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_OCT-OldIcfg.epf -i ../../../trunk/examples/svcomp/eca-rers2012/Problem14_label35_true-unreach-call_false-termination.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-dace188-m [2018-09-15 20:08:25,606 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-09-15 20:08:25,609 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-09-15 20:08:25,623 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-09-15 20:08:25,623 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-09-15 20:08:25,624 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-09-15 20:08:25,626 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-09-15 20:08:25,628 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-09-15 20:08:25,629 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-09-15 20:08:25,630 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-09-15 20:08:25,631 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-09-15 20:08:25,631 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-09-15 20:08:25,632 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-09-15 20:08:25,633 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-09-15 20:08:25,635 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-09-15 20:08:25,635 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-09-15 20:08:25,636 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-09-15 20:08:25,638 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-09-15 20:08:25,640 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-09-15 20:08:25,642 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-09-15 20:08:25,643 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-09-15 20:08:25,644 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-09-15 20:08:25,647 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-09-15 20:08:25,647 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-09-15 20:08:25,647 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-09-15 20:08:25,648 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-09-15 20:08:25,650 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-09-15 20:08:25,650 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-09-15 20:08:25,651 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-09-15 20:08:25,656 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-09-15 20:08:25,656 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-09-15 20:08:25,660 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-09-15 20:08:25,661 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-09-15 20:08:25,661 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-09-15 20:08:25,662 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-09-15 20:08:25,663 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-09-15 20:08:25,665 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/ai/taipanbench/svcomp-Reach-64bit-ToothlessTaipan_OCT-OldIcfg.epf [2018-09-15 20:08:25,696 INFO L110 SettingsManager]: Loading preferences was successful [2018-09-15 20:08:25,699 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-09-15 20:08:25,700 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-09-15 20:08:25,700 INFO L133 SettingsManager]: * User list type=DISABLED [2018-09-15 20:08:25,701 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-09-15 20:08:25,701 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-09-15 20:08:25,701 INFO L133 SettingsManager]: * Congruence Domain=false [2018-09-15 20:08:25,701 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-09-15 20:08:25,701 INFO L133 SettingsManager]: * Abstract domain=OctagonDomain [2018-09-15 20:08:25,705 INFO L133 SettingsManager]: * Log string format=TERM [2018-09-15 20:08:25,705 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-09-15 20:08:25,705 INFO L133 SettingsManager]: * Interval Domain=false [2018-09-15 20:08:25,706 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-09-15 20:08:25,707 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-09-15 20:08:25,707 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-09-15 20:08:25,708 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-09-15 20:08:25,708 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-09-15 20:08:25,708 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-09-15 20:08:25,708 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-09-15 20:08:25,708 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-09-15 20:08:25,709 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-09-15 20:08:25,709 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-09-15 20:08:25,709 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-09-15 20:08:25,709 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-09-15 20:08:25,711 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-09-15 20:08:25,711 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-09-15 20:08:25,711 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-09-15 20:08:25,711 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-09-15 20:08:25,711 INFO L133 SettingsManager]: * Trace refinement strategy=TOOTHLESS_TAIPAN [2018-09-15 20:08:25,712 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-09-15 20:08:25,712 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-09-15 20:08:25,712 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-09-15 20:08:25,712 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-09-15 20:08:25,712 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-09-15 20:08:25,778 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-09-15 20:08:25,793 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-09-15 20:08:25,798 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-09-15 20:08:25,800 INFO L271 PluginConnector]: Initializing CDTParser... [2018-09-15 20:08:25,800 INFO L276 PluginConnector]: CDTParser initialized [2018-09-15 20:08:25,801 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem14_label35_true-unreach-call_false-termination.c [2018-09-15 20:08:26,211 INFO L221 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5d3871487/1e970a2c35bd42e0b0fd7f168a8ff090/FLAG5a6a9b927 [2018-09-15 20:08:26,498 INFO L277 CDTParser]: Found 1 translation units. [2018-09-15 20:08:26,505 INFO L159 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem14_label35_true-unreach-call_false-termination.c [2018-09-15 20:08:26,529 INFO L325 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5d3871487/1e970a2c35bd42e0b0fd7f168a8ff090/FLAG5a6a9b927 [2018-09-15 20:08:26,555 INFO L333 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5d3871487/1e970a2c35bd42e0b0fd7f168a8ff090 [2018-09-15 20:08:26,569 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-09-15 20:08:26,572 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-09-15 20:08:26,574 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-09-15 20:08:26,574 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-09-15 20:08:26,582 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-09-15 20:08:26,583 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.09 08:08:26" (1/1) ... [2018-09-15 20:08:26,587 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@58f15d96 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 08:08:26, skipping insertion in model container [2018-09-15 20:08:26,587 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.09 08:08:26" (1/1) ... [2018-09-15 20:08:26,600 INFO L160 ieTranslatorObserver]: Starting translation in SV-COMP mode [2018-09-15 20:08:27,203 INFO L170 PostProcessor]: Settings: Checked method=main [2018-09-15 20:08:27,231 INFO L424 MainDispatcher]: Starting main dispatcher in SV-COMP mode [2018-09-15 20:08:27,381 INFO L170 PostProcessor]: Settings: Checked method=main [2018-09-15 20:08:27,441 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 08:08:27 WrapperNode [2018-09-15 20:08:27,441 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-09-15 20:08:27,442 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-09-15 20:08:27,442 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-09-15 20:08:27,442 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-09-15 20:08:27,453 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 08:08:27" (1/1) ... [2018-09-15 20:08:27,482 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 08:08:27" (1/1) ... [2018-09-15 20:08:27,604 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-09-15 20:08:27,605 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-09-15 20:08:27,605 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-09-15 20:08:27,605 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-09-15 20:08:27,817 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 08:08:27" (1/1) ... [2018-09-15 20:08:27,817 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 08:08:27" (1/1) ... [2018-09-15 20:08:27,832 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 08:08:27" (1/1) ... [2018-09-15 20:08:27,833 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 08:08:27" (1/1) ... [2018-09-15 20:08:27,896 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 08:08:27" (1/1) ... [2018-09-15 20:08:27,919 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 08:08:27" (1/1) ... [2018-09-15 20:08:27,934 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 08:08:27" (1/1) ... [2018-09-15 20:08:27,945 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-09-15 20:08:27,946 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-09-15 20:08:27,946 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-09-15 20:08:27,947 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-09-15 20:08:27,948 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 08:08:27" (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 20:08:28,027 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-09-15 20:08:28,027 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-09-15 20:08:28,028 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2018-09-15 20:08:28,028 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2018-09-15 20:08:28,029 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-09-15 20:08:28,029 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-09-15 20:08:28,029 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-09-15 20:08:28,029 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-09-15 20:08:32,129 INFO L353 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-09-15 20:08:32,129 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.09 08:08:32 BoogieIcfgContainer [2018-09-15 20:08:32,130 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-09-15 20:08:32,131 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-09-15 20:08:32,131 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-09-15 20:08:32,135 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-09-15 20:08:32,135 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.09 08:08:26" (1/3) ... [2018-09-15 20:08:32,136 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@576fe912 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.09 08:08:32, skipping insertion in model container [2018-09-15 20:08:32,136 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 08:08:27" (2/3) ... [2018-09-15 20:08:32,137 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@576fe912 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.09 08:08:32, skipping insertion in model container [2018-09-15 20:08:32,137 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.09 08:08:32" (3/3) ... [2018-09-15 20:08:32,139 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem14_label35_true-unreach-call_false-termination.c [2018-09-15 20:08:32,147 INFO L137 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-09-15 20:08:32,158 INFO L149 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-09-15 20:08:32,215 INFO L130 ementStrategyFactory]: Using default assertion order modulation [2018-09-15 20:08:32,216 INFO L381 AbstractCegarLoop]: Interprodecural is true [2018-09-15 20:08:32,217 INFO L382 AbstractCegarLoop]: Hoare is true [2018-09-15 20:08:32,217 INFO L383 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-09-15 20:08:32,217 INFO L384 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-09-15 20:08:32,217 INFO L385 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-09-15 20:08:32,217 INFO L386 AbstractCegarLoop]: Difference is false [2018-09-15 20:08:32,218 INFO L387 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-09-15 20:08:32,218 INFO L392 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-09-15 20:08:32,249 INFO L276 IsEmpty]: Start isEmpty. Operand 255 states. [2018-09-15 20:08:32,258 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2018-09-15 20:08:32,259 INFO L368 BasicCegarLoop]: Found error trace [2018-09-15 20:08:32,260 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] [2018-09-15 20:08:32,261 INFO L423 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-15 20:08:32,267 INFO L82 PathProgramCache]: Analyzing trace with hash -1354221791, now seen corresponding path program 1 times [2018-09-15 20:08:32,270 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-15 20:08:32,271 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 52 with the following transitions: [2018-09-15 20:08:32,274 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], [309], [311], [952], [956], [962], [966], [973], [974], [975], [977] [2018-09-15 20:08:32,340 INFO L148 AbstractInterpreter]: Using domain OctagonDomain [2018-09-15 20:08:32,340 INFO L101 FixpointEngine]: Starting fixpoint engine with domain OctagonDomain (maxUnwinding=3, maxParallelStates=2) [2018-09-15 20:08:34,109 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-15 20:08:34,111 INFO L272 AbstractInterpreter]: Visited 50 different actions 50 times. Never merged. Never widened. Never found a fixpoint. Largest state had 23 variables. [2018-09-15 20:08:34,134 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-15 20:08:35,053 INFO L232 lantSequenceWeakener]: Weakened 49 states. On average, predicates are now at 80.48% of their original sizes. [2018-09-15 20:08:35,054 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-15 20:08:35,348 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-15 20:08:35,350 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-15 20:08:35,350 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-09-15 20:08:35,350 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-15 20:08:35,357 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-09-15 20:08:35,364 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-09-15 20:08:35,365 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2018-09-15 20:08:35,367 INFO L87 Difference]: Start difference. First operand 255 states. Second operand 6 states. [2018-09-15 20:08:40,559 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-15 20:08:40,560 INFO L93 Difference]: Finished difference Result 693 states and 1229 transitions. [2018-09-15 20:08:40,563 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-09-15 20:08:40,565 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 51 [2018-09-15 20:08:40,566 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-15 20:08:40,584 INFO L225 Difference]: With dead ends: 693 [2018-09-15 20:08:40,584 INFO L226 Difference]: Without dead ends: 436 [2018-09-15 20:08:40,595 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 50 GetRequests, 46 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 20:08:40,616 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 436 states. [2018-09-15 20:08:40,680 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 436 to 434. [2018-09-15 20:08:40,683 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 434 states. [2018-09-15 20:08:40,687 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 434 states to 434 states and 615 transitions. [2018-09-15 20:08:40,689 INFO L78 Accepts]: Start accepts. Automaton has 434 states and 615 transitions. Word has length 51 [2018-09-15 20:08:40,690 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-15 20:08:40,690 INFO L480 AbstractCegarLoop]: Abstraction has 434 states and 615 transitions. [2018-09-15 20:08:40,690 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-09-15 20:08:40,690 INFO L276 IsEmpty]: Start isEmpty. Operand 434 states and 615 transitions. [2018-09-15 20:08:40,702 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 137 [2018-09-15 20:08:40,703 INFO L368 BasicCegarLoop]: Found error trace [2018-09-15 20:08:40,703 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 20:08:40,704 INFO L423 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-15 20:08:40,704 INFO L82 PathProgramCache]: Analyzing trace with hash -1438150893, now seen corresponding path program 1 times [2018-09-15 20:08:40,704 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-15 20:08:40,706 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 137 with the following transitions: [2018-09-15 20:08:40,707 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], [309], [311], [314], [322], [330], [338], [346], [354], [362], [370], [378], [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], [554], [948], [952], [956], [962], [966], [968], [973], [974], [975], [977], [978] [2018-09-15 20:08:40,723 INFO L148 AbstractInterpreter]: Using domain OctagonDomain [2018-09-15 20:08:40,723 INFO L101 FixpointEngine]: Starting fixpoint engine with domain OctagonDomain (maxUnwinding=3, maxParallelStates=2) [2018-09-15 20:08:49,233 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-15 20:08:49,233 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. [2018-09-15 20:08:49,267 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-15 20:08:51,581 INFO L232 lantSequenceWeakener]: Weakened 134 states. On average, predicates are now at 78.51% of their original sizes. [2018-09-15 20:08:51,582 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-15 20:08:54,465 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-15 20:08:54,465 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-15 20:08:54,466 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2018-09-15 20:08:54,466 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-15 20:08:54,468 INFO L459 AbstractCegarLoop]: Interpolant automaton has 14 states [2018-09-15 20:08:54,468 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2018-09-15 20:08:54,469 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=135, Unknown=0, NotChecked=0, Total=182 [2018-09-15 20:08:54,469 INFO L87 Difference]: Start difference. First operand 434 states and 615 transitions. Second operand 14 states. [2018-09-15 20:09:07,430 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-15 20:09:07,430 INFO L93 Difference]: Finished difference Result 1340 states and 2335 transitions. [2018-09-15 20:09:07,441 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2018-09-15 20:09:07,442 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 136 [2018-09-15 20:09:07,444 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-15 20:09:07,456 INFO L225 Difference]: With dead ends: 1340 [2018-09-15 20:09:07,456 INFO L226 Difference]: Without dead ends: 1095 [2018-09-15 20:09:07,460 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 148 GetRequests, 99 SyntacticMatches, 24 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 201 ImplicationChecksByTransitivity, 3.5s TimeCoverageRelationStatistics Valid=155, Invalid=547, Unknown=0, NotChecked=0, Total=702 [2018-09-15 20:09:07,461 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1095 states. [2018-09-15 20:09:07,519 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1095 to 850. [2018-09-15 20:09:07,520 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 850 states. [2018-09-15 20:09:07,524 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 850 states to 850 states and 1058 transitions. [2018-09-15 20:09:07,525 INFO L78 Accepts]: Start accepts. Automaton has 850 states and 1058 transitions. Word has length 136 [2018-09-15 20:09:07,526 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-15 20:09:07,526 INFO L480 AbstractCegarLoop]: Abstraction has 850 states and 1058 transitions. [2018-09-15 20:09:07,526 INFO L481 AbstractCegarLoop]: Interpolant automaton has 14 states. [2018-09-15 20:09:07,526 INFO L276 IsEmpty]: Start isEmpty. Operand 850 states and 1058 transitions. [2018-09-15 20:09:07,531 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 163 [2018-09-15 20:09:07,531 INFO L368 BasicCegarLoop]: Found error trace [2018-09-15 20:09:07,532 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 20:09:07,532 INFO L423 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-15 20:09:07,532 INFO L82 PathProgramCache]: Analyzing trace with hash -936361497, now seen corresponding path program 1 times [2018-09-15 20:09:07,533 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-15 20:09:07,533 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 163 with the following transitions: [2018-09-15 20:09:07,533 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], [309], [311], [314], [322], [330], [338], [346], [354], [362], [370], [378], [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], [658], [948], [952], [956], [962], [966], [968], [973], [974], [975], [977], [978] [2018-09-15 20:09:07,539 INFO L148 AbstractInterpreter]: Using domain OctagonDomain [2018-09-15 20:09:07,539 INFO L101 FixpointEngine]: Starting fixpoint engine with domain OctagonDomain (maxUnwinding=3, maxParallelStates=2) [2018-09-15 20:09:17,268 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-15 20:09:17,268 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. [2018-09-15 20:09:17,277 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-15 20:09:18,619 INFO L232 lantSequenceWeakener]: Weakened 160 states. On average, predicates are now at 78.31% of their original sizes. [2018-09-15 20:09:18,619 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-15 20:09:19,092 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-15 20:09:19,093 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-15 20:09:19,093 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2018-09-15 20:09:19,093 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-15 20:09:19,094 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2018-09-15 20:09:19,094 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2018-09-15 20:09:19,094 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=98, Unknown=0, NotChecked=0, Total=132 [2018-09-15 20:09:19,095 INFO L87 Difference]: Start difference. First operand 850 states and 1058 transitions. Second operand 12 states. [2018-09-15 20:09:26,093 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-15 20:09:26,093 INFO L93 Difference]: Finished difference Result 1283 states and 1842 transitions. [2018-09-15 20:09:26,096 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2018-09-15 20:09:26,096 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 162 [2018-09-15 20:09:26,097 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-15 20:09:26,108 INFO L225 Difference]: With dead ends: 1283 [2018-09-15 20:09:26,109 INFO L226 Difference]: Without dead ends: 1038 [2018-09-15 20:09:26,111 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 170 GetRequests, 151 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 65 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=97, Invalid=323, Unknown=0, NotChecked=0, Total=420 [2018-09-15 20:09:26,112 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1038 states. [2018-09-15 20:09:26,158 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1038 to 1035. [2018-09-15 20:09:26,159 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1035 states. [2018-09-15 20:09:26,164 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1035 states to 1035 states and 1256 transitions. [2018-09-15 20:09:26,165 INFO L78 Accepts]: Start accepts. Automaton has 1035 states and 1256 transitions. Word has length 162 [2018-09-15 20:09:26,165 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-15 20:09:26,166 INFO L480 AbstractCegarLoop]: Abstraction has 1035 states and 1256 transitions. [2018-09-15 20:09:26,166 INFO L481 AbstractCegarLoop]: Interpolant automaton has 12 states. [2018-09-15 20:09:26,166 INFO L276 IsEmpty]: Start isEmpty. Operand 1035 states and 1256 transitions. [2018-09-15 20:09:26,174 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 248 [2018-09-15 20:09:26,174 INFO L368 BasicCegarLoop]: Found error trace [2018-09-15 20:09:26,174 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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 20:09:26,175 INFO L423 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-15 20:09:26,175 INFO L82 PathProgramCache]: Analyzing trace with hash -1391747147, now seen corresponding path program 1 times [2018-09-15 20:09:26,175 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-15 20:09:26,176 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 248 with the following transitions: [2018-09-15 20:09:26,176 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], [309], [311], [314], [322], [330], [338], [346], [354], [362], [370], [378], [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], [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] [2018-09-15 20:09:26,186 INFO L148 AbstractInterpreter]: Using domain OctagonDomain [2018-09-15 20:09:26,186 INFO L101 FixpointEngine]: Starting fixpoint engine with domain OctagonDomain (maxUnwinding=3, maxParallelStates=2) [2018-09-15 20:09:50,621 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-15 20:09:50,621 INFO L272 AbstractInterpreter]: Visited 119 different actions 467 times. Merged at 7 different actions 24 times. Never widened. Found 5 fixpoints after 2 different actions. Largest state had 24 variables. [2018-09-15 20:09:50,629 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-15 20:09:52,815 INFO L232 lantSequenceWeakener]: Weakened 245 states. On average, predicates are now at 78.01% of their original sizes. [2018-09-15 20:09:52,816 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-15 20:09:56,500 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-15 20:09:56,501 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-15 20:09:56,501 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2018-09-15 20:09:56,501 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-15 20:09:56,502 INFO L459 AbstractCegarLoop]: Interpolant automaton has 16 states [2018-09-15 20:09:56,502 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2018-09-15 20:09:56,503 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=61, Invalid=179, Unknown=0, NotChecked=0, Total=240 [2018-09-15 20:09:56,503 INFO L87 Difference]: Start difference. First operand 1035 states and 1256 transitions. Second operand 16 states. [2018-09-15 20:10:10,714 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-15 20:10:10,714 INFO L93 Difference]: Finished difference Result 2597 states and 3738 transitions. [2018-09-15 20:10:10,720 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2018-09-15 20:10:10,721 INFO L78 Accepts]: Start accepts. Automaton has 16 states. Word has length 247 [2018-09-15 20:10:10,722 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-15 20:10:10,733 INFO L225 Difference]: With dead ends: 2597 [2018-09-15 20:10:10,733 INFO L226 Difference]: Without dead ends: 1936 [2018-09-15 20:10:10,737 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 264 GetRequests, 174 SyntacticMatches, 58 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 551 ImplicationChecksByTransitivity, 4.4s TimeCoverageRelationStatistics Valid=255, Invalid=867, Unknown=0, NotChecked=0, Total=1122 [2018-09-15 20:10:10,739 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1936 states. [2018-09-15 20:10:10,791 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1936 to 1469. [2018-09-15 20:10:10,791 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1469 states. [2018-09-15 20:10:10,797 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1469 states to 1469 states and 1742 transitions. [2018-09-15 20:10:10,797 INFO L78 Accepts]: Start accepts. Automaton has 1469 states and 1742 transitions. Word has length 247 [2018-09-15 20:10:10,798 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-15 20:10:10,798 INFO L480 AbstractCegarLoop]: Abstraction has 1469 states and 1742 transitions. [2018-09-15 20:10:10,798 INFO L481 AbstractCegarLoop]: Interpolant automaton has 16 states. [2018-09-15 20:10:10,798 INFO L276 IsEmpty]: Start isEmpty. Operand 1469 states and 1742 transitions. [2018-09-15 20:10:10,804 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 273 [2018-09-15 20:10:10,804 INFO L368 BasicCegarLoop]: Found error trace [2018-09-15 20:10:10,804 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2018-09-15 20:10:10,805 INFO L423 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-15 20:10:10,805 INFO L82 PathProgramCache]: Analyzing trace with hash 1922418930, now seen corresponding path program 1 times [2018-09-15 20:10:10,805 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-15 20:10:10,806 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 273 with the following transitions: [2018-09-15 20:10:10,806 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], [309], [311], [314], [322], [330], [338], [346], [354], [362], [370], [378], [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], [654], [655], [658], [948], [952], [956], [962], [966], [968], [973], [974], [975], [977], [978] [2018-09-15 20:10:10,815 INFO L148 AbstractInterpreter]: Using domain OctagonDomain [2018-09-15 20:10:10,815 INFO L101 FixpointEngine]: Starting fixpoint engine with domain OctagonDomain (maxUnwinding=3, maxParallelStates=2) [2018-09-15 20:10:20,254 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-09-15 20:10:35,257 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-15 20:10:35,257 INFO L272 AbstractInterpreter]: Visited 119 different actions 580 times. Merged at 7 different actions 29 times. Never widened. Found 5 fixpoints after 2 different actions. Largest state had 24 variables. [2018-09-15 20:10:35,266 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-15 20:10:37,753 INFO L232 lantSequenceWeakener]: Weakened 270 states. On average, predicates are now at 77.94% of their original sizes. [2018-09-15 20:10:37,754 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-15 20:10:38,135 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-15 20:10:38,135 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-15 20:10:38,135 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2018-09-15 20:10:38,135 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-15 20:10:38,136 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2018-09-15 20:10:38,136 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2018-09-15 20:10:38,136 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=79, Unknown=0, NotChecked=0, Total=110 [2018-09-15 20:10:38,137 INFO L87 Difference]: Start difference. First operand 1469 states and 1742 transitions. Second operand 11 states. [2018-09-15 20:10:48,944 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-15 20:10:48,945 INFO L93 Difference]: Finished difference Result 2091 states and 2894 transitions. [2018-09-15 20:10:48,954 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2018-09-15 20:10:48,955 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 272 [2018-09-15 20:10:48,956 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-15 20:10:48,968 INFO L225 Difference]: With dead ends: 2091 [2018-09-15 20:10:48,968 INFO L226 Difference]: Without dead ends: 1846 [2018-09-15 20:10:48,971 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 282 GetRequests, 262 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 71 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=113, Invalid=349, Unknown=0, NotChecked=0, Total=462 [2018-09-15 20:10:48,973 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1846 states. [2018-09-15 20:10:49,044 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1846 to 1839. [2018-09-15 20:10:49,045 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1839 states. [2018-09-15 20:10:49,051 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1839 states to 1839 states and 2176 transitions. [2018-09-15 20:10:49,051 INFO L78 Accepts]: Start accepts. Automaton has 1839 states and 2176 transitions. Word has length 272 [2018-09-15 20:10:49,052 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-15 20:10:49,052 INFO L480 AbstractCegarLoop]: Abstraction has 1839 states and 2176 transitions. [2018-09-15 20:10:49,052 INFO L481 AbstractCegarLoop]: Interpolant automaton has 11 states. [2018-09-15 20:10:49,052 INFO L276 IsEmpty]: Start isEmpty. Operand 1839 states and 2176 transitions. [2018-09-15 20:10:49,061 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 351 [2018-09-15 20:10:49,061 INFO L368 BasicCegarLoop]: Found error trace [2018-09-15 20:10:49,061 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-15 20:10:49,062 INFO L423 AbstractCegarLoop]: === Iteration 6 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-15 20:10:49,062 INFO L82 PathProgramCache]: Analyzing trace with hash 1548757629, now seen corresponding path program 1 times [2018-09-15 20:10:49,062 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-15 20:10:49,062 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 351 with the following transitions: [2018-09-15 20:10:49,063 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], [309], [311], [314], [322], [330], [338], [346], [354], [362], [370], [378], [386], [394], [402], [410], [418], [426], [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] [2018-09-15 20:10:49,074 INFO L148 AbstractInterpreter]: Using domain OctagonDomain [2018-09-15 20:10:49,075 INFO L101 FixpointEngine]: Starting fixpoint engine with domain OctagonDomain (maxUnwinding=3, maxParallelStates=2) [2018-09-15 20:10:58,937 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-09-15 20:11:21,658 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-15 20:11:21,659 INFO L272 AbstractInterpreter]: Visited 120 different actions 827 times. Merged at 8 different actions 53 times. Widened at 1 different actions 2 times. Found 11 fixpoints after 2 different actions. Largest state had 24 variables. [2018-09-15 20:11:21,666 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-15 20:11:23,124 INFO L232 lantSequenceWeakener]: Weakened 348 states. On average, predicates are now at 77.82% of their original sizes. [2018-09-15 20:11:23,125 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-15 20:11:23,383 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-15 20:11:23,384 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-15 20:11:23,384 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2018-09-15 20:11:23,384 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-15 20:11:23,385 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2018-09-15 20:11:23,385 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2018-09-15 20:11:23,385 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2018-09-15 20:11:23,385 INFO L87 Difference]: Start difference. First operand 1839 states and 2176 transitions. Second operand 10 states. [2018-09-15 20:11:29,477 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-15 20:11:29,478 INFO L93 Difference]: Finished difference Result 2866 states and 3655 transitions. [2018-09-15 20:11:29,478 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2018-09-15 20:11:29,478 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 350 [2018-09-15 20:11:29,479 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-15 20:11:29,489 INFO L225 Difference]: With dead ends: 2866 [2018-09-15 20:11:29,490 INFO L226 Difference]: Without dead ends: 2251 [2018-09-15 20:11:29,493 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 357 GetRequests, 341 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 41 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=74, Invalid=232, Unknown=0, NotChecked=0, Total=306 [2018-09-15 20:11:29,495 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2251 states. [2018-09-15 20:11:29,567 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2251 to 2235. [2018-09-15 20:11:29,567 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2235 states. [2018-09-15 20:11:29,574 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2235 states to 2235 states and 2656 transitions. [2018-09-15 20:11:29,574 INFO L78 Accepts]: Start accepts. Automaton has 2235 states and 2656 transitions. Word has length 350 [2018-09-15 20:11:29,575 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-15 20:11:29,575 INFO L480 AbstractCegarLoop]: Abstraction has 2235 states and 2656 transitions. [2018-09-15 20:11:29,575 INFO L481 AbstractCegarLoop]: Interpolant automaton has 10 states. [2018-09-15 20:11:29,576 INFO L276 IsEmpty]: Start isEmpty. Operand 2235 states and 2656 transitions. [2018-09-15 20:11:29,586 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 376 [2018-09-15 20:11:29,586 INFO L368 BasicCegarLoop]: Found error trace [2018-09-15 20:11:29,586 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, 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, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-15 20:11:29,587 INFO L423 AbstractCegarLoop]: === Iteration 7 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-15 20:11:29,587 INFO L82 PathProgramCache]: Analyzing trace with hash -871409050, now seen corresponding path program 1 times [2018-09-15 20:11:29,587 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-15 20:11:29,587 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 376 with the following transitions: [2018-09-15 20:11:29,588 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], [309], [311], [314], [322], [330], [338], [346], [354], [362], [370], [378], [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], [626], [627], [631], [635], [639], [643], [647], [651], [654], [655], [658], [948], [952], [956], [962], [966], [968], [973], [974], [975], [977], [978] [2018-09-15 20:11:29,590 INFO L148 AbstractInterpreter]: Using domain OctagonDomain [2018-09-15 20:11:29,591 INFO L101 FixpointEngine]: Starting fixpoint engine with domain OctagonDomain (maxUnwinding=3, maxParallelStates=2) [2018-09-15 20:11:38,943 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-09-15 20:12:02,522 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-15 20:12:02,523 INFO L272 AbstractInterpreter]: Visited 120 different actions 829 times. Merged at 8 different actions 55 times. Widened at 1 different actions 2 times. Found 12 fixpoints after 2 different actions. Largest state had 24 variables. [2018-09-15 20:12:02,532 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-15 20:12:04,802 INFO L232 lantSequenceWeakener]: Weakened 373 states. On average, predicates are now at 77.79% of their original sizes. [2018-09-15 20:12:04,802 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-15 20:12:05,049 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-15 20:12:05,049 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-15 20:12:05,050 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2018-09-15 20:12:05,050 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-15 20:12:05,050 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2018-09-15 20:12:05,050 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2018-09-15 20:12:05,051 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2018-09-15 20:12:05,051 INFO L87 Difference]: Start difference. First operand 2235 states and 2656 transitions. Second operand 10 states. [2018-09-15 20:12:11,378 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-15 20:12:11,378 INFO L93 Difference]: Finished difference Result 3476 states and 4405 transitions. [2018-09-15 20:12:11,380 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2018-09-15 20:12:11,380 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 375 [2018-09-15 20:12:11,381 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-15 20:12:11,391 INFO L225 Difference]: With dead ends: 3476 [2018-09-15 20:12:11,392 INFO L226 Difference]: Without dead ends: 2467 [2018-09-15 20:12:11,395 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 382 GetRequests, 366 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 41 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=74, Invalid=232, Unknown=0, NotChecked=0, Total=306 [2018-09-15 20:12:11,398 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2467 states. [2018-09-15 20:12:11,477 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2467 to 2446. [2018-09-15 20:12:11,477 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2446 states. [2018-09-15 20:12:11,485 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2446 states to 2446 states and 2920 transitions. [2018-09-15 20:12:11,486 INFO L78 Accepts]: Start accepts. Automaton has 2446 states and 2920 transitions. Word has length 375 [2018-09-15 20:12:11,486 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-15 20:12:11,486 INFO L480 AbstractCegarLoop]: Abstraction has 2446 states and 2920 transitions. [2018-09-15 20:12:11,487 INFO L481 AbstractCegarLoop]: Interpolant automaton has 10 states. [2018-09-15 20:12:11,487 INFO L276 IsEmpty]: Start isEmpty. Operand 2446 states and 2920 transitions. [2018-09-15 20:12:11,494 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 391 [2018-09-15 20:12:11,494 INFO L368 BasicCegarLoop]: Found error trace [2018-09-15 20:12:11,495 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, 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, 3, 3, 3, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-15 20:12:11,495 INFO L423 AbstractCegarLoop]: === Iteration 8 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-15 20:12:11,496 INFO L82 PathProgramCache]: Analyzing trace with hash 2134296909, now seen corresponding path program 1 times [2018-09-15 20:12:11,496 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-15 20:12:11,496 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 391 with the following transitions: [2018-09-15 20:12:11,496 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], [309], [311], [314], [322], [330], [338], [346], [354], [362], [370], [378], [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], [654], [655], [658], [659], [663], [667], [671], [675], [679], [683], [686], [948], [952], [956], [962], [966], [968], [973], [974], [975], [977], [978] [2018-09-15 20:12:11,500 INFO L148 AbstractInterpreter]: Using domain OctagonDomain [2018-09-15 20:12:11,500 INFO L101 FixpointEngine]: Starting fixpoint engine with domain OctagonDomain (maxUnwinding=3, maxParallelStates=2) [2018-09-15 20:12:21,475 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-09-15 20:12:44,795 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-15 20:12:44,795 INFO L272 AbstractInterpreter]: Visited 127 different actions 877 times. Merged at 8 different actions 54 times. Widened at 1 different actions 2 times. Found 12 fixpoints after 2 different actions. Largest state had 24 variables. [2018-09-15 20:12:44,804 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates Received shutdown request... [2018-09-15 20:12:46,471 INFO L232 lantSequenceWeakener]: Weakened 388 states. On average, predicates are now at 77.77% of their original sizes. [2018-09-15 20:12:46,471 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-15 20:12:46,488 WARN L549 AbstractCegarLoop]: Verification canceled [2018-09-15 20:12:46,492 WARN L206 ceAbstractionStarter]: Timeout [2018-09-15 20:12:46,492 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 15.09 08:12:46 BoogieIcfgContainer [2018-09-15 20:12:46,492 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-09-15 20:12:46,493 INFO L168 Benchmark]: Toolchain (without parser) took 259923.21 ms. Allocated memory was 1.5 GB in the beginning and 4.1 GB in the end (delta: 2.6 GB). Free memory was 1.4 GB in the beginning and 2.8 GB in the end (delta: -1.5 GB). Peak memory consumption was 1.2 GB. Max. memory is 7.1 GB. [2018-09-15 20:12:46,495 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 20:12:46,496 INFO L168 Benchmark]: CACSL2BoogieTranslator took 867.62 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: 42.3 MB). Peak memory consumption was 42.3 MB. Max. memory is 7.1 GB. [2018-09-15 20:12:46,496 INFO L168 Benchmark]: Boogie Procedure Inliner took 162.11 ms. Allocated memory is still 1.5 GB. Free memory was 1.3 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 20:12:46,497 INFO L168 Benchmark]: Boogie Preprocessor took 341.27 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 748.2 MB). Free memory was 1.3 GB in the beginning and 2.2 GB in the end (delta: -845.4 MB). Peak memory consumption was 33.0 MB. Max. memory is 7.1 GB. [2018-09-15 20:12:46,498 INFO L168 Benchmark]: RCFGBuilder took 4183.54 ms. Allocated memory is still 2.3 GB. Free memory was 2.2 GB in the beginning and 2.0 GB in the end (delta: 142.4 MB). Peak memory consumption was 142.4 MB. Max. memory is 7.1 GB. [2018-09-15 20:12:46,499 INFO L168 Benchmark]: TraceAbstraction took 254361.67 ms. Allocated memory was 2.3 GB in the beginning and 4.1 GB in the end (delta: 1.9 GB). Free memory was 2.0 GB in the beginning and 2.8 GB in the end (delta: -800.1 MB). Peak memory consumption was 1.1 GB. Max. memory is 7.1 GB. [2018-09-15 20:12:46,504 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 867.62 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: 42.3 MB). Peak memory consumption was 42.3 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 162.11 ms. Allocated memory is still 1.5 GB. Free memory was 1.3 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 341.27 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 748.2 MB). Free memory was 1.3 GB in the beginning and 2.2 GB in the end (delta: -845.4 MB). Peak memory consumption was 33.0 MB. Max. memory is 7.1 GB. * RCFGBuilder took 4183.54 ms. Allocated memory is still 2.3 GB. Free memory was 2.2 GB in the beginning and 2.0 GB in the end (delta: 142.4 MB). Peak memory consumption was 142.4 MB. Max. memory is 7.1 GB. * TraceAbstraction took 254361.67 ms. Allocated memory was 2.3 GB in the beginning and 4.1 GB in the end (delta: 1.9 GB). Free memory was 2.0 GB in the beginning and 2.8 GB in the end (delta: -800.1 MB). Peak memory consumption was 1.1 GB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResultAtElement [Line: 136]: Timeout (TraceAbstraction) Unable to prove that call of __VERIFIER_error() unreachable (line 136). Cancelled while BasicCegarLoop was analyzing trace of length 391 with TraceHistMax 4, while AbsIntCurrentIteration was generating AI predicates, while PredicateComparison was comparing new predicate (quantifier-free) to 3 known predicates. - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 255 locations, 1 error locations. TIMEOUT Result, 254.2s OverallTime, 8 OverallIterations, 4 TraceHistogramMax, 62.7s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 1610 SDtfs, 9749 SDslu, 1672 SDs, 0 SdLazy, 13430 SolverSat, 2740 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 54.5s Time, PredicateUnifierStatistics: 14 DeclaredPredicates, 1653 GetRequests, 1439 SyntacticMatches, 82 SemanticMatches, 132 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 971 ImplicationChecksByTransitivity, 10.9s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=2446occurred in iteration=7, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 167.9s AbstIntTime, 8 AbstIntIterations, 8 AbstIntStrong, 0.9953484765097308 AbsIntWeakeningRatio, 0.10227848101265823 AbsIntAvgWeakeningVarsNumRemoved, 530.5392405063291 AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.5s AutomataMinimizationTime, 7 MinimizatonAttempts, 761 StatesRemovedByMinimization, 7 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_label35_true-unreach-call_false-termination.c_svcomp-Reach-64bit-ToothlessTaipan_OCT-OldIcfg.epf_AutomizerCInline.xml/Csv-Benchmark-0-2018-09-15_20-12-46-522.csv Written .csv to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/csv/Problem14_label35_true-unreach-call_false-termination.c_svcomp-Reach-64bit-ToothlessTaipan_OCT-OldIcfg.epf_AutomizerCInline.xml/Csv-TraceAbstractionBenchmarks-0-2018-09-15_20-12-46-522.csv Completed graceful shutdown