/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 FOX -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Bitvector.epf -i ../../../trunk/examples/svcomp/hardness-nfm22/hardness_operatoramount_amount250_file-98.i


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


This is Ultimate 0.2.5-dev-17387ad-m
[2024-11-06 08:31:17,244 INFO  L188        SettingsManager]: Resetting all preferences to default values...
[2024-11-06 08:31:17,320 INFO  L114        SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Bitvector.epf
[2024-11-06 08:31:17,326 WARN  L101        SettingsManager]: Preference file contains the following unknown settings:
[2024-11-06 08:31:17,327 WARN  L103        SettingsManager]:   * de.uni_freiburg.informatik.ultimate.core.Log level for class
[2024-11-06 08:31:17,357 INFO  L130        SettingsManager]: Preferences different from defaults after loading the file:
[2024-11-06 08:31:17,358 INFO  L151        SettingsManager]: Preferences of UltimateCore differ from their defaults:
[2024-11-06 08:31:17,358 INFO  L153        SettingsManager]:  * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR;
[2024-11-06 08:31:17,359 INFO  L151        SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults:
[2024-11-06 08:31:17,360 INFO  L153        SettingsManager]:  * Use memory slicer=true
[2024-11-06 08:31:17,360 INFO  L151        SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults:
[2024-11-06 08:31:17,361 INFO  L153        SettingsManager]:  * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS
[2024-11-06 08:31:17,362 INFO  L151        SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2024-11-06 08:31:17,363 INFO  L153        SettingsManager]:  * Create parallel compositions if possible=false
[2024-11-06 08:31:17,363 INFO  L153        SettingsManager]:  * Use SBE=true
[2024-11-06 08:31:17,363 INFO  L151        SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2024-11-06 08:31:17,363 INFO  L153        SettingsManager]:  * Pointer base address is valid at dereference=IGNORE
[2024-11-06 08:31:17,364 INFO  L153        SettingsManager]:  * sizeof long=4
[2024-11-06 08:31:17,364 INFO  L153        SettingsManager]:  * sizeof POINTER=4
[2024-11-06 08:31:17,364 INFO  L153        SettingsManager]:  * Check division by zero=IGNORE
[2024-11-06 08:31:17,364 INFO  L153        SettingsManager]:  * Pointer to allocated memory at dereference=IGNORE
[2024-11-06 08:31:17,369 INFO  L153        SettingsManager]:  * If two pointers are subtracted or compared they have the same base address=IGNORE
[2024-11-06 08:31:17,369 INFO  L153        SettingsManager]:  * Check array bounds for arrays that are off heap=IGNORE
[2024-11-06 08:31:17,369 INFO  L153        SettingsManager]:  * Adapt memory model on pointer casts if necessary=true
[2024-11-06 08:31:17,370 INFO  L153        SettingsManager]:  * Use bitvectors instead of ints=true
[2024-11-06 08:31:17,370 INFO  L153        SettingsManager]:  * Allow undefined functions=false
[2024-11-06 08:31:17,370 INFO  L153        SettingsManager]:  * Memory model=HoenickeLindenmann_4ByteResolution
[2024-11-06 08:31:17,370 INFO  L153        SettingsManager]:  * sizeof long double=12
[2024-11-06 08:31:17,370 INFO  L153        SettingsManager]:  * Check if freed pointer was valid=false
[2024-11-06 08:31:17,371 INFO  L153        SettingsManager]:  * Use constant arrays=true
[2024-11-06 08:31:17,371 INFO  L151        SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2024-11-06 08:31:17,371 INFO  L153        SettingsManager]:  * Size of a code block=SequenceOfStatements
[2024-11-06 08:31:17,371 INFO  L153        SettingsManager]:  * Only consider context switches at boundaries of atomic blocks=true
[2024-11-06 08:31:17,372 INFO  L153        SettingsManager]:  * SMT solver=External_DefaultMode
[2024-11-06 08:31:17,372 INFO  L153        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2024-11-06 08:31:17,372 INFO  L151        SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2024-11-06 08:31:17,372 INFO  L153        SettingsManager]:  * Compute Interpolants along a Counterexample=FPandBP
[2024-11-06 08:31:17,372 INFO  L153        SettingsManager]:  * Positions where we compute the Hoare Annotation=LoopHeads
[2024-11-06 08:31:17,373 INFO  L153        SettingsManager]:  * Trace refinement strategy=WOLF
[2024-11-06 08:31:17,373 INFO  L153        SettingsManager]:  * Command for external solver=cvc4 --incremental --print-success --lang smt
[2024-11-06 08:31:17,373 INFO  L153        SettingsManager]:  * Apply one-shot large block encoding in concurrent analysis=false
[2024-11-06 08:31:17,374 INFO  L153        SettingsManager]:  * Automaton type used in concurrency analysis=PETRI_NET
[2024-11-06 08:31:17,374 INFO  L153        SettingsManager]:  * Order on configurations for Petri net unfoldings=DBO
[2024-11-06 08:31:17,374 INFO  L153        SettingsManager]:  * SMT solver=External_ModelsAndUnsatCoreMode
[2024-11-06 08:31:17,374 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$1
WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations
WARNING: All illegal access operations will be denied in a future release
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Allow undefined functions -> true
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FOX
[2024-11-06 08:31:17,605 INFO  L75    nceAwareModelManager]: Repository-Root is: /tmp
[2024-11-06 08:31:17,630 INFO  L261   ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2024-11-06 08:31:17,632 INFO  L217   ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2024-11-06 08:31:17,633 INFO  L270        PluginConnector]: Initializing CDTParser...
[2024-11-06 08:31:17,634 INFO  L274        PluginConnector]: CDTParser initialized
[2024-11-06 08:31:17,635 INFO  L431   ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/hardness-nfm22/hardness_operatoramount_amount250_file-98.i
[2024-11-06 08:31:19,120 INFO  L533              CDTParser]: Created temporary CDT project at NULL
[2024-11-06 08:31:19,346 INFO  L384              CDTParser]: Found 1 translation units.
[2024-11-06 08:31:19,347 INFO  L180              CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/hardness-nfm22/hardness_operatoramount_amount250_file-98.i
[2024-11-06 08:31:19,363 INFO  L427              CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/970019750/958d8279f1f74f6b8cd43470e44a06de/FLAGd63ac70c3
[2024-11-06 08:31:19,377 INFO  L435              CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/970019750/958d8279f1f74f6b8cd43470e44a06de
[2024-11-06 08:31:19,380 INFO  L299   ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2024-11-06 08:31:19,383 INFO  L133        ToolchainWalker]: Walking toolchain with 5 elements.
[2024-11-06 08:31:19,384 INFO  L112        PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2024-11-06 08:31:19,385 INFO  L270        PluginConnector]: Initializing CACSL2BoogieTranslator...
[2024-11-06 08:31:19,390 INFO  L274        PluginConnector]: CACSL2BoogieTranslator initialized
[2024-11-06 08:31:19,391 INFO  L184        PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 08:31:19" (1/1) ...
[2024-11-06 08:31:19,392 INFO  L204        PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@596c20d8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:31:19, skipping insertion in model container
[2024-11-06 08:31:19,392 INFO  L184        PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 08:31:19" (1/1) ...
[2024-11-06 08:31:19,438 INFO  L175         MainTranslator]: Built tables and reachable declarations
[2024-11-06 08:31:19,619 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_amount250_file-98.i[916,929]
[2024-11-06 08:31:19,781 INFO  L210          PostProcessor]: Analyzing one entry point: main
[2024-11-06 08:31:19,798 INFO  L200         MainTranslator]: Completed pre-run
[2024-11-06 08:31:19,813 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_amount250_file-98.i[916,929]
[2024-11-06 08:31:19,901 INFO  L210          PostProcessor]: Analyzing one entry point: main
[2024-11-06 08:31:19,934 INFO  L204         MainTranslator]: Completed translation
[2024-11-06 08:31:19,935 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:31:19 WrapperNode
[2024-11-06 08:31:19,935 INFO  L131        PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2024-11-06 08:31:19,936 INFO  L112        PluginConnector]: ------------------------Boogie Procedure Inliner----------------------------
[2024-11-06 08:31:19,936 INFO  L270        PluginConnector]: Initializing Boogie Procedure Inliner...
[2024-11-06 08:31:19,936 INFO  L274        PluginConnector]: Boogie Procedure Inliner initialized
[2024-11-06 08:31:19,942 INFO  L184        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:31:19" (1/1) ...
[2024-11-06 08:31:19,960 INFO  L184        PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:31:19" (1/1) ...
[2024-11-06 08:31:19,999 INFO  L138                Inliner]: procedures = 27, calls = 56, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 330
[2024-11-06 08:31:20,000 INFO  L131        PluginConnector]: ------------------------ END Boogie Procedure Inliner----------------------------
[2024-11-06 08:31:20,001 INFO  L112        PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2024-11-06 08:31:20,001 INFO  L270        PluginConnector]: Initializing Boogie Preprocessor...
[2024-11-06 08:31:20,001 INFO  L274        PluginConnector]: Boogie Preprocessor initialized
[2024-11-06 08:31:20,012 INFO  L184        PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:31:19" (1/1) ...
[2024-11-06 08:31:20,012 INFO  L184        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:31:19" (1/1) ...
[2024-11-06 08:31:20,024 INFO  L184        PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:31:19" (1/1) ...
[2024-11-06 08:31:20,054 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].
[2024-11-06 08:31:20,054 INFO  L184        PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:31:19" (1/1) ...
[2024-11-06 08:31:20,054 INFO  L184        PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:31:19" (1/1) ...
[2024-11-06 08:31:20,081 INFO  L184        PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:31:19" (1/1) ...
[2024-11-06 08:31:20,091 INFO  L184        PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:31:19" (1/1) ...
[2024-11-06 08:31:20,104 INFO  L184        PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:31:19" (1/1) ...
[2024-11-06 08:31:20,107 INFO  L184        PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:31:19" (1/1) ...
[2024-11-06 08:31:20,119 INFO  L131        PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2024-11-06 08:31:20,120 INFO  L112        PluginConnector]: ------------------------RCFGBuilder----------------------------
[2024-11-06 08:31:20,120 INFO  L270        PluginConnector]: Initializing RCFGBuilder...
[2024-11-06 08:31:20,120 INFO  L274        PluginConnector]: RCFGBuilder initialized
[2024-11-06 08:31:20,121 INFO  L184        PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:31:19" (1/1) ...
[2024-11-06 08:31:20,133 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2024-11-06 08:31:20,145 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2024-11-06 08:31:20,163 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)
[2024-11-06 08:31:20,167 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
[2024-11-06 08:31:20,195 INFO  L130     BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit
[2024-11-06 08:31:20,196 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0
[2024-11-06 08:31:20,196 INFO  L130     BoogieDeclarations]: Found specification of procedure assume_abort_if_not
[2024-11-06 08:31:20,196 INFO  L138     BoogieDeclarations]: Found implementation of procedure assume_abort_if_not
[2024-11-06 08:31:20,197 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2024-11-06 08:31:20,197 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2024-11-06 08:31:20,333 INFO  L238             CfgBuilder]: Building ICFG
[2024-11-06 08:31:20,336 INFO  L264             CfgBuilder]: Building CFG for each procedure with an implementation
[2024-11-06 08:31:28,683 INFO  L?                        ?]: Removed 52 outVars from TransFormulas that were not future-live.
[2024-11-06 08:31:28,683 INFO  L287             CfgBuilder]: Performing block encoding
[2024-11-06 08:31:28,702 INFO  L311             CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2024-11-06 08:31:28,704 INFO  L316             CfgBuilder]: Removed 1 assume(true) statements.
[2024-11-06 08:31:28,704 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 08:31:28 BoogieIcfgContainer
[2024-11-06 08:31:28,704 INFO  L131        PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2024-11-06 08:31:28,706 INFO  L112        PluginConnector]: ------------------------TraceAbstraction----------------------------
[2024-11-06 08:31:28,706 INFO  L270        PluginConnector]: Initializing TraceAbstraction...
[2024-11-06 08:31:28,710 INFO  L274        PluginConnector]: TraceAbstraction initialized
[2024-11-06 08:31:28,711 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.11 08:31:19" (1/3) ...
[2024-11-06 08:31:28,712 INFO  L204        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3e4a90db and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 08:31:28, skipping insertion in model container
[2024-11-06 08:31:28,712 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:31:19" (2/3) ...
[2024-11-06 08:31:28,712 INFO  L204        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3e4a90db and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 08:31:28, skipping insertion in model container
[2024-11-06 08:31:28,712 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 08:31:28" (3/3) ...
[2024-11-06 08:31:28,714 INFO  L112   eAbstractionObserver]: Analyzing ICFG hardness_operatoramount_amount250_file-98.i
[2024-11-06 08:31:28,731 INFO  L214   ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2024-11-06 08:31:28,732 INFO  L154   ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations.
[2024-11-06 08:31:28,812 INFO  L332      AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ========
[2024-11-06 08:31:28,820 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;@48ebab0b, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms]
[2024-11-06 08:31:28,821 INFO  L334      AbstractCegarLoop]: Starting to check reachability of 1 error locations.
[2024-11-06 08:31:28,828 INFO  L276                IsEmpty]: Start isEmpty. Operand  has 144 states, 98 states have (on average 1.530612244897959) internal successors, (150), 99 states have internal predecessors, (150), 43 states have call successors, (43), 1 states have call predecessors, (43), 1 states have return successors, (43), 43 states have call predecessors, (43), 43 states have call successors, (43)
[2024-11-06 08:31:28,851 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 282
[2024-11-06 08:31:28,852 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-06 08:31:28,853 INFO  L215           NwaCegarLoop]: trace histogram [43, 43, 43, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-06 08:31:28,855 INFO  L396      AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-06 08:31:28,861 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-06 08:31:28,861 INFO  L85        PathProgramCache]: Analyzing trace with hash 36657279, now seen corresponding path program 1 times
[2024-11-06 08:31:28,878 INFO  L118   FreeRefinementEngine]: Executing refinement strategy FOX
[2024-11-06 08:31:28,879 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1702409505]
[2024-11-06 08:31:28,879 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-06 08:31:28,880 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
[2024-11-06 08:31:28,880 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat
[2024-11-06 08:31:28,883 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)
[2024-11-06 08:31:28,884 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
[2024-11-06 08:31:29,631 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-06 08:31:29,680 INFO  L255         TraceCheckSpWp]: Trace formula consists of 473 conjuncts, 1 conjuncts are in the unsatisfiable core
[2024-11-06 08:31:29,702 INFO  L278         TraceCheckSpWp]: Computing forward predicates...
[2024-11-06 08:31:29,778 INFO  L134       CoverageAnalysis]: Checked inductivity of 3612 backedges. 1524 proven. 0 refuted. 0 times theorem prover too weak. 2088 trivial. 0 not checked.
[2024-11-06 08:31:29,779 INFO  L307         TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2024-11-06 08:31:29,780 INFO  L136   FreeRefinementEngine]: Strategy FOX found an infeasible trace
[2024-11-06 08:31:29,780 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1702409505]
[2024-11-06 08:31:29,781 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleMathsat [1702409505] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-06 08:31:29,781 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-06 08:31:29,781 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2024-11-06 08:31:29,787 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [190229016]
[2024-11-06 08:31:29,788 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-06 08:31:29,793 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 2 states
[2024-11-06 08:31:29,793 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX
[2024-11-06 08:31:29,823 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants.
[2024-11-06 08:31:29,824 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2
[2024-11-06 08:31:29,826 INFO  L87              Difference]: Start difference. First operand  has 144 states, 98 states have (on average 1.530612244897959) internal successors, (150), 99 states have internal predecessors, (150), 43 states have call successors, (43), 1 states have call predecessors, (43), 1 states have return successors, (43), 43 states have call predecessors, (43), 43 states have call successors, (43) Second operand  has 2 states, 2 states have (on average 36.5) internal successors, (73), 2 states have internal predecessors, (73), 2 states have call successors, (43), 2 states have call predecessors, (43), 2 states have return successors, (43), 2 states have call predecessors, (43), 2 states have call successors, (43)
[2024-11-06 08:31:29,865 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-06 08:31:29,865 INFO  L93              Difference]: Finished difference Result 281 states and 509 transitions.
[2024-11-06 08:31:29,867 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2024-11-06 08:31:29,868 INFO  L78                 Accepts]: Start accepts. Automaton has  has 2 states, 2 states have (on average 36.5) internal successors, (73), 2 states have internal predecessors, (73), 2 states have call successors, (43), 2 states have call predecessors, (43), 2 states have return successors, (43), 2 states have call predecessors, (43), 2 states have call successors, (43) Word has length 281
[2024-11-06 08:31:29,868 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-06 08:31:29,876 INFO  L225             Difference]: With dead ends: 281
[2024-11-06 08:31:29,877 INFO  L226             Difference]: Without dead ends: 140
[2024-11-06 08:31:29,882 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 280 GetRequests, 280 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2
[2024-11-06 08:31:29,891 INFO  L432           NwaCegarLoop]: 229 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, 229 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
[2024-11-06 08:31:29,893 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 229 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2024-11-06 08:31:29,909 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 140 states.
[2024-11-06 08:31:29,944 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 140 to 140.
[2024-11-06 08:31:29,946 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 140 states, 95 states have (on average 1.5052631578947369) internal successors, (143), 95 states have internal predecessors, (143), 43 states have call successors, (43), 1 states have call predecessors, (43), 1 states have return successors, (43), 43 states have call predecessors, (43), 43 states have call successors, (43)
[2024-11-06 08:31:29,952 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 140 states to 140 states and 229 transitions.
[2024-11-06 08:31:29,959 INFO  L78                 Accepts]: Start accepts. Automaton has 140 states and 229 transitions. Word has length 281
[2024-11-06 08:31:29,960 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-06 08:31:29,960 INFO  L471      AbstractCegarLoop]: Abstraction has 140 states and 229 transitions.
[2024-11-06 08:31:29,960 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 2 states, 2 states have (on average 36.5) internal successors, (73), 2 states have internal predecessors, (73), 2 states have call successors, (43), 2 states have call predecessors, (43), 2 states have return successors, (43), 2 states have call predecessors, (43), 2 states have call successors, (43)
[2024-11-06 08:31:29,961 INFO  L276                IsEmpty]: Start isEmpty. Operand 140 states and 229 transitions.
[2024-11-06 08:31:29,972 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 282
[2024-11-06 08:31:29,972 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-06 08:31:29,973 INFO  L215           NwaCegarLoop]: trace histogram [43, 43, 43, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-06 08:31:30,008 INFO  L540       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0
[2024-11-06 08:31:30,174 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
[2024-11-06 08:31:30,174 INFO  L396      AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-06 08:31:30,175 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-06 08:31:30,176 INFO  L85        PathProgramCache]: Analyzing trace with hash -1717858495, now seen corresponding path program 1 times
[2024-11-06 08:31:30,177 INFO  L118   FreeRefinementEngine]: Executing refinement strategy FOX
[2024-11-06 08:31:30,178 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [848311055]
[2024-11-06 08:31:30,178 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-06 08:31:30,178 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
[2024-11-06 08:31:30,178 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat
[2024-11-06 08:31:30,181 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)
[2024-11-06 08:31:30,182 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
[2024-11-06 08:31:31,122 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-06 08:31:31,170 INFO  L255         TraceCheckSpWp]: Trace formula consists of 473 conjuncts, 7 conjuncts are in the unsatisfiable core
[2024-11-06 08:31:31,193 INFO  L278         TraceCheckSpWp]: Computing forward predicates...
[2024-11-06 08:31:41,616 INFO  L134       CoverageAnalysis]: Checked inductivity of 3612 backedges. 516 proven. 117 refuted. 0 times theorem prover too weak. 2979 trivial. 0 not checked.
[2024-11-06 08:31:41,616 INFO  L311         TraceCheckSpWp]: Computing backward predicates...
[2024-11-06 08:31:44,753 INFO  L136   FreeRefinementEngine]: Strategy FOX found an infeasible trace
[2024-11-06 08:31:44,753 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [848311055]
[2024-11-06 08:31:44,753 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleMathsat [848311055] provided 0 perfect and 1 imperfect interpolant sequences
[2024-11-06 08:31:44,754 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [208901001]
[2024-11-06 08:31:44,754 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-06 08:31:44,754 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-06 08:31:44,754 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2024-11-06 08:31:44,774 INFO  L229       MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2024-11-06 08:31:44,776 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process
[2024-11-06 08:31:45,270 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-06 08:31:45,337 INFO  L255         TraceCheckSpWp]: Trace formula consists of 473 conjuncts, 4 conjuncts are in the unsatisfiable core
[2024-11-06 08:31:45,345 INFO  L278         TraceCheckSpWp]: Computing forward predicates...
[2024-11-06 08:31:48,495 INFO  L134       CoverageAnalysis]: Checked inductivity of 3612 backedges. 1848 proven. 63 refuted. 0 times theorem prover too weak. 1701 trivial. 0 not checked.
[2024-11-06 08:31:48,496 INFO  L311         TraceCheckSpWp]: Computing backward predicates...
[2024-11-06 08:31:49,308 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleZ3 [208901001] provided 0 perfect and 1 imperfect interpolant sequences
[2024-11-06 08:31:49,308 INFO  L185   FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences.
[2024-11-06 08:31:49,308 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 5] total 11
[2024-11-06 08:31:49,309 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1026892349]
[2024-11-06 08:31:49,309 INFO  L85    oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton
[2024-11-06 08:31:49,311 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 11 states
[2024-11-06 08:31:49,311 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX
[2024-11-06 08:31:49,313 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants.
[2024-11-06 08:31:49,313 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=171, Unknown=0, NotChecked=0, Total=210
[2024-11-06 08:31:49,313 INFO  L87              Difference]: Start difference. First operand 140 states and 229 transitions. Second operand  has 11 states, 11 states have (on average 12.727272727272727) internal successors, (140), 11 states have internal predecessors, (140), 4 states have call successors, (86), 4 states have call predecessors, (86), 6 states have return successors, (86), 4 states have call predecessors, (86), 4 states have call successors, (86)
[2024-11-06 08:32:00,009 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.20s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers []
[2024-11-06 08:32:04,013 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers []
[2024-11-06 08:32:08,018 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers []
[2024-11-06 08:32:12,032 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers []
[2024-11-06 08:32:15,385 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.35s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers []
[2024-11-06 08:32:15,531 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-06 08:32:15,531 INFO  L93              Difference]: Finished difference Result 287 states and 463 transitions.
[2024-11-06 08:32:15,605 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. 
[2024-11-06 08:32:15,606 INFO  L78                 Accepts]: Start accepts. Automaton has  has 11 states, 11 states have (on average 12.727272727272727) internal successors, (140), 11 states have internal predecessors, (140), 4 states have call successors, (86), 4 states have call predecessors, (86), 6 states have return successors, (86), 4 states have call predecessors, (86), 4 states have call successors, (86) Word has length 281
[2024-11-06 08:32:15,607 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-06 08:32:15,609 INFO  L225             Difference]: With dead ends: 287
[2024-11-06 08:32:15,609 INFO  L226             Difference]: Without dead ends: 150
[2024-11-06 08:32:15,611 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 868 GetRequests, 844 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 100 ImplicationChecksByTransitivity, 3.1s TimeCoverageRelationStatistics Valid=172, Invalid=478, Unknown=0, NotChecked=0, Total=650
[2024-11-06 08:32:15,612 INFO  L432           NwaCegarLoop]: 157 mSDtfsCounter, 468 mSDsluCounter, 455 mSDsCounter, 0 mSdLazyCounter, 518 mSolverCounterSat, 142 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 24.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 468 SdHoareTripleChecker+Valid, 612 SdHoareTripleChecker+Invalid, 664 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 142 IncrementalHoareTripleChecker+Valid, 518 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 24.6s IncrementalHoareTripleChecker+Time
[2024-11-06 08:32:15,613 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [468 Valid, 612 Invalid, 664 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [142 Valid, 518 Invalid, 4 Unknown, 0 Unchecked, 24.6s Time]
[2024-11-06 08:32:15,614 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 150 states.
[2024-11-06 08:32:15,641 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 150 to 148.
[2024-11-06 08:32:15,642 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 148 states, 101 states have (on average 1.4554455445544554) internal successors, (147), 101 states have internal predecessors, (147), 43 states have call successors, (43), 3 states have call predecessors, (43), 3 states have return successors, (43), 43 states have call predecessors, (43), 43 states have call successors, (43)
[2024-11-06 08:32:15,644 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 148 states to 148 states and 233 transitions.
[2024-11-06 08:32:15,645 INFO  L78                 Accepts]: Start accepts. Automaton has 148 states and 233 transitions. Word has length 281
[2024-11-06 08:32:15,646 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-06 08:32:15,646 INFO  L471      AbstractCegarLoop]: Abstraction has 148 states and 233 transitions.
[2024-11-06 08:32:15,646 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 11 states, 11 states have (on average 12.727272727272727) internal successors, (140), 11 states have internal predecessors, (140), 4 states have call successors, (86), 4 states have call predecessors, (86), 6 states have return successors, (86), 4 states have call predecessors, (86), 4 states have call successors, (86)
[2024-11-06 08:32:15,646 INFO  L276                IsEmpty]: Start isEmpty. Operand 148 states and 233 transitions.
[2024-11-06 08:32:15,652 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 284
[2024-11-06 08:32:15,652 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-06 08:32:15,652 INFO  L215           NwaCegarLoop]: trace histogram [43, 43, 43, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-06 08:32:15,680 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
[2024-11-06 08:32:15,899 INFO  L540       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0
[2024-11-06 08:32:16,053 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=3,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-06 08:32:16,054 INFO  L396      AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-06 08:32:16,054 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-06 08:32:16,055 INFO  L85        PathProgramCache]: Analyzing trace with hash -228559602, now seen corresponding path program 1 times
[2024-11-06 08:32:16,057 INFO  L118   FreeRefinementEngine]: Executing refinement strategy FOX
[2024-11-06 08:32:16,057 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [182856654]
[2024-11-06 08:32:16,057 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-06 08:32:16,057 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
[2024-11-06 08:32:16,058 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat
[2024-11-06 08:32:16,059 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)
[2024-11-06 08:32:16,060 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
[2024-11-06 08:32:16,699 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-06 08:32:16,744 INFO  L255         TraceCheckSpWp]: Trace formula consists of 475 conjuncts, 4 conjuncts are in the unsatisfiable core
[2024-11-06 08:32:16,749 INFO  L278         TraceCheckSpWp]: Computing forward predicates...
[2024-11-06 08:32:19,303 INFO  L134       CoverageAnalysis]: Checked inductivity of 3612 backedges. 1836 proven. 57 refuted. 0 times theorem prover too weak. 1719 trivial. 0 not checked.
[2024-11-06 08:32:19,304 INFO  L311         TraceCheckSpWp]: Computing backward predicates...
[2024-11-06 08:32:22,468 INFO  L134       CoverageAnalysis]: Checked inductivity of 3612 backedges. 69 proven. 57 refuted. 0 times theorem prover too weak. 3486 trivial. 0 not checked.
[2024-11-06 08:32:22,469 INFO  L136   FreeRefinementEngine]: Strategy FOX found an infeasible trace
[2024-11-06 08:32:22,469 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [182856654]
[2024-11-06 08:32:22,469 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleMathsat [182856654] provided 0 perfect and 2 imperfect interpolant sequences
[2024-11-06 08:32:22,469 INFO  L185   FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences.
[2024-11-06 08:32:22,469 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 7
[2024-11-06 08:32:22,470 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1895164962]
[2024-11-06 08:32:22,470 INFO  L85    oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton
[2024-11-06 08:32:22,471 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 7 states
[2024-11-06 08:32:22,471 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX
[2024-11-06 08:32:22,472 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants.
[2024-11-06 08:32:22,472 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42
[2024-11-06 08:32:22,472 INFO  L87              Difference]: Start difference. First operand 148 states and 233 transitions. Second operand  has 7 states, 7 states have (on average 11.428571428571429) internal successors, (80), 7 states have internal predecessors, (80), 2 states have call successors, (62), 2 states have call predecessors, (62), 4 states have return successors, (63), 2 states have call predecessors, (63), 2 states have call successors, (63)
[2024-11-06 08:32:29,416 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.18s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers []
[2024-11-06 08:32:33,424 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers []
[2024-11-06 08:32:37,430 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers []
[2024-11-06 08:32:37,434 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-06 08:32:37,434 INFO  L93              Difference]: Finished difference Result 298 states and 466 transitions.
[2024-11-06 08:32:37,531 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. 
[2024-11-06 08:32:37,532 INFO  L78                 Accepts]: Start accepts. Automaton has  has 7 states, 7 states have (on average 11.428571428571429) internal successors, (80), 7 states have internal predecessors, (80), 2 states have call successors, (62), 2 states have call predecessors, (62), 4 states have return successors, (63), 2 states have call predecessors, (63), 2 states have call successors, (63) Word has length 283
[2024-11-06 08:32:37,533 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-06 08:32:37,536 INFO  L225             Difference]: With dead ends: 298
[2024-11-06 08:32:37,536 INFO  L226             Difference]: Without dead ends: 153
[2024-11-06 08:32:37,537 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 567 GetRequests, 558 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90
[2024-11-06 08:32:37,538 INFO  L432           NwaCegarLoop]: 171 mSDtfsCounter, 240 mSDsluCounter, 255 mSDsCounter, 0 mSdLazyCounter, 236 mSolverCounterSat, 53 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 14.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 263 SdHoareTripleChecker+Valid, 426 SdHoareTripleChecker+Invalid, 292 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 53 IncrementalHoareTripleChecker+Valid, 236 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 14.7s IncrementalHoareTripleChecker+Time
[2024-11-06 08:32:37,539 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [263 Valid, 426 Invalid, 292 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [53 Valid, 236 Invalid, 3 Unknown, 0 Unchecked, 14.7s Time]
[2024-11-06 08:32:37,544 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 153 states.
[2024-11-06 08:32:37,567 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 153 to 151.
[2024-11-06 08:32:37,568 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 151 states, 103 states have (on average 1.4077669902912622) internal successors, (145), 103 states have internal predecessors, (145), 43 states have call successors, (43), 4 states have call predecessors, (43), 4 states have return successors, (43), 43 states have call predecessors, (43), 43 states have call successors, (43)
[2024-11-06 08:32:37,569 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 151 states to 151 states and 231 transitions.
[2024-11-06 08:32:37,571 INFO  L78                 Accepts]: Start accepts. Automaton has 151 states and 231 transitions. Word has length 283
[2024-11-06 08:32:37,572 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-06 08:32:37,572 INFO  L471      AbstractCegarLoop]: Abstraction has 151 states and 231 transitions.
[2024-11-06 08:32:37,572 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 7 states, 7 states have (on average 11.428571428571429) internal successors, (80), 7 states have internal predecessors, (80), 2 states have call successors, (62), 2 states have call predecessors, (62), 4 states have return successors, (63), 2 states have call predecessors, (63), 2 states have call successors, (63)
[2024-11-06 08:32:37,573 INFO  L276                IsEmpty]: Start isEmpty. Operand 151 states and 231 transitions.
[2024-11-06 08:32:37,578 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 284
[2024-11-06 08:32:37,579 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-06 08:32:37,579 INFO  L215           NwaCegarLoop]: trace histogram [43, 43, 43, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-06 08:32:37,621 INFO  L540       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0
[2024-11-06 08:32:37,780 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3
[2024-11-06 08:32:37,780 INFO  L396      AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-06 08:32:37,781 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-06 08:32:37,781 INFO  L85        PathProgramCache]: Analyzing trace with hash -1614762996, now seen corresponding path program 1 times
[2024-11-06 08:32:37,782 INFO  L118   FreeRefinementEngine]: Executing refinement strategy FOX
[2024-11-06 08:32:37,782 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1598651263]
[2024-11-06 08:32:37,782 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-06 08:32:37,782 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
[2024-11-06 08:32:37,782 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat
[2024-11-06 08:32:37,784 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)
[2024-11-06 08:32:37,785 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
[2024-11-06 08:32:38,516 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-06 08:32:38,566 INFO  L255         TraceCheckSpWp]: Trace formula consists of 476 conjuncts, 16 conjuncts are in the unsatisfiable core
[2024-11-06 08:32:38,571 INFO  L278         TraceCheckSpWp]: Computing forward predicates...