/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_50-1loop_file-10.i


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


This is Ultimate 0.2.4-tmp.fs.bitabs-eval-d9c3e40-m
[2023-12-24 02:37:03,831 INFO  L188        SettingsManager]: Resetting all preferences to default values...
[2023-12-24 02:37:03,907 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 02:37:03,912 WARN  L101        SettingsManager]: Preference file contains the following unknown settings:
[2023-12-24 02:37:03,912 WARN  L103        SettingsManager]:   * de.uni_freiburg.informatik.ultimate.core.Log level for class
[2023-12-24 02:37:03,934 INFO  L130        SettingsManager]: Preferences different from defaults after loading the file:
[2023-12-24 02:37:03,935 INFO  L151        SettingsManager]: Preferences of UltimateCore differ from their defaults:
[2023-12-24 02:37:03,935 INFO  L153        SettingsManager]:  * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR;
[2023-12-24 02:37:03,936 INFO  L151        SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults:
[2023-12-24 02:37:03,939 INFO  L153        SettingsManager]:  * Use memory slicer=true
[2023-12-24 02:37:03,939 INFO  L151        SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults:
[2023-12-24 02:37:03,939 INFO  L153        SettingsManager]:  * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS
[2023-12-24 02:37:03,940 INFO  L151        SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2023-12-24 02:37:03,941 INFO  L153        SettingsManager]:  * Create parallel compositions if possible=false
[2023-12-24 02:37:03,941 INFO  L153        SettingsManager]:  * Use SBE=true
[2023-12-24 02:37:03,941 INFO  L151        SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2023-12-24 02:37:03,941 INFO  L153        SettingsManager]:  * Pointer base address is valid at dereference=IGNORE
[2023-12-24 02:37:03,941 INFO  L153        SettingsManager]:  * sizeof long=4
[2023-12-24 02:37:03,942 INFO  L153        SettingsManager]:  * sizeof POINTER=4
[2023-12-24 02:37:03,942 INFO  L153        SettingsManager]:  * Check division by zero=IGNORE
[2023-12-24 02:37:03,942 INFO  L153        SettingsManager]:  * Pointer to allocated memory at dereference=IGNORE
[2023-12-24 02:37:03,942 INFO  L153        SettingsManager]:  * If two pointers are subtracted or compared they have the same base address=IGNORE
[2023-12-24 02:37:03,942 INFO  L153        SettingsManager]:  * Check array bounds for arrays that are off heap=IGNORE
[2023-12-24 02:37:03,943 INFO  L153        SettingsManager]:  * Adapt memory model on pointer casts if necessary=true
[2023-12-24 02:37:03,943 INFO  L153        SettingsManager]:  * Use bitvectors instead of ints=true
[2023-12-24 02:37:03,943 INFO  L153        SettingsManager]:  * Allow undefined functions=false
[2023-12-24 02:37:03,943 INFO  L153        SettingsManager]:  * Memory model=HoenickeLindenmann_4ByteResolution
[2023-12-24 02:37:03,943 INFO  L153        SettingsManager]:  * sizeof long double=12
[2023-12-24 02:37:03,943 INFO  L153        SettingsManager]:  * Check if freed pointer was valid=false
[2023-12-24 02:37:03,943 INFO  L153        SettingsManager]:  * Use constant arrays=true
[2023-12-24 02:37:03,944 INFO  L151        SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2023-12-24 02:37:03,944 INFO  L153        SettingsManager]:  * Size of a code block=SequenceOfStatements
[2023-12-24 02:37:03,944 INFO  L153        SettingsManager]:  * Only consider context switches at boundaries of atomic blocks=true
[2023-12-24 02:37:03,945 INFO  L153        SettingsManager]:  * SMT solver=External_DefaultMode
[2023-12-24 02:37:03,945 INFO  L153        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2023-12-24 02:37:03,945 INFO  L151        SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2023-12-24 02:37:03,945 INFO  L153        SettingsManager]:  * Compute Interpolants along a Counterexample=FPandBP
[2023-12-24 02:37:03,945 INFO  L153        SettingsManager]:  * Positions where we compute the Hoare Annotation=LoopHeads
[2023-12-24 02:37:03,945 INFO  L153        SettingsManager]:  * Trace refinement strategy=WOLF
[2023-12-24 02:37:03,945 INFO  L153        SettingsManager]:  * Command for external solver=cvc4 --incremental --print-success --lang smt
[2023-12-24 02:37:03,945 INFO  L153        SettingsManager]:  * Apply one-shot large block encoding in concurrent analysis=false
[2023-12-24 02:37:03,946 INFO  L153        SettingsManager]:  * Automaton type used in concurrency analysis=PETRI_NET
[2023-12-24 02:37:03,946 INFO  L153        SettingsManager]:  * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true
[2023-12-24 02:37:03,946 INFO  L153        SettingsManager]:  * Order on configurations for Petri net unfoldings=DBO
[2023-12-24 02:37:03,946 INFO  L153        SettingsManager]:  * SMT solver=External_ModelsAndUnsatCoreMode
[2023-12-24 02:37:03,946 INFO  L153        SettingsManager]:  * Logic for external solver=AUFBV
[2023-12-24 02:37:03,946 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$1
WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations
WARNING: All illegal access operations will be denied in a future release
[2023-12-24 02:37:04,115 INFO  L75    nceAwareModelManager]: Repository-Root is: /tmp
[2023-12-24 02:37:04,134 INFO  L261   ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2023-12-24 02:37:04,136 INFO  L217   ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2023-12-24 02:37:04,136 INFO  L270        PluginConnector]: Initializing CDTParser...
[2023-12-24 02:37:04,137 INFO  L274        PluginConnector]: CDTParser initialized
[2023-12-24 02:37:04,138 INFO  L431   ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/hardness-nfm22/hardness_loopvsstraightlinecode_50-1loop_file-10.i
[2023-12-24 02:37:05,220 INFO  L533              CDTParser]: Created temporary CDT project at NULL
[2023-12-24 02:37:05,361 INFO  L384              CDTParser]: Found 1 translation units.
[2023-12-24 02:37:05,362 INFO  L180              CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/hardness-nfm22/hardness_loopvsstraightlinecode_50-1loop_file-10.i
[2023-12-24 02:37:05,369 INFO  L427              CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b2572fe9d/33f14ac3677d4b5fa99589384b1a308a/FLAG49016f4f5
[2023-12-24 02:37:05,379 INFO  L435              CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b2572fe9d/33f14ac3677d4b5fa99589384b1a308a
[2023-12-24 02:37:05,381 INFO  L299   ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2023-12-24 02:37:05,382 INFO  L133        ToolchainWalker]: Walking toolchain with 5 elements.
[2023-12-24 02:37:05,383 INFO  L112        PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2023-12-24 02:37:05,383 INFO  L270        PluginConnector]: Initializing CACSL2BoogieTranslator...
[2023-12-24 02:37:05,394 INFO  L274        PluginConnector]: CACSL2BoogieTranslator initialized
[2023-12-24 02:37:05,394 INFO  L184        PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.12 02:37:05" (1/1) ...
[2023-12-24 02:37:05,395 INFO  L204        PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7866989 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.12 02:37:05, skipping insertion in model container
[2023-12-24 02:37:05,395 INFO  L184        PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.12 02:37:05" (1/1) ...
[2023-12-24 02:37:05,413 INFO  L177         MainTranslator]: Built tables and reachable declarations
[2023-12-24 02:37:05,514 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_50-1loop_file-10.i[915,928]
[2023-12-24 02:37:05,545 INFO  L209          PostProcessor]: Analyzing one entry point: main
[2023-12-24 02:37:05,554 INFO  L202         MainTranslator]: Completed pre-run
[2023-12-24 02:37:05,561 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_50-1loop_file-10.i[915,928]
[2023-12-24 02:37:05,581 INFO  L209          PostProcessor]: Analyzing one entry point: main
[2023-12-24 02:37:05,597 INFO  L206         MainTranslator]: Completed translation
[2023-12-24 02:37:05,597 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.12 02:37:05 WrapperNode
[2023-12-24 02:37:05,597 INFO  L131        PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2023-12-24 02:37:05,598 INFO  L112        PluginConnector]: ------------------------Boogie Procedure Inliner----------------------------
[2023-12-24 02:37:05,598 INFO  L270        PluginConnector]: Initializing Boogie Procedure Inliner...
[2023-12-24 02:37:05,598 INFO  L274        PluginConnector]: Boogie Procedure Inliner initialized
[2023-12-24 02:37:05,609 INFO  L184        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.12 02:37:05" (1/1) ...
[2023-12-24 02:37:05,617 INFO  L184        PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.12 02:37:05" (1/1) ...
[2023-12-24 02:37:05,634 INFO  L138                Inliner]: procedures = 27, calls = 31, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 128
[2023-12-24 02:37:05,634 INFO  L131        PluginConnector]: ------------------------ END Boogie Procedure Inliner----------------------------
[2023-12-24 02:37:05,635 INFO  L112        PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2023-12-24 02:37:05,635 INFO  L270        PluginConnector]: Initializing Boogie Preprocessor...
[2023-12-24 02:37:05,635 INFO  L274        PluginConnector]: Boogie Preprocessor initialized
[2023-12-24 02:37:05,642 INFO  L184        PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.12 02:37:05" (1/1) ...
[2023-12-24 02:37:05,642 INFO  L184        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.12 02:37:05" (1/1) ...
[2023-12-24 02:37:05,645 INFO  L184        PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.12 02:37:05" (1/1) ...
[2023-12-24 02:37:05,653 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 02:37:05,653 INFO  L184        PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.12 02:37:05" (1/1) ...
[2023-12-24 02:37:05,653 INFO  L184        PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.12 02:37:05" (1/1) ...
[2023-12-24 02:37:05,659 INFO  L184        PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.12 02:37:05" (1/1) ...
[2023-12-24 02:37:05,661 INFO  L184        PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.12 02:37:05" (1/1) ...
[2023-12-24 02:37:05,662 INFO  L184        PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.12 02:37:05" (1/1) ...
[2023-12-24 02:37:05,663 INFO  L184        PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.12 02:37:05" (1/1) ...
[2023-12-24 02:37:05,665 INFO  L131        PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2023-12-24 02:37:05,666 INFO  L112        PluginConnector]: ------------------------RCFGBuilder----------------------------
[2023-12-24 02:37:05,666 INFO  L270        PluginConnector]: Initializing RCFGBuilder...
[2023-12-24 02:37:05,666 INFO  L274        PluginConnector]: RCFGBuilder initialized
[2023-12-24 02:37:05,666 INFO  L184        PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.12 02:37:05" (1/1) ...
[2023-12-24 02:37:05,670 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2023-12-24 02:37:05,679 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2023-12-24 02:37:05,688 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 02:37:05,695 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 02:37:05,723 INFO  L130     BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit
[2023-12-24 02:37:05,723 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0
[2023-12-24 02:37:05,724 INFO  L130     BoogieDeclarations]: Found specification of procedure assume_abort_if_not
[2023-12-24 02:37:05,724 INFO  L138     BoogieDeclarations]: Found implementation of procedure assume_abort_if_not
[2023-12-24 02:37:05,724 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2023-12-24 02:37:05,724 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2023-12-24 02:37:05,777 INFO  L241             CfgBuilder]: Building ICFG
[2023-12-24 02:37:05,779 INFO  L267             CfgBuilder]: Building CFG for each procedure with an implementation
[2023-12-24 02:37:05,990 INFO  L282             CfgBuilder]: Performing block encoding
[2023-12-24 02:37:06,028 INFO  L304             CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2023-12-24 02:37:06,028 INFO  L309             CfgBuilder]: Removed 1 assume(true) statements.
[2023-12-24 02:37:06,028 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.12 02:37:06 BoogieIcfgContainer
[2023-12-24 02:37:06,029 INFO  L131        PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2023-12-24 02:37:06,030 INFO  L112        PluginConnector]: ------------------------TraceAbstraction----------------------------
[2023-12-24 02:37:06,030 INFO  L270        PluginConnector]: Initializing TraceAbstraction...
[2023-12-24 02:37:06,033 INFO  L274        PluginConnector]: TraceAbstraction initialized
[2023-12-24 02:37:06,033 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.12 02:37:05" (1/3) ...
[2023-12-24 02:37:06,033 INFO  L204        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@ae96bc9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.12 02:37:06, skipping insertion in model container
[2023-12-24 02:37:06,033 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.12 02:37:05" (2/3) ...
[2023-12-24 02:37:06,033 INFO  L204        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@ae96bc9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.12 02:37:06, skipping insertion in model container
[2023-12-24 02:37:06,033 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.12 02:37:06" (3/3) ...
[2023-12-24 02:37:06,034 INFO  L112   eAbstractionObserver]: Analyzing ICFG hardness_loopvsstraightlinecode_50-1loop_file-10.i
[2023-12-24 02:37:06,045 INFO  L204   ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2023-12-24 02:37:06,045 INFO  L163   ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations.
[2023-12-24 02:37:06,080 INFO  L356      AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ========
[2023-12-24 02:37:06,085 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;@3d6bca94, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms]
[2023-12-24 02:37:06,086 INFO  L358      AbstractCegarLoop]: Starting to check reachability of 1 error locations.
[2023-12-24 02:37:06,089 INFO  L276                IsEmpty]: Start isEmpty. Operand  has 53 states, 32 states have (on average 1.4375) internal successors, (46), 33 states have internal predecessors, (46), 18 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 18 states have call predecessors, (18), 18 states have call successors, (18)
[2023-12-24 02:37:06,098 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 115
[2023-12-24 02:37:06,098 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-24 02:37:06,098 INFO  L195           NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 02:37:06,099 INFO  L420      AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-24 02:37:06,103 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-24 02:37:06,103 INFO  L85        PathProgramCache]: Analyzing trace with hash -1986823724, now seen corresponding path program 1 times
[2023-12-24 02:37:06,114 INFO  L118   FreeRefinementEngine]: Executing refinement strategy WOLF
[2023-12-24 02:37:06,114 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [414479665]
[2023-12-24 02:37:06,114 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-24 02:37:06,115 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 02:37:06,115 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat
[2023-12-24 02:37:06,117 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 02:37:06,139 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 02:37:06,297 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-24 02:37:06,302 INFO  L262         TraceCheckSpWp]: Trace formula consists of 192 conjuncts, 1 conjunts are in the unsatisfiable core
[2023-12-24 02:37:06,309 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-12-24 02:37:06,343 INFO  L134       CoverageAnalysis]: Checked inductivity of 612 backedges. 154 proven. 0 refuted. 0 times theorem prover too weak. 458 trivial. 0 not checked.
[2023-12-24 02:37:06,343 INFO  L323         TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2023-12-24 02:37:06,344 INFO  L136   FreeRefinementEngine]: Strategy WOLF found an infeasible trace
[2023-12-24 02:37:06,344 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [414479665]
[2023-12-24 02:37:06,344 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleMathsat [414479665] provided 1 perfect and 0 imperfect interpolant sequences
[2023-12-24 02:37:06,345 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-12-24 02:37:06,345 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2023-12-24 02:37:06,346 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [420200412]
[2023-12-24 02:37:06,346 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-24 02:37:06,349 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 2 states
[2023-12-24 02:37:06,349 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF
[2023-12-24 02:37:06,375 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants.
[2023-12-24 02:37:06,375 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2
[2023-12-24 02:37:06,377 INFO  L87              Difference]: Start difference. First operand  has 53 states, 32 states have (on average 1.4375) internal successors, (46), 33 states have internal predecessors, (46), 18 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 18 states have call predecessors, (18), 18 states have call successors, (18) Second operand  has 2 states, 2 states have (on average 15.5) internal successors, (31), 2 states have internal predecessors, (31), 2 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18)
[2023-12-24 02:37:06,424 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-24 02:37:06,424 INFO  L93              Difference]: Finished difference Result 105 states and 181 transitions.
[2023-12-24 02:37:06,425 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2023-12-24 02:37:06,426 INFO  L78                 Accepts]: Start accepts. Automaton has  has 2 states, 2 states have (on average 15.5) internal successors, (31), 2 states have internal predecessors, (31), 2 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) Word has length 114
[2023-12-24 02:37:06,427 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-24 02:37:06,431 INFO  L225             Difference]: With dead ends: 105
[2023-12-24 02:37:06,431 INFO  L226             Difference]: Without dead ends: 51
[2023-12-24 02:37:06,433 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 113 GetRequests, 113 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 02:37:06,435 INFO  L413           NwaCegarLoop]: 74 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 74 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2023-12-24 02:37:06,436 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 74 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2023-12-24 02:37:06,446 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 51 states.
[2023-12-24 02:37:06,458 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 51 to 51.
[2023-12-24 02:37:06,458 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 51 states, 31 states have (on average 1.3225806451612903) internal successors, (41), 31 states have internal predecessors, (41), 18 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 18 states have call predecessors, (18), 18 states have call successors, (18)
[2023-12-24 02:37:06,460 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 51 states to 51 states and 77 transitions.
[2023-12-24 02:37:06,460 INFO  L78                 Accepts]: Start accepts. Automaton has 51 states and 77 transitions. Word has length 114
[2023-12-24 02:37:06,461 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-24 02:37:06,461 INFO  L495      AbstractCegarLoop]: Abstraction has 51 states and 77 transitions.
[2023-12-24 02:37:06,461 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 2 states, 2 states have (on average 15.5) internal successors, (31), 2 states have internal predecessors, (31), 2 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18)
[2023-12-24 02:37:06,461 INFO  L276                IsEmpty]: Start isEmpty. Operand 51 states and 77 transitions.
[2023-12-24 02:37:06,464 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 115
[2023-12-24 02:37:06,464 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-24 02:37:06,464 INFO  L195           NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 02:37:06,468 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 02:37:06,668 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 02:37:06,669 INFO  L420      AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-24 02:37:06,669 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-24 02:37:06,670 INFO  L85        PathProgramCache]: Analyzing trace with hash 725601044, now seen corresponding path program 1 times
[2023-12-24 02:37:06,670 INFO  L118   FreeRefinementEngine]: Executing refinement strategy WOLF
[2023-12-24 02:37:06,671 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1950127937]
[2023-12-24 02:37:06,671 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-24 02:37:06,671 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 02:37:06,671 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat
[2023-12-24 02:37:06,672 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 02:37:06,696 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 02:37:06,750 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-24 02:37:06,754 INFO  L262         TraceCheckSpWp]: Trace formula consists of 192 conjuncts, 3 conjunts are in the unsatisfiable core
[2023-12-24 02:37:06,758 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-12-24 02:37:06,979 INFO  L134       CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked.
[2023-12-24 02:37:06,980 INFO  L323         TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2023-12-24 02:37:06,980 INFO  L136   FreeRefinementEngine]: Strategy WOLF found an infeasible trace
[2023-12-24 02:37:06,982 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1950127937]
[2023-12-24 02:37:06,982 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleMathsat [1950127937] provided 1 perfect and 0 imperfect interpolant sequences
[2023-12-24 02:37:06,982 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-12-24 02:37:06,983 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2023-12-24 02:37:06,983 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [603692494]
[2023-12-24 02:37:06,983 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-24 02:37:06,997 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2023-12-24 02:37:06,997 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF
[2023-12-24 02:37:06,998 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2023-12-24 02:37:06,998 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2023-12-24 02:37:06,998 INFO  L87              Difference]: Start difference. First operand 51 states and 77 transitions. Second operand  has 4 states, 4 states have (on average 6.75) internal successors, (27), 3 states have internal predecessors, (27), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18)
[2023-12-24 02:37:07,146 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-24 02:37:07,147 INFO  L93              Difference]: Finished difference Result 181 states and 271 transitions.
[2023-12-24 02:37:07,147 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. 
[2023-12-24 02:37:07,148 INFO  L78                 Accepts]: Start accepts. Automaton has  has 4 states, 4 states have (on average 6.75) internal successors, (27), 3 states have internal predecessors, (27), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) Word has length 114
[2023-12-24 02:37:07,149 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-24 02:37:07,153 INFO  L225             Difference]: With dead ends: 181
[2023-12-24 02:37:07,154 INFO  L226             Difference]: Without dead ends: 131
[2023-12-24 02:37:07,155 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 114 GetRequests, 111 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 02:37:07,156 INFO  L413           NwaCegarLoop]: 87 mSDtfsCounter, 79 mSDsluCounter, 154 mSDsCounter, 0 mSdLazyCounter, 24 mSolverCounterSat, 43 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 79 SdHoareTripleChecker+Valid, 241 SdHoareTripleChecker+Invalid, 67 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 43 IncrementalHoareTripleChecker+Valid, 24 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2023-12-24 02:37:07,156 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [79 Valid, 241 Invalid, 67 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [43 Valid, 24 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2023-12-24 02:37:07,157 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 131 states.
[2023-12-24 02:37:07,187 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 131 to 96.
[2023-12-24 02:37:07,188 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 96 states, 57 states have (on average 1.280701754385965) internal successors, (73), 57 states have internal predecessors, (73), 36 states have call successors, (36), 2 states have call predecessors, (36), 2 states have return successors, (36), 36 states have call predecessors, (36), 36 states have call successors, (36)
[2023-12-24 02:37:07,192 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 96 states to 96 states and 145 transitions.
[2023-12-24 02:37:07,192 INFO  L78                 Accepts]: Start accepts. Automaton has 96 states and 145 transitions. Word has length 114
[2023-12-24 02:37:07,194 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-24 02:37:07,194 INFO  L495      AbstractCegarLoop]: Abstraction has 96 states and 145 transitions.
[2023-12-24 02:37:07,195 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 4 states, 4 states have (on average 6.75) internal successors, (27), 3 states have internal predecessors, (27), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18)
[2023-12-24 02:37:07,195 INFO  L276                IsEmpty]: Start isEmpty. Operand 96 states and 145 transitions.
[2023-12-24 02:37:07,202 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 116
[2023-12-24 02:37:07,202 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-24 02:37:07,202 INFO  L195           NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 02:37:07,210 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 02:37:07,407 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 02:37:07,411 INFO  L420      AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-24 02:37:07,412 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-24 02:37:07,412 INFO  L85        PathProgramCache]: Analyzing trace with hash -1035518978, now seen corresponding path program 1 times
[2023-12-24 02:37:07,412 INFO  L118   FreeRefinementEngine]: Executing refinement strategy WOLF
[2023-12-24 02:37:07,413 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [408917267]
[2023-12-24 02:37:07,413 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-24 02:37:07,413 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 02:37:07,413 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat
[2023-12-24 02:37:07,416 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 02:37:07,440 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 02:37:07,510 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-24 02:37:07,513 INFO  L262         TraceCheckSpWp]: Trace formula consists of 192 conjuncts, 28 conjunts are in the unsatisfiable core
[2023-12-24 02:37:07,518 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-12-24 02:37:09,152 INFO  L134       CoverageAnalysis]: Checked inductivity of 612 backedges. 474 proven. 87 refuted. 0 times theorem prover too weak. 51 trivial. 0 not checked.
[2023-12-24 02:37:09,152 INFO  L327         TraceCheckSpWp]: Computing backward predicates...
[2023-12-24 02:37:09,891 INFO  L136   FreeRefinementEngine]: Strategy WOLF found an infeasible trace
[2023-12-24 02:37:09,892 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [408917267]
[2023-12-24 02:37:09,892 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleMathsat [408917267] provided 0 perfect and 1 imperfect interpolant sequences
[2023-12-24 02:37:09,892 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [443532708]
[2023-12-24 02:37:09,892 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-24 02:37:09,892 INFO  L173          SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt
[2023-12-24 02:37:09,892 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4
[2023-12-24 02:37:09,940 INFO  L229       MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null)
[2023-12-24 02:37:09,953 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (5)] Waiting until timeout for monitored process
[2023-12-24 02:37:10,074 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-24 02:37:10,088 INFO  L262         TraceCheckSpWp]: Trace formula consists of 192 conjuncts, 27 conjunts are in the unsatisfiable core
[2023-12-24 02:37:10,091 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-12-24 02:37:11,086 INFO  L134       CoverageAnalysis]: Checked inductivity of 612 backedges. 456 proven. 105 refuted. 0 times theorem prover too weak. 51 trivial. 0 not checked.
[2023-12-24 02:37:11,087 INFO  L327         TraceCheckSpWp]: Computing backward predicates...
[2023-12-24 02:37:11,276 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleCvc4 [443532708] provided 0 perfect and 1 imperfect interpolant sequences
[2023-12-24 02:37:11,276 INFO  L185   FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences.
[2023-12-24 02:37:11,276 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [29, 26] total 33
[2023-12-24 02:37:11,276 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [329524814]
[2023-12-24 02:37:11,276 INFO  L85    oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton
[2023-12-24 02:37:11,277 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 33 states
[2023-12-24 02:37:11,277 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF
[2023-12-24 02:37:11,278 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 33 interpolants.
[2023-12-24 02:37:11,278 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=344, Invalid=1636, Unknown=0, NotChecked=0, Total=1980
[2023-12-24 02:37:11,279 INFO  L87              Difference]: Start difference. First operand 96 states and 145 transitions. Second operand  has 33 states, 33 states have (on average 2.212121212121212) internal successors, (73), 31 states have internal predecessors, (73), 7 states have call successors, (18), 7 states have call predecessors, (18), 13 states have return successors, (19), 8 states have call predecessors, (19), 7 states have call successors, (19)
[2023-12-24 02:37:14,648 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-24 02:37:14,649 INFO  L93              Difference]: Finished difference Result 389 states and 509 transitions.
[2023-12-24 02:37:14,649 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 48 states. 
[2023-12-24 02:37:14,649 INFO  L78                 Accepts]: Start accepts. Automaton has  has 33 states, 33 states have (on average 2.212121212121212) internal successors, (73), 31 states have internal predecessors, (73), 7 states have call successors, (18), 7 states have call predecessors, (18), 13 states have return successors, (19), 8 states have call predecessors, (19), 7 states have call successors, (19) Word has length 115
[2023-12-24 02:37:14,650 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-24 02:37:14,652 INFO  L225             Difference]: With dead ends: 389
[2023-12-24 02:37:14,652 INFO  L226             Difference]: Without dead ends: 294
[2023-12-24 02:37:14,654 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 300 GetRequests, 230 SyntacticMatches, 0 SemanticMatches, 70 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1328 ImplicationChecksByTransitivity, 3.4s TimeCoverageRelationStatistics Valid=1056, Invalid=4056, Unknown=0, NotChecked=0, Total=5112
[2023-12-24 02:37:14,654 INFO  L413           NwaCegarLoop]: 47 mSDtfsCounter, 303 mSDsluCounter, 341 mSDsCounter, 0 mSdLazyCounter, 1138 mSolverCounterSat, 53 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 307 SdHoareTripleChecker+Valid, 388 SdHoareTripleChecker+Invalid, 1191 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 53 IncrementalHoareTripleChecker+Valid, 1138 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time
[2023-12-24 02:37:14,655 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [307 Valid, 388 Invalid, 1191 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [53 Valid, 1138 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time]
[2023-12-24 02:37:14,655 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 294 states.
[2023-12-24 02:37:14,670 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 294 to 182.
[2023-12-24 02:37:14,671 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 182 states, 129 states have (on average 1.2248062015503876) internal successors, (158), 129 states have internal predecessors, (158), 36 states have call successors, (36), 16 states have call predecessors, (36), 16 states have return successors, (36), 36 states have call predecessors, (36), 36 states have call successors, (36)
[2023-12-24 02:37:14,672 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 182 states to 182 states and 230 transitions.
[2023-12-24 02:37:14,672 INFO  L78                 Accepts]: Start accepts. Automaton has 182 states and 230 transitions. Word has length 115
[2023-12-24 02:37:14,672 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-24 02:37:14,672 INFO  L495      AbstractCegarLoop]: Abstraction has 182 states and 230 transitions.
[2023-12-24 02:37:14,673 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 33 states, 33 states have (on average 2.212121212121212) internal successors, (73), 31 states have internal predecessors, (73), 7 states have call successors, (18), 7 states have call predecessors, (18), 13 states have return successors, (19), 8 states have call predecessors, (19), 7 states have call successors, (19)
[2023-12-24 02:37:14,673 INFO  L276                IsEmpty]: Start isEmpty. Operand 182 states and 230 transitions.
[2023-12-24 02:37:14,674 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 116
[2023-12-24 02:37:14,674 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-24 02:37:14,674 INFO  L195           NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 02:37:14,678 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 02:37:14,881 INFO  L552       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (5)] Ended with exit code 0
[2023-12-24 02:37:15,081 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt
[2023-12-24 02:37:15,082 INFO  L420      AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-24 02:37:15,083 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-24 02:37:15,083 INFO  L85        PathProgramCache]: Analyzing trace with hash 1998576382, now seen corresponding path program 1 times
[2023-12-24 02:37:15,084 INFO  L118   FreeRefinementEngine]: Executing refinement strategy WOLF
[2023-12-24 02:37:15,084 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [186829569]
[2023-12-24 02:37:15,085 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-24 02:37:15,085 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 02:37:15,085 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat
[2023-12-24 02:37:15,086 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 02:37:15,114 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 02:37:15,169 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-24 02:37:15,172 INFO  L262         TraceCheckSpWp]: Trace formula consists of 192 conjuncts, 40 conjunts are in the unsatisfiable core
[2023-12-24 02:37:15,176 INFO  L285         TraceCheckSpWp]: Computing forward predicates...