969 INFO  L153        SettingsManager]:  * SMT solver=External_DefaultMode
[2023-12-24 10:48:24,969 INFO  L153        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2023-12-24 10:48:24,969 INFO  L151        SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2023-12-24 10:48:24,969 INFO  L153        SettingsManager]:  * Compute Interpolants along a Counterexample=FPandBP
[2023-12-24 10:48:24,969 INFO  L153        SettingsManager]:  * Positions where we compute the Hoare Annotation=LoopHeads
[2023-12-24 10:48:24,969 INFO  L153        SettingsManager]:  * Trace refinement strategy=WOLF
[2023-12-24 10:48:24,969 INFO  L153        SettingsManager]:  * Command for external solver=cvc4 --incremental --print-success --lang smt
[2023-12-24 10:48:24,970 INFO  L153        SettingsManager]:  * Apply one-shot large block encoding in concurrent analysis=false
[2023-12-24 10:48:24,970 INFO  L153        SettingsManager]:  * Automaton type used in concurrency analysis=PETRI_NET
[2023-12-24 10:48:24,970 INFO  L153        SettingsManager]:  * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true
[2023-12-24 10:48:24,970 INFO  L153        SettingsManager]:  * Order on configurations for Petri net unfoldings=DBO
[2023-12-24 10:48:24,970 INFO  L153        SettingsManager]:  * SMT solver=External_ModelsAndUnsatCoreMode
[2023-12-24 10:48:24,970 INFO  L153        SettingsManager]:  * Logic for external solver=AUFBV
[2023-12-24 10:48:24,971 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$1
WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations
WARNING: All illegal access operations will be denied in a future release
[2023-12-24 10:48:25,159 INFO  L75    nceAwareModelManager]: Repository-Root is: /tmp
[2023-12-24 10:48:25,180 INFO  L261   ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2023-12-24 10:48:25,181 INFO  L217   ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2023-12-24 10:48:25,182 INFO  L270        PluginConnector]: Initializing CDTParser...
[2023-12-24 10:48:25,182 INFO  L274        PluginConnector]: CDTParser initialized
[2023-12-24 10:48:25,184 INFO  L431   ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/hardness-nfm22/hardness_operatoramount_amount50_file-45.i
[2023-12-24 10:48:26,158 INFO  L533              CDTParser]: Created temporary CDT project at NULL
[2023-12-24 10:48:26,335 INFO  L384              CDTParser]: Found 1 translation units.
[2023-12-24 10:48:26,339 INFO  L180              CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/hardness-nfm22/hardness_operatoramount_amount50_file-45.i
[2023-12-24 10:48:26,350 INFO  L427              CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4f21801a2/5db5b35f3e7f486bbd534e0fa2f14f67/FLAG0d7e3387e
[2023-12-24 10:48:26,360 INFO  L435              CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4f21801a2/5db5b35f3e7f486bbd534e0fa2f14f67
[2023-12-24 10:48:26,361 INFO  L299   ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2023-12-24 10:48:26,362 INFO  L133        ToolchainWalker]: Walking toolchain with 5 elements.
[2023-12-24 10:48:26,364 INFO  L112        PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2023-12-24 10:48:26,364 INFO  L270        PluginConnector]: Initializing CACSL2BoogieTranslator...
[2023-12-24 10:48:26,368 INFO  L274        PluginConnector]: CACSL2BoogieTranslator initialized
[2023-12-24 10:48:26,369 INFO  L184        PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.12 10:48:26" (1/1) ...
[2023-12-24 10:48:26,370 INFO  L204        PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3c5eea34 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.12 10:48:26, skipping insertion in model container
[2023-12-24 10:48:26,370 INFO  L184        PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.12 10:48:26" (1/1) ...
[2023-12-24 10:48:26,400 INFO  L177         MainTranslator]: Built tables and reachable declarations
[2023-12-24 10:48:26,527 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_operatoramount_amount50_file-45.i[915,928]
[2023-12-24 10:48:26,588 INFO  L209          PostProcessor]: Analyzing one entry point: main
[2023-12-24 10:48:26,603 INFO  L202         MainTranslator]: Completed pre-run
[2023-12-24 10:48:26,613 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_operatoramount_amount50_file-45.i[915,928]
[2023-12-24 10:48:26,637 INFO  L209          PostProcessor]: Analyzing one entry point: main
[2023-12-24 10:48:26,649 INFO  L206         MainTranslator]: Completed translation
[2023-12-24 10:48:26,649 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.12 10:48:26 WrapperNode
[2023-12-24 10:48:26,649 INFO  L131        PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2023-12-24 10:48:26,650 INFO  L112        PluginConnector]: ------------------------Boogie Procedure Inliner----------------------------
[2023-12-24 10:48:26,650 INFO  L270        PluginConnector]: Initializing Boogie Procedure Inliner...
[2023-12-24 10:48:26,650 INFO  L274        PluginConnector]: Boogie Procedure Inliner initialized
[2023-12-24 10:48:26,655 INFO  L184        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.12 10:48:26" (1/1) ...
[2023-12-24 10:48:26,665 INFO  L184        PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.12 10:48:26" (1/1) ...
[2023-12-24 10:48:26,685 INFO  L138                Inliner]: procedures = 27, calls = 29, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 118
[2023-12-24 10:48:26,686 INFO  L131        PluginConnector]: ------------------------ END Boogie Procedure Inliner----------------------------
[2023-12-24 10:48:26,686 INFO  L112        PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2023-12-24 10:48:26,686 INFO  L270        PluginConnector]: Initializing Boogie Preprocessor...
[2023-12-24 10:48:26,686 INFO  L274        PluginConnector]: Boogie Preprocessor initialized
[2023-12-24 10:48:26,694 INFO  L184        PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.12 10:48:26" (1/1) ...
[2023-12-24 10:48:26,694 INFO  L184        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.12 10:48:26" (1/1) ...
[2023-12-24 10:48:26,697 INFO  L184        PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.12 10:48:26" (1/1) ...
[2023-12-24 10:48:26,706 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].
[2023-12-24 10:48:26,706 INFO  L184        PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.12 10:48:26" (1/1) ...
[2023-12-24 10:48:26,706 INFO  L184        PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.12 10:48:26" (1/1) ...
[2023-12-24 10:48:26,716 INFO  L184        PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.12 10:48:26" (1/1) ...
[2023-12-24 10:48:26,719 INFO  L184        PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.12 10:48:26" (1/1) ...
[2023-12-24 10:48:26,720 INFO  L184        PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.12 10:48:26" (1/1) ...
[2023-12-24 10:48:26,721 INFO  L184        PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.12 10:48:26" (1/1) ...
[2023-12-24 10:48:26,723 INFO  L131        PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2023-12-24 10:48:26,732 INFO  L112        PluginConnector]: ------------------------RCFGBuilder----------------------------
[2023-12-24 10:48:26,732 INFO  L270        PluginConnector]: Initializing RCFGBuilder...
[2023-12-24 10:48:26,732 INFO  L274        PluginConnector]: RCFGBuilder initialized
[2023-12-24 10:48:26,732 INFO  L184        PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.12 10:48:26" (1/1) ...
[2023-12-24 10:48:26,736 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2023-12-24 10:48:26,745 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2023-12-24 10:48:26,754 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)
[2023-12-24 10:48:26,772 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
[2023-12-24 10:48:26,781 INFO  L130     BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit
[2023-12-24 10:48:26,782 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0
[2023-12-24 10:48:26,782 INFO  L130     BoogieDeclarations]: Found specification of procedure assume_abort_if_not
[2023-12-24 10:48:26,783 INFO  L138     BoogieDeclarations]: Found implementation of procedure assume_abort_if_not
[2023-12-24 10:48:26,784 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2023-12-24 10:48:26,784 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2023-12-24 10:48:26,842 INFO  L241             CfgBuilder]: Building ICFG
[2023-12-24 10:48:26,844 INFO  L267             CfgBuilder]: Building CFG for each procedure with an implementation
[2023-12-24 10:48:27,103 INFO  L282             CfgBuilder]: Performing block encoding
[2023-12-24 10:48:27,148 INFO  L304             CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2023-12-24 10:48:27,148 INFO  L309             CfgBuilder]: Removed 1 assume(true) statements.
[2023-12-24 10:48:27,148 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.12 10:48:27 BoogieIcfgContainer
[2023-12-24 10:48:27,148 INFO  L131        PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2023-12-24 10:48:27,150 INFO  L112        PluginConnector]: ------------------------TraceAbstraction----------------------------
[2023-12-24 10:48:27,150 INFO  L270        PluginConnector]: Initializing TraceAbstraction...
[2023-12-24 10:48:27,152 INFO  L274        PluginConnector]: TraceAbstraction initialized
[2023-12-24 10:48:27,152 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.12 10:48:26" (1/3) ...
[2023-12-24 10:48:27,153 INFO  L204        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@705290d0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.12 10:48:27, skipping insertion in model container
[2023-12-24 10:48:27,153 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.12 10:48:26" (2/3) ...
[2023-12-24 10:48:27,153 INFO  L204        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@705290d0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.12 10:48:27, skipping insertion in model container
[2023-12-24 10:48:27,153 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.12 10:48:27" (3/3) ...
[2023-12-24 10:48:27,154 INFO  L112   eAbstractionObserver]: Analyzing ICFG hardness_operatoramount_amount50_file-45.i
[2023-12-24 10:48:27,165 INFO  L204   ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2023-12-24 10:48:27,166 INFO  L163   ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations.
[2023-12-24 10:48:27,201 INFO  L356      AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ========
[2023-12-24 10:48:27,205 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;@2a2e9b1f, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms]
[2023-12-24 10:48:27,206 INFO  L358      AbstractCegarLoop]: Starting to check reachability of 1 error locations.
[2023-12-24 10:48:27,209 INFO  L276                IsEmpty]: Start isEmpty. Operand  has 51 states, 32 states have (on average 1.46875) internal successors, (47), 33 states have internal predecessors, (47), 16 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 16 states have call predecessors, (16), 16 states have call successors, (16)
[2023-12-24 10:48:27,216 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 104
[2023-12-24 10:48:27,216 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-24 10:48:27,217 INFO  L195           NwaCegarLoop]: trace histogram [16, 16, 16, 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]
[2023-12-24 10:48:27,217 INFO  L420      AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-24 10:48:27,221 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-24 10:48:27,221 INFO  L85        PathProgramCache]: Analyzing trace with hash 1315104657, now seen corresponding path program 1 times
[2023-12-24 10:48:27,229 INFO  L118   FreeRefinementEngine]: Executing refinement strategy WOLF
[2023-12-24 10:48:27,230 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1797017201]
[2023-12-24 10:48:27,230 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-24 10:48:27,230 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
[2023-12-24 10:48:27,230 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat
[2023-12-24 10:48:27,233 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)
[2023-12-24 10:48:27,235 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
[2023-12-24 10:48:27,379 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-24 10:48:27,383 INFO  L262         TraceCheckSpWp]: Trace formula consists of 173 conjuncts, 1 conjunts are in the unsatisfiable core
[2023-12-24 10:48:27,390 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-12-24 10:48:27,415 INFO  L134       CoverageAnalysis]: Checked inductivity of 480 backedges. 30 proven. 0 refuted. 0 times theorem prover too weak. 450 trivial. 0 not checked.
[2023-12-24 10:48:27,415 INFO  L323         TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2023-12-24 10:48:27,415 INFO  L136   FreeRefinementEngine]: Strategy WOLF found an infeasible trace
[2023-12-24 10:48:27,416 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1797017201]
[2023-12-24 10:48:27,416 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleMathsat [1797017201] provided 1 perfect and 0 imperfect interpolant sequences
[2023-12-24 10:48:27,416 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-12-24 10:48:27,416 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2023-12-24 10:48:27,417 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [402902126]
[2023-12-24 10:48:27,418 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-24 10:48:27,420 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 2 states
[2023-12-24 10:48:27,420 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF
[2023-12-24 10:48:27,442 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants.
[2023-12-24 10:48:27,443 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2
[2023-12-24 10:48:27,444 INFO  L87              Difference]: Start difference. First operand  has 51 states, 32 states have (on average 1.46875) internal successors, (47), 33 states have internal predecessors, (47), 16 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 16 states have call predecessors, (16), 16 states have call successors, (16) Second operand  has 2 states, 2 states have (on average 14.0) internal successors, (28), 2 states have internal predecessors, (28), 1 states have call successors, (16), 1 states have call predecessors, (16), 2 states have return successors, (16), 2 states have call predecessors, (16), 1 states have call successors, (16)
[2023-12-24 10:48:27,494 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-24 10:48:27,494 INFO  L93              Difference]: Finished difference Result 99 states and 172 transitions.
[2023-12-24 10:48:27,498 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2023-12-24 10:48:27,500 INFO  L78                 Accepts]: Start accepts. Automaton has  has 2 states, 2 states have (on average 14.0) internal successors, (28), 2 states have internal predecessors, (28), 1 states have call successors, (16), 1 states have call predecessors, (16), 2 states have return successors, (16), 2 states have call predecessors, (16), 1 states have call successors, (16) Word has length 103
[2023-12-24 10:48:27,500 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-24 10:48:27,504 INFO  L225             Difference]: With dead ends: 99
[2023-12-24 10:48:27,504 INFO  L226             Difference]: Without dead ends: 49
[2023-12-24 10:48:27,507 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 102 GetRequests, 102 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2
[2023-12-24 10:48:27,509 INFO  L413           NwaCegarLoop]: 71 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 71 SdHoareTripleChecker+Invalid, 3 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2023-12-24 10:48:27,509 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 71 Invalid, 3 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2023-12-24 10:48:27,520 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 49 states.
[2023-12-24 10:48:27,532 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 49 to 49.
[2023-12-24 10:48:27,533 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 49 states, 31 states have (on average 1.3548387096774193) internal successors, (42), 31 states have internal predecessors, (42), 16 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 16 states have call predecessors, (16), 16 states have call successors, (16)
[2023-12-24 10:48:27,534 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 49 states to 49 states and 74 transitions.
[2023-12-24 10:48:27,535 INFO  L78                 Accepts]: Start accepts. Automaton has 49 states and 74 transitions. Word has length 103
[2023-12-24 10:48:27,535 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-24 10:48:27,536 INFO  L495      AbstractCegarLoop]: Abstraction has 49 states and 74 transitions.
[2023-12-24 10:48:27,536 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 2 states, 2 states have (on average 14.0) internal successors, (28), 2 states have internal predecessors, (28), 1 states have call successors, (16), 1 states have call predecessors, (16), 2 states have return successors, (16), 2 states have call predecessors, (16), 1 states have call successors, (16)
[2023-12-24 10:48:27,536 INFO  L276                IsEmpty]: Start isEmpty. Operand 49 states and 74 transitions.
[2023-12-24 10:48:27,538 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 104
[2023-12-24 10:48:27,538 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-24 10:48:27,538 INFO  L195           NwaCegarLoop]: trace histogram [16, 16, 16, 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]
[2023-12-24 10:48:27,546 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
[2023-12-24 10:48:27,742 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
[2023-12-24 10:48:27,742 INFO  L420      AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-24 10:48:27,743 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-24 10:48:27,743 INFO  L85        PathProgramCache]: Analyzing trace with hash 1745471377, now seen corresponding path program 1 times
[2023-12-24 10:48:27,744 INFO  L118   FreeRefinementEngine]: Executing refinement strategy WOLF
[2023-12-24 10:48:27,744 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1687437740]
[2023-12-24 10:48:27,744 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-24 10:48:27,744 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
[2023-12-24 10:48:27,744 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat
[2023-12-24 10:48:27,745 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)
[2023-12-24 10:48:27,746 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
[2023-12-24 10:48:27,844 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-24 10:48:27,847 INFO  L262         TraceCheckSpWp]: Trace formula consists of 173 conjuncts, 5 conjunts are in the unsatisfiable core
[2023-12-24 10:48:27,856 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-12-24 10:48:28,009 INFO  L134       CoverageAnalysis]: Checked inductivity of 480 backedges. 99 proven. 3 refuted. 0 times theorem prover too weak. 378 trivial. 0 not checked.
[2023-12-24 10:48:28,010 INFO  L327         TraceCheckSpWp]: Computing backward predicates...
[2023-12-24 10:48:28,172 INFO  L134       CoverageAnalysis]: Checked inductivity of 480 backedges. 42 proven. 3 refuted. 0 times theorem prover too weak. 435 trivial. 0 not checked.
[2023-12-24 10:48:28,173 INFO  L136   FreeRefinementEngine]: Strategy WOLF found an infeasible trace
[2023-12-24 10:48:28,176 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1687437740]
[2023-12-24 10:48:28,177 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleMathsat [1687437740] provided 0 perfect and 2 imperfect interpolant sequences
[2023-12-24 10:48:28,177 INFO  L185   FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences.
[2023-12-24 10:48:28,177 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 9
[2023-12-24 10:48:28,177 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1115515388]
[2023-12-24 10:48:28,178 INFO  L85    oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton
[2023-12-24 10:48:28,180 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 9 states
[2023-12-24 10:48:28,180 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF
[2023-12-24 10:48:28,181 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants.
[2023-12-24 10:48:28,181 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72
[2023-12-24 10:48:28,182 INFO  L87              Difference]: Start difference. First operand 49 states and 74 transitions. Second operand  has 9 states, 9 states have (on average 4.888888888888889) internal successors, (44), 9 states have internal predecessors, (44), 2 states have call successors, (17), 2 states have call predecessors, (17), 4 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18)
[2023-12-24 10:48:28,463 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-24 10:48:28,464 INFO  L93              Difference]: Finished difference Result 102 states and 150 transitions.
[2023-12-24 10:48:28,464 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. 
[2023-12-24 10:48:28,465 INFO  L78                 Accepts]: Start accepts. Automaton has  has 9 states, 9 states have (on average 4.888888888888889) internal successors, (44), 9 states have internal predecessors, (44), 2 states have call successors, (17), 2 states have call predecessors, (17), 4 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) Word has length 103
[2023-12-24 10:48:28,465 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-24 10:48:28,466 INFO  L225             Difference]: With dead ends: 102
[2023-12-24 10:48:28,466 INFO  L226             Difference]: Without dead ends: 54
[2023-12-24 10:48:28,466 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 211 GetRequests, 197 SyntacticMatches, 1 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=77, Invalid=133, Unknown=0, NotChecked=0, Total=210
[2023-12-24 10:48:28,467 INFO  L413           NwaCegarLoop]: 44 mSDtfsCounter, 103 mSDsluCounter, 56 mSDsCounter, 0 mSdLazyCounter, 109 mSolverCounterSat, 98 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 104 SdHoareTripleChecker+Valid, 100 SdHoareTripleChecker+Invalid, 207 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 98 IncrementalHoareTripleChecker+Valid, 109 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time
[2023-12-24 10:48:28,467 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [104 Valid, 100 Invalid, 207 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [98 Valid, 109 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time]
[2023-12-24 10:48:28,468 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 54 states.
[2023-12-24 10:48:28,475 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 54 to 52.
[2023-12-24 10:48:28,476 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 52 states, 33 states have (on average 1.2121212121212122) internal successors, (40), 33 states have internal predecessors, (40), 16 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (16), 16 states have call predecessors, (16), 16 states have call successors, (16)
[2023-12-24 10:48:28,477 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 52 states to 52 states and 72 transitions.
[2023-12-24 10:48:28,477 INFO  L78                 Accepts]: Start accepts. Automaton has 52 states and 72 transitions. Word has length 103
[2023-12-24 10:48:28,479 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-24 10:48:28,479 INFO  L495      AbstractCegarLoop]: Abstraction has 52 states and 72 transitions.
[2023-12-24 10:48:28,479 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 9 states, 9 states have (on average 4.888888888888889) internal successors, (44), 9 states have internal predecessors, (44), 2 states have call successors, (17), 2 states have call predecessors, (17), 4 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18)
[2023-12-24 10:48:28,479 INFO  L276                IsEmpty]: Start isEmpty. Operand 52 states and 72 transitions.
[2023-12-24 10:48:28,480 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 105
[2023-12-24 10:48:28,481 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-24 10:48:28,481 INFO  L195           NwaCegarLoop]: trace histogram [16, 16, 16, 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]
[2023-12-24 10:48:28,493 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
[2023-12-24 10:48:28,681 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
[2023-12-24 10:48:28,682 INFO  L420      AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-24 10:48:28,682 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-24 10:48:28,682 INFO  L85        PathProgramCache]: Analyzing trace with hash -1739947945, now seen corresponding path program 1 times
[2023-12-24 10:48:28,683 INFO  L118   FreeRefinementEngine]: Executing refinement strategy WOLF
[2023-12-24 10:48:28,683 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [307093962]
[2023-12-24 10:48:28,683 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-24 10:48:28,683 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
[2023-12-24 10:48:28,683 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat
[2023-12-24 10:48:28,684 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)
[2023-12-24 10:48:28,685 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
[2023-12-24 10:48:28,759 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-24 10:48:28,762 INFO  L262         TraceCheckSpWp]: Trace formula consists of 174 conjuncts, 2 conjunts are in the unsatisfiable core
[2023-12-24 10:48:28,764 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-12-24 10:48:28,784 INFO  L134       CoverageAnalysis]: Checked inductivity of 480 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 480 trivial. 0 not checked.
[2023-12-24 10:48:28,784 INFO  L323         TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2023-12-24 10:48:28,784 INFO  L136   FreeRefinementEngine]: Strategy WOLF found an infeasible trace
[2023-12-24 10:48:28,784 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [307093962]
[2023-12-24 10:48:28,785 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleMathsat [307093962] provided 1 perfect and 0 imperfect interpolant sequences
[2023-12-24 10:48:28,785 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-12-24 10:48:28,785 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2023-12-24 10:48:28,785 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1705701379]
[2023-12-24 10:48:28,785 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-24 10:48:28,785 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2023-12-24 10:48:28,785 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF
[2023-12-24 10:48:28,786 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2023-12-24 10:48:28,786 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2023-12-24 10:48:28,786 INFO  L87              Difference]: Start difference. First operand 52 states and 72 transitions. Second operand  has 3 states, 3 states have (on average 9.0) internal successors, (27), 3 states have internal predecessors, (27), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16)
[2023-12-24 10:48:28,846 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-24 10:48:28,847 INFO  L93              Difference]: Finished difference Result 103 states and 143 transitions.
[2023-12-24 10:48:28,852 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2023-12-24 10:48:28,853 INFO  L78                 Accepts]: Start accepts. Automaton has  has 3 states, 3 states have (on average 9.0) internal successors, (27), 3 states have internal predecessors, (27), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) Word has length 104
[2023-12-24 10:48:28,853 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-24 10:48:28,854 INFO  L225             Difference]: With dead ends: 103
[2023-12-24 10:48:28,854 INFO  L226             Difference]: Without dead ends: 52
[2023-12-24 10:48:28,854 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 103 GetRequests, 102 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2023-12-24 10:48:28,855 INFO  L413           NwaCegarLoop]: 64 mSDtfsCounter, 2 mSDsluCounter, 60 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 124 SdHoareTripleChecker+Invalid, 8 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2023-12-24 10:48:28,855 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 124 Invalid, 8 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2023-12-24 10:48:28,856 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 52 states.
[2023-12-24 10:48:28,862 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 52 to 52.
[2023-12-24 10:48:28,862 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 52 states, 33 states have (on average 1.1818181818181819) internal successors, (39), 33 states have internal predecessors, (39), 16 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (16), 16 states have call predecessors, (16), 16 states have call successors, (16)
[2023-12-24 10:48:28,863 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 52 states to 52 states and 71 transitions.
[2023-12-24 10:48:28,863 INFO  L78                 Accepts]: Start accepts. Automaton has 52 states and 71 transitions. Word has length 104
[2023-12-24 10:48:28,863 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-24 10:48:28,864 INFO  L495      AbstractCegarLoop]: Abstraction has 52 states and 71 transitions.
[2023-12-24 10:48:28,864 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 9.0) internal successors, (27), 3 states have internal predecessors, (27), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16)
[2023-12-24 10:48:28,864 INFO  L276                IsEmpty]: Start isEmpty. Operand 52 states and 71 transitions.
[2023-12-24 10:48:28,865 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 106
[2023-12-24 10:48:28,865 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-24 10:48:28,865 INFO  L195           NwaCegarLoop]: trace histogram [16, 16, 16, 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]
[2023-12-24 10:48:28,871 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 (4)] Ended with exit code 0
[2023-12-24 10:48:29,069 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3
[2023-12-24 10:48:29,069 INFO  L420      AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-24 10:48:29,070 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-24 10:48:29,070 INFO  L85        PathProgramCache]: Analyzing trace with hash 1886654522, now seen corresponding path program 1 times
[2023-12-24 10:48:29,070 INFO  L118   FreeRefinementEngine]: Executing refinement strategy WOLF
[2023-12-24 10:48:29,070 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1585489850]
[2023-12-24 10:48:29,070 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-24 10:48:29,071 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
[2023-12-24 10:48:29,071 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat
[2023-12-24 10:48:29,072 INFO  L229       MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null)
[2023-12-24 10:48:29,075 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Waiting until timeout for monitored process
[2023-12-24 10:48:29,192 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-24 10:48:29,195 INFO  L262         TraceCheckSpWp]: Trace formula consists of 175 conjuncts, 24 conjunts are in the unsatisfiable core
[2023-12-24 10:48:29,200 INFO  L285         TraceCheckSpWp]: Computing forward predicates...