/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml --cacsl2boogietranslator.allow.undefined.functions true --traceabstraction.trace.refinement.strategy WOLF -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Bitvector.epf -i ../../../trunk/examples/svcomp/hardness-nfm22/hardness_operatoramount_amount25_file-73.i


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


This is Ultimate 0.2.5-dev-17387ad-m
[2024-11-05 23:40:19,776 INFO  L188        SettingsManager]: Resetting all preferences to default values...
[2024-11-05 23:40:19,818 INFO  L114        SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Bitvector.epf
[2024-11-05 23:40:19,821 WARN  L101        SettingsManager]: Preference file contains the following unknown settings:
[2024-11-05 23:40:19,821 WARN  L103        SettingsManager]:   * de.uni_freiburg.informatik.ultimate.core.Log level for class
[2024-11-05 23:40:19,835 INFO  L130        SettingsManager]: Preferences different from defaults after loading the file:
[2024-11-05 23:40:19,835 INFO  L151        SettingsManager]: Preferences of UltimateCore differ from their defaults:
[2024-11-05 23:40:19,835 INFO  L153        SettingsManager]:  * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR;
[2024-11-05 23:40:19,836 INFO  L151        SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults:
[2024-11-05 23:40:19,836 INFO  L153        SettingsManager]:  * Use memory slicer=true
[2024-11-05 23:40:19,836 INFO  L151        SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults:
[2024-11-05 23:40:19,837 INFO  L153        SettingsManager]:  * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS
[2024-11-05 23:40:19,837 INFO  L151        SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2024-11-05 23:40:19,837 INFO  L153        SettingsManager]:  * Create parallel compositions if possible=false
[2024-11-05 23:40:19,837 INFO  L153        SettingsManager]:  * Use SBE=true
[2024-11-05 23:40:19,838 INFO  L151        SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2024-11-05 23:40:19,838 INFO  L153        SettingsManager]:  * Pointer base address is valid at dereference=IGNORE
[2024-11-05 23:40:19,840 INFO  L153        SettingsManager]:  * sizeof long=4
[2024-11-05 23:40:19,840 INFO  L153        SettingsManager]:  * sizeof POINTER=4
[2024-11-05 23:40:19,840 INFO  L153        SettingsManager]:  * Check division by zero=IGNORE
[2024-11-05 23:40:19,840 INFO  L153        SettingsManager]:  * Pointer to allocated memory at dereference=IGNORE
[2024-11-05 23:40:19,844 INFO  L153        SettingsManager]:  * If two pointers are subtracted or compared they have the same base address=IGNORE
[2024-11-05 23:40:19,844 INFO  L153        SettingsManager]:  * Check array bounds for arrays that are off heap=IGNORE
[2024-11-05 23:40:19,845 INFO  L153        SettingsManager]:  * Adapt memory model on pointer casts if necessary=true
[2024-11-05 23:40:19,845 INFO  L153        SettingsManager]:  * Use bitvectors instead of ints=true
[2024-11-05 23:40:19,845 INFO  L153        SettingsManager]:  * Allow undefined functions=false
[2024-11-05 23:40:19,845 INFO  L153        SettingsManager]:  * Memory model=HoenickeLindenmann_4ByteResolution
[2024-11-05 23:40:19,845 INFO  L153        SettingsManager]:  * sizeof long double=12
[2024-11-05 23:40:19,846 INFO  L153        SettingsManager]:  * Check if freed pointer was valid=false
[2024-11-05 23:40:19,846 INFO  L153        SettingsManager]:  * Use constant arrays=true
[2024-11-05 23:40:19,846 INFO  L151        SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2024-11-05 23:40:19,846 INFO  L153        SettingsManager]:  * Size of a code block=SequenceOfStatements
[2024-11-05 23:40:19,846 INFO  L153        SettingsManager]:  * Only consider context switches at boundaries of atomic blocks=true
[2024-11-05 23:40:19,846 INFO  L153        SettingsManager]:  * SMT solver=External_DefaultMode
[2024-11-05 23:40:19,847 INFO  L153        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2024-11-05 23:40:19,847 INFO  L151        SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2024-11-05 23:40:19,847 INFO  L153        SettingsManager]:  * Compute Interpolants along a Counterexample=FPandBP
[2024-11-05 23:40:19,847 INFO  L153        SettingsManager]:  * Positions where we compute the Hoare Annotation=LoopHeads
[2024-11-05 23:40:19,847 INFO  L153        SettingsManager]:  * Trace refinement strategy=WOLF
[2024-11-05 23:40:19,847 INFO  L153        SettingsManager]:  * Command for external solver=cvc4 --incremental --print-success --lang smt
[2024-11-05 23:40:19,848 INFO  L153        SettingsManager]:  * Apply one-shot large block encoding in concurrent analysis=false
[2024-11-05 23:40:19,849 INFO  L153        SettingsManager]:  * Automaton type used in concurrency analysis=PETRI_NET
[2024-11-05 23:40:19,849 INFO  L153        SettingsManager]:  * Order on configurations for Petri net unfoldings=DBO
[2024-11-05 23:40:19,849 INFO  L153        SettingsManager]:  * SMT solver=External_ModelsAndUnsatCoreMode
[2024-11-05 23:40:19,849 INFO  L153        SettingsManager]:  * Looper check in Petri net analysis=SEMANTIC
WARNING: An illegal reflective access operation has occurred
WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int)
WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1
WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations
WARNING: All illegal access operations will be denied in a future release
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Allow undefined functions -> true
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> WOLF
[2024-11-05 23:40:19,993 INFO  L75    nceAwareModelManager]: Repository-Root is: /tmp
[2024-11-05 23:40:20,011 INFO  L261   ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2024-11-05 23:40:20,015 INFO  L217   ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2024-11-05 23:40:20,015 INFO  L270        PluginConnector]: Initializing CDTParser...
[2024-11-05 23:40:20,016 INFO  L274        PluginConnector]: CDTParser initialized
[2024-11-05 23:40:20,016 INFO  L431   ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/hardness-nfm22/hardness_operatoramount_amount25_file-73.i
[2024-11-05 23:40:21,234 INFO  L533              CDTParser]: Created temporary CDT project at NULL
[2024-11-05 23:40:21,416 INFO  L384              CDTParser]: Found 1 translation units.
[2024-11-05 23:40:21,417 INFO  L180              CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/hardness-nfm22/hardness_operatoramount_amount25_file-73.i
[2024-11-05 23:40:21,423 INFO  L427              CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/87cf95a67/8cbe1907497b41b28241e43f22e06e38/FLAG0a3e38f4a
[2024-11-05 23:40:21,836 INFO  L435              CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/87cf95a67/8cbe1907497b41b28241e43f22e06e38
[2024-11-05 23:40:21,838 INFO  L299   ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2024-11-05 23:40:21,839 INFO  L133        ToolchainWalker]: Walking toolchain with 5 elements.
[2024-11-05 23:40:21,840 INFO  L112        PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2024-11-05 23:40:21,840 INFO  L270        PluginConnector]: Initializing CACSL2BoogieTranslator...
[2024-11-05 23:40:21,851 INFO  L274        PluginConnector]: CACSL2BoogieTranslator initialized
[2024-11-05 23:40:21,852 INFO  L184        PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 05.11 11:40:21" (1/1) ...
[2024-11-05 23:40:21,853 INFO  L204        PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@10a41ea and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 11:40:21, skipping insertion in model container
[2024-11-05 23:40:21,853 INFO  L184        PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 05.11 11:40:21" (1/1) ...
[2024-11-05 23:40:21,874 INFO  L175         MainTranslator]: Built tables and reachable declarations
[2024-11-05 23:40:22,003 WARN  L250   ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/hardness-nfm22/hardness_operatoramount_amount25_file-73.i[915,928]
[2024-11-05 23:40:22,042 INFO  L210          PostProcessor]: Analyzing one entry point: main
[2024-11-05 23:40:22,053 INFO  L200         MainTranslator]: Completed pre-run
[2024-11-05 23:40:22,064 WARN  L250   ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/hardness-nfm22/hardness_operatoramount_amount25_file-73.i[915,928]
[2024-11-05 23:40:22,076 INFO  L210          PostProcessor]: Analyzing one entry point: main
[2024-11-05 23:40:22,090 INFO  L204         MainTranslator]: Completed translation
[2024-11-05 23:40:22,091 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 11:40:22 WrapperNode
[2024-11-05 23:40:22,091 INFO  L131        PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2024-11-05 23:40:22,092 INFO  L112        PluginConnector]: ------------------------Boogie Procedure Inliner----------------------------
[2024-11-05 23:40:22,092 INFO  L270        PluginConnector]: Initializing Boogie Procedure Inliner...
[2024-11-05 23:40:22,092 INFO  L274        PluginConnector]: Boogie Procedure Inliner initialized
[2024-11-05 23:40:22,097 INFO  L184        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 11:40:22" (1/1) ...
[2024-11-05 23:40:22,105 INFO  L184        PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 11:40:22" (1/1) ...
[2024-11-05 23:40:22,120 INFO  L138                Inliner]: procedures = 27, calls = 22, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 86
[2024-11-05 23:40:22,121 INFO  L131        PluginConnector]: ------------------------ END Boogie Procedure Inliner----------------------------
[2024-11-05 23:40:22,121 INFO  L112        PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2024-11-05 23:40:22,121 INFO  L270        PluginConnector]: Initializing Boogie Preprocessor...
[2024-11-05 23:40:22,121 INFO  L274        PluginConnector]: Boogie Preprocessor initialized
[2024-11-05 23:40:22,136 INFO  L184        PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 11:40:22" (1/1) ...
[2024-11-05 23:40:22,136 INFO  L184        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 11:40:22" (1/1) ...
[2024-11-05 23:40:22,143 INFO  L184        PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 11:40:22" (1/1) ...
[2024-11-05 23:40:22,153 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].
[2024-11-05 23:40:22,154 INFO  L184        PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 11:40:22" (1/1) ...
[2024-11-05 23:40:22,154 INFO  L184        PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 11:40:22" (1/1) ...
[2024-11-05 23:40:22,160 INFO  L184        PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 11:40:22" (1/1) ...
[2024-11-05 23:40:22,163 INFO  L184        PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 11:40:22" (1/1) ...
[2024-11-05 23:40:22,165 INFO  L184        PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 11:40:22" (1/1) ...
[2024-11-05 23:40:22,166 INFO  L184        PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 11:40:22" (1/1) ...
[2024-11-05 23:40:22,168 INFO  L131        PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2024-11-05 23:40:22,169 INFO  L112        PluginConnector]: ------------------------RCFGBuilder----------------------------
[2024-11-05 23:40:22,169 INFO  L270        PluginConnector]: Initializing RCFGBuilder...
[2024-11-05 23:40:22,169 INFO  L274        PluginConnector]: RCFGBuilder initialized
[2024-11-05 23:40:22,170 INFO  L184        PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 11:40:22" (1/1) ...
[2024-11-05 23:40:22,182 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2024-11-05 23:40:22,190 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2024-11-05 23:40:22,202 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)
[2024-11-05 23:40:22,204 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
[2024-11-05 23:40:22,228 INFO  L130     BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit
[2024-11-05 23:40:22,229 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0
[2024-11-05 23:40:22,229 INFO  L130     BoogieDeclarations]: Found specification of procedure assume_abort_if_not
[2024-11-05 23:40:22,229 INFO  L138     BoogieDeclarations]: Found implementation of procedure assume_abort_if_not
[2024-11-05 23:40:22,229 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2024-11-05 23:40:22,230 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2024-11-05 23:40:22,300 INFO  L238             CfgBuilder]: Building ICFG
[2024-11-05 23:40:22,302 INFO  L264             CfgBuilder]: Building CFG for each procedure with an implementation
[2024-11-05 23:40:23,290 INFO  L?                        ?]: Removed 10 outVars from TransFormulas that were not future-live.
[2024-11-05 23:40:23,291 INFO  L287             CfgBuilder]: Performing block encoding
[2024-11-05 23:40:23,300 INFO  L311             CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2024-11-05 23:40:23,301 INFO  L316             CfgBuilder]: Removed 1 assume(true) statements.
[2024-11-05 23:40:23,301 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.11 11:40:23 BoogieIcfgContainer
[2024-11-05 23:40:23,301 INFO  L131        PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2024-11-05 23:40:23,303 INFO  L112        PluginConnector]: ------------------------TraceAbstraction----------------------------
[2024-11-05 23:40:23,303 INFO  L270        PluginConnector]: Initializing TraceAbstraction...
[2024-11-05 23:40:23,305 INFO  L274        PluginConnector]: TraceAbstraction initialized
[2024-11-05 23:40:23,306 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 05.11 11:40:21" (1/3) ...
[2024-11-05 23:40:23,306 INFO  L204        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5728c877 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 05.11 11:40:23, skipping insertion in model container
[2024-11-05 23:40:23,306 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 11:40:22" (2/3) ...
[2024-11-05 23:40:23,306 INFO  L204        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5728c877 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 05.11 11:40:23, skipping insertion in model container
[2024-11-05 23:40:23,307 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.11 11:40:23" (3/3) ...
[2024-11-05 23:40:23,308 INFO  L112   eAbstractionObserver]: Analyzing ICFG hardness_operatoramount_amount25_file-73.i
[2024-11-05 23:40:23,320 INFO  L214   ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2024-11-05 23:40:23,320 INFO  L154   ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations.
[2024-11-05 23:40:23,361 INFO  L332      AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ========
[2024-11-05 23:40:23,366 INFO  L333      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, 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;@12a93eb5, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms]
[2024-11-05 23:40:23,366 INFO  L334      AbstractCegarLoop]: Starting to check reachability of 1 error locations.
[2024-11-05 23:40:23,370 INFO  L276                IsEmpty]: Start isEmpty. Operand  has 39 states, 27 states have (on average 1.3703703703703705) internal successors, (37), 28 states have internal predecessors, (37), 9 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9)
[2024-11-05 23:40:23,376 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 64
[2024-11-05 23:40:23,376 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-05 23:40:23,377 INFO  L215           NwaCegarLoop]: trace histogram [9, 9, 9, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-05 23:40:23,377 INFO  L396      AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-05 23:40:23,381 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-05 23:40:23,381 INFO  L85        PathProgramCache]: Analyzing trace with hash 715450892, now seen corresponding path program 1 times
[2024-11-05 23:40:23,390 INFO  L118   FreeRefinementEngine]: Executing refinement strategy WOLF
[2024-11-05 23:40:23,390 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2061052119]
[2024-11-05 23:40:23,391 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-05 23:40:23,391 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
[2024-11-05 23:40:23,391 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat
[2024-11-05 23:40:23,399 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)
[2024-11-05 23:40:23,400 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
[2024-11-05 23:40:23,613 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-05 23:40:23,622 INFO  L255         TraceCheckSpWp]: Trace formula consists of 112 conjuncts, 1 conjuncts are in the unsatisfiable core
[2024-11-05 23:40:23,630 INFO  L278         TraceCheckSpWp]: Computing forward predicates...
[2024-11-05 23:40:23,663 INFO  L134       CoverageAnalysis]: Checked inductivity of 144 backedges. 80 proven. 0 refuted. 0 times theorem prover too weak. 64 trivial. 0 not checked.
[2024-11-05 23:40:23,663 INFO  L307         TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2024-11-05 23:40:23,664 INFO  L136   FreeRefinementEngine]: Strategy WOLF found an infeasible trace
[2024-11-05 23:40:23,664 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2061052119]
[2024-11-05 23:40:23,665 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleMathsat [2061052119] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-05 23:40:23,665 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-05 23:40:23,665 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2024-11-05 23:40:23,666 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [103814047]
[2024-11-05 23:40:23,667 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-05 23:40:23,670 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 2 states
[2024-11-05 23:40:23,670 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF
[2024-11-05 23:40:23,686 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants.
[2024-11-05 23:40:23,686 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2
[2024-11-05 23:40:23,688 INFO  L87              Difference]: Start difference. First operand  has 39 states, 27 states have (on average 1.3703703703703705) internal successors, (37), 28 states have internal predecessors, (37), 9 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) Second operand  has 2 states, 2 states have (on average 12.5) internal successors, (25), 2 states have internal predecessors, (25), 2 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9)
[2024-11-05 23:40:23,703 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-05 23:40:23,703 INFO  L93              Difference]: Finished difference Result 71 states and 113 transitions.
[2024-11-05 23:40:23,705 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2024-11-05 23:40:23,706 INFO  L78                 Accepts]: Start accepts. Automaton has  has 2 states, 2 states have (on average 12.5) internal successors, (25), 2 states have internal predecessors, (25), 2 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) Word has length 63
[2024-11-05 23:40:23,706 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-05 23:40:23,711 INFO  L225             Difference]: With dead ends: 71
[2024-11-05 23:40:23,711 INFO  L226             Difference]: Without dead ends: 35
[2024-11-05 23:40:23,713 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 62 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2
[2024-11-05 23:40:23,716 INFO  L432           NwaCegarLoop]: 48 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 48 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2024-11-05 23:40:23,716 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 48 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2024-11-05 23:40:23,728 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 35 states.
[2024-11-05 23:40:23,739 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 35 to 35.
[2024-11-05 23:40:23,740 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 35 states, 24 states have (on average 1.25) internal successors, (30), 24 states have internal predecessors, (30), 9 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9)
[2024-11-05 23:40:23,741 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 35 states and 48 transitions.
[2024-11-05 23:40:23,743 INFO  L78                 Accepts]: Start accepts. Automaton has 35 states and 48 transitions. Word has length 63
[2024-11-05 23:40:23,743 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-05 23:40:23,743 INFO  L471      AbstractCegarLoop]: Abstraction has 35 states and 48 transitions.
[2024-11-05 23:40:23,743 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 2 states, 2 states have (on average 12.5) internal successors, (25), 2 states have internal predecessors, (25), 2 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9)
[2024-11-05 23:40:23,743 INFO  L276                IsEmpty]: Start isEmpty. Operand 35 states and 48 transitions.
[2024-11-05 23:40:23,745 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 64
[2024-11-05 23:40:23,745 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-05 23:40:23,745 INFO  L215           NwaCegarLoop]: trace histogram [9, 9, 9, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-05 23:40:23,757 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
[2024-11-05 23:40:23,946 WARN  L453      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
[2024-11-05 23:40:23,946 INFO  L396      AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-05 23:40:23,947 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-05 23:40:23,947 INFO  L85        PathProgramCache]: Analyzing trace with hash 476516110, now seen corresponding path program 1 times
[2024-11-05 23:40:23,948 INFO  L118   FreeRefinementEngine]: Executing refinement strategy WOLF
[2024-11-05 23:40:23,948 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2101510552]
[2024-11-05 23:40:23,948 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-05 23:40:23,948 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
[2024-11-05 23:40:23,949 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat
[2024-11-05 23:40:23,953 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)
[2024-11-05 23:40:23,959 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
[2024-11-05 23:40:24,129 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-05 23:40:24,135 INFO  L255         TraceCheckSpWp]: Trace formula consists of 112 conjuncts, 6 conjuncts are in the unsatisfiable core
[2024-11-05 23:40:24,138 INFO  L278         TraceCheckSpWp]: Computing forward predicates...
[2024-11-05 23:40:24,583 INFO  L134       CoverageAnalysis]: Checked inductivity of 144 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 144 trivial. 0 not checked.
[2024-11-05 23:40:24,583 INFO  L307         TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2024-11-05 23:40:24,583 INFO  L136   FreeRefinementEngine]: Strategy WOLF found an infeasible trace
[2024-11-05 23:40:24,584 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2101510552]
[2024-11-05 23:40:24,584 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleMathsat [2101510552] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-05 23:40:24,584 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-05 23:40:24,584 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2024-11-05 23:40:24,585 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [442710164]
[2024-11-05 23:40:24,585 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-05 23:40:24,586 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 5 states
[2024-11-05 23:40:24,586 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF
[2024-11-05 23:40:24,587 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2024-11-05 23:40:24,587 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20
[2024-11-05 23:40:24,587 INFO  L87              Difference]: Start difference. First operand 35 states and 48 transitions. Second operand  has 5 states, 5 states have (on average 4.2) internal successors, (21), 4 states have internal predecessors, (21), 1 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 1 states have call predecessors, (9), 1 states have call successors, (9)
[2024-11-05 23:40:26,136 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-05 23:40:26,137 INFO  L93              Difference]: Finished difference Result 102 states and 142 transitions.
[2024-11-05 23:40:26,149 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. 
[2024-11-05 23:40:26,150 INFO  L78                 Accepts]: Start accepts. Automaton has  has 5 states, 5 states have (on average 4.2) internal successors, (21), 4 states have internal predecessors, (21), 1 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 1 states have call predecessors, (9), 1 states have call successors, (9) Word has length 63
[2024-11-05 23:40:26,150 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-05 23:40:26,151 INFO  L225             Difference]: With dead ends: 102
[2024-11-05 23:40:26,151 INFO  L226             Difference]: Without dead ends: 70
[2024-11-05 23:40:26,152 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 59 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42
[2024-11-05 23:40:26,153 INFO  L432           NwaCegarLoop]: 47 mSDtfsCounter, 36 mSDsluCounter, 107 mSDsCounter, 0 mSdLazyCounter, 39 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 36 SdHoareTripleChecker+Valid, 154 SdHoareTripleChecker+Invalid, 58 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 39 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time
[2024-11-05 23:40:26,153 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [36 Valid, 154 Invalid, 58 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 39 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time]
[2024-11-05 23:40:26,154 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 70 states.
[2024-11-05 23:40:26,164 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 70 to 56.
[2024-11-05 23:40:26,165 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 56 states, 35 states have (on average 1.1714285714285715) internal successors, (41), 35 states have internal predecessors, (41), 18 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (18), 18 states have call predecessors, (18), 18 states have call successors, (18)
[2024-11-05 23:40:26,166 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 56 states to 56 states and 77 transitions.
[2024-11-05 23:40:26,166 INFO  L78                 Accepts]: Start accepts. Automaton has 56 states and 77 transitions. Word has length 63
[2024-11-05 23:40:26,166 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-05 23:40:26,167 INFO  L471      AbstractCegarLoop]: Abstraction has 56 states and 77 transitions.
[2024-11-05 23:40:26,167 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 5 states, 5 states have (on average 4.2) internal successors, (21), 4 states have internal predecessors, (21), 1 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 1 states have call predecessors, (9), 1 states have call successors, (9)
[2024-11-05 23:40:26,167 INFO  L276                IsEmpty]: Start isEmpty. Operand 56 states and 77 transitions.
[2024-11-05 23:40:26,168 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 65
[2024-11-05 23:40:26,168 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-05 23:40:26,168 INFO  L215           NwaCegarLoop]: trace histogram [9, 9, 9, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-05 23:40:26,179 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
[2024-11-05 23:40:26,372 WARN  L453      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
[2024-11-05 23:40:26,373 INFO  L396      AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-05 23:40:26,374 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-05 23:40:26,374 INFO  L85        PathProgramCache]: Analyzing trace with hash -627591792, now seen corresponding path program 1 times
[2024-11-05 23:40:26,374 INFO  L118   FreeRefinementEngine]: Executing refinement strategy WOLF
[2024-11-05 23:40:26,374 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [793398475]
[2024-11-05 23:40:26,374 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-05 23:40:26,374 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
[2024-11-05 23:40:26,375 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat
[2024-11-05 23:40:26,377 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)
[2024-11-05 23:40:26,378 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
[2024-11-05 23:40:26,530 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-05 23:40:26,536 INFO  L255         TraceCheckSpWp]: Trace formula consists of 114 conjuncts, 2 conjuncts are in the unsatisfiable core
[2024-11-05 23:40:26,538 INFO  L278         TraceCheckSpWp]: Computing forward predicates...
[2024-11-05 23:40:26,549 INFO  L134       CoverageAnalysis]: Checked inductivity of 144 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 144 trivial. 0 not checked.
[2024-11-05 23:40:26,549 INFO  L307         TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2024-11-05 23:40:26,549 INFO  L136   FreeRefinementEngine]: Strategy WOLF found an infeasible trace
[2024-11-05 23:40:26,549 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [793398475]
[2024-11-05 23:40:26,549 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleMathsat [793398475] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-05 23:40:26,550 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-05 23:40:26,550 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2024-11-05 23:40:26,552 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1534970423]
[2024-11-05 23:40:26,552 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-05 23:40:26,553 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2024-11-05 23:40:26,553 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF
[2024-11-05 23:40:26,553 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2024-11-05 23:40:26,553 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-11-05 23:40:26,554 INFO  L87              Difference]: Start difference. First operand 56 states and 77 transitions. Second operand  has 3 states, 3 states have (on average 7.333333333333333) internal successors, (22), 3 states have internal predecessors, (22), 1 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 1 states have call predecessors, (9), 1 states have call successors, (9)
[2024-11-05 23:40:27,080 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-05 23:40:27,080 INFO  L93              Difference]: Finished difference Result 99 states and 135 transitions.
[2024-11-05 23:40:27,081 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2024-11-05 23:40:27,081 INFO  L78                 Accepts]: Start accepts. Automaton has  has 3 states, 3 states have (on average 7.333333333333333) internal successors, (22), 3 states have internal predecessors, (22), 1 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 1 states have call predecessors, (9), 1 states have call successors, (9) Word has length 64
[2024-11-05 23:40:27,081 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-05 23:40:27,082 INFO  L225             Difference]: With dead ends: 99
[2024-11-05 23:40:27,082 INFO  L226             Difference]: Without dead ends: 67
[2024-11-05 23:40:27,082 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 62 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-11-05 23:40:27,083 INFO  L432           NwaCegarLoop]: 57 mSDtfsCounter, 13 mSDsluCounter, 37 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13 SdHoareTripleChecker+Valid, 94 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time
[2024-11-05 23:40:27,083 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [13 Valid, 94 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time]
[2024-11-05 23:40:27,084 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 67 states.
[2024-11-05 23:40:27,090 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 67 to 57.
[2024-11-05 23:40:27,091 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 57 states, 36 states have (on average 1.1666666666666667) internal successors, (42), 36 states have internal predecessors, (42), 18 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (18), 18 states have call predecessors, (18), 18 states have call successors, (18)
[2024-11-05 23:40:27,091 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 57 states to 57 states and 78 transitions.
[2024-11-05 23:40:27,092 INFO  L78                 Accepts]: Start accepts. Automaton has 57 states and 78 transitions. Word has length 64
[2024-11-05 23:40:27,092 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-05 23:40:27,092 INFO  L471      AbstractCegarLoop]: Abstraction has 57 states and 78 transitions.
[2024-11-05 23:40:27,092 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 7.333333333333333) internal successors, (22), 3 states have internal predecessors, (22), 1 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 1 states have call predecessors, (9), 1 states have call successors, (9)
[2024-11-05 23:40:27,092 INFO  L276                IsEmpty]: Start isEmpty. Operand 57 states and 78 transitions.
[2024-11-05 23:40:27,093 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 65
[2024-11-05 23:40:27,093 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-05 23:40:27,093 INFO  L215           NwaCegarLoop]: trace histogram [9, 9, 9, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-05 23:40:27,101 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
[2024-11-05 23:40:27,297 WARN  L453      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
[2024-11-05 23:40:27,298 INFO  L396      AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-05 23:40:27,298 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-05 23:40:27,298 INFO  L85        PathProgramCache]: Analyzing trace with hash -1436938418, now seen corresponding path program 1 times
[2024-11-05 23:40:27,299 INFO  L118   FreeRefinementEngine]: Executing refinement strategy WOLF
[2024-11-05 23:40:27,299 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1869387453]
[2024-11-05 23:40:27,299 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-05 23:40:27,299 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
[2024-11-05 23:40:27,299 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat
[2024-11-05 23:40:27,302 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)
[2024-11-05 23:40:27,303 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
[2024-11-05 23:40:27,482 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-05 23:40:27,488 INFO  L255         TraceCheckSpWp]: Trace formula consists of 114 conjuncts, 15 conjuncts are in the unsatisfiable core
[2024-11-05 23:40:27,492 INFO  L278         TraceCheckSpWp]: Computing forward predicates...