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/Problem10_label01_true-unreach-call.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-dace188-m [2018-09-15 11:17:28,288 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-09-15 11:17:28,294 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-09-15 11:17:28,317 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-09-15 11:17:28,317 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-09-15 11:17:28,320 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-09-15 11:17:28,322 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-09-15 11:17:28,325 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-09-15 11:17:28,336 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-09-15 11:17:28,338 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-09-15 11:17:28,339 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-09-15 11:17:28,341 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-09-15 11:17:28,343 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-09-15 11:17:28,344 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-09-15 11:17:28,348 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-09-15 11:17:28,351 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-09-15 11:17:28,352 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-09-15 11:17:28,354 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-09-15 11:17:28,359 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-09-15 11:17:28,361 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-09-15 11:17:28,362 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-09-15 11:17:28,363 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-09-15 11:17:28,367 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-09-15 11:17:28,367 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-09-15 11:17:28,367 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-09-15 11:17:28,368 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-09-15 11:17:28,369 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-09-15 11:17:28,371 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-09-15 11:17:28,371 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-09-15 11:17:28,375 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-09-15 11:17:28,376 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-09-15 11:17:28,377 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-09-15 11:17:28,377 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-09-15 11:17:28,377 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-09-15 11:17:28,380 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-09-15 11:17:28,381 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-09-15 11:17:28,381 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 11:17:28,413 INFO L110 SettingsManager]: Loading preferences was successful [2018-09-15 11:17:28,413 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-09-15 11:17:28,414 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-09-15 11:17:28,415 INFO L133 SettingsManager]: * User list type=DISABLED [2018-09-15 11:17:28,415 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-09-15 11:17:28,415 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-09-15 11:17:28,416 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-09-15 11:17:28,416 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-09-15 11:17:28,416 INFO L133 SettingsManager]: * Log string format=TERM [2018-09-15 11:17:28,416 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-09-15 11:17:28,417 INFO L133 SettingsManager]: * Interval Domain=false [2018-09-15 11:17:28,418 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-09-15 11:17:28,418 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-09-15 11:17:28,418 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-09-15 11:17:28,419 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-09-15 11:17:28,419 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-09-15 11:17:28,419 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-09-15 11:17:28,419 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-09-15 11:17:28,419 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-09-15 11:17:28,420 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-09-15 11:17:28,420 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-09-15 11:17:28,420 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-09-15 11:17:28,420 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-09-15 11:17:28,422 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-09-15 11:17:28,422 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-09-15 11:17:28,422 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-09-15 11:17:28,422 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-09-15 11:17:28,422 INFO L133 SettingsManager]: * Trace refinement strategy=TOOTHLESS_TAIPAN [2018-09-15 11:17:28,423 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-09-15 11:17:28,423 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-09-15 11:17:28,423 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-09-15 11:17:28,423 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-09-15 11:17:28,424 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-09-15 11:17:28,496 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-09-15 11:17:28,514 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-09-15 11:17:28,520 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-09-15 11:17:28,521 INFO L271 PluginConnector]: Initializing CDTParser... [2018-09-15 11:17:28,522 INFO L276 PluginConnector]: CDTParser initialized [2018-09-15 11:17:28,523 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem10_label01_true-unreach-call.c [2018-09-15 11:17:28,908 INFO L221 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f434cd1d4/5ce505cdc1f340f5bf14ca7606377167/FLAGbab96b102 [2018-09-15 11:17:29,205 INFO L277 CDTParser]: Found 1 translation units. [2018-09-15 11:17:29,209 INFO L159 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem10_label01_true-unreach-call.c [2018-09-15 11:17:29,230 INFO L325 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f434cd1d4/5ce505cdc1f340f5bf14ca7606377167/FLAGbab96b102 [2018-09-15 11:17:29,255 INFO L333 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f434cd1d4/5ce505cdc1f340f5bf14ca7606377167 [2018-09-15 11:17:29,269 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-09-15 11:17:29,273 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-09-15 11:17:29,274 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-09-15 11:17:29,274 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-09-15 11:17:29,284 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-09-15 11:17:29,286 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.09 11:17:29" (1/1) ... [2018-09-15 11:17:29,289 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@746fe49d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 11:17:29, skipping insertion in model container [2018-09-15 11:17:29,290 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.09 11:17:29" (1/1) ... [2018-09-15 11:17:29,302 INFO L160 ieTranslatorObserver]: Starting translation in SV-COMP mode [2018-09-15 11:17:29,926 INFO L170 PostProcessor]: Settings: Checked method=main [2018-09-15 11:17:29,947 INFO L424 MainDispatcher]: Starting main dispatcher in SV-COMP mode [2018-09-15 11:17:30,098 INFO L170 PostProcessor]: Settings: Checked method=main [2018-09-15 11:17:30,166 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 11:17:30 WrapperNode [2018-09-15 11:17:30,167 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-09-15 11:17:30,168 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-09-15 11:17:30,168 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-09-15 11:17:30,168 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-09-15 11:17:30,179 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 11:17:30" (1/1) ... [2018-09-15 11:17:30,214 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 11:17:30" (1/1) ... [2018-09-15 11:17:30,303 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-09-15 11:17:30,304 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-09-15 11:17:30,304 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-09-15 11:17:30,305 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-09-15 11:17:30,474 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 11:17:30" (1/1) ... [2018-09-15 11:17:30,474 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 11:17:30" (1/1) ... [2018-09-15 11:17:30,484 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 11:17:30" (1/1) ... [2018-09-15 11:17:30,484 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 11:17:30" (1/1) ... [2018-09-15 11:17:30,529 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 11:17:30" (1/1) ... [2018-09-15 11:17:30,556 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 11:17:30" (1/1) ... [2018-09-15 11:17:30,577 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 11:17:30" (1/1) ... [2018-09-15 11:17:30,592 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-09-15 11:17:30,593 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-09-15 11:17:30,593 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-09-15 11:17:30,594 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-09-15 11:17:30,595 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 11:17:30" (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 11:17:30,679 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-09-15 11:17:30,679 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-09-15 11:17:30,679 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2018-09-15 11:17:30,680 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2018-09-15 11:17:30,680 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-09-15 11:17:30,681 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-09-15 11:17:30,681 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-09-15 11:17:30,681 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-09-15 11:17:34,020 INFO L353 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-09-15 11:17:34,021 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.09 11:17:34 BoogieIcfgContainer [2018-09-15 11:17:34,021 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-09-15 11:17:34,022 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-09-15 11:17:34,022 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-09-15 11:17:34,025 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-09-15 11:17:34,025 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.09 11:17:29" (1/3) ... [2018-09-15 11:17:34,026 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@21a6bc69 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.09 11:17:34, skipping insertion in model container [2018-09-15 11:17:34,026 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 11:17:30" (2/3) ... [2018-09-15 11:17:34,027 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@21a6bc69 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.09 11:17:34, skipping insertion in model container [2018-09-15 11:17:34,027 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.09 11:17:34" (3/3) ... [2018-09-15 11:17:34,029 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem10_label01_true-unreach-call.c [2018-09-15 11:17:34,038 INFO L137 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-09-15 11:17:34,046 INFO L149 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-09-15 11:17:34,101 INFO L130 ementStrategyFactory]: Using default assertion order modulation [2018-09-15 11:17:34,102 INFO L381 AbstractCegarLoop]: Interprodecural is true [2018-09-15 11:17:34,102 INFO L382 AbstractCegarLoop]: Hoare is true [2018-09-15 11:17:34,102 INFO L383 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-09-15 11:17:34,102 INFO L384 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-09-15 11:17:34,102 INFO L385 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-09-15 11:17:34,102 INFO L386 AbstractCegarLoop]: Difference is false [2018-09-15 11:17:34,103 INFO L387 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-09-15 11:17:34,103 INFO L392 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-09-15 11:17:34,131 INFO L276 IsEmpty]: Start isEmpty. Operand 216 states. [2018-09-15 11:17:34,144 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2018-09-15 11:17:34,145 INFO L368 BasicCegarLoop]: Found error trace [2018-09-15 11:17:34,146 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, 1, 1, 1, 1, 1] [2018-09-15 11:17:34,147 INFO L423 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-15 11:17:34,153 INFO L82 PathProgramCache]: Analyzing trace with hash -1691291748, now seen corresponding path program 1 times [2018-09-15 11:17:34,155 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-15 11:17:34,156 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 61 with the following transitions: [2018-09-15 11:17:34,159 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [9], [17], [25], [33], [41], [49], [57], [65], [73], [81], [89], [97], [105], [113], [121], [129], [137], [145], [153], [161], [169], [177], [185], [193], [201], [209], [217], [225], [233], [241], [249], [257], [265], [273], [281], [289], [297], [305], [313], [321], [329], [337], [345], [353], [361], [369], [377], [381], [383], [796], [800], [806], [810], [817], [818], [819], [821] [2018-09-15 11:17:34,226 INFO L148 AbstractInterpreter]: Using domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-09-15 11:17:34,227 INFO L101 FixpointEngine]: Starting fixpoint engine with domain CompoundDomain (maxUnwinding=3, maxParallelStates=2) [2018-09-15 11:17:36,067 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-15 11:17:36,070 INFO L272 AbstractInterpreter]: Visited 59 different actions 59 times. Never merged. Never widened. Never found a fixpoint. Largest state had 23 variables. [2018-09-15 11:17:36,093 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-15 11:17:36,971 INFO L232 lantSequenceWeakener]: Weakened 58 states. On average, predicates are now at 75.92% of their original sizes. [2018-09-15 11:17:36,971 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-15 11:17:37,286 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-15 11:17:37,288 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-15 11:17:37,288 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-09-15 11:17:37,289 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-15 11:17:37,295 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-09-15 11:17:37,302 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-09-15 11:17:37,302 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2018-09-15 11:17:37,305 INFO L87 Difference]: Start difference. First operand 216 states. Second operand 6 states. [2018-09-15 11:17:40,935 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-15 11:17:40,936 INFO L93 Difference]: Finished difference Result 576 states and 995 transitions. [2018-09-15 11:17:40,936 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-09-15 11:17:40,938 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 60 [2018-09-15 11:17:40,939 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-15 11:17:40,958 INFO L225 Difference]: With dead ends: 576 [2018-09-15 11:17:40,959 INFO L226 Difference]: Without dead ends: 358 [2018-09-15 11:17:40,966 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 59 GetRequests, 55 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 11:17:40,988 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 358 states. [2018-09-15 11:17:41,059 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 358 to 356. [2018-09-15 11:17:41,061 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 356 states. [2018-09-15 11:17:41,065 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 356 states to 356 states and 497 transitions. [2018-09-15 11:17:41,067 INFO L78 Accepts]: Start accepts. Automaton has 356 states and 497 transitions. Word has length 60 [2018-09-15 11:17:41,069 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-15 11:17:41,069 INFO L480 AbstractCegarLoop]: Abstraction has 356 states and 497 transitions. [2018-09-15 11:17:41,070 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-09-15 11:17:41,070 INFO L276 IsEmpty]: Start isEmpty. Operand 356 states and 497 transitions. [2018-09-15 11:17:41,079 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2018-09-15 11:17:41,081 INFO L368 BasicCegarLoop]: Found error trace [2018-09-15 11:17:41,081 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, 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] [2018-09-15 11:17:41,082 INFO L423 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-15 11:17:41,082 INFO L82 PathProgramCache]: Analyzing trace with hash 703281579, now seen corresponding path program 1 times [2018-09-15 11:17:41,083 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-15 11:17:41,083 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 132 with the following transitions: [2018-09-15 11:17:41,083 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [9], [17], [25], [33], [41], [49], [57], [65], [73], [81], [89], [97], [105], [113], [121], [129], [137], [145], [153], [161], [169], [177], [185], [193], [201], [209], [217], [225], [233], [241], [249], [257], [265], [273], [281], [289], [297], [305], [313], [321], [329], [337], [345], [353], [361], [369], [377], [381], [383], [386], [394], [402], [410], [418], [426], [434], [442], [450], [458], [466], [474], [482], [490], [495], [498], [792], [796], [800], [806], [810], [812], [817], [818], [819], [821], [822] [2018-09-15 11:17:41,097 INFO L148 AbstractInterpreter]: Using domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-09-15 11:17:41,097 INFO L101 FixpointEngine]: Starting fixpoint engine with domain CompoundDomain (maxUnwinding=3, maxParallelStates=2) [2018-09-15 11:17:43,316 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-09-15 11:17:49,550 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-15 11:17:49,550 INFO L272 AbstractInterpreter]: Visited 78 different actions 150 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 11:17:49,591 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-15 11:17:53,286 INFO L232 lantSequenceWeakener]: Weakened 129 states. On average, predicates are now at 74.27% of their original sizes. [2018-09-15 11:17:53,287 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-15 11:17:55,900 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-15 11:17:55,900 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-15 11:17:55,901 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2018-09-15 11:17:55,901 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-15 11:17:55,902 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2018-09-15 11:17:55,903 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2018-09-15 11:17:55,903 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2018-09-15 11:17:55,903 INFO L87 Difference]: Start difference. First operand 356 states and 497 transitions. Second operand 10 states. [2018-09-15 11:18:06,025 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-15 11:18:06,026 INFO L93 Difference]: Finished difference Result 711 states and 1126 transitions. [2018-09-15 11:18:06,030 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2018-09-15 11:18:06,031 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 131 [2018-09-15 11:18:06,032 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-15 11:18:06,037 INFO L225 Difference]: With dead ends: 711 [2018-09-15 11:18:06,037 INFO L226 Difference]: Without dead ends: 505 [2018-09-15 11:18:06,041 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 137 GetRequests, 74 SyntacticMatches, 48 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 321 ImplicationChecksByTransitivity, 2.8s TimeCoverageRelationStatistics Valid=68, Invalid=204, Unknown=0, NotChecked=0, Total=272 [2018-09-15 11:18:06,042 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 505 states. [2018-09-15 11:18:06,079 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 505 to 502. [2018-09-15 11:18:06,079 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 502 states. [2018-09-15 11:18:06,082 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 502 states to 502 states and 655 transitions. [2018-09-15 11:18:06,082 INFO L78 Accepts]: Start accepts. Automaton has 502 states and 655 transitions. Word has length 131 [2018-09-15 11:18:06,083 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-15 11:18:06,083 INFO L480 AbstractCegarLoop]: Abstraction has 502 states and 655 transitions. [2018-09-15 11:18:06,083 INFO L481 AbstractCegarLoop]: Interpolant automaton has 10 states. [2018-09-15 11:18:06,084 INFO L276 IsEmpty]: Start isEmpty. Operand 502 states and 655 transitions. [2018-09-15 11:18:06,088 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 141 [2018-09-15 11:18:06,088 INFO L368 BasicCegarLoop]: Found error trace [2018-09-15 11:18:06,089 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, 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] [2018-09-15 11:18:06,089 INFO L423 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-15 11:18:06,089 INFO L82 PathProgramCache]: Analyzing trace with hash 999905648, now seen corresponding path program 1 times [2018-09-15 11:18:06,089 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-15 11:18:06,090 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 141 with the following transitions: [2018-09-15 11:18:06,090 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [9], [17], [25], [33], [41], [49], [57], [65], [73], [81], [89], [97], [105], [113], [121], [129], [137], [145], [153], [161], [169], [177], [185], [193], [201], [209], [217], [225], [233], [241], [249], [257], [265], [273], [281], [289], [297], [305], [313], [321], [329], [337], [345], [353], [361], [369], [377], [381], [383], [386], [394], [402], [410], [418], [426], [434], [442], [450], [458], [466], [474], [482], [490], [495], [499], [503], [507], [511], [515], [519], [523], [527], [531], [534], [792], [796], [800], [806], [810], [812], [817], [818], [819], [821], [822] [2018-09-15 11:18:06,096 INFO L148 AbstractInterpreter]: Using domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-09-15 11:18:06,096 INFO L101 FixpointEngine]: Starting fixpoint engine with domain CompoundDomain (maxUnwinding=3, maxParallelStates=2) [2018-09-15 11:18:11,976 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-15 11:18:11,976 INFO L272 AbstractInterpreter]: Visited 87 different actions 167 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 11:18:11,985 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-15 11:18:14,248 INFO L232 lantSequenceWeakener]: Weakened 138 states. On average, predicates are now at 74.17% of their original sizes. [2018-09-15 11:18:14,249 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-15 11:18:15,439 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-15 11:18:15,439 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-15 11:18:15,440 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2018-09-15 11:18:15,440 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-15 11:18:15,441 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2018-09-15 11:18:15,441 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2018-09-15 11:18:15,444 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=80, Unknown=0, NotChecked=0, Total=110 [2018-09-15 11:18:15,445 INFO L87 Difference]: Start difference. First operand 502 states and 655 transitions. Second operand 11 states. [2018-09-15 11:18:23,175 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-15 11:18:23,176 INFO L93 Difference]: Finished difference Result 1002 states and 1569 transitions. [2018-09-15 11:18:23,180 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2018-09-15 11:18:23,180 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 140 [2018-09-15 11:18:23,181 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-15 11:18:23,186 INFO L225 Difference]: With dead ends: 1002 [2018-09-15 11:18:23,187 INFO L226 Difference]: Without dead ends: 796 [2018-09-15 11:18:23,189 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 146 GetRequests, 82 SyntacticMatches, 48 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 236 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=74, Invalid=232, Unknown=0, NotChecked=0, Total=306 [2018-09-15 11:18:23,190 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 796 states. [2018-09-15 11:18:23,238 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 796 to 793. [2018-09-15 11:18:23,238 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 793 states. [2018-09-15 11:18:23,242 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 793 states to 793 states and 962 transitions. [2018-09-15 11:18:23,243 INFO L78 Accepts]: Start accepts. Automaton has 793 states and 962 transitions. Word has length 140 [2018-09-15 11:18:23,244 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-15 11:18:23,244 INFO L480 AbstractCegarLoop]: Abstraction has 793 states and 962 transitions. [2018-09-15 11:18:23,244 INFO L481 AbstractCegarLoop]: Interpolant automaton has 11 states. [2018-09-15 11:18:23,244 INFO L276 IsEmpty]: Start isEmpty. Operand 793 states and 962 transitions. [2018-09-15 11:18:23,249 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 177 [2018-09-15 11:18:23,250 INFO L368 BasicCegarLoop]: Found error trace [2018-09-15 11:18:23,250 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, 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] [2018-09-15 11:18:23,250 INFO L423 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-15 11:18:23,251 INFO L82 PathProgramCache]: Analyzing trace with hash -1433611800, now seen corresponding path program 1 times [2018-09-15 11:18:23,251 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-15 11:18:23,251 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 177 with the following transitions: [2018-09-15 11:18:23,251 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [9], [17], [25], [33], [41], [49], [57], [65], [73], [81], [89], [97], [105], [113], [121], [129], [137], [145], [153], [161], [169], [177], [185], [193], [201], [209], [217], [225], [233], [241], [249], [257], [265], [273], [281], [289], [297], [305], [313], [321], [329], [337], [345], [353], [361], [369], [377], [381], [383], [386], [394], [402], [410], [418], [426], [434], [442], [450], [458], [466], [474], [482], [490], [495], [499], [503], [507], [511], [515], [519], [523], [527], [531], [535], [539], [543], [547], [551], [555], [559], [563], [567], [571], [575], [579], [583], [587], [591], [595], [599], [603], [607], [611], [615], [619], [623], [627], [631], [635], [639], [643], [647], [651], [655], [659], [663], [667], [671], [675], [678], [792], [796], [800], [806], [810], [812], [817], [818], [819], [821], [822] [2018-09-15 11:18:23,257 INFO L148 AbstractInterpreter]: Using domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-09-15 11:18:23,257 INFO L101 FixpointEngine]: Starting fixpoint engine with domain CompoundDomain (maxUnwinding=3, maxParallelStates=2) [2018-09-15 11:18:27,097 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-09-15 11:18:37,916 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-15 11:18:37,916 INFO L272 AbstractInterpreter]: Visited 123 different actions 240 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 11:18:37,956 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-15 11:18:41,637 INFO L232 lantSequenceWeakener]: Weakened 174 states. On average, predicates are now at 73.87% of their original sizes. [2018-09-15 11:18:41,638 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-15 11:18:43,614 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-15 11:18:43,615 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-15 11:18:43,615 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2018-09-15 11:18:43,615 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-15 11:18:43,616 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2018-09-15 11:18:43,616 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2018-09-15 11:18:43,616 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=98, Unknown=0, NotChecked=0, Total=132 [2018-09-15 11:18:43,617 INFO L87 Difference]: Start difference. First operand 793 states and 962 transitions. Second operand 12 states. [2018-09-15 11:18:50,885 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-15 11:18:50,885 INFO L93 Difference]: Finished difference Result 1150 states and 1593 transitions. [2018-09-15 11:18:50,886 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2018-09-15 11:18:50,886 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 176 [2018-09-15 11:18:50,887 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-15 11:18:50,891 INFO L225 Difference]: With dead ends: 1150 [2018-09-15 11:18:50,891 INFO L226 Difference]: Without dead ends: 944 [2018-09-15 11:18:50,893 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 184 GetRequests, 117 SyntacticMatches, 48 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 449 ImplicationChecksByTransitivity, 2.4s TimeCoverageRelationStatistics Valid=101, Invalid=319, Unknown=0, NotChecked=0, Total=420 [2018-09-15 11:18:50,894 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 944 states. [2018-09-15 11:18:50,944 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 944 to 939. [2018-09-15 11:18:50,944 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 939 states. [2018-09-15 11:18:50,949 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 939 states to 939 states and 1120 transitions. [2018-09-15 11:18:50,949 INFO L78 Accepts]: Start accepts. Automaton has 939 states and 1120 transitions. Word has length 176 [2018-09-15 11:18:50,950 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-15 11:18:50,950 INFO L480 AbstractCegarLoop]: Abstraction has 939 states and 1120 transitions. [2018-09-15 11:18:50,950 INFO L481 AbstractCegarLoop]: Interpolant automaton has 12 states. [2018-09-15 11:18:50,950 INFO L276 IsEmpty]: Start isEmpty. Operand 939 states and 1120 transitions. [2018-09-15 11:18:50,956 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 196 [2018-09-15 11:18:50,956 INFO L368 BasicCegarLoop]: Found error trace [2018-09-15 11:18:50,956 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, 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] [2018-09-15 11:18:50,957 INFO L423 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-15 11:18:50,957 INFO L82 PathProgramCache]: Analyzing trace with hash -627860181, now seen corresponding path program 1 times [2018-09-15 11:18:50,957 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-15 11:18:50,957 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 196 with the following transitions: [2018-09-15 11:18:50,958 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [9], [17], [25], [33], [41], [49], [57], [65], [73], [81], [89], [97], [105], [113], [121], [129], [137], [145], [153], [161], [169], [177], [185], [193], [201], [209], [217], [225], [233], [241], [249], [257], [265], [273], [281], [289], [297], [305], [313], [321], [329], [337], [345], [353], [361], [369], [377], [381], [383], [386], [394], [402], [410], [418], [426], [434], [442], [450], [458], [466], [474], [482], [490], [495], [499], [503], [507], [511], [515], [519], [523], [527], [531], [535], [539], [543], [547], [551], [555], [559], [563], [567], [571], [575], [579], [583], [587], [591], [595], [599], [603], [607], [611], [615], [619], [623], [627], [631], [635], [639], [643], [647], [651], [655], [659], [663], [667], [671], [675], [679], [683], [687], [691], [695], [699], [703], [707], [711], [715], [719], [723], [727], [731], [735], [739], [743], [747], [751], [754], [792], [796], [800], [806], [810], [812], [817], [818], [819], [821], [822] [2018-09-15 11:18:50,964 INFO L148 AbstractInterpreter]: Using domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-09-15 11:18:50,964 INFO L101 FixpointEngine]: Starting fixpoint engine with domain CompoundDomain (maxUnwinding=3, maxParallelStates=2) [2018-09-15 11:19:16,699 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-15 11:19:16,699 INFO L272 AbstractInterpreter]: Visited 142 different actions 549 times. Merged at 5 different actions 14 times. Never widened. Found 1 fixpoints after 1 different actions. Largest state had 24 variables. [2018-09-15 11:19:16,709 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-15 11:19:18,818 INFO L232 lantSequenceWeakener]: Weakened 193 states. On average, predicates are now at 73.76% of their original sizes. [2018-09-15 11:19:18,818 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-15 11:19:19,652 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-15 11:19:19,652 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-15 11:19:19,653 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2018-09-15 11:19:19,653 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-15 11:19:19,653 INFO L459 AbstractCegarLoop]: Interpolant automaton has 15 states [2018-09-15 11:19:19,654 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2018-09-15 11:19:19,654 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=55, Invalid=155, Unknown=0, NotChecked=0, Total=210 [2018-09-15 11:19:19,654 INFO L87 Difference]: Start difference. First operand 939 states and 1120 transitions. Second operand 15 states. [2018-09-15 11:19:28,894 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-15 11:19:28,895 INFO L93 Difference]: Finished difference Result 1301 states and 1760 transitions. [2018-09-15 11:19:28,896 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2018-09-15 11:19:28,896 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 195 [2018-09-15 11:19:28,897 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-15 11:19:28,902 INFO L225 Difference]: With dead ends: 1301 [2018-09-15 11:19:28,902 INFO L226 Difference]: Without dead ends: 1095 [2018-09-15 11:19:28,904 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 206 GetRequests, 181 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 121 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=165, Invalid=537, Unknown=0, NotChecked=0, Total=702 [2018-09-15 11:19:28,905 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1095 states. [2018-09-15 11:19:28,948 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1095 to 1089. [2018-09-15 11:19:28,948 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1089 states. [2018-09-15 11:19:28,952 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1089 states to 1089 states and 1286 transitions. [2018-09-15 11:19:28,952 INFO L78 Accepts]: Start accepts. Automaton has 1089 states and 1286 transitions. Word has length 195 [2018-09-15 11:19:28,953 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-15 11:19:28,953 INFO L480 AbstractCegarLoop]: Abstraction has 1089 states and 1286 transitions. [2018-09-15 11:19:28,953 INFO L481 AbstractCegarLoop]: Interpolant automaton has 15 states. [2018-09-15 11:19:28,953 INFO L276 IsEmpty]: Start isEmpty. Operand 1089 states and 1286 transitions. [2018-09-15 11:19:28,957 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 199 [2018-09-15 11:19:28,957 INFO L368 BasicCegarLoop]: Found error trace [2018-09-15 11:19:28,958 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, 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] [2018-09-15 11:19:28,958 INFO L423 AbstractCegarLoop]: === Iteration 6 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-15 11:19:28,958 INFO L82 PathProgramCache]: Analyzing trace with hash 1377457372, now seen corresponding path program 1 times [2018-09-15 11:19:28,958 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-15 11:19:28,959 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 199 with the following transitions: [2018-09-15 11:19:28,959 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [9], [17], [25], [33], [41], [49], [57], [65], [73], [81], [89], [97], [105], [113], [121], [129], [137], [145], [153], [161], [169], [177], [185], [193], [201], [209], [217], [225], [233], [241], [249], [257], [265], [273], [281], [289], [297], [305], [313], [321], [329], [337], [345], [353], [361], [369], [377], [381], [383], [386], [394], [402], [410], [418], [426], [434], [442], [450], [458], [466], [474], [482], [490], [495], [499], [503], [507], [511], [515], [519], [523], [527], [531], [535], [539], [543], [547], [551], [555], [559], [563], [567], [571], [575], [579], [583], [587], [591], [595], [599], [603], [607], [611], [615], [619], [623], [627], [631], [635], [639], [643], [647], [651], [655], [659], [663], [667], [671], [675], [679], [683], [687], [691], [695], [699], [703], [707], [711], [715], [719], [723], [727], [731], [735], [739], [743], [747], [751], [755], [759], [763], [766], [792], [796], [800], [806], [810], [812], [817], [818], [819], [821], [822] [2018-09-15 11:19:28,973 INFO L148 AbstractInterpreter]: Using domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-09-15 11:19:28,973 INFO L101 FixpointEngine]: Starting fixpoint engine with domain CompoundDomain (maxUnwinding=3, maxParallelStates=2) [2018-09-15 11:19:46,255 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-15 11:19:46,256 INFO L272 AbstractInterpreter]: Visited 145 different actions 284 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 11:19:46,294 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-15 11:19:50,298 INFO L232 lantSequenceWeakener]: Weakened 196 states. On average, predicates are now at 73.74% of their original sizes. [2018-09-15 11:19:50,298 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-15 11:19:52,256 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-15 11:19:52,256 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-15 11:19:52,257 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2018-09-15 11:19:52,257 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-15 11:19:52,257 INFO L459 AbstractCegarLoop]: Interpolant automaton has 14 states [2018-09-15 11:19:52,258 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2018-09-15 11:19:52,258 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=135, Unknown=0, NotChecked=0, Total=182 [2018-09-15 11:19:52,258 INFO L87 Difference]: Start difference. First operand 1089 states and 1286 transitions. Second operand 14 states. [2018-09-15 11:20:02,124 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-15 11:20:02,125 INFO L93 Difference]: Finished difference Result 1594 states and 2078 transitions. [2018-09-15 11:20:02,126 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2018-09-15 11:20:02,126 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 198 [2018-09-15 11:20:02,127 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-15 11:20:02,134 INFO L225 Difference]: With dead ends: 1594 [2018-09-15 11:20:02,134 INFO L226 Difference]: Without dead ends: 1238 [2018-09-15 11:20:02,136 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 209 GetRequests, 137 SyntacticMatches, 48 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 596 ImplicationChecksByTransitivity, 2.6s TimeCoverageRelationStatistics Valid=149, Invalid=501, Unknown=0, NotChecked=0, Total=650 [2018-09-15 11:20:02,137 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1238 states. [2018-09-15 11:20:02,188 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1238 to 1235. [2018-09-15 11:20:02,189 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1235 states. [2018-09-15 11:20:02,193 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1235 states to 1235 states and 1444 transitions. [2018-09-15 11:20:02,193 INFO L78 Accepts]: Start accepts. Automaton has 1235 states and 1444 transitions. Word has length 198 [2018-09-15 11:20:02,194 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-15 11:20:02,194 INFO L480 AbstractCegarLoop]: Abstraction has 1235 states and 1444 transitions. [2018-09-15 11:20:02,194 INFO L481 AbstractCegarLoop]: Interpolant automaton has 14 states. [2018-09-15 11:20:02,194 INFO L276 IsEmpty]: Start isEmpty. Operand 1235 states and 1444 transitions. [2018-09-15 11:20:02,198 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 208 [2018-09-15 11:20:02,199 INFO L368 BasicCegarLoop]: Found error trace [2018-09-15 11:20:02,199 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, 3, 3, 3, 3, 3, 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] [2018-09-15 11:20:02,199 INFO L423 AbstractCegarLoop]: === Iteration 7 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-15 11:20:02,199 INFO L82 PathProgramCache]: Analyzing trace with hash 1484130887, now seen corresponding path program 1 times [2018-09-15 11:20:02,200 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-15 11:20:02,200 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 208 with the following transitions: [2018-09-15 11:20:02,200 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [9], [17], [25], [33], [41], [49], [57], [65], [73], [81], [89], [97], [105], [113], [121], [129], [137], [145], [153], [161], [169], [177], [185], [193], [201], [209], [217], [225], [233], [241], [249], [257], [265], [273], [281], [289], [297], [305], [313], [321], [329], [337], [345], [353], [361], [369], [377], [381], [383], [386], [394], [402], [410], [418], [426], [434], [442], [450], [458], [466], [474], [482], [490], [495], [498], [499], [503], [507], [511], [515], [518], [792], [796], [800], [806], [810], [812], [817], [818], [819], [821], [822] [2018-09-15 11:20:02,203 INFO L148 AbstractInterpreter]: Using domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-09-15 11:20:02,203 INFO L101 FixpointEngine]: Starting fixpoint engine with domain CompoundDomain (maxUnwinding=3, maxParallelStates=2) [2018-09-15 11:20:03,555 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-09-15 11:20:15,458 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-15 11:20:15,458 INFO L272 AbstractInterpreter]: Visited 84 different actions 244 times. Merged at 7 different actions 14 times. Never widened. Found 3 fixpoints after 2 different actions. Largest state had 24 variables. [2018-09-15 11:20:15,467 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-15 11:20:19,201 INFO L232 lantSequenceWeakener]: Weakened 205 states. On average, predicates are now at 73.75% of their original sizes. [2018-09-15 11:20:19,201 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-15 11:20:20,777 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-15 11:20:20,778 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-15 11:20:20,778 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2018-09-15 11:20:20,778 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-15 11:20:20,779 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2018-09-15 11:20:20,779 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2018-09-15 11:20:20,780 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2018-09-15 11:20:20,780 INFO L87 Difference]: Start difference. First operand 1235 states and 1444 transitions. Second operand 10 states. [2018-09-15 11:20:30,313 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-15 11:20:30,313 INFO L93 Difference]: Finished difference Result 1749 states and 2252 transitions. [2018-09-15 11:20:30,315 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2018-09-15 11:20:30,315 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 207 [2018-09-15 11:20:30,316 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-15 11:20:30,323 INFO L225 Difference]: With dead ends: 1749 [2018-09-15 11:20:30,323 INFO L226 Difference]: Without dead ends: 1393 [2018-09-15 11:20:30,325 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 214 GetRequests, 150 SyntacticMatches, 48 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 329 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=74, Invalid=232, Unknown=0, NotChecked=0, Total=306 [2018-09-15 11:20:30,326 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1393 states. [2018-09-15 11:20:30,385 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1393 to 1383. [2018-09-15 11:20:30,385 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1383 states. [2018-09-15 11:20:30,390 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1383 states to 1383 states and 1610 transitions. [2018-09-15 11:20:30,390 INFO L78 Accepts]: Start accepts. Automaton has 1383 states and 1610 transitions. Word has length 207 [2018-09-15 11:20:30,391 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-15 11:20:30,391 INFO L480 AbstractCegarLoop]: Abstraction has 1383 states and 1610 transitions. [2018-09-15 11:20:30,391 INFO L481 AbstractCegarLoop]: Interpolant automaton has 10 states. [2018-09-15 11:20:30,391 INFO L276 IsEmpty]: Start isEmpty. Operand 1383 states and 1610 transitions. [2018-09-15 11:20:30,394 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 212 [2018-09-15 11:20:30,394 INFO L368 BasicCegarLoop]: Found error trace [2018-09-15 11:20:30,395 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, 3, 3, 3, 3, 3, 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] [2018-09-15 11:20:30,395 INFO L423 AbstractCegarLoop]: === Iteration 8 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-15 11:20:30,395 INFO L82 PathProgramCache]: Analyzing trace with hash -2142524033, now seen corresponding path program 1 times [2018-09-15 11:20:30,395 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-15 11:20:30,396 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 212 with the following transitions: [2018-09-15 11:20:30,396 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [9], [17], [25], [33], [41], [49], [57], [65], [73], [81], [89], [97], [105], [113], [121], [129], [137], [145], [153], [161], [169], [177], [185], [193], [201], [209], [217], [225], [233], [241], [249], [257], [265], [273], [281], [289], [297], [305], [313], [321], [329], [337], [345], [353], [361], [369], [377], [381], [383], [386], [394], [402], [410], [418], [426], [434], [442], [450], [458], [466], [474], [482], [490], [495], [498], [499], [503], [507], [511], [515], [519], [523], [527], [531], [534], [792], [796], [800], [806], [810], [812], [817], [818], [819], [821], [822] [2018-09-15 11:20:30,399 INFO L148 AbstractInterpreter]: Using domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-09-15 11:20:30,399 INFO L101 FixpointEngine]: Starting fixpoint engine with domain CompoundDomain (maxUnwinding=3, maxParallelStates=2) [2018-09-15 11:20:31,742 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-09-15 11:20:51,067 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-15 11:20:51,068 INFO L272 AbstractInterpreter]: Visited 88 different actions 510 times. Merged at 7 different actions 37 times. Widened at 1 different actions 1 times. Found 7 fixpoints after 2 different actions. Largest state had 24 variables. [2018-09-15 11:20:51,074 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-15 11:20:52,453 INFO L232 lantSequenceWeakener]: Weakened 209 states. On average, predicates are now at 73.7% of their original sizes. [2018-09-15 11:20:52,453 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-15 11:20:53,421 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-15 11:20:53,421 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-15 11:20:53,421 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2018-09-15 11:20:53,421 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-15 11:20:53,422 INFO L459 AbstractCegarLoop]: Interpolant automaton has 15 states [2018-09-15 11:20:53,422 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2018-09-15 11:20:53,422 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=152, Unknown=0, NotChecked=0, Total=210 [2018-09-15 11:20:53,422 INFO L87 Difference]: Start difference. First operand 1383 states and 1610 transitions. Second operand 15 states. [2018-09-15 11:21:05,719 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-15 11:21:05,719 INFO L93 Difference]: Finished difference Result 2585 states and 3385 transitions. [2018-09-15 11:21:05,722 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2018-09-15 11:21:05,722 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 211 [2018-09-15 11:21:05,723 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-15 11:21:05,732 INFO L225 Difference]: With dead ends: 2585 [2018-09-15 11:21:05,732 INFO L226 Difference]: Without dead ends: 2081 [2018-09-15 11:21:05,735 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 222 GetRequests, 197 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 125 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=177, Invalid=525, Unknown=0, NotChecked=0, Total=702 [2018-09-15 11:21:05,737 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2081 states. [2018-09-15 11:21:05,825 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2081 to 2059. [2018-09-15 11:21:05,825 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2059 states. [2018-09-15 11:21:05,832 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2059 states to 2059 states and 2428 transitions. [2018-09-15 11:21:05,832 INFO L78 Accepts]: Start accepts. Automaton has 2059 states and 2428 transitions. Word has length 211 [2018-09-15 11:21:05,833 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-15 11:21:05,833 INFO L480 AbstractCegarLoop]: Abstraction has 2059 states and 2428 transitions. [2018-09-15 11:21:05,833 INFO L481 AbstractCegarLoop]: Interpolant automaton has 15 states. [2018-09-15 11:21:05,833 INFO L276 IsEmpty]: Start isEmpty. Operand 2059 states and 2428 transitions. [2018-09-15 11:21:05,838 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 245 [2018-09-15 11:21:05,838 INFO L368 BasicCegarLoop]: Found error trace [2018-09-15 11:21:05,838 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, 3, 3, 3, 3, 3, 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] [2018-09-15 11:21:05,838 INFO L423 AbstractCegarLoop]: === Iteration 9 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-15 11:21:05,839 INFO L82 PathProgramCache]: Analyzing trace with hash 474917064, now seen corresponding path program 1 times [2018-09-15 11:21:05,839 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-15 11:21:05,839 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 245 with the following transitions: [2018-09-15 11:21:05,840 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [9], [17], [25], [33], [41], [49], [57], [65], [73], [81], [89], [97], [105], [113], [121], [129], [137], [145], [153], [161], [169], [177], [185], [193], [201], [209], [217], [225], [233], [241], [249], [257], [265], [273], [281], [289], [297], [305], [313], [321], [329], [337], [345], [353], [361], [369], [377], [381], [383], [386], [394], [402], [410], [418], [426], [434], [442], [450], [458], [466], [474], [482], [490], [495], [498], [499], [503], [507], [511], [515], [519], [523], [527], [531], [535], [539], [543], [547], [551], [555], [559], [563], [567], [571], [575], [579], [583], [587], [591], [595], [599], [603], [607], [611], [615], [619], [623], [627], [631], [635], [639], [643], [647], [651], [655], [659], [663], [666], [792], [796], [800], [806], [810], [812], [817], [818], [819], [821], [822] [2018-09-15 11:21:05,843 INFO L148 AbstractInterpreter]: Using domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-09-15 11:21:05,843 INFO L101 FixpointEngine]: Starting fixpoint engine with domain CompoundDomain (maxUnwinding=3, maxParallelStates=2) [2018-09-15 11:21:07,401 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-09-15 11:21:31,762 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-15 11:21:31,762 INFO L272 AbstractInterpreter]: Visited 121 different actions 589 times. Merged at 7 different actions 28 times. Never widened. Found 5 fixpoints after 2 different actions. Largest state had 24 variables. [2018-09-15 11:21:31,768 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-15 11:21:33,144 INFO L232 lantSequenceWeakener]: Weakened 242 states. On average, predicates are now at 73.6% of their original sizes. [2018-09-15 11:21:33,145 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-15 11:21:33,870 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-15 11:21:33,871 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-15 11:21:33,871 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2018-09-15 11:21:33,871 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-15 11:21:33,871 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2018-09-15 11:21:33,872 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2018-09-15 11:21:33,872 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=116, Unknown=0, NotChecked=0, Total=156 [2018-09-15 11:21:33,872 INFO L87 Difference]: Start difference. First operand 2059 states and 2428 transitions. Second operand 13 states. Received shutdown request... [2018-09-15 11:21:41,842 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2018-09-15 11:21:41,842 WARN L549 AbstractCegarLoop]: Verification canceled [2018-09-15 11:21:41,849 WARN L206 ceAbstractionStarter]: Timeout [2018-09-15 11:21:41,849 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 15.09 11:21:41 BoogieIcfgContainer [2018-09-15 11:21:41,849 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-09-15 11:21:41,850 INFO L168 Benchmark]: Toolchain (without parser) took 252579.98 ms. Allocated memory was 1.5 GB in the beginning and 4.2 GB in the end (delta: 2.7 GB). Free memory was 1.4 GB in the beginning and 2.0 GB in the end (delta: -587.2 MB). Peak memory consumption was 2.1 GB. Max. memory is 7.1 GB. [2018-09-15 11:21:41,852 INFO L168 Benchmark]: CDTParser took 0.22 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 11:21:41,852 INFO L168 Benchmark]: CACSL2BoogieTranslator took 893.23 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.4 GB in the end (delta: 42.3 MB). Peak memory consumption was 42.3 MB. Max. memory is 7.1 GB. [2018-09-15 11:21:41,853 INFO L168 Benchmark]: Boogie Procedure Inliner took 136.30 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: 10.6 MB). Peak memory consumption was 10.6 MB. Max. memory is 7.1 GB. [2018-09-15 11:21:41,854 INFO L168 Benchmark]: Boogie Preprocessor took 288.55 ms. Allocated memory was 1.5 GB in the beginning and 2.2 GB in the end (delta: 737.7 MB). Free memory was 1.3 GB in the beginning and 2.2 GB in the end (delta: -830.9 MB). Peak memory consumption was 29.1 MB. Max. memory is 7.1 GB. [2018-09-15 11:21:41,855 INFO L168 Benchmark]: RCFGBuilder took 3428.19 ms. Allocated memory is still 2.2 GB. Free memory was 2.2 GB in the beginning and 2.1 GB in the end (delta: 108.2 MB). Peak memory consumption was 108.2 MB. Max. memory is 7.1 GB. [2018-09-15 11:21:41,856 INFO L168 Benchmark]: TraceAbstraction took 247827.12 ms. Allocated memory was 2.2 GB in the beginning and 4.2 GB in the end (delta: 1.9 GB). Free memory was 2.1 GB in the beginning and 2.0 GB in the end (delta: 82.6 MB). Peak memory consumption was 2.0 GB. Max. memory is 7.1 GB. [2018-09-15 11:21:41,861 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22 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 893.23 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.4 GB in the end (delta: 42.3 MB). Peak memory consumption was 42.3 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 136.30 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: 10.6 MB). Peak memory consumption was 10.6 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 288.55 ms. Allocated memory was 1.5 GB in the beginning and 2.2 GB in the end (delta: 737.7 MB). Free memory was 1.3 GB in the beginning and 2.2 GB in the end (delta: -830.9 MB). Peak memory consumption was 29.1 MB. Max. memory is 7.1 GB. * RCFGBuilder took 3428.19 ms. Allocated memory is still 2.2 GB. Free memory was 2.2 GB in the beginning and 2.1 GB in the end (delta: 108.2 MB). Peak memory consumption was 108.2 MB. Max. memory is 7.1 GB. * TraceAbstraction took 247827.12 ms. Allocated memory was 2.2 GB in the beginning and 4.2 GB in the end (delta: 1.9 GB). Free memory was 2.1 GB in the beginning and 2.0 GB in the end (delta: 82.6 MB). Peak memory consumption was 2.0 GB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResultAtElement [Line: 163]: Timeout (TraceAbstraction) Unable to prove that call of __VERIFIER_error() unreachable (line 163). Cancelled while BasicCegarLoop was constructing difference of abstraction (2059states) and FLOYD_HOARE automaton (currently 18 states, 13 states before enhancement), while ReachableStatesComputation was computing reachable states (2234 states constructedinput type IntersectNwa). - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 216 locations, 1 error locations. TIMEOUT Result, 247.7s OverallTime, 9 OverallIterations, 3 TraceHistogramMax, 77.7s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 1801 SDtfs, 7370 SDslu, 2960 SDs, 0 SdLazy, 16071 SolverSat, 1671 SolverUnsat, 1 SolverUnknown, 0 SolverNotchecked, 68.0s Time, PredicateUnifierStatistics: 18 DeclaredPredicates, 1633 GetRequests, 1213 SyntacticMatches, 252 SemanticMatches, 168 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2393 ImplicationChecksByTransitivity, 15.8s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=2059occurred in iteration=8, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 134.0s AbstIntTime, 9 AbstIntIterations, 9 AbstIntStrong, 0.9943119780916186 AbsIntWeakeningRatio, 0.12363168061815841 AbsIntAvgWeakeningVarsNumRemoved, 304.3477141017386 AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.4s AutomataMinimizationTime, 8 MinimizatonAttempts, 54 StatesRemovedByMinimization, 8 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/Problem10_label01_true-unreach-call.c_svcomp-Reach-64bit-ToothlessTaipan_Default-OldIcfg.epf_AutomizerCInline.xml/Csv-Benchmark-0-2018-09-15_11-21-41-883.csv Written .csv to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/csv/Problem10_label01_true-unreach-call.c_svcomp-Reach-64bit-ToothlessTaipan_Default-OldIcfg.epf_AutomizerCInline.xml/Csv-TraceAbstractionBenchmarks-0-2018-09-15_11-21-41-883.csv Completed graceful shutdown