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/Problem10_label21_true-unreach-call.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-69f5bdd-m [2018-09-19 09:59:22,566 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-09-19 09:59:22,568 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-09-19 09:59:22,585 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-09-19 09:59:22,586 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-09-19 09:59:22,587 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-09-19 09:59:22,588 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-09-19 09:59:22,590 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-09-19 09:59:22,592 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-09-19 09:59:22,593 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-09-19 09:59:22,594 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-09-19 09:59:22,594 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-09-19 09:59:22,595 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-09-19 09:59:22,596 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-09-19 09:59:22,597 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-09-19 09:59:22,598 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-09-19 09:59:22,599 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-09-19 09:59:22,601 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-09-19 09:59:22,603 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-09-19 09:59:22,605 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-09-19 09:59:22,606 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-09-19 09:59:22,607 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-09-19 09:59:22,611 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-09-19 09:59:22,611 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-09-19 09:59:22,611 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-09-19 09:59:22,612 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-09-19 09:59:22,616 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-09-19 09:59:22,617 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-09-19 09:59:22,618 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-09-19 09:59:22,624 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-09-19 09:59:22,624 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-09-19 09:59:22,625 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... 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[2018-09-19 09:59:22,629 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 [2018-09-19 09:59:22,654 INFO L110 SettingsManager]: Loading preferences was successful [2018-09-19 09:59:22,655 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-09-19 09:59:22,656 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-09-19 09:59:22,656 INFO L133 SettingsManager]: * User list type=DISABLED [2018-09-19 09:59:22,656 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-09-19 09:59:22,656 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-09-19 09:59:22,657 INFO L133 SettingsManager]: * Congruence Domain=false [2018-09-19 09:59:22,657 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-09-19 09:59:22,657 INFO L133 SettingsManager]: * Abstract domain=OctagonDomain [2018-09-19 09:59:22,657 INFO L133 SettingsManager]: * Log string format=TERM [2018-09-19 09:59:22,657 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-09-19 09:59:22,657 INFO L133 SettingsManager]: * Parallel states before merging=1 [2018-09-19 09:59:22,658 INFO L133 SettingsManager]: * Interval Domain=false [2018-09-19 09:59:22,658 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-09-19 09:59:22,659 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-09-19 09:59:22,659 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-09-19 09:59:22,659 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-09-19 09:59:22,659 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-09-19 09:59:22,659 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-09-19 09:59:22,660 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-09-19 09:59:22,660 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-09-19 09:59:22,660 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-09-19 09:59:22,660 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-09-19 09:59:22,660 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-09-19 09:59:22,661 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-09-19 09:59:22,661 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-09-19 09:59:22,661 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-09-19 09:59:22,661 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-09-19 09:59:22,661 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-09-19 09:59:22,661 INFO L133 SettingsManager]: * Trace refinement strategy=TOOTHLESS_TAIPAN [2018-09-19 09:59:22,662 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-09-19 09:59:22,662 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-09-19 09:59:22,662 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-09-19 09:59:22,662 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-09-19 09:59:22,662 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-09-19 09:59:22,729 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-09-19 09:59:22,744 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-09-19 09:59:22,752 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-09-19 09:59:22,755 INFO L271 PluginConnector]: Initializing CDTParser... [2018-09-19 09:59:22,755 INFO L276 PluginConnector]: CDTParser initialized [2018-09-19 09:59:22,756 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem10_label21_true-unreach-call.c [2018-09-19 09:59:23,129 INFO L221 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f248b2a74/1eabe2f7b4274666aa4a6f84789866d8/FLAG4b49fab5c [2018-09-19 09:59:23,398 INFO L277 CDTParser]: Found 1 translation units. [2018-09-19 09:59:23,399 INFO L159 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem10_label21_true-unreach-call.c [2018-09-19 09:59:23,412 INFO L325 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f248b2a74/1eabe2f7b4274666aa4a6f84789866d8/FLAG4b49fab5c [2018-09-19 09:59:23,428 INFO L333 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f248b2a74/1eabe2f7b4274666aa4a6f84789866d8 [2018-09-19 09:59:23,439 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-09-19 09:59:23,442 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-09-19 09:59:23,445 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-09-19 09:59:23,445 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-09-19 09:59:23,453 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-09-19 09:59:23,454 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.09 09:59:23" (1/1) ... [2018-09-19 09:59:23,457 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2ebe4f0f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 09:59:23, skipping insertion in model container [2018-09-19 09:59:23,458 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.09 09:59:23" (1/1) ... [2018-09-19 09:59:23,470 INFO L160 ieTranslatorObserver]: Starting translation in SV-COMP mode [2018-09-19 09:59:24,029 INFO L170 PostProcessor]: Settings: Checked method=main [2018-09-19 09:59:24,046 INFO L424 MainDispatcher]: Starting main dispatcher in SV-COMP mode [2018-09-19 09:59:24,148 INFO L170 PostProcessor]: Settings: Checked method=main [2018-09-19 09:59:24,199 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 09:59:24 WrapperNode [2018-09-19 09:59:24,199 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-09-19 09:59:24,200 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-09-19 09:59:24,201 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-09-19 09:59:24,201 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-09-19 09:59:24,211 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 09:59:24" (1/1) ... [2018-09-19 09:59:24,242 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 09:59:24" (1/1) ... [2018-09-19 09:59:24,338 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-09-19 09:59:24,341 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-09-19 09:59:24,342 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-09-19 09:59:24,342 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-09-19 09:59:24,499 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 09:59:24" (1/1) ... [2018-09-19 09:59:24,499 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 09:59:24" (1/1) ... [2018-09-19 09:59:24,507 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 09:59:24" (1/1) ... [2018-09-19 09:59:24,507 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 09:59:24" (1/1) ... [2018-09-19 09:59:24,558 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 09:59:24" (1/1) ... [2018-09-19 09:59:24,575 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 09:59:24" (1/1) ... [2018-09-19 09:59:24,586 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 09:59:24" (1/1) ... [2018-09-19 09:59:24,596 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-09-19 09:59:24,596 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-09-19 09:59:24,597 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-09-19 09:59:24,597 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-09-19 09:59:24,598 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 09:59:24" (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 09:59:24,673 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-09-19 09:59:24,674 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-09-19 09:59:24,674 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2018-09-19 09:59:24,674 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2018-09-19 09:59:24,676 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-09-19 09:59:24,676 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-09-19 09:59:24,676 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-09-19 09:59:24,676 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-09-19 09:59:27,912 INFO L356 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-09-19 09:59:27,912 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.09 09:59:27 BoogieIcfgContainer [2018-09-19 09:59:27,913 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-09-19 09:59:27,914 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-09-19 09:59:27,914 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-09-19 09:59:27,917 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-09-19 09:59:27,918 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.09 09:59:23" (1/3) ... [2018-09-19 09:59:27,919 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5168e343 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.09 09:59:27, skipping insertion in model container [2018-09-19 09:59:27,919 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 09:59:24" (2/3) ... [2018-09-19 09:59:27,919 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5168e343 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.09 09:59:27, skipping insertion in model container [2018-09-19 09:59:27,919 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.09 09:59:27" (3/3) ... [2018-09-19 09:59:27,921 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem10_label21_true-unreach-call.c [2018-09-19 09:59:27,930 INFO L137 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-09-19 09:59:27,938 INFO L149 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-09-19 09:59:27,986 INFO L130 ementStrategyFactory]: Using default assertion order modulation [2018-09-19 09:59:27,987 INFO L381 AbstractCegarLoop]: Interprodecural is true [2018-09-19 09:59:27,987 INFO L382 AbstractCegarLoop]: Hoare is true [2018-09-19 09:59:27,987 INFO L383 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-09-19 09:59:27,988 INFO L384 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-09-19 09:59:27,988 INFO L385 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-09-19 09:59:27,988 INFO L386 AbstractCegarLoop]: Difference is false [2018-09-19 09:59:27,988 INFO L387 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-09-19 09:59:27,988 INFO L392 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-09-19 09:59:28,015 INFO L276 IsEmpty]: Start isEmpty. Operand 216 states. [2018-09-19 09:59:28,023 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2018-09-19 09:59:28,024 INFO L368 BasicCegarLoop]: Found error trace [2018-09-19 09:59:28,025 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] [2018-09-19 09:59:28,026 INFO L423 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-19 09:59:28,032 INFO L82 PathProgramCache]: Analyzing trace with hash 763875860, now seen corresponding path program 1 times [2018-09-19 09:59:28,035 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-19 09:59:28,036 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 35 with the following transitions: [2018-09-19 09:59:28,038 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], [173], [175], [796], [800], [806], [810], [817], [818], [819], [821] [2018-09-19 09:59:28,097 INFO L148 AbstractInterpreter]: Using domain OctagonDomain [2018-09-19 09:59:28,098 INFO L101 FixpointEngine]: Starting fixpoint engine with domain OctagonDomain (maxUnwinding=3, maxParallelStates=1) [2018-09-19 09:59:29,353 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-19 09:59:29,355 INFO L272 AbstractInterpreter]: Visited 33 different actions 33 times. Never merged. Never widened. Never found a fixpoint. Largest state had 23 variables. [2018-09-19 09:59:29,370 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-19 09:59:29,854 INFO L232 lantSequenceWeakener]: Weakened 32 states. On average, predicates are now at 74.82% of their original sizes. [2018-09-19 09:59:29,854 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-19 09:59:30,164 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-19 09:59:30,166 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-19 09:59:30,167 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-09-19 09:59:30,167 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-19 09:59:30,173 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-09-19 09:59:30,180 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-09-19 09:59:30,181 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2018-09-19 09:59:30,183 INFO L87 Difference]: Start difference. First operand 216 states. Second operand 6 states. [2018-09-19 09:59:33,860 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-19 09:59:33,861 INFO L93 Difference]: Finished difference Result 576 states and 995 transitions. [2018-09-19 09:59:33,862 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-09-19 09:59:33,864 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 34 [2018-09-19 09:59:33,865 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-19 09:59:33,897 INFO L225 Difference]: With dead ends: 576 [2018-09-19 09:59:33,898 INFO L226 Difference]: Without dead ends: 358 [2018-09-19 09:59:33,906 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 33 GetRequests, 29 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 09:59:33,929 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 358 states. [2018-09-19 09:59:33,988 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 358 to 356. [2018-09-19 09:59:33,990 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 356 states. [2018-09-19 09:59:33,993 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 356 states to 356 states and 497 transitions. [2018-09-19 09:59:33,996 INFO L78 Accepts]: Start accepts. Automaton has 356 states and 497 transitions. Word has length 34 [2018-09-19 09:59:33,996 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-19 09:59:33,997 INFO L480 AbstractCegarLoop]: Abstraction has 356 states and 497 transitions. [2018-09-19 09:59:33,997 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-09-19 09:59:33,997 INFO L276 IsEmpty]: Start isEmpty. Operand 356 states and 497 transitions. [2018-09-19 09:59:34,003 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2018-09-19 09:59:34,003 INFO L368 BasicCegarLoop]: Found error trace [2018-09-19 09:59:34,003 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 09:59:34,004 INFO L423 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-19 09:59:34,004 INFO L82 PathProgramCache]: Analyzing trace with hash -1453618365, now seen corresponding path program 1 times [2018-09-19 09:59:34,004 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-19 09:59:34,005 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 106 with the following transitions: [2018-09-19 09:59:34,005 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], [173], [175], [178], [186], [194], [202], [210], [218], [226], [234], [242], [250], [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], [498], [792], [796], [800], [806], [810], [812], [817], [818], [819], [821], [822] [2018-09-19 09:59:34,013 INFO L148 AbstractInterpreter]: Using domain OctagonDomain [2018-09-19 09:59:34,013 INFO L101 FixpointEngine]: Starting fixpoint engine with domain OctagonDomain (maxUnwinding=3, maxParallelStates=1) [2018-09-19 09:59:35,657 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-09-19 09:59:39,005 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-19 09:59:39,005 INFO L272 AbstractInterpreter]: Visited 78 different actions 221 times. Merged at 5 different actions 9 times. Never widened. Found 1 fixpoints after 1 different actions. Largest state had 24 variables. [2018-09-19 09:59:39,014 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-19 09:59:39,690 INFO L232 lantSequenceWeakener]: Weakened 103 states. On average, predicates are now at 73.47% of their original sizes. [2018-09-19 09:59:39,691 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-19 09:59:40,316 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-19 09:59:40,317 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-19 09:59:40,317 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2018-09-19 09:59:40,317 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-19 09:59:40,319 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2018-09-19 09:59:40,319 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2018-09-19 09:59:40,319 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2018-09-19 09:59:40,320 INFO L87 Difference]: Start difference. First operand 356 states and 497 transitions. Second operand 10 states. [2018-09-19 09:59:47,359 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-19 09:59:47,359 INFO L93 Difference]: Finished difference Result 717 states and 1132 transitions. [2018-09-19 09:59:47,363 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2018-09-19 09:59:47,363 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 105 [2018-09-19 09:59:47,364 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-19 09:59:47,369 INFO L225 Difference]: With dead ends: 717 [2018-09-19 09:59:47,369 INFO L226 Difference]: Without dead ends: 511 [2018-09-19 09:59:47,372 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 111 GetRequests, 96 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 33 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=68, Invalid=204, Unknown=0, NotChecked=0, Total=272 [2018-09-19 09:59:47,373 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 511 states. [2018-09-19 09:59:47,407 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 511 to 505. [2018-09-19 09:59:47,407 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 505 states. [2018-09-19 09:59:47,410 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 505 states to 505 states and 669 transitions. [2018-09-19 09:59:47,411 INFO L78 Accepts]: Start accepts. Automaton has 505 states and 669 transitions. Word has length 105 [2018-09-19 09:59:47,411 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-19 09:59:47,411 INFO L480 AbstractCegarLoop]: Abstraction has 505 states and 669 transitions. [2018-09-19 09:59:47,412 INFO L481 AbstractCegarLoop]: Interpolant automaton has 10 states. [2018-09-19 09:59:47,412 INFO L276 IsEmpty]: Start isEmpty. Operand 505 states and 669 transitions. [2018-09-19 09:59:47,416 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2018-09-19 09:59:47,416 INFO L368 BasicCegarLoop]: Found error trace [2018-09-19 09:59:47,416 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 09:59:47,417 INFO L423 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-19 09:59:47,417 INFO L82 PathProgramCache]: Analyzing trace with hash 1676021384, now seen corresponding path program 1 times [2018-09-19 09:59:47,417 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-19 09:59:47,417 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 115 with the following transitions: [2018-09-19 09:59:47,418 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], [173], [175], [178], [186], [194], [202], [210], [218], [226], [234], [242], [250], [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], [534], [792], [796], [800], [806], [810], [812], [817], [818], [819], [821], [822] [2018-09-19 09:59:47,422 INFO L148 AbstractInterpreter]: Using domain OctagonDomain [2018-09-19 09:59:47,423 INFO L101 FixpointEngine]: Starting fixpoint engine with domain OctagonDomain (maxUnwinding=3, maxParallelStates=1) [2018-09-19 09:59:51,735 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-09-19 09:59:54,556 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-19 09:59:54,556 INFO L272 AbstractInterpreter]: Visited 87 different actions 248 times. Merged at 5 different actions 9 times. Never widened. Found 1 fixpoints after 1 different actions. Largest state had 24 variables. [2018-09-19 09:59:54,563 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-19 09:59:55,348 INFO L232 lantSequenceWeakener]: Weakened 112 states. On average, predicates are now at 73.41% of their original sizes. [2018-09-19 09:59:55,348 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-19 09:59:56,197 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-19 09:59:56,198 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-19 09:59:56,198 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2018-09-19 09:59:56,198 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-19 09:59:56,199 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2018-09-19 09:59:56,199 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2018-09-19 09:59:56,200 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=116, Unknown=0, NotChecked=0, Total=156 [2018-09-19 09:59:56,200 INFO L87 Difference]: Start difference. First operand 505 states and 669 transitions. Second operand 13 states. [2018-09-19 10:00:08,573 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-19 10:00:08,573 INFO L93 Difference]: Finished difference Result 1333 states and 2096 transitions. [2018-09-19 10:00:08,577 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2018-09-19 10:00:08,578 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 114 [2018-09-19 10:00:08,579 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-19 10:00:08,585 INFO L225 Difference]: With dead ends: 1333 [2018-09-19 10:00:08,585 INFO L226 Difference]: Without dead ends: 978 [2018-09-19 10:00:08,592 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 128 GetRequests, 102 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 152 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=164, Invalid=592, Unknown=0, NotChecked=0, Total=756 [2018-09-19 10:00:08,593 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 978 states. [2018-09-19 10:00:08,650 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 978 to 762. [2018-09-19 10:00:08,650 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 762 states. [2018-09-19 10:00:08,654 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 762 states to 762 states and 953 transitions. [2018-09-19 10:00:08,654 INFO L78 Accepts]: Start accepts. Automaton has 762 states and 953 transitions. Word has length 114 [2018-09-19 10:00:08,655 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-19 10:00:08,655 INFO L480 AbstractCegarLoop]: Abstraction has 762 states and 953 transitions. [2018-09-19 10:00:08,655 INFO L481 AbstractCegarLoop]: Interpolant automaton has 13 states. [2018-09-19 10:00:08,655 INFO L276 IsEmpty]: Start isEmpty. Operand 762 states and 953 transitions. [2018-09-19 10:00:08,662 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 151 [2018-09-19 10:00:08,662 INFO L368 BasicCegarLoop]: Found error trace [2018-09-19 10:00:08,662 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 10:00:08,663 INFO L423 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-19 10:00:08,663 INFO L82 PathProgramCache]: Analyzing trace with hash 1275256064, now seen corresponding path program 1 times [2018-09-19 10:00:08,663 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-19 10:00:08,663 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 151 with the following transitions: [2018-09-19 10:00:08,664 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], [173], [175], [178], [186], [194], [202], [210], [218], [226], [234], [242], [250], [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], [659], [663], [667], [671], [675], [678], [792], [796], [800], [806], [810], [812], [817], [818], [819], [821], [822] [2018-09-19 10:00:08,669 INFO L148 AbstractInterpreter]: Using domain OctagonDomain [2018-09-19 10:00:08,669 INFO L101 FixpointEngine]: Starting fixpoint engine with domain OctagonDomain (maxUnwinding=3, maxParallelStates=1) [2018-09-19 10:00:11,623 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-09-19 10:00:18,205 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-19 10:00:18,206 INFO L272 AbstractInterpreter]: Visited 123 different actions 356 times. Merged at 5 different actions 9 times. Never widened. Found 1 fixpoints after 1 different actions. Largest state had 24 variables. [2018-09-19 10:00:18,212 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-19 10:00:19,022 INFO L232 lantSequenceWeakener]: Weakened 148 states. On average, predicates are now at 73.24% of their original sizes. [2018-09-19 10:00:19,023 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-19 10:00:19,479 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-19 10:00:19,479 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-19 10:00:19,480 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2018-09-19 10:00:19,480 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-19 10:00:19,480 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2018-09-19 10:00:19,481 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2018-09-19 10:00:19,481 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=98, Unknown=0, NotChecked=0, Total=132 [2018-09-19 10:00:19,481 INFO L87 Difference]: Start difference. First operand 762 states and 953 transitions. Second operand 12 states. [2018-09-19 10:00:30,135 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-19 10:00:30,135 INFO L93 Difference]: Finished difference Result 1677 states and 2220 transitions. [2018-09-19 10:00:30,136 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2018-09-19 10:00:30,136 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 150 [2018-09-19 10:00:30,137 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-19 10:00:30,146 INFO L225 Difference]: With dead ends: 1677 [2018-09-19 10:00:30,146 INFO L226 Difference]: Without dead ends: 1067 [2018-09-19 10:00:30,149 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 158 GetRequests, 139 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 65 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=101, Invalid=319, Unknown=0, NotChecked=0, Total=420 [2018-09-19 10:00:30,150 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1067 states. [2018-09-19 10:00:30,184 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1067 to 1056. [2018-09-19 10:00:30,185 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1056 states. [2018-09-19 10:00:30,189 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1056 states to 1056 states and 1287 transitions. [2018-09-19 10:00:30,189 INFO L78 Accepts]: Start accepts. Automaton has 1056 states and 1287 transitions. Word has length 150 [2018-09-19 10:00:30,189 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-19 10:00:30,190 INFO L480 AbstractCegarLoop]: Abstraction has 1056 states and 1287 transitions. [2018-09-19 10:00:30,190 INFO L481 AbstractCegarLoop]: Interpolant automaton has 12 states. [2018-09-19 10:00:30,190 INFO L276 IsEmpty]: Start isEmpty. Operand 1056 states and 1287 transitions. [2018-09-19 10:00:30,193 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 170 [2018-09-19 10:00:30,193 INFO L368 BasicCegarLoop]: Found error trace [2018-09-19 10:00:30,193 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 10:00:30,194 INFO L423 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-19 10:00:30,194 INFO L82 PathProgramCache]: Analyzing trace with hash -218739005, now seen corresponding path program 1 times [2018-09-19 10:00:30,194 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-19 10:00:30,194 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 170 with the following transitions: [2018-09-19 10:00:30,195 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], [173], [175], [178], [186], [194], [202], [210], [218], [226], [234], [242], [250], [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], [659], [663], [667], [671], [675], [679], [683], [687], [691], [695], [699], [703], [707], [711], [715], [719], [723], [727], [731], [735], [739], [743], [747], [751], [754], [792], [796], [800], [806], [810], [812], [817], [818], [819], [821], [822] [2018-09-19 10:00:30,200 INFO L148 AbstractInterpreter]: Using domain OctagonDomain [2018-09-19 10:00:30,200 INFO L101 FixpointEngine]: Starting fixpoint engine with domain OctagonDomain (maxUnwinding=3, maxParallelStates=1) [2018-09-19 10:00:40,928 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-19 10:00:40,928 INFO L272 AbstractInterpreter]: Visited 142 different actions 413 times. Merged at 5 different actions 9 times. Never widened. Found 1 fixpoints after 1 different actions. Largest state had 24 variables. [2018-09-19 10:00:40,936 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-19 10:00:41,754 INFO L232 lantSequenceWeakener]: Weakened 167 states. On average, predicates are now at 73.18% of their original sizes. [2018-09-19 10:00:41,755 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-19 10:00:42,116 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-19 10:00:42,117 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-19 10:00:42,117 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2018-09-19 10:00:42,117 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-19 10:00:42,117 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2018-09-19 10:00:42,118 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2018-09-19 10:00:42,118 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=98, Unknown=0, NotChecked=0, Total=132 [2018-09-19 10:00:42,118 INFO L87 Difference]: Start difference. First operand 1056 states and 1287 transitions. Second operand 12 states. [2018-09-19 10:00:47,061 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-19 10:00:47,061 INFO L93 Difference]: Finished difference Result 2268 states and 2899 transitions. [2018-09-19 10:00:47,062 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2018-09-19 10:00:47,062 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 169 [2018-09-19 10:00:47,063 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-19 10:00:47,069 INFO L225 Difference]: With dead ends: 2268 [2018-09-19 10:00:47,070 INFO L226 Difference]: Without dead ends: 1364 [2018-09-19 10:00:47,073 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 178 GetRequests, 158 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 72 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=111, Invalid=351, Unknown=0, NotChecked=0, Total=462 [2018-09-19 10:00:47,074 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1364 states. [2018-09-19 10:00:47,126 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1364 to 1352. [2018-09-19 10:00:47,126 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1352 states. [2018-09-19 10:00:47,132 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1352 states to 1352 states and 1615 transitions. [2018-09-19 10:00:47,132 INFO L78 Accepts]: Start accepts. Automaton has 1352 states and 1615 transitions. Word has length 169 [2018-09-19 10:00:47,133 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-19 10:00:47,133 INFO L480 AbstractCegarLoop]: Abstraction has 1352 states and 1615 transitions. [2018-09-19 10:00:47,133 INFO L481 AbstractCegarLoop]: Interpolant automaton has 12 states. [2018-09-19 10:00:47,133 INFO L276 IsEmpty]: Start isEmpty. Operand 1352 states and 1615 transitions. [2018-09-19 10:00:47,136 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 182 [2018-09-19 10:00:47,136 INFO L368 BasicCegarLoop]: Found error trace [2018-09-19 10:00:47,136 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2018-09-19 10:00:47,137 INFO L423 AbstractCegarLoop]: === Iteration 6 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-19 10:00:47,137 INFO L82 PathProgramCache]: Analyzing trace with hash -908240769, now seen corresponding path program 1 times [2018-09-19 10:00:47,137 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-19 10:00:47,137 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 182 with the following transitions: [2018-09-19 10:00:47,138 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], [173], [175], [178], [186], [194], [202], [210], [218], [226], [234], [242], [250], [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], [498], [499], [503], [507], [511], [515], [518], [792], [796], [800], [806], [810], [812], [817], [818], [819], [821], [822] [2018-09-19 10:00:47,149 INFO L148 AbstractInterpreter]: Using domain OctagonDomain [2018-09-19 10:00:47,149 INFO L101 FixpointEngine]: Starting fixpoint engine with domain OctagonDomain (maxUnwinding=3, maxParallelStates=1) [2018-09-19 10:00:48,738 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-09-19 10:00:54,200 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-19 10:00:54,201 INFO L272 AbstractInterpreter]: Visited 84 different actions 323 times. Merged at 7 different actions 20 times. Never widened. Found 4 fixpoints after 1 different actions. Largest state had 24 variables. [2018-09-19 10:00:54,208 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-19 10:00:54,997 INFO L232 lantSequenceWeakener]: Weakened 179 states. On average, predicates are now at 73.2% of their original sizes. [2018-09-19 10:00:54,997 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-19 10:00:55,854 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-19 10:00:55,854 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-19 10:00:55,854 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2018-09-19 10:00:55,855 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-19 10:00:55,855 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2018-09-19 10:00:55,855 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2018-09-19 10:00:55,856 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2018-09-19 10:00:55,856 INFO L87 Difference]: Start difference. First operand 1352 states and 1615 transitions. Second operand 10 states. [2018-09-19 10:01:00,461 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-19 10:01:00,462 INFO L93 Difference]: Finished difference Result 2719 states and 3388 transitions. [2018-09-19 10:01:00,463 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2018-09-19 10:01:00,463 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 181 [2018-09-19 10:01:00,464 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-19 10:01:00,471 INFO L225 Difference]: With dead ends: 2719 [2018-09-19 10:01:00,472 INFO L226 Difference]: Without dead ends: 1521 [2018-09-19 10:01:00,476 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 188 GetRequests, 172 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 41 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=74, Invalid=232, Unknown=0, NotChecked=0, Total=306 [2018-09-19 10:01:00,477 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1521 states. [2018-09-19 10:01:00,529 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1521 to 1503. [2018-09-19 10:01:00,529 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1503 states. [2018-09-19 10:01:00,534 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1503 states to 1503 states and 1792 transitions. [2018-09-19 10:01:00,535 INFO L78 Accepts]: Start accepts. Automaton has 1503 states and 1792 transitions. Word has length 181 [2018-09-19 10:01:00,535 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-19 10:01:00,535 INFO L480 AbstractCegarLoop]: Abstraction has 1503 states and 1792 transitions. [2018-09-19 10:01:00,535 INFO L481 AbstractCegarLoop]: Interpolant automaton has 10 states. [2018-09-19 10:01:00,536 INFO L276 IsEmpty]: Start isEmpty. Operand 1503 states and 1792 transitions. [2018-09-19 10:01:00,539 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 184 [2018-09-19 10:01:00,539 INFO L368 BasicCegarLoop]: Found error trace [2018-09-19 10:01:00,539 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2018-09-19 10:01:00,539 INFO L423 AbstractCegarLoop]: === Iteration 7 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-19 10:01:00,540 INFO L82 PathProgramCache]: Analyzing trace with hash -673062629, now seen corresponding path program 1 times [2018-09-19 10:01:00,540 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-19 10:01:00,540 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 184 with the following transitions: [2018-09-19 10:01:00,540 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], [173], [175], [178], [186], [194], [202], [210], [218], [226], [234], [242], [250], [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], [498], [499], [503], [507], [511], [515], [519], [523], [526], [792], [796], [800], [806], [810], [812], [817], [818], [819], [821], [822] [2018-09-19 10:01:00,543 INFO L148 AbstractInterpreter]: Using domain OctagonDomain [2018-09-19 10:01:00,543 INFO L101 FixpointEngine]: Starting fixpoint engine with domain OctagonDomain (maxUnwinding=3, maxParallelStates=1) [2018-09-19 10:01:01,975 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-09-19 10:01:08,199 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-19 10:01:08,200 INFO L272 AbstractInterpreter]: Visited 86 different actions 333 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 10:01:08,238 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-19 10:01:09,330 INFO L232 lantSequenceWeakener]: Weakened 181 states. On average, predicates are now at 73.2% of their original sizes. [2018-09-19 10:01:09,331 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-19 10:01:09,597 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-19 10:01:09,598 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-19 10:01:09,598 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2018-09-19 10:01:09,598 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-19 10:01:09,598 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2018-09-19 10:01:09,599 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2018-09-19 10:01:09,599 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2018-09-19 10:01:09,599 INFO L87 Difference]: Start difference. First operand 1503 states and 1792 transitions. Second operand 10 states. [2018-09-19 10:01:16,817 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-19 10:01:16,818 INFO L93 Difference]: Finished difference Result 3020 states and 3751 transitions. [2018-09-19 10:01:16,821 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2018-09-19 10:01:16,822 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 183 [2018-09-19 10:01:16,822 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-19 10:01:16,834 INFO L225 Difference]: With dead ends: 3020 [2018-09-19 10:01:16,834 INFO L226 Difference]: Without dead ends: 1671 [2018-09-19 10:01:16,838 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 190 GetRequests, 174 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 41 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=74, Invalid=232, Unknown=0, NotChecked=0, Total=306 [2018-09-19 10:01:16,840 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1671 states. [2018-09-19 10:01:16,906 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1671 to 1654. [2018-09-19 10:01:16,906 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1654 states. [2018-09-19 10:01:16,912 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1654 states to 1654 states and 1988 transitions. [2018-09-19 10:01:16,913 INFO L78 Accepts]: Start accepts. Automaton has 1654 states and 1988 transitions. Word has length 183 [2018-09-19 10:01:16,913 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-19 10:01:16,913 INFO L480 AbstractCegarLoop]: Abstraction has 1654 states and 1988 transitions. [2018-09-19 10:01:16,913 INFO L481 AbstractCegarLoop]: Interpolant automaton has 10 states. [2018-09-19 10:01:16,914 INFO L276 IsEmpty]: Start isEmpty. Operand 1654 states and 1988 transitions. [2018-09-19 10:01:16,917 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 188 [2018-09-19 10:01:16,917 INFO L368 BasicCegarLoop]: Found error trace [2018-09-19 10:01:16,917 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2018-09-19 10:01:16,918 INFO L423 AbstractCegarLoop]: === Iteration 8 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-19 10:01:16,918 INFO L82 PathProgramCache]: Analyzing trace with hash -398366125, now seen corresponding path program 1 times [2018-09-19 10:01:16,918 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-19 10:01:16,919 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 188 with the following transitions: [2018-09-19 10:01:16,919 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], [173], [175], [178], [186], [194], [202], [210], [218], [226], [234], [242], [250], [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], [498], [499], [503], [507], [511], [515], [519], [523], [527], [531], [535], [539], [542], [792], [796], [800], [806], [810], [812], [817], [818], [819], [821], [822] [2018-09-19 10:01:16,921 INFO L148 AbstractInterpreter]: Using domain OctagonDomain [2018-09-19 10:01:16,921 INFO L101 FixpointEngine]: Starting fixpoint engine with domain OctagonDomain (maxUnwinding=3, maxParallelStates=1) [2018-09-19 10:01:18,443 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-09-19 10:01:24,566 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-19 10:01:24,567 INFO L272 AbstractInterpreter]: Visited 90 different actions 349 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 10:01:24,580 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-19 10:01:25,390 INFO L232 lantSequenceWeakener]: Weakened 185 states. On average, predicates are now at 73.19% of their original sizes. [2018-09-19 10:01:25,390 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-19 10:01:25,660 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-19 10:01:25,660 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-19 10:01:25,661 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2018-09-19 10:01:25,661 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-19 10:01:25,661 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2018-09-19 10:01:25,661 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2018-09-19 10:01:25,662 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2018-09-19 10:01:25,662 INFO L87 Difference]: Start difference. First operand 1654 states and 1988 transitions. Second operand 10 states. [2018-09-19 10:01:30,829 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-19 10:01:30,830 INFO L93 Difference]: Finished difference Result 3477 states and 4328 transitions. [2018-09-19 10:01:30,831 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2018-09-19 10:01:30,831 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 187 [2018-09-19 10:01:30,831 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-19 10:01:30,841 INFO L225 Difference]: With dead ends: 3477 [2018-09-19 10:01:30,842 INFO L226 Difference]: Without dead ends: 1977 [2018-09-19 10:01:30,846 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 194 GetRequests, 178 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 41 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=74, Invalid=232, Unknown=0, NotChecked=0, Total=306 [2018-09-19 10:01:30,848 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1977 states. [2018-09-19 10:01:30,920 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1977 to 1954. [2018-09-19 10:01:30,920 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1954 states. [2018-09-19 10:01:30,927 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1954 states to 1954 states and 2362 transitions. [2018-09-19 10:01:30,927 INFO L78 Accepts]: Start accepts. Automaton has 1954 states and 2362 transitions. Word has length 187 [2018-09-19 10:01:30,928 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-19 10:01:30,928 INFO L480 AbstractCegarLoop]: Abstraction has 1954 states and 2362 transitions. [2018-09-19 10:01:30,928 INFO L481 AbstractCegarLoop]: Interpolant automaton has 10 states. [2018-09-19 10:01:30,928 INFO L276 IsEmpty]: Start isEmpty. Operand 1954 states and 2362 transitions. [2018-09-19 10:01:30,931 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 194 [2018-09-19 10:01:30,932 INFO L368 BasicCegarLoop]: Found error trace [2018-09-19 10:01:30,932 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-19 10:01:30,932 INFO L423 AbstractCegarLoop]: === Iteration 9 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-19 10:01:30,933 INFO L82 PathProgramCache]: Analyzing trace with hash 1911743527, now seen corresponding path program 1 times [2018-09-19 10:01:30,933 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-19 10:01:30,933 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 194 with the following transitions: [2018-09-19 10:01:30,933 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], [173], [175], [178], [186], [194], [202], [210], [218], [226], [234], [242], [250], [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], [498], [499], [503], [507], [511], [515], [519], [523], [527], [531], [535], [539], [543], [547], [551], [555], [559], [563], [566], [792], [796], [800], [806], [810], [812], [817], [818], [819], [821], [822] [2018-09-19 10:01:30,937 INFO L148 AbstractInterpreter]: Using domain OctagonDomain [2018-09-19 10:01:30,937 INFO L101 FixpointEngine]: Starting fixpoint engine with domain OctagonDomain (maxUnwinding=3, maxParallelStates=1) [2018-09-19 10:01:32,541 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-09-19 10:01:43,187 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-19 10:01:43,188 INFO L272 AbstractInterpreter]: Visited 96 different actions 373 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 10:01:43,200 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-19 10:01:44,061 INFO L232 lantSequenceWeakener]: Weakened 191 states. On average, predicates are now at 73.17% of their original sizes. [2018-09-19 10:01:44,061 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-19 10:01:44,322 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-19 10:01:44,323 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-19 10:01:44,323 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2018-09-19 10:01:44,323 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-19 10:01:44,324 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2018-09-19 10:01:44,324 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2018-09-19 10:01:44,324 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2018-09-19 10:01:44,325 INFO L87 Difference]: Start difference. First operand 1954 states and 2362 transitions. Second operand 10 states. [2018-09-19 10:01:51,786 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-19 10:01:51,787 INFO L93 Difference]: Finished difference Result 3932 states and 4909 transitions. [2018-09-19 10:01:51,789 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2018-09-19 10:01:51,789 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 193 [2018-09-19 10:01:51,790 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-19 10:01:51,798 INFO L225 Difference]: With dead ends: 3932 [2018-09-19 10:01:51,798 INFO L226 Difference]: Without dead ends: 2132 [2018-09-19 10:01:51,802 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 200 GetRequests, 184 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 41 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=74, Invalid=232, Unknown=0, NotChecked=0, Total=306 [2018-09-19 10:01:51,804 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2132 states. [2018-09-19 10:01:51,869 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2132 to 2109. [2018-09-19 10:01:51,869 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2109 states. [2018-09-19 10:01:51,876 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2109 states to 2109 states and 2577 transitions. [2018-09-19 10:01:51,876 INFO L78 Accepts]: Start accepts. Automaton has 2109 states and 2577 transitions. Word has length 193 [2018-09-19 10:01:51,879 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-19 10:01:51,879 INFO L480 AbstractCegarLoop]: Abstraction has 2109 states and 2577 transitions. [2018-09-19 10:01:51,879 INFO L481 AbstractCegarLoop]: Interpolant automaton has 10 states. [2018-09-19 10:01:51,879 INFO L276 IsEmpty]: Start isEmpty. Operand 2109 states and 2577 transitions. [2018-09-19 10:01:51,883 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 203 [2018-09-19 10:01:51,883 INFO L368 BasicCegarLoop]: Found error trace [2018-09-19 10:01:51,885 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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 10:01:51,885 INFO L423 AbstractCegarLoop]: === Iteration 10 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-19 10:01:51,886 INFO L82 PathProgramCache]: Analyzing trace with hash -920465568, now seen corresponding path program 1 times [2018-09-19 10:01:51,886 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-19 10:01:51,886 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 203 with the following transitions: [2018-09-19 10:01:51,886 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], [173], [175], [178], [186], [194], [202], [210], [218], [226], [234], [242], [250], [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], [498], [499], [503], [507], [511], [515], [519], [523], [527], [531], [535], [539], [543], [547], [551], [555], [559], [563], [567], [571], [575], [579], [583], [587], [591], [595], [599], [602], [792], [796], [800], [806], [810], [812], [817], [818], [819], [821], [822] [2018-09-19 10:01:51,889 INFO L148 AbstractInterpreter]: Using domain OctagonDomain [2018-09-19 10:01:51,889 INFO L101 FixpointEngine]: Starting fixpoint engine with domain OctagonDomain (maxUnwinding=3, maxParallelStates=1) [2018-09-19 10:01:53,500 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-09-19 10:02:04,294 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-19 10:02:04,295 INFO L272 AbstractInterpreter]: Visited 105 different actions 407 times. Merged at 7 different actions 20 times. Never widened. Found 4 fixpoints after 1 different actions. Largest state had 24 variables. [2018-09-19 10:02:04,302 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-19 10:02:05,223 INFO L232 lantSequenceWeakener]: Weakened 200 states. On average, predicates are now at 73.15% of their original sizes. [2018-09-19 10:02:05,224 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-19 10:02:05,560 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-19 10:02:05,561 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-19 10:02:05,561 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2018-09-19 10:02:05,561 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-19 10:02:05,561 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2018-09-19 10:02:05,562 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2018-09-19 10:02:05,562 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=81, Unknown=0, NotChecked=0, Total=110 [2018-09-19 10:02:05,562 INFO L87 Difference]: Start difference. First operand 2109 states and 2577 transitions. Second operand 11 states. [2018-09-19 10:02:14,298 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-19 10:02:14,299 INFO L93 Difference]: Finished difference Result 4320 states and 5463 transitions. [2018-09-19 10:02:14,299 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2018-09-19 10:02:14,299 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 202 [2018-09-19 10:02:14,300 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-19 10:02:14,309 INFO L225 Difference]: With dead ends: 4320 [2018-09-19 10:02:14,309 INFO L226 Difference]: Without dead ends: 2365 [2018-09-19 10:02:14,315 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 210 GetRequests, 192 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 55 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=90, Invalid=290, Unknown=0, NotChecked=0, Total=380 [2018-09-19 10:02:14,317 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2365 states. [2018-09-19 10:02:14,391 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2365 to 2262. [2018-09-19 10:02:14,391 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2262 states. [2018-09-19 10:02:14,396 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2262 states to 2262 states and 2792 transitions. [2018-09-19 10:02:14,396 INFO L78 Accepts]: Start accepts. Automaton has 2262 states and 2792 transitions. Word has length 202 [2018-09-19 10:02:14,397 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-19 10:02:14,397 INFO L480 AbstractCegarLoop]: Abstraction has 2262 states and 2792 transitions. [2018-09-19 10:02:14,397 INFO L481 AbstractCegarLoop]: Interpolant automaton has 11 states. [2018-09-19 10:02:14,397 INFO L276 IsEmpty]: Start isEmpty. Operand 2262 states and 2792 transitions. [2018-09-19 10:02:14,401 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 209 [2018-09-19 10:02:14,401 INFO L368 BasicCegarLoop]: Found error trace [2018-09-19 10:02:14,402 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2018-09-19 10:02:14,402 INFO L423 AbstractCegarLoop]: === Iteration 11 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-19 10:02:14,402 INFO L82 PathProgramCache]: Analyzing trace with hash -1653979916, now seen corresponding path program 1 times [2018-09-19 10:02:14,403 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-19 10:02:14,403 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 209 with the following transitions: [2018-09-19 10:02:14,403 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], [173], [175], [178], [186], [194], [202], [210], [218], [226], [234], [242], [250], [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], [498], [499], [503], [507], [511], [515], [519], [523], [527], [531], [535], [539], [543], [547], [551], [555], [559], [563], [567], [571], [575], [579], [583], [587], [591], [595], [599], [603], [607], [611], [615], [619], [623], [626], [792], [796], [800], [806], [810], [812], [817], [818], [819], [821], [822] [2018-09-19 10:02:14,406 INFO L148 AbstractInterpreter]: Using domain OctagonDomain [2018-09-19 10:02:14,406 INFO L101 FixpointEngine]: Starting fixpoint engine with domain OctagonDomain (maxUnwinding=3, maxParallelStates=1) [2018-09-19 10:02:15,779 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-09-19 10:02:24,465 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-19 10:02:24,466 INFO L272 AbstractInterpreter]: Visited 111 different actions 433 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 10:02:24,472 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-19 10:02:25,381 INFO L232 lantSequenceWeakener]: Weakened 206 states. On average, predicates are now at 73.14% of their original sizes. [2018-09-19 10:02:25,381 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-19 10:02:25,737 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-19 10:02:25,738 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-19 10:02:25,738 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2018-09-19 10:02:25,738 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-19 10:02:25,738 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2018-09-19 10:02:25,739 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2018-09-19 10:02:25,739 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=81, Unknown=0, NotChecked=0, Total=110 [2018-09-19 10:02:25,739 INFO L87 Difference]: Start difference. First operand 2262 states and 2792 transitions. Second operand 11 states. [2018-09-19 10:02:35,668 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-19 10:02:35,668 INFO L93 Difference]: Finished difference Result 4808 states and 6139 transitions. [2018-09-19 10:02:35,668 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2018-09-19 10:02:35,668 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 208 [2018-09-19 10:02:35,669 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-19 10:02:35,680 INFO L225 Difference]: With dead ends: 4808 [2018-09-19 10:02:35,680 INFO L226 Difference]: Without dead ends: 2700 [2018-09-19 10:02:35,686 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 216 GetRequests, 198 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 55 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=90, Invalid=290, Unknown=0, NotChecked=0, Total=380 [2018-09-19 10:02:35,688 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2700 states. [2018-09-19 10:02:35,770 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2700 to 2670. [2018-09-19 10:02:35,770 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2670 states. [2018-09-19 10:02:35,776 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2670 states to 2670 states and 3328 transitions. [2018-09-19 10:02:35,776 INFO L78 Accepts]: Start accepts. Automaton has 2670 states and 3328 transitions. Word has length 208 [2018-09-19 10:02:35,777 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-19 10:02:35,777 INFO L480 AbstractCegarLoop]: Abstraction has 2670 states and 3328 transitions. [2018-09-19 10:02:35,777 INFO L481 AbstractCegarLoop]: Interpolant automaton has 11 states. [2018-09-19 10:02:35,777 INFO L276 IsEmpty]: Start isEmpty. Operand 2670 states and 3328 transitions. [2018-09-19 10:02:35,782 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 216 [2018-09-19 10:02:35,782 INFO L368 BasicCegarLoop]: Found error trace [2018-09-19 10:02:35,782 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2018-09-19 10:02:35,783 INFO L423 AbstractCegarLoop]: === Iteration 12 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-19 10:02:35,783 INFO L82 PathProgramCache]: Analyzing trace with hash 1857006299, now seen corresponding path program 1 times [2018-09-19 10:02:35,783 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-19 10:02:35,783 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 216 with the following transitions: [2018-09-19 10:02:35,784 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], [173], [175], [178], [186], [194], [202], [210], [218], [226], [234], [242], [250], [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], [498], [499], [503], [507], [511], [515], [519], [523], [527], [531], [535], [539], [543], [547], [551], [555], [559], [563], [567], [571], [575], [579], [583], [587], [591], [595], [599], [603], [607], [611], [615], [619], [623], [627], [631], [635], [639], [643], [647], [651], [654], [792], [796], [800], [806], [810], [812], [817], [818], [819], [821], [822] [2018-09-19 10:02:35,787 INFO L148 AbstractInterpreter]: Using domain OctagonDomain [2018-09-19 10:02:35,787 INFO L101 FixpointEngine]: Starting fixpoint engine with domain OctagonDomain (maxUnwinding=3, maxParallelStates=1) [2018-09-19 10:02:37,355 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-09-19 10:02:47,565 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-19 10:02:47,565 INFO L272 AbstractInterpreter]: Visited 118 different actions 459 times. Merged at 7 different actions 20 times. Never widened. Found 4 fixpoints after 1 different actions. Largest state had 24 variables. [2018-09-19 10:02:47,572 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-19 10:02:48,523 INFO L232 lantSequenceWeakener]: Weakened 213 states. On average, predicates are now at 73.13% of their original sizes. [2018-09-19 10:02:48,524 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-19 10:02:48,877 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-19 10:02:48,877 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-19 10:02:48,877 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2018-09-19 10:02:48,878 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-19 10:02:48,878 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2018-09-19 10:02:48,878 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2018-09-19 10:02:48,878 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=81, Unknown=0, NotChecked=0, Total=110 [2018-09-19 10:02:48,879 INFO L87 Difference]: Start difference. First operand 2670 states and 3328 transitions. Second operand 11 states. [2018-09-19 10:02:55,996 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-19 10:02:55,997 INFO L93 Difference]: Finished difference Result 5752 states and 7377 transitions. [2018-09-19 10:02:55,998 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2018-09-19 10:02:55,998 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 215 [2018-09-19 10:02:55,999 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-19 10:02:56,014 INFO L225 Difference]: With dead ends: 5752 [2018-09-19 10:02:56,014 INFO L226 Difference]: Without dead ends: 3236 [2018-09-19 10:02:56,024 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 223 GetRequests, 205 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 55 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=90, Invalid=290, Unknown=0, NotChecked=0, Total=380 [2018-09-19 10:02:56,029 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3236 states. [2018-09-19 10:02:56,139 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3236 to 3129. [2018-09-19 10:02:56,139 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3129 states. [2018-09-19 10:02:56,146 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3129 states to 3129 states and 3930 transitions. [2018-09-19 10:02:56,146 INFO L78 Accepts]: Start accepts. Automaton has 3129 states and 3930 transitions. Word has length 215 [2018-09-19 10:02:56,147 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-19 10:02:56,147 INFO L480 AbstractCegarLoop]: Abstraction has 3129 states and 3930 transitions. [2018-09-19 10:02:56,147 INFO L481 AbstractCegarLoop]: Interpolant automaton has 11 states. [2018-09-19 10:02:56,147 INFO L276 IsEmpty]: Start isEmpty. Operand 3129 states and 3930 transitions. [2018-09-19 10:02:56,152 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 219 [2018-09-19 10:02:56,153 INFO L368 BasicCegarLoop]: Found error trace [2018-09-19 10:02:56,153 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2018-09-19 10:02:56,153 INFO L423 AbstractCegarLoop]: === Iteration 13 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-19 10:02:56,154 INFO L82 PathProgramCache]: Analyzing trace with hash -1848492480, now seen corresponding path program 1 times [2018-09-19 10:02:56,154 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-19 10:02:56,154 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 219 with the following transitions: [2018-09-19 10:02:56,154 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], [173], [175], [178], [186], [194], [202], [210], [218], [226], [234], [242], [250], [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], [498], [499], [503], [507], [511], [515], [519], [523], [527], [531], [535], [539], [543], [547], [551], [555], [559], [563], [567], [571], [575], [579], [583], [587], [591], [595], [599], [603], [607], [611], [615], [619], [623], [627], [631], [635], [639], [643], [647], [651], [655], [659], [663], [666], [792], [796], [800], [806], [810], [812], [817], [818], [819], [821], [822] [2018-09-19 10:02:56,157 INFO L148 AbstractInterpreter]: Using domain OctagonDomain [2018-09-19 10:02:56,158 INFO L101 FixpointEngine]: Starting fixpoint engine with domain OctagonDomain (maxUnwinding=3, maxParallelStates=1) [2018-09-19 10:02:57,720 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-09-19 10:03:08,167 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-19 10:03:08,168 INFO L272 AbstractInterpreter]: Visited 121 different actions 471 times. Merged at 7 different actions 20 times. Never widened. Found 4 fixpoints after 1 different actions. Largest state had 24 variables. [2018-09-19 10:03:08,178 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-19 10:03:09,089 INFO L232 lantSequenceWeakener]: Weakened 216 states. On average, predicates are now at 73.12% of their original sizes. [2018-09-19 10:03:09,089 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-19 10:03:09,540 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-19 10:03:09,540 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-19 10:03:09,541 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2018-09-19 10:03:09,541 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-19 10:03:09,541 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2018-09-19 10:03:09,542 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2018-09-19 10:03:09,542 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=116, Unknown=0, NotChecked=0, Total=156 [2018-09-19 10:03:09,542 INFO L87 Difference]: Start difference. First operand 3129 states and 3930 transitions. Second operand 13 states. [2018-09-19 10:03:20,541 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-19 10:03:20,541 INFO L93 Difference]: Finished difference Result 6701 states and 8709 transitions. [2018-09-19 10:03:20,546 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2018-09-19 10:03:20,546 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 218 [2018-09-19 10:03:20,547 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-19 10:03:20,561 INFO L225 Difference]: With dead ends: 6701 [2018-09-19 10:03:20,562 INFO L226 Difference]: Without dead ends: 3726 [2018-09-19 10:03:20,569 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 230 GetRequests, 206 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 119 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=148, Invalid=502, Unknown=0, NotChecked=0, Total=650 [2018-09-19 10:03:20,573 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3726 states. [2018-09-19 10:03:20,686 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3726 to 3529. [2018-09-19 10:03:20,686 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3529 states. [2018-09-19 10:03:20,693 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3529 states to 3529 states and 4443 transitions. [2018-09-19 10:03:20,693 INFO L78 Accepts]: Start accepts. Automaton has 3529 states and 4443 transitions. Word has length 218 [2018-09-19 10:03:20,694 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-19 10:03:20,694 INFO L480 AbstractCegarLoop]: Abstraction has 3529 states and 4443 transitions. [2018-09-19 10:03:20,694 INFO L481 AbstractCegarLoop]: Interpolant automaton has 13 states. [2018-09-19 10:03:20,694 INFO L276 IsEmpty]: Start isEmpty. Operand 3529 states and 4443 transitions. [2018-09-19 10:03:20,699 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 224 [2018-09-19 10:03:20,699 INFO L368 BasicCegarLoop]: Found error trace [2018-09-19 10:03:20,699 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-19 10:03:20,700 INFO L423 AbstractCegarLoop]: === Iteration 14 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-19 10:03:20,700 INFO L82 PathProgramCache]: Analyzing trace with hash 1975821299, now seen corresponding path program 1 times [2018-09-19 10:03:20,700 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-19 10:03:20,700 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 224 with the following transitions: [2018-09-19 10:03:20,701 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], [173], [175], [178], [186], [194], [202], [210], [218], [226], [234], [242], [250], [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], [506], [507], [511], [515], [519], [523], [527], [531], [535], [539], [543], [547], [551], [555], [559], [563], [567], [571], [575], [579], [583], [587], [591], [595], [599], [603], [607], [611], [615], [619], [623], [627], [631], [635], [639], [643], [647], [651], [655], [659], [663], [667], [671], [675], [678], [792], [796], [800], [806], [810], [812], [817], [818], [819], [821], [822] [2018-09-19 10:03:20,704 INFO L148 AbstractInterpreter]: Using domain OctagonDomain [2018-09-19 10:03:20,704 INFO L101 FixpointEngine]: Starting fixpoint engine with domain OctagonDomain (maxUnwinding=3, maxParallelStates=1) [2018-09-19 10:03:23,810 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-09-19 10:03:36,254 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-19 10:03:36,254 INFO L272 AbstractInterpreter]: Visited 124 different actions 603 times. Merged at 7 different actions 27 times. Never widened. Found 5 fixpoints after 1 different actions. Largest state had 24 variables. [2018-09-19 10:03:36,261 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-19 10:03:37,198 INFO L232 lantSequenceWeakener]: Weakened 221 states. On average, predicates are now at 73.11% of their original sizes. [2018-09-19 10:03:37,198 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-19 10:03:37,478 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-19 10:03:37,478 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-19 10:03:37,478 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2018-09-19 10:03:37,478 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-19 10:03:37,479 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2018-09-19 10:03:37,479 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2018-09-19 10:03:37,479 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2018-09-19 10:03:37,480 INFO L87 Difference]: Start difference. First operand 3529 states and 4443 transitions. Second operand 10 states. Received shutdown request... [2018-09-19 10:03:42,400 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2018-09-19 10:03:42,401 WARN L549 AbstractCegarLoop]: Verification canceled [2018-09-19 10:03:42,408 WARN L206 ceAbstractionStarter]: Timeout [2018-09-19 10:03:42,408 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.09 10:03:42 BoogieIcfgContainer [2018-09-19 10:03:42,409 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-09-19 10:03:42,410 INFO L168 Benchmark]: Toolchain (without parser) took 258969.85 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 2.5 GB in the end (delta: -1.1 GB). Peak memory consumption was 1.5 GB. Max. memory is 7.1 GB. [2018-09-19 10:03:42,412 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 10:03:42,412 INFO L168 Benchmark]: CACSL2BoogieTranslator took 754.84 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. [2018-09-19 10:03:42,413 INFO L168 Benchmark]: Boogie Procedure Inliner took 137.61 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. [2018-09-19 10:03:42,414 INFO L168 Benchmark]: Boogie Preprocessor took 254.59 ms. Allocated memory was 1.5 GB in the beginning and 2.2 GB in the end (delta: 730.9 MB). Free memory was 1.3 GB in the beginning and 2.2 GB in the end (delta: -823.1 MB). Peak memory consumption was 29.0 MB. Max. memory is 7.1 GB. [2018-09-19 10:03:42,415 INFO L168 Benchmark]: RCFGBuilder took 3316.54 ms. Allocated memory is still 2.2 GB. Free memory was 2.2 GB in the beginning and 2.0 GB in the end (delta: 110.5 MB). Peak memory consumption was 110.5 MB. Max. memory is 7.1 GB. [2018-09-19 10:03:42,415 INFO L168 Benchmark]: TraceAbstraction took 254494.82 ms. Allocated memory was 2.2 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 2.5 GB in the end (delta: -434.9 MB). Peak memory consumption was 1.5 GB. Max. memory is 7.1 GB. [2018-09-19 10:03:42,420 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 754.84 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 137.61 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 254.59 ms. Allocated memory was 1.5 GB in the beginning and 2.2 GB in the end (delta: 730.9 MB). Free memory was 1.3 GB in the beginning and 2.2 GB in the end (delta: -823.1 MB). Peak memory consumption was 29.0 MB. Max. memory is 7.1 GB. * RCFGBuilder took 3316.54 ms. Allocated memory is still 2.2 GB. Free memory was 2.2 GB in the beginning and 2.0 GB in the end (delta: 110.5 MB). Peak memory consumption was 110.5 MB. Max. memory is 7.1 GB. * TraceAbstraction took 254494.82 ms. Allocated memory was 2.2 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 2.5 GB in the end (delta: -434.9 MB). Peak memory consumption was 1.5 GB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResultAtElement [Line: 85]: Timeout (TraceAbstraction) Unable to prove that call of __VERIFIER_error() unreachable (line 85). Cancelled while BasicCegarLoop was constructing difference of abstraction (3529states) and FLOYD_HOARE automaton (currently 16 states, 10 states before enhancement), while ReachableStatesComputation was computing reachable states (994 states constructedinput type IntersectNwa). - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 216 locations, 1 error locations. TIMEOUT Result, 254.4s OverallTime, 14 OverallIterations, 3 TraceHistogramMax, 105.1s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 2560 SDtfs, 10572 SDslu, 5359 SDs, 0 SdLazy, 28521 SolverSat, 2387 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 91.6s Time, PredicateUnifierStatistics: 28 DeclaredPredicates, 2489 GetRequests, 2247 SyntacticMatches, 0 SemanticMatches, 242 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 812 ImplicationChecksByTransitivity, 10.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=3529occurred in iteration=13, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 130.3s AbstIntTime, 14 AbstIntIterations, 14 AbstIntStrong, 0.9936715912429235 AbsIntWeakeningRatio, 0.13851351351351351 AbsIntAvgWeakeningVarsNumRemoved, 873.5396959459459 AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.9s AutomataMinimizationTime, 13 MinimizatonAttempts, 765 StatesRemovedByMinimization, 13 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: No data available, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Written .csv to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/csv/Problem10_label21_true-unreach-call.c_svcomp-Reach-64bit-ToothlessTaipan_OCT-OldIcfg.epf_AutomizerCInline.xml/Csv-Benchmark-0-2018-09-19_10-03-42-434.csv Written .csv to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/csv/Problem10_label21_true-unreach-call.c_svcomp-Reach-64bit-ToothlessTaipan_OCT-OldIcfg.epf_AutomizerCInline.xml/Csv-TraceAbstractionBenchmarks-0-2018-09-19_10-03-42-434.csv Completed graceful shutdown