java -Xmx8000000000 -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data --generate-csv --csv-dir csv -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -s ../../../trunk/examples/settings/ai/taipanbench/svcomp-Reach-64bit-ToothlessTaipan_Default-OldIcfg.epf -i ../../../trunk/examples/svcomp/eca-rers2012/Problem16_label32_true-unreach-call.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-dace188-m [2018-09-15 12:26:45,297 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-09-15 12:26:45,300 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-09-15 12:26:45,314 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-09-15 12:26:45,314 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-09-15 12:26:45,316 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-09-15 12:26:45,317 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-09-15 12:26:45,319 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-09-15 12:26:45,321 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-09-15 12:26:45,321 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-09-15 12:26:45,322 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-09-15 12:26:45,323 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-09-15 12:26:45,324 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-09-15 12:26:45,325 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-09-15 12:26:45,326 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-09-15 12:26:45,327 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-09-15 12:26:45,328 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-09-15 12:26:45,330 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-09-15 12:26:45,335 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-09-15 12:26:45,340 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-09-15 12:26:45,341 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-09-15 12:26:45,346 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-09-15 12:26:45,351 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-09-15 12:26:45,351 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-09-15 12:26:45,352 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-09-15 12:26:45,353 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-09-15 12:26:45,354 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-09-15 12:26:45,355 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-09-15 12:26:45,355 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-09-15 12:26:45,358 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-09-15 12:26:45,359 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-09-15 12:26:45,359 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-09-15 12:26:45,359 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-09-15 12:26:45,360 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-09-15 12:26:45,362 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-09-15 12:26:45,363 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-09-15 12:26:45,364 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/ai/taipanbench/svcomp-Reach-64bit-ToothlessTaipan_Default-OldIcfg.epf [2018-09-15 12:26:45,393 INFO L110 SettingsManager]: Loading preferences was successful [2018-09-15 12:26:45,393 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-09-15 12:26:45,394 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-09-15 12:26:45,395 INFO L133 SettingsManager]: * User list type=DISABLED [2018-09-15 12:26:45,395 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-09-15 12:26:45,395 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-09-15 12:26:45,395 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-09-15 12:26:45,395 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-09-15 12:26:45,396 INFO L133 SettingsManager]: * Log string format=TERM [2018-09-15 12:26:45,396 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-09-15 12:26:45,396 INFO L133 SettingsManager]: * Interval Domain=false [2018-09-15 12:26:45,397 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-09-15 12:26:45,397 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-09-15 12:26:45,397 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-09-15 12:26:45,397 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-09-15 12:26:45,398 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-09-15 12:26:45,398 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-09-15 12:26:45,398 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-09-15 12:26:45,398 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-09-15 12:26:45,399 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-09-15 12:26:45,399 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-09-15 12:26:45,399 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-09-15 12:26:45,399 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-09-15 12:26:45,400 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-09-15 12:26:45,400 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-09-15 12:26:45,400 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-09-15 12:26:45,400 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-09-15 12:26:45,400 INFO L133 SettingsManager]: * Trace refinement strategy=TOOTHLESS_TAIPAN [2018-09-15 12:26:45,401 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-09-15 12:26:45,401 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-09-15 12:26:45,401 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-09-15 12:26:45,401 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-09-15 12:26:45,402 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-09-15 12:26:45,476 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-09-15 12:26:45,495 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-09-15 12:26:45,502 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-09-15 12:26:45,504 INFO L271 PluginConnector]: Initializing CDTParser... [2018-09-15 12:26:45,505 INFO L276 PluginConnector]: CDTParser initialized [2018-09-15 12:26:45,506 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem16_label32_true-unreach-call.c [2018-09-15 12:26:45,907 INFO L221 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/51cffc040/d5ea7c3917f64f398d3e496180f4c54b/FLAGc4c1c6f68 [2018-09-15 12:26:46,336 INFO L277 CDTParser]: Found 1 translation units. [2018-09-15 12:26:46,337 INFO L159 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem16_label32_true-unreach-call.c [2018-09-15 12:26:46,357 INFO L325 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/51cffc040/d5ea7c3917f64f398d3e496180f4c54b/FLAGc4c1c6f68 [2018-09-15 12:26:46,374 INFO L333 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/51cffc040/d5ea7c3917f64f398d3e496180f4c54b [2018-09-15 12:26:46,386 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-09-15 12:26:46,389 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-09-15 12:26:46,390 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-09-15 12:26:46,391 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-09-15 12:26:46,397 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-09-15 12:26:46,399 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.09 12:26:46" (1/1) ... [2018-09-15 12:26:46,402 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@24f42403 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 12:26:46, skipping insertion in model container [2018-09-15 12:26:46,402 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.09 12:26:46" (1/1) ... [2018-09-15 12:26:46,414 INFO L160 ieTranslatorObserver]: Starting translation in SV-COMP mode [2018-09-15 12:26:47,201 INFO L170 PostProcessor]: Settings: Checked method=main [2018-09-15 12:26:47,222 INFO L424 MainDispatcher]: Starting main dispatcher in SV-COMP mode [2018-09-15 12:26:47,550 INFO L170 PostProcessor]: Settings: Checked method=main [2018-09-15 12:26:47,647 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 12:26:47 WrapperNode [2018-09-15 12:26:47,647 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-09-15 12:26:47,648 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-09-15 12:26:47,648 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-09-15 12:26:47,649 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-09-15 12:26:47,659 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 12:26:47" (1/1) ... [2018-09-15 12:26:47,713 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 12:26:47" (1/1) ... [2018-09-15 12:26:47,826 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-09-15 12:26:47,827 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-09-15 12:26:47,827 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-09-15 12:26:47,827 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-09-15 12:26:48,144 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 12:26:47" (1/1) ... [2018-09-15 12:26:48,145 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 12:26:47" (1/1) ... [2018-09-15 12:26:48,159 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 12:26:47" (1/1) ... [2018-09-15 12:26:48,160 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 12:26:47" (1/1) ... [2018-09-15 12:26:48,242 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 12:26:47" (1/1) ... [2018-09-15 12:26:48,280 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 12:26:47" (1/1) ... [2018-09-15 12:26:48,307 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 12:26:47" (1/1) ... [2018-09-15 12:26:48,325 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-09-15 12:26:48,326 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-09-15 12:26:48,326 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-09-15 12:26:48,326 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-09-15 12:26:48,327 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 12:26:47" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-09-15 12:26:48,409 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-09-15 12:26:48,409 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-09-15 12:26:48,410 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output2 [2018-09-15 12:26:48,410 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output2 [2018-09-15 12:26:48,410 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2018-09-15 12:26:48,410 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2018-09-15 12:26:48,410 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-09-15 12:26:48,410 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-09-15 12:26:48,411 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-09-15 12:26:48,411 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-09-15 12:26:54,284 INFO L353 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-09-15 12:26:54,284 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.09 12:26:54 BoogieIcfgContainer [2018-09-15 12:26:54,285 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-09-15 12:26:54,286 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-09-15 12:26:54,288 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-09-15 12:26:54,291 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-09-15 12:26:54,291 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.09 12:26:46" (1/3) ... [2018-09-15 12:26:54,292 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@e7ed00c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.09 12:26:54, skipping insertion in model container [2018-09-15 12:26:54,292 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 12:26:47" (2/3) ... [2018-09-15 12:26:54,293 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@e7ed00c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.09 12:26:54, skipping insertion in model container [2018-09-15 12:26:54,293 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.09 12:26:54" (3/3) ... [2018-09-15 12:26:54,295 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem16_label32_true-unreach-call.c [2018-09-15 12:26:54,304 INFO L137 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-09-15 12:26:54,313 INFO L149 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-09-15 12:26:54,369 INFO L130 ementStrategyFactory]: Using default assertion order modulation [2018-09-15 12:26:54,369 INFO L381 AbstractCegarLoop]: Interprodecural is true [2018-09-15 12:26:54,370 INFO L382 AbstractCegarLoop]: Hoare is true [2018-09-15 12:26:54,370 INFO L383 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-09-15 12:26:54,370 INFO L384 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-09-15 12:26:54,370 INFO L385 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-09-15 12:26:54,370 INFO L386 AbstractCegarLoop]: Difference is false [2018-09-15 12:26:54,370 INFO L387 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-09-15 12:26:54,371 INFO L392 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-09-15 12:26:54,403 INFO L276 IsEmpty]: Start isEmpty. Operand 410 states. [2018-09-15 12:26:54,412 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2018-09-15 12:26:54,413 INFO L368 BasicCegarLoop]: Found error trace [2018-09-15 12:26:54,414 INFO L376 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-15 12:26:54,415 INFO L423 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-15 12:26:54,421 INFO L82 PathProgramCache]: Analyzing trace with hash 1067994659, now seen corresponding path program 1 times [2018-09-15 12:26:54,423 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-15 12:26:54,424 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 56 with the following transitions: [2018-09-15 12:26:54,428 INFO L202 CegarAbsIntRunner]: [0], [1], [180], [187], [195], [203], [211], [219], [227], [235], [243], [251], [259], [267], [275], [283], [291], [299], [307], [315], [323], [331], [339], [347], [355], [363], [371], [379], [387], [395], [403], [411], [419], [427], [435], [443], [451], [459], [467], [475], [483], [491], [499], [507], [515], [519], [521], [1556], [1560], [1566], [1570], [1579], [1580], [1581], [1583] [2018-09-15 12:26:54,486 INFO L148 AbstractInterpreter]: Using domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-09-15 12:26:54,487 INFO L101 FixpointEngine]: Starting fixpoint engine with domain CompoundDomain (maxUnwinding=3, maxParallelStates=2) [2018-09-15 12:26:55,976 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-15 12:26:55,978 INFO L272 AbstractInterpreter]: Visited 54 different actions 54 times. Never merged. Never widened. Never found a fixpoint. Largest state had 23 variables. [2018-09-15 12:26:55,998 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-15 12:26:56,671 INFO L232 lantSequenceWeakener]: Weakened 53 states. On average, predicates are now at 80.58% of their original sizes. [2018-09-15 12:26:56,672 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-15 12:26:56,980 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-15 12:26:56,982 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-15 12:26:56,982 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-09-15 12:26:56,982 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-15 12:26:56,988 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-09-15 12:26:56,995 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-09-15 12:26:56,996 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2018-09-15 12:26:56,998 INFO L87 Difference]: Start difference. First operand 410 states. Second operand 6 states. [2018-09-15 12:27:06,263 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-15 12:27:06,264 INFO L93 Difference]: Finished difference Result 1158 states and 2145 transitions. [2018-09-15 12:27:06,266 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-09-15 12:27:06,269 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 55 [2018-09-15 12:27:06,270 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-15 12:27:06,304 INFO L225 Difference]: With dead ends: 1158 [2018-09-15 12:27:06,305 INFO L226 Difference]: Without dead ends: 746 [2018-09-15 12:27:06,318 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 54 GetRequests, 50 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2018-09-15 12:27:06,341 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 746 states. [2018-09-15 12:27:06,420 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 746 to 744. [2018-09-15 12:27:06,422 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 744 states. [2018-09-15 12:27:06,427 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 744 states to 744 states and 1075 transitions. [2018-09-15 12:27:06,429 INFO L78 Accepts]: Start accepts. Automaton has 744 states and 1075 transitions. Word has length 55 [2018-09-15 12:27:06,430 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-15 12:27:06,430 INFO L480 AbstractCegarLoop]: Abstraction has 744 states and 1075 transitions. [2018-09-15 12:27:06,430 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-09-15 12:27:06,430 INFO L276 IsEmpty]: Start isEmpty. Operand 744 states and 1075 transitions. [2018-09-15 12:27:06,442 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 148 [2018-09-15 12:27:06,442 INFO L368 BasicCegarLoop]: Found error trace [2018-09-15 12:27:06,442 INFO L376 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-15 12:27:06,443 INFO L423 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-15 12:27:06,443 INFO L82 PathProgramCache]: Analyzing trace with hash 1264573184, now seen corresponding path program 1 times [2018-09-15 12:27:06,444 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-15 12:27:06,444 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 148 with the following transitions: [2018-09-15 12:27:06,445 INFO L202 CegarAbsIntRunner]: [0], [1], [180], [187], [195], [203], [211], [219], [227], [235], [243], [251], [259], [267], [275], [283], [291], [299], [307], [315], [323], [331], [339], [347], [355], [363], [371], [379], [387], [395], [403], [411], [419], [427], [435], [443], [451], [459], [467], [475], [483], [491], [499], [507], [515], [519], [521], [524], [532], [540], [548], [556], [564], [572], [580], [588], [596], [604], [612], [620], [628], [636], [644], [652], [660], [668], [673], [677], [681], [685], [689], [693], [697], [701], [705], [709], [713], [717], [721], [725], [729], [733], [737], [741], [745], [749], [753], [757], [760], [1552], [1556], [1560], [1566], [1570], [1572], [1579], [1580], [1581], [1583], [1584] [2018-09-15 12:27:06,457 INFO L148 AbstractInterpreter]: Using domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-09-15 12:27:06,459 INFO L101 FixpointEngine]: Starting fixpoint engine with domain CompoundDomain (maxUnwinding=3, maxParallelStates=2) [2018-09-15 12:27:09,524 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-09-15 12:27:16,086 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-15 12:27:16,087 INFO L272 AbstractInterpreter]: Visited 99 different actions 191 times. Merged at 4 different actions 4 times. Never widened. Found 1 fixpoints after 1 different actions. Largest state had 24 variables. [2018-09-15 12:27:16,128 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-15 12:27:19,692 INFO L232 lantSequenceWeakener]: Weakened 145 states. On average, predicates are now at 78.57% of their original sizes. [2018-09-15 12:27:19,693 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-15 12:27:21,906 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-15 12:27:21,907 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-15 12:27:21,907 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2018-09-15 12:27:21,907 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-15 12:27:21,910 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2018-09-15 12:27:21,910 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2018-09-15 12:27:21,910 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=80, Unknown=0, NotChecked=0, Total=110 [2018-09-15 12:27:21,911 INFO L87 Difference]: Start difference. First operand 744 states and 1075 transitions. Second operand 11 states. [2018-09-15 12:27:36,703 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-15 12:27:36,703 INFO L93 Difference]: Finished difference Result 1826 states and 3140 transitions. [2018-09-15 12:27:36,705 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2018-09-15 12:27:36,706 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 147 [2018-09-15 12:27:36,707 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-15 12:27:36,716 INFO L225 Difference]: With dead ends: 1826 [2018-09-15 12:27:36,716 INFO L226 Difference]: Without dead ends: 1426 [2018-09-15 12:27:36,720 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 153 GetRequests, 94 SyntacticMatches, 43 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 388 ImplicationChecksByTransitivity, 2.4s TimeCoverageRelationStatistics Valid=74, Invalid=232, Unknown=0, NotChecked=0, Total=306 [2018-09-15 12:27:36,722 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1426 states. [2018-09-15 12:27:36,781 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1426 to 1423. [2018-09-15 12:27:36,781 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1423 states. [2018-09-15 12:27:36,789 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1423 states to 1423 states and 1772 transitions. [2018-09-15 12:27:36,789 INFO L78 Accepts]: Start accepts. Automaton has 1423 states and 1772 transitions. Word has length 147 [2018-09-15 12:27:36,790 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-15 12:27:36,791 INFO L480 AbstractCegarLoop]: Abstraction has 1423 states and 1772 transitions. [2018-09-15 12:27:36,791 INFO L481 AbstractCegarLoop]: Interpolant automaton has 11 states. [2018-09-15 12:27:36,791 INFO L276 IsEmpty]: Start isEmpty. Operand 1423 states and 1772 transitions. [2018-09-15 12:27:36,796 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 184 [2018-09-15 12:27:36,796 INFO L368 BasicCegarLoop]: Found error trace [2018-09-15 12:27:36,796 INFO L376 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-15 12:27:36,797 INFO L423 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-15 12:27:36,797 INFO L82 PathProgramCache]: Analyzing trace with hash 2114872200, now seen corresponding path program 1 times [2018-09-15 12:27:36,797 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-15 12:27:36,797 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 184 with the following transitions: [2018-09-15 12:27:36,798 INFO L202 CegarAbsIntRunner]: [0], [1], [180], [187], [195], [203], [211], [219], [227], [235], [243], [251], [259], [267], [275], [283], [291], [299], [307], [315], [323], [331], [339], [347], [355], [363], [371], [379], [387], [395], [403], [411], [419], [427], [435], [443], [451], [459], [467], [475], [483], [491], [499], [507], [515], [519], [521], [524], [532], [540], [548], [556], [564], [572], [580], [588], [596], [604], [612], [620], [628], [636], [644], [652], [660], [668], [673], [677], [681], [685], [689], [693], [697], [701], [705], [709], [713], [717], [721], [725], [729], [733], [737], [741], [745], [749], [753], [757], [761], [765], [769], [773], [777], [781], [785], [789], [793], [797], [801], [805], [809], [813], [817], [821], [825], [829], [833], [837], [841], [845], [849], [853], [857], [861], [865], [869], [873], [877], [881], [885], [889], [893], [897], [901], [904], [1552], [1556], [1560], [1566], [1570], [1572], [1579], [1580], [1581], [1583], [1584] [2018-09-15 12:27:36,805 INFO L148 AbstractInterpreter]: Using domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-09-15 12:27:36,806 INFO L101 FixpointEngine]: Starting fixpoint engine with domain CompoundDomain (maxUnwinding=3, maxParallelStates=2) [2018-09-15 12:27:40,606 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-09-15 12:27:48,252 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-15 12:27:48,252 INFO L272 AbstractInterpreter]: Visited 135 different actions 263 times. Merged at 4 different actions 4 times. Never widened. Found 1 fixpoints after 1 different actions. Largest state had 24 variables. [2018-09-15 12:27:48,256 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-15 12:27:51,612 INFO L232 lantSequenceWeakener]: Weakened 181 states. On average, predicates are now at 78.31% of their original sizes. [2018-09-15 12:27:51,613 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-15 12:27:52,734 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-15 12:27:52,734 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-15 12:27:52,735 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2018-09-15 12:27:52,735 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-15 12:27:52,736 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2018-09-15 12:27:52,736 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2018-09-15 12:27:52,736 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=80, Unknown=0, NotChecked=0, Total=110 [2018-09-15 12:27:52,737 INFO L87 Difference]: Start difference. First operand 1423 states and 1772 transitions. Second operand 11 states. [2018-09-15 12:28:16,610 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-15 12:28:16,610 INFO L93 Difference]: Finished difference Result 2505 states and 3837 transitions. [2018-09-15 12:28:16,613 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2018-09-15 12:28:16,613 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 183 [2018-09-15 12:28:16,614 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-15 12:28:16,628 INFO L225 Difference]: With dead ends: 2505 [2018-09-15 12:28:16,628 INFO L226 Difference]: Without dead ends: 2105 [2018-09-15 12:28:16,631 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 189 GetRequests, 130 SyntacticMatches, 43 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 388 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=74, Invalid=232, Unknown=0, NotChecked=0, Total=306 [2018-09-15 12:28:16,634 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2105 states. [2018-09-15 12:28:16,707 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2105 to 2102. [2018-09-15 12:28:16,707 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2102 states. [2018-09-15 12:28:16,716 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2102 states to 2102 states and 2469 transitions. [2018-09-15 12:28:16,716 INFO L78 Accepts]: Start accepts. Automaton has 2102 states and 2469 transitions. Word has length 183 [2018-09-15 12:28:16,717 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-15 12:28:16,717 INFO L480 AbstractCegarLoop]: Abstraction has 2102 states and 2469 transitions. [2018-09-15 12:28:16,717 INFO L481 AbstractCegarLoop]: Interpolant automaton has 11 states. [2018-09-15 12:28:16,718 INFO L276 IsEmpty]: Start isEmpty. Operand 2102 states and 2469 transitions. [2018-09-15 12:28:16,729 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 209 [2018-09-15 12:28:16,729 INFO L368 BasicCegarLoop]: Found error trace [2018-09-15 12:28:16,731 INFO L376 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-15 12:28:16,732 INFO L423 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-15 12:28:16,732 INFO L82 PathProgramCache]: Analyzing trace with hash 1543242433, now seen corresponding path program 1 times [2018-09-15 12:28:16,733 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-15 12:28:16,733 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 209 with the following transitions: [2018-09-15 12:28:16,733 INFO L202 CegarAbsIntRunner]: [0], [1], [180], [187], [195], [203], [211], [219], [227], [235], [243], [251], [259], [267], [275], [283], [291], [299], [307], [315], [323], [331], [339], [347], [355], [363], [371], [379], [387], [395], [403], [411], [419], [427], [435], [443], [451], [459], [467], [475], [483], [491], [499], [507], [515], [519], [521], [524], [532], [540], [548], [556], [564], [572], [580], [588], [596], [604], [612], [620], [628], [636], [644], [652], [660], [668], [673], [677], [681], [685], [689], [693], [697], [701], [705], [709], [713], [717], [721], [725], [729], [733], [737], [741], [745], [749], [753], [757], [761], [765], [769], [773], [777], [781], [785], [789], [793], [797], [801], [805], [809], [813], [817], [821], [825], [829], [833], [837], [841], [845], [849], [853], [857], [861], [865], [869], [873], [877], [881], [885], [889], [893], [897], [901], [905], [909], [913], [917], [921], [925], [929], [933], [937], [941], [945], [949], [953], [957], [961], [965], [969], [973], [977], [981], [985], [989], [993], [997], [1001], [1004], [1552], [1556], [1560], [1566], [1570], [1572], [1579], [1580], [1581], [1583], [1584] [2018-09-15 12:28:16,746 INFO L148 AbstractInterpreter]: Using domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-09-15 12:28:16,747 INFO L101 FixpointEngine]: Starting fixpoint engine with domain CompoundDomain (maxUnwinding=3, maxParallelStates=2) [2018-09-15 12:28:20,494 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-09-15 12:28:29,346 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-15 12:28:29,347 INFO L272 AbstractInterpreter]: Visited 160 different actions 313 times. Merged at 4 different actions 4 times. Never widened. Found 1 fixpoints after 1 different actions. Largest state had 24 variables. [2018-09-15 12:28:29,351 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-15 12:28:32,212 INFO L232 lantSequenceWeakener]: Weakened 206 states. On average, predicates are now at 78.19% of their original sizes. [2018-09-15 12:28:32,212 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-15 12:28:33,452 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-15 12:28:33,453 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-15 12:28:33,453 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2018-09-15 12:28:33,453 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-15 12:28:33,455 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2018-09-15 12:28:33,455 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2018-09-15 12:28:33,455 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=96, Unknown=0, NotChecked=0, Total=132 [2018-09-15 12:28:33,456 INFO L87 Difference]: Start difference. First operand 2102 states and 2469 transitions. Second operand 12 states. [2018-09-15 12:28:47,754 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-15 12:28:47,754 INFO L93 Difference]: Finished difference Result 3184 states and 4534 transitions. [2018-09-15 12:28:47,755 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2018-09-15 12:28:47,755 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 208 [2018-09-15 12:28:47,756 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-15 12:28:47,769 INFO L225 Difference]: With dead ends: 3184 [2018-09-15 12:28:47,769 INFO L226 Difference]: Without dead ends: 2784 [2018-09-15 12:28:47,772 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 215 GetRequests, 154 SyntacticMatches, 43 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 492 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=91, Invalid=289, Unknown=0, NotChecked=0, Total=380 [2018-09-15 12:28:47,774 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2784 states. [2018-09-15 12:28:47,853 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2784 to 2781. [2018-09-15 12:28:47,853 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2781 states. [2018-09-15 12:28:47,861 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2781 states to 2781 states and 3166 transitions. [2018-09-15 12:28:47,861 INFO L78 Accepts]: Start accepts. Automaton has 2781 states and 3166 transitions. Word has length 208 [2018-09-15 12:28:47,862 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-15 12:28:47,862 INFO L480 AbstractCegarLoop]: Abstraction has 2781 states and 3166 transitions. [2018-09-15 12:28:47,862 INFO L481 AbstractCegarLoop]: Interpolant automaton has 12 states. [2018-09-15 12:28:47,862 INFO L276 IsEmpty]: Start isEmpty. Operand 2781 states and 3166 transitions. [2018-09-15 12:28:47,867 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 249 [2018-09-15 12:28:47,867 INFO L368 BasicCegarLoop]: Found error trace [2018-09-15 12:28:47,867 INFO L376 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-15 12:28:47,868 INFO L423 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-15 12:28:47,868 INFO L82 PathProgramCache]: Analyzing trace with hash -1576137071, now seen corresponding path program 1 times [2018-09-15 12:28:47,868 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-15 12:28:47,868 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 249 with the following transitions: [2018-09-15 12:28:47,869 INFO L202 CegarAbsIntRunner]: [0], [1], [180], [187], [195], [203], [211], [219], [227], [235], [243], [251], [259], [267], [275], [283], [291], [299], [307], [315], [323], [331], [339], [347], [355], [363], [371], [379], [387], [395], [403], [411], [419], [427], [435], [443], [451], [459], [467], [475], [483], [491], [499], [507], [515], [519], [521], [524], [532], [540], [548], [556], [564], [572], [580], [588], [596], [604], [612], [620], [628], [636], [644], [652], [660], [668], [673], [677], [681], [685], [689], [693], [697], [701], [705], [709], [713], [717], [721], [725], [729], [733], [737], [741], [745], [749], [753], [757], [761], [765], [769], [773], [777], [781], [785], [789], [793], [797], [801], [805], [809], [813], [817], [821], [825], [829], [833], [837], [841], [845], [849], [853], [857], [861], [865], [869], [873], [877], [881], [885], [889], [893], [897], [901], [905], [909], [913], [917], [921], [925], [929], [933], [937], [941], [945], [949], [953], [957], [961], [965], [969], [973], [977], [981], [985], [989], [993], [997], [1001], [1005], [1009], [1013], [1017], [1021], [1025], [1029], [1033], [1037], [1041], [1045], [1049], [1053], [1057], [1061], [1065], [1069], [1073], [1077], [1081], [1085], [1089], [1093], [1097], [1101], [1105], [1109], [1113], [1117], [1121], [1125], [1129], [1133], [1137], [1141], [1145], [1149], [1153], [1157], [1161], [1164], [1552], [1556], [1560], [1566], [1570], [1572], [1579], [1580], [1581], [1583], [1584] [2018-09-15 12:28:47,874 INFO L148 AbstractInterpreter]: Using domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-09-15 12:28:47,875 INFO L101 FixpointEngine]: Starting fixpoint engine with domain CompoundDomain (maxUnwinding=3, maxParallelStates=2) [2018-09-15 12:29:03,516 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-15 12:29:03,516 INFO L272 AbstractInterpreter]: Visited 200 different actions 393 times. Merged at 4 different actions 4 times. Never widened. Found 1 fixpoints after 1 different actions. Largest state had 24 variables. [2018-09-15 12:29:03,523 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-15 12:29:06,992 INFO L232 lantSequenceWeakener]: Weakened 246 states. On average, predicates are now at 78.04% of their original sizes. [2018-09-15 12:29:06,992 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-15 12:29:08,333 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-15 12:29:08,334 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-15 12:29:08,334 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2018-09-15 12:29:08,334 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-15 12:29:08,335 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2018-09-15 12:29:08,335 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2018-09-15 12:29:08,336 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=96, Unknown=0, NotChecked=0, Total=132 [2018-09-15 12:29:08,336 INFO L87 Difference]: Start difference. First operand 2781 states and 3166 transitions. Second operand 12 states. [2018-09-15 12:29:24,970 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-15 12:29:24,971 INFO L93 Difference]: Finished difference Result 3863 states and 5231 transitions. [2018-09-15 12:29:24,971 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2018-09-15 12:29:24,971 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 248 [2018-09-15 12:29:24,972 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-15 12:29:24,987 INFO L225 Difference]: With dead ends: 3863 [2018-09-15 12:29:24,987 INFO L226 Difference]: Without dead ends: 3463 [2018-09-15 12:29:24,991 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 255 GetRequests, 194 SyntacticMatches, 43 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 492 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=91, Invalid=289, Unknown=0, NotChecked=0, Total=380 [2018-09-15 12:29:24,994 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3463 states. [2018-09-15 12:29:25,098 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3463 to 3460. [2018-09-15 12:29:25,098 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3460 states. [2018-09-15 12:29:25,109 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3460 states to 3460 states and 3863 transitions. [2018-09-15 12:29:25,109 INFO L78 Accepts]: Start accepts. Automaton has 3460 states and 3863 transitions. Word has length 248 [2018-09-15 12:29:25,110 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-15 12:29:25,110 INFO L480 AbstractCegarLoop]: Abstraction has 3460 states and 3863 transitions. [2018-09-15 12:29:25,110 INFO L481 AbstractCegarLoop]: Interpolant automaton has 12 states. [2018-09-15 12:29:25,110 INFO L276 IsEmpty]: Start isEmpty. Operand 3460 states and 3863 transitions. [2018-09-15 12:29:25,116 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 276 [2018-09-15 12:29:25,116 INFO L368 BasicCegarLoop]: Found error trace [2018-09-15 12:29:25,117 INFO L376 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-15 12:29:25,117 INFO L423 AbstractCegarLoop]: === Iteration 6 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-15 12:29:25,117 INFO L82 PathProgramCache]: Analyzing trace with hash 551231589, now seen corresponding path program 1 times [2018-09-15 12:29:25,117 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-15 12:29:25,118 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 276 with the following transitions: [2018-09-15 12:29:25,118 INFO L202 CegarAbsIntRunner]: [0], [1], [180], [187], [195], [203], [211], [219], [227], [235], [243], [251], [259], [267], [275], [283], [291], [299], [307], [315], [323], [331], [339], [347], [355], [363], [371], [379], [387], [395], [403], [411], [419], [427], [435], [443], [451], [459], [467], [475], [483], [491], [499], [507], [515], [519], [521], [524], [532], [540], [548], [556], [564], [572], [580], [588], [596], [604], [612], [620], [628], [636], [644], [652], [660], [668], [673], [677], [681], [685], [689], [693], [697], [701], [705], [709], [713], [717], [721], [725], [729], [733], [737], [741], [745], [749], [753], [757], [760], [761], [765], [769], [773], [777], [781], [785], [789], [793], [797], [801], [805], [809], [813], [817], [821], [825], [829], [833], [837], [841], [845], [849], [853], [857], [861], [865], [869], [873], [877], [881], [885], [889], [893], [897], [901], [904], [1552], [1556], [1560], [1566], [1570], [1572], [1579], [1580], [1581], [1583], [1584] [2018-09-15 12:29:25,121 INFO L148 AbstractInterpreter]: Using domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-09-15 12:29:25,122 INFO L101 FixpointEngine]: Starting fixpoint engine with domain CompoundDomain (maxUnwinding=3, maxParallelStates=2) [2018-09-15 12:29:26,976 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-09-15 12:29:48,565 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-15 12:29:48,566 INFO L272 AbstractInterpreter]: Visited 136 different actions 665 times. Merged at 7 different actions 29 times. Never widened. Found 6 fixpoints after 1 different actions. Largest state had 24 variables. [2018-09-15 12:29:48,573 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-15 12:29:51,045 INFO L232 lantSequenceWeakener]: Weakened 273 states. On average, predicates are now at 78% of their original sizes. [2018-09-15 12:29:51,045 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-15 12:29:52,214 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-15 12:29:52,214 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-15 12:29:52,215 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2018-09-15 12:29:52,215 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-15 12:29:52,216 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2018-09-15 12:29:52,216 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2018-09-15 12:29:52,216 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=81, Unknown=0, NotChecked=0, Total=110 [2018-09-15 12:29:52,217 INFO L87 Difference]: Start difference. First operand 3460 states and 3863 transitions. Second operand 11 states. [2018-09-15 12:30:10,347 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-15 12:30:10,347 INFO L93 Difference]: Finished difference Result 4496 states and 5839 transitions. [2018-09-15 12:30:10,347 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2018-09-15 12:30:10,347 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 275 [2018-09-15 12:30:10,348 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-15 12:30:10,365 INFO L225 Difference]: With dead ends: 4496 [2018-09-15 12:30:10,365 INFO L226 Difference]: Without dead ends: 4096 [2018-09-15 12:30:10,369 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 284 GetRequests, 222 SyntacticMatches, 43 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 367 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=98, Invalid=322, Unknown=0, NotChecked=0, Total=420 [2018-09-15 12:30:10,375 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4096 states. [2018-09-15 12:30:10,496 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4096 to 3814. [2018-09-15 12:30:10,496 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3814 states. [2018-09-15 12:30:10,503 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3814 states to 3814 states and 4252 transitions. [2018-09-15 12:30:10,504 INFO L78 Accepts]: Start accepts. Automaton has 3814 states and 4252 transitions. Word has length 275 [2018-09-15 12:30:10,504 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-15 12:30:10,504 INFO L480 AbstractCegarLoop]: Abstraction has 3814 states and 4252 transitions. [2018-09-15 12:30:10,505 INFO L481 AbstractCegarLoop]: Interpolant automaton has 11 states. [2018-09-15 12:30:10,505 INFO L276 IsEmpty]: Start isEmpty. Operand 3814 states and 4252 transitions. [2018-09-15 12:30:10,511 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 296 [2018-09-15 12:30:10,511 INFO L368 BasicCegarLoop]: Found error trace [2018-09-15 12:30:10,512 INFO L376 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-15 12:30:10,512 INFO L423 AbstractCegarLoop]: === Iteration 7 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-15 12:30:10,512 INFO L82 PathProgramCache]: Analyzing trace with hash -1784638616, now seen corresponding path program 1 times [2018-09-15 12:30:10,513 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-15 12:30:10,513 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 296 with the following transitions: [2018-09-15 12:30:10,513 INFO L202 CegarAbsIntRunner]: [0], [1], [180], [187], [195], [203], [211], [219], [227], [235], [243], [251], [259], [267], [275], [283], [291], [299], [307], [315], [323], [331], [339], [347], [355], [363], [371], [379], [387], [395], [403], [411], [419], [427], [435], [443], [451], [459], [467], [475], [483], [491], [499], [507], [515], [519], [521], [524], [532], [540], [548], [556], [564], [572], [580], [588], [596], [604], [612], [620], [628], [636], [644], [652], [660], [668], [673], [677], [681], [685], [689], [693], [697], [701], [705], [709], [713], [717], [721], [725], [729], [733], [737], [741], [745], [749], [753], [757], [761], [765], [769], [773], [777], [781], [785], [789], [793], [797], [801], [805], [809], [813], [817], [821], [825], [829], [833], [837], [841], [845], [849], [853], [857], [861], [865], [869], [873], [877], [881], [885], [889], [893], [897], [901], [905], [909], [913], [917], [921], [925], [929], [933], [937], [941], [945], [949], [953], [957], [961], [965], [969], [973], [977], [981], [985], [989], [993], [997], [1001], [1005], [1009], [1013], [1017], [1021], [1025], [1029], [1033], [1037], [1041], [1045], [1049], [1053], [1057], [1061], [1065], [1069], [1073], [1077], [1081], [1085], [1089], [1093], [1097], [1101], [1105], [1109], [1113], [1117], [1121], [1125], [1129], [1133], [1137], [1141], [1145], [1149], [1153], [1157], [1161], [1165], [1169], [1173], [1177], [1181], [1185], [1189], [1193], [1197], [1201], [1205], [1209], [1213], [1217], [1221], [1225], [1229], [1233], [1237], [1241], [1245], [1249], [1253], [1257], [1261], [1265], [1269], [1273], [1277], [1281], [1285], [1289], [1293], [1297], [1301], [1305], [1309], [1313], [1317], [1321], [1325], [1329], [1333], [1337], [1341], [1345], [1349], [1352], [1552], [1556], [1560], [1566], [1570], [1572], [1579], [1580], [1581], [1583], [1584] [2018-09-15 12:30:10,518 INFO L148 AbstractInterpreter]: Using domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-09-15 12:30:10,519 INFO L101 FixpointEngine]: Starting fixpoint engine with domain CompoundDomain (maxUnwinding=3, maxParallelStates=2) [2018-09-15 12:30:40,500 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-15 12:30:40,501 INFO L272 AbstractInterpreter]: Visited 247 different actions 488 times. Merged at 5 different actions 5 times. Never widened. Found 1 fixpoints after 1 different actions. Largest state had 24 variables. [2018-09-15 12:30:40,521 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-15 12:30:46,291 INFO L232 lantSequenceWeakener]: Weakened 293 states. On average, predicates are now at 77.91% of their original sizes. [2018-09-15 12:30:46,292 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-15 12:30:47,545 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-15 12:30:47,545 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-15 12:30:47,546 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2018-09-15 12:30:47,546 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-15 12:30:47,547 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2018-09-15 12:30:47,547 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2018-09-15 12:30:47,548 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=116, Unknown=0, NotChecked=0, Total=156 [2018-09-15 12:30:47,548 INFO L87 Difference]: Start difference. First operand 3814 states and 4252 transitions. Second operand 13 states. Received shutdown request... [2018-09-15 12:30:59,638 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2018-09-15 12:30:59,638 WARN L549 AbstractCegarLoop]: Verification canceled [2018-09-15 12:30:59,644 WARN L206 ceAbstractionStarter]: Timeout [2018-09-15 12:30:59,644 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 15.09 12:30:59 BoogieIcfgContainer [2018-09-15 12:30:59,645 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-09-15 12:30:59,646 INFO L168 Benchmark]: Toolchain (without parser) took 253259.27 ms. Allocated memory was 1.5 GB in the beginning and 4.1 GB in the end (delta: 2.6 GB). Free memory was 1.4 GB in the beginning and 1.4 GB in the end (delta: 9.8 MB). Peak memory consumption was 2.6 GB. Max. memory is 7.1 GB. [2018-09-15 12:30:59,648 INFO L168 Benchmark]: CDTParser took 0.24 ms. Allocated memory is still 1.5 GB. Free memory is still 1.4 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-09-15 12:30:59,648 INFO L168 Benchmark]: CACSL2BoogieTranslator took 1257.22 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.3 GB in the end (delta: 95.1 MB). Peak memory consumption was 95.1 MB. Max. memory is 7.1 GB. [2018-09-15 12:30:59,649 INFO L168 Benchmark]: Boogie Procedure Inliner took 178.28 ms. Allocated memory is still 1.5 GB. Free memory was 1.3 GB in the beginning and 1.2 GB in the end (delta: 31.7 MB). Peak memory consumption was 31.7 MB. Max. memory is 7.1 GB. [2018-09-15 12:30:59,650 INFO L168 Benchmark]: Boogie Preprocessor took 498.36 ms. Allocated memory was 1.5 GB in the beginning and 2.2 GB in the end (delta: 772.8 MB). Free memory was 1.2 GB in the beginning and 2.2 GB in the end (delta: -926.1 MB). Peak memory consumption was 61.1 MB. Max. memory is 7.1 GB. [2018-09-15 12:30:59,651 INFO L168 Benchmark]: RCFGBuilder took 5959.35 ms. Allocated memory is still 2.2 GB. Free memory was 2.2 GB in the beginning and 1.9 GB in the end (delta: 252.4 MB). Peak memory consumption was 252.4 MB. Max. memory is 7.1 GB. [2018-09-15 12:30:59,652 INFO L168 Benchmark]: TraceAbstraction took 245358.83 ms. Allocated memory was 2.2 GB in the beginning and 4.1 GB in the end (delta: 1.9 GB). Free memory was 1.9 GB in the beginning and 1.4 GB in the end (delta: 556.6 MB). Peak memory consumption was 2.4 GB. Max. memory is 7.1 GB. [2018-09-15 12:30:59,657 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.24 ms. Allocated memory is still 1.5 GB. Free memory is still 1.4 GB. There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 1257.22 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.3 GB in the end (delta: 95.1 MB). Peak memory consumption was 95.1 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 178.28 ms. Allocated memory is still 1.5 GB. Free memory was 1.3 GB in the beginning and 1.2 GB in the end (delta: 31.7 MB). Peak memory consumption was 31.7 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 498.36 ms. Allocated memory was 1.5 GB in the beginning and 2.2 GB in the end (delta: 772.8 MB). Free memory was 1.2 GB in the beginning and 2.2 GB in the end (delta: -926.1 MB). Peak memory consumption was 61.1 MB. Max. memory is 7.1 GB. * RCFGBuilder took 5959.35 ms. Allocated memory is still 2.2 GB. Free memory was 2.2 GB in the beginning and 1.9 GB in the end (delta: 252.4 MB). Peak memory consumption was 252.4 MB. Max. memory is 7.1 GB. * TraceAbstraction took 245358.83 ms. Allocated memory was 2.2 GB in the beginning and 4.1 GB in the end (delta: 1.9 GB). Free memory was 1.9 GB in the beginning and 1.4 GB in the end (delta: 556.6 MB). Peak memory consumption was 2.4 GB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResultAtElement [Line: 151]: Timeout (TraceAbstraction) Unable to prove that call of __VERIFIER_error() unreachable (line 151). Cancelled while BasicCegarLoop was constructing difference of abstraction (3814states) and FLOYD_HOARE automaton (currently 16 states, 13 states before enhancement), while ReachableStatesComputation was computing reachable states (3372 states constructedinput type IntersectNwa). - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 410 locations, 1 error locations. TIMEOUT Result, 245.2s OverallTime, 7 OverallIterations, 3 TraceHistogramMax, 109.2s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 2684 SDtfs, 11276 SDslu, 2020 SDs, 0 SdLazy, 24305 SolverSat, 3750 SolverUnsat, 1 SolverUnknown, 0 SolverNotchecked, 98.9s Time, PredicateUnifierStatistics: 14 DeclaredPredicates, 1454 GetRequests, 1084 SyntacticMatches, 258 SemanticMatches, 112 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2601 ImplicationChecksByTransitivity, 10.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=3814occurred in iteration=6, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 104.4s AbstIntTime, 7 AbstIntIterations, 7 AbstIntStrong, 0.9953883173991867 AbsIntWeakeningRatio, 0.09971509971509972 AbsIntAvgWeakeningVarsNumRemoved, 113.0505698005698 AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.5s AutomataMinimizationTime, 6 MinimizatonAttempts, 296 StatesRemovedByMinimization, 6 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: No data available, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Written .csv to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/csv/Problem16_label32_true-unreach-call.c_svcomp-Reach-64bit-ToothlessTaipan_Default-OldIcfg.epf_AutomizerCInline.xml/Csv-Benchmark-0-2018-09-15_12-30-59-671.csv Written .csv to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/csv/Problem16_label32_true-unreach-call.c_svcomp-Reach-64bit-ToothlessTaipan_Default-OldIcfg.epf_AutomizerCInline.xml/Csv-TraceAbstractionBenchmarks-0-2018-09-15_12-30-59-671.csv Completed graceful shutdown