/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_Default.epf --cacsl2boogietranslator.use.bitabs.translation true -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/combinations/gcd_4+newton_2_7.i


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


This is Ultimate 0.2.4-tmp.fs.bitabs-eval-d9c3e40-m
[2023-12-18 23:01:59,430 INFO  L188        SettingsManager]: Resetting all preferences to default values...
[2023-12-18 23:01:59,507 INFO  L114        SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf
[2023-12-18 23:01:59,511 WARN  L101        SettingsManager]: Preference file contains the following unknown settings:
[2023-12-18 23:01:59,512 WARN  L103        SettingsManager]:   * de.uni_freiburg.informatik.ultimate.core.Log level for class
[2023-12-18 23:01:59,538 INFO  L130        SettingsManager]: Preferences different from defaults after loading the file:
[2023-12-18 23:01:59,539 INFO  L151        SettingsManager]: Preferences of UltimateCore differ from their defaults:
[2023-12-18 23:01:59,539 INFO  L153        SettingsManager]:  * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR;
[2023-12-18 23:01:59,540 INFO  L151        SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults:
[2023-12-18 23:01:59,543 INFO  L153        SettingsManager]:  * Use memory slicer=true
[2023-12-18 23:01:59,543 INFO  L151        SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults:
[2023-12-18 23:01:59,544 INFO  L153        SettingsManager]:  * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS
[2023-12-18 23:01:59,544 INFO  L151        SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2023-12-18 23:01:59,545 INFO  L153        SettingsManager]:  * Create parallel compositions if possible=false
[2023-12-18 23:01:59,546 INFO  L153        SettingsManager]:  * Use SBE=true
[2023-12-18 23:01:59,546 INFO  L151        SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2023-12-18 23:01:59,546 INFO  L153        SettingsManager]:  * Pointer base address is valid at dereference=IGNORE
[2023-12-18 23:01:59,546 INFO  L153        SettingsManager]:  * sizeof long=4
[2023-12-18 23:01:59,546 INFO  L153        SettingsManager]:  * Overapproximate operations on floating types=true
[2023-12-18 23:01:59,547 INFO  L153        SettingsManager]:  * sizeof POINTER=4
[2023-12-18 23:01:59,547 INFO  L153        SettingsManager]:  * Check division by zero=IGNORE
[2023-12-18 23:01:59,547 INFO  L153        SettingsManager]:  * Pointer to allocated memory at dereference=IGNORE
[2023-12-18 23:01:59,547 INFO  L153        SettingsManager]:  * If two pointers are subtracted or compared they have the same base address=IGNORE
[2023-12-18 23:01:59,548 INFO  L153        SettingsManager]:  * Check array bounds for arrays that are off heap=IGNORE
[2023-12-18 23:01:59,548 INFO  L153        SettingsManager]:  * Allow undefined functions=false
[2023-12-18 23:01:59,548 INFO  L153        SettingsManager]:  * sizeof long double=12
[2023-12-18 23:01:59,548 INFO  L153        SettingsManager]:  * Check if freed pointer was valid=false
[2023-12-18 23:01:59,548 INFO  L153        SettingsManager]:  * Use constant arrays=true
[2023-12-18 23:01:59,549 INFO  L151        SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2023-12-18 23:01:59,549 INFO  L153        SettingsManager]:  * Size of a code block=SequenceOfStatements
[2023-12-18 23:01:59,550 INFO  L153        SettingsManager]:  * Only consider context switches at boundaries of atomic blocks=true
[2023-12-18 23:01:59,550 INFO  L153        SettingsManager]:  * SMT solver=External_DefaultMode
[2023-12-18 23:01:59,550 INFO  L153        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2023-12-18 23:01:59,550 INFO  L151        SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2023-12-18 23:01:59,551 INFO  L153        SettingsManager]:  * Compute Interpolants along a Counterexample=FPandBP
[2023-12-18 23:01:59,551 INFO  L153        SettingsManager]:  * Positions where we compute the Hoare Annotation=LoopHeads
[2023-12-18 23:01:59,551 INFO  L153        SettingsManager]:  * Trace refinement strategy=CAMEL
[2023-12-18 23:01:59,551 INFO  L153        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2023-12-18 23:01:59,551 INFO  L153        SettingsManager]:  * Apply one-shot large block encoding in concurrent analysis=false
[2023-12-18 23:01:59,551 INFO  L153        SettingsManager]:  * Automaton type used in concurrency analysis=PETRI_NET
[2023-12-18 23:01:59,551 INFO  L153        SettingsManager]:  * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true
[2023-12-18 23:01:59,552 INFO  L153        SettingsManager]:  * Order on configurations for Petri net unfoldings=DBO
[2023-12-18 23:01:59,552 INFO  L153        SettingsManager]:  * SMT solver=External_ModelsAndUnsatCoreMode
[2023-12-18 23:01:59,552 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$1
WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations
WARNING: All illegal access operations will be denied in a future release
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Use bitabs translation -> true
[2023-12-18 23:01:59,771 INFO  L75    nceAwareModelManager]: Repository-Root is: /tmp
[2023-12-18 23:01:59,794 INFO  L261   ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2023-12-18 23:01:59,796 INFO  L217   ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2023-12-18 23:01:59,797 INFO  L270        PluginConnector]: Initializing CDTParser...
[2023-12-18 23:01:59,797 INFO  L274        PluginConnector]: CDTParser initialized
[2023-12-18 23:01:59,798 INFO  L431   ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/combinations/gcd_4+newton_2_7.i
[2023-12-18 23:02:00,990 INFO  L533              CDTParser]: Created temporary CDT project at NULL
[2023-12-18 23:02:01,166 INFO  L384              CDTParser]: Found 1 translation units.
[2023-12-18 23:02:01,167 INFO  L180              CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/combinations/gcd_4+newton_2_7.i
[2023-12-18 23:02:01,173 INFO  L427              CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7be6d53ea/8a14c82c181648c79359ceadb194e584/FLAG0ac718b68
[2023-12-18 23:02:01,185 INFO  L435              CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7be6d53ea/8a14c82c181648c79359ceadb194e584
[2023-12-18 23:02:01,186 INFO  L299   ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2023-12-18 23:02:01,187 INFO  L133        ToolchainWalker]: Walking toolchain with 5 elements.
[2023-12-18 23:02:01,188 INFO  L112        PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2023-12-18 23:02:01,188 INFO  L270        PluginConnector]: Initializing CACSL2BoogieTranslator...
[2023-12-18 23:02:01,198 INFO  L274        PluginConnector]: CACSL2BoogieTranslator initialized
[2023-12-18 23:02:01,198 INFO  L184        PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.12 11:02:01" (1/1) ...
[2023-12-18 23:02:01,199 INFO  L204        PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4d3691e3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 11:02:01, skipping insertion in model container
[2023-12-18 23:02:01,199 INFO  L184        PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.12 11:02:01" (1/1) ...
[2023-12-18 23:02:01,222 INFO  L177         MainTranslator]: Built tables and reachable declarations
[2023-12-18 23:02:01,348 WARN  L239   ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/combinations/gcd_4+newton_2_7.i[1224,1237]
[2023-12-18 23:02:01,379 WARN  L239   ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/combinations/gcd_4+newton_2_7.i[2827,2840]
[2023-12-18 23:02:01,381 INFO  L209          PostProcessor]: Analyzing one entry point: main
[2023-12-18 23:02:01,389 INFO  L202         MainTranslator]: Completed pre-run
[2023-12-18 23:02:01,399 WARN  L239   ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/combinations/gcd_4+newton_2_7.i[1224,1237]
[2023-12-18 23:02:01,408 WARN  L239   ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/combinations/gcd_4+newton_2_7.i[2827,2840]
[2023-12-18 23:02:01,409 INFO  L209          PostProcessor]: Analyzing one entry point: main
[2023-12-18 23:02:01,423 INFO  L206         MainTranslator]: Completed translation
[2023-12-18 23:02:01,424 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 11:02:01 WrapperNode
[2023-12-18 23:02:01,424 INFO  L131        PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2023-12-18 23:02:01,426 INFO  L112        PluginConnector]: ------------------------Boogie Procedure Inliner----------------------------
[2023-12-18 23:02:01,426 INFO  L270        PluginConnector]: Initializing Boogie Procedure Inliner...
[2023-12-18 23:02:01,426 INFO  L274        PluginConnector]: Boogie Procedure Inliner initialized
[2023-12-18 23:02:01,432 INFO  L184        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 11:02:01" (1/1) ...
[2023-12-18 23:02:01,439 INFO  L184        PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 11:02:01" (1/1) ...
[2023-12-18 23:02:01,459 INFO  L138                Inliner]: procedures = 27, calls = 26, calls flagged for inlining = 6, calls inlined = 6, statements flattened = 79
[2023-12-18 23:02:01,460 INFO  L131        PluginConnector]: ------------------------ END Boogie Procedure Inliner----------------------------
[2023-12-18 23:02:01,460 INFO  L112        PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2023-12-18 23:02:01,460 INFO  L270        PluginConnector]: Initializing Boogie Preprocessor...
[2023-12-18 23:02:01,461 INFO  L274        PluginConnector]: Boogie Preprocessor initialized
[2023-12-18 23:02:01,468 INFO  L184        PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 11:02:01" (1/1) ...
[2023-12-18 23:02:01,469 INFO  L184        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 11:02:01" (1/1) ...
[2023-12-18 23:02:01,470 INFO  L184        PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 11:02:01" (1/1) ...
[2023-12-18 23:02:01,479 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].
[2023-12-18 23:02:01,479 INFO  L184        PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 11:02:01" (1/1) ...
[2023-12-18 23:02:01,479 INFO  L184        PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 11:02:01" (1/1) ...
[2023-12-18 23:02:01,484 INFO  L184        PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 11:02:01" (1/1) ...
[2023-12-18 23:02:01,487 INFO  L184        PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 11:02:01" (1/1) ...
[2023-12-18 23:02:01,488 INFO  L184        PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 11:02:01" (1/1) ...
[2023-12-18 23:02:01,489 INFO  L184        PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 11:02:01" (1/1) ...
[2023-12-18 23:02:01,491 INFO  L131        PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2023-12-18 23:02:01,491 INFO  L112        PluginConnector]: ------------------------RCFGBuilder----------------------------
[2023-12-18 23:02:01,492 INFO  L270        PluginConnector]: Initializing RCFGBuilder...
[2023-12-18 23:02:01,492 INFO  L274        PluginConnector]: RCFGBuilder initialized
[2023-12-18 23:02:01,492 INFO  L184        PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 11:02:01" (1/1) ...
[2023-12-18 23:02:01,504 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2023-12-18 23:02:01,515 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2023-12-18 23:02:01,526 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)
[2023-12-18 23:02:01,546 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
[2023-12-18 23:02:01,553 INFO  L130     BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit
[2023-12-18 23:02:01,553 INFO  L130     BoogieDeclarations]: Found specification of procedure fp
[2023-12-18 23:02:01,553 INFO  L138     BoogieDeclarations]: Found implementation of procedure fp
[2023-12-18 23:02:01,554 INFO  L130     BoogieDeclarations]: Found specification of procedure f
[2023-12-18 23:02:01,555 INFO  L138     BoogieDeclarations]: Found implementation of procedure f
[2023-12-18 23:02:01,555 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~int#0
[2023-12-18 23:02:01,555 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~int#1
[2023-12-18 23:02:01,556 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2023-12-18 23:02:01,556 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2023-12-18 23:02:01,556 INFO  L130     BoogieDeclarations]: Found specification of procedure __VERIFIER_assert
[2023-12-18 23:02:01,556 INFO  L138     BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert
[2023-12-18 23:02:01,636 INFO  L241             CfgBuilder]: Building ICFG
[2023-12-18 23:02:01,641 INFO  L267             CfgBuilder]: Building CFG for each procedure with an implementation
[2023-12-18 23:02:01,847 INFO  L282             CfgBuilder]: Performing block encoding
[2023-12-18 23:02:01,871 INFO  L304             CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2023-12-18 23:02:01,872 INFO  L309             CfgBuilder]: Removed 1 assume(true) statements.
[2023-12-18 23:02:01,872 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.12 11:02:01 BoogieIcfgContainer
[2023-12-18 23:02:01,872 INFO  L131        PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2023-12-18 23:02:01,874 INFO  L112        PluginConnector]: ------------------------TraceAbstraction----------------------------
[2023-12-18 23:02:01,874 INFO  L270        PluginConnector]: Initializing TraceAbstraction...
[2023-12-18 23:02:01,877 INFO  L274        PluginConnector]: TraceAbstraction initialized
[2023-12-18 23:02:01,877 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.12 11:02:01" (1/3) ...
[2023-12-18 23:02:01,878 INFO  L204        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@31062596 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.12 11:02:01, skipping insertion in model container
[2023-12-18 23:02:01,879 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 11:02:01" (2/3) ...
[2023-12-18 23:02:01,879 INFO  L204        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@31062596 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.12 11:02:01, skipping insertion in model container
[2023-12-18 23:02:01,880 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.12 11:02:01" (3/3) ...
[2023-12-18 23:02:01,881 INFO  L112   eAbstractionObserver]: Analyzing ICFG gcd_4+newton_2_7.i
[2023-12-18 23:02:01,896 INFO  L204   ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2023-12-18 23:02:01,896 INFO  L163   ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations.
[2023-12-18 23:02:01,930 INFO  L356      AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ========
[2023-12-18 23:02:01,935 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;@ce85f0e, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms]
[2023-12-18 23:02:01,936 INFO  L358      AbstractCegarLoop]: Starting to check reachability of 2 error locations.
[2023-12-18 23:02:01,940 INFO  L276                IsEmpty]: Start isEmpty. Operand  has 37 states, 24 states have (on average 1.5) internal successors, (36), 26 states have internal predecessors, (36), 7 states have call successors, (7), 3 states have call predecessors, (7), 3 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7)
[2023-12-18 23:02:01,958 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 11
[2023-12-18 23:02:01,959 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-18 23:02:01,959 INFO  L195           NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2023-12-18 23:02:01,960 INFO  L420      AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-18 23:02:01,964 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-18 23:02:01,964 INFO  L85        PathProgramCache]: Analyzing trace with hash 531794030, now seen corresponding path program 1 times
[2023-12-18 23:02:01,972 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-12-18 23:02:01,972 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1690387534]
[2023-12-18 23:02:01,972 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-18 23:02:01,973 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-12-18 23:02:02,062 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-18 23:02:02,091 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-12-18 23:02:02,091 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1690387534]
[2023-12-18 23:02:02,092 WARN  L311   FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unsupported non-linear arithmetic
[2023-12-18 23:02:02,092 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1419668004]
[2023-12-18 23:02:02,092 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-18 23:02:02,092 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2023-12-18 23:02:02,093 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2023-12-18 23:02:02,094 INFO  L229       MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2023-12-18 23:02:02,109 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process
[2023-12-18 23:02:02,160 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-18 23:02:02,162 INFO  L262         TraceCheckSpWp]: Trace formula consists of 75 conjuncts, 4 conjunts are in the unsatisfiable core
[2023-12-18 23:02:02,166 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-12-18 23:02:02,228 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2023-12-18 23:02:02,228 INFO  L323         TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2023-12-18 23:02:02,228 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleZ3 [1419668004] provided 1 perfect and 0 imperfect interpolant sequences
[2023-12-18 23:02:02,229 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-12-18 23:02:02,229 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2023-12-18 23:02:02,230 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2029471966]
[2023-12-18 23:02:02,231 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-18 23:02:02,234 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2023-12-18 23:02:02,234 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-12-18 23:02:02,256 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2023-12-18 23:02:02,256 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2023-12-18 23:02:02,258 INFO  L87              Difference]: Start difference. First operand  has 37 states, 24 states have (on average 1.5) internal successors, (36), 26 states have internal predecessors, (36), 7 states have call successors, (7), 3 states have call predecessors, (7), 3 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) Second operand  has 3 states, 3 states have (on average 3.0) internal successors, (9), 3 states have internal predecessors, (9), 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)
[2023-12-18 23:02:02,324 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-18 23:02:02,324 INFO  L93              Difference]: Finished difference Result 72 states and 100 transitions.
[2023-12-18 23:02:02,325 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2023-12-18 23:02:02,326 INFO  L78                 Accepts]: Start accepts. Automaton has  has 3 states, 3 states have (on average 3.0) internal successors, (9), 3 states have internal predecessors, (9), 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 10
[2023-12-18 23:02:02,327 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-18 23:02:02,332 INFO  L225             Difference]: With dead ends: 72
[2023-12-18 23:02:02,333 INFO  L226             Difference]: Without dead ends: 36
[2023-12-18 23:02:02,335 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2023-12-18 23:02:02,340 INFO  L413           NwaCegarLoop]: 34 mSDtfsCounter, 6 mSDsluCounter, 28 mSDsCounter, 0 mSdLazyCounter, 22 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 62 SdHoareTripleChecker+Invalid, 23 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 22 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2023-12-18 23:02:02,341 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 62 Invalid, 23 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 22 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2023-12-18 23:02:02,355 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 36 states.
[2023-12-18 23:02:02,380 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 36 to 35.
[2023-12-18 23:02:02,382 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 35 states, 23 states have (on average 1.3043478260869565) internal successors, (30), 25 states have internal predecessors, (30), 7 states have call successors, (7), 3 states have call predecessors, (7), 3 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6)
[2023-12-18 23:02:02,383 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 35 states and 43 transitions.
[2023-12-18 23:02:02,384 INFO  L78                 Accepts]: Start accepts. Automaton has 35 states and 43 transitions. Word has length 10
[2023-12-18 23:02:02,385 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-18 23:02:02,385 INFO  L495      AbstractCegarLoop]: Abstraction has 35 states and 43 transitions.
[2023-12-18 23:02:02,386 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 3.0) internal successors, (9), 3 states have internal predecessors, (9), 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)
[2023-12-18 23:02:02,386 INFO  L276                IsEmpty]: Start isEmpty. Operand 35 states and 43 transitions.
[2023-12-18 23:02:02,388 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 11
[2023-12-18 23:02:02,388 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-18 23:02:02,388 INFO  L195           NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2023-12-18 23:02:02,400 INFO  L540       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0
[2023-12-18 23:02:02,594 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0
[2023-12-18 23:02:02,595 INFO  L420      AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-18 23:02:02,596 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-18 23:02:02,596 INFO  L85        PathProgramCache]: Analyzing trace with hash -1988165904, now seen corresponding path program 1 times
[2023-12-18 23:02:02,596 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-12-18 23:02:02,596 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1110086264]
[2023-12-18 23:02:02,596 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-18 23:02:02,597 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-12-18 23:02:02,609 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-18 23:02:02,617 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-12-18 23:02:02,617 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1110086264]
[2023-12-18 23:02:02,617 WARN  L311   FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unsupported non-linear arithmetic
[2023-12-18 23:02:02,618 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1268951240]
[2023-12-18 23:02:02,618 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-18 23:02:02,618 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2023-12-18 23:02:02,618 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2023-12-18 23:02:02,623 INFO  L229       MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2023-12-18 23:02:02,625 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process
[2023-12-18 23:02:02,680 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-18 23:02:02,681 INFO  L262         TraceCheckSpWp]: Trace formula consists of 73 conjuncts, 4 conjunts are in the unsatisfiable core
[2023-12-18 23:02:02,683 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-12-18 23:02:02,692 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2023-12-18 23:02:02,692 INFO  L323         TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2023-12-18 23:02:02,692 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleZ3 [1268951240] provided 1 perfect and 0 imperfect interpolant sequences
[2023-12-18 23:02:02,692 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-12-18 23:02:02,693 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2023-12-18 23:02:02,693 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [877059007]
[2023-12-18 23:02:02,693 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-18 23:02:02,694 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2023-12-18 23:02:02,694 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-12-18 23:02:02,694 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2023-12-18 23:02:02,695 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2023-12-18 23:02:02,695 INFO  L87              Difference]: Start difference. First operand 35 states and 43 transitions. Second operand  has 3 states, 3 states have (on average 3.0) internal successors, (9), 3 states have internal predecessors, (9), 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)
[2023-12-18 23:02:02,723 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-18 23:02:02,723 INFO  L93              Difference]: Finished difference Result 58 states and 74 transitions.
[2023-12-18 23:02:02,723 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2023-12-18 23:02:02,723 INFO  L78                 Accepts]: Start accepts. Automaton has  has 3 states, 3 states have (on average 3.0) internal successors, (9), 3 states have internal predecessors, (9), 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 10
[2023-12-18 23:02:02,724 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-18 23:02:02,725 INFO  L225             Difference]: With dead ends: 58
[2023-12-18 23:02:02,725 INFO  L226             Difference]: Without dead ends: 41
[2023-12-18 23:02:02,725 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2023-12-18 23:02:02,726 INFO  L413           NwaCegarLoop]: 30 mSDtfsCounter, 7 mSDsluCounter, 27 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 57 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2023-12-18 23:02:02,727 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [7 Valid, 57 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2023-12-18 23:02:02,728 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 41 states.
[2023-12-18 23:02:02,734 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 41 to 35.
[2023-12-18 23:02:02,735 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 35 states, 23 states have (on average 1.2173913043478262) internal successors, (28), 25 states have internal predecessors, (28), 7 states have call successors, (7), 3 states have call predecessors, (7), 3 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6)
[2023-12-18 23:02:02,736 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 35 states and 41 transitions.
[2023-12-18 23:02:02,737 INFO  L78                 Accepts]: Start accepts. Automaton has 35 states and 41 transitions. Word has length 10
[2023-12-18 23:02:02,737 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-18 23:02:02,737 INFO  L495      AbstractCegarLoop]: Abstraction has 35 states and 41 transitions.
[2023-12-18 23:02:02,737 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 3.0) internal successors, (9), 3 states have internal predecessors, (9), 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)
[2023-12-18 23:02:02,737 INFO  L276                IsEmpty]: Start isEmpty. Operand 35 states and 41 transitions.
[2023-12-18 23:02:02,738 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 15
[2023-12-18 23:02:02,738 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-18 23:02:02,738 INFO  L195           NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2023-12-18 23:02:02,747 INFO  L540       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0
[2023-12-18 23:02:02,938 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable1
[2023-12-18 23:02:02,939 INFO  L420      AbstractCegarLoop]: === Iteration 3 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-18 23:02:02,939 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-18 23:02:02,940 INFO  L85        PathProgramCache]: Analyzing trace with hash -466694725, now seen corresponding path program 1 times
[2023-12-18 23:02:02,940 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-12-18 23:02:02,940 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1896171414]
[2023-12-18 23:02:02,940 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-18 23:02:02,940 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-12-18 23:02:02,953 ERROR L246   FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic
[2023-12-18 23:02:02,953 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [115256051]
[2023-12-18 23:02:02,953 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-18 23:02:02,954 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2023-12-18 23:02:02,954 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2023-12-18 23:02:02,955 INFO  L229       MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2023-12-18 23:02:02,961 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process
[2023-12-18 23:02:02,999 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-18 23:02:03,000 INFO  L262         TraceCheckSpWp]: Trace formula consists of 76 conjuncts, 7 conjunts are in the unsatisfiable core
[2023-12-18 23:02:03,001 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-12-18 23:02:03,036 INFO  L134       CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2023-12-18 23:02:03,036 INFO  L323         TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2023-12-18 23:02:03,036 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-12-18 23:02:03,036 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1896171414]
[2023-12-18 23:02:03,037 WARN  L311   FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT
[2023-12-18 23:02:03,037 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [115256051]
[2023-12-18 23:02:03,037 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleZ3 [115256051] provided 1 perfect and 0 imperfect interpolant sequences
[2023-12-18 23:02:03,037 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-12-18 23:02:03,037 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2023-12-18 23:02:03,037 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [890961874]
[2023-12-18 23:02:03,037 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-18 23:02:03,038 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2023-12-18 23:02:03,038 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-12-18 23:02:03,039 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2023-12-18 23:02:03,039 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2023-12-18 23:02:03,039 INFO  L87              Difference]: Start difference. First operand 35 states and 41 transitions. Second operand  has 3 states, 3 states have (on average 4.333333333333333) internal successors, (13), 3 states have internal predecessors, (13), 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)
[2023-12-18 23:02:03,059 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-18 23:02:03,059 INFO  L93              Difference]: Finished difference Result 50 states and 60 transitions.
[2023-12-18 23:02:03,060 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2023-12-18 23:02:03,060 INFO  L78                 Accepts]: Start accepts. Automaton has  has 3 states, 3 states have (on average 4.333333333333333) internal successors, (13), 3 states have internal predecessors, (13), 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 14
[2023-12-18 23:02:03,060 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-18 23:02:03,061 INFO  L225             Difference]: With dead ends: 50
[2023-12-18 23:02:03,061 INFO  L226             Difference]: Without dead ends: 37
[2023-12-18 23:02:03,061 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2023-12-18 23:02:03,062 INFO  L413           NwaCegarLoop]: 30 mSDtfsCounter, 0 mSDsluCounter, 25 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 55 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 17 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2023-12-18 23:02:03,063 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 55 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 17 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2023-12-18 23:02:03,063 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 37 states.
[2023-12-18 23:02:03,067 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 37 to 37.
[2023-12-18 23:02:03,068 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 37 states, 25 states have (on average 1.2) internal successors, (30), 27 states have internal predecessors, (30), 7 states have call successors, (7), 3 states have call predecessors, (7), 3 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6)
[2023-12-18 23:02:03,069 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 37 states and 43 transitions.
[2023-12-18 23:02:03,069 INFO  L78                 Accepts]: Start accepts. Automaton has 37 states and 43 transitions. Word has length 14
[2023-12-18 23:02:03,069 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-18 23:02:03,069 INFO  L495      AbstractCegarLoop]: Abstraction has 37 states and 43 transitions.
[2023-12-18 23:02:03,070 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 4.333333333333333) internal successors, (13), 3 states have internal predecessors, (13), 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)
[2023-12-18 23:02:03,070 INFO  L276                IsEmpty]: Start isEmpty. Operand 37 states and 43 transitions.
[2023-12-18 23:02:03,070 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 17
[2023-12-18 23:02:03,070 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-18 23:02:03,071 INFO  L195           NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2023-12-18 23:02:03,080 INFO  L540       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0
[2023-12-18 23:02:03,276 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2023-12-18 23:02:03,276 INFO  L420      AbstractCegarLoop]: === Iteration 4 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-18 23:02:03,277 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-18 23:02:03,277 INFO  L85        PathProgramCache]: Analyzing trace with hash -1903157512, now seen corresponding path program 1 times
[2023-12-18 23:02:03,277 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-12-18 23:02:03,278 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1477395912]
[2023-12-18 23:02:03,278 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-18 23:02:03,278 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-12-18 23:02:03,290 ERROR L246   FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic
[2023-12-18 23:02:03,290 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1223215196]
[2023-12-18 23:02:03,290 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-18 23:02:03,291 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2023-12-18 23:02:03,291 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2023-12-18 23:02:03,292 INFO  L229       MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2023-12-18 23:02:03,300 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process
[2023-12-18 23:02:03,349 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-18 23:02:03,350 INFO  L262         TraceCheckSpWp]: Trace formula consists of 80 conjuncts, 8 conjunts are in the unsatisfiable core
[2023-12-18 23:02:03,351 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-12-18 23:02:03,422 INFO  L134       CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2023-12-18 23:02:03,423 INFO  L327         TraceCheckSpWp]: Computing backward predicates...
[2023-12-18 23:02:03,485 INFO  L134       CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2023-12-18 23:02:03,486 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-12-18 23:02:03,486 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1477395912]
[2023-12-18 23:02:03,486 WARN  L311   FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT
[2023-12-18 23:02:03,486 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1223215196]
[2023-12-18 23:02:03,486 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleZ3 [1223215196] provided 0 perfect and 2 imperfect interpolant sequences
[2023-12-18 23:02:03,486 INFO  L185   FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences.
[2023-12-18 23:02:03,487 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 6
[2023-12-18 23:02:03,487 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1809387888]
[2023-12-18 23:02:03,487 INFO  L85    oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton
[2023-12-18 23:02:03,487 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 6 states
[2023-12-18 23:02:03,487 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-12-18 23:02:03,488 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants.
[2023-12-18 23:02:03,488 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30
[2023-12-18 23:02:03,488 INFO  L87              Difference]: Start difference. First operand 37 states and 43 transitions. Second operand  has 6 states, 6 states have (on average 3.8333333333333335) internal successors, (23), 6 states have internal predecessors, (23), 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)
[2023-12-18 23:02:03,564 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-18 23:02:03,565 INFO  L93              Difference]: Finished difference Result 54 states and 65 transitions.
[2023-12-18 23:02:03,566 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. 
[2023-12-18 23:02:03,567 INFO  L78                 Accepts]: Start accepts. Automaton has  has 6 states, 6 states have (on average 3.8333333333333335) internal successors, (23), 6 states have internal predecessors, (23), 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 16
[2023-12-18 23:02:03,567 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-18 23:02:03,569 INFO  L225             Difference]: With dead ends: 54
[2023-12-18 23:02:03,569 INFO  L226             Difference]: Without dead ends: 41
[2023-12-18 23:02:03,569 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=23, Unknown=0, NotChecked=0, Total=42
[2023-12-18 23:02:03,570 INFO  L413           NwaCegarLoop]: 30 mSDtfsCounter, 3 mSDsluCounter, 100 mSDsCounter, 0 mSdLazyCounter, 44 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 130 SdHoareTripleChecker+Invalid, 45 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 44 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2023-12-18 23:02:03,571 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 130 Invalid, 45 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 44 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2023-12-18 23:02:03,571 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 41 states.
[2023-12-18 23:02:03,578 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 41 to 41.
[2023-12-18 23:02:03,578 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 41 states, 29 states have (on average 1.1724137931034482) internal successors, (34), 31 states have internal predecessors, (34), 7 states have call successors, (7), 3 states have call predecessors, (7), 3 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6)
[2023-12-18 23:02:03,579 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 41 states to 41 states and 47 transitions.
[2023-12-18 23:02:03,579 INFO  L78                 Accepts]: Start accepts. Automaton has 41 states and 47 transitions. Word has length 16
[2023-12-18 23:02:03,580 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-18 23:02:03,580 INFO  L495      AbstractCegarLoop]: Abstraction has 41 states and 47 transitions.
[2023-12-18 23:02:03,580 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 6 states, 6 states have (on average 3.8333333333333335) internal successors, (23), 6 states have internal predecessors, (23), 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)
[2023-12-18 23:02:03,580 INFO  L276                IsEmpty]: Start isEmpty. Operand 41 states and 47 transitions.
[2023-12-18 23:02:03,581 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 21
[2023-12-18 23:02:03,581 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-18 23:02:03,581 INFO  L195           NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2023-12-18 23:02:03,595 INFO  L540       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0
[2023-12-18 23:02:03,789 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2023-12-18 23:02:03,790 INFO  L420      AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-18 23:02:03,790 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-18 23:02:03,790 INFO  L85        PathProgramCache]: Analyzing trace with hash -1416757394, now seen corresponding path program 1 times
[2023-12-18 23:02:03,790 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-12-18 23:02:03,790 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2089334272]
[2023-12-18 23:02:03,791 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-18 23:02:03,791 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-12-18 23:02:03,812 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is sat
[2023-12-18 23:02:03,813 INFO  L356             TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders.
[2023-12-18 23:02:03,826 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is sat
[2023-12-18 23:02:03,842 INFO  L130   FreeRefinementEngine]: Strategy CAMEL found a feasible trace
[2023-12-18 23:02:03,842 INFO  L360         BasicCegarLoop]: Counterexample is feasible
[2023-12-18 23:02:03,843 INFO  L805   garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (1 of 2 remaining)
[2023-12-18 23:02:03,845 INFO  L805   garLoopResultBuilder]: Registering result UNKNOWN for location __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 2 remaining)
[2023-12-18 23:02:03,845 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4
[2023-12-18 23:02:03,849 INFO  L445         BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1]
[2023-12-18 23:02:03,854 INFO  L179   ceAbstractionStarter]: Computing trace abstraction results
[2023-12-18 23:02:03,876 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 18.12 11:02:03 BoogieIcfgContainer
[2023-12-18 23:02:03,876 INFO  L131        PluginConnector]: ------------------------ END TraceAbstraction----------------------------
[2023-12-18 23:02:03,877 INFO  L158              Benchmark]: Toolchain (without parser) took 2689.56ms. Allocated memory is still 277.9MB. Free memory was 223.8MB in the beginning and 187.4MB in the end (delta: 36.3MB). Peak memory consumption was 37.0MB. Max. memory is 8.0GB.
[2023-12-18 23:02:03,877 INFO  L158              Benchmark]: CDTParser took 0.11ms. Allocated memory is still 202.4MB. Free memory is still 151.4MB. There was no memory consumed. Max. memory is 8.0GB.
[2023-12-18 23:02:03,877 INFO  L158              Benchmark]: CACSL2BoogieTranslator took 236.92ms. Allocated memory is still 277.9MB. Free memory was 223.8MB in the beginning and 211.9MB in the end (delta: 11.9MB). Peak memory consumption was 11.5MB. Max. memory is 8.0GB.
[2023-12-18 23:02:03,878 INFO  L158              Benchmark]: Boogie Procedure Inliner took 33.94ms. Allocated memory is still 277.9MB. Free memory was 211.5MB in the beginning and 210.0MB in the end (delta: 1.5MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB.
[2023-12-18 23:02:03,878 INFO  L158              Benchmark]: Boogie Preprocessor took 30.50ms. Allocated memory is still 277.9MB. Free memory was 210.0MB in the beginning and 208.0MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB.
[2023-12-18 23:02:03,878 INFO  L158              Benchmark]: RCFGBuilder took 380.76ms. Allocated memory is still 277.9MB. Free memory was 207.7MB in the beginning and 194.4MB in the end (delta: 13.3MB). Peak memory consumption was 13.6MB. Max. memory is 8.0GB.
[2023-12-18 23:02:03,878 INFO  L158              Benchmark]: TraceAbstraction took 2002.18ms. Allocated memory is still 277.9MB. Free memory was 193.7MB in the beginning and 187.4MB in the end (delta: 6.3MB). Peak memory consumption was 6.6MB. Max. memory is 8.0GB.
[2023-12-18 23:02:03,884 INFO  L338   ainManager$Toolchain]: #######################  End [Toolchain 1] #######################
 --- Results ---
 * Results from de.uni_freiburg.informatik.ultimate.core:
  - StatisticsResult: Toolchain Benchmarks
    Benchmark results are:
 * CDTParser took 0.11ms. Allocated memory is still 202.4MB. Free memory is still 151.4MB. There was no memory consumed. Max. memory is 8.0GB.
 * CACSL2BoogieTranslator took 236.92ms. Allocated memory is still 277.9MB. Free memory was 223.8MB in the beginning and 211.9MB in the end (delta: 11.9MB). Peak memory consumption was 11.5MB. Max. memory is 8.0GB.
 * Boogie Procedure Inliner took 33.94ms. Allocated memory is still 277.9MB. Free memory was 211.5MB in the beginning and 210.0MB in the end (delta: 1.5MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB.
 * Boogie Preprocessor took 30.50ms. Allocated memory is still 277.9MB. Free memory was 210.0MB in the beginning and 208.0MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB.
 * RCFGBuilder took 380.76ms. Allocated memory is still 277.9MB. Free memory was 207.7MB in the beginning and 194.4MB in the end (delta: 13.3MB). Peak memory consumption was 13.6MB. Max. memory is 8.0GB.
 * TraceAbstraction took 2002.18ms. Allocated memory is still 277.9MB. Free memory was 193.7MB in the beginning and 187.4MB in the end (delta: 6.3MB). Peak memory consumption was 6.6MB. 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
  - UnprovableResult [Line: 109]: Unable to prove that a call to reach_error is unreachable
    Unable to prove that a call to reach_error is unreachable
 Reason: overapproximation of someBinaryFLOATComparisonOperation at line 98, overapproximation of someBinaryDOUBLEComparisonOperation at line 108, overapproximation of someBinaryArithmeticFLOAToperation at line 102. 
Possible FailurePath: 
[L115]  COND FALSE  !(__VERIFIER_nondet_int())
[L118]  CALL        main2()
[L97]               float IN = __VERIFIER_nondet_float();
[L98]   CALL        assume_abort_if_not(IN > -1.4f && IN < 1.4f)
[L82]   COND FALSE  !(!cond)
        VAL         [\old(cond)=1, cond=1]
[L98]   RET         assume_abort_if_not(IN > -1.4f && IN < 1.4f)
[L100]  CALL, EXPR  f(IN)
        VAL         [\old(x)=110]
[L87]               return x - (x*x*x)/6.0f + (x*x*x*x*x)/120.0f + (x*x*x*x*x*x*x)/5040.0f;
[L100]  RET, EXPR   f(IN)
        VAL         [IN=110]
[L100]  CALL, EXPR  fp(IN)
        VAL         [\old(x)=110]
[L92]               return 1 - (x*x)/2.0f + (x*x*x*x)/24.0f + (x*x*x*x*x*x)/720.0f;
[L100]  RET, EXPR   fp(IN)
        VAL         [IN=110]
[L100]              float x = IN - f(IN)/fp(IN);
[L102]  CALL, EXPR  f(x)
        VAL         [\old(x)=112]
[L87]               return x - (x*x*x)/6.0f + (x*x*x*x*x)/120.0f + (x*x*x*x*x*x*x)/5040.0f;
[L102]  RET, EXPR   f(x)
        VAL         [IN=110, x=112]
[L102]  CALL, EXPR  fp(x)
        VAL         [\old(x)=112]
[L92]               return 1 - (x*x)/2.0f + (x*x*x*x)/24.0f + (x*x*x*x*x*x)/720.0f;
[L102]  RET, EXPR   fp(x)
        VAL         [IN=110, x=112]
[L102]              x = x - f(x)/fp(x)
[L108]  COND TRUE   !(x < 0.1)
        VAL         [IN=110]
[L109]              reach_error()
        VAL         [IN=110]

  - UnprovableResult [Line: 27]: Unable to prove that a call to reach_error is unreachable
    Unable to prove that a call to reach_error is unreachable
 Reason: Not analyzed. 
  - StatisticsResult: Ultimate Automizer benchmark data
    CFG has 4 procedures, 37 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 1.9s, OverallIterations: 5, TraceHistogramMax: 2, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 16 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 16 mSDsluCounter, 304 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 180 mSDsCounter, 3 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 98 IncrementalHoareTripleChecker+Invalid, 101 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 3 mSolverCounterUnsat, 124 mSDtfsCounter, 98 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 62 GetRequests, 54 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=41occurred in iteration=4, InterpolantAutomatonStates: 14, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 4 MinimizatonAttempts, 7 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.3s InterpolantComputationTime, 90 NumberOfCodeBlocks, 90 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 61 ConstructedInterpolants, 0 QuantifiedInterpolants, 167 SizeOfPredicates, 12 NumberOfNonLiveVariables, 304 ConjunctsInSsa, 23 ConjunctsInUnsatCore, 5 InterpolantComputations, 3 PerfectInterpolantSequences, 5/9 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
RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces
[2023-12-18 23:02:03,899 INFO  L540       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Forceful destruction successful, exit code 0
Received shutdown request...