/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_Default.epf --cacsl2boogietranslator.use.bitabs.translation true -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/hardware-verification-bv/btor2c-lazyMod.telephony.4.prop1-func-interl.c


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


This is Ultimate 0.2.4-tmp.fs.bitabs-eval-d9c3e40-m
[2023-12-16 19:57:20,242 INFO  L188        SettingsManager]: Resetting all preferences to default values...
[2023-12-16 19:57:20,311 INFO  L114        SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-64bit-Automizer_Default.epf
[2023-12-16 19:57:20,315 WARN  L101        SettingsManager]: Preference file contains the following unknown settings:
[2023-12-16 19:57:20,316 WARN  L103        SettingsManager]:   * de.uni_freiburg.informatik.ultimate.core.Log level for class
[2023-12-16 19:57:20,337 INFO  L130        SettingsManager]: Preferences different from defaults after loading the file:
[2023-12-16 19:57:20,338 INFO  L151        SettingsManager]: Preferences of UltimateCore differ from their defaults:
[2023-12-16 19:57:20,338 INFO  L153        SettingsManager]:  * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR;
[2023-12-16 19:57:20,338 INFO  L151        SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults:
[2023-12-16 19:57:20,341 INFO  L153        SettingsManager]:  * Use memory slicer=true
[2023-12-16 19:57:20,341 INFO  L151        SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults:
[2023-12-16 19:57:20,342 INFO  L153        SettingsManager]:  * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS
[2023-12-16 19:57:20,342 INFO  L151        SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2023-12-16 19:57:20,343 INFO  L153        SettingsManager]:  * Create parallel compositions if possible=false
[2023-12-16 19:57:20,343 INFO  L153        SettingsManager]:  * Use SBE=true
[2023-12-16 19:57:20,344 INFO  L151        SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2023-12-16 19:57:20,344 INFO  L153        SettingsManager]:  * Pointer base address is valid at dereference=IGNORE
[2023-12-16 19:57:20,344 INFO  L153        SettingsManager]:  * Overapproximate operations on floating types=true
[2023-12-16 19:57:20,344 INFO  L153        SettingsManager]:  * Check division by zero=IGNORE
[2023-12-16 19:57:20,344 INFO  L153        SettingsManager]:  * Pointer to allocated memory at dereference=IGNORE
[2023-12-16 19:57:20,344 INFO  L153        SettingsManager]:  * If two pointers are subtracted or compared they have the same base address=IGNORE
[2023-12-16 19:57:20,345 INFO  L153        SettingsManager]:  * Check array bounds for arrays that are off heap=IGNORE
[2023-12-16 19:57:20,345 INFO  L153        SettingsManager]:  * Allow undefined functions=false
[2023-12-16 19:57:20,345 INFO  L153        SettingsManager]:  * Check if freed pointer was valid=false
[2023-12-16 19:57:20,345 INFO  L153        SettingsManager]:  * Use constant arrays=true
[2023-12-16 19:57:20,345 INFO  L151        SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2023-12-16 19:57:20,346 INFO  L153        SettingsManager]:  * Size of a code block=SequenceOfStatements
[2023-12-16 19:57:20,346 INFO  L153        SettingsManager]:  * Only consider context switches at boundaries of atomic blocks=true
[2023-12-16 19:57:20,346 INFO  L153        SettingsManager]:  * SMT solver=External_DefaultMode
[2023-12-16 19:57:20,346 INFO  L153        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2023-12-16 19:57:20,347 INFO  L151        SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2023-12-16 19:57:20,347 INFO  L153        SettingsManager]:  * Compute Interpolants along a Counterexample=FPandBP
[2023-12-16 19:57:20,347 INFO  L153        SettingsManager]:  * Positions where we compute the Hoare Annotation=LoopHeads
[2023-12-16 19:57:20,347 INFO  L153        SettingsManager]:  * Trace refinement strategy=CAMEL
[2023-12-16 19:57:20,347 INFO  L153        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2023-12-16 19:57:20,347 INFO  L153        SettingsManager]:  * Apply one-shot large block encoding in concurrent analysis=false
[2023-12-16 19:57:20,347 INFO  L153        SettingsManager]:  * Automaton type used in concurrency analysis=PETRI_NET
[2023-12-16 19:57:20,347 INFO  L153        SettingsManager]:  * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true
[2023-12-16 19:57:20,348 INFO  L153        SettingsManager]:  * Order on configurations for Petri net unfoldings=DBO
[2023-12-16 19:57:20,348 INFO  L153        SettingsManager]:  * SMT solver=External_ModelsAndUnsatCoreMode
[2023-12-16 19:57:20,348 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$1
WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations
WARNING: All illegal access operations will be denied in a future release
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Use bitabs translation -> true
[2023-12-16 19:57:20,546 INFO  L75    nceAwareModelManager]: Repository-Root is: /tmp
[2023-12-16 19:57:20,570 INFO  L261   ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2023-12-16 19:57:20,571 INFO  L217   ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2023-12-16 19:57:20,572 INFO  L270        PluginConnector]: Initializing CDTParser...
[2023-12-16 19:57:20,572 INFO  L274        PluginConnector]: CDTParser initialized
[2023-12-16 19:57:20,573 INFO  L431   ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/hardware-verification-bv/btor2c-lazyMod.telephony.4.prop1-func-interl.c
[2023-12-16 19:57:21,599 INFO  L533              CDTParser]: Created temporary CDT project at NULL
[2023-12-16 19:57:22,005 INFO  L384              CDTParser]: Found 1 translation units.
[2023-12-16 19:57:22,006 INFO  L180              CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/hardware-verification-bv/btor2c-lazyMod.telephony.4.prop1-func-interl.c
[2023-12-16 19:57:22,021 INFO  L427              CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4ed64970c/aa39f3ea1b6c4b8f92602e324d879378/FLAGe2d948b39
[2023-12-16 19:57:22,030 INFO  L435              CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4ed64970c/aa39f3ea1b6c4b8f92602e324d879378
[2023-12-16 19:57:22,032 INFO  L299   ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2023-12-16 19:57:22,033 INFO  L133        ToolchainWalker]: Walking toolchain with 5 elements.
[2023-12-16 19:57:22,034 INFO  L112        PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2023-12-16 19:57:22,034 INFO  L270        PluginConnector]: Initializing CACSL2BoogieTranslator...
[2023-12-16 19:57:22,037 INFO  L274        PluginConnector]: CACSL2BoogieTranslator initialized
[2023-12-16 19:57:22,037 INFO  L184        PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.12 07:57:22" (1/1) ...
[2023-12-16 19:57:22,038 INFO  L204        PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2e1c08de and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 07:57:22, skipping insertion in model container
[2023-12-16 19:57:22,038 INFO  L184        PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.12 07:57:22" (1/1) ...
[2023-12-16 19:57:22,098 INFO  L177         MainTranslator]: Built tables and reachable declarations
[2023-12-16 19:57:22,271 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.telephony.4.prop1-func-interl.c[1176,1189]
[2023-12-16 19:57:22,784 INFO  L209          PostProcessor]: Analyzing one entry point: main
[2023-12-16 19:57:22,791 INFO  L202         MainTranslator]: Completed pre-run
[2023-12-16 19:57:22,867 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.telephony.4.prop1-func-interl.c[1176,1189]
[2023-12-16 19:57:23,327 INFO  L209          PostProcessor]: Analyzing one entry point: main
[2023-12-16 19:57:23,338 INFO  L206         MainTranslator]: Completed translation
[2023-12-16 19:57:23,339 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 07:57:23 WrapperNode
[2023-12-16 19:57:23,339 INFO  L131        PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2023-12-16 19:57:23,340 INFO  L112        PluginConnector]: ------------------------Boogie Procedure Inliner----------------------------
[2023-12-16 19:57:23,340 INFO  L270        PluginConnector]: Initializing Boogie Procedure Inliner...
[2023-12-16 19:57:23,340 INFO  L274        PluginConnector]: Boogie Procedure Inliner initialized
[2023-12-16 19:57:23,346 INFO  L184        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 07:57:23" (1/1) ...
[2023-12-16 19:57:23,497 INFO  L184        PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 07:57:23" (1/1) ...
[2023-12-16 19:57:25,678 INFO  L138                Inliner]: procedures = 17, calls = 8, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 25756
[2023-12-16 19:57:25,679 INFO  L131        PluginConnector]: ------------------------ END Boogie Procedure Inliner----------------------------
[2023-12-16 19:57:25,679 INFO  L112        PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2023-12-16 19:57:25,679 INFO  L270        PluginConnector]: Initializing Boogie Preprocessor...
[2023-12-16 19:57:25,680 INFO  L274        PluginConnector]: Boogie Preprocessor initialized
[2023-12-16 19:57:25,706 INFO  L184        PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 07:57:23" (1/1) ...
[2023-12-16 19:57:25,707 INFO  L184        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 07:57:23" (1/1) ...
[2023-12-16 19:57:26,178 INFO  L184        PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 07:57:23" (1/1) ...
[2023-12-16 19:57:26,437 INFO  L175           MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0].
[2023-12-16 19:57:26,437 INFO  L184        PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 07:57:23" (1/1) ...
[2023-12-16 19:57:26,437 INFO  L184        PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 07:57:23" (1/1) ...
[2023-12-16 19:57:26,957 INFO  L184        PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 07:57:23" (1/1) ...
[2023-12-16 19:57:27,224 INFO  L184        PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 07:57:23" (1/1) ...
[2023-12-16 19:57:27,364 INFO  L184        PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 07:57:23" (1/1) ...
[2023-12-16 19:57:27,439 INFO  L184        PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 07:57:23" (1/1) ...
[2023-12-16 19:57:27,917 INFO  L131        PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2023-12-16 19:57:27,918 INFO  L112        PluginConnector]: ------------------------RCFGBuilder----------------------------
[2023-12-16 19:57:27,918 INFO  L270        PluginConnector]: Initializing RCFGBuilder...
[2023-12-16 19:57:27,918 INFO  L274        PluginConnector]: RCFGBuilder initialized
[2023-12-16 19:57:27,918 INFO  L184        PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 07:57:23" (1/1) ...
[2023-12-16 19:57:27,924 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2023-12-16 19:57:27,931 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2023-12-16 19:57:27,941 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)
[2023-12-16 19:57:27,949 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
[2023-12-16 19:57:27,963 INFO  L130     BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit
[2023-12-16 19:57:27,963 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~int#0
[2023-12-16 19:57:27,963 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2023-12-16 19:57:27,963 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2023-12-16 19:57:28,831 INFO  L241             CfgBuilder]: Building ICFG
[2023-12-16 19:57:28,833 INFO  L267             CfgBuilder]: Building CFG for each procedure with an implementation
[2023-12-16 19:57:38,023 INFO  L282             CfgBuilder]: Performing block encoding
[2023-12-16 19:57:38,246 INFO  L304             CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2023-12-16 19:57:38,246 INFO  L309             CfgBuilder]: Removed 1 assume(true) statements.
[2023-12-16 19:57:38,247 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.12 07:57:38 BoogieIcfgContainer
[2023-12-16 19:57:38,248 INFO  L131        PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2023-12-16 19:57:38,249 INFO  L112        PluginConnector]: ------------------------TraceAbstraction----------------------------
[2023-12-16 19:57:38,249 INFO  L270        PluginConnector]: Initializing TraceAbstraction...
[2023-12-16 19:57:38,251 INFO  L274        PluginConnector]: TraceAbstraction initialized
[2023-12-16 19:57:38,251 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.12 07:57:22" (1/3) ...
[2023-12-16 19:57:38,252 INFO  L204        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7e66f039 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.12 07:57:38, skipping insertion in model container
[2023-12-16 19:57:38,252 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 07:57:23" (2/3) ...
[2023-12-16 19:57:38,252 INFO  L204        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7e66f039 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.12 07:57:38, skipping insertion in model container
[2023-12-16 19:57:38,253 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.12 07:57:38" (3/3) ...
[2023-12-16 19:57:38,253 INFO  L112   eAbstractionObserver]: Analyzing ICFG btor2c-lazyMod.telephony.4.prop1-func-interl.c
[2023-12-16 19:57:38,264 INFO  L204   ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2023-12-16 19:57:38,264 INFO  L163   ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations.
[2023-12-16 19:57:38,360 INFO  L356      AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ========
[2023-12-16 19:57:38,365 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;@4797482b, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms]
[2023-12-16 19:57:38,365 INFO  L358      AbstractCegarLoop]: Starting to check reachability of 1 error locations.
[2023-12-16 19:57:38,380 INFO  L276                IsEmpty]: Start isEmpty. Operand  has 5907 states, 5905 states have (on average 1.6702794242167656) internal successors, (9863), 5906 states have internal predecessors, (9863), 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)
[2023-12-16 19:57:38,395 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 309
[2023-12-16 19:57:38,395 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-16 19:57:38,396 INFO  L195           NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2023-12-16 19:57:38,397 INFO  L420      AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-16 19:57:38,400 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-16 19:57:38,400 INFO  L85        PathProgramCache]: Analyzing trace with hash -899498307, now seen corresponding path program 1 times
[2023-12-16 19:57:38,406 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-12-16 19:57:38,406 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1508994295]
[2023-12-16 19:57:38,406 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-16 19:57:38,407 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-12-16 19:57:38,838 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-16 19:57:39,541 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2023-12-16 19:57:39,541 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-12-16 19:57:39,541 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1508994295]
[2023-12-16 19:57:39,542 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1508994295] provided 1 perfect and 0 imperfect interpolant sequences
[2023-12-16 19:57:39,542 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-12-16 19:57:39,542 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2023-12-16 19:57:39,543 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1856971628]
[2023-12-16 19:57:39,543 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-16 19:57:39,546 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2023-12-16 19:57:39,547 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-12-16 19:57:39,583 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2023-12-16 19:57:39,583 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2023-12-16 19:57:39,593 INFO  L87              Difference]: Start difference. First operand  has 5907 states, 5905 states have (on average 1.6702794242167656) internal successors, (9863), 5906 states have internal predecessors, (9863), 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 77.0) internal successors, (308), 4 states have internal predecessors, (308), 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)
[2023-12-16 19:57:39,874 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-16 19:57:39,874 INFO  L93              Difference]: Finished difference Result 11594 states and 19362 transitions.
[2023-12-16 19:57:39,875 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2023-12-16 19:57:39,876 INFO  L78                 Accepts]: Start accepts. Automaton has  has 4 states, 4 states have (on average 77.0) internal successors, (308), 4 states have internal predecessors, (308), 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 308
[2023-12-16 19:57:39,879 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-16 19:57:39,911 INFO  L225             Difference]: With dead ends: 11594
[2023-12-16 19:57:39,912 INFO  L226             Difference]: Without dead ends: 5907
[2023-12-16 19:57:39,925 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2023-12-16 19:57:39,928 INFO  L413           NwaCegarLoop]: 9856 mSDtfsCounter, 1 mSDsluCounter, 19707 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 29563 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2023-12-16 19:57:39,929 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 29563 Invalid, 13 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2023-12-16 19:57:39,950 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 5907 states.
[2023-12-16 19:57:40,065 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 5907 to 5907.
[2023-12-16 19:57:40,076 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 5907 states, 5906 states have (on average 1.6696579749407383) internal successors, (9861), 5906 states have internal predecessors, (9861), 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)
[2023-12-16 19:57:40,089 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 5907 states to 5907 states and 9861 transitions.
[2023-12-16 19:57:40,090 INFO  L78                 Accepts]: Start accepts. Automaton has 5907 states and 9861 transitions. Word has length 308
[2023-12-16 19:57:40,093 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-16 19:57:40,093 INFO  L495      AbstractCegarLoop]: Abstraction has 5907 states and 9861 transitions.
[2023-12-16 19:57:40,093 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 4 states, 4 states have (on average 77.0) internal successors, (308), 4 states have internal predecessors, (308), 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)
[2023-12-16 19:57:40,093 INFO  L276                IsEmpty]: Start isEmpty. Operand 5907 states and 9861 transitions.
[2023-12-16 19:57:40,100 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 310
[2023-12-16 19:57:40,100 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-16 19:57:40,101 INFO  L195           NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2023-12-16 19:57:40,101 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0
[2023-12-16 19:57:40,101 INFO  L420      AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-16 19:57:40,101 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-16 19:57:40,102 INFO  L85        PathProgramCache]: Analyzing trace with hash -2112916969, now seen corresponding path program 1 times
[2023-12-16 19:57:40,102 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-12-16 19:57:40,102 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [160558686]
[2023-12-16 19:57:40,102 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-16 19:57:40,102 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-12-16 19:57:40,221 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-16 19:57:40,646 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2023-12-16 19:57:40,647 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-12-16 19:57:40,647 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [160558686]
[2023-12-16 19:57:40,647 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [160558686] provided 1 perfect and 0 imperfect interpolant sequences
[2023-12-16 19:57:40,647 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-12-16 19:57:40,647 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2023-12-16 19:57:40,647 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1046042698]
[2023-12-16 19:57:40,647 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-16 19:57:40,648 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2023-12-16 19:57:40,648 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-12-16 19:57:40,649 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2023-12-16 19:57:40,649 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2023-12-16 19:57:40,649 INFO  L87              Difference]: Start difference. First operand 5907 states and 9861 transitions. Second operand  has 4 states, 4 states have (on average 77.25) internal successors, (309), 4 states have internal predecessors, (309), 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)
[2023-12-16 19:57:40,792 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-16 19:57:40,793 INFO  L93              Difference]: Finished difference Result 11597 states and 19360 transitions.
[2023-12-16 19:57:40,793 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2023-12-16 19:57:40,793 INFO  L78                 Accepts]: Start accepts. Automaton has  has 4 states, 4 states have (on average 77.25) internal successors, (309), 4 states have internal predecessors, (309), 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 309
[2023-12-16 19:57:40,794 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-16 19:57:40,810 INFO  L225             Difference]: With dead ends: 11597
[2023-12-16 19:57:40,810 INFO  L226             Difference]: Without dead ends: 5910
[2023-12-16 19:57:40,818 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2023-12-16 19:57:40,819 INFO  L413           NwaCegarLoop]: 9856 mSDtfsCounter, 1 mSDsluCounter, 19705 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 29561 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2023-12-16 19:57:40,819 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 29561 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2023-12-16 19:57:40,827 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 5910 states.
[2023-12-16 19:57:40,890 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 5910 to 5909.
[2023-12-16 19:57:40,907 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 5909 states, 5908 states have (on average 1.669431279620853) internal successors, (9863), 5908 states have internal predecessors, (9863), 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)
[2023-12-16 19:57:40,917 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 5909 states to 5909 states and 9863 transitions.
[2023-12-16 19:57:40,918 INFO  L78                 Accepts]: Start accepts. Automaton has 5909 states and 9863 transitions. Word has length 309
[2023-12-16 19:57:40,919 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-16 19:57:40,919 INFO  L495      AbstractCegarLoop]: Abstraction has 5909 states and 9863 transitions.
[2023-12-16 19:57:40,920 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 4 states, 4 states have (on average 77.25) internal successors, (309), 4 states have internal predecessors, (309), 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)
[2023-12-16 19:57:40,920 INFO  L276                IsEmpty]: Start isEmpty. Operand 5909 states and 9863 transitions.
[2023-12-16 19:57:40,922 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 311
[2023-12-16 19:57:40,922 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-16 19:57:40,922 INFO  L195           NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2023-12-16 19:57:40,922 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1
[2023-12-16 19:57:40,922 INFO  L420      AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-16 19:57:40,923 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-16 19:57:40,923 INFO  L85        PathProgramCache]: Analyzing trace with hash -1286347241, now seen corresponding path program 1 times
[2023-12-16 19:57:40,924 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-12-16 19:57:40,924 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2072215753]
[2023-12-16 19:57:40,924 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-16 19:57:40,924 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-12-16 19:57:41,021 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-16 19:57:41,339 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2023-12-16 19:57:41,339 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-12-16 19:57:41,340 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2072215753]
[2023-12-16 19:57:41,341 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2072215753] provided 1 perfect and 0 imperfect interpolant sequences
[2023-12-16 19:57:41,341 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-12-16 19:57:41,341 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2023-12-16 19:57:41,341 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1452643879]
[2023-12-16 19:57:41,341 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-16 19:57:41,342 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2023-12-16 19:57:41,342 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-12-16 19:57:41,343 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2023-12-16 19:57:41,345 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2023-12-16 19:57:41,346 INFO  L87              Difference]: Start difference. First operand 5909 states and 9863 transitions. Second operand  has 4 states, 4 states have (on average 77.5) internal successors, (310), 4 states have internal predecessors, (310), 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)
[2023-12-16 19:57:41,613 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-16 19:57:41,614 INFO  L93              Difference]: Finished difference Result 17277 states and 28842 transitions.
[2023-12-16 19:57:41,614 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2023-12-16 19:57:41,614 INFO  L78                 Accepts]: Start accepts. Automaton has  has 4 states, 4 states have (on average 77.5) internal successors, (310), 4 states have internal predecessors, (310), 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 310
[2023-12-16 19:57:41,614 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-16 19:57:41,653 INFO  L225             Difference]: With dead ends: 17277
[2023-12-16 19:57:41,654 INFO  L226             Difference]: Without dead ends: 11588
[2023-12-16 19:57:41,660 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2023-12-16 19:57:41,662 INFO  L413           NwaCegarLoop]: 10237 mSDtfsCounter, 9479 mSDsluCounter, 20082 mSDsCounter, 0 mSdLazyCounter, 20 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9479 SdHoareTripleChecker+Valid, 30319 SdHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 20 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2023-12-16 19:57:41,663 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [9479 Valid, 30319 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 20 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2023-12-16 19:57:41,672 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 11588 states.
[2023-12-16 19:57:41,754 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 11588 to 5911.
[2023-12-16 19:57:41,762 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 5911 states, 5910 states have (on average 1.6692047377326564) internal successors, (9865), 5910 states have internal predecessors, (9865), 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)
[2023-12-16 19:57:41,772 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 5911 states to 5911 states and 9865 transitions.
[2023-12-16 19:57:41,772 INFO  L78                 Accepts]: Start accepts. Automaton has 5911 states and 9865 transitions. Word has length 310
[2023-12-16 19:57:41,773 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-16 19:57:41,773 INFO  L495      AbstractCegarLoop]: Abstraction has 5911 states and 9865 transitions.
[2023-12-16 19:57:41,773 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 4 states, 4 states have (on average 77.5) internal successors, (310), 4 states have internal predecessors, (310), 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)
[2023-12-16 19:57:41,774 INFO  L276                IsEmpty]: Start isEmpty. Operand 5911 states and 9865 transitions.
[2023-12-16 19:57:41,778 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 312
[2023-12-16 19:57:41,778 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-16 19:57:41,781 INFO  L195           NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2023-12-16 19:57:41,781 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2
[2023-12-16 19:57:41,782 INFO  L420      AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-16 19:57:41,783 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-16 19:57:41,783 INFO  L85        PathProgramCache]: Analyzing trace with hash -15177221, now seen corresponding path program 1 times
[2023-12-16 19:57:41,783 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-12-16 19:57:41,784 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1741600348]
[2023-12-16 19:57:41,784 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-16 19:57:41,784 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-12-16 19:57:41,883 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-16 19:57:42,589 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2023-12-16 19:57:42,589 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-12-16 19:57:42,589 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1741600348]
[2023-12-16 19:57:42,589 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1741600348] provided 1 perfect and 0 imperfect interpolant sequences
[2023-12-16 19:57:42,589 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-12-16 19:57:42,589 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6
[2023-12-16 19:57:42,590 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [266082616]
[2023-12-16 19:57:42,590 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-16 19:57:42,590 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 7 states
[2023-12-16 19:57:42,590 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-12-16 19:57:42,591 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants.
[2023-12-16 19:57:42,591 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42
[2023-12-16 19:57:42,591 INFO  L87              Difference]: Start difference. First operand 5911 states and 9865 transitions. Second operand  has 7 states, 7 states have (on average 44.42857142857143) internal successors, (311), 6 states have internal predecessors, (311), 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)
[2023-12-16 19:57:43,216 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-16 19:57:43,216 INFO  L93              Difference]: Finished difference Result 17514 states and 29233 transitions.
[2023-12-16 19:57:43,216 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. 
[2023-12-16 19:57:43,217 INFO  L78                 Accepts]: Start accepts. Automaton has  has 7 states, 7 states have (on average 44.42857142857143) internal successors, (311), 6 states have internal predecessors, (311), 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 311
[2023-12-16 19:57:43,217 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-16 19:57:43,236 INFO  L225             Difference]: With dead ends: 17514
[2023-12-16 19:57:43,237 INFO  L226             Difference]: Without dead ends: 11823
[2023-12-16 19:57:43,247 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=39, Invalid=71, Unknown=0, NotChecked=0, Total=110
[2023-12-16 19:57:43,248 INFO  L413           NwaCegarLoop]: 10232 mSDtfsCounter, 38395 mSDsluCounter, 39774 mSDsCounter, 0 mSdLazyCounter, 52 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 38395 SdHoareTripleChecker+Valid, 50006 SdHoareTripleChecker+Invalid, 54 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.2s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 52 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2023-12-16 19:57:43,248 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [38395 Valid, 50006 Invalid, 54 Unknown, 0 Unchecked, 0.2s Time], IncrementalHoareTripleChecker [2 Valid, 52 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2023-12-16 19:57:43,260 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 11823 states.
[2023-12-16 19:57:43,368 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 11823 to 6142.
[2023-12-16 19:57:43,376 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 6142 states, 6141 states have (on average 1.669109265591923) internal successors, (10250), 6141 states have internal predecessors, (10250), 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)
[2023-12-16 19:57:43,387 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 6142 states to 6142 states and 10250 transitions.
[2023-12-16 19:57:43,387 INFO  L78                 Accepts]: Start accepts. Automaton has 6142 states and 10250 transitions. Word has length 311
[2023-12-16 19:57:43,387 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-16 19:57:43,388 INFO  L495      AbstractCegarLoop]: Abstraction has 6142 states and 10250 transitions.
[2023-12-16 19:57:43,388 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 7 states, 7 states have (on average 44.42857142857143) internal successors, (311), 6 states have internal predecessors, (311), 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)
[2023-12-16 19:57:43,388 INFO  L276                IsEmpty]: Start isEmpty. Operand 6142 states and 10250 transitions.
[2023-12-16 19:57:43,599 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 4019
[2023-12-16 19:57:43,599 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-16 19:57:43,601 INFO  L195           NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2023-12-16 19:57:43,601 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3
[2023-12-16 19:57:43,601 INFO  L420      AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-16 19:57:43,602 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-16 19:57:43,602 INFO  L85        PathProgramCache]: Analyzing trace with hash -139604665, now seen corresponding path program 1 times
[2023-12-16 19:57:43,602 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-12-16 19:57:43,602 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [789808711]
[2023-12-16 19:57:43,603 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-16 19:57:43,603 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-12-16 19:57:43,985 ERROR L246   FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic
[2023-12-16 19:57:43,985 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [187475974]
[2023-12-16 19:57:43,986 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-16 19:57:43,987 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2023-12-16 19:57:43,987 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2023-12-16 19:57:43,989 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)
[2023-12-16 19:57:44,053 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process
[2023-12-16 19:57:48,532 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-16 19:57:48,646 INFO  L262         TraceCheckSpWp]: Trace formula consists of 17963 conjuncts, 10 conjunts are in the unsatisfiable core
[2023-12-16 19:57:48,718 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-12-16 19:57:50,364 INFO  L134       CoverageAnalysis]: Checked inductivity of 160 backedges. 160 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2023-12-16 19:57:50,364 INFO  L323         TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2023-12-16 19:57:50,365 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-12-16 19:57:50,365 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [789808711]
[2023-12-16 19:57:50,365 WARN  L311   FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT
[2023-12-16 19:57:50,365 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [187475974]
[2023-12-16 19:57:50,365 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleZ3 [187475974] provided 1 perfect and 0 imperfect interpolant sequences
[2023-12-16 19:57:50,365 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-12-16 19:57:50,366 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2023-12-16 19:57:50,366 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1145599585]
[2023-12-16 19:57:50,366 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-16 19:57:50,370 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2023-12-16 19:57:50,370 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-12-16 19:57:50,373 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2023-12-16 19:57:50,373 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2023-12-16 19:57:50,374 INFO  L87              Difference]: Start difference. First operand 6142 states and 10250 transitions. Second operand  has 4 states, 4 states have (on average 1004.5) internal successors, (4018), 3 states have internal predecessors, (4018), 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)
[2023-12-16 19:57:52,980 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-16 19:57:52,980 INFO  L93              Difference]: Finished difference Result 12328 states and 20580 transitions.
[2023-12-16 19:57:52,980 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2023-12-16 19:57:52,981 INFO  L78                 Accepts]: Start accepts. Automaton has  has 4 states, 4 states have (on average 1004.5) internal successors, (4018), 3 states have internal predecessors, (4018), 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 4018
[2023-12-16 19:57:52,985 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-16 19:57:53,025 INFO  L225             Difference]: With dead ends: 12328
[2023-12-16 19:57:53,025 INFO  L226             Difference]: Without dead ends: 6637
[2023-12-16 19:57:53,032 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 4018 GetRequests, 4015 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20
[2023-12-16 19:57:53,033 INFO  L413           NwaCegarLoop]: 8716 mSDtfsCounter, 18754 mSDsluCounter, 888 mSDsCounter, 0 mSdLazyCounter, 3051 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 18754 SdHoareTripleChecker+Valid, 9604 SdHoareTripleChecker+Invalid, 3051 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 3051 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time
[2023-12-16 19:57:53,033 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [18754 Valid, 9604 Invalid, 3051 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 3051 Invalid, 0 Unknown, 0 Unchecked, 2.5s Time]
[2023-12-16 19:57:53,046 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 6637 states.
[2023-12-16 19:57:53,166 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 6637 to 6142.
[2023-12-16 19:57:53,172 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 6142 states, 6141 states have (on average 1.6689464256635727) internal successors, (10249), 6141 states have internal predecessors, (10249), 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)
[2023-12-16 19:57:53,178 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 6142 states to 6142 states and 10249 transitions.
[2023-12-16 19:57:53,179 INFO  L78                 Accepts]: Start accepts. Automaton has 6142 states and 10249 transitions. Word has length 4018
[2023-12-16 19:57:53,179 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-16 19:57:53,180 INFO  L495      AbstractCegarLoop]: Abstraction has 6142 states and 10249 transitions.
[2023-12-16 19:57:53,180 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 4 states, 4 states have (on average 1004.5) internal successors, (4018), 3 states have internal predecessors, (4018), 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)
[2023-12-16 19:57:53,181 INFO  L276                IsEmpty]: Start isEmpty. Operand 6142 states and 10249 transitions.
[2023-12-16 19:57:53,270 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 4020
[2023-12-16 19:57:53,270 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-16 19:57:53,272 INFO  L195           NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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[2023-12-16 19:57:53,324 INFO  L552       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0
[2023-12-16 19:57:53,488 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2023-12-16 19:57:53,489 INFO  L420      AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-16 19:57:53,489 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-16 19:57:53,490 INFO  L85        PathProgramCache]: Analyzing trace with hash 1058694273, now seen corresponding path program 1 times
[2023-12-16 19:57:53,490 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-12-16 19:57:53,490 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1422426188]
[2023-12-16 19:57:53,490 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-16 19:57:53,491 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-12-16 19:57:53,835 ERROR L246   FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic
[2023-12-16 19:57:53,836 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [935871958]
[2023-12-16 19:57:53,836 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-16 19:57:53,837 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2023-12-16 19:57:53,837 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2023-12-16 19:57:53,861 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)
[2023-12-16 19:57:53,921 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process
[2023-12-16 19:57:58,131 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-16 19:57:58,244 INFO  L262         TraceCheckSpWp]: Trace formula consists of 17964 conjuncts, 10 conjunts are in the unsatisfiable core
[2023-12-16 19:57:58,308 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-12-16 19:57:59,830 INFO  L134       CoverageAnalysis]: Checked inductivity of 160 backedges. 160 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2023-12-16 19:57:59,830 INFO  L323         TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2023-12-16 19:57:59,831 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-12-16 19:57:59,831 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1422426188]
[2023-12-16 19:57:59,831 WARN  L311   FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT
[2023-12-16 19:57:59,834 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [935871958]
[2023-12-16 19:57:59,834 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleZ3 [935871958] provided 1 perfect and 0 imperfect interpolant sequences
[2023-12-16 19:57:59,835 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-12-16 19:57:59,836 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2023-12-16 19:57:59,836 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1063942557]
[2023-12-16 19:57:59,836 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-16 19:57:59,839 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2023-12-16 19:57:59,839 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-12-16 19:57:59,842 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2023-12-16 19:57:59,842 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2023-12-16 19:57:59,842 INFO  L87              Difference]: Start difference. First operand 6142 states and 10249 transitions. Second operand  has 4 states, 4 states have (on average 1004.75) internal successors, (4019), 3 states have internal predecessors, (4019), 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)
[2023-12-16 19:58:02,363 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-16 19:58:02,363 INFO  L93              Difference]: Finished difference Result 12335 states and 20589 transitions.
[2023-12-16 19:58:02,364 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2023-12-16 19:58:02,380 INFO  L78                 Accepts]: Start accepts. Automaton has  has 4 states, 4 states have (on average 1004.75) internal successors, (4019), 3 states have internal predecessors, (4019), 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 4019
[2023-12-16 19:58:02,383 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-16 19:58:02,409 INFO  L225             Difference]: With dead ends: 12335
[2023-12-16 19:58:02,410 INFO  L226             Difference]: Without dead ends: 6644
[2023-12-16 19:58:02,432 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 4019 GetRequests, 4016 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20
[2023-12-16 19:58:02,434 INFO  L413           NwaCegarLoop]: 8725 mSDtfsCounter, 18747 mSDsluCounter, 898 mSDsCounter, 0 mSdLazyCounter, 3053 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 18747 SdHoareTripleChecker+Valid, 9623 SdHoareTripleChecker+Invalid, 3053 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 3053 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time
[2023-12-16 19:58:02,434 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [18747 Valid, 9623 Invalid, 3053 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 3053 Invalid, 0 Unknown, 0 Unchecked, 2.3s Time]
[2023-12-16 19:58:02,441 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 6644 states.
[2023-12-16 19:58:02,516 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 6644 to 6142.
[2023-12-16 19:58:02,524 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 6142 states, 6141 states have (on average 1.6687835857352222) internal successors, (10248), 6141 states have internal predecessors, (10248), 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)
[2023-12-16 19:58:02,531 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 6142 states to 6142 states and 10248 transitions.
[2023-12-16 19:58:02,531 INFO  L78                 Accepts]: Start accepts. Automaton has 6142 states and 10248 transitions. Word has length 4019
[2023-12-16 19:58:02,532 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-16 19:58:02,534 INFO  L495      AbstractCegarLoop]: Abstraction has 6142 states and 10248 transitions.
[2023-12-16 19:58:02,536 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 4 states, 4 states have (on average 1004.75) internal successors, (4019), 3 states have internal predecessors, (4019), 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)
[2023-12-16 19:58:02,536 INFO  L276                IsEmpty]: Start isEmpty. Operand 6142 states and 10248 transitions.
[2023-12-16 19:58:02,681 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 4021
[2023-12-16 19:58:02,681 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-16 19:58:02,683 INFO  L195           NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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[2023-12-16 19:58:02,744 INFO  L540       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0
[2023-12-16 19:58:02,904 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,SelfDestructingSolverStorable5
[2023-12-16 19:58:02,905 INFO  L420      AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-16 19:58:02,906 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-16 19:58:02,907 INFO  L85        PathProgramCache]: Analyzing trace with hash 1819654102, now seen corresponding path program 1 times
[2023-12-16 19:58:02,907 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-12-16 19:58:02,907 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [866976195]
[2023-12-16 19:58:02,907 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-16 19:58:02,907 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-12-16 19:58:03,277 ERROR L246   FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic
[2023-12-16 19:58:03,277 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [181160630]
[2023-12-16 19:58:03,278 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-16 19:58:03,278 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2023-12-16 19:58:03,278 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2023-12-16 19:58:03,280 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)
[2023-12-16 19:58:03,304 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process
[2023-12-16 19:58:07,301 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-16 19:58:07,436 INFO  L262         TraceCheckSpWp]: Trace formula consists of 17965 conjuncts, 10 conjunts are in the unsatisfiable core
[2023-12-16 19:58:07,526 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-12-16 19:58:09,092 INFO  L134       CoverageAnalysis]: Checked inductivity of 160 backedges. 160 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2023-12-16 19:58:09,093 INFO  L323         TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2023-12-16 19:58:09,093 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-12-16 19:58:09,093 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [866976195]
[2023-12-16 19:58:09,093 WARN  L311   FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT
[2023-12-16 19:58:09,093 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [181160630]
[2023-12-16 19:58:09,093 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleZ3 [181160630] provided 1 perfect and 0 imperfect interpolant sequences
[2023-12-16 19:58:09,093 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-12-16 19:58:09,093 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2023-12-16 19:58:09,094 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1716949310]
[2023-12-16 19:58:09,094 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-16 19:58:09,096 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2023-12-16 19:58:09,096 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-12-16 19:58:09,099 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2023-12-16 19:58:09,099 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2023-12-16 19:58:09,099 INFO  L87              Difference]: Start difference. First operand 6142 states and 10248 transitions. Second operand  has 4 states, 4 states have (on average 1005.0) internal successors, (4020), 3 states have internal predecessors, (4020), 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)
[2023-12-16 19:58:11,880 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-16 19:58:11,880 INFO  L93              Difference]: Finished difference Result 12339 states and 20593 transitions.
[2023-12-16 19:58:11,881 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2023-12-16 19:58:11,882 INFO  L78                 Accepts]: Start accepts. Automaton has  has 4 states, 4 states have (on average 1005.0) internal successors, (4020), 3 states have internal predecessors, (4020), 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 4020
[2023-12-16 19:58:11,883 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-16 19:58:11,891 INFO  L225             Difference]: With dead ends: 12339
[2023-12-16 19:58:11,892 INFO  L226             Difference]: Without dead ends: 6648
[2023-12-16 19:58:11,898 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 4020 GetRequests, 4017 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20
[2023-12-16 19:58:11,899 INFO  L413           NwaCegarLoop]: 8729 mSDtfsCounter, 18742 mSDsluCounter, 903 mSDsCounter, 0 mSdLazyCounter, 3055 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 18742 SdHoareTripleChecker+Valid, 9632 SdHoareTripleChecker+Invalid, 3055 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 3055 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.7s IncrementalHoareTripleChecker+Time
[2023-12-16 19:58:11,899 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [18742 Valid, 9632 Invalid, 3055 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 3055 Invalid, 0 Unknown, 0 Unchecked, 2.7s Time]
[2023-12-16 19:58:11,905 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 6648 states.
[2023-12-16 19:58:11,954 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 6648 to 6142.
[2023-12-16 19:58:11,962 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 6142 states, 6141 states have (on average 1.6686207458068718) internal successors, (10247), 6141 states have internal predecessors, (10247), 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)
[2023-12-16 19:58:11,968 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 6142 states to 6142 states and 10247 transitions.
[2023-12-16 19:58:11,968 INFO  L78                 Accepts]: Start accepts. Automaton has 6142 states and 10247 transitions. Word has length 4020
[2023-12-16 19:58:11,969 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-16 19:58:11,969 INFO  L495      AbstractCegarLoop]: Abstraction has 6142 states and 10247 transitions.
[2023-12-16 19:58:11,970 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 4 states, 4 states have (on average 1005.0) internal successors, (4020), 3 states have internal predecessors, (4020), 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)
[2023-12-16 19:58:11,971 INFO  L276                IsEmpty]: Start isEmpty. Operand 6142 states and 10247 transitions.
[2023-12-16 19:58:12,058 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 4022
[2023-12-16 19:58:12,058 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-16 19:58:12,060 INFO  L195           NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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[2023-12-16 19:58:12,113 INFO  L552       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0
[2023-12-16 19:58:12,278 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2023-12-16 19:58:12,279 INFO  L420      AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-16 19:58:12,279 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-16 19:58:12,280 INFO  L85        PathProgramCache]: Analyzing trace with hash -645554922, now seen corresponding path program 1 times
[2023-12-16 19:58:12,280 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-12-16 19:58:12,280 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1627106713]
[2023-12-16 19:58:12,281 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-16 19:58:12,281 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-12-16 19:58:12,649 ERROR L246   FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic
[2023-12-16 19:58:12,650 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [122807957]
[2023-12-16 19:58:12,650 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-16 19:58:12,651 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2023-12-16 19:58:12,651 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2023-12-16 19:58:12,658 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)
[2023-12-16 19:58:12,676 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process
[2023-12-16 19:58:16,810 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-16 19:58:16,933 INFO  L262         TraceCheckSpWp]: Trace formula consists of 17966 conjuncts, 10 conjunts are in the unsatisfiable core
[2023-12-16 19:58:16,989 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-12-16 19:58:18,389 INFO  L134       CoverageAnalysis]: Checked inductivity of 160 backedges. 160 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2023-12-16 19:58:18,389 INFO  L323         TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2023-12-16 19:58:18,389 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-12-16 19:58:18,389 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1627106713]
[2023-12-16 19:58:18,389 WARN  L311   FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT
[2023-12-16 19:58:18,389 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [122807957]
[2023-12-16 19:58:18,389 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleZ3 [122807957] provided 1 perfect and 0 imperfect interpolant sequences
[2023-12-16 19:58:18,389 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-12-16 19:58:18,390 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2023-12-16 19:58:18,390 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1551784839]
[2023-12-16 19:58:18,390 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-16 19:58:18,394 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2023-12-16 19:58:18,394 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-12-16 19:58:18,397 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2023-12-16 19:58:18,397 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2023-12-16 19:58:18,397 INFO  L87              Difference]: Start difference. First operand 6142 states and 10247 transitions. Second operand  has 4 states, 4 states have (on average 1005.25) internal successors, (4021), 3 states have internal predecessors, (4021), 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)
Received shutdown request...
[2023-12-16 19:58:19,959 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2023-12-16 19:58:19,959 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 4021 GetRequests, 4018 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20
[2023-12-16 19:58:19,960 INFO  L413           NwaCegarLoop]: 2562 mSDtfsCounter, 5486 mSDsluCounter, 913 mSDsCounter, 0 mSdLazyCounter, 1986 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5486 SdHoareTripleChecker+Valid, 3475 SdHoareTripleChecker+Invalid, 1986 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1986 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time
[2023-12-16 19:58:19,960 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [5486 Valid, 3475 Invalid, 1986 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1986 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time]
[2023-12-16 19:58:19,961 INFO  L805   garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining)
[2023-12-16 19:58:19,988 WARN  L340       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Timeout while monitored process is still running, waiting 1000 ms for graceful end
[2023-12-16 19:58:19,988 WARN  L340       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Timeout while monitored process is still running, waiting 1000 ms for graceful end
[2023-12-16 19:58:20,032 INFO  L540       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0
[2023-12-16 19:58:20,161 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2023-12-16 19:58:20,162 WARN  L619      AbstractCegarLoop]: Verification canceled: while NwaCegarLoop was constructing difference of abstraction (6142states) and FLOYD_HOARE automaton (currently 4 states, 4 states before enhancement),while ReachableStatesComputation was computing reachable states (3653 states constructed, input type IntersectNwa).
[2023-12-16 19:58:20,165 INFO  L445         BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1]
[2023-12-16 19:58:20,167 INFO  L179   ceAbstractionStarter]: Computing trace abstraction results
[2023-12-16 19:58:20,175 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 16.12 07:58:20 BoogieIcfgContainer
[2023-12-16 19:58:20,175 INFO  L131        PluginConnector]: ------------------------ END TraceAbstraction----------------------------
[2023-12-16 19:58:20,176 INFO  L158              Benchmark]: Toolchain (without parser) took 58142.71ms. Allocated memory was 429.9MB in the beginning and 5.9GB in the end (delta: 5.5GB). Free memory was 376.2MB in the beginning and 4.9GB in the end (delta: -4.5GB). Peak memory consumption was 956.3MB. Max. memory is 8.0GB.
[2023-12-16 19:58:20,176 INFO  L158              Benchmark]: CDTParser took 0.09ms. Allocated memory is still 215.0MB. Free memory is still 164.8MB. There was no memory consumed. Max. memory is 8.0GB.
[2023-12-16 19:58:20,176 INFO  L158              Benchmark]: CACSL2BoogieTranslator took 1305.18ms. Allocated memory was 429.9MB in the beginning and 859.8MB in the end (delta: 429.9MB). Free memory was 376.2MB in the beginning and 729.6MB in the end (delta: -353.4MB). Peak memory consumption was 251.7MB. Max. memory is 8.0GB.
[2023-12-16 19:58:20,176 INFO  L158              Benchmark]: Boogie Procedure Inliner took 2338.93ms. Allocated memory was 859.8MB in the beginning and 4.2GB in the end (delta: 3.4GB). Free memory was 729.1MB in the beginning and 3.8GB in the end (delta: -3.1GB). Peak memory consumption was 352.3MB. Max. memory is 8.0GB.
[2023-12-16 19:58:20,176 INFO  L158              Benchmark]: Boogie Preprocessor took 2238.00ms. Allocated memory is still 4.2GB. Free memory was 3.8GB in the beginning and 3.7GB in the end (delta: 145.8MB). Peak memory consumption was 295.7MB. Max. memory is 8.0GB.
[2023-12-16 19:58:20,176 INFO  L158              Benchmark]: RCFGBuilder took 10329.87ms. Allocated memory was 4.2GB in the beginning and 5.6GB in the end (delta: 1.4GB). Free memory was 3.7GB in the beginning and 4.7GB in the end (delta: -1.1GB). Peak memory consumption was 349.4MB. Max. memory is 8.0GB.
[2023-12-16 19:58:20,177 INFO  L158              Benchmark]: TraceAbstraction took 41926.13ms. Allocated memory was 5.6GB in the beginning and 5.9GB in the end (delta: 285.2MB). Free memory was 4.7GB in the beginning and 4.9GB in the end (delta: -158.0MB). Peak memory consumption was 127.7MB. Max. memory is 8.0GB.
[2023-12-16 19:58:20,178 INFO  L338   ainManager$Toolchain]: #######################  End [Toolchain 1] #######################
 --- Results ---
 * Results from de.uni_freiburg.informatik.ultimate.core:
  - StatisticsResult: Toolchain Benchmarks
    Benchmark results are:
 * CDTParser took 0.09ms. Allocated memory is still 215.0MB. Free memory is still 164.8MB. There was no memory consumed. Max. memory is 8.0GB.
 * CACSL2BoogieTranslator took 1305.18ms. Allocated memory was 429.9MB in the beginning and 859.8MB in the end (delta: 429.9MB). Free memory was 376.2MB in the beginning and 729.6MB in the end (delta: -353.4MB). Peak memory consumption was 251.7MB. Max. memory is 8.0GB.
 * Boogie Procedure Inliner took 2338.93ms. Allocated memory was 859.8MB in the beginning and 4.2GB in the end (delta: 3.4GB). Free memory was 729.1MB in the beginning and 3.8GB in the end (delta: -3.1GB). Peak memory consumption was 352.3MB. Max. memory is 8.0GB.
 * Boogie Preprocessor took 2238.00ms. Allocated memory is still 4.2GB. Free memory was 3.8GB in the beginning and 3.7GB in the end (delta: 145.8MB). Peak memory consumption was 295.7MB. Max. memory is 8.0GB.
 * RCFGBuilder took 10329.87ms. Allocated memory was 4.2GB in the beginning and 5.6GB in the end (delta: 1.4GB). Free memory was 3.7GB in the beginning and 4.7GB in the end (delta: -1.1GB). Peak memory consumption was 349.4MB. Max. memory is 8.0GB.
 * TraceAbstraction took 41926.13ms. Allocated memory was 5.6GB in the beginning and 5.9GB in the end (delta: 285.2MB). Free memory was 4.7GB in the beginning and 4.9GB in the end (delta: -158.0MB). Peak memory consumption was 127.7MB. 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
  - TimeoutResultAtElement [Line: 21]: Timeout (TraceAbstraction)
    Unable to prove that a call to reach_error is unreachable (line 21). Cancelled while NwaCegarLoop was constructing difference of abstraction (6142states) and FLOYD_HOARE automaton (currently 4 states, 4 states before enhancement),while ReachableStatesComputation was computing reachable states (3653 states constructed, input type IntersectNwa).
  - StatisticsResult: Ultimate Automizer benchmark data
    CFG has 1 procedures, 5907 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 41.9s, OverallIterations: 8, TraceHistogramMax: 2, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.6s, AutomataDifference: 11.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 109605 SdHoareTripleChecker+Valid, 9.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 109605 mSDsluCounter, 171783 SdHoareTripleChecker+Invalid, 7.5s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 102870 mSDsCounter, 3 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 11244 IncrementalHoareTripleChecker+Invalid, 11247 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 3 mSolverCounterUnsat, 68913 mSDtfsCounter, 11244 mSolverCounterSat, 0.4s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 16102 GetRequests, 16075 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=6142occurred in iteration=4, InterpolantAutomatonStates: 31, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.8s AutomataMinimizationTime, 7 MinimizatonAttempts, 12862 StatesRemovedByMinimization, 6 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 4.5s SsaConstructionTime, 10.2s SatisfiabilityAnalysisTime, 9.0s InterpolantComputationTime, 17316 NumberOfCodeBlocks, 17316 NumberOfCodeBlocksAsserted, 8 NumberOfCheckSat, 17308 ConstructedInterpolants, 0 QuantifiedInterpolants, 32419 SizeOfPredicates, 4 NumberOfNonLiveVariables, 71858 ConjunctsInSsa, 40 ConjunctsInUnsatCore, 8 InterpolantComputations, 8 PerfectInterpolantSequences, 640/640 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: Timeout
Completed graceful shutdown