/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_loopvsstraightlinecode_50-while_file-34.i


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


This is Ultimate 0.2.4-tmp.fs.bitabs-eval-d9c3e40-m
[2023-12-24 03:56:40,068 INFO  L188        SettingsManager]: Resetting all preferences to default values...
[2023-12-24 03:56:40,117 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 03:56:40,121 WARN  L101        SettingsManager]: Preference file contains the following unknown settings:
[2023-12-24 03:56:40,121 WARN  L103        SettingsManager]:   * de.uni_freiburg.informatik.ultimate.core.Log level for class
[2023-12-24 03:56:40,140 INFO  L130        SettingsManager]: Preferences different from defaults after loading the file:
[2023-12-24 03:56:40,141 INFO  L151        SettingsManager]: Preferences of UltimateCore differ from their defaults:
[2023-12-24 03:56:40,141 INFO  L153        SettingsManager]:  * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR;
[2023-12-24 03:56:40,142 INFO  L151        SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults:
[2023-12-24 03:56:40,142 INFO  L153        SettingsManager]:  * Use memory slicer=true
[2023-12-24 03:56:40,142 INFO  L151        SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults:
[2023-12-24 03:56:40,143 INFO  L153        SettingsManager]:  * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS
[2023-12-24 03:56:40,143 INFO  L151        SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2023-12-24 03:56:40,144 INFO  L153        SettingsManager]:  * Create parallel compositions if possible=false
[2023-12-24 03:56:40,144 INFO  L153        SettingsManager]:  * Use SBE=true
[2023-12-24 03:56:40,144 INFO  L151        SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2023-12-24 03:56:40,145 INFO  L153        SettingsManager]:  * Pointer base address is valid at dereference=IGNORE
[2023-12-24 03:56:40,145 INFO  L153        SettingsManager]:  * sizeof long=4
[2023-12-24 03:56:40,145 INFO  L153        SettingsManager]:  * sizeof POINTER=4
[2023-12-24 03:56:40,146 INFO  L153        SettingsManager]:  * Check division by zero=IGNORE
[2023-12-24 03:56:40,146 INFO  L153        SettingsManager]:  * Pointer to allocated memory at dereference=IGNORE
[2023-12-24 03:56:40,147 INFO  L153        SettingsManager]:  * If two pointers are subtracted or compared they have the same base address=IGNORE
[2023-12-24 03:56:40,147 INFO  L153        SettingsManager]:  * Check array bounds for arrays that are off heap=IGNORE
[2023-12-24 03:56:40,147 INFO  L153        SettingsManager]:  * Adapt memory model on pointer casts if necessary=true
[2023-12-24 03:56:40,148 INFO  L153        SettingsManager]:  * Use bitvectors instead of ints=true
[2023-12-24 03:56:40,148 INFO  L153        SettingsManager]:  * Allow undefined functions=false
[2023-12-24 03:56:40,148 INFO  L153        SettingsManager]:  * Memory model=HoenickeLindenmann_4ByteResolution
[2023-12-24 03:56:40,149 INFO  L153        SettingsManager]:  * sizeof long double=12
[2023-12-24 03:56:40,149 INFO  L153        SettingsManager]:  * Check if freed pointer was valid=false
[2023-12-24 03:56:40,149 INFO  L153        SettingsManager]:  * Use constant arrays=true
[2023-12-24 03:56:40,150 INFO  L151        SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2023-12-24 03:56:40,150 INFO  L153        SettingsManager]:  * Size of a code block=SequenceOfStatements
[2023-12-24 03:56:40,150 INFO  L153        SettingsManager]:  * Only consider context switches at boundaries of atomic blocks=true
[2023-12-24 03:56:40,150 INFO  L153        SettingsManager]:  * SMT solver=External_DefaultMode
[2023-12-24 03:56:40,151 INFO  L153        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2023-12-24 03:56:40,151 INFO  L151        SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2023-12-24 03:56:40,151 INFO  L153        SettingsManager]:  * Compute Interpolants along a Counterexample=FPandBP
[2023-12-24 03:56:40,152 INFO  L153        SettingsManager]:  * Positions where we compute the Hoare Annotation=LoopHeads
[2023-12-24 03:56:40,152 INFO  L153        SettingsManager]:  * Trace refinement strategy=WOLF
[2023-12-24 03:56:40,152 INFO  L153        SettingsManager]:  * Command for external solver=cvc4 --incremental --print-success --lang smt
[2023-12-24 03:56:40,152 INFO  L153        SettingsManager]:  * Apply one-shot large block encoding in concurrent analysis=false
[2023-12-24 03:56:40,156 INFO  L153        SettingsManager]:  * Automaton type used in concurrency analysis=PETRI_NET
[2023-12-24 03:56:40,156 INFO  L153        SettingsManager]:  * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true
[2023-12-24 03:56:40,156 INFO  L153        SettingsManager]:  * Order on configurations for Petri net unfoldings=DBO
[2023-12-24 03:56:40,157 INFO  L153        SettingsManager]:  * SMT solver=External_ModelsAndUnsatCoreMode
[2023-12-24 03:56:40,157 INFO  L153        SettingsManager]:  * Logic for external solver=AUFBV
[2023-12-24 03:56:40,157 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$1
WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations
WARNING: All illegal access operations will be denied in a future release
[2023-12-24 03:56:40,381 INFO  L75    nceAwareModelManager]: Repository-Root is: /tmp
[2023-12-24 03:56:40,400 INFO  L261   ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2023-12-24 03:56:40,402 INFO  L217   ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2023-12-24 03:56:40,403 INFO  L270        PluginConnector]: Initializing CDTParser...
[2023-12-24 03:56:40,403 INFO  L274        PluginConnector]: CDTParser initialized
[2023-12-24 03:56:40,404 INFO  L431   ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/hardness-nfm22/hardness_loopvsstraightlinecode_50-while_file-34.i
[2023-12-24 03:56:41,529 INFO  L533              CDTParser]: Created temporary CDT project at NULL
[2023-12-24 03:56:41,705 INFO  L384              CDTParser]: Found 1 translation units.
[2023-12-24 03:56:41,706 INFO  L180              CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/hardness-nfm22/hardness_loopvsstraightlinecode_50-while_file-34.i
[2023-12-24 03:56:41,713 INFO  L427              CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b313d7288/a89f905abc93490d8964fa41291e5fbc/FLAGac476cea6
[2023-12-24 03:56:41,723 INFO  L435              CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b313d7288/a89f905abc93490d8964fa41291e5fbc
[2023-12-24 03:56:41,725 INFO  L299   ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2023-12-24 03:56:41,727 INFO  L133        ToolchainWalker]: Walking toolchain with 5 elements.
[2023-12-24 03:56:41,728 INFO  L112        PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2023-12-24 03:56:41,728 INFO  L270        PluginConnector]: Initializing CACSL2BoogieTranslator...
[2023-12-24 03:56:41,732 INFO  L274        PluginConnector]: CACSL2BoogieTranslator initialized
[2023-12-24 03:56:41,732 INFO  L184        PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.12 03:56:41" (1/1) ...
[2023-12-24 03:56:41,733 INFO  L204        PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@107a16e8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.12 03:56:41, skipping insertion in model container
[2023-12-24 03:56:41,733 INFO  L184        PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.12 03:56:41" (1/1) ...
[2023-12-24 03:56:41,763 INFO  L177         MainTranslator]: Built tables and reachable declarations
[2023-12-24 03:56:41,882 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_loopvsstraightlinecode_50-while_file-34.i[915,928]
[2023-12-24 03:56:41,920 INFO  L209          PostProcessor]: Analyzing one entry point: main
[2023-12-24 03:56:41,933 INFO  L202         MainTranslator]: Completed pre-run
[2023-12-24 03:56:41,941 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_loopvsstraightlinecode_50-while_file-34.i[915,928]
[2023-12-24 03:56:41,988 INFO  L209          PostProcessor]: Analyzing one entry point: main
[2023-12-24 03:56:42,011 INFO  L206         MainTranslator]: Completed translation
[2023-12-24 03:56:42,011 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.12 03:56:42 WrapperNode
[2023-12-24 03:56:42,011 INFO  L131        PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2023-12-24 03:56:42,012 INFO  L112        PluginConnector]: ------------------------Boogie Procedure Inliner----------------------------
[2023-12-24 03:56:42,012 INFO  L270        PluginConnector]: Initializing Boogie Procedure Inliner...
[2023-12-24 03:56:42,013 INFO  L274        PluginConnector]: Boogie Procedure Inliner initialized
[2023-12-24 03:56:42,018 INFO  L184        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.12 03:56:42" (1/1) ...
[2023-12-24 03:56:42,027 INFO  L184        PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.12 03:56:42" (1/1) ...
[2023-12-24 03:56:42,058 INFO  L138                Inliner]: procedures = 27, calls = 26, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 124
[2023-12-24 03:56:42,058 INFO  L131        PluginConnector]: ------------------------ END Boogie Procedure Inliner----------------------------
[2023-12-24 03:56:42,059 INFO  L112        PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2023-12-24 03:56:42,059 INFO  L270        PluginConnector]: Initializing Boogie Preprocessor...
[2023-12-24 03:56:42,059 INFO  L274        PluginConnector]: Boogie Preprocessor initialized
[2023-12-24 03:56:42,070 INFO  L184        PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.12 03:56:42" (1/1) ...
[2023-12-24 03:56:42,071 INFO  L184        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.12 03:56:42" (1/1) ...
[2023-12-24 03:56:42,074 INFO  L184        PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.12 03:56:42" (1/1) ...
[2023-12-24 03:56:42,084 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 03:56:42,084 INFO  L184        PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.12 03:56:42" (1/1) ...
[2023-12-24 03:56:42,084 INFO  L184        PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.12 03:56:42" (1/1) ...
[2023-12-24 03:56:42,091 INFO  L184        PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.12 03:56:42" (1/1) ...
[2023-12-24 03:56:42,093 INFO  L184        PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.12 03:56:42" (1/1) ...
[2023-12-24 03:56:42,095 INFO  L184        PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.12 03:56:42" (1/1) ...
[2023-12-24 03:56:42,096 INFO  L184        PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.12 03:56:42" (1/1) ...
[2023-12-24 03:56:42,099 INFO  L131        PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2023-12-24 03:56:42,100 INFO  L112        PluginConnector]: ------------------------RCFGBuilder----------------------------
[2023-12-24 03:56:42,100 INFO  L270        PluginConnector]: Initializing RCFGBuilder...
[2023-12-24 03:56:42,100 INFO  L274        PluginConnector]: RCFGBuilder initialized
[2023-12-24 03:56:42,101 INFO  L184        PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.12 03:56:42" (1/1) ...
[2023-12-24 03:56:42,105 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2023-12-24 03:56:42,118 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2023-12-24 03:56:42,129 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 03:56:42,131 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 03:56:42,148 INFO  L130     BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit
[2023-12-24 03:56:42,148 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0
[2023-12-24 03:56:42,149 INFO  L130     BoogieDeclarations]: Found specification of procedure assume_abort_if_not
[2023-12-24 03:56:42,149 INFO  L138     BoogieDeclarations]: Found implementation of procedure assume_abort_if_not
[2023-12-24 03:56:42,149 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2023-12-24 03:56:42,149 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2023-12-24 03:56:42,214 INFO  L241             CfgBuilder]: Building ICFG
[2023-12-24 03:56:42,215 INFO  L267             CfgBuilder]: Building CFG for each procedure with an implementation
[2023-12-24 03:56:42,517 INFO  L282             CfgBuilder]: Performing block encoding
[2023-12-24 03:56:42,566 INFO  L304             CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2023-12-24 03:56:42,567 INFO  L309             CfgBuilder]: Removed 1 assume(true) statements.
[2023-12-24 03:56:42,567 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.12 03:56:42 BoogieIcfgContainer
[2023-12-24 03:56:42,567 INFO  L131        PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2023-12-24 03:56:42,569 INFO  L112        PluginConnector]: ------------------------TraceAbstraction----------------------------
[2023-12-24 03:56:42,569 INFO  L270        PluginConnector]: Initializing TraceAbstraction...
[2023-12-24 03:56:42,571 INFO  L274        PluginConnector]: TraceAbstraction initialized
[2023-12-24 03:56:42,571 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.12 03:56:41" (1/3) ...
[2023-12-24 03:56:42,572 INFO  L204        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7470e009 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.12 03:56:42, skipping insertion in model container
[2023-12-24 03:56:42,572 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.12 03:56:42" (2/3) ...
[2023-12-24 03:56:42,572 INFO  L204        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7470e009 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.12 03:56:42, skipping insertion in model container
[2023-12-24 03:56:42,573 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.12 03:56:42" (3/3) ...
[2023-12-24 03:56:42,573 INFO  L112   eAbstractionObserver]: Analyzing ICFG hardness_loopvsstraightlinecode_50-while_file-34.i
[2023-12-24 03:56:42,587 INFO  L204   ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2023-12-24 03:56:42,588 INFO  L163   ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations.
[2023-12-24 03:56:42,625 INFO  L356      AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ========
[2023-12-24 03:56:42,630 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;@23c1a10f, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms]
[2023-12-24 03:56:42,630 INFO  L358      AbstractCegarLoop]: Starting to check reachability of 1 error locations.
[2023-12-24 03:56:42,634 INFO  L276                IsEmpty]: Start isEmpty. Operand  has 46 states, 30 states have (on average 1.5333333333333334) internal successors, (46), 31 states have internal predecessors, (46), 13 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 13 states have call predecessors, (13), 13 states have call successors, (13)
[2023-12-24 03:56:42,642 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 87
[2023-12-24 03:56:42,642 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-24 03:56:42,642 INFO  L195           NwaCegarLoop]: trace histogram [13, 13, 13, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 03:56:42,643 INFO  L420      AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-24 03:56:42,647 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-24 03:56:42,647 INFO  L85        PathProgramCache]: Analyzing trace with hash 1434516893, now seen corresponding path program 1 times
[2023-12-24 03:56:42,657 INFO  L118   FreeRefinementEngine]: Executing refinement strategy WOLF
[2023-12-24 03:56:42,657 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1777441548]
[2023-12-24 03:56:42,658 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-24 03:56:42,658 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 03:56:42,658 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat
[2023-12-24 03:56:42,664 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 03:56:42,686 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 03:56:42,835 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-24 03:56:42,843 INFO  L262         TraceCheckSpWp]: Trace formula consists of 163 conjuncts, 1 conjunts are in the unsatisfiable core
[2023-12-24 03:56:42,850 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-12-24 03:56:42,879 INFO  L134       CoverageAnalysis]: Checked inductivity of 312 backedges. 104 proven. 0 refuted. 0 times theorem prover too weak. 208 trivial. 0 not checked.
[2023-12-24 03:56:42,879 INFO  L323         TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2023-12-24 03:56:42,880 INFO  L136   FreeRefinementEngine]: Strategy WOLF found an infeasible trace
[2023-12-24 03:56:42,880 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1777441548]
[2023-12-24 03:56:42,880 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleMathsat [1777441548] provided 1 perfect and 0 imperfect interpolant sequences
[2023-12-24 03:56:42,880 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-12-24 03:56:42,881 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2023-12-24 03:56:42,882 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1593012489]
[2023-12-24 03:56:42,882 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-24 03:56:42,886 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 2 states
[2023-12-24 03:56:42,886 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF
[2023-12-24 03:56:42,906 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants.
[2023-12-24 03:56:42,907 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2
[2023-12-24 03:56:42,909 INFO  L87              Difference]: Start difference. First operand  has 46 states, 30 states have (on average 1.5333333333333334) internal successors, (46), 31 states have internal predecessors, (46), 13 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 13 states have call predecessors, (13), 13 states have call successors, (13) Second operand  has 2 states, 2 states have (on average 14.0) internal successors, (28), 2 states have internal predecessors, (28), 2 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13)
[2023-12-24 03:56:42,959 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-24 03:56:42,959 INFO  L93              Difference]: Finished difference Result 89 states and 155 transitions.
[2023-12-24 03:56:42,963 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2023-12-24 03:56:42,965 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), 2 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 86
[2023-12-24 03:56:42,965 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-24 03:56:42,972 INFO  L225             Difference]: With dead ends: 89
[2023-12-24 03:56:42,972 INFO  L226             Difference]: Without dead ends: 44
[2023-12-24 03:56:42,976 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 85 GetRequests, 85 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 03:56:42,981 INFO  L413           NwaCegarLoop]: 64 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, 64 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 03:56:42,982 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 64 Invalid, 3 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2023-12-24 03:56:42,996 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 44 states.
[2023-12-24 03:56:43,013 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 44 to 44.
[2023-12-24 03:56:43,014 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 44 states, 29 states have (on average 1.4137931034482758) internal successors, (41), 29 states have internal predecessors, (41), 13 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 13 states have call predecessors, (13), 13 states have call successors, (13)
[2023-12-24 03:56:43,015 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 44 states to 44 states and 67 transitions.
[2023-12-24 03:56:43,017 INFO  L78                 Accepts]: Start accepts. Automaton has 44 states and 67 transitions. Word has length 86
[2023-12-24 03:56:43,017 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-24 03:56:43,017 INFO  L495      AbstractCegarLoop]: Abstraction has 44 states and 67 transitions.
[2023-12-24 03:56:43,017 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), 2 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13)
[2023-12-24 03:56:43,017 INFO  L276                IsEmpty]: Start isEmpty. Operand 44 states and 67 transitions.
[2023-12-24 03:56:43,020 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 87
[2023-12-24 03:56:43,020 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-24 03:56:43,020 INFO  L195           NwaCegarLoop]: trace histogram [13, 13, 13, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 03:56:43,027 INFO  L552       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Ended with exit code 0
[2023-12-24 03:56:43,226 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 03:56:43,227 INFO  L420      AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-24 03:56:43,228 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-24 03:56:43,228 INFO  L85        PathProgramCache]: Analyzing trace with hash -605554213, now seen corresponding path program 1 times
[2023-12-24 03:56:43,229 INFO  L118   FreeRefinementEngine]: Executing refinement strategy WOLF
[2023-12-24 03:56:43,229 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1670801631]
[2023-12-24 03:56:43,229 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-24 03:56:43,229 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 03:56:43,230 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat
[2023-12-24 03:56:43,231 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 03:56:43,232 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 03:56:43,355 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-24 03:56:43,362 INFO  L262         TraceCheckSpWp]: Trace formula consists of 163 conjuncts, 5 conjunts are in the unsatisfiable core
[2023-12-24 03:56:43,367 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-12-24 03:56:43,538 INFO  L134       CoverageAnalysis]: Checked inductivity of 312 backedges. 78 proven. 3 refuted. 0 times theorem prover too weak. 231 trivial. 0 not checked.
[2023-12-24 03:56:43,538 INFO  L327         TraceCheckSpWp]: Computing backward predicates...
[2023-12-24 03:56:43,711 INFO  L134       CoverageAnalysis]: Checked inductivity of 312 backedges. 33 proven. 3 refuted. 0 times theorem prover too weak. 276 trivial. 0 not checked.
[2023-12-24 03:56:43,711 INFO  L136   FreeRefinementEngine]: Strategy WOLF found an infeasible trace
[2023-12-24 03:56:43,715 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1670801631]
[2023-12-24 03:56:43,716 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleMathsat [1670801631] provided 0 perfect and 2 imperfect interpolant sequences
[2023-12-24 03:56:43,716 INFO  L185   FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences.
[2023-12-24 03:56:43,716 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 8
[2023-12-24 03:56:43,717 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [572326978]
[2023-12-24 03:56:43,717 INFO  L85    oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton
[2023-12-24 03:56:43,719 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 8 states
[2023-12-24 03:56:43,720 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF
[2023-12-24 03:56:43,721 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2023-12-24 03:56:43,721 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56
[2023-12-24 03:56:43,722 INFO  L87              Difference]: Start difference. First operand 44 states and 67 transitions. Second operand  has 8 states, 8 states have (on average 4.125) internal successors, (33), 8 states have internal predecessors, (33), 2 states have call successors, (14), 2 states have call predecessors, (14), 4 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15)
[2023-12-24 03:56:44,201 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-24 03:56:44,201 INFO  L93              Difference]: Finished difference Result 142 states and 209 transitions.
[2023-12-24 03:56:44,203 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. 
[2023-12-24 03:56:44,203 INFO  L78                 Accepts]: Start accepts. Automaton has  has 8 states, 8 states have (on average 4.125) internal successors, (33), 8 states have internal predecessors, (33), 2 states have call successors, (14), 2 states have call predecessors, (14), 4 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) Word has length 86
[2023-12-24 03:56:44,204 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-24 03:56:44,205 INFO  L225             Difference]: With dead ends: 142
[2023-12-24 03:56:44,205 INFO  L226             Difference]: Without dead ends: 99
[2023-12-24 03:56:44,206 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 181 GetRequests, 164 SyntacticMatches, 1 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 34 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=103, Invalid=203, Unknown=0, NotChecked=0, Total=306
[2023-12-24 03:56:44,207 INFO  L413           NwaCegarLoop]: 70 mSDtfsCounter, 179 mSDsluCounter, 129 mSDsCounter, 0 mSdLazyCounter, 177 mSolverCounterSat, 54 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 191 SdHoareTripleChecker+Valid, 199 SdHoareTripleChecker+Invalid, 231 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 54 IncrementalHoareTripleChecker+Valid, 177 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time
[2023-12-24 03:56:44,207 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [191 Valid, 199 Invalid, 231 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [54 Valid, 177 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time]
[2023-12-24 03:56:44,208 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 99 states.
[2023-12-24 03:56:44,259 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 99 to 93.
[2023-12-24 03:56:44,260 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 93 states, 62 states have (on average 1.3709677419354838) internal successors, (85), 62 states have internal predecessors, (85), 26 states have call successors, (26), 4 states have call predecessors, (26), 4 states have return successors, (26), 26 states have call predecessors, (26), 26 states have call successors, (26)
[2023-12-24 03:56:44,264 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 93 states to 93 states and 137 transitions.
[2023-12-24 03:56:44,264 INFO  L78                 Accepts]: Start accepts. Automaton has 93 states and 137 transitions. Word has length 86
[2023-12-24 03:56:44,265 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-24 03:56:44,265 INFO  L495      AbstractCegarLoop]: Abstraction has 93 states and 137 transitions.
[2023-12-24 03:56:44,266 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 8 states, 8 states have (on average 4.125) internal successors, (33), 8 states have internal predecessors, (33), 2 states have call successors, (14), 2 states have call predecessors, (14), 4 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15)
[2023-12-24 03:56:44,266 INFO  L276                IsEmpty]: Start isEmpty. Operand 93 states and 137 transitions.
[2023-12-24 03:56:44,271 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 87
[2023-12-24 03:56:44,272 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-24 03:56:44,272 INFO  L195           NwaCegarLoop]: trace histogram [13, 13, 13, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 03:56:44,284 INFO  L540       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0
[2023-12-24 03:56:44,480 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 03:56:44,481 INFO  L420      AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-24 03:56:44,482 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-24 03:56:44,482 INFO  L85        PathProgramCache]: Analyzing trace with hash 95510365, now seen corresponding path program 1 times
[2023-12-24 03:56:44,482 INFO  L118   FreeRefinementEngine]: Executing refinement strategy WOLF
[2023-12-24 03:56:44,482 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2136703524]
[2023-12-24 03:56:44,483 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-24 03:56:44,483 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 03:56:44,483 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat
[2023-12-24 03:56:44,486 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 03:56:44,488 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 03:56:44,615 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-24 03:56:44,622 INFO  L262         TraceCheckSpWp]: Trace formula consists of 163 conjuncts, 3 conjunts are in the unsatisfiable core
[2023-12-24 03:56:44,627 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-12-24 03:56:44,761 INFO  L134       CoverageAnalysis]: Checked inductivity of 312 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 312 trivial. 0 not checked.
[2023-12-24 03:56:44,761 INFO  L323         TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2023-12-24 03:56:44,761 INFO  L136   FreeRefinementEngine]: Strategy WOLF found an infeasible trace
[2023-12-24 03:56:44,764 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2136703524]
[2023-12-24 03:56:44,766 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleMathsat [2136703524] provided 1 perfect and 0 imperfect interpolant sequences
[2023-12-24 03:56:44,768 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-12-24 03:56:44,771 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2023-12-24 03:56:44,771 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2029641197]
[2023-12-24 03:56:44,771 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-24 03:56:44,772 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2023-12-24 03:56:44,772 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF
[2023-12-24 03:56:44,773 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2023-12-24 03:56:44,773 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2023-12-24 03:56:44,773 INFO  L87              Difference]: Start difference. First operand 93 states and 137 transitions. Second operand  has 4 states, 4 states have (on average 6.0) internal successors, (24), 3 states have internal predecessors, (24), 1 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13)
[2023-12-24 03:56:44,938 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-24 03:56:44,938 INFO  L93              Difference]: Finished difference Result 205 states and 300 transitions.
[2023-12-24 03:56:44,945 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2023-12-24 03:56:44,945 INFO  L78                 Accepts]: Start accepts. Automaton has  has 4 states, 4 states have (on average 6.0) internal successors, (24), 3 states have internal predecessors, (24), 1 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) Word has length 86
[2023-12-24 03:56:44,946 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-24 03:56:44,947 INFO  L225             Difference]: With dead ends: 205
[2023-12-24 03:56:44,947 INFO  L226             Difference]: Without dead ends: 113
[2023-12-24 03:56:44,948 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 86 GetRequests, 83 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20
[2023-12-24 03:56:44,949 INFO  L413           NwaCegarLoop]: 83 mSDtfsCounter, 63 mSDsluCounter, 121 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 28 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 63 SdHoareTripleChecker+Valid, 204 SdHoareTripleChecker+Invalid, 44 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 28 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2023-12-24 03:56:44,949 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [63 Valid, 204 Invalid, 44 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [28 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2023-12-24 03:56:44,950 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 113 states.
[2023-12-24 03:56:44,969 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 113 to 95.
[2023-12-24 03:56:44,970 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 95 states, 64 states have (on average 1.328125) internal successors, (85), 64 states have internal predecessors, (85), 26 states have call successors, (26), 4 states have call predecessors, (26), 4 states have return successors, (26), 26 states have call predecessors, (26), 26 states have call successors, (26)
[2023-12-24 03:56:44,971 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 95 states to 95 states and 137 transitions.
[2023-12-24 03:56:44,972 INFO  L78                 Accepts]: Start accepts. Automaton has 95 states and 137 transitions. Word has length 86
[2023-12-24 03:56:44,972 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-24 03:56:44,973 INFO  L495      AbstractCegarLoop]: Abstraction has 95 states and 137 transitions.
[2023-12-24 03:56:44,974 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 4 states, 4 states have (on average 6.0) internal successors, (24), 3 states have internal predecessors, (24), 1 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13)
[2023-12-24 03:56:44,974 INFO  L276                IsEmpty]: Start isEmpty. Operand 95 states and 137 transitions.
[2023-12-24 03:56:44,975 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 88
[2023-12-24 03:56:44,975 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-24 03:56:44,976 INFO  L195           NwaCegarLoop]: trace histogram [13, 13, 13, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 03:56:44,984 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
[2023-12-24 03:56:45,182 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 03:56:45,183 INFO  L420      AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-24 03:56:45,183 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-24 03:56:45,183 INFO  L85        PathProgramCache]: Analyzing trace with hash 1768999310, now seen corresponding path program 1 times
[2023-12-24 03:56:45,184 INFO  L118   FreeRefinementEngine]: Executing refinement strategy WOLF
[2023-12-24 03:56:45,184 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1888535361]
[2023-12-24 03:56:45,184 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-24 03:56:45,184 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 03:56:45,184 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat
[2023-12-24 03:56:45,185 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 03:56:45,196 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 03:56:45,282 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-24 03:56:45,287 INFO  L262         TraceCheckSpWp]: Trace formula consists of 165 conjuncts, 5 conjunts are in the unsatisfiable core
[2023-12-24 03:56:45,290 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-12-24 03:56:45,610 INFO  L134       CoverageAnalysis]: Checked inductivity of 312 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 312 trivial. 0 not checked.
[2023-12-24 03:56:45,610 INFO  L323         TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2023-12-24 03:56:45,610 INFO  L136   FreeRefinementEngine]: Strategy WOLF found an infeasible trace
[2023-12-24 03:56:45,610 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1888535361]
[2023-12-24 03:56:45,610 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleMathsat [1888535361] provided 1 perfect and 0 imperfect interpolant sequences
[2023-12-24 03:56:45,611 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-12-24 03:56:45,611 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5
[2023-12-24 03:56:45,611 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2012314336]
[2023-12-24 03:56:45,611 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-24 03:56:45,611 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 6 states
[2023-12-24 03:56:45,611 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF
[2023-12-24 03:56:45,612 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants.
[2023-12-24 03:56:45,612 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30
[2023-12-24 03:56:45,612 INFO  L87              Difference]: Start difference. First operand 95 states and 137 transitions. Second operand  has 6 states, 6 states have (on average 4.166666666666667) internal successors, (25), 5 states have internal predecessors, (25), 1 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13)
[2023-12-24 03:56:45,903 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-24 03:56:45,904 INFO  L93              Difference]: Finished difference Result 321 states and 462 transitions.
[2023-12-24 03:56:45,904 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. 
[2023-12-24 03:56:45,904 INFO  L78                 Accepts]: Start accepts. Automaton has  has 6 states, 6 states have (on average 4.166666666666667) internal successors, (25), 5 states have internal predecessors, (25), 1 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) Word has length 87
[2023-12-24 03:56:45,906 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-24 03:56:45,909 INFO  L225             Difference]: With dead ends: 321
[2023-12-24 03:56:45,911 INFO  L226             Difference]: Without dead ends: 227
[2023-12-24 03:56:45,913 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 88 GetRequests, 82 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56
[2023-12-24 03:56:45,913 INFO  L413           NwaCegarLoop]: 101 mSDtfsCounter, 80 mSDsluCounter, 150 mSDsCounter, 0 mSdLazyCounter, 87 mSolverCounterSat, 27 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 80 SdHoareTripleChecker+Valid, 251 SdHoareTripleChecker+Invalid, 114 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 27 IncrementalHoareTripleChecker+Valid, 87 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time
[2023-12-24 03:56:45,914 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [80 Valid, 251 Invalid, 114 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [27 Valid, 87 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time]
[2023-12-24 03:56:45,914 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 227 states.
[2023-12-24 03:56:45,953 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 227 to 183.
[2023-12-24 03:56:45,954 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 183 states, 122 states have (on average 1.2950819672131149) internal successors, (158), 122 states have internal predecessors, (158), 52 states have call successors, (52), 8 states have call predecessors, (52), 8 states have return successors, (52), 52 states have call predecessors, (52), 52 states have call successors, (52)
[2023-12-24 03:56:45,956 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 183 states to 183 states and 262 transitions.
[2023-12-24 03:56:45,956 INFO  L78                 Accepts]: Start accepts. Automaton has 183 states and 262 transitions. Word has length 87
[2023-12-24 03:56:45,957 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-24 03:56:45,957 INFO  L495      AbstractCegarLoop]: Abstraction has 183 states and 262 transitions.
[2023-12-24 03:56:45,958 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 6 states, 6 states have (on average 4.166666666666667) internal successors, (25), 5 states have internal predecessors, (25), 1 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13)
[2023-12-24 03:56:45,958 INFO  L276                IsEmpty]: Start isEmpty. Operand 183 states and 262 transitions.
[2023-12-24 03:56:45,960 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 89
[2023-12-24 03:56:45,960 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-24 03:56:45,960 INFO  L195           NwaCegarLoop]: trace histogram [13, 13, 13, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 03:56:45,969 INFO  L540       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0
[2023-12-24 03:56:46,166 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3
[2023-12-24 03:56:46,166 INFO  L420      AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-24 03:56:46,167 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-24 03:56:46,167 INFO  L85        PathProgramCache]: Analyzing trace with hash 289309397, now seen corresponding path program 1 times
[2023-12-24 03:56:46,167 INFO  L118   FreeRefinementEngine]: Executing refinement strategy WOLF
[2023-12-24 03:56:46,168 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2035462670]
[2023-12-24 03:56:46,168 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-24 03:56:46,168 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 03:56:46,168 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat
[2023-12-24 03:56:46,169 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)
[2023-12-24 03:56:46,197 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
[2023-12-24 03:56:46,293 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-24 03:56:46,301 INFO  L262         TraceCheckSpWp]: Trace formula consists of 167 conjuncts, 30 conjunts are in the unsatisfiable core
[2023-12-24 03:56:46,310 INFO  L285         TraceCheckSpWp]: Computing forward predicates...