/usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Bitvector.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/hardness-nfm22/hardness_fillercode_fillercodestructure_filler-ps-ci_file-40.i


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


This is Ultimate 0.2.4-tmp.fs.bitabs-eval-d9c3e40-m
[2023-12-23 14:14:20,343 INFO  L188        SettingsManager]: Resetting all preferences to default values...
[2023-12-23 14:14:20,382 INFO  L114        SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Bitvector.epf
[2023-12-23 14:14:20,385 WARN  L101        SettingsManager]: Preference file contains the following unknown settings:
[2023-12-23 14:14:20,385 WARN  L103        SettingsManager]:   * de.uni_freiburg.informatik.ultimate.core.Log level for class
[2023-12-23 14:14:20,398 INFO  L130        SettingsManager]: Preferences different from defaults after loading the file:
[2023-12-23 14:14:20,399 INFO  L151        SettingsManager]: Preferences of UltimateCore differ from their defaults:
[2023-12-23 14:14:20,399 INFO  L153        SettingsManager]:  * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR;
[2023-12-23 14:14:20,399 INFO  L151        SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults:
[2023-12-23 14:14:20,400 INFO  L153        SettingsManager]:  * Use memory slicer=true
[2023-12-23 14:14:20,400 INFO  L151        SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults:
[2023-12-23 14:14:20,400 INFO  L153        SettingsManager]:  * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS
[2023-12-23 14:14:20,400 INFO  L151        SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2023-12-23 14:14:20,401 INFO  L153        SettingsManager]:  * Create parallel compositions if possible=false
[2023-12-23 14:14:20,401 INFO  L153        SettingsManager]:  * Use SBE=true
[2023-12-23 14:14:20,401 INFO  L151        SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2023-12-23 14:14:20,401 INFO  L153        SettingsManager]:  * Pointer base address is valid at dereference=IGNORE
[2023-12-23 14:14:20,402 INFO  L153        SettingsManager]:  * sizeof long=4
[2023-12-23 14:14:20,402 INFO  L153        SettingsManager]:  * sizeof POINTER=4
[2023-12-23 14:14:20,402 INFO  L153        SettingsManager]:  * Check division by zero=IGNORE
[2023-12-23 14:14:20,402 INFO  L153        SettingsManager]:  * Pointer to allocated memory at dereference=IGNORE
[2023-12-23 14:14:20,403 INFO  L153        SettingsManager]:  * If two pointers are subtracted or compared they have the same base address=IGNORE
[2023-12-23 14:14:20,403 INFO  L153        SettingsManager]:  * Check array bounds for arrays that are off heap=IGNORE
[2023-12-23 14:14:20,403 INFO  L153        SettingsManager]:  * Adapt memory model on pointer casts if necessary=true
[2023-12-23 14:14:20,403 INFO  L153        SettingsManager]:  * Use bitvectors instead of ints=true
[2023-12-23 14:14:20,404 INFO  L153        SettingsManager]:  * Allow undefined functions=false
[2023-12-23 14:14:20,404 INFO  L153        SettingsManager]:  * Memory model=HoenickeLindenmann_4ByteResolution
[2023-12-23 14:14:20,404 INFO  L153        SettingsManager]:  * sizeof long double=12
[2023-12-23 14:14:20,404 INFO  L153        SettingsManager]:  * Check if freed pointer was valid=false
[2023-12-23 14:14:20,404 INFO  L153        SettingsManager]:  * Use constant arrays=true
[2023-12-23 14:14:20,405 INFO  L151        SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2023-12-23 14:14:20,405 INFO  L153        SettingsManager]:  * Size of a code block=SequenceOfStatements
[2023-12-23 14:14:20,405 INFO  L153        SettingsManager]:  * Only consider context switches at boundaries of atomic blocks=true
[2023-12-23 14:14:20,405 INFO  L153        SettingsManager]:  * SMT solver=External_DefaultMode
[2023-12-23 14:14:20,405 INFO  L153        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2023-12-23 14:14:20,406 INFO  L151        SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2023-12-23 14:14:20,406 INFO  L153        SettingsManager]:  * Compute Interpolants along a Counterexample=FPandBP
[2023-12-23 14:14:20,406 INFO  L153        SettingsManager]:  * Positions where we compute the Hoare Annotation=LoopHeads
[2023-12-23 14:14:20,406 INFO  L153        SettingsManager]:  * Trace refinement strategy=WOLF
[2023-12-23 14:14:20,406 INFO  L153        SettingsManager]:  * Command for external solver=cvc4 --incremental --print-success --lang smt
[2023-12-23 14:14:20,406 INFO  L153        SettingsManager]:  * Apply one-shot large block encoding in concurrent analysis=false
[2023-12-23 14:14:20,407 INFO  L153        SettingsManager]:  * Automaton type used in concurrency analysis=PETRI_NET
[2023-12-23 14:14:20,407 INFO  L153        SettingsManager]:  * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true
[2023-12-23 14:14:20,407 INFO  L153        SettingsManager]:  * Order on configurations for Petri net unfoldings=DBO
[2023-12-23 14:14:20,407 INFO  L153        SettingsManager]:  * SMT solver=External_ModelsAndUnsatCoreMode
[2023-12-23 14:14:20,407 INFO  L153        SettingsManager]:  * Logic for external solver=AUFBV
[2023-12-23 14:14:20,407 INFO  L153        SettingsManager]:  * Looper check in Petri net analysis=SEMANTIC
WARNING: An illegal reflective access operation has occurred
WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int)
WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1
WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations
WARNING: All illegal access operations will be denied in a future release
[2023-12-23 14:14:20,559 INFO  L75    nceAwareModelManager]: Repository-Root is: /tmp
[2023-12-23 14:14:20,577 INFO  L261   ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2023-12-23 14:14:20,579 INFO  L217   ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2023-12-23 14:14:20,579 INFO  L270        PluginConnector]: Initializing CDTParser...
[2023-12-23 14:14:20,580 INFO  L274        PluginConnector]: CDTParser initialized
[2023-12-23 14:14:20,581 INFO  L431   ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/hardness-nfm22/hardness_fillercode_fillercodestructure_filler-ps-ci_file-40.i
[2023-12-23 14:14:21,625 INFO  L533              CDTParser]: Created temporary CDT project at NULL
[2023-12-23 14:14:21,796 INFO  L384              CDTParser]: Found 1 translation units.
[2023-12-23 14:14:21,796 INFO  L180              CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/hardness-nfm22/hardness_fillercode_fillercodestructure_filler-ps-ci_file-40.i
[2023-12-23 14:14:21,802 INFO  L427              CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d0894744b/f45d36561a7d480fb6e357f42d86037c/FLAG32f37873b
[2023-12-23 14:14:21,813 INFO  L435              CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d0894744b/f45d36561a7d480fb6e357f42d86037c
[2023-12-23 14:14:21,815 INFO  L299   ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2023-12-23 14:14:21,816 INFO  L133        ToolchainWalker]: Walking toolchain with 5 elements.
[2023-12-23 14:14:21,817 INFO  L112        PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2023-12-23 14:14:21,817 INFO  L270        PluginConnector]: Initializing CACSL2BoogieTranslator...
[2023-12-23 14:14:21,820 INFO  L274        PluginConnector]: CACSL2BoogieTranslator initialized
[2023-12-23 14:14:21,821 INFO  L184        PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.12 02:14:21" (1/1) ...
[2023-12-23 14:14:21,822 INFO  L204        PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2eb848e6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 02:14:21, skipping insertion in model container
[2023-12-23 14:14:21,822 INFO  L184        PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.12 02:14:21" (1/1) ...
[2023-12-23 14:14:21,843 INFO  L177         MainTranslator]: Built tables and reachable declarations
[2023-12-23 14:14:21,934 WARN  L239   ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/hardness-nfm22/hardness_fillercode_fillercodestructure_filler-ps-ci_file-40.i[919,932]
[2023-12-23 14:14:21,983 INFO  L209          PostProcessor]: Analyzing one entry point: main
[2023-12-23 14:14:21,999 INFO  L202         MainTranslator]: Completed pre-run
[2023-12-23 14:14:22,012 WARN  L239   ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/hardness-nfm22/hardness_fillercode_fillercodestructure_filler-ps-ci_file-40.i[919,932]
[2023-12-23 14:14:22,048 INFO  L209          PostProcessor]: Analyzing one entry point: main
[2023-12-23 14:14:22,065 INFO  L206         MainTranslator]: Completed translation
[2023-12-23 14:14:22,067 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 02:14:22 WrapperNode
[2023-12-23 14:14:22,068 INFO  L131        PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2023-12-23 14:14:22,069 INFO  L112        PluginConnector]: ------------------------Boogie Procedure Inliner----------------------------
[2023-12-23 14:14:22,069 INFO  L270        PluginConnector]: Initializing Boogie Procedure Inliner...
[2023-12-23 14:14:22,069 INFO  L274        PluginConnector]: Boogie Procedure Inliner initialized
[2023-12-23 14:14:22,077 INFO  L184        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 02:14:22" (1/1) ...
[2023-12-23 14:14:22,095 INFO  L184        PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 02:14:22" (1/1) ...
[2023-12-23 14:14:22,115 INFO  L138                Inliner]: procedures = 27, calls = 31, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 159
[2023-12-23 14:14:22,115 INFO  L131        PluginConnector]: ------------------------ END Boogie Procedure Inliner----------------------------
[2023-12-23 14:14:22,116 INFO  L112        PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2023-12-23 14:14:22,116 INFO  L270        PluginConnector]: Initializing Boogie Preprocessor...
[2023-12-23 14:14:22,116 INFO  L274        PluginConnector]: Boogie Preprocessor initialized
[2023-12-23 14:14:22,124 INFO  L184        PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 02:14:22" (1/1) ...
[2023-12-23 14:14:22,124 INFO  L184        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 02:14:22" (1/1) ...
[2023-12-23 14:14:22,134 INFO  L184        PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 02:14:22" (1/1) ...
[2023-12-23 14:14:22,145 INFO  L175           MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0].
[2023-12-23 14:14:22,145 INFO  L184        PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 02:14:22" (1/1) ...
[2023-12-23 14:14:22,146 INFO  L184        PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 02:14:22" (1/1) ...
[2023-12-23 14:14:22,152 INFO  L184        PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 02:14:22" (1/1) ...
[2023-12-23 14:14:22,155 INFO  L184        PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 02:14:22" (1/1) ...
[2023-12-23 14:14:22,157 INFO  L184        PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 02:14:22" (1/1) ...
[2023-12-23 14:14:22,158 INFO  L184        PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 02:14:22" (1/1) ...
[2023-12-23 14:14:22,161 INFO  L131        PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2023-12-23 14:14:22,161 INFO  L112        PluginConnector]: ------------------------RCFGBuilder----------------------------
[2023-12-23 14:14:22,161 INFO  L270        PluginConnector]: Initializing RCFGBuilder...
[2023-12-23 14:14:22,161 INFO  L274        PluginConnector]: RCFGBuilder initialized
[2023-12-23 14:14:22,162 INFO  L184        PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 02:14:22" (1/1) ...
[2023-12-23 14:14:22,166 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2023-12-23 14:14:22,176 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2023-12-23 14:14:22,187 INFO  L229       MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null)
[2023-12-23 14:14:22,192 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process
[2023-12-23 14:14:22,217 INFO  L130     BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit
[2023-12-23 14:14:22,217 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0
[2023-12-23 14:14:22,218 INFO  L130     BoogieDeclarations]: Found specification of procedure assume_abort_if_not
[2023-12-23 14:14:22,219 INFO  L138     BoogieDeclarations]: Found implementation of procedure assume_abort_if_not
[2023-12-23 14:14:22,219 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2023-12-23 14:14:22,219 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2023-12-23 14:14:22,313 INFO  L241             CfgBuilder]: Building ICFG
[2023-12-23 14:14:22,316 INFO  L267             CfgBuilder]: Building CFG for each procedure with an implementation
[2023-12-23 14:14:26,557 INFO  L282             CfgBuilder]: Performing block encoding
[2023-12-23 14:14:26,639 INFO  L304             CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2023-12-23 14:14:26,639 INFO  L309             CfgBuilder]: Removed 1 assume(true) statements.
[2023-12-23 14:14:26,644 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.12 02:14:26 BoogieIcfgContainer
[2023-12-23 14:14:26,644 INFO  L131        PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2023-12-23 14:14:26,646 INFO  L112        PluginConnector]: ------------------------TraceAbstraction----------------------------
[2023-12-23 14:14:26,646 INFO  L270        PluginConnector]: Initializing TraceAbstraction...
[2023-12-23 14:14:26,649 INFO  L274        PluginConnector]: TraceAbstraction initialized
[2023-12-23 14:14:26,649 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.12 02:14:21" (1/3) ...
[2023-12-23 14:14:26,664 INFO  L204        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@65217bde and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.12 02:14:26, skipping insertion in model container
[2023-12-23 14:14:26,665 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 02:14:22" (2/3) ...
[2023-12-23 14:14:26,665 INFO  L204        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@65217bde and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.12 02:14:26, skipping insertion in model container
[2023-12-23 14:14:26,665 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.12 02:14:26" (3/3) ...
[2023-12-23 14:14:26,666 INFO  L112   eAbstractionObserver]: Analyzing ICFG hardness_fillercode_fillercodestructure_filler-ps-ci_file-40.i
[2023-12-23 14:14:26,679 INFO  L204   ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2023-12-23 14:14:26,679 INFO  L163   ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations.
[2023-12-23 14:14:26,751 INFO  L356      AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ========
[2023-12-23 14:14:26,756 INFO  L357      AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@3fcda529, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms]
[2023-12-23 14:14:26,756 INFO  L358      AbstractCegarLoop]: Starting to check reachability of 1 error locations.
[2023-12-23 14:14:26,766 INFO  L276                IsEmpty]: Start isEmpty. Operand  has 64 states, 43 states have (on average 1.5348837209302326) internal successors, (66), 44 states have internal predecessors, (66), 18 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 18 states have call predecessors, (18), 18 states have call successors, (18)
[2023-12-23 14:14:26,776 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 124
[2023-12-23 14:14:26,776 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-23 14:14:26,777 INFO  L195           NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2023-12-23 14:14:26,777 INFO  L420      AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-23 14:14:26,805 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-23 14:14:26,805 INFO  L85        PathProgramCache]: Analyzing trace with hash -1812594532, now seen corresponding path program 1 times
[2023-12-23 14:14:26,816 INFO  L118   FreeRefinementEngine]: Executing refinement strategy WOLF
[2023-12-23 14:14:26,817 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1349230035]
[2023-12-23 14:14:26,817 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-23 14:14:26,817 INFO  L173          SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3
[2023-12-23 14:14:26,817 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat
[2023-12-23 14:14:26,819 INFO  L229       MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null)
[2023-12-23 14:14:26,832 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Waiting until timeout for monitored process
[2023-12-23 14:14:27,184 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-23 14:14:27,201 INFO  L262         TraceCheckSpWp]: Trace formula consists of 223 conjuncts, 1 conjunts are in the unsatisfiable core
[2023-12-23 14:14:27,206 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-12-23 14:14:27,247 INFO  L134       CoverageAnalysis]: Checked inductivity of 612 backedges. 274 proven. 0 refuted. 0 times theorem prover too weak. 338 trivial. 0 not checked.
[2023-12-23 14:14:27,247 INFO  L323         TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2023-12-23 14:14:27,248 INFO  L136   FreeRefinementEngine]: Strategy WOLF found an infeasible trace
[2023-12-23 14:14:27,248 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1349230035]
[2023-12-23 14:14:27,248 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleMathsat [1349230035] provided 1 perfect and 0 imperfect interpolant sequences
[2023-12-23 14:14:27,248 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-12-23 14:14:27,248 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2023-12-23 14:14:27,250 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [584722309]
[2023-12-23 14:14:27,250 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-23 14:14:27,253 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 2 states
[2023-12-23 14:14:27,253 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF
[2023-12-23 14:14:27,285 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants.
[2023-12-23 14:14:27,286 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2
[2023-12-23 14:14:27,287 INFO  L87              Difference]: Start difference. First operand  has 64 states, 43 states have (on average 1.5348837209302326) internal successors, (66), 44 states have internal predecessors, (66), 18 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 18 states have call predecessors, (18), 18 states have call successors, (18) Second operand  has 2 states, 2 states have (on average 20.0) internal successors, (40), 2 states have internal predecessors, (40), 2 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18)
[2023-12-23 14:14:27,502 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-23 14:14:27,502 INFO  L93              Difference]: Finished difference Result 125 states and 220 transitions.
[2023-12-23 14:14:27,515 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2023-12-23 14:14:27,516 INFO  L78                 Accepts]: Start accepts. Automaton has  has 2 states, 2 states have (on average 20.0) internal successors, (40), 2 states have internal predecessors, (40), 2 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) Word has length 123
[2023-12-23 14:14:27,516 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-23 14:14:27,521 INFO  L225             Difference]: With dead ends: 125
[2023-12-23 14:14:27,521 INFO  L226             Difference]: Without dead ends: 62
[2023-12-23 14:14:27,524 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 122 GetRequests, 122 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2
[2023-12-23 14:14:27,538 INFO  L413           NwaCegarLoop]: 93 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 93 SdHoareTripleChecker+Invalid, 3 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time
[2023-12-23 14:14:27,540 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 93 Invalid, 3 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time]
[2023-12-23 14:14:27,550 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 62 states.
[2023-12-23 14:14:27,565 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 62 to 62.
[2023-12-23 14:14:27,566 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 62 states, 42 states have (on average 1.4285714285714286) internal successors, (60), 42 states have internal predecessors, (60), 18 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 18 states have call predecessors, (18), 18 states have call successors, (18)
[2023-12-23 14:14:27,567 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 62 states to 62 states and 96 transitions.
[2023-12-23 14:14:27,568 INFO  L78                 Accepts]: Start accepts. Automaton has 62 states and 96 transitions. Word has length 123
[2023-12-23 14:14:27,568 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-23 14:14:27,568 INFO  L495      AbstractCegarLoop]: Abstraction has 62 states and 96 transitions.
[2023-12-23 14:14:27,568 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 2 states, 2 states have (on average 20.0) internal successors, (40), 2 states have internal predecessors, (40), 2 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18)
[2023-12-23 14:14:27,568 INFO  L276                IsEmpty]: Start isEmpty. Operand 62 states and 96 transitions.
[2023-12-23 14:14:27,572 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 125
[2023-12-23 14:14:27,572 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-23 14:14:27,572 INFO  L195           NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2023-12-23 14:14:27,597 INFO  L552       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Ended with exit code 0
[2023-12-23 14:14:27,783 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3
[2023-12-23 14:14:27,784 INFO  L420      AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-23 14:14:27,784 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-23 14:14:27,784 INFO  L85        PathProgramCache]: Analyzing trace with hash -38676952, now seen corresponding path program 1 times
[2023-12-23 14:14:27,785 INFO  L118   FreeRefinementEngine]: Executing refinement strategy WOLF
[2023-12-23 14:14:27,785 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [214518754]
[2023-12-23 14:14:27,785 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-23 14:14:27,785 INFO  L173          SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3
[2023-12-23 14:14:27,787 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat
[2023-12-23 14:14:27,791 INFO  L229       MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null)
[2023-12-23 14:14:27,795 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Waiting until timeout for monitored process
[2023-12-23 14:14:28,139 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-23 14:14:28,152 INFO  L262         TraceCheckSpWp]: Trace formula consists of 225 conjuncts, 4 conjunts are in the unsatisfiable core
[2023-12-23 14:14:28,156 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-12-23 14:14:28,454 INFO  L134       CoverageAnalysis]: Checked inductivity of 612 backedges. 321 proven. 27 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked.
[2023-12-23 14:14:28,454 INFO  L327         TraceCheckSpWp]: Computing backward predicates...
[2023-12-23 14:14:28,721 INFO  L134       CoverageAnalysis]: Checked inductivity of 612 backedges. 24 proven. 27 refuted. 0 times theorem prover too weak. 561 trivial. 0 not checked.
[2023-12-23 14:14:28,722 INFO  L136   FreeRefinementEngine]: Strategy WOLF found an infeasible trace
[2023-12-23 14:14:28,724 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [214518754]
[2023-12-23 14:14:28,724 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleMathsat [214518754] provided 0 perfect and 2 imperfect interpolant sequences
[2023-12-23 14:14:28,724 INFO  L185   FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences.
[2023-12-23 14:14:28,724 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 7
[2023-12-23 14:14:28,724 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1457601505]
[2023-12-23 14:14:28,724 INFO  L85    oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton
[2023-12-23 14:14:28,725 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 7 states
[2023-12-23 14:14:28,725 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF
[2023-12-23 14:14:28,726 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants.
[2023-12-23 14:14:28,726 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42
[2023-12-23 14:14:28,726 INFO  L87              Difference]: Start difference. First operand 62 states and 96 transitions. Second operand  has 7 states, 7 states have (on average 6.571428571428571) internal successors, (46), 7 states have internal predecessors, (46), 2 states have call successors, (27), 2 states have call predecessors, (27), 4 states have return successors, (28), 2 states have call predecessors, (28), 2 states have call successors, (28)
[2023-12-23 14:14:29,287 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-23 14:14:29,288 INFO  L93              Difference]: Finished difference Result 129 states and 194 transitions.
[2023-12-23 14:14:29,299 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. 
[2023-12-23 14:14:29,299 INFO  L78                 Accepts]: Start accepts. Automaton has  has 7 states, 7 states have (on average 6.571428571428571) internal successors, (46), 7 states have internal predecessors, (46), 2 states have call successors, (27), 2 states have call predecessors, (27), 4 states have return successors, (28), 2 states have call predecessors, (28), 2 states have call successors, (28) Word has length 124
[2023-12-23 14:14:29,300 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-23 14:14:29,302 INFO  L225             Difference]: With dead ends: 129
[2023-12-23 14:14:29,302 INFO  L226             Difference]: Without dead ends: 68
[2023-12-23 14:14:29,302 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 250 GetRequests, 240 SyntacticMatches, 1 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=45, Invalid=65, Unknown=0, NotChecked=0, Total=110
[2023-12-23 14:14:29,303 INFO  L413           NwaCegarLoop]: 58 mSDtfsCounter, 73 mSDsluCounter, 77 mSDsCounter, 0 mSdLazyCounter, 120 mSolverCounterSat, 26 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 80 SdHoareTripleChecker+Valid, 135 SdHoareTripleChecker+Invalid, 146 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 26 IncrementalHoareTripleChecker+Valid, 120 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time
[2023-12-23 14:14:29,303 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [80 Valid, 135 Invalid, 146 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [26 Valid, 120 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time]
[2023-12-23 14:14:29,304 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 68 states.
[2023-12-23 14:14:29,312 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 68 to 64.
[2023-12-23 14:14:29,312 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 64 states, 43 states have (on average 1.2790697674418605) internal successors, (55), 43 states have internal predecessors, (55), 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)
[2023-12-23 14:14:29,313 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 64 states to 64 states and 91 transitions.
[2023-12-23 14:14:29,313 INFO  L78                 Accepts]: Start accepts. Automaton has 64 states and 91 transitions. Word has length 124
[2023-12-23 14:14:29,313 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-23 14:14:29,314 INFO  L495      AbstractCegarLoop]: Abstraction has 64 states and 91 transitions.
[2023-12-23 14:14:29,314 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 7 states, 7 states have (on average 6.571428571428571) internal successors, (46), 7 states have internal predecessors, (46), 2 states have call successors, (27), 2 states have call predecessors, (27), 4 states have return successors, (28), 2 states have call predecessors, (28), 2 states have call successors, (28)
[2023-12-23 14:14:29,314 INFO  L276                IsEmpty]: Start isEmpty. Operand 64 states and 91 transitions.
[2023-12-23 14:14:29,316 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 125
[2023-12-23 14:14:29,316 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-23 14:14:29,316 INFO  L195           NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2023-12-23 14:14:29,328 INFO  L540       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0
[2023-12-23 14:14:29,528 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3
[2023-12-23 14:14:29,528 INFO  L420      AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-23 14:14:29,529 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-23 14:14:29,529 INFO  L85        PathProgramCache]: Analyzing trace with hash -1249352412, now seen corresponding path program 1 times
[2023-12-23 14:14:29,529 INFO  L118   FreeRefinementEngine]: Executing refinement strategy WOLF
[2023-12-23 14:14:29,529 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1374134626]
[2023-12-23 14:14:29,529 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-23 14:14:29,530 INFO  L173          SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3
[2023-12-23 14:14:29,530 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat
[2023-12-23 14:14:29,538 INFO  L229       MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null)
[2023-12-23 14:14:29,543 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Waiting until timeout for monitored process
[2023-12-23 14:14:29,838 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-23 14:14:29,851 INFO  L262         TraceCheckSpWp]: Trace formula consists of 221 conjuncts, 2 conjunts are in the unsatisfiable core
[2023-12-23 14:14:29,854 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-12-23 14:14:29,875 INFO  L134       CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked.
[2023-12-23 14:14:29,875 INFO  L323         TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2023-12-23 14:14:29,875 INFO  L136   FreeRefinementEngine]: Strategy WOLF found an infeasible trace
[2023-12-23 14:14:29,875 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1374134626]
[2023-12-23 14:14:29,875 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleMathsat [1374134626] provided 1 perfect and 0 imperfect interpolant sequences
[2023-12-23 14:14:29,876 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-12-23 14:14:29,876 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2023-12-23 14:14:29,876 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [969519212]
[2023-12-23 14:14:29,876 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-23 14:14:29,876 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2023-12-23 14:14:29,876 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF
[2023-12-23 14:14:29,877 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2023-12-23 14:14:29,877 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2023-12-23 14:14:29,877 INFO  L87              Difference]: Start difference. First operand 64 states and 91 transitions. Second operand  has 3 states, 3 states have (on average 12.333333333333334) internal successors, (37), 3 states have internal predecessors, (37), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18)
[2023-12-23 14:14:30,016 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-23 14:14:30,016 INFO  L93              Difference]: Finished difference Result 127 states and 181 transitions.
[2023-12-23 14:14:30,025 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2023-12-23 14:14:30,026 INFO  L78                 Accepts]: Start accepts. Automaton has  has 3 states, 3 states have (on average 12.333333333333334) internal successors, (37), 3 states have internal predecessors, (37), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) Word has length 124
[2023-12-23 14:14:30,026 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-23 14:14:30,027 INFO  L225             Difference]: With dead ends: 127
[2023-12-23 14:14:30,027 INFO  L226             Difference]: Without dead ends: 64
[2023-12-23 14:14:30,028 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 123 GetRequests, 122 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2023-12-23 14:14:30,028 INFO  L413           NwaCegarLoop]: 83 mSDtfsCounter, 6 mSDsluCounter, 75 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 158 SdHoareTripleChecker+Invalid, 8 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2023-12-23 14:14:30,029 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 158 Invalid, 8 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2023-12-23 14:14:30,029 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 64 states.
[2023-12-23 14:14:30,035 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 64 to 64.
[2023-12-23 14:14:30,035 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 64 states, 43 states have (on average 1.255813953488372) internal successors, (54), 43 states have internal predecessors, (54), 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)
[2023-12-23 14:14:30,036 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 64 states to 64 states and 90 transitions.
[2023-12-23 14:14:30,036 INFO  L78                 Accepts]: Start accepts. Automaton has 64 states and 90 transitions. Word has length 124
[2023-12-23 14:14:30,037 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-23 14:14:30,037 INFO  L495      AbstractCegarLoop]: Abstraction has 64 states and 90 transitions.
[2023-12-23 14:14:30,037 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 12.333333333333334) internal successors, (37), 3 states have internal predecessors, (37), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18)
[2023-12-23 14:14:30,037 INFO  L276                IsEmpty]: Start isEmpty. Operand 64 states and 90 transitions.
[2023-12-23 14:14:30,038 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 125
[2023-12-23 14:14:30,038 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-23 14:14:30,038 INFO  L195           NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2023-12-23 14:14:30,050 INFO  L540       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0
[2023-12-23 14:14:30,251 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3
[2023-12-23 14:14:30,251 INFO  L420      AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-23 14:14:30,252 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-23 14:14:30,252 INFO  L85        PathProgramCache]: Analyzing trace with hash 525654950, now seen corresponding path program 1 times
[2023-12-23 14:14:30,252 INFO  L118   FreeRefinementEngine]: Executing refinement strategy WOLF
[2023-12-23 14:14:30,253 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1857878839]
[2023-12-23 14:14:30,253 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-23 14:14:30,253 INFO  L173          SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3
[2023-12-23 14:14:30,253 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat
[2023-12-23 14:14:30,256 INFO  L229       MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null)
[2023-12-23 14:14:30,261 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Waiting until timeout for monitored process
[2023-12-23 14:14:30,544 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-23 14:14:30,557 INFO  L262         TraceCheckSpWp]: Trace formula consists of 220 conjuncts, 5 conjunts are in the unsatisfiable core
[2023-12-23 14:14:30,560 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-12-23 14:14:30,690 INFO  L134       CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked.
[2023-12-23 14:14:30,690 INFO  L323         TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2023-12-23 14:14:30,690 INFO  L136   FreeRefinementEngine]: Strategy WOLF found an infeasible trace
[2023-12-23 14:14:30,690 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1857878839]
[2023-12-23 14:14:30,690 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleMathsat [1857878839] provided 1 perfect and 0 imperfect interpolant sequences
[2023-12-23 14:14:30,690 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-12-23 14:14:30,691 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5
[2023-12-23 14:14:30,691 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [856651515]
[2023-12-23 14:14:30,691 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-23 14:14:30,691 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 5 states
[2023-12-23 14:14:30,691 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF
[2023-12-23 14:14:30,692 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2023-12-23 14:14:30,692 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20
[2023-12-23 14:14:30,692 INFO  L87              Difference]: Start difference. First operand 64 states and 90 transitions. Second operand  has 5 states, 5 states have (on average 7.4) internal successors, (37), 5 states have internal predecessors, (37), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18)
[2023-12-23 14:14:31,560 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-23 14:14:31,561 INFO  L93              Difference]: Finished difference Result 237 states and 334 transitions.
[2023-12-23 14:14:31,561 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. 
[2023-12-23 14:14:31,561 INFO  L78                 Accepts]: Start accepts. Automaton has  has 5 states, 5 states have (on average 7.4) internal successors, (37), 5 states have internal predecessors, (37), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) Word has length 124
[2023-12-23 14:14:31,562 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-23 14:14:31,564 INFO  L225             Difference]: With dead ends: 237
[2023-12-23 14:14:31,564 INFO  L226             Difference]: Without dead ends: 174
[2023-12-23 14:14:31,565 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 127 GetRequests, 122 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42
[2023-12-23 14:14:31,566 INFO  L413           NwaCegarLoop]: 132 mSDtfsCounter, 189 mSDsluCounter, 154 mSDsCounter, 0 mSdLazyCounter, 136 mSolverCounterSat, 108 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 189 SdHoareTripleChecker+Valid, 286 SdHoareTripleChecker+Invalid, 244 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 108 IncrementalHoareTripleChecker+Valid, 136 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time
[2023-12-23 14:14:31,566 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [189 Valid, 286 Invalid, 244 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [108 Valid, 136 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time]
[2023-12-23 14:14:31,566 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 174 states.
[2023-12-23 14:14:31,579 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 174 to 104.
[2023-12-23 14:14:31,579 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 104 states, 62 states have (on average 1.1774193548387097) internal successors, (73), 63 states have internal predecessors, (73), 36 states have call successors, (36), 5 states have call predecessors, (36), 5 states have return successors, (36), 35 states have call predecessors, (36), 36 states have call successors, (36)
[2023-12-23 14:14:31,580 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 104 states to 104 states and 145 transitions.
[2023-12-23 14:14:31,580 INFO  L78                 Accepts]: Start accepts. Automaton has 104 states and 145 transitions. Word has length 124
[2023-12-23 14:14:31,581 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-23 14:14:31,581 INFO  L495      AbstractCegarLoop]: Abstraction has 104 states and 145 transitions.
[2023-12-23 14:14:31,581 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 5 states, 5 states have (on average 7.4) internal successors, (37), 5 states have internal predecessors, (37), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18)
[2023-12-23 14:14:31,581 INFO  L276                IsEmpty]: Start isEmpty. Operand 104 states and 145 transitions.
[2023-12-23 14:14:31,582 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 125
[2023-12-23 14:14:31,582 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-23 14:14:31,582 INFO  L195           NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2023-12-23 14:14:31,592 INFO  L540       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0
[2023-12-23 14:14:31,791 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3
[2023-12-23 14:14:31,792 INFO  L420      AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-23 14:14:31,792 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-23 14:14:31,792 INFO  L85        PathProgramCache]: Analyzing trace with hash 525714532, now seen corresponding path program 1 times
[2023-12-23 14:14:31,793 INFO  L118   FreeRefinementEngine]: Executing refinement strategy WOLF
[2023-12-23 14:14:31,793 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [452893365]
[2023-12-23 14:14:31,793 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-23 14:14:31,793 INFO  L173          SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3
[2023-12-23 14:14:31,793 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat
[2023-12-23 14:14:31,795 INFO  L229       MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null)
[2023-12-23 14:14:31,802 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Waiting until timeout for monitored process
[2023-12-23 14:14:32,107 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-23 14:14:32,121 INFO  L262         TraceCheckSpWp]: Trace formula consists of 219 conjuncts, 22 conjunts are in the unsatisfiable core
[2023-12-23 14:14:32,125 INFO  L285         TraceCheckSpWp]: Computing forward predicates...