/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_codestructure_dependencies_file-81.i


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


This is Ultimate 0.2.4-tmp.fs.bitabs-eval-d9c3e40-m
[2023-12-22 20:22:15,016 INFO  L188        SettingsManager]: Resetting all preferences to default values...
[2023-12-22 20:22:15,060 INFO  L114        SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Bitvector.epf
[2023-12-22 20:22:15,063 WARN  L101        SettingsManager]: Preference file contains the following unknown settings:
[2023-12-22 20:22:15,063 WARN  L103        SettingsManager]:   * de.uni_freiburg.informatik.ultimate.core.Log level for class
[2023-12-22 20:22:15,076 INFO  L130        SettingsManager]: Preferences different from defaults after loading the file:
[2023-12-22 20:22:15,076 INFO  L151        SettingsManager]: Preferences of UltimateCore differ from their defaults:
[2023-12-22 20:22:15,077 INFO  L153        SettingsManager]:  * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR;
[2023-12-22 20:22:15,077 INFO  L151        SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults:
[2023-12-22 20:22:15,077 INFO  L153        SettingsManager]:  * Use memory slicer=true
[2023-12-22 20:22:15,078 INFO  L151        SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults:
[2023-12-22 20:22:15,078 INFO  L153        SettingsManager]:  * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS
[2023-12-22 20:22:15,078 INFO  L151        SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2023-12-22 20:22:15,078 INFO  L153        SettingsManager]:  * Create parallel compositions if possible=false
[2023-12-22 20:22:15,079 INFO  L153        SettingsManager]:  * Use SBE=true
[2023-12-22 20:22:15,079 INFO  L151        SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2023-12-22 20:22:15,079 INFO  L153        SettingsManager]:  * Pointer base address is valid at dereference=IGNORE
[2023-12-22 20:22:15,079 INFO  L153        SettingsManager]:  * sizeof long=4
[2023-12-22 20:22:15,080 INFO  L153        SettingsManager]:  * sizeof POINTER=4
[2023-12-22 20:22:15,080 INFO  L153        SettingsManager]:  * Check division by zero=IGNORE
[2023-12-22 20:22:15,080 INFO  L153        SettingsManager]:  * Pointer to allocated memory at dereference=IGNORE
[2023-12-22 20:22:15,091 INFO  L153        SettingsManager]:  * If two pointers are subtracted or compared they have the same base address=IGNORE
[2023-12-22 20:22:15,092 INFO  L153        SettingsManager]:  * Check array bounds for arrays that are off heap=IGNORE
[2023-12-22 20:22:15,092 INFO  L153        SettingsManager]:  * Adapt memory model on pointer casts if necessary=true
[2023-12-22 20:22:15,094 INFO  L153        SettingsManager]:  * Use bitvectors instead of ints=true
[2023-12-22 20:22:15,094 INFO  L153        SettingsManager]:  * Allow undefined functions=false
[2023-12-22 20:22:15,094 INFO  L153        SettingsManager]:  * Memory model=HoenickeLindenmann_4ByteResolution
[2023-12-22 20:22:15,095 INFO  L153        SettingsManager]:  * sizeof long double=12
[2023-12-22 20:22:15,095 INFO  L153        SettingsManager]:  * Check if freed pointer was valid=false
[2023-12-22 20:22:15,095 INFO  L153        SettingsManager]:  * Use constant arrays=true
[2023-12-22 20:22:15,095 INFO  L151        SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2023-12-22 20:22:15,095 INFO  L153        SettingsManager]:  * Size of a code block=SequenceOfStatements
[2023-12-22 20:22:15,096 INFO  L153        SettingsManager]:  * Only consider context switches at boundaries of atomic blocks=true
[2023-12-22 20:22:15,096 INFO  L153        SettingsManager]:  * SMT solver=External_DefaultMode
[2023-12-22 20:22:15,096 INFO  L153        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2023-12-22 20:22:15,096 INFO  L151        SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2023-12-22 20:22:15,096 INFO  L153        SettingsManager]:  * Compute Interpolants along a Counterexample=FPandBP
[2023-12-22 20:22:15,097 INFO  L153        SettingsManager]:  * Positions where we compute the Hoare Annotation=LoopHeads
[2023-12-22 20:22:15,097 INFO  L153        SettingsManager]:  * Trace refinement strategy=WOLF
[2023-12-22 20:22:15,097 INFO  L153        SettingsManager]:  * Command for external solver=cvc4 --incremental --print-success --lang smt
[2023-12-22 20:22:15,097 INFO  L153        SettingsManager]:  * Apply one-shot large block encoding in concurrent analysis=false
[2023-12-22 20:22:15,097 INFO  L153        SettingsManager]:  * Automaton type used in concurrency analysis=PETRI_NET
[2023-12-22 20:22:15,097 INFO  L153        SettingsManager]:  * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true
[2023-12-22 20:22:15,098 INFO  L153        SettingsManager]:  * Order on configurations for Petri net unfoldings=DBO
[2023-12-22 20:22:15,098 INFO  L153        SettingsManager]:  * SMT solver=External_ModelsAndUnsatCoreMode
[2023-12-22 20:22:15,098 INFO  L153        SettingsManager]:  * Logic for external solver=AUFBV
[2023-12-22 20:22:15,098 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$1
WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations
WARNING: All illegal access operations will be denied in a future release
[2023-12-22 20:22:15,237 INFO  L75    nceAwareModelManager]: Repository-Root is: /tmp
[2023-12-22 20:22:15,250 INFO  L261   ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2023-12-22 20:22:15,252 INFO  L217   ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2023-12-22 20:22:15,253 INFO  L270        PluginConnector]: Initializing CDTParser...
[2023-12-22 20:22:15,253 INFO  L274        PluginConnector]: CDTParser initialized
[2023-12-22 20:22:15,254 INFO  L431   ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/hardness-nfm22/hardness_codestructure_dependencies_file-81.i
[2023-12-22 20:22:16,349 INFO  L533              CDTParser]: Created temporary CDT project at NULL
[2023-12-22 20:22:16,500 INFO  L384              CDTParser]: Found 1 translation units.
[2023-12-22 20:22:16,500 INFO  L180              CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/hardness-nfm22/hardness_codestructure_dependencies_file-81.i
[2023-12-22 20:22:16,526 INFO  L427              CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/dae016870/d78c2b89f3a34db780889f84fb9b57af/FLAGc90c5cb7d
[2023-12-22 20:22:16,536 INFO  L435              CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/dae016870/d78c2b89f3a34db780889f84fb9b57af
[2023-12-22 20:22:16,538 INFO  L299   ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2023-12-22 20:22:16,539 INFO  L133        ToolchainWalker]: Walking toolchain with 5 elements.
[2023-12-22 20:22:16,539 INFO  L112        PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2023-12-22 20:22:16,539 INFO  L270        PluginConnector]: Initializing CACSL2BoogieTranslator...
[2023-12-22 20:22:16,555 INFO  L274        PluginConnector]: CACSL2BoogieTranslator initialized
[2023-12-22 20:22:16,556 INFO  L184        PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.12 08:22:16" (1/1) ...
[2023-12-22 20:22:16,557 INFO  L204        PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@a360bb2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 08:22:16, skipping insertion in model container
[2023-12-22 20:22:16,557 INFO  L184        PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.12 08:22:16" (1/1) ...
[2023-12-22 20:22:16,588 INFO  L177         MainTranslator]: Built tables and reachable declarations
[2023-12-22 20:22:16,711 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_codestructure_dependencies_file-81.i[919,932]
[2023-12-22 20:22:16,761 INFO  L209          PostProcessor]: Analyzing one entry point: main
[2023-12-22 20:22:16,787 INFO  L202         MainTranslator]: Completed pre-run
[2023-12-22 20:22:16,800 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_codestructure_dependencies_file-81.i[919,932]
[2023-12-22 20:22:16,820 INFO  L209          PostProcessor]: Analyzing one entry point: main
[2023-12-22 20:22:16,833 INFO  L206         MainTranslator]: Completed translation
[2023-12-22 20:22:16,834 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 08:22:16 WrapperNode
[2023-12-22 20:22:16,834 INFO  L131        PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2023-12-22 20:22:16,835 INFO  L112        PluginConnector]: ------------------------Boogie Procedure Inliner----------------------------
[2023-12-22 20:22:16,835 INFO  L270        PluginConnector]: Initializing Boogie Procedure Inliner...
[2023-12-22 20:22:16,835 INFO  L274        PluginConnector]: Boogie Procedure Inliner initialized
[2023-12-22 20:22:16,839 INFO  L184        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 08:22:16" (1/1) ...
[2023-12-22 20:22:16,852 INFO  L184        PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 08:22:16" (1/1) ...
[2023-12-22 20:22:16,870 INFO  L138                Inliner]: procedures = 27, calls = 39, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 148
[2023-12-22 20:22:16,871 INFO  L131        PluginConnector]: ------------------------ END Boogie Procedure Inliner----------------------------
[2023-12-22 20:22:16,871 INFO  L112        PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2023-12-22 20:22:16,871 INFO  L270        PluginConnector]: Initializing Boogie Preprocessor...
[2023-12-22 20:22:16,871 INFO  L274        PluginConnector]: Boogie Preprocessor initialized
[2023-12-22 20:22:16,879 INFO  L184        PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 08:22:16" (1/1) ...
[2023-12-22 20:22:16,880 INFO  L184        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 08:22:16" (1/1) ...
[2023-12-22 20:22:16,882 INFO  L184        PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 08:22:16" (1/1) ...
[2023-12-22 20:22:16,891 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].
[2023-12-22 20:22:16,892 INFO  L184        PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 08:22:16" (1/1) ...
[2023-12-22 20:22:16,892 INFO  L184        PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 08:22:16" (1/1) ...
[2023-12-22 20:22:16,898 INFO  L184        PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 08:22:16" (1/1) ...
[2023-12-22 20:22:16,914 INFO  L184        PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 08:22:16" (1/1) ...
[2023-12-22 20:22:16,915 INFO  L184        PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 08:22:16" (1/1) ...
[2023-12-22 20:22:16,916 INFO  L184        PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 08:22:16" (1/1) ...
[2023-12-22 20:22:16,921 INFO  L131        PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2023-12-22 20:22:16,922 INFO  L112        PluginConnector]: ------------------------RCFGBuilder----------------------------
[2023-12-22 20:22:16,922 INFO  L270        PluginConnector]: Initializing RCFGBuilder...
[2023-12-22 20:22:16,922 INFO  L274        PluginConnector]: RCFGBuilder initialized
[2023-12-22 20:22:16,923 INFO  L184        PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 08:22:16" (1/1) ...
[2023-12-22 20:22:16,929 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2023-12-22 20:22:16,938 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2023-12-22 20:22:16,950 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)
[2023-12-22 20:22:16,956 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
[2023-12-22 20:22:16,977 INFO  L130     BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit
[2023-12-22 20:22:16,978 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0
[2023-12-22 20:22:16,978 INFO  L130     BoogieDeclarations]: Found specification of procedure assume_abort_if_not
[2023-12-22 20:22:16,979 INFO  L138     BoogieDeclarations]: Found implementation of procedure assume_abort_if_not
[2023-12-22 20:22:16,979 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2023-12-22 20:22:16,980 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2023-12-22 20:22:17,040 INFO  L241             CfgBuilder]: Building ICFG
[2023-12-22 20:22:17,042 INFO  L267             CfgBuilder]: Building CFG for each procedure with an implementation
[2023-12-22 20:22:17,287 INFO  L282             CfgBuilder]: Performing block encoding
[2023-12-22 20:22:17,322 INFO  L304             CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2023-12-22 20:22:17,322 INFO  L309             CfgBuilder]: Removed 1 assume(true) statements.
[2023-12-22 20:22:17,322 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.12 08:22:17 BoogieIcfgContainer
[2023-12-22 20:22:17,323 INFO  L131        PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2023-12-22 20:22:17,324 INFO  L112        PluginConnector]: ------------------------TraceAbstraction----------------------------
[2023-12-22 20:22:17,324 INFO  L270        PluginConnector]: Initializing TraceAbstraction...
[2023-12-22 20:22:17,326 INFO  L274        PluginConnector]: TraceAbstraction initialized
[2023-12-22 20:22:17,327 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.12 08:22:16" (1/3) ...
[2023-12-22 20:22:17,327 INFO  L204        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@77c4e792 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.12 08:22:17, skipping insertion in model container
[2023-12-22 20:22:17,327 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 08:22:16" (2/3) ...
[2023-12-22 20:22:17,327 INFO  L204        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@77c4e792 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.12 08:22:17, skipping insertion in model container
[2023-12-22 20:22:17,327 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.12 08:22:17" (3/3) ...
[2023-12-22 20:22:17,328 INFO  L112   eAbstractionObserver]: Analyzing ICFG hardness_codestructure_dependencies_file-81.i
[2023-12-22 20:22:17,340 INFO  L204   ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2023-12-22 20:22:17,340 INFO  L163   ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations.
[2023-12-22 20:22:17,381 INFO  L356      AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ========
[2023-12-22 20:22:17,386 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;@5cee5976, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms]
[2023-12-22 20:22:17,386 INFO  L358      AbstractCegarLoop]: Starting to check reachability of 1 error locations.
[2023-12-22 20:22:17,389 INFO  L276                IsEmpty]: Start isEmpty. Operand  has 61 states, 32 states have (on average 1.40625) internal successors, (45), 33 states have internal predecessors, (45), 26 states have call successors, (26), 1 states have call predecessors, (26), 1 states have return successors, (26), 26 states have call predecessors, (26), 26 states have call successors, (26)
[2023-12-22 20:22:17,406 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 156
[2023-12-22 20:22:17,406 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-22 20:22:17,407 INFO  L195           NwaCegarLoop]: trace histogram [26, 26, 26, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2023-12-22 20:22:17,407 INFO  L420      AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-22 20:22:17,411 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-22 20:22:17,411 INFO  L85        PathProgramCache]: Analyzing trace with hash 2035509043, now seen corresponding path program 1 times
[2023-12-22 20:22:17,423 INFO  L118   FreeRefinementEngine]: Executing refinement strategy WOLF
[2023-12-22 20:22:17,424 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [124008477]
[2023-12-22 20:22:17,424 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-22 20:22:17,424 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
[2023-12-22 20:22:17,425 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat
[2023-12-22 20:22:17,435 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)
[2023-12-22 20:22:17,436 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
[2023-12-22 20:22:17,594 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-22 20:22:17,600 INFO  L262         TraceCheckSpWp]: Trace formula consists of 258 conjuncts, 8 conjunts are in the unsatisfiable core
[2023-12-22 20:22:17,609 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-12-22 20:22:18,258 INFO  L134       CoverageAnalysis]: Checked inductivity of 1300 backedges. 25 proven. 75 refuted. 0 times theorem prover too weak. 1200 trivial. 0 not checked.
[2023-12-22 20:22:18,258 INFO  L327         TraceCheckSpWp]: Computing backward predicates...
[2023-12-22 20:22:18,517 INFO  L134       CoverageAnalysis]: Checked inductivity of 1300 backedges. 0 proven. 75 refuted. 0 times theorem prover too weak. 1225 trivial. 0 not checked.
[2023-12-22 20:22:18,518 INFO  L136   FreeRefinementEngine]: Strategy WOLF found an infeasible trace
[2023-12-22 20:22:18,518 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [124008477]
[2023-12-22 20:22:18,518 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleMathsat [124008477] provided 0 perfect and 2 imperfect interpolant sequences
[2023-12-22 20:22:18,519 INFO  L185   FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences.
[2023-12-22 20:22:18,519 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 7] total 14
[2023-12-22 20:22:18,520 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [484693696]
[2023-12-22 20:22:18,521 INFO  L85    oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton
[2023-12-22 20:22:18,525 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 14 states
[2023-12-22 20:22:18,526 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF
[2023-12-22 20:22:18,549 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants.
[2023-12-22 20:22:18,550 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=49, Invalid=133, Unknown=0, NotChecked=0, Total=182
[2023-12-22 20:22:18,552 INFO  L87              Difference]: Start difference. First operand  has 61 states, 32 states have (on average 1.40625) internal successors, (45), 33 states have internal predecessors, (45), 26 states have call successors, (26), 1 states have call predecessors, (26), 1 states have return successors, (26), 26 states have call predecessors, (26), 26 states have call successors, (26) Second operand  has 14 states, 14 states have (on average 3.857142857142857) internal successors, (54), 14 states have internal predecessors, (54), 4 states have call successors, (52), 3 states have call predecessors, (52), 4 states have return successors, (52), 2 states have call predecessors, (52), 4 states have call successors, (52)
[2023-12-22 20:22:19,389 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-22 20:22:19,390 INFO  L93              Difference]: Finished difference Result 248 states and 474 transitions.
[2023-12-22 20:22:19,395 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. 
[2023-12-22 20:22:19,396 INFO  L78                 Accepts]: Start accepts. Automaton has  has 14 states, 14 states have (on average 3.857142857142857) internal successors, (54), 14 states have internal predecessors, (54), 4 states have call successors, (52), 3 states have call predecessors, (52), 4 states have return successors, (52), 2 states have call predecessors, (52), 4 states have call successors, (52) Word has length 155
[2023-12-22 20:22:19,397 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-22 20:22:19,403 INFO  L225             Difference]: With dead ends: 248
[2023-12-22 20:22:19,403 INFO  L226             Difference]: Without dead ends: 188
[2023-12-22 20:22:19,406 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 326 GetRequests, 298 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 183 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=241, Invalid=629, Unknown=0, NotChecked=0, Total=870
[2023-12-22 20:22:19,408 INFO  L413           NwaCegarLoop]: 119 mSDtfsCounter, 304 mSDsluCounter, 236 mSDsCounter, 0 mSdLazyCounter, 513 mSolverCounterSat, 137 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 305 SdHoareTripleChecker+Valid, 355 SdHoareTripleChecker+Invalid, 650 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 137 IncrementalHoareTripleChecker+Valid, 513 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time
[2023-12-22 20:22:19,408 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [305 Valid, 355 Invalid, 650 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [137 Valid, 513 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time]
[2023-12-22 20:22:19,420 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 188 states.
[2023-12-22 20:22:19,446 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 188 to 63.
[2023-12-22 20:22:19,447 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 63 states, 34 states have (on average 1.2352941176470589) internal successors, (42), 34 states have internal predecessors, (42), 26 states have call successors, (26), 2 states have call predecessors, (26), 2 states have return successors, (26), 26 states have call predecessors, (26), 26 states have call successors, (26)
[2023-12-22 20:22:19,448 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 63 states to 63 states and 94 transitions.
[2023-12-22 20:22:19,449 INFO  L78                 Accepts]: Start accepts. Automaton has 63 states and 94 transitions. Word has length 155
[2023-12-22 20:22:19,450 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-22 20:22:19,450 INFO  L495      AbstractCegarLoop]: Abstraction has 63 states and 94 transitions.
[2023-12-22 20:22:19,450 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 14 states, 14 states have (on average 3.857142857142857) internal successors, (54), 14 states have internal predecessors, (54), 4 states have call successors, (52), 3 states have call predecessors, (52), 4 states have return successors, (52), 2 states have call predecessors, (52), 4 states have call successors, (52)
[2023-12-22 20:22:19,451 INFO  L276                IsEmpty]: Start isEmpty. Operand 63 states and 94 transitions.
[2023-12-22 20:22:19,453 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 156
[2023-12-22 20:22:19,454 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-22 20:22:19,454 INFO  L195           NwaCegarLoop]: trace histogram [26, 26, 26, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2023-12-22 20:22:19,472 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
[2023-12-22 20:22:19,659 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
[2023-12-22 20:22:19,660 INFO  L420      AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-22 20:22:19,660 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-22 20:22:19,660 INFO  L85        PathProgramCache]: Analyzing trace with hash -1579399883, now seen corresponding path program 1 times
[2023-12-22 20:22:19,661 INFO  L118   FreeRefinementEngine]: Executing refinement strategy WOLF
[2023-12-22 20:22:19,661 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [560310847]
[2023-12-22 20:22:19,661 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-22 20:22:19,661 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
[2023-12-22 20:22:19,661 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat
[2023-12-22 20:22:19,662 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)
[2023-12-22 20:22:19,686 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Waiting until timeout for monitored process
[2023-12-22 20:22:19,750 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-22 20:22:19,754 INFO  L262         TraceCheckSpWp]: Trace formula consists of 258 conjuncts, 5 conjunts are in the unsatisfiable core
[2023-12-22 20:22:19,758 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-12-22 20:22:19,896 INFO  L134       CoverageAnalysis]: Checked inductivity of 1300 backedges. 585 proven. 51 refuted. 0 times theorem prover too weak. 664 trivial. 0 not checked.
[2023-12-22 20:22:19,896 INFO  L327         TraceCheckSpWp]: Computing backward predicates...
[2023-12-22 20:22:19,948 INFO  L136   FreeRefinementEngine]: Strategy WOLF found an infeasible trace
[2023-12-22 20:22:19,948 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [560310847]
[2023-12-22 20:22:19,948 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleMathsat [560310847] provided 0 perfect and 1 imperfect interpolant sequences
[2023-12-22 20:22:19,949 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1004916654]
[2023-12-22 20:22:19,949 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-22 20:22:19,949 INFO  L173          SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt
[2023-12-22 20:22:19,949 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4
[2023-12-22 20:22:19,951 INFO  L229       MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null)
[2023-12-22 20:22:19,992 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (4)] Waiting until timeout for monitored process
[2023-12-22 20:22:20,122 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-22 20:22:20,133 INFO  L262         TraceCheckSpWp]: Trace formula consists of 258 conjuncts, 6 conjunts are in the unsatisfiable core
[2023-12-22 20:22:20,137 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-12-22 20:22:20,252 INFO  L134       CoverageAnalysis]: Checked inductivity of 1300 backedges. 585 proven. 51 refuted. 0 times theorem prover too weak. 664 trivial. 0 not checked.
[2023-12-22 20:22:20,252 INFO  L327         TraceCheckSpWp]: Computing backward predicates...
[2023-12-22 20:22:20,274 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1004916654] provided 0 perfect and 1 imperfect interpolant sequences
[2023-12-22 20:22:20,274 INFO  L185   FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences.
[2023-12-22 20:22:20,274 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 6
[2023-12-22 20:22:20,275 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1577978531]
[2023-12-22 20:22:20,275 INFO  L85    oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton
[2023-12-22 20:22:20,276 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 6 states
[2023-12-22 20:22:20,276 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF
[2023-12-22 20:22:20,276 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants.
[2023-12-22 20:22:20,277 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56
[2023-12-22 20:22:20,277 INFO  L87              Difference]: Start difference. First operand 63 states and 94 transitions. Second operand  has 6 states, 6 states have (on average 5.666666666666667) internal successors, (34), 6 states have internal predecessors, (34), 2 states have call successors, (26), 2 states have call predecessors, (26), 3 states have return successors, (26), 2 states have call predecessors, (26), 2 states have call successors, (26)
[2023-12-22 20:22:20,795 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-22 20:22:20,796 INFO  L93              Difference]: Finished difference Result 192 states and 281 transitions.
[2023-12-22 20:22:20,796 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. 
[2023-12-22 20:22:20,796 INFO  L78                 Accepts]: Start accepts. Automaton has  has 6 states, 6 states have (on average 5.666666666666667) internal successors, (34), 6 states have internal predecessors, (34), 2 states have call successors, (26), 2 states have call predecessors, (26), 3 states have return successors, (26), 2 states have call predecessors, (26), 2 states have call successors, (26) Word has length 155
[2023-12-22 20:22:20,797 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-22 20:22:20,798 INFO  L225             Difference]: With dead ends: 192
[2023-12-22 20:22:20,798 INFO  L226             Difference]: Without dead ends: 130
[2023-12-22 20:22:20,799 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 343 GetRequests, 327 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 36 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=93, Invalid=213, Unknown=0, NotChecked=0, Total=306
[2023-12-22 20:22:20,799 INFO  L413           NwaCegarLoop]: 108 mSDtfsCounter, 72 mSDsluCounter, 158 mSDsCounter, 0 mSdLazyCounter, 328 mSolverCounterSat, 54 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 81 SdHoareTripleChecker+Valid, 266 SdHoareTripleChecker+Invalid, 382 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 54 IncrementalHoareTripleChecker+Valid, 328 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time
[2023-12-22 20:22:20,800 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [81 Valid, 266 Invalid, 382 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [54 Valid, 328 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time]
[2023-12-22 20:22:20,800 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 130 states.
[2023-12-22 20:22:20,816 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 130 to 67.
[2023-12-22 20:22:20,817 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 67 states, 37 states have (on average 1.1891891891891893) internal successors, (44), 37 states have internal predecessors, (44), 26 states have call successors, (26), 3 states have call predecessors, (26), 3 states have return successors, (26), 26 states have call predecessors, (26), 26 states have call successors, (26)
[2023-12-22 20:22:20,817 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 67 states to 67 states and 96 transitions.
[2023-12-22 20:22:20,817 INFO  L78                 Accepts]: Start accepts. Automaton has 67 states and 96 transitions. Word has length 155
[2023-12-22 20:22:20,818 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-22 20:22:20,818 INFO  L495      AbstractCegarLoop]: Abstraction has 67 states and 96 transitions.
[2023-12-22 20:22:20,818 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 6 states, 6 states have (on average 5.666666666666667) internal successors, (34), 6 states have internal predecessors, (34), 2 states have call successors, (26), 2 states have call predecessors, (26), 3 states have return successors, (26), 2 states have call predecessors, (26), 2 states have call successors, (26)
[2023-12-22 20:22:20,818 INFO  L276                IsEmpty]: Start isEmpty. Operand 67 states and 96 transitions.
[2023-12-22 20:22:20,820 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 157
[2023-12-22 20:22:20,820 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-22 20:22:20,820 INFO  L195           NwaCegarLoop]: trace histogram [26, 26, 26, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2023-12-22 20:22:20,823 INFO  L540       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (4)] Forceful destruction successful, exit code 0
[2023-12-22 20:22:21,028 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
[2023-12-22 20:22:21,223 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt,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
[2023-12-22 20:22:21,224 INFO  L420      AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-22 20:22:21,224 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-22 20:22:21,225 INFO  L85        PathProgramCache]: Analyzing trace with hash -1717483546, now seen corresponding path program 1 times
[2023-12-22 20:22:21,225 INFO  L118   FreeRefinementEngine]: Executing refinement strategy WOLF
[2023-12-22 20:22:21,225 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [484298139]
[2023-12-22 20:22:21,225 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-22 20:22:21,225 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
[2023-12-22 20:22:21,226 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat
[2023-12-22 20:22:21,227 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)
[2023-12-22 20:22:21,244 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
[2023-12-22 20:22:21,312 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-22 20:22:21,316 INFO  L262         TraceCheckSpWp]: Trace formula consists of 259 conjuncts, 2 conjunts are in the unsatisfiable core
[2023-12-22 20:22:21,319 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-12-22 20:22:21,333 INFO  L134       CoverageAnalysis]: Checked inductivity of 1300 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1300 trivial. 0 not checked.
[2023-12-22 20:22:21,333 INFO  L323         TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2023-12-22 20:22:21,334 INFO  L136   FreeRefinementEngine]: Strategy WOLF found an infeasible trace
[2023-12-22 20:22:21,334 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [484298139]
[2023-12-22 20:22:21,334 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleMathsat [484298139] provided 1 perfect and 0 imperfect interpolant sequences
[2023-12-22 20:22:21,334 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-12-22 20:22:21,334 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2023-12-22 20:22:21,334 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1875802089]
[2023-12-22 20:22:21,334 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-22 20:22:21,335 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2023-12-22 20:22:21,335 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF
[2023-12-22 20:22:21,335 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2023-12-22 20:22:21,336 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2023-12-22 20:22:21,336 INFO  L87              Difference]: Start difference. First operand 67 states and 96 transitions. Second operand  has 3 states, 3 states have (on average 9.666666666666666) internal successors, (29), 3 states have internal predecessors, (29), 1 states have call successors, (26), 1 states have call predecessors, (26), 1 states have return successors, (26), 1 states have call predecessors, (26), 1 states have call successors, (26)
[2023-12-22 20:22:21,437 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-22 20:22:21,437 INFO  L93              Difference]: Finished difference Result 160 states and 224 transitions.
[2023-12-22 20:22:21,437 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2023-12-22 20:22:21,437 INFO  L78                 Accepts]: Start accepts. Automaton has  has 3 states, 3 states have (on average 9.666666666666666) internal successors, (29), 3 states have internal predecessors, (29), 1 states have call successors, (26), 1 states have call predecessors, (26), 1 states have return successors, (26), 1 states have call predecessors, (26), 1 states have call successors, (26) Word has length 156
[2023-12-22 20:22:21,438 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-22 20:22:21,439 INFO  L225             Difference]: With dead ends: 160
[2023-12-22 20:22:21,439 INFO  L226             Difference]: Without dead ends: 94
[2023-12-22 20:22:21,439 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 155 GetRequests, 154 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2023-12-22 20:22:21,440 INFO  L413           NwaCegarLoop]: 98 mSDtfsCounter, 21 mSDsluCounter, 76 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 21 SdHoareTripleChecker+Valid, 174 SdHoareTripleChecker+Invalid, 21 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2023-12-22 20:22:21,441 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [21 Valid, 174 Invalid, 21 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2023-12-22 20:22:21,441 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 94 states.
[2023-12-22 20:22:21,457 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 94 to 91.
[2023-12-22 20:22:21,457 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 91 states, 55 states have (on average 1.1818181818181819) internal successors, (65), 56 states have internal predecessors, (65), 30 states have call successors, (30), 5 states have call predecessors, (30), 5 states have return successors, (30), 29 states have call predecessors, (30), 30 states have call successors, (30)
[2023-12-22 20:22:21,458 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 91 states to 91 states and 125 transitions.
[2023-12-22 20:22:21,458 INFO  L78                 Accepts]: Start accepts. Automaton has 91 states and 125 transitions. Word has length 156
[2023-12-22 20:22:21,459 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-22 20:22:21,459 INFO  L495      AbstractCegarLoop]: Abstraction has 91 states and 125 transitions.
[2023-12-22 20:22:21,459 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 9.666666666666666) internal successors, (29), 3 states have internal predecessors, (29), 1 states have call successors, (26), 1 states have call predecessors, (26), 1 states have return successors, (26), 1 states have call predecessors, (26), 1 states have call successors, (26)
[2023-12-22 20:22:21,459 INFO  L276                IsEmpty]: Start isEmpty. Operand 91 states and 125 transitions.
[2023-12-22 20:22:21,460 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 157
[2023-12-22 20:22:21,460 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-22 20:22:21,461 INFO  L195           NwaCegarLoop]: trace histogram [26, 26, 26, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2023-12-22 20:22:21,465 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
[2023-12-22 20:22:21,665 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
[2023-12-22 20:22:21,666 INFO  L420      AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-22 20:22:21,666 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-22 20:22:21,666 INFO  L85        PathProgramCache]: Analyzing trace with hash -1717423964, now seen corresponding path program 1 times
[2023-12-22 20:22:21,667 INFO  L118   FreeRefinementEngine]: Executing refinement strategy WOLF
[2023-12-22 20:22:21,667 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [13031576]
[2023-12-22 20:22:21,667 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-22 20:22:21,667 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
[2023-12-22 20:22:21,667 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat
[2023-12-22 20:22:21,668 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)
[2023-12-22 20:22:21,670 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
[2023-12-22 20:22:21,747 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-22 20:22:21,752 INFO  L262         TraceCheckSpWp]: Trace formula consists of 258 conjuncts, 16 conjunts are in the unsatisfiable core
[2023-12-22 20:22:21,756 INFO  L285         TraceCheckSpWp]: Computing forward predicates...