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_label03_true-unreach-call.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-69f5bdd-m [2018-09-19 09:54:19,555 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-09-19 09:54:19,557 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-09-19 09:54:19,570 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-09-19 09:54:19,571 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-09-19 09:54:19,572 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-09-19 09:54:19,573 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-09-19 09:54:19,575 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-09-19 09:54:19,577 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-09-19 09:54:19,578 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-09-19 09:54:19,578 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-09-19 09:54:19,579 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-09-19 09:54:19,580 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-09-19 09:54:19,581 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-09-19 09:54:19,582 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-09-19 09:54:19,583 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-09-19 09:54:19,584 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-09-19 09:54:19,586 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-09-19 09:54:19,588 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-09-19 09:54:19,589 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-09-19 09:54:19,593 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-09-19 09:54:19,595 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-09-19 09:54:19,601 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-09-19 09:54:19,601 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-09-19 09:54:19,601 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-09-19 09:54:19,605 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-09-19 09:54:19,606 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-09-19 09:54:19,607 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-09-19 09:54:19,612 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-09-19 09:54:19,614 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-09-19 09:54:19,614 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-09-19 09:54:19,615 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... 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[2018-09-19 09:54:19,621 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 09:54:19,652 INFO L110 SettingsManager]: Loading preferences was successful [2018-09-19 09:54:19,652 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-09-19 09:54:19,654 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-09-19 09:54:19,654 INFO L133 SettingsManager]: * User list type=DISABLED [2018-09-19 09:54:19,654 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-09-19 09:54:19,655 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-09-19 09:54:19,655 INFO L133 SettingsManager]: * Congruence Domain=false [2018-09-19 09:54:19,655 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-09-19 09:54:19,655 INFO L133 SettingsManager]: * Abstract domain=OctagonDomain [2018-09-19 09:54:19,655 INFO L133 SettingsManager]: * Log string format=TERM [2018-09-19 09:54:19,656 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-09-19 09:54:19,656 INFO L133 SettingsManager]: * Parallel states before merging=1 [2018-09-19 09:54:19,656 INFO L133 SettingsManager]: * Interval Domain=false [2018-09-19 09:54:19,657 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-09-19 09:54:19,657 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-09-19 09:54:19,657 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-09-19 09:54:19,657 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-09-19 09:54:19,658 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-09-19 09:54:19,658 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-09-19 09:54:19,658 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-09-19 09:54:19,658 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-09-19 09:54:19,658 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-09-19 09:54:19,658 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-09-19 09:54:19,659 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-09-19 09:54:19,659 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-09-19 09:54:19,659 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-09-19 09:54:19,659 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-09-19 09:54:19,661 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-09-19 09:54:19,661 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-09-19 09:54:19,662 INFO L133 SettingsManager]: * Trace refinement strategy=TOOTHLESS_TAIPAN [2018-09-19 09:54:19,662 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-09-19 09:54:19,662 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-09-19 09:54:19,662 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-09-19 09:54:19,662 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-09-19 09:54:19,663 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-09-19 09:54:19,715 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-09-19 09:54:19,732 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-09-19 09:54:19,737 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-09-19 09:54:19,739 INFO L271 PluginConnector]: Initializing CDTParser... [2018-09-19 09:54:19,739 INFO L276 PluginConnector]: CDTParser initialized [2018-09-19 09:54:19,740 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem10_label03_true-unreach-call.c [2018-09-19 09:54:20,111 INFO L221 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/85756d2bc/d647cc4d19724df09cb5b30cc821adcf/FLAG37cfd0946 [2018-09-19 09:54:20,393 INFO L277 CDTParser]: Found 1 translation units. [2018-09-19 09:54:20,395 INFO L159 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem10_label03_true-unreach-call.c [2018-09-19 09:54:20,413 INFO L325 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/85756d2bc/d647cc4d19724df09cb5b30cc821adcf/FLAG37cfd0946 [2018-09-19 09:54:20,438 INFO L333 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/85756d2bc/d647cc4d19724df09cb5b30cc821adcf [2018-09-19 09:54:20,447 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-09-19 09:54:20,450 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-09-19 09:54:20,451 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-09-19 09:54:20,452 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-09-19 09:54:20,459 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-09-19 09:54:20,460 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.09 09:54:20" (1/1) ... [2018-09-19 09:54:20,463 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@719bd2be and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 09:54:20, skipping insertion in model container [2018-09-19 09:54:20,464 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.09 09:54:20" (1/1) ... [2018-09-19 09:54:20,476 INFO L160 ieTranslatorObserver]: Starting translation in SV-COMP mode [2018-09-19 09:54:21,010 INFO L170 PostProcessor]: Settings: Checked method=main [2018-09-19 09:54:21,033 INFO L424 MainDispatcher]: Starting main dispatcher in SV-COMP mode [2018-09-19 09:54:21,152 INFO L170 PostProcessor]: Settings: Checked method=main [2018-09-19 09:54:21,208 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 09:54:21 WrapperNode [2018-09-19 09:54:21,208 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-09-19 09:54:21,209 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-09-19 09:54:21,209 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-09-19 09:54:21,210 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-09-19 09:54:21,220 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 09:54:21" (1/1) ... [2018-09-19 09:54:21,246 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 09:54:21" (1/1) ... [2018-09-19 09:54:21,321 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-09-19 09:54:21,322 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-09-19 09:54:21,322 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-09-19 09:54:21,322 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-09-19 09:54:21,484 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 09:54:21" (1/1) ... [2018-09-19 09:54:21,485 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 09:54:21" (1/1) ... [2018-09-19 09:54:21,491 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 09:54:21" (1/1) ... [2018-09-19 09:54:21,492 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 09:54:21" (1/1) ... [2018-09-19 09:54:21,519 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 09:54:21" (1/1) ... [2018-09-19 09:54:21,533 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 09:54:21" (1/1) ... [2018-09-19 09:54:21,540 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 09:54:21" (1/1) ... [2018-09-19 09:54:21,550 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-09-19 09:54:21,551 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-09-19 09:54:21,551 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-09-19 09:54:21,552 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-09-19 09:54:21,553 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 09:54:21" (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 09:54:21,639 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-09-19 09:54:21,639 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-09-19 09:54:21,639 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2018-09-19 09:54:21,639 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2018-09-19 09:54:21,640 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-09-19 09:54:21,640 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-09-19 09:54:21,640 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-09-19 09:54:21,640 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-09-19 09:54:24,693 INFO L356 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-09-19 09:54:24,694 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.09 09:54:24 BoogieIcfgContainer [2018-09-19 09:54:24,695 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-09-19 09:54:24,696 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-09-19 09:54:24,696 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-09-19 09:54:24,699 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-09-19 09:54:24,700 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.09 09:54:20" (1/3) ... [2018-09-19 09:54:24,701 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@e220b14 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.09 09:54:24, skipping insertion in model container [2018-09-19 09:54:24,701 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 09:54:21" (2/3) ... [2018-09-19 09:54:24,702 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@e220b14 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.09 09:54:24, skipping insertion in model container [2018-09-19 09:54:24,702 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.09 09:54:24" (3/3) ... [2018-09-19 09:54:24,704 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem10_label03_true-unreach-call.c [2018-09-19 09:54:24,715 INFO L137 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-09-19 09:54:24,724 INFO L149 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-09-19 09:54:24,789 INFO L130 ementStrategyFactory]: Using default assertion order modulation [2018-09-19 09:54:24,790 INFO L381 AbstractCegarLoop]: Interprodecural is true [2018-09-19 09:54:24,790 INFO L382 AbstractCegarLoop]: Hoare is true [2018-09-19 09:54:24,791 INFO L383 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-09-19 09:54:24,791 INFO L384 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-09-19 09:54:24,791 INFO L385 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-09-19 09:54:24,791 INFO L386 AbstractCegarLoop]: Difference is false [2018-09-19 09:54:24,791 INFO L387 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-09-19 09:54:24,792 INFO L392 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-09-19 09:54:24,827 INFO L276 IsEmpty]: Start isEmpty. Operand 216 states. [2018-09-19 09:54:24,842 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2018-09-19 09:54:24,842 INFO L368 BasicCegarLoop]: Found error trace [2018-09-19 09:54:24,844 INFO L376 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-19 09:54:24,846 INFO L423 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-19 09:54:24,852 INFO L82 PathProgramCache]: Analyzing trace with hash 1405656705, now seen corresponding path program 1 times [2018-09-19 09:54:24,855 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-19 09:54:24,857 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 44 with the following transitions: [2018-09-19 09:54:24,860 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [9], [17], [25], [33], [41], [49], [57], [65], [73], [81], [89], [97], [105], [113], [121], [129], [137], [145], [153], [161], [169], [177], [185], [193], [201], [209], [217], [225], [233], [241], [245], [247], [796], [800], [806], [810], [817], [818], [819], [821] [2018-09-19 09:54:24,918 INFO L148 AbstractInterpreter]: Using domain OctagonDomain [2018-09-19 09:54:24,919 INFO L101 FixpointEngine]: Starting fixpoint engine with domain OctagonDomain (maxUnwinding=3, maxParallelStates=1) [2018-09-19 09:54:26,091 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-19 09:54:26,093 INFO L272 AbstractInterpreter]: Visited 42 different actions 42 times. Never merged. Never widened. Never found a fixpoint. Largest state had 23 variables. [2018-09-19 09:54:26,110 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-19 09:54:26,625 INFO L232 lantSequenceWeakener]: Weakened 41 states. On average, predicates are now at 75.36% of their original sizes. [2018-09-19 09:54:26,626 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-19 09:54:26,957 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-19 09:54:26,961 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-19 09:54:26,961 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-09-19 09:54:26,962 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-19 09:54:26,972 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-09-19 09:54:26,981 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-09-19 09:54:26,982 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2018-09-19 09:54:26,986 INFO L87 Difference]: Start difference. First operand 216 states. Second operand 6 states. [2018-09-19 09:54:30,351 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-19 09:54:30,352 INFO L93 Difference]: Finished difference Result 576 states and 995 transitions. [2018-09-19 09:54:30,352 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-09-19 09:54:30,354 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 43 [2018-09-19 09:54:30,355 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-19 09:54:30,372 INFO L225 Difference]: With dead ends: 576 [2018-09-19 09:54:30,372 INFO L226 Difference]: Without dead ends: 358 [2018-09-19 09:54:30,379 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 42 GetRequests, 38 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2018-09-19 09:54:30,396 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 358 states. [2018-09-19 09:54:30,448 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 358 to 356. [2018-09-19 09:54:30,449 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 356 states. [2018-09-19 09:54:30,452 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 356 states to 356 states and 497 transitions. [2018-09-19 09:54:30,454 INFO L78 Accepts]: Start accepts. Automaton has 356 states and 497 transitions. Word has length 43 [2018-09-19 09:54:30,454 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-19 09:54:30,455 INFO L480 AbstractCegarLoop]: Abstraction has 356 states and 497 transitions. [2018-09-19 09:54:30,455 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-09-19 09:54:30,455 INFO L276 IsEmpty]: Start isEmpty. Operand 356 states and 497 transitions. [2018-09-19 09:54:30,461 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2018-09-19 09:54:30,461 INFO L368 BasicCegarLoop]: Found error trace [2018-09-19 09:54:30,461 INFO L376 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 09:54:30,462 INFO L423 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-19 09:54:30,462 INFO L82 PathProgramCache]: Analyzing trace with hash -1018978157, now seen corresponding path program 1 times [2018-09-19 09:54:30,462 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-19 09:54:30,462 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 115 with the following transitions: [2018-09-19 09:54:30,463 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [9], [17], [25], [33], [41], [49], [57], [65], [73], [81], [89], [97], [105], [113], [121], [129], [137], [145], [153], [161], [169], [177], [185], [193], [201], [209], [217], [225], [233], [241], [245], [247], [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 09:54:30,471 INFO L148 AbstractInterpreter]: Using domain OctagonDomain [2018-09-19 09:54:30,471 INFO L101 FixpointEngine]: Starting fixpoint engine with domain OctagonDomain (maxUnwinding=3, maxParallelStates=1) [2018-09-19 09:54:31,914 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-09-19 09:54:34,830 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-19 09:54:34,831 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 09:54:34,836 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-19 09:54:35,746 INFO L232 lantSequenceWeakener]: Weakened 112 states. On average, predicates are now at 73.77% of their original sizes. [2018-09-19 09:54:35,747 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-19 09:54:36,158 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-19 09:54:36,158 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-19 09:54:36,159 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2018-09-19 09:54:36,159 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-19 09:54:36,160 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2018-09-19 09:54:36,160 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2018-09-19 09:54:36,161 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2018-09-19 09:54:36,161 INFO L87 Difference]: Start difference. First operand 356 states and 497 transitions. Second operand 10 states. [2018-09-19 09:54:41,982 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-19 09:54:41,982 INFO L93 Difference]: Finished difference Result 717 states and 1132 transitions. [2018-09-19 09:54:41,986 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2018-09-19 09:54:41,986 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 114 [2018-09-19 09:54:41,987 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-19 09:54:41,995 INFO L225 Difference]: With dead ends: 717 [2018-09-19 09:54:41,995 INFO L226 Difference]: Without dead ends: 511 [2018-09-19 09:54:41,998 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 120 GetRequests, 105 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 33 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=68, Invalid=204, Unknown=0, NotChecked=0, Total=272 [2018-09-19 09:54:41,999 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 511 states. [2018-09-19 09:54:42,045 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 511 to 505. [2018-09-19 09:54:42,045 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 505 states. [2018-09-19 09:54:42,047 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 505 states to 505 states and 669 transitions. [2018-09-19 09:54:42,048 INFO L78 Accepts]: Start accepts. Automaton has 505 states and 669 transitions. Word has length 114 [2018-09-19 09:54:42,049 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-19 09:54:42,049 INFO L480 AbstractCegarLoop]: Abstraction has 505 states and 669 transitions. [2018-09-19 09:54:42,050 INFO L481 AbstractCegarLoop]: Interpolant automaton has 10 states. [2018-09-19 09:54:42,050 INFO L276 IsEmpty]: Start isEmpty. Operand 505 states and 669 transitions. [2018-09-19 09:54:42,060 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 124 [2018-09-19 09:54:42,060 INFO L368 BasicCegarLoop]: Found error trace [2018-09-19 09:54:42,060 INFO L376 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 09:54:42,061 INFO L423 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-19 09:54:42,061 INFO L82 PathProgramCache]: Analyzing trace with hash -1444484276, now seen corresponding path program 1 times [2018-09-19 09:54:42,061 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-19 09:54:42,062 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 124 with the following transitions: [2018-09-19 09:54:42,062 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [9], [17], [25], [33], [41], [49], [57], [65], [73], [81], [89], [97], [105], [113], [121], [129], [137], [145], [153], [161], [169], [177], [185], [193], [201], [209], [217], [225], [233], [241], [245], [247], [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 09:54:42,069 INFO L148 AbstractInterpreter]: Using domain OctagonDomain [2018-09-19 09:54:42,070 INFO L101 FixpointEngine]: Starting fixpoint engine with domain OctagonDomain (maxUnwinding=3, maxParallelStates=1) [2018-09-19 09:54:46,181 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-09-19 09:54:48,024 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-19 09:54:48,024 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 09:54:48,033 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-19 09:54:48,805 INFO L232 lantSequenceWeakener]: Weakened 121 states. On average, predicates are now at 73.69% of their original sizes. [2018-09-19 09:54:48,806 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-19 09:54:50,358 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-19 09:54:50,358 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-19 09:54:50,359 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2018-09-19 09:54:50,359 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-19 09:54:50,359 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2018-09-19 09:54:50,360 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2018-09-19 09:54:50,360 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=116, Unknown=0, NotChecked=0, Total=156 [2018-09-19 09:54:50,360 INFO L87 Difference]: Start difference. First operand 505 states and 669 transitions. Second operand 13 states. [2018-09-19 09:54:59,580 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-19 09:54:59,580 INFO L93 Difference]: Finished difference Result 1333 states and 2096 transitions. [2018-09-19 09:54:59,584 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2018-09-19 09:54:59,585 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 123 [2018-09-19 09:54:59,586 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-19 09:54:59,591 INFO L225 Difference]: With dead ends: 1333 [2018-09-19 09:54:59,591 INFO L226 Difference]: Without dead ends: 978 [2018-09-19 09:54:59,594 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 137 GetRequests, 111 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 152 ImplicationChecksByTransitivity, 2.1s TimeCoverageRelationStatistics Valid=164, Invalid=592, Unknown=0, NotChecked=0, Total=756 [2018-09-19 09:54:59,595 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 978 states. [2018-09-19 09:54:59,629 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 978 to 762. [2018-09-19 09:54:59,629 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 762 states. [2018-09-19 09:54:59,632 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 762 states to 762 states and 953 transitions. [2018-09-19 09:54:59,632 INFO L78 Accepts]: Start accepts. Automaton has 762 states and 953 transitions. Word has length 123 [2018-09-19 09:54:59,633 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-19 09:54:59,633 INFO L480 AbstractCegarLoop]: Abstraction has 762 states and 953 transitions. [2018-09-19 09:54:59,633 INFO L481 AbstractCegarLoop]: Interpolant automaton has 13 states. [2018-09-19 09:54:59,633 INFO L276 IsEmpty]: Start isEmpty. Operand 762 states and 953 transitions. [2018-09-19 09:54:59,637 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 160 [2018-09-19 09:54:59,637 INFO L368 BasicCegarLoop]: Found error trace [2018-09-19 09:54:59,638 INFO L376 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 09:54:59,638 INFO L423 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-19 09:54:59,645 INFO L82 PathProgramCache]: Analyzing trace with hash 1342877780, now seen corresponding path program 1 times [2018-09-19 09:54:59,645 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-19 09:54:59,645 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 160 with the following transitions: [2018-09-19 09:54:59,646 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [9], [17], [25], [33], [41], [49], [57], [65], [73], [81], [89], [97], [105], [113], [121], [129], [137], [145], [153], [161], [169], [177], [185], [193], [201], [209], [217], [225], [233], [241], [245], [247], [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 09:54:59,650 INFO L148 AbstractInterpreter]: Using domain OctagonDomain [2018-09-19 09:54:59,651 INFO L101 FixpointEngine]: Starting fixpoint engine with domain OctagonDomain (maxUnwinding=3, maxParallelStates=1) [2018-09-19 09:55:02,407 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-09-19 09:55:08,810 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-19 09:55:08,810 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 09:55:08,816 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-19 09:55:09,754 INFO L232 lantSequenceWeakener]: Weakened 157 states. On average, predicates are now at 73.47% of their original sizes. [2018-09-19 09:55:09,755 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-19 09:55:10,921 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-19 09:55:10,921 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-19 09:55:10,921 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2018-09-19 09:55:10,922 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-19 09:55:10,922 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2018-09-19 09:55:10,922 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2018-09-19 09:55:10,923 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=98, Unknown=0, NotChecked=0, Total=132 [2018-09-19 09:55:10,923 INFO L87 Difference]: Start difference. First operand 762 states and 953 transitions. Second operand 12 states. [2018-09-19 09:55:16,873 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-19 09:55:16,873 INFO L93 Difference]: Finished difference Result 1677 states and 2220 transitions. [2018-09-19 09:55:16,874 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2018-09-19 09:55:16,874 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 159 [2018-09-19 09:55:16,875 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-19 09:55:16,881 INFO L225 Difference]: With dead ends: 1677 [2018-09-19 09:55:16,881 INFO L226 Difference]: Without dead ends: 1067 [2018-09-19 09:55:16,884 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 167 GetRequests, 148 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 65 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=101, Invalid=319, Unknown=0, NotChecked=0, Total=420 [2018-09-19 09:55:16,885 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1067 states. [2018-09-19 09:55:16,920 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1067 to 1056. [2018-09-19 09:55:16,920 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1056 states. [2018-09-19 09:55:16,924 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1056 states to 1056 states and 1287 transitions. [2018-09-19 09:55:16,924 INFO L78 Accepts]: Start accepts. Automaton has 1056 states and 1287 transitions. Word has length 159 [2018-09-19 09:55:16,925 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-19 09:55:16,925 INFO L480 AbstractCegarLoop]: Abstraction has 1056 states and 1287 transitions. [2018-09-19 09:55:16,925 INFO L481 AbstractCegarLoop]: Interpolant automaton has 12 states. [2018-09-19 09:55:16,925 INFO L276 IsEmpty]: Start isEmpty. Operand 1056 states and 1287 transitions. [2018-09-19 09:55:16,928 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 179 [2018-09-19 09:55:16,928 INFO L368 BasicCegarLoop]: Found error trace [2018-09-19 09:55:16,929 INFO L376 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 09:55:16,929 INFO L423 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-19 09:55:16,929 INFO L82 PathProgramCache]: Analyzing trace with hash -1331084013, now seen corresponding path program 1 times [2018-09-19 09:55:16,929 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-19 09:55:16,930 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 179 with the following transitions: [2018-09-19 09:55:16,930 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [9], [17], [25], [33], [41], [49], [57], [65], [73], [81], [89], [97], [105], [113], [121], [129], [137], [145], [153], [161], [169], [177], [185], [193], [201], [209], [217], [225], [233], [241], [245], [247], [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 09:55:16,935 INFO L148 AbstractInterpreter]: Using domain OctagonDomain [2018-09-19 09:55:16,936 INFO L101 FixpointEngine]: Starting fixpoint engine with domain OctagonDomain (maxUnwinding=3, maxParallelStates=1) [2018-09-19 09:55:27,567 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-19 09:55:27,567 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 09:55:27,577 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-19 09:55:28,407 INFO L232 lantSequenceWeakener]: Weakened 176 states. On average, predicates are now at 73.39% of their original sizes. [2018-09-19 09:55:28,407 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-19 09:55:28,776 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-19 09:55:28,776 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-19 09:55:28,776 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2018-09-19 09:55:28,776 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-19 09:55:28,777 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2018-09-19 09:55:28,777 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2018-09-19 09:55:28,777 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=98, Unknown=0, NotChecked=0, Total=132 [2018-09-19 09:55:28,778 INFO L87 Difference]: Start difference. First operand 1056 states and 1287 transitions. Second operand 12 states. [2018-09-19 09:55:33,520 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-19 09:55:33,521 INFO L93 Difference]: Finished difference Result 2268 states and 2899 transitions. [2018-09-19 09:55:33,522 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2018-09-19 09:55:33,522 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 178 [2018-09-19 09:55:33,523 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-19 09:55:33,531 INFO L225 Difference]: With dead ends: 2268 [2018-09-19 09:55:33,531 INFO L226 Difference]: Without dead ends: 1364 [2018-09-19 09:55:33,534 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 187 GetRequests, 167 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 09:55:33,536 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1364 states. [2018-09-19 09:55:33,583 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1364 to 1352. [2018-09-19 09:55:33,583 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1352 states. [2018-09-19 09:55:33,588 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1352 states to 1352 states and 1615 transitions. [2018-09-19 09:55:33,589 INFO L78 Accepts]: Start accepts. Automaton has 1352 states and 1615 transitions. Word has length 178 [2018-09-19 09:55:33,589 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-19 09:55:33,589 INFO L480 AbstractCegarLoop]: Abstraction has 1352 states and 1615 transitions. [2018-09-19 09:55:33,589 INFO L481 AbstractCegarLoop]: Interpolant automaton has 12 states. [2018-09-19 09:55:33,590 INFO L276 IsEmpty]: Start isEmpty. Operand 1352 states and 1615 transitions. [2018-09-19 09:55:33,593 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 191 [2018-09-19 09:55:33,593 INFO L368 BasicCegarLoop]: Found error trace [2018-09-19 09:55:33,593 INFO L376 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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 09:55:33,593 INFO L423 AbstractCegarLoop]: === Iteration 6 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-19 09:55:33,594 INFO L82 PathProgramCache]: Analyzing trace with hash -975903850, now seen corresponding path program 1 times [2018-09-19 09:55:33,594 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-19 09:55:33,594 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 191 with the following transitions: [2018-09-19 09:55:33,595 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [9], [17], [25], [33], [41], [49], [57], [65], [73], [81], [89], [97], [105], [113], [121], [129], [137], [145], [153], [161], [169], [177], [185], [193], [201], [209], [217], [225], [233], [241], [245], [247], [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 09:55:33,598 INFO L148 AbstractInterpreter]: Using domain OctagonDomain [2018-09-19 09:55:33,598 INFO L101 FixpointEngine]: Starting fixpoint engine with domain OctagonDomain (maxUnwinding=3, maxParallelStates=1) [2018-09-19 09:55:35,057 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-09-19 09:55:40,455 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-19 09:55:40,456 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 09:55:40,465 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-19 09:55:41,406 INFO L232 lantSequenceWeakener]: Weakened 188 states. On average, predicates are now at 73.4% of their original sizes. [2018-09-19 09:55:41,407 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-19 09:55:42,043 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-19 09:55:42,044 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-19 09:55:42,044 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2018-09-19 09:55:42,044 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-19 09:55:42,045 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2018-09-19 09:55:42,045 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2018-09-19 09:55:42,045 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2018-09-19 09:55:42,046 INFO L87 Difference]: Start difference. First operand 1352 states and 1615 transitions. Second operand 10 states. [2018-09-19 09:55:49,629 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-19 09:55:49,630 INFO L93 Difference]: Finished difference Result 2719 states and 3388 transitions. [2018-09-19 09:55:49,633 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2018-09-19 09:55:49,633 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 190 [2018-09-19 09:55:49,634 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-19 09:55:49,646 INFO L225 Difference]: With dead ends: 2719 [2018-09-19 09:55:49,647 INFO L226 Difference]: Without dead ends: 1521 [2018-09-19 09:55:49,654 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 197 GetRequests, 181 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 41 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=74, Invalid=232, Unknown=0, NotChecked=0, Total=306 [2018-09-19 09:55:49,656 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1521 states. [2018-09-19 09:55:49,727 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1521 to 1503. [2018-09-19 09:55:49,728 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1503 states. [2018-09-19 09:55:49,734 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1503 states to 1503 states and 1792 transitions. [2018-09-19 09:55:49,734 INFO L78 Accepts]: Start accepts. Automaton has 1503 states and 1792 transitions. Word has length 190 [2018-09-19 09:55:49,735 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-19 09:55:49,735 INFO L480 AbstractCegarLoop]: Abstraction has 1503 states and 1792 transitions. [2018-09-19 09:55:49,736 INFO L481 AbstractCegarLoop]: Interpolant automaton has 10 states. [2018-09-19 09:55:49,736 INFO L276 IsEmpty]: Start isEmpty. Operand 1503 states and 1792 transitions. [2018-09-19 09:55:49,739 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 193 [2018-09-19 09:55:49,739 INFO L368 BasicCegarLoop]: Found error trace [2018-09-19 09:55:49,740 INFO L376 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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 09:55:49,740 INFO L423 AbstractCegarLoop]: === Iteration 7 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-19 09:55:49,740 INFO L82 PathProgramCache]: Analyzing trace with hash -905575814, now seen corresponding path program 1 times [2018-09-19 09:55:49,741 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-19 09:55:49,741 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 193 with the following transitions: [2018-09-19 09:55:49,741 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [9], [17], [25], [33], [41], [49], [57], [65], [73], [81], [89], [97], [105], [113], [121], [129], [137], [145], [153], [161], [169], [177], [185], [193], [201], [209], [217], [225], [233], [241], [245], [247], [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 09:55:49,744 INFO L148 AbstractInterpreter]: Using domain OctagonDomain [2018-09-19 09:55:49,744 INFO L101 FixpointEngine]: Starting fixpoint engine with domain OctagonDomain (maxUnwinding=3, maxParallelStates=1) [2018-09-19 09:55:51,075 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-09-19 09:55:56,925 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-19 09:55:56,926 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 09:55:56,929 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-19 09:55:57,805 INFO L232 lantSequenceWeakener]: Weakened 190 states. On average, predicates are now at 73.39% of their original sizes. [2018-09-19 09:55:57,806 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-19 09:55:58,074 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-19 09:55:58,074 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-19 09:55:58,074 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2018-09-19 09:55:58,074 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-19 09:55:58,075 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2018-09-19 09:55:58,075 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2018-09-19 09:55:58,075 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2018-09-19 09:55:58,075 INFO L87 Difference]: Start difference. First operand 1503 states and 1792 transitions. Second operand 10 states. [2018-09-19 09:56:02,611 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-19 09:56:02,611 INFO L93 Difference]: Finished difference Result 3020 states and 3751 transitions. [2018-09-19 09:56:02,620 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2018-09-19 09:56:02,621 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 192 [2018-09-19 09:56:02,621 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-19 09:56:02,631 INFO L225 Difference]: With dead ends: 3020 [2018-09-19 09:56:02,631 INFO L226 Difference]: Without dead ends: 1671 [2018-09-19 09:56:02,636 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 199 GetRequests, 183 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 09:56:02,638 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1671 states. [2018-09-19 09:56:02,701 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1671 to 1654. [2018-09-19 09:56:02,702 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1654 states. [2018-09-19 09:56:02,709 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1654 states to 1654 states and 1988 transitions. [2018-09-19 09:56:02,710 INFO L78 Accepts]: Start accepts. Automaton has 1654 states and 1988 transitions. Word has length 192 [2018-09-19 09:56:02,710 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-19 09:56:02,711 INFO L480 AbstractCegarLoop]: Abstraction has 1654 states and 1988 transitions. [2018-09-19 09:56:02,711 INFO L481 AbstractCegarLoop]: Interpolant automaton has 10 states. [2018-09-19 09:56:02,711 INFO L276 IsEmpty]: Start isEmpty. Operand 1654 states and 1988 transitions. [2018-09-19 09:56:02,716 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 197 [2018-09-19 09:56:02,716 INFO L368 BasicCegarLoop]: Found error trace [2018-09-19 09:56:02,717 INFO L376 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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 09:56:02,717 INFO L423 AbstractCegarLoop]: === Iteration 8 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-19 09:56:02,717 INFO L82 PathProgramCache]: Analyzing trace with hash 1060030530, now seen corresponding path program 1 times [2018-09-19 09:56:02,718 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-19 09:56:02,718 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 197 with the following transitions: [2018-09-19 09:56:02,718 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [9], [17], [25], [33], [41], [49], [57], [65], [73], [81], [89], [97], [105], [113], [121], [129], [137], [145], [153], [161], [169], [177], [185], [193], [201], [209], [217], [225], [233], [241], [245], [247], [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 09:56:02,722 INFO L148 AbstractInterpreter]: Using domain OctagonDomain [2018-09-19 09:56:02,723 INFO L101 FixpointEngine]: Starting fixpoint engine with domain OctagonDomain (maxUnwinding=3, maxParallelStates=1) [2018-09-19 09:56:04,273 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-09-19 09:56:10,310 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-19 09:56:10,310 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 09:56:10,321 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-19 09:56:11,147 INFO L232 lantSequenceWeakener]: Weakened 194 states. On average, predicates are now at 73.38% of their original sizes. [2018-09-19 09:56:11,148 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-19 09:56:11,420 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-19 09:56:11,421 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-19 09:56:11,421 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2018-09-19 09:56:11,421 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-19 09:56:11,421 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2018-09-19 09:56:11,422 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2018-09-19 09:56:11,422 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2018-09-19 09:56:11,422 INFO L87 Difference]: Start difference. First operand 1654 states and 1988 transitions. Second operand 10 states. [2018-09-19 09:56:16,421 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-19 09:56:16,421 INFO L93 Difference]: Finished difference Result 3477 states and 4328 transitions. [2018-09-19 09:56:16,422 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2018-09-19 09:56:16,422 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 196 [2018-09-19 09:56:16,422 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-19 09:56:16,432 INFO L225 Difference]: With dead ends: 3477 [2018-09-19 09:56:16,432 INFO L226 Difference]: Without dead ends: 1977 [2018-09-19 09:56:16,436 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 203 GetRequests, 187 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 09:56:16,438 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1977 states. [2018-09-19 09:56:16,495 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1977 to 1954. [2018-09-19 09:56:16,496 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1954 states. [2018-09-19 09:56:16,502 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1954 states to 1954 states and 2362 transitions. [2018-09-19 09:56:16,502 INFO L78 Accepts]: Start accepts. Automaton has 1954 states and 2362 transitions. Word has length 196 [2018-09-19 09:56:16,502 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-19 09:56:16,503 INFO L480 AbstractCegarLoop]: Abstraction has 1954 states and 2362 transitions. [2018-09-19 09:56:16,503 INFO L481 AbstractCegarLoop]: Interpolant automaton has 10 states. [2018-09-19 09:56:16,503 INFO L276 IsEmpty]: Start isEmpty. Operand 1954 states and 2362 transitions. [2018-09-19 09:56:16,506 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 203 [2018-09-19 09:56:16,506 INFO L368 BasicCegarLoop]: Found error trace [2018-09-19 09:56:16,507 INFO L376 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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 09:56:16,507 INFO L423 AbstractCegarLoop]: === Iteration 9 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-19 09:56:16,507 INFO L82 PathProgramCache]: Analyzing trace with hash -1336785682, now seen corresponding path program 1 times [2018-09-19 09:56:16,507 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-19 09:56:16,508 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 203 with the following transitions: [2018-09-19 09:56:16,508 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [9], [17], [25], [33], [41], [49], [57], [65], [73], [81], [89], [97], [105], [113], [121], [129], [137], [145], [153], [161], [169], [177], [185], [193], [201], [209], [217], [225], [233], [241], [245], [247], [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 09:56:16,510 INFO L148 AbstractInterpreter]: Using domain OctagonDomain [2018-09-19 09:56:16,510 INFO L101 FixpointEngine]: Starting fixpoint engine with domain OctagonDomain (maxUnwinding=3, maxParallelStates=1) [2018-09-19 09:56:17,884 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-09-19 09:56:27,929 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-19 09:56:27,930 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 09:56:27,937 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-19 09:56:28,807 INFO L232 lantSequenceWeakener]: Weakened 200 states. On average, predicates are now at 73.36% of their original sizes. [2018-09-19 09:56:28,807 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-19 09:56:29,105 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-19 09:56:29,105 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-19 09:56:29,105 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2018-09-19 09:56:29,105 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-19 09:56:29,106 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2018-09-19 09:56:29,106 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2018-09-19 09:56:29,106 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2018-09-19 09:56:29,107 INFO L87 Difference]: Start difference. First operand 1954 states and 2362 transitions. Second operand 10 states. [2018-09-19 09:56:34,278 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-19 09:56:34,279 INFO L93 Difference]: Finished difference Result 3932 states and 4909 transitions. [2018-09-19 09:56:34,280 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2018-09-19 09:56:34,280 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 202 [2018-09-19 09:56:34,281 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-19 09:56:34,289 INFO L225 Difference]: With dead ends: 3932 [2018-09-19 09:56:34,289 INFO L226 Difference]: Without dead ends: 2132 [2018-09-19 09:56:34,293 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 209 GetRequests, 193 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 09:56:34,295 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2132 states. [2018-09-19 09:56:34,357 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2132 to 2109. [2018-09-19 09:56:34,357 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2109 states. [2018-09-19 09:56:34,364 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2109 states to 2109 states and 2577 transitions. [2018-09-19 09:56:34,364 INFO L78 Accepts]: Start accepts. Automaton has 2109 states and 2577 transitions. Word has length 202 [2018-09-19 09:56:34,365 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-19 09:56:34,365 INFO L480 AbstractCegarLoop]: Abstraction has 2109 states and 2577 transitions. [2018-09-19 09:56:34,365 INFO L481 AbstractCegarLoop]: Interpolant automaton has 10 states. [2018-09-19 09:56:34,365 INFO L276 IsEmpty]: Start isEmpty. Operand 2109 states and 2577 transitions. [2018-09-19 09:56:34,369 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 212 [2018-09-19 09:56:34,369 INFO L368 BasicCegarLoop]: Found error trace [2018-09-19 09:56:34,370 INFO L376 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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 09:56:34,370 INFO L423 AbstractCegarLoop]: === Iteration 10 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-19 09:56:34,370 INFO L82 PathProgramCache]: Analyzing trace with hash 839796629, now seen corresponding path program 1 times [2018-09-19 09:56:34,370 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-19 09:56:34,371 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 212 with the following transitions: [2018-09-19 09:56:34,371 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [9], [17], [25], [33], [41], [49], [57], [65], [73], [81], [89], [97], [105], [113], [121], [129], [137], [145], [153], [161], [169], [177], [185], [193], [201], [209], [217], [225], [233], [241], [245], [247], [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 09:56:34,373 INFO L148 AbstractInterpreter]: Using domain OctagonDomain [2018-09-19 09:56:34,374 INFO L101 FixpointEngine]: Starting fixpoint engine with domain OctagonDomain (maxUnwinding=3, maxParallelStates=1) [2018-09-19 09:56:35,684 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-09-19 09:56:46,181 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-19 09:56:46,181 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 09:56:46,186 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-19 09:56:47,212 INFO L232 lantSequenceWeakener]: Weakened 209 states. On average, predicates are now at 73.33% of their original sizes. [2018-09-19 09:56:47,212 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-19 09:56:47,547 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-19 09:56:47,548 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-19 09:56:47,548 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2018-09-19 09:56:47,548 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-19 09:56:47,548 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2018-09-19 09:56:47,549 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2018-09-19 09:56:47,549 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=81, Unknown=0, NotChecked=0, Total=110 [2018-09-19 09:56:47,549 INFO L87 Difference]: Start difference. First operand 2109 states and 2577 transitions. Second operand 11 states. [2018-09-19 09:56:52,753 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-19 09:56:52,753 INFO L93 Difference]: Finished difference Result 4320 states and 5463 transitions. [2018-09-19 09:56:52,759 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2018-09-19 09:56:52,760 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 211 [2018-09-19 09:56:52,760 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-19 09:56:52,768 INFO L225 Difference]: With dead ends: 4320 [2018-09-19 09:56:52,769 INFO L226 Difference]: Without dead ends: 2365 [2018-09-19 09:56:52,773 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 219 GetRequests, 201 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 09:56:52,775 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2365 states. [2018-09-19 09:56:52,845 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2365 to 2262. [2018-09-19 09:56:52,846 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2262 states. [2018-09-19 09:56:52,852 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2262 states to 2262 states and 2792 transitions. [2018-09-19 09:56:52,852 INFO L78 Accepts]: Start accepts. Automaton has 2262 states and 2792 transitions. Word has length 211 [2018-09-19 09:56:52,853 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-19 09:56:52,853 INFO L480 AbstractCegarLoop]: Abstraction has 2262 states and 2792 transitions. [2018-09-19 09:56:52,853 INFO L481 AbstractCegarLoop]: Interpolant automaton has 11 states. [2018-09-19 09:56:52,853 INFO L276 IsEmpty]: Start isEmpty. Operand 2262 states and 2792 transitions. [2018-09-19 09:56:52,857 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 218 [2018-09-19 09:56:52,857 INFO L368 BasicCegarLoop]: Found error trace [2018-09-19 09:56:52,857 INFO L376 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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 09:56:52,858 INFO L423 AbstractCegarLoop]: === Iteration 11 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-19 09:56:52,858 INFO L82 PathProgramCache]: Analyzing trace with hash -273698687, now seen corresponding path program 1 times [2018-09-19 09:56:52,858 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-19 09:56:52,858 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 218 with the following transitions: [2018-09-19 09:56:52,859 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [9], [17], [25], [33], [41], [49], [57], [65], [73], [81], [89], [97], [105], [113], [121], [129], [137], [145], [153], [161], [169], [177], [185], [193], [201], [209], [217], [225], [233], [241], [245], [247], [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 09:56:52,861 INFO L148 AbstractInterpreter]: Using domain OctagonDomain [2018-09-19 09:56:52,861 INFO L101 FixpointEngine]: Starting fixpoint engine with domain OctagonDomain (maxUnwinding=3, maxParallelStates=1) [2018-09-19 09:56:54,196 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-09-19 09:57:02,515 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-19 09:57:02,515 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 09:57:02,521 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-19 09:57:03,514 INFO L232 lantSequenceWeakener]: Weakened 215 states. On average, predicates are now at 73.31% of their original sizes. [2018-09-19 09:57:03,514 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-19 09:57:03,886 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-19 09:57:03,887 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-19 09:57:03,887 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2018-09-19 09:57:03,887 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-19 09:57:03,888 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2018-09-19 09:57:03,888 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2018-09-19 09:57:03,888 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=81, Unknown=0, NotChecked=0, Total=110 [2018-09-19 09:57:03,888 INFO L87 Difference]: Start difference. First operand 2262 states and 2792 transitions. Second operand 11 states. [2018-09-19 09:57:11,857 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-19 09:57:11,857 INFO L93 Difference]: Finished difference Result 4808 states and 6139 transitions. [2018-09-19 09:57:11,858 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2018-09-19 09:57:11,858 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 217 [2018-09-19 09:57:11,858 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-19 09:57:11,867 INFO L225 Difference]: With dead ends: 4808 [2018-09-19 09:57:11,867 INFO L226 Difference]: Without dead ends: 2700 [2018-09-19 09:57:11,872 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 225 GetRequests, 207 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 09:57:11,874 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2700 states. [2018-09-19 09:57:11,953 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2700 to 2670. [2018-09-19 09:57:11,953 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2670 states. [2018-09-19 09:57:11,958 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2670 states to 2670 states and 3328 transitions. [2018-09-19 09:57:11,958 INFO L78 Accepts]: Start accepts. Automaton has 2670 states and 3328 transitions. Word has length 217 [2018-09-19 09:57:11,959 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-19 09:57:11,959 INFO L480 AbstractCegarLoop]: Abstraction has 2670 states and 3328 transitions. [2018-09-19 09:57:11,959 INFO L481 AbstractCegarLoop]: Interpolant automaton has 11 states. [2018-09-19 09:57:11,959 INFO L276 IsEmpty]: Start isEmpty. Operand 2670 states and 3328 transitions. [2018-09-19 09:57:11,964 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 225 [2018-09-19 09:57:11,964 INFO L368 BasicCegarLoop]: Found error trace [2018-09-19 09:57:11,964 INFO L376 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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 09:57:11,965 INFO L423 AbstractCegarLoop]: === Iteration 12 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-19 09:57:11,965 INFO L82 PathProgramCache]: Analyzing trace with hash -49631046, now seen corresponding path program 1 times [2018-09-19 09:57:11,965 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-19 09:57:11,965 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 225 with the following transitions: [2018-09-19 09:57:11,966 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [9], [17], [25], [33], [41], [49], [57], [65], [73], [81], [89], [97], [105], [113], [121], [129], [137], [145], [153], [161], [169], [177], [185], [193], [201], [209], [217], [225], [233], [241], [245], [247], [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 09:57:11,968 INFO L148 AbstractInterpreter]: Using domain OctagonDomain [2018-09-19 09:57:11,969 INFO L101 FixpointEngine]: Starting fixpoint engine with domain OctagonDomain (maxUnwinding=3, maxParallelStates=1) [2018-09-19 09:57:13,486 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-09-19 09:57:23,128 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-19 09:57:23,128 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 09:57:23,139 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-19 09:57:24,088 INFO L232 lantSequenceWeakener]: Weakened 222 states. On average, predicates are now at 73.3% of their original sizes. [2018-09-19 09:57:24,088 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-19 09:57:24,461 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-19 09:57:24,461 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-19 09:57:24,462 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2018-09-19 09:57:24,462 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-19 09:57:24,462 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2018-09-19 09:57:24,462 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2018-09-19 09:57:24,463 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=81, Unknown=0, NotChecked=0, Total=110 [2018-09-19 09:57:24,463 INFO L87 Difference]: Start difference. First operand 2670 states and 3328 transitions. Second operand 11 states. [2018-09-19 09:57:30,274 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-19 09:57:30,274 INFO L93 Difference]: Finished difference Result 5752 states and 7377 transitions. [2018-09-19 09:57:30,280 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2018-09-19 09:57:30,280 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 224 [2018-09-19 09:57:30,280 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-19 09:57:30,294 INFO L225 Difference]: With dead ends: 5752 [2018-09-19 09:57:30,294 INFO L226 Difference]: Without dead ends: 3236 [2018-09-19 09:57:30,300 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 232 GetRequests, 214 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 09:57:30,304 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3236 states. [2018-09-19 09:57:30,406 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3236 to 3129. [2018-09-19 09:57:30,406 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3129 states. [2018-09-19 09:57:30,413 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3129 states to 3129 states and 3930 transitions. [2018-09-19 09:57:30,414 INFO L78 Accepts]: Start accepts. Automaton has 3129 states and 3930 transitions. Word has length 224 [2018-09-19 09:57:30,414 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-19 09:57:30,414 INFO L480 AbstractCegarLoop]: Abstraction has 3129 states and 3930 transitions. [2018-09-19 09:57:30,415 INFO L481 AbstractCegarLoop]: Interpolant automaton has 11 states. [2018-09-19 09:57:30,415 INFO L276 IsEmpty]: Start isEmpty. Operand 3129 states and 3930 transitions. [2018-09-19 09:57:30,420 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 228 [2018-09-19 09:57:30,421 INFO L368 BasicCegarLoop]: Found error trace [2018-09-19 09:57:30,421 INFO L376 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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 09:57:30,421 INFO L423 AbstractCegarLoop]: === Iteration 13 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-19 09:57:30,422 INFO L82 PathProgramCache]: Analyzing trace with hash 652203189, now seen corresponding path program 1 times [2018-09-19 09:57:30,422 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-19 09:57:30,422 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 228 with the following transitions: [2018-09-19 09:57:30,426 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [9], [17], [25], [33], [41], [49], [57], [65], [73], [81], [89], [97], [105], [113], [121], [129], [137], [145], [153], [161], [169], [177], [185], [193], [201], [209], [217], [225], [233], [241], [245], [247], [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 09:57:30,429 INFO L148 AbstractInterpreter]: Using domain OctagonDomain [2018-09-19 09:57:30,429 INFO L101 FixpointEngine]: Starting fixpoint engine with domain OctagonDomain (maxUnwinding=3, maxParallelStates=1) [2018-09-19 09:57:32,007 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-09-19 09:57:41,843 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-19 09:57:41,843 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 09:57:41,851 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-19 09:57:42,852 INFO L232 lantSequenceWeakener]: Weakened 225 states. On average, predicates are now at 73.29% of their original sizes. [2018-09-19 09:57:42,852 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-19 09:57:43,318 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-19 09:57:43,318 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-19 09:57:43,318 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2018-09-19 09:57:43,319 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-19 09:57:43,319 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2018-09-19 09:57:43,319 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2018-09-19 09:57:43,320 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=116, Unknown=0, NotChecked=0, Total=156 [2018-09-19 09:57:43,320 INFO L87 Difference]: Start difference. First operand 3129 states and 3930 transitions. Second operand 13 states. [2018-09-19 09:57:51,847 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-19 09:57:51,847 INFO L93 Difference]: Finished difference Result 6701 states and 8709 transitions. [2018-09-19 09:57:51,848 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2018-09-19 09:57:51,848 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 227 [2018-09-19 09:57:51,848 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-19 09:57:51,862 INFO L225 Difference]: With dead ends: 6701 [2018-09-19 09:57:51,863 INFO L226 Difference]: Without dead ends: 3726 [2018-09-19 09:57:51,869 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 239 GetRequests, 215 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 09:57:51,872 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3726 states. [2018-09-19 09:57:51,983 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3726 to 3529. [2018-09-19 09:57:51,983 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3529 states. [2018-09-19 09:57:51,990 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3529 states to 3529 states and 4443 transitions. [2018-09-19 09:57:51,991 INFO L78 Accepts]: Start accepts. Automaton has 3529 states and 4443 transitions. Word has length 227 [2018-09-19 09:57:51,991 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-19 09:57:51,991 INFO L480 AbstractCegarLoop]: Abstraction has 3529 states and 4443 transitions. [2018-09-19 09:57:51,991 INFO L481 AbstractCegarLoop]: Interpolant automaton has 13 states. [2018-09-19 09:57:51,992 INFO L276 IsEmpty]: Start isEmpty. Operand 3529 states and 4443 transitions. [2018-09-19 09:57:51,999 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 233 [2018-09-19 09:57:52,000 INFO L368 BasicCegarLoop]: Found error trace [2018-09-19 09:57:52,000 INFO L376 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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 09:57:52,000 INFO L423 AbstractCegarLoop]: === Iteration 14 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-19 09:57:52,001 INFO L82 PathProgramCache]: Analyzing trace with hash -1611377340, now seen corresponding path program 1 times [2018-09-19 09:57:52,001 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-19 09:57:52,001 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 233 with the following transitions: [2018-09-19 09:57:52,001 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [9], [17], [25], [33], [41], [49], [57], [65], [73], [81], [89], [97], [105], [113], [121], [129], [137], [145], [153], [161], [169], [177], [185], [193], [201], [209], [217], [225], [233], [241], [245], [247], [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 09:57:52,006 INFO L148 AbstractInterpreter]: Using domain OctagonDomain [2018-09-19 09:57:52,006 INFO L101 FixpointEngine]: Starting fixpoint engine with domain OctagonDomain (maxUnwinding=3, maxParallelStates=1) [2018-09-19 09:57:55,162 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-09-19 09:58:07,358 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-19 09:58:07,358 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 09:58:07,363 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-19 09:58:08,376 INFO L232 lantSequenceWeakener]: Weakened 230 states. On average, predicates are now at 73.28% of their original sizes. [2018-09-19 09:58:08,376 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-19 09:58:08,652 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-19 09:58:08,653 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-19 09:58:08,653 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2018-09-19 09:58:08,653 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-19 09:58:08,653 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2018-09-19 09:58:08,654 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2018-09-19 09:58:08,654 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2018-09-19 09:58:08,654 INFO L87 Difference]: Start difference. First operand 3529 states and 4443 transitions. Second operand 10 states. [2018-09-19 09:58:16,447 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-19 09:58:16,447 INFO L93 Difference]: Finished difference Result 7079 states and 9092 transitions. [2018-09-19 09:58:16,448 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2018-09-19 09:58:16,448 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 232 [2018-09-19 09:58:16,448 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-19 09:58:16,460 INFO L225 Difference]: With dead ends: 7079 [2018-09-19 09:58:16,460 INFO L226 Difference]: Without dead ends: 3704 [2018-09-19 09:58:16,469 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 239 GetRequests, 223 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 09:58:16,471 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3704 states. [2018-09-19 09:58:16,591 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3704 to 3677. [2018-09-19 09:58:16,591 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3677 states. [2018-09-19 09:58:16,598 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3677 states to 3677 states and 4642 transitions. [2018-09-19 09:58:16,599 INFO L78 Accepts]: Start accepts. Automaton has 3677 states and 4642 transitions. Word has length 232 [2018-09-19 09:58:16,600 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-19 09:58:16,600 INFO L480 AbstractCegarLoop]: Abstraction has 3677 states and 4642 transitions. [2018-09-19 09:58:16,600 INFO L481 AbstractCegarLoop]: Interpolant automaton has 10 states. [2018-09-19 09:58:16,600 INFO L276 IsEmpty]: Start isEmpty. Operand 3677 states and 4642 transitions. [2018-09-19 09:58:16,606 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 237 [2018-09-19 09:58:16,607 INFO L368 BasicCegarLoop]: Found error trace [2018-09-19 09:58:16,607 INFO L376 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-19 09:58:16,607 INFO L423 AbstractCegarLoop]: === Iteration 15 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-19 09:58:16,607 INFO L82 PathProgramCache]: Analyzing trace with hash 1535648274, now seen corresponding path program 1 times [2018-09-19 09:58:16,608 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-19 09:58:16,608 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 237 with the following transitions: [2018-09-19 09:58:16,608 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [9], [17], [25], [33], [41], [49], [57], [65], [73], [81], [89], [97], [105], [113], [121], [129], [137], [145], [153], [161], [169], [177], [185], [193], [201], [209], [217], [225], [233], [241], [245], [247], [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], [667], [671], [675], [679], [683], [687], [691], [695], [699], [702], [792], [796], [800], [806], [810], [812], [817], [818], [819], [821], [822] [2018-09-19 09:58:16,612 INFO L148 AbstractInterpreter]: Using domain OctagonDomain [2018-09-19 09:58:16,612 INFO L101 FixpointEngine]: Starting fixpoint engine with domain OctagonDomain (maxUnwinding=3, maxParallelStates=1) [2018-09-19 09:58:18,179 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-09-19 09:58:32,434 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-19 09:58:32,434 INFO L272 AbstractInterpreter]: Visited 130 different actions 634 times. Merged at 7 different actions 28 times. Never widened. Found 5 fixpoints after 2 different actions. Largest state had 24 variables. [2018-09-19 09:58:32,441 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-19 09:58:33,459 INFO L232 lantSequenceWeakener]: Weakened 234 states. On average, predicates are now at 73.27% of their original sizes. [2018-09-19 09:58:33,460 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-19 09:58:33,937 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-19 09:58:33,937 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-19 09:58:33,938 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2018-09-19 09:58:33,938 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-19 09:58:33,938 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2018-09-19 09:58:33,938 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2018-09-19 09:58:33,939 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=116, Unknown=0, NotChecked=0, Total=156 [2018-09-19 09:58:33,939 INFO L87 Difference]: Start difference. First operand 3677 states and 4642 transitions. Second operand 13 states. Received shutdown request... [2018-09-19 09:58:40,741 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2018-09-19 09:58:40,741 WARN L549 AbstractCegarLoop]: Verification canceled [2018-09-19 09:58:40,748 WARN L206 ceAbstractionStarter]: Timeout [2018-09-19 09:58:40,748 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.09 09:58:40 BoogieIcfgContainer [2018-09-19 09:58:40,748 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-09-19 09:58:40,749 INFO L168 Benchmark]: Toolchain (without parser) took 260301.41 ms. Allocated memory was 1.5 GB in the beginning and 4.2 GB in the end (delta: 2.7 GB). Free memory was 1.4 GB in the beginning and 3.1 GB in the end (delta: -1.7 GB). Peak memory consumption was 968.8 MB. Max. memory is 7.1 GB. [2018-09-19 09:58:40,751 INFO L168 Benchmark]: CDTParser took 0.28 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 09:58:40,751 INFO L168 Benchmark]: CACSL2BoogieTranslator took 757.26 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.4 GB in the end (delta: 31.7 MB). Peak memory consumption was 31.7 MB. Max. memory is 7.1 GB. [2018-09-19 09:58:40,752 INFO L168 Benchmark]: Boogie Procedure Inliner took 112.07 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.4 GB in the end (delta: 10.6 MB). Peak memory consumption was 10.6 MB. Max. memory is 7.1 GB. [2018-09-19 09:58:40,753 INFO L168 Benchmark]: Boogie Preprocessor took 229.11 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 748.7 MB). Free memory was 1.4 GB in the beginning and 2.2 GB in the end (delta: -813.8 MB). Peak memory consumption was 29.1 MB. Max. memory is 7.1 GB. [2018-09-19 09:58:40,754 INFO L168 Benchmark]: RCFGBuilder took 3143.64 ms. Allocated memory is still 2.3 GB. Free memory was 2.2 GB in the beginning and 2.1 GB in the end (delta: 111.5 MB). Peak memory consumption was 111.5 MB. Max. memory is 7.1 GB. [2018-09-19 09:58:40,755 INFO L168 Benchmark]: TraceAbstraction took 256052.68 ms. Allocated memory was 2.3 GB in the beginning and 4.2 GB in the end (delta: 1.9 GB). Free memory was 2.1 GB in the beginning and 3.1 GB in the end (delta: -1.0 GB). Peak memory consumption was 880.1 MB. Max. memory is 7.1 GB. [2018-09-19 09:58:40,760 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.28 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 757.26 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.4 GB in the end (delta: 31.7 MB). Peak memory consumption was 31.7 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 112.07 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.4 GB in the end (delta: 10.6 MB). Peak memory consumption was 10.6 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 229.11 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 748.7 MB). Free memory was 1.4 GB in the beginning and 2.2 GB in the end (delta: -813.8 MB). Peak memory consumption was 29.1 MB. Max. memory is 7.1 GB. * RCFGBuilder took 3143.64 ms. Allocated memory is still 2.3 GB. Free memory was 2.2 GB in the beginning and 2.1 GB in the end (delta: 111.5 MB). Peak memory consumption was 111.5 MB. Max. memory is 7.1 GB. * TraceAbstraction took 256052.68 ms. Allocated memory was 2.3 GB in the beginning and 4.2 GB in the end (delta: 1.9 GB). Free memory was 2.1 GB in the beginning and 3.1 GB in the end (delta: -1.0 GB). Peak memory consumption was 880.1 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResultAtElement [Line: 112]: Timeout (TraceAbstraction) Unable to prove that call of __VERIFIER_error() unreachable (line 112). Cancelled while BasicCegarLoop was constructing difference of abstraction (3677states) and FLOYD_HOARE automaton (currently 20 states, 13 states before enhancement), while ReachableStatesComputation was computing reachable states (1400 states constructedinput type IntersectNwa). - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 216 locations, 1 error locations. TIMEOUT Result, 255.9s OverallTime, 15 OverallIterations, 3 TraceHistogramMax, 93.7s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 2754 SDtfs, 12706 SDslu, 3749 SDs, 0 SdLazy, 23832 SolverSat, 2671 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 80.6s Time, PredicateUnifierStatistics: 30 DeclaredPredicates, 2861 GetRequests, 2597 SyntacticMatches, 0 SemanticMatches, 264 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 900 ImplicationChecksByTransitivity, 11.7s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=3677occurred in iteration=14, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 139.7s AbstIntTime, 15 AbstIntIterations, 15 AbstIntStrong, 0.994076577587819 AbsIntWeakeningRatio, 0.12971784536460243 AbsIntAvgWeakeningVarsNumRemoved, 876.2158299743496 AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 1.0s AutomataMinimizationTime, 14 MinimizatonAttempts, 792 StatesRemovedByMinimization, 14 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_label03_true-unreach-call.c_svcomp-Reach-64bit-ToothlessTaipan_OCT-OldIcfg.epf_AutomizerCInline.xml/Csv-Benchmark-0-2018-09-19_09-58-40-774.csv Written .csv to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/csv/Problem10_label03_true-unreach-call.c_svcomp-Reach-64bit-ToothlessTaipan_OCT-OldIcfg.epf_AutomizerCInline.xml/Csv-TraceAbstractionBenchmarks-0-2018-09-19_09-58-40-774.csv Completed graceful shutdown