./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/unreach-call.prp --file ../../../trunk/examples/svcomp/heap-manipulation/bubble_sort_linux-2.i --full-output --preprocessor.use.memory.slicer false --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 6ae2ee47 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-manipulation/bubble_sort_linux-2.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 3b13662719be51a1d3330a7f40f7706daa8c7b2d4044bc92f854095c09c7c129 --preprocessor.use.memory.slicer false --- Real Ultimate output --- This is Ultimate 0.2.3-dev-6ae2ee4-m [2023-11-22 20:53:48,084 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-22 20:53:48,122 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2023-11-22 20:53:48,126 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-22 20:53:48,126 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-22 20:53:48,140 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-22 20:53:48,140 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-22 20:53:48,141 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-22 20:53:48,141 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-11-22 20:53:48,141 INFO L153 SettingsManager]: * Use memory slicer=true [2023-11-22 20:53:48,141 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-22 20:53:48,142 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-22 20:53:48,142 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-22 20:53:48,142 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-22 20:53:48,143 INFO L153 SettingsManager]: * Use SBE=true [2023-11-22 20:53:48,143 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-22 20:53:48,143 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-22 20:53:48,144 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-22 20:53:48,144 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-22 20:53:48,144 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-22 20:53:48,144 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-22 20:53:48,145 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-22 20:53:48,145 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-22 20:53:48,145 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-22 20:53:48,145 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-22 20:53:48,145 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-22 20:53:48,146 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-22 20:53:48,146 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-22 20:53:48,146 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-22 20:53:48,146 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-22 20:53:48,147 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-22 20:53:48,147 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-22 20:53:48,147 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-22 20:53:48,148 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-22 20:53:48,148 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-22 20:53:48,148 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-22 20:53:48,148 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-22 20:53:48,148 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-22 20:53:48,148 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-22 20:53:48,149 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-22 20:53:48,149 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-22 20:53:48,149 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-22 20:53:48,149 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 3b13662719be51a1d3330a7f40f7706daa8c7b2d4044bc92f854095c09c7c129 Applying setting for plugin de.uni_freiburg.informatik.ultimate.boogie.preprocessor: Use memory slicer -> false [2023-11-22 20:53:48,351 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-22 20:53:48,369 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-22 20:53:48,371 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-22 20:53:48,372 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-22 20:53:48,372 INFO L274 PluginConnector]: CDTParser initialized [2023-11-22 20:53:48,373 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/heap-manipulation/bubble_sort_linux-2.i [2023-11-22 20:53:49,326 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-22 20:53:49,526 INFO L384 CDTParser]: Found 1 translation units. [2023-11-22 20:53:49,527 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/heap-manipulation/bubble_sort_linux-2.i [2023-11-22 20:53:49,542 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5a3ceb874/e6cbdada95f144c6a13d37613b23dc18/FLAG3cb426782 [2023-11-22 20:53:49,561 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5a3ceb874/e6cbdada95f144c6a13d37613b23dc18 [2023-11-22 20:53:49,565 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-22 20:53:49,566 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-22 20:53:49,569 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-22 20:53:49,569 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-22 20:53:49,573 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-22 20:53:49,573 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 08:53:49" (1/1) ... [2023-11-22 20:53:49,574 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@35d21d1e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 08:53:49, skipping insertion in model container [2023-11-22 20:53:49,574 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 08:53:49" (1/1) ... [2023-11-22 20:53:49,617 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-22 20:53:49,893 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-manipulation/bubble_sort_linux-2.i[33822,33835] [2023-11-22 20:53:49,938 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-22 20:53:49,948 INFO L202 MainTranslator]: Completed pre-run [2023-11-22 20:53:49,994 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-manipulation/bubble_sort_linux-2.i[33822,33835] [2023-11-22 20:53:50,046 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-22 20:53:50,094 INFO L206 MainTranslator]: Completed translation [2023-11-22 20:53:50,094 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 08:53:50 WrapperNode [2023-11-22 20:53:50,094 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-22 20:53:50,095 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-22 20:53:50,095 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-22 20:53:50,095 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-22 20:53:50,100 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 08:53:50" (1/1) ... [2023-11-22 20:53:50,112 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 08:53:50" (1/1) ... [2023-11-22 20:53:50,128 INFO L138 Inliner]: procedures = 232, calls = 75, calls flagged for inlining = 10, calls inlined = 10, statements flattened = 118 [2023-11-22 20:53:50,129 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-22 20:53:50,129 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-22 20:53:50,130 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-22 20:53:50,130 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-22 20:53:50,144 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 08:53:50" (1/1) ... [2023-11-22 20:53:50,144 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 08:53:50" (1/1) ... [2023-11-22 20:53:50,150 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 08:53:50" (1/1) ... [2023-11-22 20:53:50,151 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 08:53:50" (1/1) ... [2023-11-22 20:53:50,161 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 08:53:50" (1/1) ... [2023-11-22 20:53:50,166 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 08:53:50" (1/1) ... [2023-11-22 20:53:50,181 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 08:53:50" (1/1) ... [2023-11-22 20:53:50,183 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 08:53:50" (1/1) ... [2023-11-22 20:53:50,185 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-22 20:53:50,186 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-22 20:53:50,186 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-22 20:53:50,186 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-22 20:53:50,187 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 08:53:50" (1/1) ... [2023-11-22 20:53:50,194 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-22 20:53:50,204 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-22 20:53:50,215 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) [2023-11-22 20:53:50,216 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 [2023-11-22 20:53:50,246 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-11-22 20:53:50,246 INFO L130 BoogieDeclarations]: Found specification of procedure inspect [2023-11-22 20:53:50,247 INFO L138 BoogieDeclarations]: Found implementation of procedure inspect [2023-11-22 20:53:50,247 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-22 20:53:50,247 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2023-11-22 20:53:50,247 INFO L130 BoogieDeclarations]: Found specification of procedure val_from_node [2023-11-22 20:53:50,247 INFO L138 BoogieDeclarations]: Found implementation of procedure val_from_node [2023-11-22 20:53:50,247 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-22 20:53:50,247 INFO L130 BoogieDeclarations]: Found specification of procedure fail [2023-11-22 20:53:50,247 INFO L138 BoogieDeclarations]: Found implementation of procedure fail [2023-11-22 20:53:50,248 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-22 20:53:50,248 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-11-22 20:53:50,248 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-22 20:53:50,248 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-11-22 20:53:50,248 INFO L130 BoogieDeclarations]: Found specification of procedure list_add [2023-11-22 20:53:50,248 INFO L138 BoogieDeclarations]: Found implementation of procedure list_add [2023-11-22 20:53:50,248 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-22 20:53:50,248 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-22 20:53:50,249 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-22 20:53:50,346 INFO L241 CfgBuilder]: Building ICFG [2023-11-22 20:53:50,348 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-22 20:53:50,599 INFO L282 CfgBuilder]: Performing block encoding [2023-11-22 20:53:50,647 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-22 20:53:50,647 INFO L309 CfgBuilder]: Removed 41 assume(true) statements. [2023-11-22 20:53:50,648 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 08:53:50 BoogieIcfgContainer [2023-11-22 20:53:50,651 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-22 20:53:50,657 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-22 20:53:50,657 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-22 20:53:50,659 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-22 20:53:50,660 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.11 08:53:49" (1/3) ... [2023-11-22 20:53:50,660 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5b5ce3a6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 08:53:50, skipping insertion in model container [2023-11-22 20:53:50,660 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 08:53:50" (2/3) ... [2023-11-22 20:53:50,660 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5b5ce3a6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 08:53:50, skipping insertion in model container [2023-11-22 20:53:50,660 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 08:53:50" (3/3) ... [2023-11-22 20:53:50,661 INFO L112 eAbstractionObserver]: Analyzing ICFG bubble_sort_linux-2.i [2023-11-22 20:53:50,673 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-22 20:53:50,673 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-22 20:53:50,717 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-22 20:53:50,723 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;@37f072f, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-22 20:53:50,724 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-22 20:53:50,728 INFO L276 IsEmpty]: Start isEmpty. Operand has 107 states, 78 states have (on average 1.8461538461538463) internal successors, (144), 97 states have internal predecessors, (144), 23 states have call successors, (23), 4 states have call predecessors, (23), 4 states have return successors, (23), 23 states have call predecessors, (23), 23 states have call successors, (23) [2023-11-22 20:53:50,733 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2023-11-22 20:53:50,733 INFO L187 NwaCegarLoop]: Found error trace [2023-11-22 20:53:50,734 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2023-11-22 20:53:50,734 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting failErr0ASSERT_VIOLATIONERROR_FUNCTION === [failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-22 20:53:50,738 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-22 20:53:50,738 INFO L85 PathProgramCache]: Analyzing trace with hash -754496073, now seen corresponding path program 1 times [2023-11-22 20:53:50,746 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-22 20:53:50,747 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1831178375] [2023-11-22 20:53:50,747 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-22 20:53:50,748 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-22 20:53:50,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 20:53:50,865 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-22 20:53:50,866 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-22 20:53:50,866 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1831178375] [2023-11-22 20:53:50,867 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1831178375] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-22 20:53:50,867 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-22 20:53:50,867 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-22 20:53:50,868 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [331073135] [2023-11-22 20:53:50,869 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-22 20:53:50,872 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-11-22 20:53:50,873 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-22 20:53:50,897 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-11-22 20:53:50,898 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-22 20:53:50,901 INFO L87 Difference]: Start difference. First operand has 107 states, 78 states have (on average 1.8461538461538463) internal successors, (144), 97 states have internal predecessors, (144), 23 states have call successors, (23), 4 states have call predecessors, (23), 4 states have return successors, (23), 23 states have call predecessors, (23), 23 states have call successors, (23) Second operand has 2 states, 2 states have (on average 3.0) internal successors, (6), 2 states have internal predecessors, (6), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-22 20:53:50,975 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-22 20:53:50,975 INFO L93 Difference]: Finished difference Result 210 states and 377 transitions. [2023-11-22 20:53:50,976 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-22 20:53:50,977 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 3.0) internal successors, (6), 2 states have internal predecessors, (6), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 8 [2023-11-22 20:53:50,977 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-22 20:53:50,984 INFO L225 Difference]: With dead ends: 210 [2023-11-22 20:53:50,985 INFO L226 Difference]: Without dead ends: 99 [2023-11-22 20:53:50,991 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 [2023-11-22 20:53:50,994 INFO L413 NwaCegarLoop]: 118 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 118 SdHoareTripleChecker+Invalid, 8 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-22 20:53:50,994 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 118 Invalid, 8 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-22 20:53:51,018 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 99 states. [2023-11-22 20:53:51,040 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 99 to 99. [2023-11-22 20:53:51,041 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 99 states, 74 states have (on average 1.2702702702702702) internal successors, (94), 89 states have internal predecessors, (94), 21 states have call successors, (21), 4 states have call predecessors, (21), 3 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2023-11-22 20:53:51,042 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 99 states to 99 states and 120 transitions. [2023-11-22 20:53:51,043 INFO L78 Accepts]: Start accepts. Automaton has 99 states and 120 transitions. Word has length 8 [2023-11-22 20:53:51,043 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-22 20:53:51,044 INFO L495 AbstractCegarLoop]: Abstraction has 99 states and 120 transitions. [2023-11-22 20:53:51,080 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 3.0) internal successors, (6), 2 states have internal predecessors, (6), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-22 20:53:51,080 INFO L276 IsEmpty]: Start isEmpty. Operand 99 states and 120 transitions. [2023-11-22 20:53:51,081 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2023-11-22 20:53:51,081 INFO L187 NwaCegarLoop]: Found error trace [2023-11-22 20:53:51,081 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-22 20:53:51,081 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-22 20:53:51,081 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting failErr0ASSERT_VIOLATIONERROR_FUNCTION === [failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-22 20:53:51,082 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-22 20:53:51,082 INFO L85 PathProgramCache]: Analyzing trace with hash 437181209, now seen corresponding path program 1 times [2023-11-22 20:53:51,082 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-22 20:53:51,082 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1722316418] [2023-11-22 20:53:51,082 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-22 20:53:51,082 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-22 20:53:51,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 20:53:51,291 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-11-22 20:53:51,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 20:53:51,326 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-22 20:53:51,329 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-22 20:53:51,330 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1722316418] [2023-11-22 20:53:51,330 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1722316418] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-22 20:53:51,330 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-22 20:53:51,330 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-11-22 20:53:51,331 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [758467123] [2023-11-22 20:53:51,331 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-22 20:53:51,332 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-22 20:53:51,332 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-22 20:53:51,333 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-22 20:53:51,334 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-11-22 20:53:51,334 INFO L87 Difference]: Start difference. First operand 99 states and 120 transitions. Second operand has 6 states, 6 states have (on average 2.1666666666666665) internal successors, (13), 4 states have internal predecessors, (13), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-22 20:53:51,611 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-22 20:53:51,611 INFO L93 Difference]: Finished difference Result 101 states and 121 transitions. [2023-11-22 20:53:51,611 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-22 20:53:51,612 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 2.1666666666666665) internal successors, (13), 4 states have internal predecessors, (13), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 17 [2023-11-22 20:53:51,612 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-22 20:53:51,614 INFO L225 Difference]: With dead ends: 101 [2023-11-22 20:53:51,614 INFO L226 Difference]: Without dead ends: 98 [2023-11-22 20:53:51,617 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2023-11-22 20:53:51,618 INFO L413 NwaCegarLoop]: 27 mSDtfsCounter, 233 mSDsluCounter, 60 mSDsCounter, 0 mSdLazyCounter, 220 mSolverCounterSat, 34 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 236 SdHoareTripleChecker+Valid, 87 SdHoareTripleChecker+Invalid, 254 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 34 IncrementalHoareTripleChecker+Valid, 220 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-22 20:53:51,619 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [236 Valid, 87 Invalid, 254 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [34 Valid, 220 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-22 20:53:51,621 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 98 states. [2023-11-22 20:53:51,635 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 98 to 98. [2023-11-22 20:53:51,637 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 98 states, 74 states have (on average 1.2567567567567568) internal successors, (93), 88 states have internal predecessors, (93), 20 states have call successors, (20), 4 states have call predecessors, (20), 3 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2023-11-22 20:53:51,639 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 98 states to 98 states and 118 transitions. [2023-11-22 20:53:51,640 INFO L78 Accepts]: Start accepts. Automaton has 98 states and 118 transitions. Word has length 17 [2023-11-22 20:53:51,641 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-22 20:53:51,641 INFO L495 AbstractCegarLoop]: Abstraction has 98 states and 118 transitions. [2023-11-22 20:53:51,641 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 2.1666666666666665) internal successors, (13), 4 states have internal predecessors, (13), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-22 20:53:51,641 INFO L276 IsEmpty]: Start isEmpty. Operand 98 states and 118 transitions. [2023-11-22 20:53:51,642 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2023-11-22 20:53:51,642 INFO L187 NwaCegarLoop]: Found error trace [2023-11-22 20:53:51,642 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-22 20:53:51,642 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-22 20:53:51,643 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting failErr0ASSERT_VIOLATIONERROR_FUNCTION === [failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-22 20:53:51,643 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-22 20:53:51,643 INFO L85 PathProgramCache]: Analyzing trace with hash 1443607003, now seen corresponding path program 1 times [2023-11-22 20:53:51,643 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-22 20:53:51,643 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1511427128] [2023-11-22 20:53:51,644 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-22 20:53:51,644 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-22 20:53:51,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 20:53:51,946 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-11-22 20:53:51,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 20:53:51,998 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-22 20:53:51,998 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-22 20:53:51,998 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1511427128] [2023-11-22 20:53:51,999 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1511427128] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-22 20:53:52,000 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-22 20:53:52,002 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2023-11-22 20:53:52,003 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2057068784] [2023-11-22 20:53:52,003 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-22 20:53:52,003 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-11-22 20:53:52,003 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-22 20:53:52,004 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-11-22 20:53:52,004 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2023-11-22 20:53:52,004 INFO L87 Difference]: Start difference. First operand 98 states and 118 transitions. Second operand has 11 states, 10 states have (on average 1.6) internal successors, (16), 7 states have internal predecessors, (16), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-22 20:53:52,772 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-22 20:53:52,772 INFO L93 Difference]: Finished difference Result 187 states and 224 transitions. [2023-11-22 20:53:52,773 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-11-22 20:53:52,773 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 1.6) internal successors, (16), 7 states have internal predecessors, (16), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 20 [2023-11-22 20:53:52,773 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-22 20:53:52,775 INFO L225 Difference]: With dead ends: 187 [2023-11-22 20:53:52,775 INFO L226 Difference]: Without dead ends: 181 [2023-11-22 20:53:52,776 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 50 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=93, Invalid=327, Unknown=0, NotChecked=0, Total=420 [2023-11-22 20:53:52,776 INFO L413 NwaCegarLoop]: 20 mSDtfsCounter, 461 mSDsluCounter, 102 mSDsCounter, 0 mSdLazyCounter, 874 mSolverCounterSat, 96 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 464 SdHoareTripleChecker+Valid, 122 SdHoareTripleChecker+Invalid, 970 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 96 IncrementalHoareTripleChecker+Valid, 874 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2023-11-22 20:53:52,777 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [464 Valid, 122 Invalid, 970 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [96 Valid, 874 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2023-11-22 20:53:52,777 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 181 states. [2023-11-22 20:53:52,791 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 181 to 161. [2023-11-22 20:53:52,792 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 161 states, 133 states have (on average 1.263157894736842) internal successors, (168), 147 states have internal predecessors, (168), 23 states have call successors, (23), 6 states have call predecessors, (23), 4 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2023-11-22 20:53:52,792 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 161 states to 161 states and 198 transitions. [2023-11-22 20:53:52,793 INFO L78 Accepts]: Start accepts. Automaton has 161 states and 198 transitions. Word has length 20 [2023-11-22 20:53:52,793 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-22 20:53:52,793 INFO L495 AbstractCegarLoop]: Abstraction has 161 states and 198 transitions. [2023-11-22 20:53:52,793 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 10 states have (on average 1.6) internal successors, (16), 7 states have internal predecessors, (16), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-22 20:53:52,793 INFO L276 IsEmpty]: Start isEmpty. Operand 161 states and 198 transitions. [2023-11-22 20:53:52,794 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2023-11-22 20:53:52,794 INFO L187 NwaCegarLoop]: Found error trace [2023-11-22 20:53:52,794 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-22 20:53:52,794 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-22 20:53:52,794 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting failErr0ASSERT_VIOLATIONERROR_FUNCTION === [failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-22 20:53:52,794 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-22 20:53:52,795 INFO L85 PathProgramCache]: Analyzing trace with hash 722118342, now seen corresponding path program 1 times [2023-11-22 20:53:52,795 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-22 20:53:52,795 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1843595435] [2023-11-22 20:53:52,795 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-22 20:53:52,795 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-22 20:53:52,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 20:53:53,208 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-11-22 20:53:53,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 20:53:53,337 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-22 20:53:53,337 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-22 20:53:53,337 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1843595435] [2023-11-22 20:53:53,337 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1843595435] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-22 20:53:53,337 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-22 20:53:53,338 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2023-11-22 20:53:53,338 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1698494075] [2023-11-22 20:53:53,338 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-22 20:53:53,338 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-11-22 20:53:53,338 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-22 20:53:53,339 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-11-22 20:53:53,339 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=90, Unknown=0, NotChecked=0, Total=110 [2023-11-22 20:53:53,339 INFO L87 Difference]: Start difference. First operand 161 states and 198 transitions. Second operand has 11 states, 10 states have (on average 1.9) internal successors, (19), 7 states have internal predecessors, (19), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-22 20:53:54,006 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-22 20:53:54,006 INFO L93 Difference]: Finished difference Result 259 states and 314 transitions. [2023-11-22 20:53:54,007 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-11-22 20:53:54,007 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 1.9) internal successors, (19), 7 states have internal predecessors, (19), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 23 [2023-11-22 20:53:54,007 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-22 20:53:54,008 INFO L225 Difference]: With dead ends: 259 [2023-11-22 20:53:54,008 INFO L226 Difference]: Without dead ends: 256 [2023-11-22 20:53:54,008 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=56, Invalid=216, Unknown=0, NotChecked=0, Total=272 [2023-11-22 20:53:54,009 INFO L413 NwaCegarLoop]: 21 mSDtfsCounter, 299 mSDsluCounter, 139 mSDsCounter, 0 mSdLazyCounter, 953 mSolverCounterSat, 39 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 302 SdHoareTripleChecker+Valid, 160 SdHoareTripleChecker+Invalid, 992 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 39 IncrementalHoareTripleChecker+Valid, 953 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-11-22 20:53:54,009 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [302 Valid, 160 Invalid, 992 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [39 Valid, 953 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-11-22 20:53:54,010 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 256 states. [2023-11-22 20:53:54,030 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 256 to 238. [2023-11-22 20:53:54,030 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 238 states, 203 states have (on average 1.2561576354679802) internal successors, (255), 218 states have internal predecessors, (255), 28 states have call successors, (28), 8 states have call predecessors, (28), 6 states have return successors, (11), 11 states have call predecessors, (11), 11 states have call successors, (11) [2023-11-22 20:53:54,031 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 238 states to 238 states and 294 transitions. [2023-11-22 20:53:54,031 INFO L78 Accepts]: Start accepts. Automaton has 238 states and 294 transitions. Word has length 23 [2023-11-22 20:53:54,032 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-22 20:53:54,032 INFO L495 AbstractCegarLoop]: Abstraction has 238 states and 294 transitions. [2023-11-22 20:53:54,032 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 10 states have (on average 1.9) internal successors, (19), 7 states have internal predecessors, (19), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-22 20:53:54,032 INFO L276 IsEmpty]: Start isEmpty. Operand 238 states and 294 transitions. [2023-11-22 20:53:54,033 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2023-11-22 20:53:54,033 INFO L187 NwaCegarLoop]: Found error trace [2023-11-22 20:53:54,033 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-22 20:53:54,033 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-11-22 20:53:54,033 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting failErr0ASSERT_VIOLATIONERROR_FUNCTION === [failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-22 20:53:54,033 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-22 20:53:54,034 INFO L85 PathProgramCache]: Analyzing trace with hash -1115915285, now seen corresponding path program 1 times [2023-11-22 20:53:54,034 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-22 20:53:54,034 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [175630609] [2023-11-22 20:53:54,034 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-22 20:53:54,034 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-22 20:53:54,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 20:53:54,349 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-11-22 20:53:54,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 20:53:54,448 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-22 20:53:54,448 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-22 20:53:54,448 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [175630609] [2023-11-22 20:53:54,449 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [175630609] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-22 20:53:54,449 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-22 20:53:54,449 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2023-11-22 20:53:54,449 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1257068035] [2023-11-22 20:53:54,449 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-22 20:53:54,449 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-11-22 20:53:54,450 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-22 20:53:54,450 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-11-22 20:53:54,450 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=90, Unknown=0, NotChecked=0, Total=110 [2023-11-22 20:53:54,450 INFO L87 Difference]: Start difference. First operand 238 states and 294 transitions. Second operand has 11 states, 10 states have (on average 2.2) internal successors, (22), 7 states have internal predecessors, (22), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-22 20:53:55,078 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-22 20:53:55,078 INFO L93 Difference]: Finished difference Result 258 states and 312 transitions. [2023-11-22 20:53:55,079 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-11-22 20:53:55,079 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 2.2) internal successors, (22), 7 states have internal predecessors, (22), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 26 [2023-11-22 20:53:55,079 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-22 20:53:55,080 INFO L225 Difference]: With dead ends: 258 [2023-11-22 20:53:55,080 INFO L226 Difference]: Without dead ends: 255 [2023-11-22 20:53:55,080 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=54, Invalid=218, Unknown=0, NotChecked=0, Total=272 [2023-11-22 20:53:55,081 INFO L413 NwaCegarLoop]: 21 mSDtfsCounter, 338 mSDsluCounter, 139 mSDsCounter, 0 mSdLazyCounter, 953 mSolverCounterSat, 37 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 341 SdHoareTripleChecker+Valid, 160 SdHoareTripleChecker+Invalid, 990 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 37 IncrementalHoareTripleChecker+Valid, 953 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-11-22 20:53:55,081 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [341 Valid, 160 Invalid, 990 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [37 Valid, 953 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-11-22 20:53:55,082 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 255 states. [2023-11-22 20:53:55,108 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 255 to 238. [2023-11-22 20:53:55,109 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 238 states, 203 states have (on average 1.251231527093596) internal successors, (254), 218 states have internal predecessors, (254), 28 states have call successors, (28), 8 states have call predecessors, (28), 6 states have return successors, (11), 11 states have call predecessors, (11), 11 states have call successors, (11) [2023-11-22 20:53:55,110 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 238 states to 238 states and 293 transitions. [2023-11-22 20:53:55,110 INFO L78 Accepts]: Start accepts. Automaton has 238 states and 293 transitions. Word has length 26 [2023-11-22 20:53:55,110 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-22 20:53:55,110 INFO L495 AbstractCegarLoop]: Abstraction has 238 states and 293 transitions. [2023-11-22 20:53:55,111 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 10 states have (on average 2.2) internal successors, (22), 7 states have internal predecessors, (22), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-22 20:53:55,111 INFO L276 IsEmpty]: Start isEmpty. Operand 238 states and 293 transitions. [2023-11-22 20:53:55,111 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2023-11-22 20:53:55,111 INFO L187 NwaCegarLoop]: Found error trace [2023-11-22 20:53:55,112 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-22 20:53:55,112 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-11-22 20:53:55,112 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting failErr0ASSERT_VIOLATIONERROR_FUNCTION === [failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-22 20:53:55,112 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-22 20:53:55,112 INFO L85 PathProgramCache]: Analyzing trace with hash -1422251983, now seen corresponding path program 1 times [2023-11-22 20:53:55,112 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-22 20:53:55,113 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1427593977] [2023-11-22 20:53:55,113 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-22 20:53:55,113 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-22 20:53:55,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 20:53:55,512 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-11-22 20:53:55,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 20:53:55,666 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-22 20:53:55,667 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-22 20:53:55,667 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1427593977] [2023-11-22 20:53:55,667 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1427593977] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-22 20:53:55,667 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-22 20:53:55,667 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2023-11-22 20:53:55,667 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [235318265] [2023-11-22 20:53:55,667 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-22 20:53:55,668 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-11-22 20:53:55,668 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-22 20:53:55,668 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-11-22 20:53:55,668 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=110, Unknown=0, NotChecked=0, Total=132 [2023-11-22 20:53:55,669 INFO L87 Difference]: Start difference. First operand 238 states and 293 transitions. Second operand has 12 states, 11 states have (on average 2.272727272727273) internal successors, (25), 8 states have internal predecessors, (25), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-22 20:53:56,430 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-22 20:53:56,430 INFO L93 Difference]: Finished difference Result 257 states and 310 transitions. [2023-11-22 20:53:56,430 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-11-22 20:53:56,431 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 2.272727272727273) internal successors, (25), 8 states have internal predecessors, (25), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 29 [2023-11-22 20:53:56,431 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-22 20:53:56,432 INFO L225 Difference]: With dead ends: 257 [2023-11-22 20:53:56,432 INFO L226 Difference]: Without dead ends: 254 [2023-11-22 20:53:56,432 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 26 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=66, Invalid=276, Unknown=0, NotChecked=0, Total=342 [2023-11-22 20:53:56,432 INFO L413 NwaCegarLoop]: 21 mSDtfsCounter, 332 mSDsluCounter, 155 mSDsCounter, 0 mSdLazyCounter, 1058 mSolverCounterSat, 35 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 335 SdHoareTripleChecker+Valid, 176 SdHoareTripleChecker+Invalid, 1093 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 35 IncrementalHoareTripleChecker+Valid, 1058 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2023-11-22 20:53:56,433 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [335 Valid, 176 Invalid, 1093 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [35 Valid, 1058 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2023-11-22 20:53:56,433 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 254 states. [2023-11-22 20:53:56,448 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 254 to 238. [2023-11-22 20:53:56,448 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 238 states, 203 states have (on average 1.2463054187192117) internal successors, (253), 218 states have internal predecessors, (253), 28 states have call successors, (28), 8 states have call predecessors, (28), 6 states have return successors, (11), 11 states have call predecessors, (11), 11 states have call successors, (11) [2023-11-22 20:53:56,449 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 238 states to 238 states and 292 transitions. [2023-11-22 20:53:56,449 INFO L78 Accepts]: Start accepts. Automaton has 238 states and 292 transitions. Word has length 29 [2023-11-22 20:53:56,450 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-22 20:53:56,450 INFO L495 AbstractCegarLoop]: Abstraction has 238 states and 292 transitions. [2023-11-22 20:53:56,450 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 2.272727272727273) internal successors, (25), 8 states have internal predecessors, (25), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-22 20:53:56,450 INFO L276 IsEmpty]: Start isEmpty. Operand 238 states and 292 transitions. [2023-11-22 20:53:56,451 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2023-11-22 20:53:56,451 INFO L187 NwaCegarLoop]: Found error trace [2023-11-22 20:53:56,451 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-22 20:53:56,451 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-11-22 20:53:56,451 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting failErr0ASSERT_VIOLATIONERROR_FUNCTION === [failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-22 20:53:56,451 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-22 20:53:56,452 INFO L85 PathProgramCache]: Analyzing trace with hash -678942440, now seen corresponding path program 1 times [2023-11-22 20:53:56,452 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-22 20:53:56,452 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1034259442] [2023-11-22 20:53:56,452 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-22 20:53:56,452 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-22 20:53:56,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 20:53:56,943 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-11-22 20:53:56,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 20:53:57,116 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-22 20:53:57,117 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-22 20:53:57,117 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1034259442] [2023-11-22 20:53:57,117 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1034259442] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-22 20:53:57,117 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-22 20:53:57,117 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2023-11-22 20:53:57,118 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [432845857] [2023-11-22 20:53:57,118 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-22 20:53:57,118 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-11-22 20:53:57,118 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-22 20:53:57,119 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-11-22 20:53:57,119 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=110, Unknown=0, NotChecked=0, Total=132 [2023-11-22 20:53:57,119 INFO L87 Difference]: Start difference. First operand 238 states and 292 transitions. Second operand has 12 states, 11 states have (on average 2.5454545454545454) internal successors, (28), 8 states have internal predecessors, (28), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-22 20:53:57,857 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-22 20:53:57,858 INFO L93 Difference]: Finished difference Result 256 states and 308 transitions. [2023-11-22 20:53:57,858 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-11-22 20:53:57,858 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 2.5454545454545454) internal successors, (28), 8 states have internal predecessors, (28), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 32 [2023-11-22 20:53:57,858 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-22 20:53:57,859 INFO L225 Difference]: With dead ends: 256 [2023-11-22 20:53:57,859 INFO L226 Difference]: Without dead ends: 253 [2023-11-22 20:53:57,859 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 26 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=66, Invalid=276, Unknown=0, NotChecked=0, Total=342 [2023-11-22 20:53:57,860 INFO L413 NwaCegarLoop]: 21 mSDtfsCounter, 325 mSDsluCounter, 155 mSDsCounter, 0 mSdLazyCounter, 1058 mSolverCounterSat, 33 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 328 SdHoareTripleChecker+Valid, 176 SdHoareTripleChecker+Invalid, 1091 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 33 IncrementalHoareTripleChecker+Valid, 1058 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2023-11-22 20:53:57,860 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [328 Valid, 176 Invalid, 1091 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [33 Valid, 1058 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2023-11-22 20:53:57,860 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 253 states. [2023-11-22 20:53:57,875 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 253 to 238. [2023-11-22 20:53:57,876 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 238 states, 203 states have (on average 1.2413793103448276) internal successors, (252), 218 states have internal predecessors, (252), 28 states have call successors, (28), 8 states have call predecessors, (28), 6 states have return successors, (11), 11 states have call predecessors, (11), 11 states have call successors, (11) [2023-11-22 20:53:57,877 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 238 states to 238 states and 291 transitions. [2023-11-22 20:53:57,877 INFO L78 Accepts]: Start accepts. Automaton has 238 states and 291 transitions. Word has length 32 [2023-11-22 20:53:57,877 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-22 20:53:57,878 INFO L495 AbstractCegarLoop]: Abstraction has 238 states and 291 transitions. [2023-11-22 20:53:57,878 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 2.5454545454545454) internal successors, (28), 8 states have internal predecessors, (28), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-22 20:53:57,878 INFO L276 IsEmpty]: Start isEmpty. Operand 238 states and 291 transitions. [2023-11-22 20:53:57,878 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2023-11-22 20:53:57,879 INFO L187 NwaCegarLoop]: Found error trace [2023-11-22 20:53:57,879 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-22 20:53:57,879 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-11-22 20:53:57,879 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting failErr0ASSERT_VIOLATIONERROR_FUNCTION === [failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-22 20:53:57,879 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-22 20:53:57,879 INFO L85 PathProgramCache]: Analyzing trace with hash -58033664, now seen corresponding path program 1 times [2023-11-22 20:53:57,880 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-22 20:53:57,880 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1289577087] [2023-11-22 20:53:57,880 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-22 20:53:57,880 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-22 20:53:57,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 20:53:58,554 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-11-22 20:53:58,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 20:53:58,638 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-11-22 20:53:58,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 20:53:58,734 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-11-22 20:53:58,735 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-22 20:53:58,735 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1289577087] [2023-11-22 20:53:58,735 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1289577087] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-22 20:53:58,735 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [947217176] [2023-11-22 20:53:58,735 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-22 20:53:58,735 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-22 20:53:58,736 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-22 20:53:58,737 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) [2023-11-22 20:53:58,745 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-11-22 20:53:58,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 20:53:58,893 INFO L262 TraceCheckSpWp]: Trace formula consists of 293 conjuncts, 68 conjunts are in the unsatisfiable core [2023-11-22 20:53:58,899 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-22 20:53:58,982 INFO L349 Elim1Store]: treesize reduction 20, result has 33.3 percent of original size [2023-11-22 20:53:58,983 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 19 treesize of output 16 [2023-11-22 20:53:59,036 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 16 treesize of output 11 [2023-11-22 20:53:59,045 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 16 treesize of output 11 [2023-11-22 20:53:59,161 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 37 treesize of output 42 [2023-11-22 20:53:59,171 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 43 [2023-11-22 20:53:59,232 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-22 20:53:59,235 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 23 treesize of output 14 [2023-11-22 20:53:59,238 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 22 treesize of output 22 [2023-11-22 20:53:59,326 INFO L349 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2023-11-22 20:53:59,326 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 11 treesize of output 11 [2023-11-22 20:53:59,381 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 28 treesize of output 19 [2023-11-22 20:53:59,417 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 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 61 treesize of output 53 [2023-11-22 20:53:59,482 INFO L349 Elim1Store]: treesize reduction 52, result has 22.4 percent of original size [2023-11-22 20:53:59,483 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 4 new quantified variables, introduced 2 case distinctions, treesize of input 73 treesize of output 51 [2023-11-22 20:53:59,486 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-22 20:53:59,499 INFO L349 Elim1Store]: treesize reduction 38, result has 19.1 percent of original size [2023-11-22 20:53:59,500 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 3 new quantified variables, introduced 2 case distinctions, treesize of input 47 treesize of output 48 [2023-11-22 20:53:59,505 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 0 case distinctions, treesize of input 35 treesize of output 31 [2023-11-22 20:53:59,515 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 7 treesize of output 3 [2023-11-22 20:53:59,581 INFO L349 Elim1Store]: treesize reduction 40, result has 27.3 percent of original size [2023-11-22 20:53:59,582 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 62 treesize of output 63 [2023-11-22 20:53:59,829 INFO L349 Elim1Store]: treesize reduction 26, result has 3.7 percent of original size [2023-11-22 20:53:59,829 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 4 new quantified variables, introduced 2 case distinctions, treesize of input 53 treesize of output 22 [2023-11-22 20:53:59,854 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-22 20:53:59,854 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-22 20:54:00,014 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 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 68 treesize of output 60 [2023-11-22 20:54:00,018 WARN L854 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_568 (Array Int Int)) (v_ArrVal_573 (Array Int Int)) (v_arrayElimCell_26 Int)) (not (= (select (select (store (let ((.cse0 (let ((.cse1 (select (select |c_#memory_$Pointer$.base| |c_~#gl_list~0.base|) |c_~#gl_list~0.offset|))) (store |c_#memory_$Pointer$.base| .cse1 (store (select |c_#memory_$Pointer$.base| .cse1) (+ 4 v_arrayElimCell_26) |c_ULTIMATE.start_gl_insert_~node~1#1.base|))))) (store .cse0 |c_~#gl_list~0.base| (store (select (store .cse0 |c_ULTIMATE.start_gl_insert_~node~1#1.base| v_ArrVal_573) |c_~#gl_list~0.base|) |c_~#gl_list~0.offset| |c_ULTIMATE.start_gl_insert_~node~1#1.base|))) |c_ULTIMATE.start_gl_insert_~node~1#1.base| v_ArrVal_568) |c_~#gl_list~0.base|) (+ |c_~#gl_list~0.offset| 4)) |c_~#gl_list~0.base|))) is different from false [2023-11-22 20:54:00,019 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [947217176] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-22 20:54:00,019 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-22 20:54:00,019 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 15] total 29 [2023-11-22 20:54:00,019 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1188990956] [2023-11-22 20:54:00,019 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-22 20:54:00,020 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 30 states [2023-11-22 20:54:00,020 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-22 20:54:00,020 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2023-11-22 20:54:00,021 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=105, Invalid=944, Unknown=11, NotChecked=62, Total=1122 [2023-11-22 20:54:00,021 INFO L87 Difference]: Start difference. First operand 238 states and 291 transitions. Second operand has 30 states, 26 states have (on average 2.0) internal successors, (52), 20 states have internal predecessors, (52), 7 states have call successors, (7), 6 states have call predecessors, (7), 4 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2023-11-22 20:54:05,971 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-22 20:54:05,975 INFO L93 Difference]: Finished difference Result 364 states and 432 transitions. [2023-11-22 20:54:05,976 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2023-11-22 20:54:05,976 INFO L78 Accepts]: Start accepts. Automaton has has 30 states, 26 states have (on average 2.0) internal successors, (52), 20 states have internal predecessors, (52), 7 states have call successors, (7), 6 states have call predecessors, (7), 4 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) Word has length 33 [2023-11-22 20:54:05,977 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-22 20:54:05,978 INFO L225 Difference]: With dead ends: 364 [2023-11-22 20:54:05,978 INFO L226 Difference]: Without dead ends: 361 [2023-11-22 20:54:05,979 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 94 GetRequests, 36 SyntacticMatches, 0 SemanticMatches, 58 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 674 ImplicationChecksByTransitivity, 3.7s TimeCoverageRelationStatistics Valid=532, Invalid=2874, Unknown=20, NotChecked=114, Total=3540 [2023-11-22 20:54:05,980 INFO L413 NwaCegarLoop]: 20 mSDtfsCounter, 1835 mSDsluCounter, 296 mSDsCounter, 0 mSdLazyCounter, 2444 mSolverCounterSat, 380 mSolverCounterUnsat, 89 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1835 SdHoareTripleChecker+Valid, 316 SdHoareTripleChecker+Invalid, 2913 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 380 IncrementalHoareTripleChecker+Valid, 2444 IncrementalHoareTripleChecker+Invalid, 89 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.7s IncrementalHoareTripleChecker+Time [2023-11-22 20:54:05,980 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1835 Valid, 316 Invalid, 2913 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [380 Valid, 2444 Invalid, 89 Unknown, 0 Unchecked, 2.7s Time] [2023-11-22 20:54:05,981 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 361 states. [2023-11-22 20:54:06,014 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 361 to 240. [2023-11-22 20:54:06,015 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 240 states, 204 states have (on average 1.2352941176470589) internal successors, (252), 219 states have internal predecessors, (252), 28 states have call successors, (28), 9 states have call predecessors, (28), 7 states have return successors, (11), 11 states have call predecessors, (11), 11 states have call successors, (11) [2023-11-22 20:54:06,017 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 240 states to 240 states and 291 transitions. [2023-11-22 20:54:06,017 INFO L78 Accepts]: Start accepts. Automaton has 240 states and 291 transitions. Word has length 33 [2023-11-22 20:54:06,018 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-22 20:54:06,018 INFO L495 AbstractCegarLoop]: Abstraction has 240 states and 291 transitions. [2023-11-22 20:54:06,018 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 30 states, 26 states have (on average 2.0) internal successors, (52), 20 states have internal predecessors, (52), 7 states have call successors, (7), 6 states have call predecessors, (7), 4 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2023-11-22 20:54:06,018 INFO L276 IsEmpty]: Start isEmpty. Operand 240 states and 291 transitions. [2023-11-22 20:54:06,019 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2023-11-22 20:54:06,019 INFO L187 NwaCegarLoop]: Found error trace [2023-11-22 20:54:06,019 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-22 20:54:06,035 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-11-22 20:54:06,224 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-22 20:54:06,225 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting failErr0ASSERT_VIOLATIONERROR_FUNCTION === [failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-22 20:54:06,225 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-22 20:54:06,225 INFO L85 PathProgramCache]: Analyzing trace with hash -1581408063, now seen corresponding path program 1 times [2023-11-22 20:54:06,225 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-22 20:54:06,225 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1604446152] [2023-11-22 20:54:06,225 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-22 20:54:06,226 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-22 20:54:06,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 20:54:06,590 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-11-22 20:54:06,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 20:54:06,663 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-22 20:54:06,664 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-22 20:54:06,664 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1604446152] [2023-11-22 20:54:06,664 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1604446152] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-22 20:54:06,664 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-22 20:54:06,664 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2023-11-22 20:54:06,664 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1615824371] [2023-11-22 20:54:06,664 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-22 20:54:06,665 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-11-22 20:54:06,666 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-22 20:54:06,666 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-11-22 20:54:06,666 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=110, Unknown=0, NotChecked=0, Total=132 [2023-11-22 20:54:06,667 INFO L87 Difference]: Start difference. First operand 240 states and 291 transitions. Second operand has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 8 states have internal predecessors, (31), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-22 20:54:07,482 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-22 20:54:07,483 INFO L93 Difference]: Finished difference Result 257 states and 306 transitions. [2023-11-22 20:54:07,483 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2023-11-22 20:54:07,483 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 8 states have internal predecessors, (31), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 35 [2023-11-22 20:54:07,483 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-22 20:54:07,484 INFO L225 Difference]: With dead ends: 257 [2023-11-22 20:54:07,484 INFO L226 Difference]: Without dead ends: 254 [2023-11-22 20:54:07,485 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 67 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=105, Invalid=447, Unknown=0, NotChecked=0, Total=552 [2023-11-22 20:54:07,485 INFO L413 NwaCegarLoop]: 19 mSDtfsCounter, 399 mSDsluCounter, 144 mSDsCounter, 0 mSdLazyCounter, 978 mSolverCounterSat, 49 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 402 SdHoareTripleChecker+Valid, 163 SdHoareTripleChecker+Invalid, 1027 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 49 IncrementalHoareTripleChecker+Valid, 978 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2023-11-22 20:54:07,485 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [402 Valid, 163 Invalid, 1027 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [49 Valid, 978 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2023-11-22 20:54:07,486 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 254 states. [2023-11-22 20:54:07,513 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 254 to 240. [2023-11-22 20:54:07,514 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 240 states, 204 states have (on average 1.2303921568627452) internal successors, (251), 219 states have internal predecessors, (251), 28 states have call successors, (28), 9 states have call predecessors, (28), 7 states have return successors, (11), 11 states have call predecessors, (11), 11 states have call successors, (11) [2023-11-22 20:54:07,517 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 240 states to 240 states and 290 transitions. [2023-11-22 20:54:07,517 INFO L78 Accepts]: Start accepts. Automaton has 240 states and 290 transitions. Word has length 35 [2023-11-22 20:54:07,518 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-22 20:54:07,519 INFO L495 AbstractCegarLoop]: Abstraction has 240 states and 290 transitions. [2023-11-22 20:54:07,519 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 8 states have internal predecessors, (31), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-22 20:54:07,519 INFO L276 IsEmpty]: Start isEmpty. Operand 240 states and 290 transitions. [2023-11-22 20:54:07,519 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2023-11-22 20:54:07,519 INFO L187 NwaCegarLoop]: Found error trace [2023-11-22 20:54:07,519 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-22 20:54:07,520 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-11-22 20:54:07,520 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting failErr0ASSERT_VIOLATIONERROR_FUNCTION === [failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-22 20:54:07,520 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-22 20:54:07,520 INFO L85 PathProgramCache]: Analyzing trace with hash 1738679921, now seen corresponding path program 1 times [2023-11-22 20:54:07,520 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-22 20:54:07,521 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [370313895] [2023-11-22 20:54:07,521 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-22 20:54:07,521 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-22 20:54:07,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 20:54:08,100 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-11-22 20:54:08,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 20:54:08,205 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-11-22 20:54:08,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 20:54:08,295 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-11-22 20:54:08,296 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-22 20:54:08,296 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [370313895] [2023-11-22 20:54:08,296 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [370313895] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-22 20:54:08,296 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [161393853] [2023-11-22 20:54:08,296 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-22 20:54:08,296 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-22 20:54:08,296 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-22 20:54:08,300 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) [2023-11-22 20:54:08,304 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-11-22 20:54:08,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 20:54:08,434 INFO L262 TraceCheckSpWp]: Trace formula consists of 299 conjuncts, 68 conjunts are in the unsatisfiable core [2023-11-22 20:54:08,442 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-22 20:54:08,466 INFO L349 Elim1Store]: treesize reduction 20, result has 33.3 percent of original size [2023-11-22 20:54:08,467 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 2 case distinctions, treesize of input 19 treesize of output 16 [2023-11-22 20:54:08,521 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 16 treesize of output 11 [2023-11-22 20:54:08,529 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 16 treesize of output 11 [2023-11-22 20:54:08,607 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 37 treesize of output 42 [2023-11-22 20:54:08,610 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-22 20:54:08,612 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 32 treesize of output 15 [2023-11-22 20:54:08,614 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 17 treesize of output 18 [2023-11-22 20:54:08,670 INFO L349 Elim1Store]: treesize reduction 19, result has 20.8 percent of original size [2023-11-22 20:54:08,671 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 44 treesize of output 39 [2023-11-22 20:54:08,744 INFO L349 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2023-11-22 20:54:08,745 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 11 treesize of output 11 [2023-11-22 20:54:08,794 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 36 treesize of output 25 [2023-11-22 20:54:08,841 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 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 36 treesize of output 32 [2023-11-22 20:54:08,850 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 43 treesize of output 39 [2023-11-22 20:54:08,856 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 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 36 treesize of output 32 [2023-11-22 20:54:08,863 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 43 treesize of output 39 [2023-11-22 20:54:08,876 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 56 treesize of output 52 [2023-11-22 20:54:08,881 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 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 49 treesize of output 45 [2023-11-22 20:54:09,154 INFO L349 Elim1Store]: treesize reduction 140, result has 9.7 percent of original size [2023-11-22 20:54:09,155 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 4 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 7 new quantified variables, introduced 6 case distinctions, treesize of input 137 treesize of output 245 [2023-11-22 20:54:09,163 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-22 20:54:09,166 INFO L173 IndexEqualityManager]: detected equality via solver [2023-11-22 20:54:09,186 INFO L349 Elim1Store]: treesize reduction 113, result has 4.2 percent of original size [2023-11-22 20:54:09,186 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 3 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 6 case distinctions, treesize of input 253 treesize of output 188 [2023-11-22 20:54:09,206 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 26 treesize of output 25 [2023-11-22 20:54:09,211 INFO L173 IndexEqualityManager]: detected equality via solver [2023-11-22 20:54:09,215 INFO L173 IndexEqualityManager]: detected equality via solver [2023-11-22 20:54:09,216 INFO L173 IndexEqualityManager]: detected equality via solver [2023-11-22 20:54:09,218 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 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 116 treesize of output 74 [2023-11-22 20:54:09,248 WARN L214 Elim1Store]: Array PQE input equivalent to false [2023-11-22 20:54:09,309 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 32 treesize of output 31 [2023-11-22 20:54:09,331 INFO L173 IndexEqualityManager]: detected equality via solver [2023-11-22 20:54:09,336 INFO L173 IndexEqualityManager]: detected equality via solver [2023-11-22 20:54:09,336 INFO L173 IndexEqualityManager]: detected equality via solver [2023-11-22 20:54:09,338 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 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 151 treesize of output 103 [2023-11-22 20:54:10,008 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-22 20:54:10,505 INFO L349 Elim1Store]: treesize reduction 666, result has 23.8 percent of original size [2023-11-22 20:54:10,507 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 11 select indices, 11 select index equivalence classes, 1 disjoint index pairs (out of 55 index pairs), introduced 11 new quantified variables, introduced 63 case distinctions, treesize of input 126902 treesize of output 124020 [2023-11-22 20:54:11,442 INFO L349 Elim1Store]: treesize reduction 22, result has 52.2 percent of original size [2023-11-22 20:54:11,443 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 4 new quantified variables, introduced 3 case distinctions, treesize of input 8413 treesize of output 8365 [2023-11-22 20:54:11,698 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 9634 treesize of output 9626 [2023-11-22 20:54:11,961 INFO L349 Elim1Store]: treesize reduction 24, result has 50.0 percent of original size [2023-11-22 20:54:11,961 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 4 new quantified variables, introduced 3 case distinctions, treesize of input 9654 treesize of output 9642 [2023-11-22 20:54:12,271 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 3 new quantified variables, introduced 0 case distinctions, treesize of input 9615 treesize of output 9604 [2023-11-22 20:54:14,017 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 10 treesize of output 9 [2023-11-22 20:54:14,346 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 9 treesize of output 5 [2023-11-22 20:54:14,444 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 3 new quantified variables, introduced 0 case distinctions, treesize of input 197 treesize of output 197 [2023-11-22 20:54:14,699 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 7 treesize of output 5 [2023-11-22 20:54:14,706 WARN L214 Elim1Store]: Array PQE input equivalent to false [2023-11-22 20:54:14,717 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 28 treesize of output 22 [2023-11-22 20:54:14,737 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 0 case distinctions, treesize of input 30 treesize of output 28 [2023-11-22 20:54:14,747 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 9 treesize of output 5 [2023-11-22 20:54:14,749 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 75 treesize of output 63 [2023-11-22 20:54:14,752 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 68 treesize of output 58 [2023-11-22 20:54:14,754 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 61 treesize of output 53 [2023-11-22 20:54:14,988 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 32 treesize of output 16 [2023-11-22 20:54:15,023 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-22 20:54:15,023 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-22 20:54:15,277 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 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 53 treesize of output 49 [2023-11-22 20:54:15,341 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [161393853] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-22 20:54:15,341 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-22 20:54:15,341 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 15] total 27 [2023-11-22 20:54:15,342 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [863280145] [2023-11-22 20:54:15,342 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-22 20:54:15,342 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2023-11-22 20:54:15,342 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-22 20:54:15,343 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2023-11-22 20:54:15,343 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=101, Invalid=1007, Unknown=14, NotChecked=0, Total=1122 [2023-11-22 20:54:15,343 INFO L87 Difference]: Start difference. First operand 240 states and 290 transitions. Second operand has 28 states, 24 states have (on average 2.4166666666666665) internal successors, (58), 18 states have internal predecessors, (58), 7 states have call successors, (7), 6 states have call predecessors, (7), 4 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2023-11-22 20:54:19,631 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-22 20:54:19,631 INFO L93 Difference]: Finished difference Result 274 states and 321 transitions. [2023-11-22 20:54:19,631 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2023-11-22 20:54:19,631 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 24 states have (on average 2.4166666666666665) internal successors, (58), 18 states have internal predecessors, (58), 7 states have call successors, (7), 6 states have call predecessors, (7), 4 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) Word has length 36 [2023-11-22 20:54:19,631 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-22 20:54:19,633 INFO L225 Difference]: With dead ends: 274 [2023-11-22 20:54:19,633 INFO L226 Difference]: Without dead ends: 271 [2023-11-22 20:54:19,633 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 91 GetRequests, 40 SyntacticMatches, 0 SemanticMatches, 51 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 429 ImplicationChecksByTransitivity, 2.7s TimeCoverageRelationStatistics Valid=361, Invalid=2378, Unknown=17, NotChecked=0, Total=2756 [2023-11-22 20:54:19,634 INFO L413 NwaCegarLoop]: 20 mSDtfsCounter, 1587 mSDsluCounter, 288 mSDsCounter, 0 mSdLazyCounter, 2371 mSolverCounterSat, 275 mSolverCounterUnsat, 12 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1587 SdHoareTripleChecker+Valid, 308 SdHoareTripleChecker+Invalid, 2658 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 275 IncrementalHoareTripleChecker+Valid, 2371 IncrementalHoareTripleChecker+Invalid, 12 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.6s IncrementalHoareTripleChecker+Time [2023-11-22 20:54:19,634 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1587 Valid, 308 Invalid, 2658 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [275 Valid, 2371 Invalid, 12 Unknown, 0 Unchecked, 2.6s Time] [2023-11-22 20:54:19,634 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 271 states. [2023-11-22 20:54:19,661 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 271 to 246. [2023-11-22 20:54:19,662 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 246 states, 208 states have (on average 1.2211538461538463) internal successors, (254), 224 states have internal predecessors, (254), 29 states have call successors, (29), 10 states have call predecessors, (29), 8 states have return successors, (12), 11 states have call predecessors, (12), 12 states have call successors, (12) [2023-11-22 20:54:19,663 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 246 states to 246 states and 295 transitions. [2023-11-22 20:54:19,663 INFO L78 Accepts]: Start accepts. Automaton has 246 states and 295 transitions. Word has length 36 [2023-11-22 20:54:19,663 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-22 20:54:19,663 INFO L495 AbstractCegarLoop]: Abstraction has 246 states and 295 transitions. [2023-11-22 20:54:19,663 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 24 states have (on average 2.4166666666666665) internal successors, (58), 18 states have internal predecessors, (58), 7 states have call successors, (7), 6 states have call predecessors, (7), 4 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2023-11-22 20:54:19,664 INFO L276 IsEmpty]: Start isEmpty. Operand 246 states and 295 transitions. [2023-11-22 20:54:19,664 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2023-11-22 20:54:19,664 INFO L187 NwaCegarLoop]: Found error trace [2023-11-22 20:54:19,664 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-22 20:54:19,676 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2023-11-22 20:54:19,868 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2023-11-22 20:54:19,868 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting failErr0ASSERT_VIOLATIONERROR_FUNCTION === [failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-22 20:54:19,869 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-22 20:54:19,869 INFO L85 PathProgramCache]: Analyzing trace with hash -424121341, now seen corresponding path program 1 times [2023-11-22 20:54:19,869 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-22 20:54:19,869 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [63814770] [2023-11-22 20:54:19,869 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-22 20:54:19,869 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-22 20:54:19,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 20:54:20,436 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-11-22 20:54:20,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 20:54:20,574 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-22 20:54:20,574 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-22 20:54:20,574 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [63814770] [2023-11-22 20:54:20,574 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [63814770] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-22 20:54:20,574 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-22 20:54:20,574 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2023-11-22 20:54:20,575 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1914095054] [2023-11-22 20:54:20,575 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-22 20:54:20,575 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2023-11-22 20:54:20,575 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-22 20:54:20,576 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2023-11-22 20:54:20,576 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=181, Unknown=0, NotChecked=0, Total=210 [2023-11-22 20:54:20,576 INFO L87 Difference]: Start difference. First operand 246 states and 295 transitions. Second operand has 15 states, 14 states have (on average 2.4285714285714284) internal successors, (34), 11 states have internal predecessors, (34), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-22 20:54:21,685 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-22 20:54:21,686 INFO L93 Difference]: Finished difference Result 259 states and 306 transitions. [2023-11-22 20:54:21,686 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2023-11-22 20:54:21,686 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 14 states have (on average 2.4285714285714284) internal successors, (34), 11 states have internal predecessors, (34), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 38 [2023-11-22 20:54:21,686 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-22 20:54:21,687 INFO L225 Difference]: With dead ends: 259 [2023-11-22 20:54:21,687 INFO L226 Difference]: Without dead ends: 256 [2023-11-22 20:54:21,688 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 56 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=111, Invalid=539, Unknown=0, NotChecked=0, Total=650 [2023-11-22 20:54:21,688 INFO L413 NwaCegarLoop]: 21 mSDtfsCounter, 361 mSDsluCounter, 171 mSDsCounter, 0 mSdLazyCounter, 1171 mSolverCounterSat, 30 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 364 SdHoareTripleChecker+Valid, 192 SdHoareTripleChecker+Invalid, 1201 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 30 IncrementalHoareTripleChecker+Valid, 1171 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2023-11-22 20:54:21,688 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [364 Valid, 192 Invalid, 1201 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [30 Valid, 1171 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2023-11-22 20:54:21,689 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 256 states. [2023-11-22 20:54:21,720 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 256 to 246. [2023-11-22 20:54:21,720 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 246 states, 208 states have (on average 1.2163461538461537) internal successors, (253), 224 states have internal predecessors, (253), 29 states have call successors, (29), 10 states have call predecessors, (29), 8 states have return successors, (12), 11 states have call predecessors, (12), 12 states have call successors, (12) [2023-11-22 20:54:21,721 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 246 states to 246 states and 294 transitions. [2023-11-22 20:54:21,721 INFO L78 Accepts]: Start accepts. Automaton has 246 states and 294 transitions. Word has length 38 [2023-11-22 20:54:21,721 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-22 20:54:21,721 INFO L495 AbstractCegarLoop]: Abstraction has 246 states and 294 transitions. [2023-11-22 20:54:21,721 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 14 states have (on average 2.4285714285714284) internal successors, (34), 11 states have internal predecessors, (34), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-22 20:54:21,721 INFO L276 IsEmpty]: Start isEmpty. Operand 246 states and 294 transitions. [2023-11-22 20:54:21,722 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2023-11-22 20:54:21,722 INFO L187 NwaCegarLoop]: Found error trace [2023-11-22 20:54:21,722 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-22 20:54:21,722 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2023-11-22 20:54:21,722 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting failErr0ASSERT_VIOLATIONERROR_FUNCTION === [failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-22 20:54:21,723 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-22 20:54:21,723 INFO L85 PathProgramCache]: Analyzing trace with hash -528930837, now seen corresponding path program 1 times [2023-11-22 20:54:21,723 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-22 20:54:21,723 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [866105966] [2023-11-22 20:54:21,723 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-22 20:54:21,723 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-22 20:54:21,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 20:54:22,610 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-11-22 20:54:22,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 20:54:22,800 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-11-22 20:54:22,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 20:54:22,965 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-11-22 20:54:22,965 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-22 20:54:22,965 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [866105966] [2023-11-22 20:54:22,965 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [866105966] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-22 20:54:22,965 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [428344544] [2023-11-22 20:54:22,965 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-22 20:54:22,965 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-22 20:54:22,965 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-22 20:54:22,967 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) [2023-11-22 20:54:22,968 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-11-22 20:54:23,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 20:54:23,118 INFO L262 TraceCheckSpWp]: Trace formula consists of 305 conjuncts, 105 conjunts are in the unsatisfiable core [2023-11-22 20:54:23,122 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-22 20:54:23,147 INFO L349 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2023-11-22 20:54:23,147 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 17 treesize of output 21 [2023-11-22 20:54:23,194 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 16 treesize of output 11 [2023-11-22 20:54:23,203 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 16 treesize of output 11 [2023-11-22 20:54:23,441 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 3 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 65 treesize of output 61 [2023-11-22 20:54:23,447 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 14 treesize of output 18 [2023-11-22 20:54:23,450 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 62 treesize of output 61 [2023-11-22 20:54:23,455 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 23 treesize of output 22 [2023-11-22 20:54:23,477 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 3 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 69 treesize of output 65 [2023-11-22 20:54:23,481 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 60 treesize of output 61 [2023-11-22 20:54:23,486 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 23 treesize of output 22 [2023-11-22 20:54:23,494 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 34 [2023-11-22 20:54:23,610 INFO L349 Elim1Store]: treesize reduction 38, result has 11.6 percent of original size [2023-11-22 20:54:23,610 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 2 new quantified variables, introduced 2 case distinctions, treesize of input 158 treesize of output 118 [2023-11-22 20:54:23,615 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 23 treesize of output 14 [2023-11-22 20:54:23,630 INFO L349 Elim1Store]: treesize reduction 28, result has 15.2 percent of original size [2023-11-22 20:54:23,630 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 3 new quantified variables, introduced 2 case distinctions, treesize of input 199 treesize of output 136 [2023-11-22 20:54:23,639 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 40 [2023-11-22 20:54:23,650 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 44 [2023-11-22 20:54:23,661 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 0 case distinctions, treesize of input 27 treesize of output 18 [2023-11-22 20:54:23,832 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-22 20:54:23,846 INFO L349 Elim1Store]: treesize reduction 24, result has 41.5 percent of original size [2023-11-22 20:54:23,846 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 2 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 4 case distinctions, treesize of input 25 treesize of output 29 [2023-11-22 20:54:23,947 INFO L349 Elim1Store]: treesize reduction 11, result has 8.3 percent of original size [2023-11-22 20:54:23,947 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 1 case distinctions, treesize of input 49 treesize of output 35 [2023-11-22 20:54:23,959 INFO L349 Elim1Store]: treesize reduction 25, result has 16.7 percent of original size [2023-11-22 20:54:23,959 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 3 new quantified variables, introduced 2 case distinctions, treesize of input 98 treesize of output 73 [2023-11-22 20:54:32,048 INFO L349 Elim1Store]: treesize reduction 124, result has 32.6 percent of original size [2023-11-22 20:54:32,049 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 7 disjoint index pairs (out of 10 index pairs), introduced 7 new quantified variables, introduced 14 case distinctions, treesize of input 840 treesize of output 667 [2023-11-22 20:54:32,057 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-22 20:54:32,455 INFO L349 Elim1Store]: treesize reduction 42, result has 10.6 percent of original size [2023-11-22 20:54:32,455 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 3 new quantified variables, introduced 2 case distinctions, treesize of input 834 treesize of output 729 [2023-11-22 20:54:32,467 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 0 case distinctions, treesize of input 730 treesize of output 638 [2023-11-22 20:54:32,678 INFO L349 Elim1Store]: treesize reduction 492, result has 30.9 percent of original size [2023-11-22 20:54:32,678 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 4 stores, 5 select indices, 5 select index equivalence classes, 9 disjoint index pairs (out of 10 index pairs), introduced 10 new quantified variables, introduced 21 case distinctions, treesize of input 808 treesize of output 666 [2023-11-22 20:54:32,745 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-22 20:54:32,784 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 3 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 148 treesize of output 122 [2023-11-22 20:54:32,793 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 15 treesize of output 11 [2023-11-22 20:54:33,485 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-22 20:54:33,490 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 153 treesize of output 95 [2023-11-22 20:54:33,508 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-11-22 20:54:33,509 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 3 case distinctions, treesize of input 65 treesize of output 87 [2023-11-22 20:54:33,523 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 15 treesize of output 11 [2023-11-22 20:54:33,528 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-11-22 20:54:33,528 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 17 treesize of output 11 [2023-11-22 20:54:33,683 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-22 20:54:33,684 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-22 20:54:33,685 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-22 20:54:33,688 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-22 20:54:33,691 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 396 treesize of output 338 [2023-11-22 20:54:33,697 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 15 treesize of output 11 [2023-11-22 20:54:33,702 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 15 treesize of output 11 [2023-11-22 20:54:33,706 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 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 24 treesize of output 18 [2023-11-22 20:54:33,715 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-22 20:54:33,724 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-11-22 20:54:33,724 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 4 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 2 case distinctions, treesize of input 41 treesize of output 51 [2023-11-22 20:54:33,737 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 15 treesize of output 11 [2023-11-22 20:54:33,742 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-11-22 20:54:33,742 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 17 treesize of output 11 [2023-11-22 20:54:33,747 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 15 treesize of output 11 [2023-11-22 20:54:33,755 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 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 24 treesize of output 18 [2023-11-22 20:54:33,759 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 15 treesize of output 11 [2023-11-22 20:54:33,764 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 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 24 treesize of output 18 [2023-11-22 20:54:33,771 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-11-22 20:54:33,771 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 17 treesize of output 11 [2023-11-22 20:54:33,787 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-11-22 20:54:33,787 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 3 case distinctions, treesize of input 65 treesize of output 87 [2023-11-22 20:54:35,276 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-22 20:54:35,278 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-22 20:54:35,279 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 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 102 treesize of output 50 [2023-11-22 20:54:35,284 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 15 treesize of output 11 [2023-11-22 20:54:35,288 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 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 24 treesize of output 18 [2023-11-22 20:54:35,352 INFO L349 Elim1Store]: treesize reduction 32, result has 3.0 percent of original size [2023-11-22 20:54:35,353 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 518 treesize of output 398 [2023-11-22 20:54:35,373 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-11-22 20:54:35,373 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 3 case distinctions, treesize of input 293 treesize of output 303 [2023-11-22 20:54:35,429 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-11-22 20:54:35,430 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 15 case distinctions, treesize of input 300 treesize of output 378 [2023-11-22 20:54:56,238 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 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 24 treesize of output 18 [2023-11-22 20:54:56,251 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 15 treesize of output 11 [2023-11-22 20:54:59,663 INFO L349 Elim1Store]: treesize reduction 44, result has 20.0 percent of original size [2023-11-22 20:54:59,664 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 5126 treesize of output 3941 [2023-11-22 20:54:59,724 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-22 20:54:59,726 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-22 20:54:59,772 INFO L349 Elim1Store]: treesize reduction 11, result has 8.3 percent of original size [2023-11-22 20:54:59,773 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 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 4388 treesize of output 3392 [2023-11-22 20:54:59,937 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-11-22 20:54:59,937 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 41 treesize of output 31 [2023-11-22 20:54:59,970 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-11-22 20:54:59,970 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 50 treesize of output 40 [2023-11-22 20:54:59,992 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-11-22 20:54:59,992 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 50 treesize of output 40 [2023-11-22 20:55:00,026 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-11-22 20:55:00,026 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 35 treesize of output 27 [2023-11-22 20:55:00,039 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-11-22 20:55:00,040 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 50 treesize of output 40 [2023-11-22 20:55:00,062 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-11-22 20:55:00,062 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 50 treesize of output 40 [2023-11-22 20:55:00,080 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-11-22 20:55:00,081 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 50 treesize of output 40 [2023-11-22 20:55:00,104 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-11-22 20:55:00,104 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 50 treesize of output 40 [2023-11-22 20:55:00,125 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-11-22 20:55:00,126 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 35 treesize of output 27 [2023-11-22 20:55:00,143 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-11-22 20:55:00,143 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 50 treesize of output 40 [2023-11-22 20:55:00,181 WARN L214 Elim1Store]: Array PQE input equivalent to false [2023-11-22 20:55:00,184 WARN L214 Elim1Store]: Array PQE input equivalent to false [2023-11-22 20:55:00,192 WARN L214 Elim1Store]: Array PQE input equivalent to false [2023-11-22 20:55:00,197 WARN L214 Elim1Store]: Array PQE input equivalent to false [2023-11-22 20:55:00,223 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-11-22 20:55:00,224 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 83 treesize of output 65 [2023-11-22 20:55:00,233 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-11-22 20:55:00,233 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 76 treesize of output 60 [2023-11-22 20:55:00,244 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-11-22 20:55:00,244 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 69 treesize of output 55 [2023-11-22 20:55:00,250 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-22 20:55:00,251 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-22 20:55:00,252 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-22 20:55:00,252 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 23 [2023-11-22 20:55:00,258 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-22 20:55:00,259 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-22 20:55:00,260 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-22 20:55:00,260 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 23 [2023-11-22 20:55:00,267 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 15 treesize of output 11 [2023-11-22 20:55:00,271 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 15 treesize of output 11 [2023-11-22 20:55:00,277 WARN L214 Elim1Store]: Array PQE input equivalent to false [2023-11-22 20:55:10,292 INFO L349 Elim1Store]: treesize reduction 489, result has 59.7 percent of original size [2023-11-22 20:55:10,292 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 17 select indices, 17 select index equivalence classes, 6 disjoint index pairs (out of 136 index pairs), introduced 18 new quantified variables, introduced 135 case distinctions, treesize of input 1029 treesize of output 1185 [2023-11-22 20:55:11,340 INFO L349 Elim1Store]: treesize reduction 89, result has 79.4 percent of original size [2023-11-22 20:55:11,340 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 12 select indices, 12 select index equivalence classes, 5 disjoint index pairs (out of 66 index pairs), introduced 12 new quantified variables, introduced 52 case distinctions, treesize of input 459 treesize of output 614 Killed by 15