/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-85.i


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


This is Ultimate 0.2.4-tmp.fs.bitabs-eval-d9c3e40-m
[2023-12-22 20:24:40,096 INFO  L188        SettingsManager]: Resetting all preferences to default values...
[2023-12-22 20:24:40,159 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 20:24:40,163 WARN  L101        SettingsManager]: Preference file contains the following unknown settings:
[2023-12-22 20:24:40,163 WARN  L103        SettingsManager]:   * de.uni_freiburg.informatik.ultimate.core.Log level for class
[2023-12-22 20:24:40,185 INFO  L130        SettingsManager]: Preferences different from defaults after loading the file:
[2023-12-22 20:24:40,185 INFO  L151        SettingsManager]: Preferences of UltimateCore differ from their defaults:
[2023-12-22 20:24:40,186 INFO  L153        SettingsManager]:  * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR;
[2023-12-22 20:24:40,186 INFO  L151        SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults:
[2023-12-22 20:24:40,189 INFO  L153        SettingsManager]:  * Use memory slicer=true
[2023-12-22 20:24:40,189 INFO  L151        SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults:
[2023-12-22 20:24:40,189 INFO  L153        SettingsManager]:  * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS
[2023-12-22 20:24:40,190 INFO  L151        SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2023-12-22 20:24:40,191 INFO  L153        SettingsManager]:  * Create parallel compositions if possible=false
[2023-12-22 20:24:40,191 INFO  L153        SettingsManager]:  * Use SBE=true
[2023-12-22 20:24:40,191 INFO  L151        SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2023-12-22 20:24:40,192 INFO  L153        SettingsManager]:  * Pointer base address is valid at dereference=IGNORE
[2023-12-22 20:24:40,192 INFO  L153        SettingsManager]:  * sizeof long=4
[2023-12-22 20:24:40,192 INFO  L153        SettingsManager]:  * sizeof POINTER=4
[2023-12-22 20:24:40,192 INFO  L153        SettingsManager]:  * Check division by zero=IGNORE
[2023-12-22 20:24:40,192 INFO  L153        SettingsManager]:  * Pointer to allocated memory at dereference=IGNORE
[2023-12-22 20:24:40,192 INFO  L153        SettingsManager]:  * If two pointers are subtracted or compared they have the same base address=IGNORE
[2023-12-22 20:24:40,193 INFO  L153        SettingsManager]:  * Check array bounds for arrays that are off heap=IGNORE
[2023-12-22 20:24:40,193 INFO  L153        SettingsManager]:  * Adapt memory model on pointer casts if necessary=true
[2023-12-22 20:24:40,193 INFO  L153        SettingsManager]:  * Use bitvectors instead of ints=true
[2023-12-22 20:24:40,193 INFO  L153        SettingsManager]:  * Allow undefined functions=false
[2023-12-22 20:24:40,193 INFO  L153        SettingsManager]:  * Memory model=HoenickeLindenmann_4ByteResolution
[2023-12-22 20:24:40,194 INFO  L153        SettingsManager]:  * sizeof long double=12
[2023-12-22 20:24:40,194 INFO  L153        SettingsManager]:  * Check if freed pointer was valid=false
[2023-12-22 20:24:40,194 INFO  L153        SettingsManager]:  * Use constant arrays=true
[2023-12-22 20:24:40,195 INFO  L151        SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2023-12-22 20:24:40,195 INFO  L153        SettingsManager]:  * Size of a code block=SequenceOfStatements
[2023-12-22 20:24:40,195 INFO  L153        SettingsManager]:  * Only consider context switches at boundaries of atomic blocks=true
[2023-12-22 20:24:40,195 INFO  L153        SettingsManager]:  * SMT solver=External_DefaultMode
[2023-12-22 20:24:40,195 INFO  L153        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2023-12-22 20:24:40,195 INFO  L151        SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2023-12-22 20:24:40,196 INFO  L153        SettingsManager]:  * Compute Interpolants along a Counterexample=FPandBP
[2023-12-22 20:24:40,196 INFO  L153        SettingsManager]:  * Positions where we compute the Hoare Annotation=LoopHeads
[2023-12-22 20:24:40,196 INFO  L153        SettingsManager]:  * Trace refinement strategy=WOLF
[2023-12-22 20:24:40,196 INFO  L153        SettingsManager]:  * Command for external solver=cvc4 --incremental --print-success --lang smt
[2023-12-22 20:24:40,196 INFO  L153        SettingsManager]:  * Apply one-shot large block encoding in concurrent analysis=false
[2023-12-22 20:24:40,196 INFO  L153        SettingsManager]:  * Automaton type used in concurrency analysis=PETRI_NET
[2023-12-22 20:24:40,196 INFO  L153        SettingsManager]:  * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true
[2023-12-22 20:24:40,197 INFO  L153        SettingsManager]:  * Order on configurations for Petri net unfoldings=DBO
[2023-12-22 20:24:40,197 INFO  L153        SettingsManager]:  * SMT solver=External_ModelsAndUnsatCoreMode
[2023-12-22 20:24:40,197 INFO  L153        SettingsManager]:  * Logic for external solver=AUFBV
[2023-12-22 20:24:40,197 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$1
WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations
WARNING: All illegal access operations will be denied in a future release
[2023-12-22 20:24:40,374 INFO  L75    nceAwareModelManager]: Repository-Root is: /tmp
[2023-12-22 20:24:40,400 INFO  L261   ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2023-12-22 20:24:40,402 INFO  L217   ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2023-12-22 20:24:40,403 INFO  L270        PluginConnector]: Initializing CDTParser...
[2023-12-22 20:24:40,403 INFO  L274        PluginConnector]: CDTParser initialized
[2023-12-22 20:24:40,405 INFO  L431   ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/hardness-nfm22/hardness_codestructure_dependencies_file-85.i
[2023-12-22 20:24:41,404 INFO  L533              CDTParser]: Created temporary CDT project at NULL
[2023-12-22 20:24:41,589 INFO  L384              CDTParser]: Found 1 translation units.
[2023-12-22 20:24:41,590 INFO  L180              CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/hardness-nfm22/hardness_codestructure_dependencies_file-85.i
[2023-12-22 20:24:41,597 INFO  L427              CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e76aa9173/a1f86254aa0a42c6b0b42242b38183ee/FLAG81fef32fc
[2023-12-22 20:24:41,615 INFO  L435              CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e76aa9173/a1f86254aa0a42c6b0b42242b38183ee
[2023-12-22 20:24:41,617 INFO  L299   ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2023-12-22 20:24:41,618 INFO  L133        ToolchainWalker]: Walking toolchain with 5 elements.
[2023-12-22 20:24:41,620 INFO  L112        PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2023-12-22 20:24:41,620 INFO  L270        PluginConnector]: Initializing CACSL2BoogieTranslator...
[2023-12-22 20:24:41,624 INFO  L274        PluginConnector]: CACSL2BoogieTranslator initialized
[2023-12-22 20:24:41,624 INFO  L184        PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.12 08:24:41" (1/1) ...
[2023-12-22 20:24:41,625 INFO  L204        PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5976b309 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 08:24:41, skipping insertion in model container
[2023-12-22 20:24:41,625 INFO  L184        PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.12 08:24:41" (1/1) ...
[2023-12-22 20:24:41,656 INFO  L177         MainTranslator]: Built tables and reachable declarations
[2023-12-22 20:24:41,748 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-85.i[919,932]
[2023-12-22 20:24:41,780 INFO  L209          PostProcessor]: Analyzing one entry point: main
[2023-12-22 20:24:41,791 INFO  L202         MainTranslator]: Completed pre-run
[2023-12-22 20:24:41,799 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-85.i[919,932]
[2023-12-22 20:24:41,817 INFO  L209          PostProcessor]: Analyzing one entry point: main
[2023-12-22 20:24:41,835 INFO  L206         MainTranslator]: Completed translation
[2023-12-22 20:24:41,836 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 08:24:41 WrapperNode
[2023-12-22 20:24:41,836 INFO  L131        PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2023-12-22 20:24:41,836 INFO  L112        PluginConnector]: ------------------------Boogie Procedure Inliner----------------------------
[2023-12-22 20:24:41,836 INFO  L270        PluginConnector]: Initializing Boogie Procedure Inliner...
[2023-12-22 20:24:41,837 INFO  L274        PluginConnector]: Boogie Procedure Inliner initialized
[2023-12-22 20:24:41,841 INFO  L184        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 08:24:41" (1/1) ...
[2023-12-22 20:24:41,850 INFO  L184        PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 08:24:41" (1/1) ...
[2023-12-22 20:24:41,873 INFO  L138                Inliner]: procedures = 27, calls = 28, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 120
[2023-12-22 20:24:41,874 INFO  L131        PluginConnector]: ------------------------ END Boogie Procedure Inliner----------------------------
[2023-12-22 20:24:41,874 INFO  L112        PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2023-12-22 20:24:41,874 INFO  L270        PluginConnector]: Initializing Boogie Preprocessor...
[2023-12-22 20:24:41,874 INFO  L274        PluginConnector]: Boogie Preprocessor initialized
[2023-12-22 20:24:41,889 INFO  L184        PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 08:24:41" (1/1) ...
[2023-12-22 20:24:41,889 INFO  L184        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 08:24:41" (1/1) ...
[2023-12-22 20:24:41,892 INFO  L184        PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 08:24:41" (1/1) ...
[2023-12-22 20:24:41,902 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 20:24:41,902 INFO  L184        PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 08:24:41" (1/1) ...
[2023-12-22 20:24:41,902 INFO  L184        PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 08:24:41" (1/1) ...
[2023-12-22 20:24:41,909 INFO  L184        PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 08:24:41" (1/1) ...
[2023-12-22 20:24:41,914 INFO  L184        PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 08:24:41" (1/1) ...
[2023-12-22 20:24:41,922 INFO  L184        PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 08:24:41" (1/1) ...
[2023-12-22 20:24:41,923 INFO  L184        PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 08:24:41" (1/1) ...
[2023-12-22 20:24:41,926 INFO  L131        PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2023-12-22 20:24:41,927 INFO  L112        PluginConnector]: ------------------------RCFGBuilder----------------------------
[2023-12-22 20:24:41,927 INFO  L270        PluginConnector]: Initializing RCFGBuilder...
[2023-12-22 20:24:41,927 INFO  L274        PluginConnector]: RCFGBuilder initialized
[2023-12-22 20:24:41,927 INFO  L184        PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 08:24:41" (1/1) ...
[2023-12-22 20:24:41,944 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2023-12-22 20:24:41,955 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2023-12-22 20:24:41,971 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 20:24:41,979 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 20:24:41,994 INFO  L130     BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit
[2023-12-22 20:24:41,994 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0
[2023-12-22 20:24:41,995 INFO  L130     BoogieDeclarations]: Found specification of procedure assume_abort_if_not
[2023-12-22 20:24:41,996 INFO  L138     BoogieDeclarations]: Found implementation of procedure assume_abort_if_not
[2023-12-22 20:24:41,996 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2023-12-22 20:24:41,996 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2023-12-22 20:24:42,058 INFO  L241             CfgBuilder]: Building ICFG
[2023-12-22 20:24:42,060 INFO  L267             CfgBuilder]: Building CFG for each procedure with an implementation
[2023-12-22 20:24:43,957 INFO  L282             CfgBuilder]: Performing block encoding
[2023-12-22 20:24:44,010 INFO  L304             CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2023-12-22 20:24:44,011 INFO  L309             CfgBuilder]: Removed 1 assume(true) statements.
[2023-12-22 20:24:44,011 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.12 08:24:44 BoogieIcfgContainer
[2023-12-22 20:24:44,011 INFO  L131        PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2023-12-22 20:24:44,012 INFO  L112        PluginConnector]: ------------------------TraceAbstraction----------------------------
[2023-12-22 20:24:44,012 INFO  L270        PluginConnector]: Initializing TraceAbstraction...
[2023-12-22 20:24:44,015 INFO  L274        PluginConnector]: TraceAbstraction initialized
[2023-12-22 20:24:44,015 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.12 08:24:41" (1/3) ...
[2023-12-22 20:24:44,015 INFO  L204        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7429bfdc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.12 08:24:44, skipping insertion in model container
[2023-12-22 20:24:44,015 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 08:24:41" (2/3) ...
[2023-12-22 20:24:44,016 INFO  L204        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7429bfdc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.12 08:24:44, skipping insertion in model container
[2023-12-22 20:24:44,016 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.12 08:24:44" (3/3) ...
[2023-12-22 20:24:44,016 INFO  L112   eAbstractionObserver]: Analyzing ICFG hardness_codestructure_dependencies_file-85.i
[2023-12-22 20:24:44,029 INFO  L204   ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2023-12-22 20:24:44,029 INFO  L163   ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations.
[2023-12-22 20:24:44,067 INFO  L356      AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ========
[2023-12-22 20:24:44,072 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;@7a7c5581, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms]
[2023-12-22 20:24:44,072 INFO  L358      AbstractCegarLoop]: Starting to check reachability of 1 error locations.
[2023-12-22 20:24:44,075 INFO  L276                IsEmpty]: Start isEmpty. Operand  has 46 states, 28 states have (on average 1.5) internal successors, (42), 29 states have internal predecessors, (42), 15 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15)
[2023-12-22 20:24:44,091 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 96
[2023-12-22 20:24:44,092 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-22 20:24:44,092 INFO  L195           NwaCegarLoop]: trace histogram [15, 15, 15, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 20:24:44,093 INFO  L420      AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-22 20:24:44,096 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-22 20:24:44,097 INFO  L85        PathProgramCache]: Analyzing trace with hash -162473035, now seen corresponding path program 1 times
[2023-12-22 20:24:44,110 INFO  L118   FreeRefinementEngine]: Executing refinement strategy WOLF
[2023-12-22 20:24:44,110 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [351469968]
[2023-12-22 20:24:44,110 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-22 20:24:44,111 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 20:24:44,111 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat
[2023-12-22 20:24:44,113 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 20:24:44,114 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Waiting until timeout for monitored process
[2023-12-22 20:24:44,432 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-22 20:24:44,449 INFO  L262         TraceCheckSpWp]: Trace formula consists of 172 conjuncts, 1 conjunts are in the unsatisfiable core
[2023-12-22 20:24:44,455 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-12-22 20:24:44,494 INFO  L134       CoverageAnalysis]: Checked inductivity of 420 backedges. 188 proven. 0 refuted. 0 times theorem prover too weak. 232 trivial. 0 not checked.
[2023-12-22 20:24:44,495 INFO  L323         TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2023-12-22 20:24:44,495 INFO  L136   FreeRefinementEngine]: Strategy WOLF found an infeasible trace
[2023-12-22 20:24:44,495 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [351469968]
[2023-12-22 20:24:44,496 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleMathsat [351469968] provided 1 perfect and 0 imperfect interpolant sequences
[2023-12-22 20:24:44,496 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-12-22 20:24:44,496 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2023-12-22 20:24:44,497 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [929722853]
[2023-12-22 20:24:44,497 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-22 20:24:44,503 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 2 states
[2023-12-22 20:24:44,503 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF
[2023-12-22 20:24:44,538 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants.
[2023-12-22 20:24:44,539 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2
[2023-12-22 20:24:44,541 INFO  L87              Difference]: Start difference. First operand  has 46 states, 28 states have (on average 1.5) internal successors, (42), 29 states have internal predecessors, (42), 15 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) Second operand  has 2 states, 2 states have (on average 13.5) internal successors, (27), 2 states have internal predecessors, (27), 2 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15)
[2023-12-22 20:24:46,258 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.68s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers []
[2023-12-22 20:24:46,259 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-22 20:24:46,259 INFO  L93              Difference]: Finished difference Result 89 states and 157 transitions.
[2023-12-22 20:24:46,292 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2023-12-22 20:24:46,293 INFO  L78                 Accepts]: Start accepts. Automaton has  has 2 states, 2 states have (on average 13.5) internal successors, (27), 2 states have internal predecessors, (27), 2 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) Word has length 95
[2023-12-22 20:24:46,294 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-22 20:24:46,298 INFO  L225             Difference]: With dead ends: 89
[2023-12-22 20:24:46,298 INFO  L226             Difference]: Without dead ends: 44
[2023-12-22 20:24:46,300 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 94 GetRequests, 94 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2
[2023-12-22 20:24:46,302 INFO  L413           NwaCegarLoop]: 63 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 63 SdHoareTripleChecker+Invalid, 3 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time
[2023-12-22 20:24:46,303 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 63 Invalid, 3 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time]
[2023-12-22 20:24:46,313 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 44 states.
[2023-12-22 20:24:46,326 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 44 to 44.
[2023-12-22 20:24:46,327 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 44 states, 27 states have (on average 1.3333333333333333) internal successors, (36), 27 states have internal predecessors, (36), 15 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15)
[2023-12-22 20:24:46,328 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 44 states to 44 states and 66 transitions.
[2023-12-22 20:24:46,329 INFO  L78                 Accepts]: Start accepts. Automaton has 44 states and 66 transitions. Word has length 95
[2023-12-22 20:24:46,329 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-22 20:24:46,329 INFO  L495      AbstractCegarLoop]: Abstraction has 44 states and 66 transitions.
[2023-12-22 20:24:46,330 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 2 states, 2 states have (on average 13.5) internal successors, (27), 2 states have internal predecessors, (27), 2 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15)
[2023-12-22 20:24:46,330 INFO  L276                IsEmpty]: Start isEmpty. Operand 44 states and 66 transitions.
[2023-12-22 20:24:46,332 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 96
[2023-12-22 20:24:46,332 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-22 20:24:46,332 INFO  L195           NwaCegarLoop]: trace histogram [15, 15, 15, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 20:24:46,344 INFO  L540       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0
[2023-12-22 20:24:46,536 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 20:24:46,537 INFO  L420      AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-22 20:24:46,537 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-22 20:24:46,537 INFO  L85        PathProgramCache]: Analyzing trace with hash 1602469675, now seen corresponding path program 1 times
[2023-12-22 20:24:46,538 INFO  L118   FreeRefinementEngine]: Executing refinement strategy WOLF
[2023-12-22 20:24:46,538 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [882180643]
[2023-12-22 20:24:46,538 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-22 20:24:46,538 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 20:24:46,538 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat
[2023-12-22 20:24:46,539 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 20:24:46,568 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 20:24:46,837 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-22 20:24:46,852 INFO  L262         TraceCheckSpWp]: Trace formula consists of 172 conjuncts, 3 conjunts are in the unsatisfiable core
[2023-12-22 20:24:46,857 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-12-22 20:24:47,289 INFO  L134       CoverageAnalysis]: Checked inductivity of 420 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 420 trivial. 0 not checked.
[2023-12-22 20:24:47,289 INFO  L323         TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2023-12-22 20:24:47,289 INFO  L136   FreeRefinementEngine]: Strategy WOLF found an infeasible trace
[2023-12-22 20:24:47,289 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [882180643]
[2023-12-22 20:24:47,289 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleMathsat [882180643] provided 1 perfect and 0 imperfect interpolant sequences
[2023-12-22 20:24:47,290 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-12-22 20:24:47,290 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2023-12-22 20:24:47,290 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [933072131]
[2023-12-22 20:24:47,290 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-22 20:24:47,291 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2023-12-22 20:24:47,291 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF
[2023-12-22 20:24:47,292 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2023-12-22 20:24:47,292 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2023-12-22 20:24:47,292 INFO  L87              Difference]: Start difference. First operand 44 states and 66 transitions. Second operand  has 4 states, 4 states have (on average 5.75) internal successors, (23), 3 states have internal predecessors, (23), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15)
[2023-12-22 20:24:48,747 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.27s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers []
[2023-12-22 20:24:48,750 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-22 20:24:48,750 INFO  L93              Difference]: Finished difference Result 87 states and 131 transitions.
[2023-12-22 20:24:48,780 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2023-12-22 20:24:48,781 INFO  L78                 Accepts]: Start accepts. Automaton has  has 4 states, 4 states have (on average 5.75) internal successors, (23), 3 states have internal predecessors, (23), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) Word has length 95
[2023-12-22 20:24:48,781 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-22 20:24:48,782 INFO  L225             Difference]: With dead ends: 87
[2023-12-22 20:24:48,782 INFO  L226             Difference]: Without dead ends: 44
[2023-12-22 20:24:48,782 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 95 GetRequests, 92 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20
[2023-12-22 20:24:48,783 INFO  L413           NwaCegarLoop]: 58 mSDtfsCounter, 55 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 32 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 55 SdHoareTripleChecker+Valid, 58 SdHoareTripleChecker+Invalid, 39 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 32 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time
[2023-12-22 20:24:48,784 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [55 Valid, 58 Invalid, 39 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [32 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time]
[2023-12-22 20:24:48,784 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 44 states.
[2023-12-22 20:24:48,790 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 44 to 44.
[2023-12-22 20:24:48,791 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 44 states, 27 states have (on average 1.2962962962962963) internal successors, (35), 27 states have internal predecessors, (35), 15 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15)
[2023-12-22 20:24:48,791 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 44 states to 44 states and 65 transitions.
[2023-12-22 20:24:48,791 INFO  L78                 Accepts]: Start accepts. Automaton has 44 states and 65 transitions. Word has length 95
[2023-12-22 20:24:48,793 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-22 20:24:48,793 INFO  L495      AbstractCegarLoop]: Abstraction has 44 states and 65 transitions.
[2023-12-22 20:24:48,793 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 4 states, 4 states have (on average 5.75) internal successors, (23), 3 states have internal predecessors, (23), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15)
[2023-12-22 20:24:48,793 INFO  L276                IsEmpty]: Start isEmpty. Operand 44 states and 65 transitions.
[2023-12-22 20:24:48,794 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 97
[2023-12-22 20:24:48,794 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-22 20:24:48,794 INFO  L195           NwaCegarLoop]: trace histogram [15, 15, 15, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 20:24:48,805 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 20:24:49,005 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
[2023-12-22 20:24:49,006 INFO  L420      AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-22 20:24:49,006 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-22 20:24:49,006 INFO  L85        PathProgramCache]: Analyzing trace with hash -716762689, now seen corresponding path program 1 times
[2023-12-22 20:24:49,007 INFO  L118   FreeRefinementEngine]: Executing refinement strategy WOLF
[2023-12-22 20:24:49,007 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [689629038]
[2023-12-22 20:24:49,007 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-22 20:24:49,007 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 20:24:49,007 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat
[2023-12-22 20:24:49,008 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)
[2023-12-22 20:24:49,009 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
[2023-12-22 20:24:49,261 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-22 20:24:49,275 INFO  L262         TraceCheckSpWp]: Trace formula consists of 174 conjuncts, 9 conjunts are in the unsatisfiable core
[2023-12-22 20:24:49,279 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-12-22 20:24:50,311 INFO  L134       CoverageAnalysis]: Checked inductivity of 420 backedges. 134 proven. 6 refuted. 0 times theorem prover too weak. 280 trivial. 0 not checked.
[2023-12-22 20:24:50,312 INFO  L327         TraceCheckSpWp]: Computing backward predicates...
[2023-12-22 20:24:50,815 INFO  L134       CoverageAnalysis]: Checked inductivity of 420 backedges. 36 proven. 6 refuted. 0 times theorem prover too weak. 378 trivial. 0 not checked.
[2023-12-22 20:24:50,815 INFO  L136   FreeRefinementEngine]: Strategy WOLF found an infeasible trace
[2023-12-22 20:24:50,815 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [689629038]
[2023-12-22 20:24:50,816 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleMathsat [689629038] provided 0 perfect and 2 imperfect interpolant sequences
[2023-12-22 20:24:50,816 INFO  L185   FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences.
[2023-12-22 20:24:50,816 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 8] total 13
[2023-12-22 20:24:50,816 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1223566037]
[2023-12-22 20:24:50,816 INFO  L85    oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton
[2023-12-22 20:24:50,816 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 13 states
[2023-12-22 20:24:50,817 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF
[2023-12-22 20:24:50,817 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants.
[2023-12-22 20:24:50,817 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=113, Unknown=0, NotChecked=0, Total=156
[2023-12-22 20:24:50,818 INFO  L87              Difference]: Start difference. First operand 44 states and 65 transitions. Second operand  has 13 states, 13 states have (on average 3.769230769230769) internal successors, (49), 13 states have internal predecessors, (49), 4 states have call successors, (30), 3 states have call predecessors, (30), 5 states have return successors, (30), 4 states have call predecessors, (30), 4 states have call successors, (30)
[2023-12-22 20:24:53,410 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.01s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers []
[2023-12-22 20:24:56,800 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.31s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers []
[2023-12-22 20:24:57,150 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-22 20:24:57,150 INFO  L93              Difference]: Finished difference Result 200 states and 292 transitions.
[2023-12-22 20:24:57,150 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. 
[2023-12-22 20:24:57,151 INFO  L78                 Accepts]: Start accepts. Automaton has  has 13 states, 13 states have (on average 3.769230769230769) internal successors, (49), 13 states have internal predecessors, (49), 4 states have call successors, (30), 3 states have call predecessors, (30), 5 states have return successors, (30), 4 states have call predecessors, (30), 4 states have call successors, (30) Word has length 96
[2023-12-22 20:24:57,151 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-22 20:24:57,153 INFO  L225             Difference]: With dead ends: 200
[2023-12-22 20:24:57,153 INFO  L226             Difference]: Without dead ends: 157
[2023-12-22 20:24:57,153 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 202 GetRequests, 180 SyntacticMatches, 1 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 70 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=162, Invalid=344, Unknown=0, NotChecked=0, Total=506
[2023-12-22 20:24:57,154 INFO  L413           NwaCegarLoop]: 67 mSDtfsCounter, 269 mSDsluCounter, 386 mSDsCounter, 0 mSdLazyCounter, 440 mSolverCounterSat, 175 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 282 SdHoareTripleChecker+Valid, 453 SdHoareTripleChecker+Invalid, 615 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 175 IncrementalHoareTripleChecker+Valid, 440 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.9s IncrementalHoareTripleChecker+Time
[2023-12-22 20:24:57,154 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [282 Valid, 453 Invalid, 615 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [175 Valid, 440 Invalid, 0 Unknown, 0 Unchecked, 5.9s Time]
[2023-12-22 20:24:57,155 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 157 states.
[2023-12-22 20:24:57,171 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 157 to 112.
[2023-12-22 20:24:57,172 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 112 states, 66 states have (on average 1.2424242424242424) internal successors, (82), 67 states have internal predecessors, (82), 41 states have call successors, (41), 4 states have call predecessors, (41), 4 states have return successors, (41), 40 states have call predecessors, (41), 41 states have call successors, (41)
[2023-12-22 20:24:57,173 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 112 states to 112 states and 164 transitions.
[2023-12-22 20:24:57,173 INFO  L78                 Accepts]: Start accepts. Automaton has 112 states and 164 transitions. Word has length 96
[2023-12-22 20:24:57,173 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-22 20:24:57,173 INFO  L495      AbstractCegarLoop]: Abstraction has 112 states and 164 transitions.
[2023-12-22 20:24:57,174 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 13 states, 13 states have (on average 3.769230769230769) internal successors, (49), 13 states have internal predecessors, (49), 4 states have call successors, (30), 3 states have call predecessors, (30), 5 states have return successors, (30), 4 states have call predecessors, (30), 4 states have call successors, (30)
[2023-12-22 20:24:57,174 INFO  L276                IsEmpty]: Start isEmpty. Operand 112 states and 164 transitions.
[2023-12-22 20:24:57,175 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 97
[2023-12-22 20:24:57,175 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-22 20:24:57,175 INFO  L195           NwaCegarLoop]: trace histogram [15, 15, 15, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 20:24:57,188 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
[2023-12-22 20:24:57,390 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
[2023-12-22 20:24:57,391 INFO  L420      AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-22 20:24:57,391 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-22 20:24:57,391 INFO  L85        PathProgramCache]: Analyzing trace with hash -1468851013, now seen corresponding path program 1 times
[2023-12-22 20:24:57,392 INFO  L118   FreeRefinementEngine]: Executing refinement strategy WOLF
[2023-12-22 20:24:57,392 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [243460217]
[2023-12-22 20:24:57,392 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-22 20:24:57,392 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 20:24:57,392 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat
[2023-12-22 20:24:57,393 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 20:24:57,395 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 20:24:57,667 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-22 20:24:57,684 INFO  L262         TraceCheckSpWp]: Trace formula consists of 173 conjuncts, 27 conjunts are in the unsatisfiable core
[2023-12-22 20:24:57,688 INFO  L285         TraceCheckSpWp]: Computing forward predicates...