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/Problem14_label49_true-unreach-call_false-termination.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-69f5bdd-m [2018-09-19 04:10:22,183 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-09-19 04:10:22,185 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-09-19 04:10:22,205 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-09-19 04:10:22,206 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-09-19 04:10:22,207 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-09-19 04:10:22,211 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-09-19 04:10:22,213 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-09-19 04:10:22,215 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-09-19 04:10:22,217 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-09-19 04:10:22,218 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-09-19 04:10:22,218 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-09-19 04:10:22,219 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-09-19 04:10:22,220 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-09-19 04:10:22,223 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-09-19 04:10:22,224 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-09-19 04:10:22,226 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-09-19 04:10:22,229 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-09-19 04:10:22,235 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-09-19 04:10:22,240 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-09-19 04:10:22,245 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-09-19 04:10:22,246 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-09-19 04:10:22,252 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-09-19 04:10:22,252 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-09-19 04:10:22,252 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-09-19 04:10:22,254 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-09-19 04:10:22,256 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-09-19 04:10:22,256 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-09-19 04:10:22,257 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-09-19 04:10:22,258 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-09-19 04:10:22,258 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-09-19 04:10:22,263 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... 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[2018-09-19 04:10:22,268 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 [2018-09-19 04:10:22,294 INFO L110 SettingsManager]: Loading preferences was successful [2018-09-19 04:10:22,294 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-09-19 04:10:22,295 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-09-19 04:10:22,295 INFO L133 SettingsManager]: * User list type=DISABLED [2018-09-19 04:10:22,295 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-09-19 04:10:22,296 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-09-19 04:10:22,296 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-09-19 04:10:22,296 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-09-19 04:10:22,296 INFO L133 SettingsManager]: * Log string format=TERM [2018-09-19 04:10:22,296 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-09-19 04:10:22,297 INFO L133 SettingsManager]: * Parallel states before merging=1 [2018-09-19 04:10:22,297 INFO L133 SettingsManager]: * Interval Domain=false [2018-09-19 04:10:22,297 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-09-19 04:10:22,298 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-09-19 04:10:22,298 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-09-19 04:10:22,298 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-09-19 04:10:22,298 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-09-19 04:10:22,298 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-09-19 04:10:22,299 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-09-19 04:10:22,299 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-09-19 04:10:22,299 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-09-19 04:10:22,299 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-09-19 04:10:22,299 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-09-19 04:10:22,300 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-09-19 04:10:22,300 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-09-19 04:10:22,300 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-09-19 04:10:22,300 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-09-19 04:10:22,300 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-09-19 04:10:22,301 INFO L133 SettingsManager]: * Trace refinement strategy=TOOTHLESS_TAIPAN [2018-09-19 04:10:22,301 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-09-19 04:10:22,301 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-09-19 04:10:22,301 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-09-19 04:10:22,301 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-09-19 04:10:22,302 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-09-19 04:10:22,346 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-09-19 04:10:22,359 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-09-19 04:10:22,364 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-09-19 04:10:22,366 INFO L271 PluginConnector]: Initializing CDTParser... [2018-09-19 04:10:22,366 INFO L276 PluginConnector]: CDTParser initialized [2018-09-19 04:10:22,367 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem14_label49_true-unreach-call_false-termination.c [2018-09-19 04:10:22,709 INFO L221 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c25798027/beb26e96723344fe9f3d020f52075a5d/FLAG5d9b09f5b [2018-09-19 04:10:23,023 INFO L277 CDTParser]: Found 1 translation units. [2018-09-19 04:10:23,024 INFO L159 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem14_label49_true-unreach-call_false-termination.c [2018-09-19 04:10:23,047 INFO L325 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c25798027/beb26e96723344fe9f3d020f52075a5d/FLAG5d9b09f5b [2018-09-19 04:10:23,063 INFO L333 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c25798027/beb26e96723344fe9f3d020f52075a5d [2018-09-19 04:10:23,076 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-09-19 04:10:23,079 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-09-19 04:10:23,080 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-09-19 04:10:23,080 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-09-19 04:10:23,087 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-09-19 04:10:23,088 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.09 04:10:23" (1/1) ... [2018-09-19 04:10:23,091 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6efa186f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 04:10:23, skipping insertion in model container [2018-09-19 04:10:23,092 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.09 04:10:23" (1/1) ... [2018-09-19 04:10:23,104 INFO L160 ieTranslatorObserver]: Starting translation in SV-COMP mode [2018-09-19 04:10:23,718 INFO L170 PostProcessor]: Settings: Checked method=main [2018-09-19 04:10:23,737 INFO L424 MainDispatcher]: Starting main dispatcher in SV-COMP mode [2018-09-19 04:10:23,909 INFO L170 PostProcessor]: Settings: Checked method=main [2018-09-19 04:10:23,978 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 04:10:23 WrapperNode [2018-09-19 04:10:23,978 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-09-19 04:10:23,979 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-09-19 04:10:23,979 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-09-19 04:10:23,980 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-09-19 04:10:23,990 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 04:10:23" (1/1) ... [2018-09-19 04:10:24,031 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 04:10:23" (1/1) ... [2018-09-19 04:10:24,140 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-09-19 04:10:24,141 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-09-19 04:10:24,141 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-09-19 04:10:24,141 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-09-19 04:10:24,333 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 04:10:23" (1/1) ... [2018-09-19 04:10:24,333 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 04:10:23" (1/1) ... [2018-09-19 04:10:24,341 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 04:10:23" (1/1) ... [2018-09-19 04:10:24,342 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 04:10:23" (1/1) ... [2018-09-19 04:10:24,396 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 04:10:23" (1/1) ... [2018-09-19 04:10:24,422 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 04:10:23" (1/1) ... [2018-09-19 04:10:24,441 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 04:10:23" (1/1) ... [2018-09-19 04:10:24,456 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-09-19 04:10:24,457 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-09-19 04:10:24,457 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-09-19 04:10:24,457 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-09-19 04:10:24,458 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 04:10:23" (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 [2018-09-19 04:10:24,539 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-09-19 04:10:24,539 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-09-19 04:10:24,539 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2018-09-19 04:10:24,540 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2018-09-19 04:10:24,540 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-09-19 04:10:24,541 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-09-19 04:10:24,541 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-09-19 04:10:24,541 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-09-19 04:10:28,264 INFO L356 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-09-19 04:10:28,265 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.09 04:10:28 BoogieIcfgContainer [2018-09-19 04:10:28,265 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-09-19 04:10:28,266 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-09-19 04:10:28,266 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-09-19 04:10:28,270 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-09-19 04:10:28,270 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.09 04:10:23" (1/3) ... [2018-09-19 04:10:28,271 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@783e9e1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.09 04:10:28, skipping insertion in model container [2018-09-19 04:10:28,271 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 04:10:23" (2/3) ... [2018-09-19 04:10:28,272 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@783e9e1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.09 04:10:28, skipping insertion in model container [2018-09-19 04:10:28,272 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.09 04:10:28" (3/3) ... [2018-09-19 04:10:28,274 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem14_label49_true-unreach-call_false-termination.c [2018-09-19 04:10:28,285 INFO L137 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-09-19 04:10:28,297 INFO L149 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-09-19 04:10:28,355 INFO L130 ementStrategyFactory]: Using default assertion order modulation [2018-09-19 04:10:28,356 INFO L381 AbstractCegarLoop]: Interprodecural is true [2018-09-19 04:10:28,356 INFO L382 AbstractCegarLoop]: Hoare is true [2018-09-19 04:10:28,356 INFO L383 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-09-19 04:10:28,357 INFO L384 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-09-19 04:10:28,357 INFO L385 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-09-19 04:10:28,357 INFO L386 AbstractCegarLoop]: Difference is false [2018-09-19 04:10:28,357 INFO L387 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-09-19 04:10:28,357 INFO L392 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-09-19 04:10:28,400 INFO L276 IsEmpty]: Start isEmpty. Operand 255 states. [2018-09-19 04:10:28,410 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2018-09-19 04:10:28,411 INFO L368 BasicCegarLoop]: Found error trace [2018-09-19 04:10:28,413 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, 1, 1, 1, 1, 1, 1] [2018-09-19 04:10:28,414 INFO L423 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-19 04:10:28,420 INFO L82 PathProgramCache]: Analyzing trace with hash -825405036, now seen corresponding path program 1 times [2018-09-19 04:10:28,423 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-19 04:10:28,425 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 67 with the following transitions: [2018-09-19 04:10:28,428 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], [385], [393], [401], [409], [417], [425], [429], [431], [952], [956], [962], [966], [973], [974], [975], [977] [2018-09-19 04:10:28,505 INFO L148 AbstractInterpreter]: Using domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-09-19 04:10:28,506 INFO L101 FixpointEngine]: Starting fixpoint engine with domain CompoundDomain (maxUnwinding=3, maxParallelStates=1) [2018-09-19 04:10:30,075 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-19 04:10:30,077 INFO L272 AbstractInterpreter]: Visited 65 different actions 65 times. Never merged. Never widened. Never found a fixpoint. Largest state had 23 variables. [2018-09-19 04:10:30,091 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-19 04:10:30,917 INFO L232 lantSequenceWeakener]: Weakened 64 states. On average, predicates are now at 80.79% of their original sizes. [2018-09-19 04:10:30,917 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-19 04:10:31,204 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-19 04:10:31,206 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-19 04:10:31,207 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-09-19 04:10:31,207 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-19 04:10:31,215 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-09-19 04:10:31,222 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-09-19 04:10:31,223 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2018-09-19 04:10:31,225 INFO L87 Difference]: Start difference. First operand 255 states. Second operand 6 states. [2018-09-19 04:10:36,413 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-19 04:10:36,413 INFO L93 Difference]: Finished difference Result 693 states and 1229 transitions. [2018-09-19 04:10:36,418 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-09-19 04:10:36,420 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 66 [2018-09-19 04:10:36,421 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-19 04:10:36,438 INFO L225 Difference]: With dead ends: 693 [2018-09-19 04:10:36,439 INFO L226 Difference]: Without dead ends: 436 [2018-09-19 04:10:36,449 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 65 GetRequests, 61 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2018-09-19 04:10:36,472 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 436 states. [2018-09-19 04:10:36,542 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 436 to 434. [2018-09-19 04:10:36,543 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 434 states. [2018-09-19 04:10:36,551 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 434 states to 434 states and 615 transitions. [2018-09-19 04:10:36,553 INFO L78 Accepts]: Start accepts. Automaton has 434 states and 615 transitions. Word has length 66 [2018-09-19 04:10:36,554 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-19 04:10:36,556 INFO L480 AbstractCegarLoop]: Abstraction has 434 states and 615 transitions. [2018-09-19 04:10:36,556 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-09-19 04:10:36,557 INFO L276 IsEmpty]: Start isEmpty. Operand 434 states and 615 transitions. [2018-09-19 04:10:36,570 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 152 [2018-09-19 04:10:36,570 INFO L368 BasicCegarLoop]: Found error trace [2018-09-19 04:10:36,571 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, 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] [2018-09-19 04:10:36,571 INFO L423 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-19 04:10:36,573 INFO L82 PathProgramCache]: Analyzing trace with hash 1841924003, now seen corresponding path program 1 times [2018-09-19 04:10:36,573 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-19 04:10:36,574 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 152 with the following transitions: [2018-09-19 04:10:36,574 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], [385], [393], [401], [409], [417], [425], [429], [431], [434], [442], [450], [458], [466], [474], [482], [490], [495], [499], [503], [507], [511], [515], [519], [523], [527], [531], [535], [539], [543], [547], [551], [554], [948], [952], [956], [962], [966], [968], [973], [974], [975], [977], [978] [2018-09-19 04:10:36,588 INFO L148 AbstractInterpreter]: Using domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-09-19 04:10:36,588 INFO L101 FixpointEngine]: Starting fixpoint engine with domain CompoundDomain (maxUnwinding=3, maxParallelStates=1) [2018-09-19 04:10:40,543 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-19 04:10:40,544 INFO L272 AbstractInterpreter]: Visited 92 different actions 177 times. Merged at 4 different actions 4 times. Never widened. Found 1 fixpoints after 1 different actions. Largest state had 24 variables. [2018-09-19 04:10:40,558 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-19 04:10:41,685 INFO L232 lantSequenceWeakener]: Weakened 149 states. On average, predicates are now at 78.85% of their original sizes. [2018-09-19 04:10:41,686 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-19 04:10:42,328 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-19 04:10:42,329 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-19 04:10:42,329 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2018-09-19 04:10:42,329 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-19 04:10:42,331 INFO L459 AbstractCegarLoop]: Interpolant automaton has 14 states [2018-09-19 04:10:42,331 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2018-09-19 04:10:42,332 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=135, Unknown=0, NotChecked=0, Total=182 [2018-09-19 04:10:42,332 INFO L87 Difference]: Start difference. First operand 434 states and 615 transitions. Second operand 14 states. [2018-09-19 04:10:55,977 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-19 04:10:55,977 INFO L93 Difference]: Finished difference Result 1340 states and 2335 transitions. [2018-09-19 04:10:55,982 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2018-09-19 04:10:55,982 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 151 [2018-09-19 04:10:55,985 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-19 04:10:55,998 INFO L225 Difference]: With dead ends: 1340 [2018-09-19 04:10:55,998 INFO L226 Difference]: Without dead ends: 1095 [2018-09-19 04:10:56,005 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 163 GetRequests, 138 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 137 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=155, Invalid=547, Unknown=0, NotChecked=0, Total=702 [2018-09-19 04:10:56,007 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1095 states. [2018-09-19 04:10:56,056 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1095 to 850. [2018-09-19 04:10:56,057 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 850 states. [2018-09-19 04:10:56,061 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 850 states to 850 states and 1058 transitions. [2018-09-19 04:10:56,062 INFO L78 Accepts]: Start accepts. Automaton has 850 states and 1058 transitions. Word has length 151 [2018-09-19 04:10:56,063 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-19 04:10:56,063 INFO L480 AbstractCegarLoop]: Abstraction has 850 states and 1058 transitions. [2018-09-19 04:10:56,063 INFO L481 AbstractCegarLoop]: Interpolant automaton has 14 states. [2018-09-19 04:10:56,063 INFO L276 IsEmpty]: Start isEmpty. Operand 850 states and 1058 transitions. [2018-09-19 04:10:56,076 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 178 [2018-09-19 04:10:56,077 INFO L368 BasicCegarLoop]: Found error trace [2018-09-19 04:10:56,077 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, 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] [2018-09-19 04:10:56,078 INFO L423 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-19 04:10:56,078 INFO L82 PathProgramCache]: Analyzing trace with hash 1896583951, now seen corresponding path program 1 times [2018-09-19 04:10:56,078 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-19 04:10:56,079 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 178 with the following transitions: [2018-09-19 04:10:56,079 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], [385], [393], [401], [409], [417], [425], [429], [431], [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], [658], [948], [952], [956], [962], [966], [968], [973], [974], [975], [977], [978] [2018-09-19 04:10:56,084 INFO L148 AbstractInterpreter]: Using domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-09-19 04:10:56,084 INFO L101 FixpointEngine]: Starting fixpoint engine with domain CompoundDomain (maxUnwinding=3, maxParallelStates=1) [2018-09-19 04:11:01,717 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-19 04:11:01,717 INFO L272 AbstractInterpreter]: Visited 118 different actions 230 times. Merged at 5 different actions 5 times. Never widened. Found 1 fixpoints after 1 different actions. Largest state had 24 variables. [2018-09-19 04:11:01,725 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-19 04:11:02,952 INFO L232 lantSequenceWeakener]: Weakened 175 states. On average, predicates are now at 78.61% of their original sizes. [2018-09-19 04:11:02,952 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-19 04:11:04,019 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-19 04:11:04,020 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-19 04:11:04,020 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2018-09-19 04:11:04,020 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-19 04:11:04,021 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2018-09-19 04:11:04,022 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2018-09-19 04:11:04,022 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=81, Unknown=0, NotChecked=0, Total=110 [2018-09-19 04:11:04,022 INFO L87 Difference]: Start difference. First operand 850 states and 1058 transitions. Second operand 11 states. [2018-09-19 04:11:14,309 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-19 04:11:14,310 INFO L93 Difference]: Finished difference Result 1283 states and 1842 transitions. [2018-09-19 04:11:14,317 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2018-09-19 04:11:14,317 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 177 [2018-09-19 04:11:14,318 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-19 04:11:14,329 INFO L225 Difference]: With dead ends: 1283 [2018-09-19 04:11:14,330 INFO L226 Difference]: Without dead ends: 1038 [2018-09-19 04:11:14,332 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 184 GetRequests, 167 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=83, Invalid=259, Unknown=0, NotChecked=0, Total=342 [2018-09-19 04:11:14,333 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1038 states. [2018-09-19 04:11:14,382 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1038 to 1035. [2018-09-19 04:11:14,382 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1035 states. [2018-09-19 04:11:14,387 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1035 states to 1035 states and 1256 transitions. [2018-09-19 04:11:14,388 INFO L78 Accepts]: Start accepts. Automaton has 1035 states and 1256 transitions. Word has length 177 [2018-09-19 04:11:14,388 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-19 04:11:14,389 INFO L480 AbstractCegarLoop]: Abstraction has 1035 states and 1256 transitions. [2018-09-19 04:11:14,389 INFO L481 AbstractCegarLoop]: Interpolant automaton has 11 states. [2018-09-19 04:11:14,389 INFO L276 IsEmpty]: Start isEmpty. Operand 1035 states and 1256 transitions. [2018-09-19 04:11:14,394 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 263 [2018-09-19 04:11:14,394 INFO L368 BasicCegarLoop]: Found error trace [2018-09-19 04:11:14,395 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-19 04:11:14,395 INFO L423 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-19 04:11:14,396 INFO L82 PathProgramCache]: Analyzing trace with hash -1373957856, now seen corresponding path program 1 times [2018-09-19 04:11:14,396 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-19 04:11:14,396 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 263 with the following transitions: [2018-09-19 04:11:14,396 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], [385], [393], [401], [409], [417], [425], [429], [431], [434], [442], [450], [458], [466], [474], [482], [490], [495], [499], [503], [507], [511], [515], [519], [523], [527], [531], [535], [539], [543], [547], [551], [554], [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], [658], [948], [952], [956], [962], [966], [968], [973], [974], [975], [977], [978] [2018-09-19 04:11:14,400 INFO L148 AbstractInterpreter]: Using domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-09-19 04:11:14,400 INFO L101 FixpointEngine]: Starting fixpoint engine with domain CompoundDomain (maxUnwinding=3, maxParallelStates=1) [2018-09-19 04:11:21,415 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-19 04:11:21,416 INFO L272 AbstractInterpreter]: Visited 119 different actions 352 times. Merged at 7 different actions 17 times. Never widened. Found 4 fixpoints after 2 different actions. Largest state had 24 variables. [2018-09-19 04:11:21,424 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-19 04:11:23,342 INFO L232 lantSequenceWeakener]: Weakened 260 states. On average, predicates are now at 78.21% of their original sizes. [2018-09-19 04:11:23,343 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-19 04:11:24,111 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-19 04:11:24,112 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-19 04:11:24,112 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2018-09-19 04:11:24,112 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-19 04:11:24,113 INFO L459 AbstractCegarLoop]: Interpolant automaton has 16 states [2018-09-19 04:11:24,114 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2018-09-19 04:11:24,114 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=63, Invalid=177, Unknown=0, NotChecked=0, Total=240 [2018-09-19 04:11:24,114 INFO L87 Difference]: Start difference. First operand 1035 states and 1256 transitions. Second operand 16 states. [2018-09-19 04:11:36,363 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-19 04:11:36,363 INFO L93 Difference]: Finished difference Result 2673 states and 3868 transitions. [2018-09-19 04:11:36,364 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2018-09-19 04:11:36,364 INFO L78 Accepts]: Start accepts. Automaton has 16 states. Word has length 262 [2018-09-19 04:11:36,366 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-19 04:11:36,379 INFO L225 Difference]: With dead ends: 2673 [2018-09-19 04:11:36,379 INFO L226 Difference]: Without dead ends: 2012 [2018-09-19 04:11:36,384 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 280 GetRequests, 247 SyntacticMatches, 0 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 275 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=260, Invalid=930, Unknown=0, NotChecked=0, Total=1190 [2018-09-19 04:11:36,385 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2012 states. [2018-09-19 04:11:36,439 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2012 to 1652. [2018-09-19 04:11:36,439 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1652 states. [2018-09-19 04:11:36,445 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1652 states to 1652 states and 1949 transitions. [2018-09-19 04:11:36,446 INFO L78 Accepts]: Start accepts. Automaton has 1652 states and 1949 transitions. Word has length 262 [2018-09-19 04:11:36,446 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-19 04:11:36,446 INFO L480 AbstractCegarLoop]: Abstraction has 1652 states and 1949 transitions. [2018-09-19 04:11:36,447 INFO L481 AbstractCegarLoop]: Interpolant automaton has 16 states. [2018-09-19 04:11:36,447 INFO L276 IsEmpty]: Start isEmpty. Operand 1652 states and 1949 transitions. [2018-09-19 04:11:36,454 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 288 [2018-09-19 04:11:36,454 INFO L368 BasicCegarLoop]: Found error trace [2018-09-19 04:11:36,454 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, 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, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-19 04:11:36,455 INFO L423 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-19 04:11:36,455 INFO L82 PathProgramCache]: Analyzing trace with hash 976289219, now seen corresponding path program 1 times [2018-09-19 04:11:36,455 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-19 04:11:36,455 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 288 with the following transitions: [2018-09-19 04:11:36,456 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], [385], [393], [401], [409], [417], [425], [429], [431], [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], [654], [655], [658], [948], [952], [956], [962], [966], [968], [973], [974], [975], [977], [978] [2018-09-19 04:11:36,462 INFO L148 AbstractInterpreter]: Using domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-09-19 04:11:36,468 INFO L101 FixpointEngine]: Starting fixpoint engine with domain CompoundDomain (maxUnwinding=3, maxParallelStates=1) [2018-09-19 04:11:41,379 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-09-19 04:11:51,864 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-19 04:11:51,865 INFO L272 AbstractInterpreter]: Visited 119 different actions 465 times. Merged at 7 different actions 22 times. Never widened. Found 4 fixpoints after 2 different actions. Largest state had 24 variables. [2018-09-19 04:11:51,872 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-19 04:11:54,077 INFO L232 lantSequenceWeakener]: Weakened 285 states. On average, predicates are now at 78.13% of their original sizes. [2018-09-19 04:11:54,077 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-19 04:11:54,573 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-19 04:11:54,573 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-19 04:11:54,574 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2018-09-19 04:11:54,574 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-19 04:11:54,574 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2018-09-19 04:11:54,575 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2018-09-19 04:11:54,575 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2018-09-19 04:11:54,575 INFO L87 Difference]: Start difference. First operand 1652 states and 1949 transitions. Second operand 10 states. [2018-09-19 04:11:59,508 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-19 04:11:59,509 INFO L93 Difference]: Finished difference Result 2091 states and 2739 transitions. [2018-09-19 04:11:59,509 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2018-09-19 04:11:59,509 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 287 [2018-09-19 04:11:59,510 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-19 04:11:59,519 INFO L225 Difference]: With dead ends: 2091 [2018-09-19 04:11:59,520 INFO L226 Difference]: Without dead ends: 1846 [2018-09-19 04:11:59,522 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 294 GetRequests, 278 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 41 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=74, Invalid=232, Unknown=0, NotChecked=0, Total=306 [2018-09-19 04:11:59,524 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1846 states. [2018-09-19 04:11:59,574 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1846 to 1839. [2018-09-19 04:11:59,574 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1839 states. [2018-09-19 04:11:59,583 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1839 states to 1839 states and 2167 transitions. [2018-09-19 04:11:59,583 INFO L78 Accepts]: Start accepts. Automaton has 1839 states and 2167 transitions. Word has length 287 [2018-09-19 04:11:59,584 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-19 04:11:59,584 INFO L480 AbstractCegarLoop]: Abstraction has 1839 states and 2167 transitions. [2018-09-19 04:11:59,584 INFO L481 AbstractCegarLoop]: Interpolant automaton has 10 states. [2018-09-19 04:11:59,584 INFO L276 IsEmpty]: Start isEmpty. Operand 1839 states and 2167 transitions. [2018-09-19 04:11:59,594 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 366 [2018-09-19 04:11:59,594 INFO L368 BasicCegarLoop]: Found error trace [2018-09-19 04:11:59,595 INFO L376 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-19 04:11:59,595 INFO L423 AbstractCegarLoop]: === Iteration 6 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-19 04:11:59,596 INFO L82 PathProgramCache]: Analyzing trace with hash -578198601, now seen corresponding path program 1 times [2018-09-19 04:11:59,596 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-19 04:11:59,596 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 366 with the following transitions: [2018-09-19 04:11:59,596 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], [385], [393], [401], [409], [417], [425], [429], [431], [434], [442], [450], [458], [466], [474], [482], [490], [495], [499], [503], [507], [511], [515], [519], [523], [526], [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], [654], [655], [658], [948], [952], [956], [962], [966], [968], [973], [974], [975], [977], [978] [2018-09-19 04:11:59,600 INFO L148 AbstractInterpreter]: Using domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-09-19 04:11:59,601 INFO L101 FixpointEngine]: Starting fixpoint engine with domain CompoundDomain (maxUnwinding=3, maxParallelStates=1) [2018-09-19 04:12:04,728 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-09-19 04:12:19,781 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-19 04:12:19,781 INFO L272 AbstractInterpreter]: Visited 120 different actions 709 times. Merged at 8 different actions 44 times. Widened at 1 different actions 1 times. Found 10 fixpoints after 2 different actions. Largest state had 24 variables. [2018-09-19 04:12:19,789 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-19 04:12:21,855 INFO L232 lantSequenceWeakener]: Weakened 363 states. On average, predicates are now at 77.97% of their original sizes. [2018-09-19 04:12:21,856 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-19 04:12:22,285 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-19 04:12:22,285 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-19 04:12:22,286 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2018-09-19 04:12:22,286 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-19 04:12:22,286 INFO L459 AbstractCegarLoop]: Interpolant automaton has 14 states [2018-09-19 04:12:22,287 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2018-09-19 04:12:22,287 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=136, Unknown=0, NotChecked=0, Total=182 [2018-09-19 04:12:22,287 INFO L87 Difference]: Start difference. First operand 1839 states and 2167 transitions. Second operand 14 states. [2018-09-19 04:12:31,763 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-19 04:12:31,764 INFO L93 Difference]: Finished difference Result 2871 states and 3949 transitions. [2018-09-19 04:12:31,764 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2018-09-19 04:12:31,765 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 365 [2018-09-19 04:12:31,766 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-19 04:12:31,779 INFO L225 Difference]: With dead ends: 2871 [2018-09-19 04:12:31,779 INFO L226 Difference]: Without dead ends: 2439 [2018-09-19 04:12:31,784 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 384 GetRequests, 352 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 260 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=228, Invalid=894, Unknown=0, NotChecked=0, Total=1122 [2018-09-19 04:12:31,787 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2439 states. [2018-09-19 04:12:31,857 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2439 to 2046. [2018-09-19 04:12:31,858 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2046 states. [2018-09-19 04:12:31,872 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2046 states to 2046 states and 2424 transitions. [2018-09-19 04:12:31,873 INFO L78 Accepts]: Start accepts. Automaton has 2046 states and 2424 transitions. Word has length 365 [2018-09-19 04:12:31,874 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-19 04:12:31,874 INFO L480 AbstractCegarLoop]: Abstraction has 2046 states and 2424 transitions. [2018-09-19 04:12:31,874 INFO L481 AbstractCegarLoop]: Interpolant automaton has 14 states. [2018-09-19 04:12:31,874 INFO L276 IsEmpty]: Start isEmpty. Operand 2046 states and 2424 transitions. [2018-09-19 04:12:31,884 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 370 [2018-09-19 04:12:31,885 INFO L368 BasicCegarLoop]: Found error trace [2018-09-19 04:12:31,885 INFO L376 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-19 04:12:31,885 INFO L423 AbstractCegarLoop]: === Iteration 7 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-19 04:12:31,886 INFO L82 PathProgramCache]: Analyzing trace with hash 1425870063, now seen corresponding path program 1 times [2018-09-19 04:12:31,886 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-19 04:12:31,886 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 370 with the following transitions: [2018-09-19 04:12:31,887 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], [385], [393], [401], [409], [417], [425], [429], [431], [434], [442], [450], [458], [466], [474], [482], [490], [495], [499], [503], [507], [511], [515], [519], [523], [527], [531], [535], [539], [542], [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], [654], [655], [658], [948], [952], [956], [962], [966], [968], [973], [974], [975], [977], [978] [2018-09-19 04:12:31,890 INFO L148 AbstractInterpreter]: Using domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-09-19 04:12:31,890 INFO L101 FixpointEngine]: Starting fixpoint engine with domain CompoundDomain (maxUnwinding=3, maxParallelStates=1) [2018-09-19 04:12:36,966 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-09-19 04:12:59,174 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-19 04:12:59,175 INFO L272 AbstractInterpreter]: Visited 120 different actions 945 times. Merged at 8 different actions 62 times. Widened at 1 different actions 3 times. Found 14 fixpoints after 2 different actions. Largest state had 24 variables. [2018-09-19 04:12:59,176 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-19 04:13:01,107 INFO L232 lantSequenceWeakener]: Weakened 367 states. On average, predicates are now at 77.96% of their original sizes. [2018-09-19 04:13:01,107 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-19 04:13:01,353 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-19 04:13:01,354 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-19 04:13:01,354 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2018-09-19 04:13:01,354 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-19 04:13:01,354 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2018-09-19 04:13:01,355 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2018-09-19 04:13:01,355 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2018-09-19 04:13:01,355 INFO L87 Difference]: Start difference. First operand 2046 states and 2424 transitions. Second operand 10 states. [2018-09-19 04:13:10,278 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-19 04:13:10,278 INFO L93 Difference]: Finished difference Result 2880 states and 3695 transitions. [2018-09-19 04:13:10,279 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2018-09-19 04:13:10,279 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 369 [2018-09-19 04:13:10,280 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-19 04:13:10,289 INFO L225 Difference]: With dead ends: 2880 [2018-09-19 04:13:10,289 INFO L226 Difference]: Without dead ends: 2241 [2018-09-19 04:13:10,293 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 376 GetRequests, 360 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 41 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=74, Invalid=232, Unknown=0, NotChecked=0, Total=306 [2018-09-19 04:13:10,295 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2241 states. [2018-09-19 04:13:10,350 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2241 to 2231. [2018-09-19 04:13:10,350 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2231 states. [2018-09-19 04:13:10,359 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2231 states to 2231 states and 2642 transitions. [2018-09-19 04:13:10,359 INFO L78 Accepts]: Start accepts. Automaton has 2231 states and 2642 transitions. Word has length 369 [2018-09-19 04:13:10,360 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-19 04:13:10,360 INFO L480 AbstractCegarLoop]: Abstraction has 2231 states and 2642 transitions. [2018-09-19 04:13:10,360 INFO L481 AbstractCegarLoop]: Interpolant automaton has 10 states. [2018-09-19 04:13:10,360 INFO L276 IsEmpty]: Start isEmpty. Operand 2231 states and 2642 transitions. [2018-09-19 04:13:10,368 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 391 [2018-09-19 04:13:10,368 INFO L368 BasicCegarLoop]: Found error trace [2018-09-19 04:13:10,368 INFO L376 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-19 04:13:10,369 INFO L423 AbstractCegarLoop]: === Iteration 8 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-19 04:13:10,369 INFO L82 PathProgramCache]: Analyzing trace with hash 1102495632, now seen corresponding path program 1 times [2018-09-19 04:13:10,369 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-19 04:13:10,370 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 391 with the following transitions: [2018-09-19 04:13:10,370 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], [385], [393], [401], [409], [417], [425], [429], [431], [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], [626], [627], [631], [635], [639], [643], [647], [651], [654], [655], [658], [948], [952], [956], [962], [966], [968], [973], [974], [975], [977], [978] [2018-09-19 04:13:10,373 INFO L148 AbstractInterpreter]: Using domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-09-19 04:13:10,373 INFO L101 FixpointEngine]: Starting fixpoint engine with domain CompoundDomain (maxUnwinding=3, maxParallelStates=1) [2018-09-19 04:13:15,059 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-09-19 04:13:30,606 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-19 04:13:30,606 INFO L272 AbstractInterpreter]: Visited 120 different actions 709 times. Merged at 8 different actions 44 times. Widened at 1 different actions 1 times. Found 10 fixpoints after 2 different actions. Largest state had 24 variables. [2018-09-19 04:13:30,642 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-19 04:13:32,736 INFO L232 lantSequenceWeakener]: Weakened 388 states. On average, predicates are now at 77.93% of their original sizes. [2018-09-19 04:13:32,737 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-19 04:13:33,179 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-19 04:13:33,180 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-19 04:13:33,180 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2018-09-19 04:13:33,180 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-19 04:13:33,181 INFO L459 AbstractCegarLoop]: Interpolant automaton has 14 states [2018-09-19 04:13:33,182 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2018-09-19 04:13:33,182 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=136, Unknown=0, NotChecked=0, Total=182 [2018-09-19 04:13:33,182 INFO L87 Difference]: Start difference. First operand 2231 states and 2642 transitions. Second operand 14 states. [2018-09-19 04:13:44,600 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-19 04:13:44,601 INFO L93 Difference]: Finished difference Result 3661 states and 4914 transitions. [2018-09-19 04:13:44,601 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2018-09-19 04:13:44,601 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 390 [2018-09-19 04:13:44,603 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-19 04:13:44,612 INFO L225 Difference]: With dead ends: 3661 [2018-09-19 04:13:44,612 INFO L226 Difference]: Without dead ends: 2837 [2018-09-19 04:13:44,616 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 409 GetRequests, 377 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 260 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=228, Invalid=894, Unknown=0, NotChecked=0, Total=1122 [2018-09-19 04:13:44,618 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2837 states. [2018-09-19 04:13:44,680 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2837 to 2442. [2018-09-19 04:13:44,680 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2442 states. [2018-09-19 04:13:44,685 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2442 states to 2442 states and 2905 transitions. [2018-09-19 04:13:44,686 INFO L78 Accepts]: Start accepts. Automaton has 2442 states and 2905 transitions. Word has length 390 [2018-09-19 04:13:44,686 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-19 04:13:44,686 INFO L480 AbstractCegarLoop]: Abstraction has 2442 states and 2905 transitions. [2018-09-19 04:13:44,687 INFO L481 AbstractCegarLoop]: Interpolant automaton has 14 states. [2018-09-19 04:13:44,687 INFO L276 IsEmpty]: Start isEmpty. Operand 2442 states and 2905 transitions. [2018-09-19 04:13:44,695 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 448 [2018-09-19 04:13:44,695 INFO L368 BasicCegarLoop]: Found error trace [2018-09-19 04:13:44,695 INFO L376 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-19 04:13:44,696 INFO L423 AbstractCegarLoop]: === Iteration 9 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-19 04:13:44,696 INFO L82 PathProgramCache]: Analyzing trace with hash -1857438237, now seen corresponding path program 1 times [2018-09-19 04:13:44,696 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-19 04:13:44,696 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 448 with the following transitions: [2018-09-19 04:13:44,697 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], [385], [393], [401], [409], [417], [425], [429], [431], [434], [442], [450], [458], [466], [474], [482], [490], [495], [499], [503], [507], [511], [515], [519], [523], [526], [527], [531], [535], [539], [542], [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], [654], [655], [658], [948], [952], [956], [962], [966], [968], [973], [974], [975], [977], [978] [2018-09-19 04:13:44,699 INFO L148 AbstractInterpreter]: Using domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-09-19 04:13:44,699 INFO L101 FixpointEngine]: Starting fixpoint engine with domain CompoundDomain (maxUnwinding=3, maxParallelStates=1) [2018-09-19 04:13:49,177 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-09-19 04:14:18,331 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-19 04:14:18,331 INFO L272 AbstractInterpreter]: Visited 121 different actions 1206 times. Merged at 9 different actions 95 times. Widened at 1 different actions 5 times. Found 26 fixpoints after 2 different actions. Largest state had 24 variables. [2018-09-19 04:14:18,338 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-19 04:14:20,586 INFO L232 lantSequenceWeakener]: Weakened 445 states. On average, predicates are now at 77.86% of their original sizes. [2018-09-19 04:14:20,586 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-19 04:14:21,046 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-19 04:14:21,047 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-19 04:14:21,047 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2018-09-19 04:14:21,047 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-19 04:14:21,048 INFO L459 AbstractCegarLoop]: Interpolant automaton has 14 states [2018-09-19 04:14:21,048 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2018-09-19 04:14:21,048 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=136, Unknown=0, NotChecked=0, Total=182 [2018-09-19 04:14:21,048 INFO L87 Difference]: Start difference. First operand 2442 states and 2905 transitions. Second operand 14 states. Received shutdown request... [2018-09-19 04:14:33,600 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2018-09-19 04:14:33,600 WARN L549 AbstractCegarLoop]: Verification canceled [2018-09-19 04:14:33,608 WARN L206 ceAbstractionStarter]: Timeout [2018-09-19 04:14:33,608 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.09 04:14:33 BoogieIcfgContainer [2018-09-19 04:14:33,609 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-09-19 04:14:33,610 INFO L168 Benchmark]: Toolchain (without parser) took 250533.33 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 3.4 GB in the end (delta: -2.0 GB). Peak memory consumption was 714.4 MB. Max. memory is 7.1 GB. [2018-09-19 04:14:33,612 INFO L168 Benchmark]: CDTParser took 0.22 ms. Allocated memory is still 1.5 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-09-19 04:14:33,612 INFO L168 Benchmark]: CACSL2BoogieTranslator took 898.79 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: 55.5 MB). Peak memory consumption was 55.5 MB. Max. memory is 7.1 GB. [2018-09-19 04:14:33,613 INFO L168 Benchmark]: Boogie Procedure Inliner took 161.32 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. [2018-09-19 04:14:33,614 INFO L168 Benchmark]: Boogie Preprocessor took 315.35 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 764.9 MB). Free memory was 1.3 GB in the beginning and 2.2 GB in the end (delta: -868.2 MB). Peak memory consumption was 33.0 MB. Max. memory is 7.1 GB. [2018-09-19 04:14:33,615 INFO L168 Benchmark]: RCFGBuilder took 3808.44 ms. Allocated memory is still 2.3 GB. Free memory was 2.2 GB in the beginning and 2.1 GB in the end (delta: 125.6 MB). Peak memory consumption was 125.6 MB. Max. memory is 7.1 GB. [2018-09-19 04:14:33,616 INFO L168 Benchmark]: TraceAbstraction took 245342.74 ms. Allocated memory was 2.3 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 3.4 GB in the end (delta: -1.3 GB). Peak memory consumption was 625.9 MB. Max. memory is 7.1 GB. [2018-09-19 04:14:33,621 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 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 898.79 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: 55.5 MB). Peak memory consumption was 55.5 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 161.32 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 315.35 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 764.9 MB). Free memory was 1.3 GB in the beginning and 2.2 GB in the end (delta: -868.2 MB). Peak memory consumption was 33.0 MB. Max. memory is 7.1 GB. * RCFGBuilder took 3808.44 ms. Allocated memory is still 2.3 GB. Free memory was 2.2 GB in the beginning and 2.1 GB in the end (delta: 125.6 MB). Peak memory consumption was 125.6 MB. Max. memory is 7.1 GB. * TraceAbstraction took 245342.74 ms. Allocated memory was 2.3 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 3.4 GB in the end (delta: -1.3 GB). Peak memory consumption was 625.9 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResultAtElement [Line: 181]: Timeout (TraceAbstraction) Unable to prove that call of __VERIFIER_error() unreachable (line 181). Cancelled while BasicCegarLoop was constructing difference of abstraction (2442states) and FLOYD_HOARE automaton (currently 30 states, 14 states before enhancement), while ReachableStatesComputation was computing reachable states (3534 states constructedinput type IntersectNwa). - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 255 locations, 1 error locations. TIMEOUT Result, 245.2s OverallTime, 9 OverallIterations, 5 TraceHistogramMax, 88.8s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 2032 SDtfs, 15161 SDslu, 3636 SDs, 0 SdLazy, 24936 SolverSat, 4542 SolverUnsat, 2 SolverUnknown, 0 SolverNotchecked, 76.8s Time, PredicateUnifierStatistics: 18 DeclaredPredicates, 2621 GetRequests, 2414 SyntacticMatches, 0 SemanticMatches, 207 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1322 ImplicationChecksByTransitivity, 8.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=2442occurred in iteration=8, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 135.1s AbstIntTime, 9 AbstIntIterations, 9 AbstIntStrong, 0.9956578936987692 AbsIntWeakeningRatio, 0.09580838323353294 AbsIntAvgWeakeningVarsNumRemoved, 922.179241516966 AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.5s AutomataMinimizationTime, 8 MinimizatonAttempts, 1415 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/Problem14_label49_true-unreach-call_false-termination.c_svcomp-Reach-64bit-ToothlessTaipan_Default-OldIcfg.epf_AutomizerCInline.xml/Csv-Benchmark-0-2018-09-19_04-14-33-638.csv Written .csv to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/csv/Problem14_label49_true-unreach-call_false-termination.c_svcomp-Reach-64bit-ToothlessTaipan_Default-OldIcfg.epf_AutomizerCInline.xml/Csv-TraceAbstractionBenchmarks-0-2018-09-19_04-14-33-638.csv Completed graceful shutdown