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_label50_true-unreach-call_false-termination.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-69f5bdd-m [2018-09-19 04:10:41,635 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-09-19 04:10:41,637 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-09-19 04:10:41,651 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-09-19 04:10:41,651 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-09-19 04:10:41,653 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-09-19 04:10:41,654 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-09-19 04:10:41,656 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-09-19 04:10:41,658 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-09-19 04:10:41,658 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-09-19 04:10:41,659 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-09-19 04:10:41,660 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-09-19 04:10:41,661 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-09-19 04:10:41,662 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-09-19 04:10:41,663 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-09-19 04:10:41,664 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-09-19 04:10:41,664 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-09-19 04:10:41,666 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-09-19 04:10:41,668 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-09-19 04:10:41,670 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-09-19 04:10:41,671 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-09-19 04:10:41,672 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-09-19 04:10:41,674 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-09-19 04:10:41,675 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-09-19 04:10:41,675 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-09-19 04:10:41,676 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-09-19 04:10:41,677 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-09-19 04:10:41,677 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-09-19 04:10:41,678 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-09-19 04:10:41,679 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-09-19 04:10:41,680 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-09-19 04:10:41,680 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... 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[2018-09-19 04:10:41,683 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 04:10:41,704 INFO L110 SettingsManager]: Loading preferences was successful [2018-09-19 04:10:41,706 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-09-19 04:10:41,706 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-09-19 04:10:41,707 INFO L133 SettingsManager]: * User list type=DISABLED [2018-09-19 04:10:41,707 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-09-19 04:10:41,707 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-09-19 04:10:41,707 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-09-19 04:10:41,708 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-09-19 04:10:41,708 INFO L133 SettingsManager]: * Log string format=TERM [2018-09-19 04:10:41,708 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-09-19 04:10:41,708 INFO L133 SettingsManager]: * Parallel states before merging=1 [2018-09-19 04:10:41,709 INFO L133 SettingsManager]: * Interval Domain=false [2018-09-19 04:10:41,709 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-09-19 04:10:41,709 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-09-19 04:10:41,710 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-09-19 04:10:41,710 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-09-19 04:10:41,710 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-09-19 04:10:41,710 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-09-19 04:10:41,712 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-09-19 04:10:41,712 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-09-19 04:10:41,712 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-09-19 04:10:41,713 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-09-19 04:10:41,713 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-09-19 04:10:41,713 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-09-19 04:10:41,713 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-09-19 04:10:41,713 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-09-19 04:10:41,714 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-09-19 04:10:41,714 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-09-19 04:10:41,714 INFO L133 SettingsManager]: * Trace refinement strategy=TOOTHLESS_TAIPAN [2018-09-19 04:10:41,714 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-09-19 04:10:41,714 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-09-19 04:10:41,714 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-09-19 04:10:41,715 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-09-19 04:10:41,715 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-09-19 04:10:41,777 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-09-19 04:10:41,790 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-09-19 04:10:41,794 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-09-19 04:10:41,796 INFO L271 PluginConnector]: Initializing CDTParser... [2018-09-19 04:10:41,796 INFO L276 PluginConnector]: CDTParser initialized [2018-09-19 04:10:41,797 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem14_label50_true-unreach-call_false-termination.c [2018-09-19 04:10:42,147 INFO L221 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/fed73969c/d48722f8937e440392e6cc1db33f3427/FLAG52944263c [2018-09-19 04:10:42,422 INFO L277 CDTParser]: Found 1 translation units. [2018-09-19 04:10:42,426 INFO L159 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem14_label50_true-unreach-call_false-termination.c [2018-09-19 04:10:42,447 INFO L325 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/fed73969c/d48722f8937e440392e6cc1db33f3427/FLAG52944263c [2018-09-19 04:10:42,471 INFO L333 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/fed73969c/d48722f8937e440392e6cc1db33f3427 [2018-09-19 04:10:42,485 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-09-19 04:10:42,491 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-09-19 04:10:42,492 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-09-19 04:10:42,492 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-09-19 04:10:42,502 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-09-19 04:10:42,503 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.09 04:10:42" (1/1) ... [2018-09-19 04:10:42,506 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 04:10:42, skipping insertion in model container [2018-09-19 04:10:42,507 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.09 04:10:42" (1/1) ... [2018-09-19 04:10:42,519 INFO L160 ieTranslatorObserver]: Starting translation in SV-COMP mode [2018-09-19 04:10:43,136 INFO L170 PostProcessor]: Settings: Checked method=main [2018-09-19 04:10:43,160 INFO L424 MainDispatcher]: Starting main dispatcher in SV-COMP mode [2018-09-19 04:10:43,326 INFO L170 PostProcessor]: Settings: Checked method=main [2018-09-19 04:10:43,391 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 04:10:43 WrapperNode [2018-09-19 04:10:43,392 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-09-19 04:10:43,393 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-09-19 04:10:43,393 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-09-19 04:10:43,393 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-09-19 04:10:43,404 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 04:10:43" (1/1) ... [2018-09-19 04:10:43,446 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 04:10:43" (1/1) ... [2018-09-19 04:10:43,536 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-09-19 04:10:43,537 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-09-19 04:10:43,537 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-09-19 04:10:43,537 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-09-19 04:10:43,799 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 04:10:43" (1/1) ... [2018-09-19 04:10:43,800 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 04:10:43" (1/1) ... [2018-09-19 04:10:43,808 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 04:10:43" (1/1) ... [2018-09-19 04:10:43,808 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 04:10:43" (1/1) ... [2018-09-19 04:10:43,856 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 04:10:43" (1/1) ... [2018-09-19 04:10:43,884 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 04:10:43" (1/1) ... [2018-09-19 04:10:43,900 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 04:10:43" (1/1) ... [2018-09-19 04:10:43,908 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-09-19 04:10:43,909 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-09-19 04:10:43,909 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-09-19 04:10:43,910 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-09-19 04:10:43,911 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 04:10:43" (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 04:10:43,995 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-09-19 04:10:43,995 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-09-19 04:10:43,996 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2018-09-19 04:10:43,996 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2018-09-19 04:10:43,996 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-09-19 04:10:43,996 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-09-19 04:10:43,996 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-09-19 04:10:43,997 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-09-19 04:10:48,104 INFO L356 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-09-19 04:10:48,105 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.09 04:10:48 BoogieIcfgContainer [2018-09-19 04:10:48,105 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-09-19 04:10:48,107 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-09-19 04:10:48,107 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-09-19 04:10:48,111 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-09-19 04:10:48,111 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.09 04:10:42" (1/3) ... [2018-09-19 04:10:48,112 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 04:10:48, skipping insertion in model container [2018-09-19 04:10:48,112 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 04:10:43" (2/3) ... [2018-09-19 04:10:48,113 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 04:10:48, skipping insertion in model container [2018-09-19 04:10:48,113 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.09 04:10:48" (3/3) ... [2018-09-19 04:10:48,115 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem14_label50_true-unreach-call_false-termination.c [2018-09-19 04:10:48,126 INFO L137 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-09-19 04:10:48,137 INFO L149 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-09-19 04:10:48,200 INFO L130 ementStrategyFactory]: Using default assertion order modulation [2018-09-19 04:10:48,201 INFO L381 AbstractCegarLoop]: Interprodecural is true [2018-09-19 04:10:48,201 INFO L382 AbstractCegarLoop]: Hoare is true [2018-09-19 04:10:48,201 INFO L383 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-09-19 04:10:48,201 INFO L384 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-09-19 04:10:48,202 INFO L385 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-09-19 04:10:48,202 INFO L386 AbstractCegarLoop]: Difference is false [2018-09-19 04:10:48,202 INFO L387 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-09-19 04:10:48,203 INFO L392 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-09-19 04:10:48,240 INFO L276 IsEmpty]: Start isEmpty. Operand 255 states. [2018-09-19 04:10:48,252 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2018-09-19 04:10:48,253 INFO L368 BasicCegarLoop]: Found error trace [2018-09-19 04:10:48,256 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] [2018-09-19 04:10:48,257 INFO L423 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-19 04:10:48,263 INFO L82 PathProgramCache]: Analyzing trace with hash -50157732, now seen corresponding path program 1 times [2018-09-19 04:10:48,267 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-19 04:10:48,269 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 45 with the following transitions: [2018-09-19 04:10:48,272 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], [253], [255], [952], [956], [962], [966], [973], [974], [975], [977] [2018-09-19 04:10:48,353 INFO L148 AbstractInterpreter]: Using domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-09-19 04:10:48,354 INFO L101 FixpointEngine]: Starting fixpoint engine with domain CompoundDomain (maxUnwinding=3, maxParallelStates=1) [2018-09-19 04:10:49,606 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-19 04:10:49,608 INFO L272 AbstractInterpreter]: Visited 43 different actions 43 times. Never merged. Never widened. Never found a fixpoint. Largest state had 23 variables. [2018-09-19 04:10:49,625 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-19 04:10:50,263 INFO L232 lantSequenceWeakener]: Weakened 42 states. On average, predicates are now at 80.26% of their original sizes. [2018-09-19 04:10:50,263 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-19 04:10:50,574 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-19 04:10:50,576 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-19 04:10:50,576 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-09-19 04:10:50,577 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-19 04:10:50,585 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-09-19 04:10:50,593 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-09-19 04:10:50,594 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2018-09-19 04:10:50,597 INFO L87 Difference]: Start difference. First operand 255 states. Second operand 6 states. [2018-09-19 04:10:55,584 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-19 04:10:55,584 INFO L93 Difference]: Finished difference Result 693 states and 1229 transitions. [2018-09-19 04:10:55,585 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-09-19 04:10:55,586 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 44 [2018-09-19 04:10:55,587 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-19 04:10:55,610 INFO L225 Difference]: With dead ends: 693 [2018-09-19 04:10:55,610 INFO L226 Difference]: Without dead ends: 436 [2018-09-19 04:10:55,618 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 43 GetRequests, 39 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 04:10:55,640 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 436 states. [2018-09-19 04:10:55,702 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 436 to 434. [2018-09-19 04:10:55,704 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 434 states. [2018-09-19 04:10:55,707 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 434 states to 434 states and 615 transitions. [2018-09-19 04:10:55,709 INFO L78 Accepts]: Start accepts. Automaton has 434 states and 615 transitions. Word has length 44 [2018-09-19 04:10:55,709 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-19 04:10:55,710 INFO L480 AbstractCegarLoop]: Abstraction has 434 states and 615 transitions. [2018-09-19 04:10:55,710 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-09-19 04:10:55,710 INFO L276 IsEmpty]: Start isEmpty. Operand 434 states and 615 transitions. [2018-09-19 04:10:55,716 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2018-09-19 04:10:55,717 INFO L368 BasicCegarLoop]: Found error trace [2018-09-19 04:10:55,717 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 04:10:55,718 INFO L423 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-19 04:10:55,718 INFO L82 PathProgramCache]: Analyzing trace with hash -387762869, now seen corresponding path program 1 times [2018-09-19 04:10:55,719 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-19 04:10:55,719 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 130 with the following transitions: [2018-09-19 04:10:55,720 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], [253], [255], [258], [266], [274], [282], [290], [298], [306], [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] [2018-09-19 04:10:55,727 INFO L148 AbstractInterpreter]: Using domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-09-19 04:10:55,728 INFO L101 FixpointEngine]: Starting fixpoint engine with domain CompoundDomain (maxUnwinding=3, maxParallelStates=1) [2018-09-19 04:11:00,047 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-19 04:11:00,048 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 04:11:00,056 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-19 04:11:01,048 INFO L232 lantSequenceWeakener]: Weakened 127 states. On average, predicates are now at 78.33% of their original sizes. [2018-09-19 04:11:01,049 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-19 04:11:01,722 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-19 04:11:01,723 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-19 04:11:01,723 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2018-09-19 04:11:01,723 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-19 04:11:01,725 INFO L459 AbstractCegarLoop]: Interpolant automaton has 14 states [2018-09-19 04:11:01,726 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2018-09-19 04:11:01,726 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=135, Unknown=0, NotChecked=0, Total=182 [2018-09-19 04:11:01,727 INFO L87 Difference]: Start difference. First operand 434 states and 615 transitions. Second operand 14 states. [2018-09-19 04:11:15,755 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-19 04:11:15,756 INFO L93 Difference]: Finished difference Result 1340 states and 2335 transitions. [2018-09-19 04:11:15,757 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2018-09-19 04:11:15,757 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 129 [2018-09-19 04:11:15,759 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-19 04:11:15,767 INFO L225 Difference]: With dead ends: 1340 [2018-09-19 04:11:15,767 INFO L226 Difference]: Without dead ends: 1095 [2018-09-19 04:11:15,771 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 141 GetRequests, 116 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 04:11:15,773 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1095 states. [2018-09-19 04:11:15,827 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1095 to 850. [2018-09-19 04:11:15,827 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 850 states. [2018-09-19 04:11:15,832 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 850 states to 850 states and 1058 transitions. [2018-09-19 04:11:15,833 INFO L78 Accepts]: Start accepts. Automaton has 850 states and 1058 transitions. Word has length 129 [2018-09-19 04:11:15,834 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-19 04:11:15,834 INFO L480 AbstractCegarLoop]: Abstraction has 850 states and 1058 transitions. [2018-09-19 04:11:15,834 INFO L481 AbstractCegarLoop]: Interpolant automaton has 14 states. [2018-09-19 04:11:15,834 INFO L276 IsEmpty]: Start isEmpty. Operand 850 states and 1058 transitions. [2018-09-19 04:11:15,839 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 156 [2018-09-19 04:11:15,840 INFO L368 BasicCegarLoop]: Found error trace [2018-09-19 04:11:15,840 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 04:11:15,840 INFO L423 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-19 04:11:15,841 INFO L82 PathProgramCache]: Analyzing trace with hash 2020577719, now seen corresponding path program 1 times [2018-09-19 04:11:15,841 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-19 04:11:15,841 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 156 with the following transitions: [2018-09-19 04:11:15,842 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], [253], [255], [258], [266], [274], [282], [290], [298], [306], [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] [2018-09-19 04:11:15,849 INFO L148 AbstractInterpreter]: Using domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-09-19 04:11:15,849 INFO L101 FixpointEngine]: Starting fixpoint engine with domain CompoundDomain (maxUnwinding=3, maxParallelStates=1) [2018-09-19 04:11:21,831 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-19 04:11:21,831 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 04:11:21,837 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-19 04:11:23,059 INFO L232 lantSequenceWeakener]: Weakened 153 states. On average, predicates are now at 78.15% of their original sizes. [2018-09-19 04:11:23,060 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-19 04:11:23,605 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-19 04:11:23,606 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-19 04:11:23,606 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2018-09-19 04:11:23,606 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-19 04:11:23,607 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2018-09-19 04:11:23,607 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2018-09-19 04:11:23,608 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=81, Unknown=0, NotChecked=0, Total=110 [2018-09-19 04:11:23,608 INFO L87 Difference]: Start difference. First operand 850 states and 1058 transitions. Second operand 11 states. [2018-09-19 04:11:31,807 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-19 04:11:31,808 INFO L93 Difference]: Finished difference Result 1283 states and 1842 transitions. [2018-09-19 04:11:31,815 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2018-09-19 04:11:31,815 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 155 [2018-09-19 04:11:31,817 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-19 04:11:31,827 INFO L225 Difference]: With dead ends: 1283 [2018-09-19 04:11:31,827 INFO L226 Difference]: Without dead ends: 1038 [2018-09-19 04:11:31,829 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 162 GetRequests, 145 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=83, Invalid=259, Unknown=0, NotChecked=0, Total=342 [2018-09-19 04:11:31,830 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1038 states. [2018-09-19 04:11:31,874 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1038 to 1035. [2018-09-19 04:11:31,874 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1035 states. [2018-09-19 04:11:31,880 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1035 states to 1035 states and 1256 transitions. [2018-09-19 04:11:31,880 INFO L78 Accepts]: Start accepts. Automaton has 1035 states and 1256 transitions. Word has length 155 [2018-09-19 04:11:31,881 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-19 04:11:31,881 INFO L480 AbstractCegarLoop]: Abstraction has 1035 states and 1256 transitions. [2018-09-19 04:11:31,881 INFO L481 AbstractCegarLoop]: Interpolant automaton has 11 states. [2018-09-19 04:11:31,881 INFO L276 IsEmpty]: Start isEmpty. Operand 1035 states and 1256 transitions. [2018-09-19 04:11:31,901 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 241 [2018-09-19 04:11:31,902 INFO L368 BasicCegarLoop]: Found error trace [2018-09-19 04:11:31,902 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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 04:11:31,902 INFO L423 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-19 04:11:31,903 INFO L82 PathProgramCache]: Analyzing trace with hash -1594197016, now seen corresponding path program 1 times [2018-09-19 04:11:31,903 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-19 04:11:31,903 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 241 with the following transitions: [2018-09-19 04:11:31,904 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], [253], [255], [258], [266], [274], [282], [290], [298], [306], [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] [2018-09-19 04:11:31,909 INFO L148 AbstractInterpreter]: Using domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-09-19 04:11:31,910 INFO L101 FixpointEngine]: Starting fixpoint engine with domain CompoundDomain (maxUnwinding=3, maxParallelStates=1) [2018-09-19 04:11:40,806 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-19 04:11:40,806 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 04:11:40,812 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-19 04:11:42,362 INFO L232 lantSequenceWeakener]: Weakened 238 states. On average, predicates are now at 77.88% of their original sizes. [2018-09-19 04:11:42,363 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-19 04:11:43,712 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-19 04:11:43,712 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-19 04:11:43,713 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2018-09-19 04:11:43,713 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-19 04:11:43,714 INFO L459 AbstractCegarLoop]: Interpolant automaton has 15 states [2018-09-19 04:11:43,714 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2018-09-19 04:11:43,714 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=55, Invalid=155, Unknown=0, NotChecked=0, Total=210 [2018-09-19 04:11:43,714 INFO L87 Difference]: Start difference. First operand 1035 states and 1256 transitions. Second operand 15 states. [2018-09-19 04:11:54,622 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-19 04:11:54,622 INFO L93 Difference]: Finished difference Result 2597 states and 3738 transitions. [2018-09-19 04:11:54,624 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2018-09-19 04:11:54,624 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 240 [2018-09-19 04:11:54,625 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-19 04:11:54,637 INFO L225 Difference]: With dead ends: 2597 [2018-09-19 04:11:54,637 INFO L226 Difference]: Without dead ends: 1936 [2018-09-19 04:11:54,642 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 255 GetRequests, 226 SyntacticMatches, 0 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 194 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=208, Invalid=722, Unknown=0, NotChecked=0, Total=930 [2018-09-19 04:11:54,643 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1936 states. [2018-09-19 04:11:54,693 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1936 to 1469. [2018-09-19 04:11:54,693 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1469 states. [2018-09-19 04:11:54,699 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1469 states to 1469 states and 1742 transitions. [2018-09-19 04:11:54,699 INFO L78 Accepts]: Start accepts. Automaton has 1469 states and 1742 transitions. Word has length 240 [2018-09-19 04:11:54,700 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-19 04:11:54,700 INFO L480 AbstractCegarLoop]: Abstraction has 1469 states and 1742 transitions. [2018-09-19 04:11:54,700 INFO L481 AbstractCegarLoop]: Interpolant automaton has 15 states. [2018-09-19 04:11:54,700 INFO L276 IsEmpty]: Start isEmpty. Operand 1469 states and 1742 transitions. [2018-09-19 04:11:54,706 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 266 [2018-09-19 04:11:54,706 INFO L368 BasicCegarLoop]: Found error trace [2018-09-19 04:11:54,706 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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 04:11:54,707 INFO L423 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-19 04:11:54,707 INFO L82 PathProgramCache]: Analyzing trace with hash 1987392715, now seen corresponding path program 1 times [2018-09-19 04:11:54,707 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-19 04:11:54,707 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 266 with the following transitions: [2018-09-19 04:11:54,708 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], [253], [255], [258], [266], [274], [282], [290], [298], [306], [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] [2018-09-19 04:11:54,731 INFO L148 AbstractInterpreter]: Using domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-09-19 04:11:54,731 INFO L101 FixpointEngine]: Starting fixpoint engine with domain CompoundDomain (maxUnwinding=3, maxParallelStates=1) [2018-09-19 04:12:00,000 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-09-19 04:12:12,351 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-19 04:12:12,351 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 04:12:12,358 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-19 04:12:14,124 INFO L232 lantSequenceWeakener]: Weakened 263 states. On average, predicates are now at 77.82% of their original sizes. [2018-09-19 04:12:14,124 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-19 04:12:14,678 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-19 04:12:14,678 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-19 04:12:14,678 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2018-09-19 04:12:14,679 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-19 04:12:14,680 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2018-09-19 04:12:14,680 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2018-09-19 04:12:14,680 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2018-09-19 04:12:14,681 INFO L87 Difference]: Start difference. First operand 1469 states and 1742 transitions. Second operand 10 states. [2018-09-19 04:12:19,341 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-19 04:12:19,342 INFO L93 Difference]: Finished difference Result 1908 states and 2532 transitions. [2018-09-19 04:12:19,348 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2018-09-19 04:12:19,349 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 265 [2018-09-19 04:12:19,350 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-19 04:12:19,358 INFO L225 Difference]: With dead ends: 1908 [2018-09-19 04:12:19,359 INFO L226 Difference]: Without dead ends: 1663 [2018-09-19 04:12:19,361 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 272 GetRequests, 256 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 41 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=74, Invalid=232, Unknown=0, NotChecked=0, Total=306 [2018-09-19 04:12:19,363 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1663 states. [2018-09-19 04:12:19,407 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1663 to 1656. [2018-09-19 04:12:19,408 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1656 states. [2018-09-19 04:12:19,413 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1656 states to 1656 states and 1960 transitions. [2018-09-19 04:12:19,413 INFO L78 Accepts]: Start accepts. Automaton has 1656 states and 1960 transitions. Word has length 265 [2018-09-19 04:12:19,414 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-19 04:12:19,414 INFO L480 AbstractCegarLoop]: Abstraction has 1656 states and 1960 transitions. [2018-09-19 04:12:19,414 INFO L481 AbstractCegarLoop]: Interpolant automaton has 10 states. [2018-09-19 04:12:19,414 INFO L276 IsEmpty]: Start isEmpty. Operand 1656 states and 1960 transitions. [2018-09-19 04:12:19,423 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 344 [2018-09-19 04:12:19,423 INFO L368 BasicCegarLoop]: Found error trace [2018-09-19 04:12:19,423 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, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2018-09-19 04:12:19,424 INFO L423 AbstractCegarLoop]: === Iteration 6 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-19 04:12:19,424 INFO L82 PathProgramCache]: Analyzing trace with hash 249486111, now seen corresponding path program 1 times [2018-09-19 04:12:19,424 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-19 04:12:19,424 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 344 with the following transitions: [2018-09-19 04:12:19,425 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], [253], [255], [258], [266], [274], [282], [290], [298], [306], [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] [2018-09-19 04:12:19,437 INFO L148 AbstractInterpreter]: Using domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-09-19 04:12:19,438 INFO L101 FixpointEngine]: Starting fixpoint engine with domain CompoundDomain (maxUnwinding=3, maxParallelStates=1) [2018-09-19 04:12:24,577 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-09-19 04:12:41,969 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-19 04:12:41,969 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 04:12:41,978 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-19 04:12:44,300 INFO L232 lantSequenceWeakener]: Weakened 341 states. On average, predicates are now at 77.72% of their original sizes. [2018-09-19 04:12:44,301 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-19 04:12:44,729 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-19 04:12:44,729 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-19 04:12:44,729 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2018-09-19 04:12:44,730 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-19 04:12:44,730 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2018-09-19 04:12:44,730 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2018-09-19 04:12:44,731 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=116, Unknown=0, NotChecked=0, Total=156 [2018-09-19 04:12:44,731 INFO L87 Difference]: Start difference. First operand 1656 states and 1960 transitions. Second operand 13 states. [2018-09-19 04:12:54,311 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-19 04:12:54,311 INFO L93 Difference]: Finished difference Result 2810 states and 3870 transitions. [2018-09-19 04:12:54,313 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2018-09-19 04:12:54,313 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 343 [2018-09-19 04:12:54,314 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-19 04:12:54,325 INFO L225 Difference]: With dead ends: 2810 [2018-09-19 04:12:54,325 INFO L226 Difference]: Without dead ends: 2378 [2018-09-19 04:12:54,329 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 359 GetRequests, 331 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 188 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=180, Invalid=690, Unknown=0, NotChecked=0, Total=870 [2018-09-19 04:12:54,332 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2378 states. [2018-09-19 04:12:54,385 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2378 to 1863. [2018-09-19 04:12:54,385 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1863 states. [2018-09-19 04:12:54,391 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1863 states to 1863 states and 2217 transitions. [2018-09-19 04:12:54,391 INFO L78 Accepts]: Start accepts. Automaton has 1863 states and 2217 transitions. Word has length 343 [2018-09-19 04:12:54,392 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-19 04:12:54,392 INFO L480 AbstractCegarLoop]: Abstraction has 1863 states and 2217 transitions. [2018-09-19 04:12:54,392 INFO L481 AbstractCegarLoop]: Interpolant automaton has 13 states. [2018-09-19 04:12:54,392 INFO L276 IsEmpty]: Start isEmpty. Operand 1863 states and 2217 transitions. [2018-09-19 04:12:54,400 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 348 [2018-09-19 04:12:54,400 INFO L368 BasicCegarLoop]: Found error trace [2018-09-19 04:12:54,401 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, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-19 04:12:54,401 INFO L423 AbstractCegarLoop]: === Iteration 7 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-19 04:12:54,401 INFO L82 PathProgramCache]: Analyzing trace with hash 176393815, now seen corresponding path program 1 times [2018-09-19 04:12:54,401 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-19 04:12:54,402 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 348 with the following transitions: [2018-09-19 04:12:54,402 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], [253], [255], [258], [266], [274], [282], [290], [298], [306], [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], [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 04:12:54,405 INFO L148 AbstractInterpreter]: Using domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-09-19 04:12:54,405 INFO L101 FixpointEngine]: Starting fixpoint engine with domain CompoundDomain (maxUnwinding=3, maxParallelStates=1) [2018-09-19 04:12:59,947 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-09-19 04:13:23,660 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-19 04:13:23,660 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 04:13:23,667 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-19 04:13:25,397 INFO L232 lantSequenceWeakener]: Weakened 345 states. On average, predicates are now at 77.72% of their original sizes. [2018-09-19 04:13:25,397 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-19 04:13:25,637 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-19 04:13:25,638 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-19 04:13:25,638 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2018-09-19 04:13:25,638 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-19 04:13:25,638 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2018-09-19 04:13:25,639 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2018-09-19 04:13:25,639 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2018-09-19 04:13:25,639 INFO L87 Difference]: Start difference. First operand 1863 states and 2217 transitions. Second operand 10 states. [2018-09-19 04:13:32,458 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-19 04:13:32,458 INFO L93 Difference]: Finished difference Result 2697 states and 3488 transitions. [2018-09-19 04:13:32,458 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2018-09-19 04:13:32,459 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 347 [2018-09-19 04:13:32,460 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-19 04:13:32,469 INFO L225 Difference]: With dead ends: 2697 [2018-09-19 04:13:32,470 INFO L226 Difference]: Without dead ends: 2058 [2018-09-19 04:13:32,473 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 354 GetRequests, 338 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 04:13:32,474 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2058 states. [2018-09-19 04:13:32,523 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2058 to 2048. [2018-09-19 04:13:32,523 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2048 states. [2018-09-19 04:13:32,530 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2048 states to 2048 states and 2435 transitions. [2018-09-19 04:13:32,530 INFO L78 Accepts]: Start accepts. Automaton has 2048 states and 2435 transitions. Word has length 347 [2018-09-19 04:13:32,531 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-19 04:13:32,531 INFO L480 AbstractCegarLoop]: Abstraction has 2048 states and 2435 transitions. [2018-09-19 04:13:32,531 INFO L481 AbstractCegarLoop]: Interpolant automaton has 10 states. [2018-09-19 04:13:32,531 INFO L276 IsEmpty]: Start isEmpty. Operand 2048 states and 2435 transitions. [2018-09-19 04:13:32,537 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 369 [2018-09-19 04:13:32,538 INFO L368 BasicCegarLoop]: Found error trace [2018-09-19 04:13:32,538 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, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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 04:13:32,538 INFO L423 AbstractCegarLoop]: === Iteration 8 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-19 04:13:32,539 INFO L82 PathProgramCache]: Analyzing trace with hash 1208852728, now seen corresponding path program 1 times [2018-09-19 04:13:32,539 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-19 04:13:32,539 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 369 with the following transitions: [2018-09-19 04:13:32,539 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], [253], [255], [258], [266], [274], [282], [290], [298], [306], [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] [2018-09-19 04:13:32,542 INFO L148 AbstractInterpreter]: Using domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-09-19 04:13:32,543 INFO L101 FixpointEngine]: Starting fixpoint engine with domain CompoundDomain (maxUnwinding=3, maxParallelStates=1) [2018-09-19 04:13:38,007 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-09-19 04:13:54,566 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-19 04:13:54,567 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 04:13:54,599 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-19 04:13:56,691 INFO L232 lantSequenceWeakener]: Weakened 366 states. On average, predicates are now at 77.69% of their original sizes. [2018-09-19 04:13:56,691 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-19 04:13:57,080 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-19 04:13:57,080 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-19 04:13:57,080 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2018-09-19 04:13:57,081 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-19 04:13:57,081 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2018-09-19 04:13:57,082 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2018-09-19 04:13:57,082 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=116, Unknown=0, NotChecked=0, Total=156 [2018-09-19 04:13:57,082 INFO L87 Difference]: Start difference. First operand 2048 states and 2435 transitions. Second operand 13 states. [2018-09-19 04:14:06,700 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-19 04:14:06,700 INFO L93 Difference]: Finished difference Result 3776 states and 5056 transitions. [2018-09-19 04:14:06,701 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2018-09-19 04:14:06,701 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 368 [2018-09-19 04:14:06,702 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-19 04:14:06,714 INFO L225 Difference]: With dead ends: 3776 [2018-09-19 04:14:06,714 INFO L226 Difference]: Without dead ends: 2952 [2018-09-19 04:14:06,718 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 384 GetRequests, 356 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 188 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=180, Invalid=690, Unknown=0, NotChecked=0, Total=870 [2018-09-19 04:14:06,720 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2952 states. [2018-09-19 04:14:06,784 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2952 to 2259. [2018-09-19 04:14:06,784 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2259 states. [2018-09-19 04:14:06,789 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2259 states to 2259 states and 2698 transitions. [2018-09-19 04:14:06,789 INFO L78 Accepts]: Start accepts. Automaton has 2259 states and 2698 transitions. Word has length 368 [2018-09-19 04:14:06,790 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-19 04:14:06,790 INFO L480 AbstractCegarLoop]: Abstraction has 2259 states and 2698 transitions. [2018-09-19 04:14:06,790 INFO L481 AbstractCegarLoop]: Interpolant automaton has 13 states. [2018-09-19 04:14:06,791 INFO L276 IsEmpty]: Start isEmpty. Operand 2259 states and 2698 transitions. [2018-09-19 04:14:06,798 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 426 [2018-09-19 04:14:06,798 INFO L368 BasicCegarLoop]: Found error trace [2018-09-19 04:14:06,798 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, 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, 2, 2, 2, 2, 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 04:14:06,798 INFO L423 AbstractCegarLoop]: === Iteration 9 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-19 04:14:06,799 INFO L82 PathProgramCache]: Analyzing trace with hash 914565035, now seen corresponding path program 1 times [2018-09-19 04:14:06,799 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-19 04:14:06,799 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 426 with the following transitions: [2018-09-19 04:14:06,800 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], [253], [255], [258], [266], [274], [282], [290], [298], [306], [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], [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 04:14:06,803 INFO L148 AbstractInterpreter]: Using domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-09-19 04:14:06,803 INFO L101 FixpointEngine]: Starting fixpoint engine with domain CompoundDomain (maxUnwinding=3, maxParallelStates=1) [2018-09-19 04:14:11,924 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-09-19 04:14:43,638 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-19 04:14:43,639 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 04:14:43,648 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-19 04:14:45,808 INFO L232 lantSequenceWeakener]: Weakened 423 states. On average, predicates are now at 77.66% of their original sizes. [2018-09-19 04:14:45,809 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-19 04:14:46,238 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-19 04:14:46,239 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-19 04:14:46,239 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2018-09-19 04:14:46,239 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-19 04:14:46,240 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2018-09-19 04:14:46,241 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2018-09-19 04:14:46,241 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=116, Unknown=0, NotChecked=0, Total=156 [2018-09-19 04:14:46,241 INFO L87 Difference]: Start difference. First operand 2259 states and 2698 transitions. Second operand 13 states. Received shutdown request... [2018-09-19 04:14:50,131 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2018-09-19 04:14:50,132 WARN L549 AbstractCegarLoop]: Verification canceled [2018-09-19 04:14:50,138 WARN L206 ceAbstractionStarter]: Timeout [2018-09-19 04:14:50,139 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.09 04:14:50 BoogieIcfgContainer [2018-09-19 04:14:50,139 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-09-19 04:14:50,140 INFO L168 Benchmark]: Toolchain (without parser) took 247653.96 ms. Allocated memory was 1.5 GB in the beginning and 4.2 GB in the end (delta: 2.6 GB). Free memory was 1.4 GB in the beginning and 3.3 GB in the end (delta: -1.9 GB). Peak memory consumption was 713.3 MB. Max. memory is 7.1 GB. [2018-09-19 04:14:50,141 INFO L168 Benchmark]: CDTParser took 0.20 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. [2018-09-19 04:14:50,142 INFO L168 Benchmark]: CACSL2BoogieTranslator took 899.79 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: 42.3 MB). Peak memory consumption was 42.3 MB. Max. memory is 7.1 GB. [2018-09-19 04:14:50,143 INFO L168 Benchmark]: Boogie Procedure Inliner took 144.05 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: 10.6 MB). Peak memory consumption was 10.6 MB. Max. memory is 7.1 GB. [2018-09-19 04:14:50,145 INFO L168 Benchmark]: Boogie Preprocessor took 371.66 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 767.0 MB). Free memory was 1.4 GB in the beginning and 2.2 GB in the end (delta: -855.3 MB). Peak memory consumption was 33.0 MB. Max. memory is 7.1 GB. [2018-09-19 04:14:50,146 INFO L168 Benchmark]: RCFGBuilder took 4196.31 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: 132.6 MB). Peak memory consumption was 132.6 MB. Max. memory is 7.1 GB. [2018-09-19 04:14:50,146 INFO L168 Benchmark]: TraceAbstraction took 242032.35 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 3.3 GB in the end (delta: -1.3 GB). Peak memory consumption was 616.1 MB. Max. memory is 7.1 GB. [2018-09-19 04:14:50,152 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20 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 899.79 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: 42.3 MB). Peak memory consumption was 42.3 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 144.05 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: 10.6 MB). Peak memory consumption was 10.6 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 371.66 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 767.0 MB). Free memory was 1.4 GB in the beginning and 2.2 GB in the end (delta: -855.3 MB). Peak memory consumption was 33.0 MB. Max. memory is 7.1 GB. * RCFGBuilder took 4196.31 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: 132.6 MB). Peak memory consumption was 132.6 MB. Max. memory is 7.1 GB. * TraceAbstraction took 242032.35 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 3.3 GB in the end (delta: -1.3 GB). Peak memory consumption was 616.1 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResultAtElement [Line: 115]: Timeout (TraceAbstraction) Unable to prove that call of __VERIFIER_error() unreachable (line 115). Cancelled while BasicCegarLoop was constructing difference of abstraction (2259states) and FLOYD_HOARE automaton (currently 14 states, 13 states before enhancement), while ReachableStatesComputation was computing reachable states (737 states constructedinput type IntersectNwa). - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 255 locations, 1 error locations. TIMEOUT Result, 241.9s OverallTime, 9 OverallIterations, 5 TraceHistogramMax, 72.8s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 1862 SDtfs, 13541 SDslu, 3012 SDs, 0 SdLazy, 21349 SolverSat, 3802 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 62.5s Time, PredicateUnifierStatistics: 18 DeclaredPredicates, 2405 GetRequests, 2220 SyntacticMatches, 0 SemanticMatches, 185 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 932 ImplicationChecksByTransitivity, 7.8s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=2259occurred in iteration=8, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 148.9s AbstIntTime, 9 AbstIntIterations, 9 AbstIntStrong, 0.9952852291787672 AbsIntWeakeningRatio, 0.10403120936280884 AbsIntAvgWeakeningVarsNumRemoved, 919.4958820979627 AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.4s AutomataMinimizationTime, 8 MinimizatonAttempts, 1942 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_label50_true-unreach-call_false-termination.c_svcomp-Reach-64bit-ToothlessTaipan_Default-OldIcfg.epf_AutomizerCInline.xml/Csv-Benchmark-0-2018-09-19_04-14-50-167.csv Written .csv to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/csv/Problem14_label50_true-unreach-call_false-termination.c_svcomp-Reach-64bit-ToothlessTaipan_Default-OldIcfg.epf_AutomizerCInline.xml/Csv-TraceAbstractionBenchmarks-0-2018-09-19_04-14-50-167.csv Completed graceful shutdown