./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/unreach-call.prp --file ../../../trunk/examples/svcomp/heap-data/shared_mem1.i --full-output --architecture 32bit
--------------------------------------------------------------------------------
Checking for ERROR reachability
Using default analysis
Version c4f91361
Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../../../trunk/examples/svcomp/heap-data/shared_mem1.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) )
--witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 47cb7cab177485da5df0f1af4a3f61fd7eb970990493dd3ac764f888774cbf0f
--- Real Ultimate output ---
This is Ultimate 0.2.3-dev-c4f9136-m
[2023-11-23 15:05:35,028 INFO L188 SettingsManager]: Resetting all preferences to default values...
[2023-11-23 15:05:35,079 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf
[2023-11-23 15:05:35,087 WARN L101 SettingsManager]: Preference file contains the following unknown settings:
[2023-11-23 15:05:35,089 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class
[2023-11-23 15:05:35,121 INFO L130 SettingsManager]: Preferences different from defaults after loading the file:
[2023-11-23 15:05:35,121 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults:
[2023-11-23 15:05:35,122 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR;
[2023-11-23 15:05:35,122 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults:
[2023-11-23 15:05:35,122 INFO L153 SettingsManager]: * Use memory slicer=true
[2023-11-23 15:05:35,123 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults:
[2023-11-23 15:05:35,123 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS
[2023-11-23 15:05:35,123 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2023-11-23 15:05:35,124 INFO L153 SettingsManager]: * Create parallel compositions if possible=false
[2023-11-23 15:05:35,124 INFO L153 SettingsManager]: * Use SBE=true
[2023-11-23 15:05:35,124 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2023-11-23 15:05:35,125 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE
[2023-11-23 15:05:35,125 INFO L153 SettingsManager]: * sizeof long=4
[2023-11-23 15:05:35,129 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true
[2023-11-23 15:05:35,129 INFO L153 SettingsManager]: * sizeof POINTER=4
[2023-11-23 15:05:35,129 INFO L153 SettingsManager]: * Check division by zero=IGNORE
[2023-11-23 15:05:35,130 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE
[2023-11-23 15:05:35,130 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE
[2023-11-23 15:05:35,130 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE
[2023-11-23 15:05:35,130 INFO L153 SettingsManager]: * sizeof long double=12
[2023-11-23 15:05:35,131 INFO L153 SettingsManager]: * Check if freed pointer was valid=false
[2023-11-23 15:05:35,131 INFO L153 SettingsManager]: * Use constant arrays=true
[2023-11-23 15:05:35,132 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2023-11-23 15:05:35,132 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements
[2023-11-23 15:05:35,132 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true
[2023-11-23 15:05:35,133 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode
[2023-11-23 15:05:35,133 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2023-11-23 15:05:35,133 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2023-11-23 15:05:35,134 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP
[2023-11-23 15:05:35,134 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads
[2023-11-23 15:05:35,134 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL
[2023-11-23 15:05:35,134 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2023-11-23 15:05:35,134 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false
[2023-11-23 15:05:35,135 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET
[2023-11-23 15:05:35,135 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true
[2023-11-23 15:05:35,135 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO
[2023-11-23 15:05:35,135 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode
[2023-11-23 15:05:35,136 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$1
WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations
WARNING: All illegal access operations will be denied in a future release
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) )
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 47cb7cab177485da5df0f1af4a3f61fd7eb970990493dd3ac764f888774cbf0f
[2023-11-23 15:05:35,341 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp
[2023-11-23 15:05:35,359 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2023-11-23 15:05:35,361 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2023-11-23 15:05:35,362 INFO L270 PluginConnector]: Initializing CDTParser...
[2023-11-23 15:05:35,362 INFO L274 PluginConnector]: CDTParser initialized
[2023-11-23 15:05:35,364 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/heap-data/shared_mem1.i
[2023-11-23 15:05:36,464 INFO L533 CDTParser]: Created temporary CDT project at NULL
[2023-11-23 15:05:36,693 INFO L384 CDTParser]: Found 1 translation units.
[2023-11-23 15:05:36,694 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/heap-data/shared_mem1.i
[2023-11-23 15:05:36,705 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/168e82876/77971cbb01714472bdec5410e3eb0cf3/FLAG7c679877b
[2023-11-23 15:05:36,717 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/168e82876/77971cbb01714472bdec5410e3eb0cf3
[2023-11-23 15:05:36,719 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2023-11-23 15:05:36,721 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements.
[2023-11-23 15:05:36,722 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2023-11-23 15:05:36,722 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator...
[2023-11-23 15:05:36,726 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized
[2023-11-23 15:05:36,727 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 03:05:36" (1/1) ...
[2023-11-23 15:05:36,754 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7e641d34 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:05:36, skipping insertion in model container
[2023-11-23 15:05:36,754 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 03:05:36" (1/1) ...
[2023-11-23 15:05:36,803 INFO L177 MainTranslator]: Built tables and reachable declarations
[2023-11-23 15:05:37,106 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/heap-data/shared_mem1.i[23879,23892]
[2023-11-23 15:05:37,111 INFO L209 PostProcessor]: Analyzing one entry point: main
[2023-11-23 15:05:37,123 INFO L202 MainTranslator]: Completed pre-run
[2023-11-23 15:05:37,159 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/heap-data/shared_mem1.i[23879,23892]
[2023-11-23 15:05:37,160 INFO L209 PostProcessor]: Analyzing one entry point: main
[2023-11-23 15:05:37,183 INFO L206 MainTranslator]: Completed translation
[2023-11-23 15:05:37,183 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:05:37 WrapperNode
[2023-11-23 15:05:37,183 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2023-11-23 15:05:37,184 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner----------------------------
[2023-11-23 15:05:37,185 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner...
[2023-11-23 15:05:37,185 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized
[2023-11-23 15:05:37,191 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:05:37" (1/1) ...
[2023-11-23 15:05:37,201 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:05:37" (1/1) ...
[2023-11-23 15:05:37,229 INFO L138 Inliner]: procedures = 121, calls = 30, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 83
[2023-11-23 15:05:37,230 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner----------------------------
[2023-11-23 15:05:37,231 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2023-11-23 15:05:37,231 INFO L270 PluginConnector]: Initializing Boogie Preprocessor...
[2023-11-23 15:05:37,231 INFO L274 PluginConnector]: Boogie Preprocessor initialized
[2023-11-23 15:05:37,242 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:05:37" (1/1) ...
[2023-11-23 15:05:37,243 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:05:37" (1/1) ...
[2023-11-23 15:05:37,245 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:05:37" (1/1) ...
[2023-11-23 15:05:37,261 INFO L175 MemorySlicer]: Split 23 memory accesses to 2 slices as follows [2, 21]. 91 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2, 0]. The 10 writes are split as follows [0, 10].
[2023-11-23 15:05:37,261 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:05:37" (1/1) ...
[2023-11-23 15:05:37,261 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:05:37" (1/1) ...
[2023-11-23 15:05:37,268 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:05:37" (1/1) ...
[2023-11-23 15:05:37,270 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:05:37" (1/1) ...
[2023-11-23 15:05:37,272 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:05:37" (1/1) ...
[2023-11-23 15:05:37,273 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:05:37" (1/1) ...
[2023-11-23 15:05:37,275 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2023-11-23 15:05:37,275 INFO L112 PluginConnector]: ------------------------RCFGBuilder----------------------------
[2023-11-23 15:05:37,276 INFO L270 PluginConnector]: Initializing RCFGBuilder...
[2023-11-23 15:05:37,276 INFO L274 PluginConnector]: RCFGBuilder initialized
[2023-11-23 15:05:37,288 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:05:37" (1/1) ...
[2023-11-23 15:05:37,294 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2023-11-23 15:05:37,305 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2023-11-23 15:05:37,326 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null)
[2023-11-23 15:05:37,328 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process
[2023-11-23 15:05:37,367 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0
[2023-11-23 15:05:37,368 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1
[2023-11-23 15:05:37,369 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0
[2023-11-23 15:05:37,369 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1
[2023-11-23 15:05:37,369 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap
[2023-11-23 15:05:37,369 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit
[2023-11-23 15:05:37,369 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0
[2023-11-23 15:05:37,369 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1
[2023-11-23 15:05:37,370 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0
[2023-11-23 15:05:37,370 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1
[2023-11-23 15:05:37,370 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0
[2023-11-23 15:05:37,370 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1
[2023-11-23 15:05:37,370 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2023-11-23 15:05:37,370 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2023-11-23 15:05:37,466 INFO L241 CfgBuilder]: Building ICFG
[2023-11-23 15:05:37,468 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation
[2023-11-23 15:05:37,614 INFO L282 CfgBuilder]: Performing block encoding
[2023-11-23 15:05:37,639 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2023-11-23 15:05:37,639 INFO L309 CfgBuilder]: Removed 2 assume(true) statements.
[2023-11-23 15:05:37,640 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 03:05:37 BoogieIcfgContainer
[2023-11-23 15:05:37,640 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2023-11-23 15:05:37,642 INFO L112 PluginConnector]: ------------------------TraceAbstraction----------------------------
[2023-11-23 15:05:37,642 INFO L270 PluginConnector]: Initializing TraceAbstraction...
[2023-11-23 15:05:37,645 INFO L274 PluginConnector]: TraceAbstraction initialized
[2023-11-23 15:05:37,645 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 03:05:36" (1/3) ...
[2023-11-23 15:05:37,646 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7537894 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 03:05:37, skipping insertion in model container
[2023-11-23 15:05:37,646 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:05:37" (2/3) ...
[2023-11-23 15:05:37,647 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7537894 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 03:05:37, skipping insertion in model container
[2023-11-23 15:05:37,647 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 03:05:37" (3/3) ...
[2023-11-23 15:05:37,650 INFO L112 eAbstractionObserver]: Analyzing ICFG shared_mem1.i
[2023-11-23 15:05:37,667 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2023-11-23 15:05:37,667 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations.
[2023-11-23 15:05:37,703 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ========
[2023-11-23 15:05:37,709 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;@1d09aed8, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms]
[2023-11-23 15:05:37,709 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations.
[2023-11-23 15:05:37,713 INFO L276 IsEmpty]: Start isEmpty. Operand has 15 states, 13 states have (on average 1.6923076923076923) internal successors, (22), 14 states have internal predecessors, (22), 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)
[2023-11-23 15:05:37,717 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10
[2023-11-23 15:05:37,717 INFO L187 NwaCegarLoop]: Found error trace
[2023-11-23 15:05:37,718 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1]
[2023-11-23 15:05:37,718 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-11-23 15:05:37,722 INFO L160 PredicateUnifier]: Initialized classic predicate unifier
[2023-11-23 15:05:37,723 INFO L85 PathProgramCache]: Analyzing trace with hash -1630425053, now seen corresponding path program 1 times
[2023-11-23 15:05:37,731 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-11-23 15:05:37,732 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [745024483]
[2023-11-23 15:05:37,732 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-11-23 15:05:37,733 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-11-23 15:05:37,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-23 15:05:37,996 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2023-11-23 15:05:37,997 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-11-23 15:05:37,997 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [745024483]
[2023-11-23 15:05:37,998 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [745024483] provided 1 perfect and 0 imperfect interpolant sequences
[2023-11-23 15:05:37,998 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-11-23 15:05:37,998 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2023-11-23 15:05:38,000 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1127327022]
[2023-11-23 15:05:38,002 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-11-23 15:05:38,006 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states
[2023-11-23 15:05:38,007 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-11-23 15:05:38,039 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants.
[2023-11-23 15:05:38,040 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2
[2023-11-23 15:05:38,042 INFO L87 Difference]: Start difference. First operand has 15 states, 13 states have (on average 1.6923076923076923) internal successors, (22), 14 states have internal predecessors, (22), 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 2 states, 2 states have (on average 4.5) internal successors, (9), 2 states have internal predecessors, (9), 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)
[2023-11-23 15:05:38,080 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-11-23 15:05:38,081 INFO L93 Difference]: Finished difference Result 25 states and 36 transitions.
[2023-11-23 15:05:38,082 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states.
[2023-11-23 15:05:38,083 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 4.5) internal successors, (9), 2 states have internal predecessors, (9), 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 9
[2023-11-23 15:05:38,084 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2023-11-23 15:05:38,090 INFO L225 Difference]: With dead ends: 25
[2023-11-23 15:05:38,090 INFO L226 Difference]: Without dead ends: 13
[2023-11-23 15:05:38,093 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2
[2023-11-23 15:05:38,097 INFO L413 NwaCegarLoop]: 17 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 17 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2023-11-23 15:05:38,098 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 17 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2023-11-23 15:05:38,113 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13 states.
[2023-11-23 15:05:38,121 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13 to 13.
[2023-11-23 15:05:38,123 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13 states, 12 states have (on average 1.4166666666666667) internal successors, (17), 12 states have internal predecessors, (17), 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)
[2023-11-23 15:05:38,123 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 17 transitions.
[2023-11-23 15:05:38,125 INFO L78 Accepts]: Start accepts. Automaton has 13 states and 17 transitions. Word has length 9
[2023-11-23 15:05:38,125 INFO L84 Accepts]: Finished accepts. word is rejected.
[2023-11-23 15:05:38,125 INFO L495 AbstractCegarLoop]: Abstraction has 13 states and 17 transitions.
[2023-11-23 15:05:38,125 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 4.5) internal successors, (9), 2 states have internal predecessors, (9), 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)
[2023-11-23 15:05:38,127 INFO L276 IsEmpty]: Start isEmpty. Operand 13 states and 17 transitions.
[2023-11-23 15:05:38,127 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11
[2023-11-23 15:05:38,127 INFO L187 NwaCegarLoop]: Found error trace
[2023-11-23 15:05:38,127 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2023-11-23 15:05:38,128 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0
[2023-11-23 15:05:38,128 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-11-23 15:05:38,129 INFO L160 PredicateUnifier]: Initialized classic predicate unifier
[2023-11-23 15:05:38,129 INFO L85 PathProgramCache]: Analyzing trace with hash -137983455, now seen corresponding path program 1 times
[2023-11-23 15:05:38,129 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-11-23 15:05:38,129 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1058424143]
[2023-11-23 15:05:38,129 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-11-23 15:05:38,130 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-11-23 15:05:38,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-23 15:05:38,995 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2023-11-23 15:05:38,996 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-11-23 15:05:38,996 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1058424143]
[2023-11-23 15:05:38,997 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1058424143] provided 1 perfect and 0 imperfect interpolant sequences
[2023-11-23 15:05:38,997 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-11-23 15:05:38,997 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7
[2023-11-23 15:05:38,997 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1604865581]
[2023-11-23 15:05:38,997 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-11-23 15:05:38,999 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states
[2023-11-23 15:05:39,004 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-11-23 15:05:39,005 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2023-11-23 15:05:39,005 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56
[2023-11-23 15:05:39,005 INFO L87 Difference]: Start difference. First operand 13 states and 17 transitions. Second operand has 8 states, 8 states have (on average 1.25) internal successors, (10), 7 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-11-23 15:05:39,200 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-11-23 15:05:39,200 INFO L93 Difference]: Finished difference Result 30 states and 39 transitions.
[2023-11-23 15:05:39,200 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states.
[2023-11-23 15:05:39,201 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 1.25) internal successors, (10), 7 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 10
[2023-11-23 15:05:39,201 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2023-11-23 15:05:39,202 INFO L225 Difference]: With dead ends: 30
[2023-11-23 15:05:39,203 INFO L226 Difference]: Without dead ends: 28
[2023-11-23 15:05:39,203 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110
[2023-11-23 15:05:39,204 INFO L413 NwaCegarLoop]: 8 mSDtfsCounter, 25 mSDsluCounter, 40 mSDsCounter, 0 mSdLazyCounter, 56 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 25 SdHoareTripleChecker+Valid, 48 SdHoareTripleChecker+Invalid, 59 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 56 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2023-11-23 15:05:39,205 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [25 Valid, 48 Invalid, 59 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 56 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2023-11-23 15:05:39,206 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28 states.
[2023-11-23 15:05:39,210 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28 to 23.
[2023-11-23 15:05:39,210 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23 states, 22 states have (on average 1.4090909090909092) internal successors, (31), 22 states have internal predecessors, (31), 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)
[2023-11-23 15:05:39,211 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 31 transitions.
[2023-11-23 15:05:39,211 INFO L78 Accepts]: Start accepts. Automaton has 23 states and 31 transitions. Word has length 10
[2023-11-23 15:05:39,211 INFO L84 Accepts]: Finished accepts. word is rejected.
[2023-11-23 15:05:39,211 INFO L495 AbstractCegarLoop]: Abstraction has 23 states and 31 transitions.
[2023-11-23 15:05:39,212 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 1.25) internal successors, (10), 7 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-11-23 15:05:39,212 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 31 transitions.
[2023-11-23 15:05:39,212 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11
[2023-11-23 15:05:39,212 INFO L187 NwaCegarLoop]: Found error trace
[2023-11-23 15:05:39,213 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2023-11-23 15:05:39,213 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1
[2023-11-23 15:05:39,213 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-11-23 15:05:39,214 INFO L160 PredicateUnifier]: Initialized classic predicate unifier
[2023-11-23 15:05:39,214 INFO L85 PathProgramCache]: Analyzing trace with hash -137981533, now seen corresponding path program 1 times
[2023-11-23 15:05:39,214 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-11-23 15:05:39,214 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1978529669]
[2023-11-23 15:05:39,214 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-11-23 15:05:39,215 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-11-23 15:05:39,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-23 15:05:39,588 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2023-11-23 15:05:39,589 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-11-23 15:05:39,590 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1978529669]
[2023-11-23 15:05:39,590 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1978529669] provided 1 perfect and 0 imperfect interpolant sequences
[2023-11-23 15:05:39,590 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-11-23 15:05:39,591 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6
[2023-11-23 15:05:39,591 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [399985130]
[2023-11-23 15:05:39,591 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-11-23 15:05:39,592 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states
[2023-11-23 15:05:39,592 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-11-23 15:05:39,593 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants.
[2023-11-23 15:05:39,595 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42
[2023-11-23 15:05:39,596 INFO L87 Difference]: Start difference. First operand 23 states and 31 transitions. Second operand has 7 states, 7 states have (on average 1.4285714285714286) internal successors, (10), 6 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-11-23 15:05:39,745 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-11-23 15:05:39,745 INFO L93 Difference]: Finished difference Result 32 states and 43 transitions.
[2023-11-23 15:05:39,747 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states.
[2023-11-23 15:05:39,747 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 1.4285714285714286) internal successors, (10), 6 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 10
[2023-11-23 15:05:39,747 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2023-11-23 15:05:39,747 INFO L225 Difference]: With dead ends: 32
[2023-11-23 15:05:39,747 INFO L226 Difference]: Without dead ends: 25
[2023-11-23 15:05:39,750 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=59, Unknown=0, NotChecked=0, Total=90
[2023-11-23 15:05:39,752 INFO L413 NwaCegarLoop]: 9 mSDtfsCounter, 14 mSDsluCounter, 35 mSDsCounter, 0 mSdLazyCounter, 49 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 14 SdHoareTripleChecker+Valid, 44 SdHoareTripleChecker+Invalid, 51 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 49 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2023-11-23 15:05:39,753 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [14 Valid, 44 Invalid, 51 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 49 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2023-11-23 15:05:39,755 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25 states.
[2023-11-23 15:05:39,758 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25 to 23.
[2023-11-23 15:05:39,759 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23 states, 22 states have (on average 1.3636363636363635) internal successors, (30), 22 states have internal predecessors, (30), 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)
[2023-11-23 15:05:39,760 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 30 transitions.
[2023-11-23 15:05:39,760 INFO L78 Accepts]: Start accepts. Automaton has 23 states and 30 transitions. Word has length 10
[2023-11-23 15:05:39,761 INFO L84 Accepts]: Finished accepts. word is rejected.
[2023-11-23 15:05:39,761 INFO L495 AbstractCegarLoop]: Abstraction has 23 states and 30 transitions.
[2023-11-23 15:05:39,761 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 1.4285714285714286) internal successors, (10), 6 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-11-23 15:05:39,761 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 30 transitions.
[2023-11-23 15:05:39,762 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15
[2023-11-23 15:05:39,762 INFO L187 NwaCegarLoop]: Found error trace
[2023-11-23 15:05:39,763 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2023-11-23 15:05:39,763 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2
[2023-11-23 15:05:39,763 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-11-23 15:05:39,765 INFO L160 PredicateUnifier]: Initialized classic predicate unifier
[2023-11-23 15:05:39,766 INFO L85 PathProgramCache]: Analyzing trace with hash 984642488, now seen corresponding path program 1 times
[2023-11-23 15:05:39,766 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-11-23 15:05:39,766 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [329287144]
[2023-11-23 15:05:39,766 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-11-23 15:05:39,767 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-11-23 15:05:39,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-23 15:05:40,445 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2023-11-23 15:05:40,445 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-11-23 15:05:40,446 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [329287144]
[2023-11-23 15:05:40,446 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [329287144] provided 0 perfect and 1 imperfect interpolant sequences
[2023-11-23 15:05:40,446 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [768822121]
[2023-11-23 15:05:40,446 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-11-23 15:05:40,446 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2023-11-23 15:05:40,447 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2023-11-23 15:05:40,452 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)
[2023-11-23 15:05:40,504 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process
[2023-11-23 15:05:40,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-23 15:05:40,599 INFO L262 TraceCheckSpWp]: Trace formula consists of 183 conjuncts, 45 conjunts are in the unsatisfiable core
[2023-11-23 15:05:40,608 INFO L285 TraceCheckSpWp]: Computing forward predicates...
[2023-11-23 15:05:40,686 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 15
[2023-11-23 15:05:40,696 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 15
[2023-11-23 15:05:40,726 INFO L349 Elim1Store]: treesize reduction 15, result has 25.0 percent of original size
[2023-11-23 15:05:40,728 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 19 treesize of output 18
[2023-11-23 15:05:40,752 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 32
[2023-11-23 15:05:40,781 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 37 treesize of output 11
[2023-11-23 15:05:41,005 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 32
[2023-11-23 15:05:41,014 INFO L190 IndexEqualityManager]: detected not equals via solver
[2023-11-23 15:05:41,019 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 37 treesize of output 32
[2023-11-23 15:05:41,030 INFO L190 IndexEqualityManager]: detected not equals via solver
[2023-11-23 15:05:41,036 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 21
[2023-11-23 15:05:41,045 INFO L190 IndexEqualityManager]: detected not equals via solver
[2023-11-23 15:05:41,049 INFO L190 IndexEqualityManager]: detected not equals via solver
[2023-11-23 15:05:41,051 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 37 treesize of output 37
[2023-11-23 15:05:41,070 INFO L349 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size
[2023-11-23 15:05:41,070 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 16 treesize of output 14
[2023-11-23 15:05:41,081 INFO L190 IndexEqualityManager]: detected not equals via solver
[2023-11-23 15:05:41,093 INFO L349 Elim1Store]: treesize reduction 19, result has 36.7 percent of original size
[2023-11-23 15:05:41,094 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 27 treesize of output 25
[2023-11-23 15:05:41,103 INFO L190 IndexEqualityManager]: detected not equals via solver
[2023-11-23 15:05:41,104 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 11
[2023-11-23 15:05:41,115 INFO L190 IndexEqualityManager]: detected not equals via solver
[2023-11-23 15:05:41,124 INFO L349 Elim1Store]: treesize reduction 17, result has 29.2 percent of original size
[2023-11-23 15:05:41,124 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 21 treesize of output 30
[2023-11-23 15:05:41,155 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7
[2023-11-23 15:05:41,327 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 49 treesize of output 33
[2023-11-23 15:05:41,335 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 44 treesize of output 27
[2023-11-23 15:05:41,340 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 20
[2023-11-23 15:05:41,395 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 12
[2023-11-23 15:05:41,401 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2023-11-23 15:05:41,401 INFO L327 TraceCheckSpWp]: Computing backward predicates...
[2023-11-23 15:05:41,484 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size
[2023-11-23 15:05:41,485 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 2 case distinctions, treesize of input 171 treesize of output 172
[2023-11-23 15:05:41,654 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2023-11-23 15:05:41,655 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [768822121] provided 0 perfect and 2 imperfect interpolant sequences
[2023-11-23 15:05:41,655 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences.
[2023-11-23 15:05:41,655 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 6, 6] total 15
[2023-11-23 15:05:41,655 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1035685804]
[2023-11-23 15:05:41,655 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton
[2023-11-23 15:05:41,656 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states
[2023-11-23 15:05:41,656 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-11-23 15:05:41,657 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants.
[2023-11-23 15:05:41,657 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=52, Invalid=188, Unknown=0, NotChecked=0, Total=240
[2023-11-23 15:05:41,657 INFO L87 Difference]: Start difference. First operand 23 states and 30 transitions. Second operand has 16 states, 16 states have (on average 2.3125) internal successors, (37), 15 states have internal predecessors, (37), 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)
[2023-11-23 15:05:43,050 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-11-23 15:05:43,050 INFO L93 Difference]: Finished difference Result 43 states and 56 transitions.
[2023-11-23 15:05:43,051 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states.
[2023-11-23 15:05:43,051 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 2.3125) internal successors, (37), 15 states have internal predecessors, (37), 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 14
[2023-11-23 15:05:43,051 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2023-11-23 15:05:43,052 INFO L225 Difference]: With dead ends: 43
[2023-11-23 15:05:43,052 INFO L226 Difference]: Without dead ends: 33
[2023-11-23 15:05:43,052 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 75 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=133, Invalid=373, Unknown=0, NotChecked=0, Total=506
[2023-11-23 15:05:43,053 INFO L413 NwaCegarLoop]: 8 mSDtfsCounter, 78 mSDsluCounter, 47 mSDsCounter, 0 mSdLazyCounter, 81 mSolverCounterSat, 28 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 78 SdHoareTripleChecker+Valid, 55 SdHoareTripleChecker+Invalid, 110 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 28 IncrementalHoareTripleChecker+Valid, 81 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time
[2023-11-23 15:05:43,053 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [78 Valid, 55 Invalid, 110 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [28 Valid, 81 Invalid, 1 Unknown, 0 Unchecked, 0.9s Time]
[2023-11-23 15:05:43,054 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33 states.
[2023-11-23 15:05:43,057 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33 to 27.
[2023-11-23 15:05:43,058 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 27 states, 26 states have (on average 1.3076923076923077) internal successors, (34), 26 states have internal predecessors, (34), 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)
[2023-11-23 15:05:43,058 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 34 transitions.
[2023-11-23 15:05:43,059 INFO L78 Accepts]: Start accepts. Automaton has 27 states and 34 transitions. Word has length 14
[2023-11-23 15:05:43,059 INFO L84 Accepts]: Finished accepts. word is rejected.
[2023-11-23 15:05:43,059 INFO L495 AbstractCegarLoop]: Abstraction has 27 states and 34 transitions.
[2023-11-23 15:05:43,059 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 2.3125) internal successors, (37), 15 states have internal predecessors, (37), 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)
[2023-11-23 15:05:43,059 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 34 transitions.
[2023-11-23 15:05:43,060 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15
[2023-11-23 15:05:43,060 INFO L187 NwaCegarLoop]: Found error trace
[2023-11-23 15:05:43,060 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2023-11-23 15:05:43,078 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0
[2023-11-23 15:05:43,261 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2023-11-23 15:05:43,261 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-11-23 15:05:43,261 INFO L160 PredicateUnifier]: Initialized classic predicate unifier
[2023-11-23 15:05:43,262 INFO L85 PathProgramCache]: Analyzing trace with hash 984644410, now seen corresponding path program 1 times
[2023-11-23 15:05:43,262 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-11-23 15:05:43,262 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1048204314]
[2023-11-23 15:05:43,262 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-11-23 15:05:43,262 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-11-23 15:05:43,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-23 15:05:43,806 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2023-11-23 15:05:43,806 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-11-23 15:05:43,806 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1048204314]
[2023-11-23 15:05:43,806 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1048204314] provided 0 perfect and 1 imperfect interpolant sequences
[2023-11-23 15:05:43,806 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1046588824]
[2023-11-23 15:05:43,806 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-11-23 15:05:43,806 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2023-11-23 15:05:43,807 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2023-11-23 15:05:43,813 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)
[2023-11-23 15:05:43,835 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process
[2023-11-23 15:05:43,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-23 15:05:43,928 INFO L262 TraceCheckSpWp]: Trace formula consists of 180 conjuncts, 47 conjunts are in the unsatisfiable core
[2023-11-23 15:05:43,933 INFO L285 TraceCheckSpWp]: Computing forward predicates...
[2023-11-23 15:05:43,958 INFO L349 Elim1Store]: treesize reduction 15, result has 25.0 percent of original size
[2023-11-23 15:05:43,958 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 19 treesize of output 18
[2023-11-23 15:05:43,969 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 7
[2023-11-23 15:05:43,977 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 7
[2023-11-23 15:05:44,008 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 45 treesize of output 7
[2023-11-23 15:05:44,143 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 30
[2023-11-23 15:05:44,152 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 28
[2023-11-23 15:05:44,164 INFO L190 IndexEqualityManager]: detected not equals via solver
[2023-11-23 15:05:44,169 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 19
[2023-11-23 15:05:44,174 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 18
[2023-11-23 15:05:44,185 INFO L190 IndexEqualityManager]: detected not equals via solver
[2023-11-23 15:05:44,189 INFO L190 IndexEqualityManager]: detected not equals via solver
[2023-11-23 15:05:44,190 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 33
[2023-11-23 15:05:44,196 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 11
[2023-11-23 15:05:44,207 INFO L190 IndexEqualityManager]: detected not equals via solver
[2023-11-23 15:05:44,210 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 14
[2023-11-23 15:05:44,224 INFO L349 Elim1Store]: treesize reduction 4, result has 66.7 percent of original size
[2023-11-23 15:05:44,224 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 20 treesize of output 18
[2023-11-23 15:05:44,238 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 11
[2023-11-23 15:05:44,246 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7
[2023-11-23 15:05:44,503 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 76 treesize of output 48
[2023-11-23 15:05:44,511 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 44 treesize of output 27
[2023-11-23 15:05:44,518 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 39 treesize of output 23
[2023-11-23 15:05:44,570 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 12
[2023-11-23 15:05:44,575 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2023-11-23 15:05:44,575 INFO L327 TraceCheckSpWp]: Computing backward predicates...
[2023-11-23 15:05:44,672 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size
[2023-11-23 15:05:44,672 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 2 case distinctions, treesize of input 241 treesize of output 236
[2023-11-23 15:05:44,691 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size
[2023-11-23 15:05:44,692 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 2 case distinctions, treesize of input 223 treesize of output 212
[2023-11-23 15:05:44,924 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2023-11-23 15:05:44,924 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1046588824] provided 0 perfect and 2 imperfect interpolant sequences
[2023-11-23 15:05:44,925 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences.
[2023-11-23 15:05:44,925 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 6, 6] total 15
[2023-11-23 15:05:44,925 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1059093556]
[2023-11-23 15:05:44,925 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton
[2023-11-23 15:05:44,926 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states
[2023-11-23 15:05:44,926 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-11-23 15:05:44,929 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants.
[2023-11-23 15:05:44,929 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=180, Unknown=2, NotChecked=0, Total=240
[2023-11-23 15:05:44,929 INFO L87 Difference]: Start difference. First operand 27 states and 34 transitions. Second operand has 16 states, 16 states have (on average 2.25) internal successors, (36), 15 states have internal predecessors, (36), 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)
[2023-11-23 15:05:46,307 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-11-23 15:05:46,307 INFO L93 Difference]: Finished difference Result 36 states and 46 transitions.
[2023-11-23 15:05:46,307 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states.
[2023-11-23 15:05:46,308 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 2.25) internal successors, (36), 15 states have internal predecessors, (36), 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 14
[2023-11-23 15:05:46,308 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2023-11-23 15:05:46,308 INFO L225 Difference]: With dead ends: 36
[2023-11-23 15:05:46,308 INFO L226 Difference]: Without dead ends: 29
[2023-11-23 15:05:46,309 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 70 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=136, Invalid=368, Unknown=2, NotChecked=0, Total=506
[2023-11-23 15:05:46,309 INFO L413 NwaCegarLoop]: 14 mSDtfsCounter, 37 mSDsluCounter, 70 mSDsCounter, 0 mSdLazyCounter, 97 mSolverCounterSat, 11 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 37 SdHoareTripleChecker+Valid, 84 SdHoareTripleChecker+Invalid, 109 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 97 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time
[2023-11-23 15:05:46,310 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [37 Valid, 84 Invalid, 109 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 97 Invalid, 1 Unknown, 0 Unchecked, 1.0s Time]
[2023-11-23 15:05:46,310 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29 states.
[2023-11-23 15:05:46,313 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29 to 18.
[2023-11-23 15:05:46,313 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18 states, 17 states have (on average 1.2941176470588236) internal successors, (22), 17 states have internal predecessors, (22), 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)
[2023-11-23 15:05:46,314 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 22 transitions.
[2023-11-23 15:05:46,314 INFO L78 Accepts]: Start accepts. Automaton has 18 states and 22 transitions. Word has length 14
[2023-11-23 15:05:46,314 INFO L84 Accepts]: Finished accepts. word is rejected.
[2023-11-23 15:05:46,314 INFO L495 AbstractCegarLoop]: Abstraction has 18 states and 22 transitions.
[2023-11-23 15:05:46,314 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 2.25) internal successors, (36), 15 states have internal predecessors, (36), 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)
[2023-11-23 15:05:46,314 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 22 transitions.
[2023-11-23 15:05:46,315 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16
[2023-11-23 15:05:46,315 INFO L187 NwaCegarLoop]: Found error trace
[2023-11-23 15:05:46,315 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1]
[2023-11-23 15:05:46,335 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0
[2023-11-23 15:05:46,527 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2023-11-23 15:05:46,528 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-11-23 15:05:46,528 INFO L160 PredicateUnifier]: Initialized classic predicate unifier
[2023-11-23 15:05:46,528 INFO L85 PathProgramCache]: Analyzing trace with hash 1638252987, now seen corresponding path program 1 times
[2023-11-23 15:05:46,528 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-11-23 15:05:46,529 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1037482596]
[2023-11-23 15:05:46,529 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-11-23 15:05:46,529 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-11-23 15:05:46,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-23 15:05:47,810 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2023-11-23 15:05:47,810 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-11-23 15:05:47,811 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1037482596]
[2023-11-23 15:05:47,811 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1037482596] provided 0 perfect and 1 imperfect interpolant sequences
[2023-11-23 15:05:47,811 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1348036516]
[2023-11-23 15:05:47,811 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-11-23 15:05:47,811 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2023-11-23 15:05:47,811 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2023-11-23 15:05:47,812 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)
[2023-11-23 15:05:47,842 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process
[2023-11-23 15:05:47,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-23 15:05:47,945 INFO L262 TraceCheckSpWp]: Trace formula consists of 157 conjuncts, 37 conjunts are in the unsatisfiable core
[2023-11-23 15:05:47,948 INFO L285 TraceCheckSpWp]: Computing forward predicates...
[2023-11-23 15:05:47,957 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 8
[2023-11-23 15:05:47,963 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 7
[2023-11-23 15:05:47,978 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 45 treesize of output 36
[2023-11-23 15:05:47,992 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 37 treesize of output 11
[2023-11-23 15:05:48,003 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 15
[2023-11-23 15:05:48,177 INFO L349 Elim1Store]: treesize reduction 19, result has 20.8 percent of original size
[2023-11-23 15:05:48,177 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 88 treesize of output 77
[2023-11-23 15:05:48,212 INFO L349 Elim1Store]: treesize reduction 18, result has 60.9 percent of original size
[2023-11-23 15:05:48,212 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 56 treesize of output 58
[2023-11-23 15:05:48,222 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 69 treesize of output 50
[2023-11-23 15:05:48,582 INFO L349 Elim1Store]: treesize reduction 18, result has 60.9 percent of original size
[2023-11-23 15:05:48,582 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 94 treesize of output 80
[2023-11-23 15:05:48,589 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 96 treesize of output 68
[2023-11-23 15:05:48,595 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 61 treesize of output 45
[2023-11-23 15:05:48,733 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size
[2023-11-23 15:05:48,734 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 55 treesize of output 63
[2023-11-23 15:05:48,799 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2023-11-23 15:05:48,799 INFO L327 TraceCheckSpWp]: Computing backward predicates...
[2023-11-23 15:05:48,882 WARN L854 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_441 (Array Int Int)) (v_ArrVal_440 (Array Int Int))) (< (select (select (let ((.cse12 (+ |c_ULTIMATE.start_main_~list~0#1.offset| 4))) (let ((.cse9 (select (select |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_main_~list~0#1.base|) .cse12))) (let ((.cse6 (store |c_#memory_$Pointer$#1.offset| .cse9 v_ArrVal_441)) (.cse13 (+ |c_ULTIMATE.start_main_~list~0#1.offset| 8))) (let ((.cse5 (select (select .cse6 |c_ULTIMATE.start_main_~list~0#1.base|) .cse13)) (.cse8 (store |c_#memory_$Pointer$#1.base| .cse9 v_ArrVal_440))) (let ((.cse4 (select (select .cse8 |c_ULTIMATE.start_main_~list~0#1.base|) .cse13)) (.cse7 (+ .cse5 4))) (let ((.cse0 (store |c_#memory_int#1| .cse9 (let ((.cse10 (select |c_#memory_int#1| .cse9)) (.cse11 (select (select |c_#memory_$Pointer$#1.offset| |c_ULTIMATE.start_main_~list~0#1.base|) .cse12))) (store .cse10 .cse11 (+ (select .cse10 .cse11) (select (select |c_#memory_int#1| |c_ULTIMATE.start_main_~list~0#1.base|) |c_ULTIMATE.start_main_~list~0#1.offset|)))))) (.cse1 (select (select .cse8 .cse4) .cse7))) (store .cse0 .cse1 (let ((.cse2 (select .cse0 .cse1)) (.cse3 (select (select .cse6 .cse4) .cse7))) (store .cse2 .cse3 (+ (select (select .cse0 .cse4) .cse5) (select .cse2 .cse3))))))))))) |c_ULTIMATE.start_main_~m~0#1.base|) |c_ULTIMATE.start_main_~m~0#1.offset|) 110)) is different from false
[2023-11-23 15:05:48,901 WARN L854 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_441 (Array Int Int)) (v_ArrVal_440 (Array Int Int))) (< (select (select (let ((.cse12 (+ |c_ULTIMATE.start_main_~head~0#1.offset| 4))) (let ((.cse9 (select (select |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_main_~head~0#1.base|) .cse12))) (let ((.cse6 (store |c_#memory_$Pointer$#1.offset| .cse9 v_ArrVal_441)) (.cse13 (+ |c_ULTIMATE.start_main_~head~0#1.offset| 8))) (let ((.cse5 (select (select .cse6 |c_ULTIMATE.start_main_~head~0#1.base|) .cse13)) (.cse8 (store |c_#memory_$Pointer$#1.base| .cse9 v_ArrVal_440))) (let ((.cse4 (select (select .cse8 |c_ULTIMATE.start_main_~head~0#1.base|) .cse13)) (.cse7 (+ .cse5 4))) (let ((.cse0 (store |c_#memory_int#1| .cse9 (let ((.cse10 (select |c_#memory_int#1| .cse9)) (.cse11 (select (select |c_#memory_$Pointer$#1.offset| |c_ULTIMATE.start_main_~head~0#1.base|) .cse12))) (store .cse10 .cse11 (+ (select (select |c_#memory_int#1| |c_ULTIMATE.start_main_~head~0#1.base|) |c_ULTIMATE.start_main_~head~0#1.offset|) (select .cse10 .cse11)))))) (.cse1 (select (select .cse8 .cse4) .cse7))) (store .cse0 .cse1 (let ((.cse2 (select .cse0 .cse1)) (.cse3 (select (select .cse6 .cse4) .cse7))) (store .cse2 .cse3 (+ (select .cse2 .cse3) (select (select .cse0 .cse4) .cse5))))))))))) |c_ULTIMATE.start_main_~m~0#1.base|) |c_ULTIMATE.start_main_~m~0#1.offset|) 110)) is different from false
[2023-11-23 15:05:48,916 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 2 not checked.
[2023-11-23 15:05:48,916 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1348036516] provided 0 perfect and 2 imperfect interpolant sequences
[2023-11-23 15:05:48,917 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences.
[2023-11-23 15:05:48,917 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 6, 7] total 19
[2023-11-23 15:05:48,917 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1148242963]
[2023-11-23 15:05:48,917 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton
[2023-11-23 15:05:48,917 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 20 states
[2023-11-23 15:05:48,917 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-11-23 15:05:48,918 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants.
[2023-11-23 15:05:48,918 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=54, Invalid=258, Unknown=2, NotChecked=66, Total=380
[2023-11-23 15:05:48,918 INFO L87 Difference]: Start difference. First operand 18 states and 22 transitions. Second operand has 20 states, 20 states have (on average 1.95) internal successors, (39), 19 states have internal predecessors, (39), 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)
[2023-11-23 15:05:50,005 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-11-23 15:05:50,005 INFO L93 Difference]: Finished difference Result 50 states and 67 transitions.
[2023-11-23 15:05:50,006 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states.
[2023-11-23 15:05:50,006 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 20 states have (on average 1.95) internal successors, (39), 19 states have internal predecessors, (39), 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 15
[2023-11-23 15:05:50,006 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2023-11-23 15:05:50,007 INFO L225 Difference]: With dead ends: 50
[2023-11-23 15:05:50,007 INFO L226 Difference]: Without dead ends: 22
[2023-11-23 15:05:50,007 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 21 SyntacticMatches, 3 SemanticMatches, 28 ConstructedPredicates, 2 IntricatePredicates, 0 DeprecatedPredicates, 104 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=208, Invalid=554, Unknown=2, NotChecked=106, Total=870
[2023-11-23 15:05:50,008 INFO L413 NwaCegarLoop]: 8 mSDtfsCounter, 77 mSDsluCounter, 136 mSDsCounter, 0 mSdLazyCounter, 155 mSolverCounterSat, 58 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 77 SdHoareTripleChecker+Valid, 144 SdHoareTripleChecker+Invalid, 278 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 58 IncrementalHoareTripleChecker+Valid, 155 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 65 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time
[2023-11-23 15:05:50,008 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [77 Valid, 144 Invalid, 278 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [58 Valid, 155 Invalid, 0 Unknown, 65 Unchecked, 0.4s Time]
[2023-11-23 15:05:50,009 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22 states.
[2023-11-23 15:05:50,012 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22 to 22.
[2023-11-23 15:05:50,012 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22 states, 21 states have (on average 1.2857142857142858) internal successors, (27), 21 states have internal predecessors, (27), 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)
[2023-11-23 15:05:50,012 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 27 transitions.
[2023-11-23 15:05:50,013 INFO L78 Accepts]: Start accepts. Automaton has 22 states and 27 transitions. Word has length 15
[2023-11-23 15:05:50,013 INFO L84 Accepts]: Finished accepts. word is rejected.
[2023-11-23 15:05:50,013 INFO L495 AbstractCegarLoop]: Abstraction has 22 states and 27 transitions.
[2023-11-23 15:05:50,013 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 20 states have (on average 1.95) internal successors, (39), 19 states have internal predecessors, (39), 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)
[2023-11-23 15:05:50,013 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 27 transitions.
[2023-11-23 15:05:50,014 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20
[2023-11-23 15:05:50,014 INFO L187 NwaCegarLoop]: Found error trace
[2023-11-23 15:05:50,014 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2023-11-23 15:05:50,026 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0
[2023-11-23 15:05:50,220 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2023-11-23 15:05:50,220 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-11-23 15:05:50,221 INFO L160 PredicateUnifier]: Initialized classic predicate unifier
[2023-11-23 15:05:50,221 INFO L85 PathProgramCache]: Analyzing trace with hash 590429828, now seen corresponding path program 1 times
[2023-11-23 15:05:50,221 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-11-23 15:05:50,221 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2122468382]
[2023-11-23 15:05:50,221 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-11-23 15:05:50,221 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-11-23 15:05:50,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-23 15:05:51,221 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2023-11-23 15:05:51,221 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-11-23 15:05:51,221 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2122468382]
[2023-11-23 15:05:51,221 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2122468382] provided 0 perfect and 1 imperfect interpolant sequences
[2023-11-23 15:05:51,222 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [989888526]
[2023-11-23 15:05:51,222 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-11-23 15:05:51,222 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2023-11-23 15:05:51,222 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2023-11-23 15:05:51,223 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)
[2023-11-23 15:05:51,242 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process
[2023-11-23 15:05:51,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-23 15:05:51,346 INFO L262 TraceCheckSpWp]: Trace formula consists of 215 conjuncts, 61 conjunts are in the unsatisfiable core
[2023-11-23 15:05:51,350 INFO L285 TraceCheckSpWp]: Computing forward predicates...
[2023-11-23 15:05:51,363 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 15
[2023-11-23 15:05:51,383 INFO L349 Elim1Store]: treesize reduction 15, result has 25.0 percent of original size
[2023-11-23 15:05:51,383 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 19 treesize of output 18
[2023-11-23 15:05:51,407 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 7
[2023-11-23 15:05:51,417 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 32
[2023-11-23 15:05:51,438 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 37 treesize of output 11
[2023-11-23 15:05:51,603 INFO L190 IndexEqualityManager]: detected not equals via solver
[2023-11-23 15:05:51,608 INFO L190 IndexEqualityManager]: detected not equals via solver
[2023-11-23 15:05:51,609 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 51 treesize of output 44
[2023-11-23 15:05:51,621 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 13
[2023-11-23 15:05:51,626 INFO L190 IndexEqualityManager]: detected not equals via solver
[2023-11-23 15:05:51,630 INFO L190 IndexEqualityManager]: detected not equals via solver
[2023-11-23 15:05:51,631 INFO L190 IndexEqualityManager]: detected not equals via solver
[2023-11-23 15:05:51,632 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 43 treesize of output 43
[2023-11-23 15:05:51,637 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 11
[2023-11-23 15:05:51,646 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 40 treesize of output 40
[2023-11-23 15:05:51,655 INFO L190 IndexEqualityManager]: detected not equals via solver
[2023-11-23 15:05:51,658 INFO L190 IndexEqualityManager]: detected not equals via solver
[2023-11-23 15:05:51,659 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 65 treesize of output 56
[2023-11-23 15:05:51,666 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 56 treesize of output 43
[2023-11-23 15:05:51,679 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 27
[2023-11-23 15:05:51,709 INFO L349 Elim1Store]: treesize reduction 8, result has 72.4 percent of original size
[2023-11-23 15:05:51,710 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 24 treesize of output 30
[2023-11-23 15:05:51,969 INFO L349 Elim1Store]: treesize reduction 44, result has 20.0 percent of original size
[2023-11-23 15:05:51,970 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 4 new quantified variables, introduced 3 case distinctions, treesize of input 146 treesize of output 125
[2023-11-23 15:05:51,985 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 52 treesize of output 31
[2023-11-23 15:05:51,989 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 75 treesize of output 59
[2023-11-23 15:05:52,243 INFO L349 Elim1Store]: treesize reduction 16, result has 5.9 percent of original size
[2023-11-23 15:05:52,243 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 1 disjoint index pairs (out of 6 index pairs), introduced 5 new quantified variables, introduced 5 case distinctions, treesize of input 129 treesize of output 72
[2023-11-23 15:05:52,250 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 40 treesize of output 12
[2023-11-23 15:05:52,283 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 3 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2023-11-23 15:05:52,283 INFO L327 TraceCheckSpWp]: Computing backward predicates...
[2023-11-23 15:05:52,369 WARN L854 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_586 (Array Int Int)) (v_ArrVal_588 (Array Int Int))) (< 100 (let ((.cse3 (+ |c_ULTIMATE.start_main_~list~0#1.offset| 4))) (let ((.cse0 (select (select |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_main_~list~0#1.base|) .cse3))) (let ((.cse7 (store |c_#memory_$Pointer$#1.offset| .cse0 v_ArrVal_586)) (.cse4 (store |c_#memory_$Pointer$#1.base| .cse0 v_ArrVal_588)) (.cse8 (+ |c_ULTIMATE.start_main_~list~0#1.offset| 8))) (let ((.cse5 (select (select .cse4 |c_ULTIMATE.start_main_~list~0#1.base|) .cse8)) (.cse6 (+ (select (select .cse7 |c_ULTIMATE.start_main_~list~0#1.base|) .cse8) 4))) (select (select (store |c_#memory_int#1| .cse0 (let ((.cse1 (select |c_#memory_int#1| .cse0)) (.cse2 (select (select |c_#memory_$Pointer$#1.offset| |c_ULTIMATE.start_main_~list~0#1.base|) .cse3))) (store .cse1 .cse2 (+ (select .cse1 .cse2) (select (select |c_#memory_int#1| |c_ULTIMATE.start_main_~list~0#1.base|) |c_ULTIMATE.start_main_~list~0#1.offset|))))) (select (select .cse4 .cse5) .cse6)) (select (select .cse7 .cse5) .cse6)))))))) is different from false
[2023-11-23 15:05:52,386 WARN L854 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_586 (Array Int Int)) (v_ArrVal_588 (Array Int Int))) (< 100 (let ((.cse3 (+ |c_ULTIMATE.start_main_~head~0#1.offset| 4))) (let ((.cse0 (select (select |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_main_~head~0#1.base|) .cse3))) (let ((.cse7 (store |c_#memory_$Pointer$#1.offset| .cse0 v_ArrVal_586)) (.cse4 (store |c_#memory_$Pointer$#1.base| .cse0 v_ArrVal_588)) (.cse8 (+ |c_ULTIMATE.start_main_~head~0#1.offset| 8))) (let ((.cse5 (select (select .cse4 |c_ULTIMATE.start_main_~head~0#1.base|) .cse8)) (.cse6 (+ 4 (select (select .cse7 |c_ULTIMATE.start_main_~head~0#1.base|) .cse8)))) (select (select (store |c_#memory_int#1| .cse0 (let ((.cse1 (select |c_#memory_int#1| .cse0)) (.cse2 (select (select |c_#memory_$Pointer$#1.offset| |c_ULTIMATE.start_main_~head~0#1.base|) .cse3))) (store .cse1 .cse2 (+ (select (select |c_#memory_int#1| |c_ULTIMATE.start_main_~head~0#1.base|) |c_ULTIMATE.start_main_~head~0#1.offset|) (select .cse1 .cse2))))) (select (select .cse4 .cse5) .cse6)) (select (select .cse7 .cse5) .cse6)))))))) is different from false
[2023-11-23 15:05:52,428 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size
[2023-11-23 15:05:52,428 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 2 case distinctions, treesize of input 685 treesize of output 554
[2023-11-23 15:05:52,538 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size
[2023-11-23 15:05:52,539 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 2 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 4 case distinctions, treesize of input 541 treesize of output 520
[2023-11-23 15:05:53,582 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 4 not checked.
[2023-11-23 15:05:53,583 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [989888526] provided 0 perfect and 2 imperfect interpolant sequences
[2023-11-23 15:05:53,583 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences.
[2023-11-23 15:05:53,583 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 7, 7] total 23
[2023-11-23 15:05:53,583 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1279748726]
[2023-11-23 15:05:53,583 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton
[2023-11-23 15:05:53,583 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 24 states
[2023-11-23 15:05:53,583 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-11-23 15:05:53,584 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants.
[2023-11-23 15:05:53,584 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=65, Invalid=403, Unknown=2, NotChecked=82, Total=552
[2023-11-23 15:05:53,584 INFO L87 Difference]: Start difference. First operand 22 states and 27 transitions. Second operand has 24 states, 24 states have (on average 2.125) internal successors, (51), 23 states have internal predecessors, (51), 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)
[2023-11-23 15:05:57,270 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-11-23 15:05:57,270 INFO L93 Difference]: Finished difference Result 31 states and 39 transitions.
[2023-11-23 15:05:57,271 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states.
[2023-11-23 15:05:57,271 INFO L78 Accepts]: Start accepts. Automaton has has 24 states, 24 states have (on average 2.125) internal successors, (51), 23 states have internal predecessors, (51), 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 19
[2023-11-23 15:05:57,271 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2023-11-23 15:05:57,272 INFO L225 Difference]: With dead ends: 31
[2023-11-23 15:05:57,272 INFO L226 Difference]: Without dead ends: 24
[2023-11-23 15:05:57,272 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 25 SyntacticMatches, 3 SemanticMatches, 29 ConstructedPredicates, 2 IntricatePredicates, 0 DeprecatedPredicates, 167 ImplicationChecksByTransitivity, 3.8s TimeCoverageRelationStatistics Valid=140, Invalid=676, Unknown=4, NotChecked=110, Total=930
[2023-11-23 15:05:57,273 INFO L413 NwaCegarLoop]: 12 mSDtfsCounter, 31 mSDsluCounter, 158 mSDsCounter, 0 mSdLazyCounter, 160 mSolverCounterSat, 12 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 31 SdHoareTripleChecker+Valid, 170 SdHoareTripleChecker+Invalid, 216 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 160 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 43 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time
[2023-11-23 15:05:57,273 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [31 Valid, 170 Invalid, 216 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 160 Invalid, 1 Unknown, 43 Unchecked, 0.8s Time]
[2023-11-23 15:05:57,274 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24 states.
[2023-11-23 15:05:57,277 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24 to 24.
[2023-11-23 15:05:57,277 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24 states, 23 states have (on average 1.2608695652173914) internal successors, (29), 23 states have internal predecessors, (29), 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)
[2023-11-23 15:05:57,277 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 29 transitions.
[2023-11-23 15:05:57,278 INFO L78 Accepts]: Start accepts. Automaton has 24 states and 29 transitions. Word has length 19
[2023-11-23 15:05:57,278 INFO L84 Accepts]: Finished accepts. word is rejected.
[2023-11-23 15:05:57,278 INFO L495 AbstractCegarLoop]: Abstraction has 24 states and 29 transitions.
[2023-11-23 15:05:57,278 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 24 states have (on average 2.125) internal successors, (51), 23 states have internal predecessors, (51), 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)
[2023-11-23 15:05:57,278 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 29 transitions.
[2023-11-23 15:05:57,279 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20
[2023-11-23 15:05:57,279 INFO L187 NwaCegarLoop]: Found error trace
[2023-11-23 15:05:57,279 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2023-11-23 15:05:57,291 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0
[2023-11-23 15:05:57,480 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2023-11-23 15:05:57,480 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-11-23 15:05:57,481 INFO L160 PredicateUnifier]: Initialized classic predicate unifier
[2023-11-23 15:05:57,481 INFO L85 PathProgramCache]: Analyzing trace with hash 592276870, now seen corresponding path program 1 times
[2023-11-23 15:05:57,481 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-11-23 15:05:57,481 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1836249523]
[2023-11-23 15:05:57,481 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-11-23 15:05:57,481 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-11-23 15:05:57,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-23 15:05:58,881 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2023-11-23 15:05:58,882 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-11-23 15:05:58,882 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1836249523]
[2023-11-23 15:05:58,882 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1836249523] provided 0 perfect and 1 imperfect interpolant sequences
[2023-11-23 15:05:58,882 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1547207914]
[2023-11-23 15:05:58,882 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-11-23 15:05:58,882 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2023-11-23 15:05:58,882 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2023-11-23 15:05:58,883 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2023-11-23 15:05:58,884 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process
[2023-11-23 15:05:58,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-23 15:05:58,998 INFO L262 TraceCheckSpWp]: Trace formula consists of 215 conjuncts, 69 conjunts are in the unsatisfiable core
[2023-11-23 15:05:59,003 INFO L285 TraceCheckSpWp]: Computing forward predicates...
[2023-11-23 15:05:59,015 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 15
[2023-11-23 15:05:59,043 INFO L349 Elim1Store]: treesize reduction 15, result has 25.0 percent of original size
[2023-11-23 15:05:59,043 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 19 treesize of output 18
[2023-11-23 15:05:59,055 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 7
[2023-11-23 15:05:59,068 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 39
[2023-11-23 15:05:59,076 INFO L190 IndexEqualityManager]: detected not equals via solver
[2023-11-23 15:05:59,079 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 40 treesize of output 30
[2023-11-23 15:05:59,088 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 7
[2023-11-23 15:05:59,219 INFO L349 Elim1Store]: treesize reduction 8, result has 68.0 percent of original size
[2023-11-23 15:05:59,219 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 20 treesize of output 26
[2023-11-23 15:05:59,226 INFO L190 IndexEqualityManager]: detected not equals via solver
[2023-11-23 15:05:59,228 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 14
[2023-11-23 15:05:59,231 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 18
[2023-11-23 15:05:59,252 INFO L190 IndexEqualityManager]: detected not equals via solver
[2023-11-23 15:05:59,254 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 52 treesize of output 43
[2023-11-23 15:05:59,267 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 42 treesize of output 1
[2023-11-23 15:05:59,273 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 11
[2023-11-23 15:05:59,280 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 40
[2023-11-23 15:05:59,284 INFO L190 IndexEqualityManager]: detected not equals via solver
[2023-11-23 15:05:59,287 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 37 treesize of output 32
[2023-11-23 15:05:59,295 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 14
[2023-11-23 15:05:59,648 INFO L349 Elim1Store]: treesize reduction 44, result has 20.0 percent of original size
[2023-11-23 15:05:59,648 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 4 new quantified variables, introduced 3 case distinctions, treesize of input 118 treesize of output 105
[2023-11-23 15:05:59,661 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 16
[2023-11-23 15:05:59,670 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 59 treesize of output 41
[2023-11-23 15:06:00,016 INFO L349 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size
[2023-11-23 15:06:00,017 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 4 new quantified variables, introduced 2 case distinctions, treesize of input 124 treesize of output 63
[2023-11-23 15:06:00,047 INFO L349 Elim1Store]: treesize reduction 18, result has 60.9 percent of original size
[2023-11-23 15:06:00,048 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 2 case distinctions, treesize of input 53 treesize of output 64
[2023-11-23 15:06:00,054 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 52 treesize of output 36
[2023-11-23 15:06:00,305 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size
[2023-11-23 15:06:00,305 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 5 select indices, 5 select index equivalence classes, 0 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 10 case distinctions, treesize of input 83 treesize of output 131
[2023-11-23 15:06:00,609 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2023-11-23 15:06:00,609 INFO L327 TraceCheckSpWp]: Computing backward predicates...
[2023-11-23 15:06:01,054 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size
[2023-11-23 15:06:01,054 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 2 case distinctions, treesize of input 2605 treesize of output 2113
[2023-11-23 15:06:01,101 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size
[2023-11-23 15:06:01,101 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 2 case distinctions, treesize of input 2437 treesize of output 2335
[2023-11-23 15:06:01,708 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2023-11-23 15:06:01,709 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1547207914] provided 0 perfect and 2 imperfect interpolant sequences
[2023-11-23 15:06:01,709 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences.
[2023-11-23 15:06:01,709 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 9, 11] total 27
[2023-11-23 15:06:01,709 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1813367648]
[2023-11-23 15:06:01,709 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton
[2023-11-23 15:06:01,709 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 28 states
[2023-11-23 15:06:01,709 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-11-23 15:06:01,710 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants.
[2023-11-23 15:06:01,710 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=114, Invalid=642, Unknown=0, NotChecked=0, Total=756
[2023-11-23 15:06:01,711 INFO L87 Difference]: Start difference. First operand 24 states and 29 transitions. Second operand has 28 states, 28 states have (on average 1.8214285714285714) internal successors, (51), 27 states have internal predecessors, (51), 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)
[2023-11-23 15:06:03,740 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0]
[2023-11-23 15:06:08,819 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1]
[2023-11-23 15:06:10,070 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-11-23 15:06:10,070 INFO L93 Difference]: Finished difference Result 49 states and 63 transitions.
[2023-11-23 15:06:10,071 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states.
[2023-11-23 15:06:10,071 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 1.8214285714285714) internal successors, (51), 27 states have internal predecessors, (51), 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 19
[2023-11-23 15:06:10,071 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2023-11-23 15:06:10,071 INFO L225 Difference]: With dead ends: 49
[2023-11-23 15:06:10,071 INFO L226 Difference]: Without dead ends: 47
[2023-11-23 15:06:10,072 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 21 SyntacticMatches, 2 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 421 ImplicationChecksByTransitivity, 4.9s TimeCoverageRelationStatistics Valid=340, Invalid=1381, Unknown=1, NotChecked=0, Total=1722
[2023-11-23 15:06:10,073 INFO L413 NwaCegarLoop]: 11 mSDtfsCounter, 117 mSDsluCounter, 92 mSDsCounter, 0 mSdLazyCounter, 225 mSolverCounterSat, 39 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 117 SdHoareTripleChecker+Valid, 103 SdHoareTripleChecker+Invalid, 266 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 39 IncrementalHoareTripleChecker+Valid, 225 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.7s IncrementalHoareTripleChecker+Time
[2023-11-23 15:06:10,073 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [117 Valid, 103 Invalid, 266 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [39 Valid, 225 Invalid, 2 Unknown, 0 Unchecked, 4.7s Time]
[2023-11-23 15:06:10,073 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 47 states.
[2023-11-23 15:06:10,078 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 47 to 30.
[2023-11-23 15:06:10,079 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 30 states, 29 states have (on average 1.3103448275862069) internal successors, (38), 29 states have internal predecessors, (38), 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)
[2023-11-23 15:06:10,079 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 38 transitions.
[2023-11-23 15:06:10,079 INFO L78 Accepts]: Start accepts. Automaton has 30 states and 38 transitions. Word has length 19
[2023-11-23 15:06:10,079 INFO L84 Accepts]: Finished accepts. word is rejected.
[2023-11-23 15:06:10,079 INFO L495 AbstractCegarLoop]: Abstraction has 30 states and 38 transitions.
[2023-11-23 15:06:10,079 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 1.8214285714285714) internal successors, (51), 27 states have internal predecessors, (51), 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)
[2023-11-23 15:06:10,079 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 38 transitions.
[2023-11-23 15:06:10,080 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20
[2023-11-23 15:06:10,080 INFO L187 NwaCegarLoop]: Found error trace
[2023-11-23 15:06:10,080 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2023-11-23 15:06:10,096 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0
[2023-11-23 15:06:10,280 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2023-11-23 15:06:10,281 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-11-23 15:06:10,281 INFO L160 PredicateUnifier]: Initialized classic predicate unifier
[2023-11-23 15:06:10,281 INFO L85 PathProgramCache]: Analyzing trace with hash 592278792, now seen corresponding path program 1 times
[2023-11-23 15:06:10,281 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-11-23 15:06:10,281 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1985142155]
[2023-11-23 15:06:10,281 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-11-23 15:06:10,281 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-11-23 15:06:10,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-23 15:06:11,041 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 1 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2023-11-23 15:06:11,041 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-11-23 15:06:11,041 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1985142155]
[2023-11-23 15:06:11,041 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1985142155] provided 0 perfect and 1 imperfect interpolant sequences
[2023-11-23 15:06:11,041 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1573294677]
[2023-11-23 15:06:11,042 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-11-23 15:06:11,042 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2023-11-23 15:06:11,042 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2023-11-23 15:06:11,044 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2023-11-23 15:06:11,045 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process
[2023-11-23 15:06:11,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-23 15:06:11,170 INFO L262 TraceCheckSpWp]: Trace formula consists of 212 conjuncts, 61 conjunts are in the unsatisfiable core
[2023-11-23 15:06:11,174 INFO L285 TraceCheckSpWp]: Computing forward predicates...
[2023-11-23 15:06:11,245 INFO L349 Elim1Store]: treesize reduction 82, result has 26.1 percent of original size
[2023-11-23 15:06:11,246 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 45 treesize of output 29
[2023-11-23 15:06:11,286 INFO L349 Elim1Store]: treesize reduction 15, result has 25.0 percent of original size
[2023-11-23 15:06:11,286 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 19 treesize of output 18
[2023-11-23 15:06:11,303 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 15
[2023-11-23 15:06:11,454 INFO L349 Elim1Store]: treesize reduction 8, result has 68.0 percent of original size
[2023-11-23 15:06:11,455 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 20 treesize of output 26
[2023-11-23 15:06:11,462 INFO L190 IndexEqualityManager]: detected not equals via solver
[2023-11-23 15:06:11,465 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 37 treesize of output 32
[2023-11-23 15:06:11,470 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 14
[2023-11-23 15:06:11,479 INFO L190 IndexEqualityManager]: detected not equals via solver
[2023-11-23 15:06:11,482 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 59 treesize of output 53
[2023-11-23 15:06:11,487 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 11
[2023-11-23 15:06:11,503 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 42 treesize of output 1
[2023-11-23 15:06:11,512 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 43 treesize of output 47
[2023-11-23 15:06:11,521 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 1
[2023-11-23 15:06:11,705 INFO L190 IndexEqualityManager]: detected not equals via solver
[2023-11-23 15:06:11,708 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 66 treesize of output 49
[2023-11-23 15:06:11,724 INFO L349 Elim1Store]: treesize reduction 19, result has 20.8 percent of original size
[2023-11-23 15:06:11,724 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 92 treesize of output 81
[2023-11-23 15:06:11,758 INFO L349 Elim1Store]: treesize reduction 18, result has 60.9 percent of original size
[2023-11-23 15:06:11,758 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 2 case distinctions, treesize of input 67 treesize of output 72
[2023-11-23 15:06:11,786 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7
[2023-11-23 15:06:12,442 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size
[2023-11-23 15:06:12,443 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 7 select indices, 7 select index equivalence classes, 1 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 21 case distinctions, treesize of input 296 treesize of output 288
[2023-11-23 15:06:13,189 INFO L349 Elim1Store]: treesize reduction 764, result has 32.9 percent of original size
[2023-11-23 15:06:13,190 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 11 select indices, 11 select index equivalence classes, 0 disjoint index pairs (out of 55 index pairs), introduced 11 new quantified variables, introduced 65 case distinctions, treesize of input 216 treesize of output 516
[2023-11-23 15:06:13,264 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size
[2023-11-23 15:06:13,265 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 7 select indices, 7 select index equivalence classes, 1 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 18 case distinctions, treesize of input 573 treesize of output 509
[2023-11-23 15:09:51,851 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 101
[2023-11-23 15:09:51,851 WARN L249 Executor]: External (MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1) with exit command (exit)) stderr output: (error "out of memory")
[2023-11-23 15:09:51,853 WARN L320 FreeRefinementEngine]: Global settings require throwing the following exception
[2023-11-23 15:09:51,866 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0
[2023-11-23 15:09:52,060 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2023-11-23 15:09:52,061 FATAL L? ?]: An unrecoverable error occured during an interaction with an SMT solver:
de.uni_freiburg.informatik.ultimate.logic.SMTLIBException: External (MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1) with exit command (exit)) Received EOF on stdin. stderr output: (error "out of memory")
at de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.parse(Executor.java:262)
at de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.parseSuccess(Executor.java:277)
at de.uni_freiburg.informatik.ultimate.smtsolver.external.Scriptor.push(Scriptor.java:133)
at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.arrays.DiffWrapperScript.push(DiffWrapperScript.java:90)
at de.uni_freiburg.informatik.ultimate.logic.WrapperScript.push(WrapperScript.java:148)
at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.scripttransfer.HistoryRecordingScript.push(HistoryRecordingScript.java:107)
at de.uni_freiburg.informatik.ultimate.logic.Util.checkSat(Util.java:48)
at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.SimplifyDDA2.checkRedundancy(SimplifyDDA2.java:268)
at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.SimplifyDDA2.convertForPreprocessedInputTerms(SimplifyDDA2.java:410)
at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.SimplifyDDA2.convert(SimplifyDDA2.java:394)
at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.SimplifyDDA2.convert(SimplifyDDA2.java:1)
at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.TermContextTransformationEngine.transform(TermContextTransformationEngine.java:88)
at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.TermContextTransformationEngine.transform(TermContextTransformationEngine.java:84)
at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.SimplifyDDA2.simplify(SimplifyDDA2.java:500)
at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.SmtUtils.simplify(SmtUtils.java:252)
at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.SmtUtils.simplifyWithStatistics(SmtUtils.java:324)
at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify(QuantifierPusher.java:731)
at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPushTermWalker.convert(QuantifierPushTermWalker.java:140)
at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPushTermWalker.convert(QuantifierPushTermWalker.java:1)
at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.TermContextTransformationEngine$ApplicationTermTask.doStep(TermContextTransformationEngine.java:209)
at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.TermContextTransformationEngine.transform(TermContextTransformationEngine.java:100)
at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.TermContextTransformationEngine.transform(TermContextTransformationEngine.java:84)
at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPushTermWalker.eliminate(QuantifierPushTermWalker.java:297)
at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPushUtilsForSubsetPush.pushMinionEliminatees(QuantifierPushUtilsForSubsetPush.java:255)
at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPushUtilsForSubsetPush.sequentialSubsetPush(QuantifierPushUtilsForSubsetPush.java:151)
at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.tryToPushOverDualFiniteConnective(QuantifierPusher.java:338)
at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPushTermWalker.convert(QuantifierPushTermWalker.java:189)
at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPushTermWalker.convert(QuantifierPushTermWalker.java:1)
at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.TermContextTransformationEngine.transform(TermContextTransformationEngine.java:88)
at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.TermContextTransformationEngine.transform(TermContextTransformationEngine.java:84)
at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPushTermWalker.eliminate(QuantifierPushTermWalker.java:297)
at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPushTermWalker.eliminate(QuantifierPushTermWalker.java:283)
at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.PartialQuantifierElimination.eliminate(PartialQuantifierElimination.java:51)
at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.predicates.IterativePredicateTransformer$QuantifierEliminationPostprocessor.postprocess(IterativePredicateTransformer.java:238)
at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.predicates.IterativePredicateTransformer.applyPostprocessors(IterativePredicateTransformer.java:420)
at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.predicates.IterativePredicateTransformer.computeStrongestPostconditionSequence(IterativePredicateTransformer.java:199)
at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheckSpWp.computeInterpolantsUsingUnsatCore(TraceCheckSpWp.java:298)
at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheckSpWp.computeInterpolants(TraceCheckSpWp.java:184)
at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheckSpWp.<init>(TraceCheckSpWp.java:162)
at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleSpWp.construct(IpTcStrategyModuleSpWp.java:110)
at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleSpWp.construct(IpTcStrategyModuleSpWp.java:1)
at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getOrConstruct(IpTcStrategyModuleBase.java:101)
at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getInterpolantComputationStatus(IpTcStrategyModuleBase.java:77)
at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.tryExecuteInterpolantGenerator(AutomatonFreeRefinementEngine.java:267)
at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.generateProof(AutomatonFreeRefinementEngine.java:148)
at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.executeStrategy(AutomatonFreeRefinementEngine.java:137)
at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.<init>(AutomatonFreeRefinementEngine.java:85)
at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.<init>(TraceAbstractionRefinementEngine.java:82)
at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.isCounterexampleFeasible(BasicCegarLoop.java:337)
at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:431)
at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.startCegar(AbstractCegarLoop.java:366)
at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.runCegar(AbstractCegarLoop.java:348)
at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.executeCegarLoop(TraceAbstractionStarter.java:415)
at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseProgram(TraceAbstractionStarter.java:302)
at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseSequentialProgram(TraceAbstractionStarter.java:262)
at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:175)
at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.<init>(TraceAbstractionStarter.java:154)
at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:124)
at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:167)
at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:150)
at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:127)
at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:233)
at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:227)
at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:144)
at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:106)
at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:319)
at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145)
at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63)
Caused by: de.uni_freiburg.informatik.ultimate.logic.SMTLIBException: EOF
at de.uni_freiburg.informatik.ultimate.smtsolver.external.Parser$Action$.CUP$do_action(Parser.java:1518)
at de.uni_freiburg.informatik.ultimate.smtsolver.external.Parser.do_action(Parser.java:701)
at com.github.jhoenicke.javacup.runtime.LRParser.parse(LRParser.java:383)
at de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.parse(Executor.java:258)
... 67 more
[2023-11-23 15:09:52,065 INFO L158 Benchmark]: Toolchain (without parser) took 255344.45ms. Allocated memory was 148.9MB in the beginning and 2.1GB in the end (delta: 1.9GB). Free memory was 80.6MB in the beginning and 1.5GB in the end (delta: -1.4GB). Peak memory consumption was 1.2GB. Max. memory is 16.1GB.
[2023-11-23 15:09:52,065 INFO L158 Benchmark]: CDTParser took 0.18ms. Allocated memory is still 109.1MB. Free memory is still 71.0MB. There was no memory consumed. Max. memory is 16.1GB.
[2023-11-23 15:09:52,065 INFO L158 Benchmark]: CACSL2BoogieTranslator took 461.95ms. Allocated memory is still 148.9MB. Free memory was 80.5MB in the beginning and 106.6MB in the end (delta: -26.1MB). Peak memory consumption was 4.5MB. Max. memory is 16.1GB.
[2023-11-23 15:09:52,066 INFO L158 Benchmark]: Boogie Procedure Inliner took 45.97ms. Allocated memory is still 148.9MB. Free memory was 106.6MB in the beginning and 104.5MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB.
[2023-11-23 15:09:52,066 INFO L158 Benchmark]: Boogie Preprocessor took 43.96ms. Allocated memory is still 148.9MB. Free memory was 104.5MB in the beginning and 102.4MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB.
[2023-11-23 15:09:52,066 INFO L158 Benchmark]: RCFGBuilder took 364.52ms. Allocated memory is still 148.9MB. Free memory was 102.4MB in the beginning and 87.3MB in the end (delta: 15.2MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB.
[2023-11-23 15:09:52,066 INFO L158 Benchmark]: TraceAbstraction took 254423.24ms. Allocated memory was 148.9MB in the beginning and 2.1GB in the end (delta: 1.9GB). Free memory was 86.3MB in the beginning and 1.5GB in the end (delta: -1.4GB). Peak memory consumption was 1.2GB. Max. memory is 16.1GB.
[2023-11-23 15:09:52,068 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] #######################
--- Results ---
* Results from de.uni_freiburg.informatik.ultimate.core:
- StatisticsResult: Toolchain Benchmarks
Benchmark results are:
* CDTParser took 0.18ms. Allocated memory is still 109.1MB. Free memory is still 71.0MB. There was no memory consumed. Max. memory is 16.1GB.
* CACSL2BoogieTranslator took 461.95ms. Allocated memory is still 148.9MB. Free memory was 80.5MB in the beginning and 106.6MB in the end (delta: -26.1MB). Peak memory consumption was 4.5MB. Max. memory is 16.1GB.
* Boogie Procedure Inliner took 45.97ms. Allocated memory is still 148.9MB. Free memory was 106.6MB in the beginning and 104.5MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB.
* Boogie Preprocessor took 43.96ms. Allocated memory is still 148.9MB. Free memory was 104.5MB in the beginning and 102.4MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB.
* RCFGBuilder took 364.52ms. Allocated memory is still 148.9MB. Free memory was 102.4MB in the beginning and 87.3MB in the end (delta: 15.2MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB.
* TraceAbstraction took 254423.24ms. Allocated memory was 148.9MB in the beginning and 2.1GB in the end (delta: 1.9GB). Free memory was 86.3MB in the beginning and 1.5GB in the end (delta: -1.4GB). Peak memory consumption was 1.2GB. Max. memory is 16.1GB.
* Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction:
- ExceptionOrErrorResult: SMTLIBException: External (MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1) with exit command (exit)) Received EOF on stdin. stderr output: (error "out of memory")
de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMTLIBException: External (MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1) with exit command (exit)) Received EOF on stdin. stderr output: (error "out of memory")
: de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.parse(Executor.java:262)
RESULT: Ultimate could not prove your program: Toolchain returned no result.
Received shutdown request...
--- End real Ultimate output ---
Execution finished normally
Using bit-precise analysis
Retrying with bit-precise analysis
### Bit-precise run ###
Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../../../trunk/examples/svcomp/heap-data/shared_mem1.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) )
--witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 47cb7cab177485da5df0f1af4a3f61fd7eb970990493dd3ac764f888774cbf0f
--- Real Ultimate output ---
This is Ultimate 0.2.3-dev-c4f9136-m
[2023-11-23 15:09:54,347 INFO L188 SettingsManager]: Resetting all preferences to default values...
[2023-11-23 15:09:54,430 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf
[2023-11-23 15:09:54,437 WARN L101 SettingsManager]: Preference file contains the following unknown settings:
[2023-11-23 15:09:54,438 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class
[2023-11-23 15:09:54,480 INFO L130 SettingsManager]: Preferences different from defaults after loading the file:
[2023-11-23 15:09:54,481 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults:
[2023-11-23 15:09:54,481 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR;
[2023-11-23 15:09:54,482 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults:
[2023-11-23 15:09:54,486 INFO L153 SettingsManager]: * Use memory slicer=true
[2023-11-23 15:09:54,487 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults:
[2023-11-23 15:09:54,487 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS
[2023-11-23 15:09:54,488 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2023-11-23 15:09:54,489 INFO L153 SettingsManager]: * Create parallel compositions if possible=false
[2023-11-23 15:09:54,489 INFO L153 SettingsManager]: * Use SBE=true
[2023-11-23 15:09:54,490 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2023-11-23 15:09:54,490 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE
[2023-11-23 15:09:54,490 INFO L153 SettingsManager]: * sizeof long=4
[2023-11-23 15:09:54,491 INFO L153 SettingsManager]: * sizeof POINTER=4
[2023-11-23 15:09:54,491 INFO L153 SettingsManager]: * Check division by zero=IGNORE
[2023-11-23 15:09:54,491 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE
[2023-11-23 15:09:54,492 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE
[2023-11-23 15:09:54,493 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE
[2023-11-23 15:09:54,493 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true
[2023-11-23 15:09:54,493 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true
[2023-11-23 15:09:54,494 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution
[2023-11-23 15:09:54,494 INFO L153 SettingsManager]: * sizeof long double=12
[2023-11-23 15:09:54,494 INFO L153 SettingsManager]: * Check if freed pointer was valid=false
[2023-11-23 15:09:54,494 INFO L153 SettingsManager]: * Use constant arrays=true
[2023-11-23 15:09:54,495 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2023-11-23 15:09:54,496 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements
[2023-11-23 15:09:54,496 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true
[2023-11-23 15:09:54,497 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode
[2023-11-23 15:09:54,497 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2023-11-23 15:09:54,497 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2023-11-23 15:09:54,497 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP
[2023-11-23 15:09:54,498 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads
[2023-11-23 15:09:54,499 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF
[2023-11-23 15:09:54,499 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt
[2023-11-23 15:09:54,499 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false
[2023-11-23 15:09:54,499 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET
[2023-11-23 15:09:54,500 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true
[2023-11-23 15:09:54,500 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO
[2023-11-23 15:09:54,500 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode
[2023-11-23 15:09:54,501 INFO L153 SettingsManager]: * Logic for external solver=AUFBV
[2023-11-23 15:09:54,501 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$1
WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations
WARNING: All illegal access operations will be denied in a future release
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) )
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 47cb7cab177485da5df0f1af4a3f61fd7eb970990493dd3ac764f888774cbf0f
[2023-11-23 15:09:54,852 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp
[2023-11-23 15:09:54,877 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2023-11-23 15:09:54,881 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2023-11-23 15:09:54,883 INFO L270 PluginConnector]: Initializing CDTParser...
[2023-11-23 15:09:54,883 INFO L274 PluginConnector]: CDTParser initialized
[2023-11-23 15:09:54,886 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/heap-data/shared_mem1.i
[2023-11-23 15:09:56,080 INFO L533 CDTParser]: Created temporary CDT project at NULL
[2023-11-23 15:09:56,292 INFO L384 CDTParser]: Found 1 translation units.
[2023-11-23 15:09:56,293 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/heap-data/shared_mem1.i
[2023-11-23 15:09:56,323 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/65788b017/e7d3624f1a5f4d319f9bd74c84dbd7a0/FLAG5123ed71a
[2023-11-23 15:09:56,338 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/65788b017/e7d3624f1a5f4d319f9bd74c84dbd7a0
[2023-11-23 15:09:56,342 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2023-11-23 15:09:56,343 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements.
[2023-11-23 15:09:56,346 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2023-11-23 15:09:56,347 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator...
[2023-11-23 15:09:56,351 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized
[2023-11-23 15:09:56,352 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 03:09:56" (1/1) ...
[2023-11-23 15:09:56,353 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@67dcb1f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:09:56, skipping insertion in model container
[2023-11-23 15:09:56,353 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 03:09:56" (1/1) ...
[2023-11-23 15:09:56,408 INFO L177 MainTranslator]: Built tables and reachable declarations
Killed by 15