/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-64bit-Automizer_Bitvector.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/hardware-verification-bv/btor2c-lazyMod.cal10.c


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


This is Ultimate 0.2.4-tmp.fs.bitabs-eval-d9c3e40-m
[2023-12-26 04:38:32,377 INFO  L188        SettingsManager]: Resetting all preferences to default values...
[2023-12-26 04:38:32,436 INFO  L114        SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-64bit-Automizer_Bitvector.epf
[2023-12-26 04:38:32,440 WARN  L101        SettingsManager]: Preference file contains the following unknown settings:
[2023-12-26 04:38:32,441 WARN  L103        SettingsManager]:   * de.uni_freiburg.informatik.ultimate.core.Log level for class
[2023-12-26 04:38:32,467 INFO  L130        SettingsManager]: Preferences different from defaults after loading the file:
[2023-12-26 04:38:32,467 INFO  L151        SettingsManager]: Preferences of UltimateCore differ from their defaults:
[2023-12-26 04:38:32,467 INFO  L153        SettingsManager]:  * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR;
[2023-12-26 04:38:32,468 INFO  L151        SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults:
[2023-12-26 04:38:32,470 INFO  L153        SettingsManager]:  * Use memory slicer=true
[2023-12-26 04:38:32,471 INFO  L151        SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults:
[2023-12-26 04:38:32,471 INFO  L153        SettingsManager]:  * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS
[2023-12-26 04:38:32,471 INFO  L151        SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2023-12-26 04:38:32,472 INFO  L153        SettingsManager]:  * Create parallel compositions if possible=false
[2023-12-26 04:38:32,473 INFO  L153        SettingsManager]:  * Use SBE=true
[2023-12-26 04:38:32,473 INFO  L151        SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2023-12-26 04:38:32,473 INFO  L153        SettingsManager]:  * Pointer base address is valid at dereference=IGNORE
[2023-12-26 04:38:32,473 INFO  L153        SettingsManager]:  * Check division by zero=IGNORE
[2023-12-26 04:38:32,473 INFO  L153        SettingsManager]:  * Pointer to allocated memory at dereference=IGNORE
[2023-12-26 04:38:32,473 INFO  L153        SettingsManager]:  * If two pointers are subtracted or compared they have the same base address=IGNORE
[2023-12-26 04:38:32,474 INFO  L153        SettingsManager]:  * Check array bounds for arrays that are off heap=IGNORE
[2023-12-26 04:38:32,474 INFO  L153        SettingsManager]:  * Adapt memory model on pointer casts if necessary=true
[2023-12-26 04:38:32,474 INFO  L153        SettingsManager]:  * Use bitvectors instead of ints=true
[2023-12-26 04:38:32,474 INFO  L153        SettingsManager]:  * Allow undefined functions=false
[2023-12-26 04:38:32,474 INFO  L153        SettingsManager]:  * Memory model=HoenickeLindenmann_4ByteResolution
[2023-12-26 04:38:32,474 INFO  L153        SettingsManager]:  * Check if freed pointer was valid=false
[2023-12-26 04:38:32,475 INFO  L153        SettingsManager]:  * Use constant arrays=true
[2023-12-26 04:38:32,475 INFO  L151        SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2023-12-26 04:38:32,475 INFO  L153        SettingsManager]:  * Size of a code block=SequenceOfStatements
[2023-12-26 04:38:32,475 INFO  L153        SettingsManager]:  * Only consider context switches at boundaries of atomic blocks=true
[2023-12-26 04:38:32,476 INFO  L153        SettingsManager]:  * SMT solver=External_DefaultMode
[2023-12-26 04:38:32,476 INFO  L153        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2023-12-26 04:38:32,476 INFO  L151        SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2023-12-26 04:38:32,476 INFO  L153        SettingsManager]:  * Compute Interpolants along a Counterexample=FPandBP
[2023-12-26 04:38:32,476 INFO  L153        SettingsManager]:  * Positions where we compute the Hoare Annotation=LoopHeads
[2023-12-26 04:38:32,477 INFO  L153        SettingsManager]:  * Trace refinement strategy=WOLF
[2023-12-26 04:38:32,477 INFO  L153        SettingsManager]:  * Command for external solver=cvc4 --incremental --print-success --lang smt 
[2023-12-26 04:38:32,477 INFO  L153        SettingsManager]:  * Apply one-shot large block encoding in concurrent analysis=false
[2023-12-26 04:38:32,477 INFO  L153        SettingsManager]:  * Automaton type used in concurrency analysis=PETRI_NET
[2023-12-26 04:38:32,477 INFO  L153        SettingsManager]:  * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true
[2023-12-26 04:38:32,477 INFO  L153        SettingsManager]:  * Order on configurations for Petri net unfoldings=DBO
[2023-12-26 04:38:32,477 INFO  L153        SettingsManager]:  * SMT solver=External_ModelsAndUnsatCoreMode
[2023-12-26 04:38:32,477 INFO  L153        SettingsManager]:  * Logic for external solver=AUFBV
[2023-12-26 04:38:32,477 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$1
WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations
WARNING: All illegal access operations will be denied in a future release
[2023-12-26 04:38:32,646 INFO  L75    nceAwareModelManager]: Repository-Root is: /tmp
[2023-12-26 04:38:32,658 INFO  L261   ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2023-12-26 04:38:32,660 INFO  L217   ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2023-12-26 04:38:32,661 INFO  L270        PluginConnector]: Initializing CDTParser...
[2023-12-26 04:38:32,661 INFO  L274        PluginConnector]: CDTParser initialized
[2023-12-26 04:38:32,662 INFO  L431   ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/hardware-verification-bv/btor2c-lazyMod.cal10.c
[2023-12-26 04:38:33,656 INFO  L533              CDTParser]: Created temporary CDT project at NULL
[2023-12-26 04:38:33,937 INFO  L384              CDTParser]: Found 1 translation units.
[2023-12-26 04:38:33,938 INFO  L180              CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/hardware-verification-bv/btor2c-lazyMod.cal10.c
[2023-12-26 04:38:33,952 INFO  L427              CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6af42be84/6fb26e2a118c4f099bd60dd5dacc3c99/FLAG25b14ddf4
[2023-12-26 04:38:33,961 INFO  L435              CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6af42be84/6fb26e2a118c4f099bd60dd5dacc3c99
[2023-12-26 04:38:33,963 INFO  L299   ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2023-12-26 04:38:33,964 INFO  L133        ToolchainWalker]: Walking toolchain with 5 elements.
[2023-12-26 04:38:33,964 INFO  L112        PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2023-12-26 04:38:33,965 INFO  L270        PluginConnector]: Initializing CACSL2BoogieTranslator...
[2023-12-26 04:38:33,971 INFO  L274        PluginConnector]: CACSL2BoogieTranslator initialized
[2023-12-26 04:38:33,971 INFO  L184        PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.12 04:38:33" (1/1) ...
[2023-12-26 04:38:33,972 INFO  L204        PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@723872a3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.12 04:38:33, skipping insertion in model container
[2023-12-26 04:38:33,972 INFO  L184        PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.12 04:38:33" (1/1) ...
[2023-12-26 04:38:34,026 INFO  L177         MainTranslator]: Built tables and reachable declarations
[2023-12-26 04:38:34,164 WARN  L239   ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/hardware-verification-bv/btor2c-lazyMod.cal10.c[1245,1258]
[2023-12-26 04:38:34,454 INFO  L209          PostProcessor]: Analyzing one entry point: main
[2023-12-26 04:38:34,469 INFO  L202         MainTranslator]: Completed pre-run
[2023-12-26 04:38:34,477 WARN  L239   ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/hardware-verification-bv/btor2c-lazyMod.cal10.c[1245,1258]
[2023-12-26 04:38:34,598 INFO  L209          PostProcessor]: Analyzing one entry point: main
[2023-12-26 04:38:34,609 INFO  L206         MainTranslator]: Completed translation
[2023-12-26 04:38:34,610 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.12 04:38:34 WrapperNode
[2023-12-26 04:38:34,610 INFO  L131        PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2023-12-26 04:38:34,611 INFO  L112        PluginConnector]: ------------------------Boogie Procedure Inliner----------------------------
[2023-12-26 04:38:34,611 INFO  L270        PluginConnector]: Initializing Boogie Procedure Inliner...
[2023-12-26 04:38:34,611 INFO  L274        PluginConnector]: Boogie Procedure Inliner initialized
[2023-12-26 04:38:34,619 INFO  L184        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.12 04:38:34" (1/1) ...
[2023-12-26 04:38:34,649 INFO  L184        PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.12 04:38:34" (1/1) ...
[2023-12-26 04:38:34,723 INFO  L138                Inliner]: procedures = 17, calls = 16, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 1488
[2023-12-26 04:38:34,724 INFO  L131        PluginConnector]: ------------------------ END Boogie Procedure Inliner----------------------------
[2023-12-26 04:38:34,724 INFO  L112        PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2023-12-26 04:38:34,724 INFO  L270        PluginConnector]: Initializing Boogie Preprocessor...
[2023-12-26 04:38:34,724 INFO  L274        PluginConnector]: Boogie Preprocessor initialized
[2023-12-26 04:38:34,732 INFO  L184        PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.12 04:38:34" (1/1) ...
[2023-12-26 04:38:34,733 INFO  L184        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.12 04:38:34" (1/1) ...
[2023-12-26 04:38:34,743 INFO  L184        PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.12 04:38:34" (1/1) ...
[2023-12-26 04:38:34,775 INFO  L175           MemorySlicer]: Split 10 memory accesses to 2 slices as follows [2, 8]. 80 percent of accesses are in the largest equivalence class. The 10 initializations are split as follows [2, 8]. The 0 writes are split as follows [0, 0].
[2023-12-26 04:38:34,775 INFO  L184        PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.12 04:38:34" (1/1) ...
[2023-12-26 04:38:34,775 INFO  L184        PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.12 04:38:34" (1/1) ...
[2023-12-26 04:38:34,810 INFO  L184        PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.12 04:38:34" (1/1) ...
[2023-12-26 04:38:34,829 INFO  L184        PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.12 04:38:34" (1/1) ...
[2023-12-26 04:38:34,833 INFO  L184        PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.12 04:38:34" (1/1) ...
[2023-12-26 04:38:34,837 INFO  L184        PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.12 04:38:34" (1/1) ...
[2023-12-26 04:38:34,870 INFO  L131        PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2023-12-26 04:38:34,871 INFO  L112        PluginConnector]: ------------------------RCFGBuilder----------------------------
[2023-12-26 04:38:34,871 INFO  L270        PluginConnector]: Initializing RCFGBuilder...
[2023-12-26 04:38:34,871 INFO  L274        PluginConnector]: RCFGBuilder initialized
[2023-12-26 04:38:34,871 INFO  L184        PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.12 04:38:34" (1/1) ...
[2023-12-26 04:38:34,875 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2023-12-26 04:38:34,882 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2023-12-26 04:38:34,909 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)
[2023-12-26 04:38:34,914 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
[2023-12-26 04:38:34,931 INFO  L130     BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit
[2023-12-26 04:38:34,931 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0
[2023-12-26 04:38:34,931 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#1
[2023-12-26 04:38:34,932 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2023-12-26 04:38:34,932 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2023-12-26 04:38:35,144 INFO  L241             CfgBuilder]: Building ICFG
[2023-12-26 04:38:35,146 INFO  L267             CfgBuilder]: Building CFG for each procedure with an implementation
[2023-12-26 04:38:36,516 INFO  L282             CfgBuilder]: Performing block encoding
[2023-12-26 04:38:36,564 INFO  L304             CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2023-12-26 04:38:36,565 INFO  L309             CfgBuilder]: Removed 1 assume(true) statements.
[2023-12-26 04:38:36,565 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.12 04:38:36 BoogieIcfgContainer
[2023-12-26 04:38:36,565 INFO  L131        PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2023-12-26 04:38:36,567 INFO  L112        PluginConnector]: ------------------------TraceAbstraction----------------------------
[2023-12-26 04:38:36,567 INFO  L270        PluginConnector]: Initializing TraceAbstraction...
[2023-12-26 04:38:36,569 INFO  L274        PluginConnector]: TraceAbstraction initialized
[2023-12-26 04:38:36,569 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 26.12 04:38:33" (1/3) ...
[2023-12-26 04:38:36,570 INFO  L204        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2ef3a95e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.12 04:38:36, skipping insertion in model container
[2023-12-26 04:38:36,570 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.12 04:38:34" (2/3) ...
[2023-12-26 04:38:36,570 INFO  L204        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2ef3a95e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.12 04:38:36, skipping insertion in model container
[2023-12-26 04:38:36,571 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.12 04:38:36" (3/3) ...
[2023-12-26 04:38:36,571 INFO  L112   eAbstractionObserver]: Analyzing ICFG btor2c-lazyMod.cal10.c
[2023-12-26 04:38:36,583 INFO  L204   ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2023-12-26 04:38:36,584 INFO  L163   ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations.
[2023-12-26 04:38:36,644 INFO  L356      AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ========
[2023-12-26 04:38:36,649 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;@59172880, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms]
[2023-12-26 04:38:36,649 INFO  L358      AbstractCegarLoop]: Starting to check reachability of 1 error locations.
[2023-12-26 04:38:36,653 INFO  L276                IsEmpty]: Start isEmpty. Operand  has 8 states, 6 states have (on average 1.6666666666666667) internal successors, (10), 7 states have internal predecessors, (10), 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)
[2023-12-26 04:38:36,656 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 5
[2023-12-26 04:38:36,658 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-26 04:38:36,658 INFO  L195           NwaCegarLoop]: trace histogram [1, 1, 1, 1]
[2023-12-26 04:38:36,659 INFO  L420      AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-26 04:38:36,663 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-26 04:38:36,663 INFO  L85        PathProgramCache]: Analyzing trace with hash 1827279, now seen corresponding path program 1 times
[2023-12-26 04:38:36,674 INFO  L118   FreeRefinementEngine]: Executing refinement strategy WOLF
[2023-12-26 04:38:36,675 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [863740222]
[2023-12-26 04:38:36,675 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-26 04:38:36,675 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
[2023-12-26 04:38:36,675 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat
[2023-12-26 04:38:36,700 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)
[2023-12-26 04:38:36,723 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
[2023-12-26 04:38:37,392 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-26 04:38:37,420 INFO  L262         TraceCheckSpWp]: Trace formula consists of 827 conjuncts, 16 conjunts are in the unsatisfiable core
[2023-12-26 04:38:37,430 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-12-26 04:38:37,560 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2023-12-26 04:38:37,560 INFO  L323         TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2023-12-26 04:38:37,561 INFO  L136   FreeRefinementEngine]: Strategy WOLF found an infeasible trace
[2023-12-26 04:38:37,561 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [863740222]
[2023-12-26 04:38:37,562 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleMathsat [863740222] provided 1 perfect and 0 imperfect interpolant sequences
[2023-12-26 04:38:37,562 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-12-26 04:38:37,562 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2023-12-26 04:38:37,563 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [122994953]
[2023-12-26 04:38:37,564 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-26 04:38:37,567 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2023-12-26 04:38:37,567 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF
[2023-12-26 04:38:37,589 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2023-12-26 04:38:37,590 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2023-12-26 04:38:37,591 INFO  L87              Difference]: Start difference. First operand  has 8 states, 6 states have (on average 1.6666666666666667) internal successors, (10), 7 states have internal predecessors, (10), 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) Second operand  has 4 states, 4 states have (on average 1.0) internal successors, (4), 3 states have internal predecessors, (4), 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)
[2023-12-26 04:38:37,950 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-26 04:38:37,950 INFO  L93              Difference]: Finished difference Result 16 states and 24 transitions.
[2023-12-26 04:38:37,951 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2023-12-26 04:38:37,952 INFO  L78                 Accepts]: Start accepts. Automaton has  has 4 states, 4 states have (on average 1.0) internal successors, (4), 3 states have internal predecessors, (4), 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) Word has length 4
[2023-12-26 04:38:37,952 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-26 04:38:37,956 INFO  L225             Difference]: With dead ends: 16
[2023-12-26 04:38:37,956 INFO  L226             Difference]: Without dead ends: 9
[2023-12-26 04:38:37,959 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20
[2023-12-26 04:38:37,963 INFO  L413           NwaCegarLoop]: 2 mSDtfsCounter, 3 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 6 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time
[2023-12-26 04:38:37,980 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 6 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time]
[2023-12-26 04:38:37,991 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 9 states.
[2023-12-26 04:38:37,998 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 9 to 8.
[2023-12-26 04:38:37,998 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 8 states, 7 states have (on average 1.1428571428571428) internal successors, (8), 7 states have internal predecessors, (8), 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)
[2023-12-26 04:38:37,999 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 8 transitions.
[2023-12-26 04:38:38,000 INFO  L78                 Accepts]: Start accepts. Automaton has 8 states and 8 transitions. Word has length 4
[2023-12-26 04:38:38,000 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-26 04:38:38,000 INFO  L495      AbstractCegarLoop]: Abstraction has 8 states and 8 transitions.
[2023-12-26 04:38:38,000 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 4 states, 4 states have (on average 1.0) internal successors, (4), 3 states have internal predecessors, (4), 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)
[2023-12-26 04:38:38,000 INFO  L276                IsEmpty]: Start isEmpty. Operand 8 states and 8 transitions.
[2023-12-26 04:38:38,000 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 8
[2023-12-26 04:38:38,000 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-26 04:38:38,001 INFO  L195           NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1]
[2023-12-26 04:38:38,010 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
[2023-12-26 04:38:38,207 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
[2023-12-26 04:38:38,208 INFO  L420      AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-26 04:38:38,208 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-26 04:38:38,208 INFO  L85        PathProgramCache]: Analyzing trace with hash -1393329571, now seen corresponding path program 1 times
[2023-12-26 04:38:38,210 INFO  L118   FreeRefinementEngine]: Executing refinement strategy WOLF
[2023-12-26 04:38:38,210 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1516789451]
[2023-12-26 04:38:38,210 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-26 04:38:38,211 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
[2023-12-26 04:38:38,211 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat
[2023-12-26 04:38:38,214 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)
[2023-12-26 04:38:38,220 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
[2023-12-26 04:38:45,838 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-26 04:38:45,884 INFO  L262         TraceCheckSpWp]: Trace formula consists of 1960 conjuncts, 97 conjunts are in the unsatisfiable core
[2023-12-26 04:38:45,894 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-12-26 04:38:46,942 INFO  L134       CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2023-12-26 04:38:46,942 INFO  L327         TraceCheckSpWp]: Computing backward predicates...
[2023-12-26 04:39:08,582 WARN  L293               SmtUtils]: Spent 6.06s on a formula simplification that was a NOOP. DAG size: 622 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate)
[2023-12-26 04:39:45,452 WARN  L293               SmtUtils]: Spent 12.75s on a formula simplification that was a NOOP. DAG size: 652 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate)
[2023-12-26 04:40:50,126 INFO  L134       CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2023-12-26 04:40:50,127 INFO  L136   FreeRefinementEngine]: Strategy WOLF found an infeasible trace
[2023-12-26 04:40:50,131 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1516789451]
[2023-12-26 04:40:50,135 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleMathsat [1516789451] provided 0 perfect and 2 imperfect interpolant sequences
[2023-12-26 04:40:50,135 INFO  L185   FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences.
[2023-12-26 04:40:50,135 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 7
[2023-12-26 04:40:50,136 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1457185153]
[2023-12-26 04:40:50,139 INFO  L85    oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton
[2023-12-26 04:40:50,139 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 8 states
[2023-12-26 04:40:50,140 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF
[2023-12-26 04:40:50,140 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2023-12-26 04:40:50,141 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56
[2023-12-26 04:40:50,141 INFO  L87              Difference]: Start difference. First operand 8 states and 8 transitions. Second operand  has 8 states, 8 states have (on average 1.625) internal successors, (13), 7 states have internal predecessors, (13), 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)
[2023-12-26 04:40:50,839 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-26 04:40:50,839 INFO  L93              Difference]: Finished difference Result 14 states and 14 transitions.
[2023-12-26 04:40:50,839 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. 
[2023-12-26 04:40:50,840 INFO  L78                 Accepts]: Start accepts. Automaton has  has 8 states, 8 states have (on average 1.625) internal successors, (13), 7 states have internal predecessors, (13), 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) Word has length 7
[2023-12-26 04:40:50,840 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-26 04:40:50,840 INFO  L225             Difference]: With dead ends: 14
[2023-12-26 04:40:50,840 INFO  L226             Difference]: Without dead ends: 12
[2023-12-26 04:40:50,841 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 19.4s TimeCoverageRelationStatistics Valid=38, Invalid=72, Unknown=0, NotChecked=0, Total=110
[2023-12-26 04:40:50,841 INFO  L413           NwaCegarLoop]: 2 mSDtfsCounter, 10 mSDsluCounter, 9 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10 SdHoareTripleChecker+Valid, 11 SdHoareTripleChecker+Invalid, 24 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 21 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time
[2023-12-26 04:40:50,842 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [10 Valid, 11 Invalid, 24 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time]
[2023-12-26 04:40:50,842 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 12 states.
[2023-12-26 04:40:50,843 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 12 to 11.
[2023-12-26 04:40:50,844 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 11 states, 10 states have (on average 1.1) internal successors, (11), 10 states have internal predecessors, (11), 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)
[2023-12-26 04:40:50,844 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 11 transitions.
[2023-12-26 04:40:50,844 INFO  L78                 Accepts]: Start accepts. Automaton has 11 states and 11 transitions. Word has length 7
[2023-12-26 04:40:50,844 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-26 04:40:50,844 INFO  L495      AbstractCegarLoop]: Abstraction has 11 states and 11 transitions.
[2023-12-26 04:40:50,844 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 8 states, 8 states have (on average 1.625) internal successors, (13), 7 states have internal predecessors, (13), 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)
[2023-12-26 04:40:50,844 INFO  L276                IsEmpty]: Start isEmpty. Operand 11 states and 11 transitions.
[2023-12-26 04:40:50,845 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 11
[2023-12-26 04:40:50,845 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-26 04:40:50,845 INFO  L195           NwaCegarLoop]: trace histogram [3, 2, 2, 1, 1, 1]
[2023-12-26 04:40:50,860 INFO  L552       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Ended with exit code 0
[2023-12-26 04:40:51,059 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
[2023-12-26 04:40:51,059 INFO  L420      AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-26 04:40:51,060 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-26 04:40:51,060 INFO  L85        PathProgramCache]: Analyzing trace with hash -2112524529, now seen corresponding path program 2 times
[2023-12-26 04:40:51,063 INFO  L118   FreeRefinementEngine]: Executing refinement strategy WOLF
[2023-12-26 04:40:51,063 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1633122824]
[2023-12-26 04:40:51,063 INFO  L93    rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1
[2023-12-26 04:40:51,063 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
[2023-12-26 04:40:51,063 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat
[2023-12-26 04:40:51,064 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)
[2023-12-26 04:40:51,070 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
[2023-12-26 04:41:12,266 INFO  L228   tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s)
[2023-12-26 04:41:12,267 INFO  L229   tOrderPrioritization]: Conjunction of SSA is unsat
[2023-12-26 04:41:12,377 INFO  L262         TraceCheckSpWp]: Trace formula consists of 3093 conjuncts, 534 conjunts are in the unsatisfiable core
[2023-12-26 04:41:12,398 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-12-26 04:46:54,058 WARN  L293               SmtUtils]: Spent 5.43s on a formula simplification. DAG size of input: 724 DAG size of output: 724 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate)
[2023-12-26 04:47:05,558 INFO  L134       CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2023-12-26 04:47:05,558 INFO  L327         TraceCheckSpWp]: Computing backward predicates...
[2023-12-26 04:47:29,631 WARN  L293               SmtUtils]: Spent 6.05s on a formula simplification that was a NOOP. DAG size: 759 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate)
[2023-12-26 04:49:22,486 WARN  L249               Executor]: External (MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1) with exit command (exit)) stderr output: (error "out of memory")

[2023-12-26 04:49:22,488 INFO  L136   FreeRefinementEngine]: Strategy WOLF found an infeasible trace
[2023-12-26 04:49:22,488 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1633122824]
[2023-12-26 04:49:22,488 WARN  L320   FreeRefinementEngine]: Global settings require throwing the following exception
[2023-12-26 04:49:22,489 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 101
[2023-12-26 04:49:22,517 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
[2023-12-26 04:49:22,689 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
[2023-12-26 04:49:22,690 FATAL L?                        ?]: An unrecoverable error occured during an interaction with an SMT solver:
de.uni_freiburg.informatik.ultimate.logic.SMTLIBException: External (MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1) with exit command (exit)) Received EOF on stdin. stderr output: (error "out of memory")

	at de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.parse(Executor.java:262)
	at de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.parseSuccess(Executor.java:277)
	at de.uni_freiburg.informatik.ultimate.smtsolver.external.Scriptor.assertTerm(Scriptor.java:147)
	at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.arrays.DiffWrapperScript.assertTerm(DiffWrapperScript.java:111)
	at de.uni_freiburg.informatik.ultimate.logic.WrapperScript.assertTerm(WrapperScript.java:158)
	at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.SimplifyDDA2.simplify(SimplifyDDA2.java:495)
	at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.SmtUtils.simplify(SmtUtils.java:252)
	at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.SmtUtils.simplifyWithStatistics(SmtUtils.java:324)
	at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify(QuantifierPusher.java:731)
	at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPushTermWalker.convert(QuantifierPushTermWalker.java:140)
	at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPushTermWalker.convert(QuantifierPushTermWalker.java:1)
	at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.TermContextTransformationEngine$ApplicationTermTask.doStep(TermContextTransformationEngine.java:209)
	at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.TermContextTransformationEngine.transform(TermContextTransformationEngine.java:100)
	at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.TermContextTransformationEngine.transform(TermContextTransformationEngine.java:84)
	at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPushTermWalker.eliminate(QuantifierPushTermWalker.java:297)
	at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.pushInner(QuantifierPusher.java:275)
	at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPushTermWalker.convert(QuantifierPushTermWalker.java:194)
	at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPushTermWalker.convert(QuantifierPushTermWalker.java:1)
	at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.TermContextTransformationEngine$ApplicationTermTask.doStep(TermContextTransformationEngine.java:209)
	at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.TermContextTransformationEngine.transform(TermContextTransformationEngine.java:100)
	at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.TermContextTransformationEngine.transform(TermContextTransformationEngine.java:84)
	at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPushTermWalker.eliminate(QuantifierPushTermWalker.java:297)
	at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPushUtilsForSubsetPush.pushMinionEliminatees(QuantifierPushUtilsForSubsetPush.java:255)
	at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPushUtilsForSubsetPush.sequentialSubsetPush(QuantifierPushUtilsForSubsetPush.java:151)
	at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.tryToPushOverDualFiniteConnective(QuantifierPusher.java:338)
	at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPushTermWalker.convert(QuantifierPushTermWalker.java:189)
	at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPushTermWalker.convert(QuantifierPushTermWalker.java:1)
	at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.TermContextTransformationEngine.transform(TermContextTransformationEngine.java:88)
	at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.TermContextTransformationEngine.transform(TermContextTransformationEngine.java:84)
	at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPushTermWalker.eliminate(QuantifierPushTermWalker.java:297)
	at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPushTermWalker.eliminate(QuantifierPushTermWalker.java:283)
	at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.PartialQuantifierElimination.eliminate(PartialQuantifierElimination.java:51)
	at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.predicates.IterativePredicateTransformer$QuantifierEliminationPostprocessor.postprocess(IterativePredicateTransformer.java:238)
	at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.predicates.IterativePredicateTransformer.applyPostprocessors(IterativePredicateTransformer.java:420)
	at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.predicates.IterativePredicateTransformer.computeBackwardSequence(IterativePredicateTransformer.java:399)
	at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.predicates.IterativePredicateTransformer.computeWeakestPreconditionSequence(IterativePredicateTransformer.java:271)
	at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheckSpWp.computeInterpolantsUsingUnsatCore(TraceCheckSpWp.java:341)
	at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheckSpWp.computeInterpolants(TraceCheckSpWp.java:184)
	at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheckSpWp.<init>(TraceCheckSpWp.java:162)
	at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleSpWp.construct(IpTcStrategyModuleSpWp.java:110)
	at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleSpWp.construct(IpTcStrategyModuleSpWp.java:1)
	at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getOrConstruct(IpTcStrategyModuleBase.java:101)
	at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.isCorrect(IpTcStrategyModuleBase.java:57)
	at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.checkFeasibility(AutomatonFreeRefinementEngine.java:210)
	at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.executeStrategy(AutomatonFreeRefinementEngine.java:121)
	at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.<init>(AutomatonFreeRefinementEngine.java:85)
	at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.<init>(TraceAbstractionRefinementEngine.java:82)
	at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.isCounterexampleFeasible(BasicCegarLoop.java:337)
	at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:431)
	at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.startCegar(AbstractCegarLoop.java:366)
	at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.runCegar(AbstractCegarLoop.java:348)
	at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.executeCegarLoop(TraceAbstractionStarter.java:416)
	at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseProgram(TraceAbstractionStarter.java:303)
	at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseSequentialProgram(TraceAbstractionStarter.java:263)
	at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:176)
	at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.<init>(TraceAbstractionStarter.java:155)
	at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:124)
	at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:167)
	at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:150)
	at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:127)
	at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:233)
	at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:227)
	at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:144)
	at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:106)
	at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:319)
	at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145)
	at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63)
Caused by: de.uni_freiburg.informatik.ultimate.logic.SMTLIBException: EOF
	at de.uni_freiburg.informatik.ultimate.smtsolver.external.Parser$Action$.CUP$do_action(Parser.java:1518)
	at de.uni_freiburg.informatik.ultimate.smtsolver.external.Parser.do_action(Parser.java:701)
	at com.github.jhoenicke.javacup.runtime.LRParser.parse(LRParser.java:383)
	at de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.parse(Executor.java:258)
	... 66 more
[2023-12-26 04:49:22,694 INFO  L158              Benchmark]: Toolchain (without parser) took 648729.76ms. Allocated memory was 199.2MB in the beginning and 1.5GB in the end (delta: 1.3GB). Free memory was 143.8MB in the beginning and 1.1GB in the end (delta: -997.1MB). Peak memory consumption was 913.8MB. Max. memory is 8.0GB.
[2023-12-26 04:49:22,694 INFO  L158              Benchmark]: CDTParser took 0.08ms. Allocated memory is still 199.2MB. Free memory is still 147.1MB. There was no memory consumed. Max. memory is 8.0GB.
[2023-12-26 04:49:22,694 INFO  L158              Benchmark]: CACSL2BoogieTranslator took 645.66ms. Allocated memory is still 199.2MB. Free memory was 143.5MB in the beginning and 139.4MB in the end (delta: 4.1MB). Peak memory consumption was 30.4MB. Max. memory is 8.0GB.
[2023-12-26 04:49:22,694 INFO  L158              Benchmark]: Boogie Procedure Inliner took 112.89ms. Allocated memory is still 199.2MB. Free memory was 139.4MB in the beginning and 127.4MB in the end (delta: 12.1MB). Peak memory consumption was 11.5MB. Max. memory is 8.0GB.
[2023-12-26 04:49:22,694 INFO  L158              Benchmark]: Boogie Preprocessor took 146.04ms. Allocated memory is still 199.2MB. Free memory was 127.4MB in the beginning and 113.2MB in the end (delta: 14.2MB). Peak memory consumption was 14.7MB. Max. memory is 8.0GB.
[2023-12-26 04:49:22,695 INFO  L158              Benchmark]: RCFGBuilder took 1694.76ms. Allocated memory was 199.2MB in the beginning and 290.5MB in the end (delta: 91.2MB). Free memory was 113.2MB in the beginning and 216.9MB in the end (delta: -103.7MB). Peak memory consumption was 119.2MB. Max. memory is 8.0GB.
[2023-12-26 04:49:22,695 INFO  L158              Benchmark]: TraceAbstraction took 646126.19ms. Allocated memory was 290.5MB in the beginning and 1.5GB in the end (delta: 1.2GB). Free memory was 215.8MB in the beginning and 1.1GB in the end (delta: -925.1MB). Peak memory consumption was 894.3MB. Max. memory is 8.0GB.
[2023-12-26 04:49:22,696 INFO  L338   ainManager$Toolchain]: #######################  End [Toolchain 1] #######################
 --- Results ---
 * Results from de.uni_freiburg.informatik.ultimate.core:
  - StatisticsResult: Toolchain Benchmarks
    Benchmark results are:
 * CDTParser took 0.08ms. Allocated memory is still 199.2MB. Free memory is still 147.1MB. There was no memory consumed. Max. memory is 8.0GB.
 * CACSL2BoogieTranslator took 645.66ms. Allocated memory is still 199.2MB. Free memory was 143.5MB in the beginning and 139.4MB in the end (delta: 4.1MB). Peak memory consumption was 30.4MB. Max. memory is 8.0GB.
 * Boogie Procedure Inliner took 112.89ms. Allocated memory is still 199.2MB. Free memory was 139.4MB in the beginning and 127.4MB in the end (delta: 12.1MB). Peak memory consumption was 11.5MB. Max. memory is 8.0GB.
 * Boogie Preprocessor took 146.04ms. Allocated memory is still 199.2MB. Free memory was 127.4MB in the beginning and 113.2MB in the end (delta: 14.2MB). Peak memory consumption was 14.7MB. Max. memory is 8.0GB.
 * RCFGBuilder took 1694.76ms. Allocated memory was 199.2MB in the beginning and 290.5MB in the end (delta: 91.2MB). Free memory was 113.2MB in the beginning and 216.9MB in the end (delta: -103.7MB). Peak memory consumption was 119.2MB. Max. memory is 8.0GB.
 * TraceAbstraction took 646126.19ms. Allocated memory was 290.5MB in the beginning and 1.5GB in the end (delta: 1.2GB). Free memory was 215.8MB in the beginning and 1.1GB in the end (delta: -925.1MB). Peak memory consumption was 894.3MB. Max. memory is 8.0GB.
 * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction:
  - ExceptionOrErrorResult: SMTLIBException: External (MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1) with exit command (exit)) Received EOF on stdin. stderr output: (error "out of memory")

    de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMTLIBException: External (MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1) with exit command (exit)) Received EOF on stdin. stderr output: (error "out of memory")
: de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.parse(Executor.java:262)
RESULT: Ultimate could not prove your program: Toolchain returned no result.
Received shutdown request...