/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/nla-digbench-scaling/ps3-ll_valuebound20.c


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


This is Ultimate 0.2.4-tmp.fs.bitabs-eval-d9c3e40-m
[2023-12-25 04:44:23,534 INFO  L188        SettingsManager]: Resetting all preferences to default values...
[2023-12-25 04:44:23,587 INFO  L114        SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Bitvector.epf
[2023-12-25 04:44:23,590 WARN  L101        SettingsManager]: Preference file contains the following unknown settings:
[2023-12-25 04:44:23,591 WARN  L103        SettingsManager]:   * de.uni_freiburg.informatik.ultimate.core.Log level for class
[2023-12-25 04:44:23,608 INFO  L130        SettingsManager]: Preferences different from defaults after loading the file:
[2023-12-25 04:44:23,609 INFO  L151        SettingsManager]: Preferences of UltimateCore differ from their defaults:
[2023-12-25 04:44:23,609 INFO  L153        SettingsManager]:  * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR;
[2023-12-25 04:44:23,610 INFO  L151        SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults:
[2023-12-25 04:44:23,610 INFO  L153        SettingsManager]:  * Use memory slicer=true
[2023-12-25 04:44:23,610 INFO  L151        SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults:
[2023-12-25 04:44:23,611 INFO  L153        SettingsManager]:  * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS
[2023-12-25 04:44:23,611 INFO  L151        SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2023-12-25 04:44:23,612 INFO  L153        SettingsManager]:  * Create parallel compositions if possible=false
[2023-12-25 04:44:23,612 INFO  L153        SettingsManager]:  * Use SBE=true
[2023-12-25 04:44:23,612 INFO  L151        SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2023-12-25 04:44:23,613 INFO  L153        SettingsManager]:  * Pointer base address is valid at dereference=IGNORE
[2023-12-25 04:44:23,613 INFO  L153        SettingsManager]:  * sizeof long=4
[2023-12-25 04:44:23,613 INFO  L153        SettingsManager]:  * sizeof POINTER=4
[2023-12-25 04:44:23,614 INFO  L153        SettingsManager]:  * Check division by zero=IGNORE
[2023-12-25 04:44:23,614 INFO  L153        SettingsManager]:  * Pointer to allocated memory at dereference=IGNORE
[2023-12-25 04:44:23,614 INFO  L153        SettingsManager]:  * If two pointers are subtracted or compared they have the same base address=IGNORE
[2023-12-25 04:44:23,615 INFO  L153        SettingsManager]:  * Check array bounds for arrays that are off heap=IGNORE
[2023-12-25 04:44:23,615 INFO  L153        SettingsManager]:  * Adapt memory model on pointer casts if necessary=true
[2023-12-25 04:44:23,615 INFO  L153        SettingsManager]:  * Use bitvectors instead of ints=true
[2023-12-25 04:44:23,616 INFO  L153        SettingsManager]:  * Allow undefined functions=false
[2023-12-25 04:44:23,616 INFO  L153        SettingsManager]:  * Memory model=HoenickeLindenmann_4ByteResolution
[2023-12-25 04:44:23,616 INFO  L153        SettingsManager]:  * sizeof long double=12
[2023-12-25 04:44:23,617 INFO  L153        SettingsManager]:  * Check if freed pointer was valid=false
[2023-12-25 04:44:23,617 INFO  L153        SettingsManager]:  * Use constant arrays=true
[2023-12-25 04:44:23,617 INFO  L151        SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2023-12-25 04:44:23,617 INFO  L153        SettingsManager]:  * Size of a code block=SequenceOfStatements
[2023-12-25 04:44:23,618 INFO  L153        SettingsManager]:  * Only consider context switches at boundaries of atomic blocks=true
[2023-12-25 04:44:23,618 INFO  L153        SettingsManager]:  * SMT solver=External_DefaultMode
[2023-12-25 04:44:23,618 INFO  L153        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2023-12-25 04:44:23,618 INFO  L151        SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2023-12-25 04:44:23,619 INFO  L153        SettingsManager]:  * Compute Interpolants along a Counterexample=FPandBP
[2023-12-25 04:44:23,619 INFO  L153        SettingsManager]:  * Positions where we compute the Hoare Annotation=LoopHeads
[2023-12-25 04:44:23,619 INFO  L153        SettingsManager]:  * Trace refinement strategy=WOLF
[2023-12-25 04:44:23,619 INFO  L153        SettingsManager]:  * Command for external solver=cvc4 --incremental --print-success --lang smt
[2023-12-25 04:44:23,620 INFO  L153        SettingsManager]:  * Apply one-shot large block encoding in concurrent analysis=false
[2023-12-25 04:44:23,620 INFO  L153        SettingsManager]:  * Automaton type used in concurrency analysis=PETRI_NET
[2023-12-25 04:44:23,620 INFO  L153        SettingsManager]:  * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true
[2023-12-25 04:44:23,620 INFO  L153        SettingsManager]:  * Order on configurations for Petri net unfoldings=DBO
[2023-12-25 04:44:23,620 INFO  L153        SettingsManager]:  * SMT solver=External_ModelsAndUnsatCoreMode
[2023-12-25 04:44:23,621 INFO  L153        SettingsManager]:  * Logic for external solver=AUFBV
[2023-12-25 04:44:23,621 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$1
WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations
WARNING: All illegal access operations will be denied in a future release
[2023-12-25 04:44:23,818 INFO  L75    nceAwareModelManager]: Repository-Root is: /tmp
[2023-12-25 04:44:23,842 INFO  L261   ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2023-12-25 04:44:23,844 INFO  L217   ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2023-12-25 04:44:23,845 INFO  L270        PluginConnector]: Initializing CDTParser...
[2023-12-25 04:44:23,845 INFO  L274        PluginConnector]: CDTParser initialized
[2023-12-25 04:44:23,847 INFO  L431   ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/nla-digbench-scaling/ps3-ll_valuebound20.c
[2023-12-25 04:44:24,980 INFO  L533              CDTParser]: Created temporary CDT project at NULL
[2023-12-25 04:44:25,130 INFO  L384              CDTParser]: Found 1 translation units.
[2023-12-25 04:44:25,131 INFO  L180              CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/nla-digbench-scaling/ps3-ll_valuebound20.c
[2023-12-25 04:44:25,136 INFO  L427              CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/07679738e/76a08ac952ca44a9b6e6de3cc7f76d8b/FLAGed6f9c34c
[2023-12-25 04:44:25,146 INFO  L435              CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/07679738e/76a08ac952ca44a9b6e6de3cc7f76d8b
[2023-12-25 04:44:25,149 INFO  L299   ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2023-12-25 04:44:25,150 INFO  L133        ToolchainWalker]: Walking toolchain with 5 elements.
[2023-12-25 04:44:25,151 INFO  L112        PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2023-12-25 04:44:25,151 INFO  L270        PluginConnector]: Initializing CACSL2BoogieTranslator...
[2023-12-25 04:44:25,155 INFO  L274        PluginConnector]: CACSL2BoogieTranslator initialized
[2023-12-25 04:44:25,155 INFO  L184        PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.12 04:44:25" (1/1) ...
[2023-12-25 04:44:25,156 INFO  L204        PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4492da4d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 04:44:25, skipping insertion in model container
[2023-12-25 04:44:25,156 INFO  L184        PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.12 04:44:25" (1/1) ...
[2023-12-25 04:44:25,172 INFO  L177         MainTranslator]: Built tables and reachable declarations
[2023-12-25 04:44:25,283 WARN  L239   ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/nla-digbench-scaling/ps3-ll_valuebound20.c[458,471]
[2023-12-25 04:44:25,295 INFO  L209          PostProcessor]: Analyzing one entry point: main
[2023-12-25 04:44:25,304 INFO  L202         MainTranslator]: Completed pre-run
[2023-12-25 04:44:25,312 WARN  L239   ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/nla-digbench-scaling/ps3-ll_valuebound20.c[458,471]
[2023-12-25 04:44:25,317 INFO  L209          PostProcessor]: Analyzing one entry point: main
[2023-12-25 04:44:25,327 INFO  L206         MainTranslator]: Completed translation
[2023-12-25 04:44:25,327 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 04:44:25 WrapperNode
[2023-12-25 04:44:25,327 INFO  L131        PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2023-12-25 04:44:25,328 INFO  L112        PluginConnector]: ------------------------Boogie Procedure Inliner----------------------------
[2023-12-25 04:44:25,328 INFO  L270        PluginConnector]: Initializing Boogie Procedure Inliner...
[2023-12-25 04:44:25,328 INFO  L274        PluginConnector]: Boogie Procedure Inliner initialized
[2023-12-25 04:44:25,333 INFO  L184        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 04:44:25" (1/1) ...
[2023-12-25 04:44:25,340 INFO  L184        PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 04:44:25" (1/1) ...
[2023-12-25 04:44:25,353 INFO  L138                Inliner]: procedures = 14, calls = 10, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 36
[2023-12-25 04:44:25,354 INFO  L131        PluginConnector]: ------------------------ END Boogie Procedure Inliner----------------------------
[2023-12-25 04:44:25,354 INFO  L112        PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2023-12-25 04:44:25,355 INFO  L270        PluginConnector]: Initializing Boogie Preprocessor...
[2023-12-25 04:44:25,355 INFO  L274        PluginConnector]: Boogie Preprocessor initialized
[2023-12-25 04:44:25,361 INFO  L184        PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 04:44:25" (1/1) ...
[2023-12-25 04:44:25,362 INFO  L184        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 04:44:25" (1/1) ...
[2023-12-25 04:44:25,364 INFO  L184        PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 04:44:25" (1/1) ...
[2023-12-25 04:44:25,372 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].
[2023-12-25 04:44:25,372 INFO  L184        PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 04:44:25" (1/1) ...
[2023-12-25 04:44:25,372 INFO  L184        PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 04:44:25" (1/1) ...
[2023-12-25 04:44:25,376 INFO  L184        PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 04:44:25" (1/1) ...
[2023-12-25 04:44:25,378 INFO  L184        PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 04:44:25" (1/1) ...
[2023-12-25 04:44:25,379 INFO  L184        PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 04:44:25" (1/1) ...
[2023-12-25 04:44:25,380 INFO  L184        PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 04:44:25" (1/1) ...
[2023-12-25 04:44:25,381 INFO  L131        PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2023-12-25 04:44:25,382 INFO  L112        PluginConnector]: ------------------------RCFGBuilder----------------------------
[2023-12-25 04:44:25,382 INFO  L270        PluginConnector]: Initializing RCFGBuilder...
[2023-12-25 04:44:25,382 INFO  L274        PluginConnector]: RCFGBuilder initialized
[2023-12-25 04:44:25,383 INFO  L184        PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 04:44:25" (1/1) ...
[2023-12-25 04:44:25,392 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2023-12-25 04:44:25,403 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2023-12-25 04:44:25,425 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)
[2023-12-25 04:44:25,453 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
[2023-12-25 04:44:25,460 INFO  L130     BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit
[2023-12-25 04:44:25,460 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0
[2023-12-25 04:44:25,460 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2023-12-25 04:44:25,462 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2023-12-25 04:44:25,462 INFO  L130     BoogieDeclarations]: Found specification of procedure __VERIFIER_assert
[2023-12-25 04:44:25,462 INFO  L138     BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert
[2023-12-25 04:44:25,520 INFO  L241             CfgBuilder]: Building ICFG
[2023-12-25 04:44:25,522 INFO  L267             CfgBuilder]: Building CFG for each procedure with an implementation
[2023-12-25 04:44:25,737 INFO  L282             CfgBuilder]: Performing block encoding
[2023-12-25 04:44:25,767 INFO  L304             CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2023-12-25 04:44:25,767 INFO  L309             CfgBuilder]: Removed 1 assume(true) statements.
[2023-12-25 04:44:25,767 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.12 04:44:25 BoogieIcfgContainer
[2023-12-25 04:44:25,767 INFO  L131        PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2023-12-25 04:44:25,773 INFO  L112        PluginConnector]: ------------------------TraceAbstraction----------------------------
[2023-12-25 04:44:25,773 INFO  L270        PluginConnector]: Initializing TraceAbstraction...
[2023-12-25 04:44:25,776 INFO  L274        PluginConnector]: TraceAbstraction initialized
[2023-12-25 04:44:25,776 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.12 04:44:25" (1/3) ...
[2023-12-25 04:44:25,776 INFO  L204        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7233eede and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.12 04:44:25, skipping insertion in model container
[2023-12-25 04:44:25,776 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 04:44:25" (2/3) ...
[2023-12-25 04:44:25,777 INFO  L204        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7233eede and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.12 04:44:25, skipping insertion in model container
[2023-12-25 04:44:25,777 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.12 04:44:25" (3/3) ...
[2023-12-25 04:44:25,778 INFO  L112   eAbstractionObserver]: Analyzing ICFG ps3-ll_valuebound20.c
[2023-12-25 04:44:25,793 INFO  L204   ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2023-12-25 04:44:25,793 INFO  L163   ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations.
[2023-12-25 04:44:25,827 INFO  L356      AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ========
[2023-12-25 04:44:25,832 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;@6943a253, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms]
[2023-12-25 04:44:25,834 INFO  L358      AbstractCegarLoop]: Starting to check reachability of 1 error locations.
[2023-12-25 04:44:25,838 INFO  L276                IsEmpty]: Start isEmpty. Operand  has 15 states, 10 states have (on average 1.6) internal successors, (16), 11 states have internal predecessors, (16), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2)
[2023-12-25 04:44:25,843 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 9
[2023-12-25 04:44:25,843 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-25 04:44:25,844 INFO  L195           NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1]
[2023-12-25 04:44:25,844 INFO  L420      AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-25 04:44:25,848 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-25 04:44:25,849 INFO  L85        PathProgramCache]: Analyzing trace with hash -1892700911, now seen corresponding path program 1 times
[2023-12-25 04:44:25,859 INFO  L118   FreeRefinementEngine]: Executing refinement strategy WOLF
[2023-12-25 04:44:25,859 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1572841749]
[2023-12-25 04:44:25,860 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-25 04:44:25,860 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
[2023-12-25 04:44:25,860 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat
[2023-12-25 04:44:25,863 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)
[2023-12-25 04:44:25,867 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
[2023-12-25 04:44:25,965 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-25 04:44:25,972 INFO  L262         TraceCheckSpWp]: Trace formula consists of 25 conjuncts, 1 conjunts are in the unsatisfiable core
[2023-12-25 04:44:25,975 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-12-25 04:44:25,989 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2023-12-25 04:44:25,990 INFO  L323         TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2023-12-25 04:44:25,990 INFO  L136   FreeRefinementEngine]: Strategy WOLF found an infeasible trace
[2023-12-25 04:44:25,990 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1572841749]
[2023-12-25 04:44:25,991 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleMathsat [1572841749] provided 1 perfect and 0 imperfect interpolant sequences
[2023-12-25 04:44:25,991 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-12-25 04:44:25,991 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2023-12-25 04:44:25,992 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1903365739]
[2023-12-25 04:44:25,993 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-25 04:44:25,996 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 2 states
[2023-12-25 04:44:25,996 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF
[2023-12-25 04:44:26,016 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants.
[2023-12-25 04:44:26,017 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2
[2023-12-25 04:44:26,019 INFO  L87              Difference]: Start difference. First operand  has 15 states, 10 states have (on average 1.6) internal successors, (16), 11 states have internal predecessors, (16), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Second operand  has 2 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 04:44:26,047 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-25 04:44:26,047 INFO  L93              Difference]: Finished difference Result 28 states and 39 transitions.
[2023-12-25 04:44:26,050 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2023-12-25 04:44:26,051 INFO  L78                 Accepts]: Start accepts. Automaton has  has 2 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 8
[2023-12-25 04:44:26,052 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-25 04:44:26,057 INFO  L225             Difference]: With dead ends: 28
[2023-12-25 04:44:26,057 INFO  L226             Difference]: Without dead ends: 13
[2023-12-25 04:44:26,060 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2
[2023-12-25 04:44:26,066 INFO  L413           NwaCegarLoop]: 14 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 14 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2023-12-25 04:44:26,067 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 14 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2023-12-25 04:44:26,084 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 13 states.
[2023-12-25 04:44:26,096 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 13 to 13.
[2023-12-25 04:44:26,098 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 13 states, 9 states have (on average 1.2222222222222223) internal successors, (11), 10 states have internal predecessors, (11), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1)
[2023-12-25 04:44:26,099 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 14 transitions.
[2023-12-25 04:44:26,100 INFO  L78                 Accepts]: Start accepts. Automaton has 13 states and 14 transitions. Word has length 8
[2023-12-25 04:44:26,100 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-25 04:44:26,100 INFO  L495      AbstractCegarLoop]: Abstraction has 13 states and 14 transitions.
[2023-12-25 04:44:26,100 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 2 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 04:44:26,101 INFO  L276                IsEmpty]: Start isEmpty. Operand 13 states and 14 transitions.
[2023-12-25 04:44:26,101 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 9
[2023-12-25 04:44:26,102 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-25 04:44:26,102 INFO  L195           NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1]
[2023-12-25 04:44:26,110 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
[2023-12-25 04:44:26,307 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
[2023-12-25 04:44:26,308 INFO  L420      AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-25 04:44:26,309 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-25 04:44:26,309 INFO  L85        PathProgramCache]: Analyzing trace with hash -115906089, now seen corresponding path program 1 times
[2023-12-25 04:44:26,309 INFO  L118   FreeRefinementEngine]: Executing refinement strategy WOLF
[2023-12-25 04:44:26,309 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1202773121]
[2023-12-25 04:44:26,310 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-25 04:44:26,310 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
[2023-12-25 04:44:26,310 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat
[2023-12-25 04:44:26,311 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)
[2023-12-25 04:44:26,312 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
[2023-12-25 04:44:26,389 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-25 04:44:26,394 INFO  L262         TraceCheckSpWp]: Trace formula consists of 25 conjuncts, 5 conjunts are in the unsatisfiable core
[2023-12-25 04:44:26,397 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-12-25 04:44:26,476 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2023-12-25 04:44:26,480 INFO  L323         TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2023-12-25 04:44:26,480 INFO  L136   FreeRefinementEngine]: Strategy WOLF found an infeasible trace
[2023-12-25 04:44:26,480 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1202773121]
[2023-12-25 04:44:26,480 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleMathsat [1202773121] provided 1 perfect and 0 imperfect interpolant sequences
[2023-12-25 04:44:26,480 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-12-25 04:44:26,481 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5
[2023-12-25 04:44:26,481 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1773433106]
[2023-12-25 04:44:26,481 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-25 04:44:26,482 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 5 states
[2023-12-25 04:44:26,482 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF
[2023-12-25 04:44:26,483 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2023-12-25 04:44:26,483 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20
[2023-12-25 04:44:26,483 INFO  L87              Difference]: Start difference. First operand 13 states and 14 transitions. Second operand  has 5 states, 5 states have (on average 1.4) internal successors, (7), 4 states have internal predecessors, (7), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 04:44:26,886 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-25 04:44:26,886 INFO  L93              Difference]: Finished difference Result 23 states and 25 transitions.
[2023-12-25 04:44:26,898 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. 
[2023-12-25 04:44:26,898 INFO  L78                 Accepts]: Start accepts. Automaton has  has 5 states, 5 states have (on average 1.4) internal successors, (7), 4 states have internal predecessors, (7), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 8
[2023-12-25 04:44:26,899 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-25 04:44:26,899 INFO  L225             Difference]: With dead ends: 23
[2023-12-25 04:44:26,899 INFO  L226             Difference]: Without dead ends: 20
[2023-12-25 04:44:26,900 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30
[2023-12-25 04:44:26,901 INFO  L413           NwaCegarLoop]: 9 mSDtfsCounter, 6 mSDsluCounter, 25 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 34 SdHoareTripleChecker+Invalid, 22 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 21 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time
[2023-12-25 04:44:26,902 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [7 Valid, 34 Invalid, 22 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time]
[2023-12-25 04:44:26,902 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 20 states.
[2023-12-25 04:44:26,906 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 20 to 20.
[2023-12-25 04:44:26,906 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 20 states, 14 states have (on average 1.1428571428571428) internal successors, (16), 15 states have internal predecessors, (16), 3 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2)
[2023-12-25 04:44:26,907 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 21 transitions.
[2023-12-25 04:44:26,908 INFO  L78                 Accepts]: Start accepts. Automaton has 20 states and 21 transitions. Word has length 8
[2023-12-25 04:44:26,908 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-25 04:44:26,908 INFO  L495      AbstractCegarLoop]: Abstraction has 20 states and 21 transitions.
[2023-12-25 04:44:26,908 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 5 states, 5 states have (on average 1.4) internal successors, (7), 4 states have internal predecessors, (7), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 04:44:26,908 INFO  L276                IsEmpty]: Start isEmpty. Operand 20 states and 21 transitions.
[2023-12-25 04:44:26,909 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 16
[2023-12-25 04:44:26,909 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-25 04:44:26,909 INFO  L195           NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2023-12-25 04:44:26,919 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
[2023-12-25 04:44:27,110 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
[2023-12-25 04:44:27,111 INFO  L420      AbstractCegarLoop]: === Iteration 3 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-25 04:44:27,112 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-25 04:44:27,112 INFO  L85        PathProgramCache]: Analyzing trace with hash -339209529, now seen corresponding path program 1 times
[2023-12-25 04:44:27,112 INFO  L118   FreeRefinementEngine]: Executing refinement strategy WOLF
[2023-12-25 04:44:27,113 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [817851265]
[2023-12-25 04:44:27,113 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-25 04:44:27,113 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
[2023-12-25 04:44:27,113 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat
[2023-12-25 04:44:27,115 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)
[2023-12-25 04:44:27,138 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
[2023-12-25 04:44:27,266 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-25 04:44:27,280 INFO  L262         TraceCheckSpWp]: Trace formula consists of 37 conjuncts, 7 conjunts are in the unsatisfiable core
[2023-12-25 04:44:27,282 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-12-25 04:44:27,436 INFO  L134       CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2023-12-25 04:44:27,436 INFO  L327         TraceCheckSpWp]: Computing backward predicates...
[2023-12-25 04:44:32,407 INFO  L134       CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked.
[2023-12-25 04:44:32,408 INFO  L136   FreeRefinementEngine]: Strategy WOLF found an infeasible trace
[2023-12-25 04:44:32,408 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [817851265]
[2023-12-25 04:44:32,408 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleMathsat [817851265] provided 1 perfect and 1 imperfect interpolant sequences
[2023-12-25 04:44:32,408 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences.
[2023-12-25 04:44:32,408 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [6] total 9
[2023-12-25 04:44:32,409 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1518203621]
[2023-12-25 04:44:32,409 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-25 04:44:32,409 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 5 states
[2023-12-25 04:44:32,409 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF
[2023-12-25 04:44:32,410 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2023-12-25 04:44:32,411 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72
[2023-12-25 04:44:32,411 INFO  L87              Difference]: Start difference. First operand 20 states and 21 transitions. Second operand  has 5 states, 5 states have (on average 2.2) internal successors, (11), 4 states have internal predecessors, (11), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1)
[2023-12-25 04:44:33,860 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-25 04:44:33,861 INFO  L93              Difference]: Finished difference Result 20 states and 21 transitions.
[2023-12-25 04:44:33,874 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. 
[2023-12-25 04:44:33,875 INFO  L78                 Accepts]: Start accepts. Automaton has  has 5 states, 5 states have (on average 2.2) internal successors, (11), 4 states have internal predecessors, (11), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 15
[2023-12-25 04:44:33,875 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-25 04:44:33,875 INFO  L225             Difference]: With dead ends: 20
[2023-12-25 04:44:33,875 INFO  L226             Difference]: Without dead ends: 0
[2023-12-25 04:44:33,876 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 20 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 3.4s TimeCoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90
[2023-12-25 04:44:33,877 INFO  L413           NwaCegarLoop]: 7 mSDtfsCounter, 6 mSDsluCounter, 14 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 21 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time
[2023-12-25 04:44:33,877 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 21 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time]
[2023-12-25 04:44:33,878 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 0 states.
[2023-12-25 04:44:33,878 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0.
[2023-12-25 04:44:33,878 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 04:44:33,878 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions.
[2023-12-25 04:44:33,878 INFO  L78                 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 15
[2023-12-25 04:44:33,879 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-25 04:44:33,879 INFO  L495      AbstractCegarLoop]: Abstraction has 0 states and 0 transitions.
[2023-12-25 04:44:33,879 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 5 states, 5 states have (on average 2.2) internal successors, (11), 4 states have internal predecessors, (11), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1)
[2023-12-25 04:44:33,879 INFO  L276                IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions.
[2023-12-25 04:44:33,879 INFO  L282                IsEmpty]: Finished isEmpty. No accepting run.
[2023-12-25 04:44:33,881 INFO  L805   garLoopResultBuilder]: Registering result SAFE for location __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining)
[2023-12-25 04:44:33,891 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
[2023-12-25 04:44:34,084 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
[2023-12-25 04:44:34,086 INFO  L343    DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions.
[2023-12-25 04:44:39,018 INFO  L899   garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed.
[2023-12-25 04:44:39,019 INFO  L895   garLoopResultBuilder]: At program point L27-2(lines 27 36) the Hoare annotation is: (= (_ bv0 64) (bvadd (bvneg (bvmul |ULTIMATE.start_main_~y~0#1| (bvmul |ULTIMATE.start_main_~y~0#1| (bvmul |ULTIMATE.start_main_~y~0#1| (_ bv2 64))))) (bvneg (bvmul |ULTIMATE.start_main_~y~0#1| (bvmul (_ bv3 64) |ULTIMATE.start_main_~y~0#1|))) (bvmul |ULTIMATE.start_main_~x~0#1| (_ bv6 64)) (bvneg |ULTIMATE.start_main_~y~0#1|)))
[2023-12-25 04:44:39,019 INFO  L895   garLoopResultBuilder]: At program point L27-3(lines 27 36) the Hoare annotation is: (= (_ bv0 64) (bvadd (bvneg (bvmul |ULTIMATE.start_main_~y~0#1| (bvmul |ULTIMATE.start_main_~y~0#1| (bvmul |ULTIMATE.start_main_~y~0#1| (_ bv2 64))))) (bvneg (bvmul |ULTIMATE.start_main_~y~0#1| (bvmul (_ bv3 64) |ULTIMATE.start_main_~y~0#1|))) (bvmul |ULTIMATE.start_main_~x~0#1| (_ bv6 64)) (bvneg |ULTIMATE.start_main_~y~0#1|)))
[2023-12-25 04:44:39,019 INFO  L899   garLoopResultBuilder]: For program point $Ultimate##0(line -1) no Hoare annotation was computed.
[2023-12-25 04:44:39,019 INFO  L899   garLoopResultBuilder]: For program point L7(line 7) no Hoare annotation was computed.
[2023-12-25 04:44:39,019 INFO  L895   garLoopResultBuilder]: At program point L28(line 28) the Hoare annotation is: (= (_ bv0 64) (bvadd (bvneg (bvmul |ULTIMATE.start_main_~y~0#1| (bvmul |ULTIMATE.start_main_~y~0#1| (bvmul |ULTIMATE.start_main_~y~0#1| (_ bv2 64))))) (bvneg (bvmul |ULTIMATE.start_main_~y~0#1| (bvmul (_ bv3 64) |ULTIMATE.start_main_~y~0#1|))) (bvmul |ULTIMATE.start_main_~x~0#1| (_ bv6 64)) (bvneg |ULTIMATE.start_main_~y~0#1|)))
[2023-12-25 04:44:39,019 INFO  L899   garLoopResultBuilder]: For program point L28-1(lines 27 36) no Hoare annotation was computed.
[2023-12-25 04:44:39,019 INFO  L899   garLoopResultBuilder]: For program point L6(lines 6 8) no Hoare annotation was computed.
[2023-12-25 04:44:39,020 INFO  L899   garLoopResultBuilder]: For program point L37(line 37) no Hoare annotation was computed.
[2023-12-25 04:44:39,020 INFO  L899   garLoopResultBuilder]: For program point L11(lines 11 12) no Hoare annotation was computed.
[2023-12-25 04:44:39,020 INFO  L899   garLoopResultBuilder]: For program point L10(lines 10 13) no Hoare annotation was computed.
[2023-12-25 04:44:39,020 INFO  L899   garLoopResultBuilder]: For program point __VERIFIER_assertEXIT(lines 9 15) no Hoare annotation was computed.
[2023-12-25 04:44:39,020 INFO  L902   garLoopResultBuilder]: At program point $Ultimate##0(lines 9 15) the Hoare annotation is: true
[2023-12-25 04:44:39,020 INFO  L899   garLoopResultBuilder]: For program point L10-2(lines 9 15) no Hoare annotation was computed.
[2023-12-25 04:44:39,020 INFO  L899   garLoopResultBuilder]: For program point __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION(line 12) no Hoare annotation was computed.
[2023-12-25 04:44:39,023 INFO  L445         BasicCegarLoop]: Path program histogram: [1, 1, 1]
[2023-12-25 04:44:39,025 INFO  L179   ceAbstractionStarter]: Computing trace abstraction results
[2023-12-25 04:44:39,039 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.12 04:44:39 BoogieIcfgContainer
[2023-12-25 04:44:39,039 INFO  L131        PluginConnector]: ------------------------ END TraceAbstraction----------------------------
[2023-12-25 04:44:39,040 INFO  L158              Benchmark]: Toolchain (without parser) took 13890.38ms. Allocated memory was 185.6MB in the beginning and 287.3MB in the end (delta: 101.7MB). Free memory was 144.1MB in the beginning and 234.7MB in the end (delta: -90.6MB). Peak memory consumption was 12.0MB. Max. memory is 8.0GB.
[2023-12-25 04:44:39,041 INFO  L158              Benchmark]: CDTParser took 0.19ms. Allocated memory is still 185.6MB. Free memory is still 138.6MB. There was no memory consumed. Max. memory is 8.0GB.
[2023-12-25 04:44:39,041 INFO  L158              Benchmark]: CACSL2BoogieTranslator took 176.80ms. Allocated memory is still 185.6MB. Free memory was 144.1MB in the beginning and 132.6MB in the end (delta: 11.5MB). Peak memory consumption was 11.5MB. Max. memory is 8.0GB.
[2023-12-25 04:44:39,041 INFO  L158              Benchmark]: Boogie Procedure Inliner took 25.97ms. Allocated memory is still 185.6MB. Free memory was 132.6MB in the beginning and 130.9MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB.
[2023-12-25 04:44:39,042 INFO  L158              Benchmark]: Boogie Preprocessor took 27.13ms. Allocated memory is still 185.6MB. Free memory was 130.9MB in the beginning and 129.5MB in the end (delta: 1.5MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB.
[2023-12-25 04:44:39,042 INFO  L158              Benchmark]: RCFGBuilder took 385.44ms. Allocated memory is still 185.6MB. Free memory was 129.5MB in the beginning and 117.3MB in the end (delta: 12.2MB). Peak memory consumption was 12.6MB. Max. memory is 8.0GB.
[2023-12-25 04:44:39,042 INFO  L158              Benchmark]: TraceAbstraction took 13266.56ms. Allocated memory was 185.6MB in the beginning and 287.3MB in the end (delta: 101.7MB). Free memory was 116.9MB in the beginning and 234.7MB in the end (delta: -117.9MB). There was no memory consumed. Max. memory is 8.0GB.
[2023-12-25 04:44:39,044 INFO  L338   ainManager$Toolchain]: #######################  End [Toolchain 1] #######################
 --- Results ---
 * Results from de.uni_freiburg.informatik.ultimate.core:
  - StatisticsResult: Toolchain Benchmarks
    Benchmark results are:
 * CDTParser took 0.19ms. Allocated memory is still 185.6MB. Free memory is still 138.6MB. There was no memory consumed. Max. memory is 8.0GB.
 * CACSL2BoogieTranslator took 176.80ms. Allocated memory is still 185.6MB. Free memory was 144.1MB in the beginning and 132.6MB in the end (delta: 11.5MB). Peak memory consumption was 11.5MB. Max. memory is 8.0GB.
 * Boogie Procedure Inliner took 25.97ms. Allocated memory is still 185.6MB. Free memory was 132.6MB in the beginning and 130.9MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB.
 * Boogie Preprocessor took 27.13ms. Allocated memory is still 185.6MB. Free memory was 130.9MB in the beginning and 129.5MB in the end (delta: 1.5MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB.
 * RCFGBuilder took 385.44ms. Allocated memory is still 185.6MB. Free memory was 129.5MB in the beginning and 117.3MB in the end (delta: 12.2MB). Peak memory consumption was 12.6MB. Max. memory is 8.0GB.
 * TraceAbstraction took 13266.56ms. Allocated memory was 185.6MB in the beginning and 287.3MB in the end (delta: 101.7MB). Free memory was 116.9MB in the beginning and 234.7MB in the end (delta: -117.9MB). There was no memory consumed. Max. memory is 8.0GB.
 * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction:
  - StatisticsResult: ErrorAutomatonStatistics
    NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0
  - PositiveResult [Line: 12]: a call to reach_error is unreachable
    For all program executions holds that a call to reach_error is unreachable at this location
  - StatisticsResult: Ultimate Automizer benchmark data
    CFG has 2 procedures, 15 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 13.2s, OverallIterations: 3, TraceHistogramMax: 2, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 2.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 4.9s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 13 SdHoareTripleChecker+Valid, 1.6s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 12 mSDsluCounter, 69 SdHoareTripleChecker+Invalid, 1.5s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 39 mSDsCounter, 2 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 37 IncrementalHoareTripleChecker+Invalid, 39 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 2 mSolverCounterUnsat, 30 mSDtfsCounter, 37 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 44 GetRequests, 31 SyntacticMatches, 1 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 3.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=20occurred in iteration=2, InterpolantAutomatonStates: 12, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 3 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 4 LocationsWithAnnotation, 9 PreInvPairs, 15 NumberOfFragments, 67 HoareAnnotationTreeSize, 9 FormulaSimplifications, 49 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 4 FormulaSimplificationsInter, 24 FormulaSimplificationTreeSizeReductionInter, 4.9s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 5.3s InterpolantComputationTime, 31 NumberOfCodeBlocks, 31 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 42 ConstructedInterpolants, 0 QuantifiedInterpolants, 203 SizeOfPredicates, 2 NumberOfNonLiveVariables, 87 ConjunctsInSsa, 13 ConjunctsInUnsatCore, 4 InterpolantComputations, 3 PerfectInterpolantSequences, 6/8 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available
  - AllSpecificationsHoldResult: All specifications hold
    1 specifications checked. All of them hold
  - InvariantResult [Line: 27]: Loop Invariant
    Derived loop invariant: (0 == ((-((y * (y * (y * 2)))) + -((y * (3 * y)))) % 1))
RESULT: Ultimate proved your program to be correct!
[2023-12-25 04:44:39,077 INFO  L552       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Ended with exit code 0
Received shutdown request...