java -Xmx8000000000 -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data --generate-csv --csv-dir csv -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -s ../../../trunk/examples/settings/ai/taipanbench/svcomp-Reach-64bit-ToothlessTaipan_Default-OldIcfg.epf -i ../../../trunk/examples/svcomp/eca-rers2012/Problem16_label58_true-unreach-call.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-69f5bdd-m [2018-09-19 04:30:45,625 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-09-19 04:30:45,627 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-09-19 04:30:45,640 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-09-19 04:30:45,641 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-09-19 04:30:45,642 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-09-19 04:30:45,643 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-09-19 04:30:45,645 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-09-19 04:30:45,647 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-09-19 04:30:45,648 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-09-19 04:30:45,649 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-09-19 04:30:45,649 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-09-19 04:30:45,650 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-09-19 04:30:45,651 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-09-19 04:30:45,653 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-09-19 04:30:45,653 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-09-19 04:30:45,654 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-09-19 04:30:45,656 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-09-19 04:30:45,658 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-09-19 04:30:45,660 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-09-19 04:30:45,661 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-09-19 04:30:45,662 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-09-19 04:30:45,665 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-09-19 04:30:45,665 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-09-19 04:30:45,666 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-09-19 04:30:45,667 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-09-19 04:30:45,668 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-09-19 04:30:45,669 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-09-19 04:30:45,670 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-09-19 04:30:45,671 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-09-19 04:30:45,671 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-09-19 04:30:45,672 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-09-19 04:30:45,672 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-09-19 04:30:45,672 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-09-19 04:30:45,673 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-09-19 04:30:45,674 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-09-19 04:30:45,675 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/ai/taipanbench/svcomp-Reach-64bit-ToothlessTaipan_Default-OldIcfg.epf [2018-09-19 04:30:45,692 INFO L110 SettingsManager]: Loading preferences was successful [2018-09-19 04:30:45,693 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-09-19 04:30:45,695 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-09-19 04:30:45,695 INFO L133 SettingsManager]: * User list type=DISABLED [2018-09-19 04:30:45,695 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-09-19 04:30:45,695 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-09-19 04:30:45,696 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-09-19 04:30:45,696 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-09-19 04:30:45,696 INFO L133 SettingsManager]: * Log string format=TERM [2018-09-19 04:30:45,696 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-09-19 04:30:45,696 INFO L133 SettingsManager]: * Parallel states before merging=1 [2018-09-19 04:30:45,697 INFO L133 SettingsManager]: * Interval Domain=false [2018-09-19 04:30:45,697 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-09-19 04:30:45,698 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-09-19 04:30:45,698 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-09-19 04:30:45,698 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-09-19 04:30:45,698 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-09-19 04:30:45,699 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-09-19 04:30:45,699 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-09-19 04:30:45,699 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-09-19 04:30:45,700 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-09-19 04:30:45,700 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-09-19 04:30:45,700 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-09-19 04:30:45,700 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-09-19 04:30:45,701 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-09-19 04:30:45,701 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-09-19 04:30:45,701 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-09-19 04:30:45,701 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-09-19 04:30:45,702 INFO L133 SettingsManager]: * Trace refinement strategy=TOOTHLESS_TAIPAN [2018-09-19 04:30:45,702 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-09-19 04:30:45,702 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-09-19 04:30:45,702 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-09-19 04:30:45,702 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-09-19 04:30:45,703 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-09-19 04:30:45,754 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-09-19 04:30:45,766 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-09-19 04:30:45,771 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-09-19 04:30:45,773 INFO L271 PluginConnector]: Initializing CDTParser... [2018-09-19 04:30:45,773 INFO L276 PluginConnector]: CDTParser initialized [2018-09-19 04:30:45,774 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem16_label58_true-unreach-call.c [2018-09-19 04:30:46,117 INFO L221 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ea59a60ec/cbc196697b6b4f958418cfb3471f7ec7/FLAG1d0b1c1b0 [2018-09-19 04:30:46,512 INFO L277 CDTParser]: Found 1 translation units. [2018-09-19 04:30:46,515 INFO L159 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem16_label58_true-unreach-call.c [2018-09-19 04:30:46,539 INFO L325 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ea59a60ec/cbc196697b6b4f958418cfb3471f7ec7/FLAG1d0b1c1b0 [2018-09-19 04:30:46,559 INFO L333 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ea59a60ec/cbc196697b6b4f958418cfb3471f7ec7 [2018-09-19 04:30:46,572 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-09-19 04:30:46,575 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-09-19 04:30:46,577 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-09-19 04:30:46,577 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-09-19 04:30:46,584 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-09-19 04:30:46,585 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.09 04:30:46" (1/1) ... [2018-09-19 04:30:46,589 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2e1ebdbf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 04:30:46, skipping insertion in model container [2018-09-19 04:30:46,589 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.09 04:30:46" (1/1) ... [2018-09-19 04:30:46,602 INFO L160 ieTranslatorObserver]: Starting translation in SV-COMP mode [2018-09-19 04:30:47,533 INFO L170 PostProcessor]: Settings: Checked method=main [2018-09-19 04:30:47,553 INFO L424 MainDispatcher]: Starting main dispatcher in SV-COMP mode [2018-09-19 04:30:47,799 INFO L170 PostProcessor]: Settings: Checked method=main [2018-09-19 04:30:47,908 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 04:30:47 WrapperNode [2018-09-19 04:30:47,909 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-09-19 04:30:47,910 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-09-19 04:30:47,910 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-09-19 04:30:47,910 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-09-19 04:30:47,922 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 04:30:47" (1/1) ... [2018-09-19 04:30:47,988 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 04:30:47" (1/1) ... [2018-09-19 04:30:48,138 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-09-19 04:30:48,138 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-09-19 04:30:48,139 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-09-19 04:30:48,139 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-09-19 04:30:48,514 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 04:30:47" (1/1) ... [2018-09-19 04:30:48,515 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 04:30:47" (1/1) ... [2018-09-19 04:30:48,530 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 04:30:47" (1/1) ... [2018-09-19 04:30:48,531 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 04:30:47" (1/1) ... [2018-09-19 04:30:48,613 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 04:30:47" (1/1) ... [2018-09-19 04:30:48,648 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 04:30:47" (1/1) ... [2018-09-19 04:30:48,682 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 04:30:47" (1/1) ... [2018-09-19 04:30:48,716 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-09-19 04:30:48,717 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-09-19 04:30:48,717 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-09-19 04:30:48,717 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-09-19 04:30:48,718 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 04:30:47" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-09-19 04:30:48,800 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-09-19 04:30:48,801 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-09-19 04:30:48,801 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output2 [2018-09-19 04:30:48,801 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output2 [2018-09-19 04:30:48,801 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2018-09-19 04:30:48,802 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2018-09-19 04:30:48,802 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-09-19 04:30:48,802 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-09-19 04:30:48,802 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-09-19 04:30:48,802 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-09-19 04:30:55,586 INFO L356 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-09-19 04:30:55,587 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.09 04:30:55 BoogieIcfgContainer [2018-09-19 04:30:55,587 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-09-19 04:30:55,588 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-09-19 04:30:55,589 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-09-19 04:30:55,592 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-09-19 04:30:55,592 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.09 04:30:46" (1/3) ... [2018-09-19 04:30:55,593 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2b364ad4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.09 04:30:55, skipping insertion in model container [2018-09-19 04:30:55,594 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 04:30:47" (2/3) ... [2018-09-19 04:30:55,594 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2b364ad4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.09 04:30:55, skipping insertion in model container [2018-09-19 04:30:55,594 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.09 04:30:55" (3/3) ... [2018-09-19 04:30:55,596 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem16_label58_true-unreach-call.c [2018-09-19 04:30:55,607 INFO L137 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-09-19 04:30:55,617 INFO L149 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-09-19 04:30:55,673 INFO L130 ementStrategyFactory]: Using default assertion order modulation [2018-09-19 04:30:55,674 INFO L381 AbstractCegarLoop]: Interprodecural is true [2018-09-19 04:30:55,675 INFO L382 AbstractCegarLoop]: Hoare is true [2018-09-19 04:30:55,675 INFO L383 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-09-19 04:30:55,675 INFO L384 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-09-19 04:30:55,675 INFO L385 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-09-19 04:30:55,675 INFO L386 AbstractCegarLoop]: Difference is false [2018-09-19 04:30:55,675 INFO L387 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-09-19 04:30:55,676 INFO L392 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-09-19 04:30:55,715 INFO L276 IsEmpty]: Start isEmpty. Operand 410 states. [2018-09-19 04:30:55,729 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2018-09-19 04:30:55,730 INFO L368 BasicCegarLoop]: Found error trace [2018-09-19 04:30:55,731 INFO L376 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-19 04:30:55,733 INFO L423 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-19 04:30:55,739 INFO L82 PathProgramCache]: Analyzing trace with hash -484315148, now seen corresponding path program 1 times [2018-09-19 04:30:55,742 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-19 04:30:55,743 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 59 with the following transitions: [2018-09-19 04:30:55,746 INFO L202 CegarAbsIntRunner]: [0], [1], [180], [187], [195], [203], [211], [219], [227], [235], [243], [251], [259], [267], [275], [283], [291], [299], [307], [315], [323], [331], [339], [347], [355], [363], [371], [379], [387], [395], [403], [411], [419], [427], [435], [443], [451], [459], [467], [475], [483], [491], [499], [507], [515], [523], [531], [539], [543], [545], [1556], [1560], [1566], [1570], [1579], [1580], [1581], [1583] [2018-09-19 04:30:55,836 INFO L148 AbstractInterpreter]: Using domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-09-19 04:30:55,836 INFO L101 FixpointEngine]: Starting fixpoint engine with domain CompoundDomain (maxUnwinding=3, maxParallelStates=1) [2018-09-19 04:30:57,264 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-19 04:30:57,266 INFO L272 AbstractInterpreter]: Visited 57 different actions 57 times. Never merged. Never widened. Never found a fixpoint. Largest state had 23 variables. [2018-09-19 04:30:57,282 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-19 04:30:57,963 INFO L232 lantSequenceWeakener]: Weakened 56 states. On average, predicates are now at 80.65% of their original sizes. [2018-09-19 04:30:57,964 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-19 04:30:58,283 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-19 04:30:58,285 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-19 04:30:58,285 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-09-19 04:30:58,286 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-19 04:30:58,292 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-09-19 04:30:58,299 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-09-19 04:30:58,300 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2018-09-19 04:30:58,303 INFO L87 Difference]: Start difference. First operand 410 states. Second operand 6 states. [2018-09-19 04:31:05,335 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-19 04:31:05,335 INFO L93 Difference]: Finished difference Result 1158 states and 2145 transitions. [2018-09-19 04:31:05,338 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-09-19 04:31:05,339 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 58 [2018-09-19 04:31:05,340 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-19 04:31:05,359 INFO L225 Difference]: With dead ends: 1158 [2018-09-19 04:31:05,359 INFO L226 Difference]: Without dead ends: 746 [2018-09-19 04:31:05,369 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 57 GetRequests, 53 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 04:31:05,387 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 746 states. [2018-09-19 04:31:05,466 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 746 to 744. [2018-09-19 04:31:05,468 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 744 states. [2018-09-19 04:31:05,472 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 744 states to 744 states and 1075 transitions. [2018-09-19 04:31:05,474 INFO L78 Accepts]: Start accepts. Automaton has 744 states and 1075 transitions. Word has length 58 [2018-09-19 04:31:05,475 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-19 04:31:05,475 INFO L480 AbstractCegarLoop]: Abstraction has 744 states and 1075 transitions. [2018-09-19 04:31:05,476 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-09-19 04:31:05,476 INFO L276 IsEmpty]: Start isEmpty. Operand 744 states and 1075 transitions. [2018-09-19 04:31:05,483 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 151 [2018-09-19 04:31:05,483 INFO L368 BasicCegarLoop]: Found error trace [2018-09-19 04:31:05,483 INFO L376 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-19 04:31:05,484 INFO L423 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-19 04:31:05,484 INFO L82 PathProgramCache]: Analyzing trace with hash 798236118, now seen corresponding path program 1 times [2018-09-19 04:31:05,484 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-19 04:31:05,485 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 151 with the following transitions: [2018-09-19 04:31:05,485 INFO L202 CegarAbsIntRunner]: [0], [1], [180], [187], [195], [203], [211], [219], [227], [235], [243], [251], [259], [267], [275], [283], [291], [299], [307], [315], [323], [331], [339], [347], [355], [363], [371], [379], [387], [395], [403], [411], [419], [427], [435], [443], [451], [459], [467], [475], [483], [491], [499], [507], [515], [523], [531], [539], [543], [545], [548], [556], [564], [572], [580], [588], [596], [604], [612], [620], [628], [636], [644], [652], [660], [668], [673], [677], [681], [685], [689], [693], [697], [701], [705], [709], [713], [717], [721], [725], [729], [733], [737], [741], [745], [749], [753], [757], [760], [1552], [1556], [1560], [1566], [1570], [1572], [1579], [1580], [1581], [1583], [1584] [2018-09-19 04:31:05,492 INFO L148 AbstractInterpreter]: Using domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-09-19 04:31:05,492 INFO L101 FixpointEngine]: Starting fixpoint engine with domain CompoundDomain (maxUnwinding=3, maxParallelStates=1) [2018-09-19 04:31:07,862 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-09-19 04:31:12,062 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-19 04:31:12,062 INFO L272 AbstractInterpreter]: Visited 99 different actions 284 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 04:31:12,083 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-19 04:31:13,335 INFO L232 lantSequenceWeakener]: Weakened 148 states. On average, predicates are now at 78.61% of their original sizes. [2018-09-19 04:31:13,335 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-19 04:31:13,866 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-19 04:31:13,867 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-19 04:31:13,867 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2018-09-19 04:31:13,867 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-19 04:31:13,869 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2018-09-19 04:31:13,869 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2018-09-19 04:31:13,870 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=81, Unknown=0, NotChecked=0, Total=110 [2018-09-19 04:31:13,870 INFO L87 Difference]: Start difference. First operand 744 states and 1075 transitions. Second operand 11 states. [2018-09-19 04:31:35,383 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-19 04:31:35,383 INFO L93 Difference]: Finished difference Result 1772 states and 3024 transitions. [2018-09-19 04:31:35,384 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2018-09-19 04:31:35,384 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 150 [2018-09-19 04:31:35,385 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-19 04:31:35,392 INFO L225 Difference]: With dead ends: 1772 [2018-09-19 04:31:35,392 INFO L226 Difference]: Without dead ends: 1372 [2018-09-19 04:31:35,396 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 158 GetRequests, 140 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 57 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=87, Invalid=293, Unknown=0, NotChecked=0, Total=380 [2018-09-19 04:31:35,397 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1372 states. [2018-09-19 04:31:35,456 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1372 to 1094. [2018-09-19 04:31:35,456 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1094 states. [2018-09-19 04:31:35,461 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1094 states to 1094 states and 1441 transitions. [2018-09-19 04:31:35,461 INFO L78 Accepts]: Start accepts. Automaton has 1094 states and 1441 transitions. Word has length 150 [2018-09-19 04:31:35,462 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-19 04:31:35,462 INFO L480 AbstractCegarLoop]: Abstraction has 1094 states and 1441 transitions. [2018-09-19 04:31:35,463 INFO L481 AbstractCegarLoop]: Interpolant automaton has 11 states. [2018-09-19 04:31:35,463 INFO L276 IsEmpty]: Start isEmpty. Operand 1094 states and 1441 transitions. [2018-09-19 04:31:35,467 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 187 [2018-09-19 04:31:35,468 INFO L368 BasicCegarLoop]: Found error trace [2018-09-19 04:31:35,468 INFO L376 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-19 04:31:35,469 INFO L423 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-19 04:31:35,469 INFO L82 PathProgramCache]: Analyzing trace with hash 1233265870, now seen corresponding path program 1 times [2018-09-19 04:31:35,469 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-19 04:31:35,469 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 187 with the following transitions: [2018-09-19 04:31:35,470 INFO L202 CegarAbsIntRunner]: [0], [1], [180], [187], [195], [203], [211], [219], [227], [235], [243], [251], [259], [267], [275], [283], [291], [299], [307], [315], [323], [331], [339], [347], [355], [363], [371], [379], [387], [395], [403], [411], [419], [427], [435], [443], [451], [459], [467], [475], [483], [491], [499], [507], [515], [523], [531], [539], [543], [545], [548], [556], [564], [572], [580], [588], [596], [604], [612], [620], [628], [636], [644], [652], [660], [668], [673], [677], [681], [685], [689], [693], [697], [701], [705], [709], [713], [717], [721], [725], [729], [733], [737], [741], [745], [749], [753], [757], [761], [765], [769], [773], [777], [781], [785], [789], [793], [797], [801], [805], [809], [813], [817], [821], [825], [829], [833], [837], [841], [845], [849], [853], [857], [861], [865], [869], [873], [877], [881], [885], [889], [893], [897], [901], [904], [1552], [1556], [1560], [1566], [1570], [1572], [1579], [1580], [1581], [1583], [1584] [2018-09-19 04:31:35,477 INFO L148 AbstractInterpreter]: Using domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-09-19 04:31:35,477 INFO L101 FixpointEngine]: Starting fixpoint engine with domain CompoundDomain (maxUnwinding=3, maxParallelStates=1) [2018-09-19 04:31:38,716 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-09-19 04:31:45,815 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-19 04:31:45,816 INFO L272 AbstractInterpreter]: Visited 135 different actions 392 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 04:31:45,829 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-19 04:31:46,880 INFO L232 lantSequenceWeakener]: Weakened 184 states. On average, predicates are now at 78.35% of their original sizes. [2018-09-19 04:31:46,880 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-19 04:31:47,979 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-19 04:31:47,979 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-19 04:31:47,979 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2018-09-19 04:31:47,980 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-19 04:31:47,980 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2018-09-19 04:31:47,981 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2018-09-19 04:31:47,981 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=81, Unknown=0, NotChecked=0, Total=110 [2018-09-19 04:31:47,981 INFO L87 Difference]: Start difference. First operand 1094 states and 1441 transitions. Second operand 11 states. [2018-09-19 04:32:05,115 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-19 04:32:05,116 INFO L93 Difference]: Finished difference Result 2749 states and 4050 transitions. [2018-09-19 04:32:05,121 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2018-09-19 04:32:05,121 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 186 [2018-09-19 04:32:05,122 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-19 04:32:05,140 INFO L225 Difference]: With dead ends: 2749 [2018-09-19 04:32:05,140 INFO L226 Difference]: Without dead ends: 1999 [2018-09-19 04:32:05,144 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 194 GetRequests, 176 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 56 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=91, Invalid=289, Unknown=0, NotChecked=0, Total=380 [2018-09-19 04:32:05,146 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1999 states. [2018-09-19 04:32:05,210 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1999 to 1450. [2018-09-19 04:32:05,210 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1450 states. [2018-09-19 04:32:05,215 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1450 states to 1450 states and 1815 transitions. [2018-09-19 04:32:05,216 INFO L78 Accepts]: Start accepts. Automaton has 1450 states and 1815 transitions. Word has length 186 [2018-09-19 04:32:05,216 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-19 04:32:05,216 INFO L480 AbstractCegarLoop]: Abstraction has 1450 states and 1815 transitions. [2018-09-19 04:32:05,217 INFO L481 AbstractCegarLoop]: Interpolant automaton has 11 states. [2018-09-19 04:32:05,217 INFO L276 IsEmpty]: Start isEmpty. Operand 1450 states and 1815 transitions. [2018-09-19 04:32:05,235 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 299 [2018-09-19 04:32:05,235 INFO L368 BasicCegarLoop]: Found error trace [2018-09-19 04:32:05,236 INFO L376 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-19 04:32:05,236 INFO L423 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-19 04:32:05,236 INFO L82 PathProgramCache]: Analyzing trace with hash -1050601746, now seen corresponding path program 1 times [2018-09-19 04:32:05,237 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-19 04:32:05,237 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 299 with the following transitions: [2018-09-19 04:32:05,238 INFO L202 CegarAbsIntRunner]: [0], [1], [180], [187], [195], [203], [211], [219], [227], [235], [243], [251], [259], [267], [275], [283], [291], [299], [307], [315], [323], [331], [339], [347], [355], [363], [371], [379], [387], [395], [403], [411], [419], [427], [435], [443], [451], [459], [467], [475], [483], [491], [499], [507], [515], [523], [531], [539], [543], [545], [548], [556], [564], [572], [580], [588], [596], [604], [612], [620], [628], [636], [644], [652], [660], [668], [673], [677], [681], [685], [689], [693], [697], [701], [705], [709], [713], [717], [721], [725], [729], [733], [737], [741], [745], [749], [753], [757], [761], [765], [769], [773], [777], [781], [785], [789], [793], [797], [801], [805], [809], [813], [817], [821], [825], [829], [833], [837], [841], [845], [849], [853], [857], [861], [865], [869], [873], [877], [881], [885], [889], [893], [897], [901], [905], [909], [913], [917], [921], [925], [929], [933], [937], [941], [945], [949], [953], [957], [961], [965], [969], [973], [977], [981], [985], [989], [993], [997], [1001], [1005], [1009], [1013], [1017], [1021], [1025], [1029], [1033], [1037], [1041], [1045], [1049], [1053], [1057], [1061], [1065], [1069], [1073], [1077], [1081], [1085], [1089], [1093], [1097], [1101], [1105], [1109], [1113], [1117], [1121], [1125], [1129], [1133], [1137], [1141], [1145], [1149], [1153], [1157], [1161], [1165], [1169], [1173], [1177], [1181], [1185], [1189], [1193], [1197], [1201], [1205], [1209], [1213], [1217], [1221], [1225], [1229], [1233], [1237], [1241], [1245], [1249], [1253], [1257], [1261], [1265], [1269], [1273], [1277], [1281], [1285], [1289], [1293], [1297], [1301], [1305], [1309], [1313], [1317], [1321], [1325], [1329], [1333], [1337], [1341], [1345], [1349], [1352], [1552], [1556], [1560], [1566], [1570], [1572], [1579], [1580], [1581], [1583], [1584] [2018-09-19 04:32:05,263 INFO L148 AbstractInterpreter]: Using domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-09-19 04:32:05,263 INFO L101 FixpointEngine]: Starting fixpoint engine with domain CompoundDomain (maxUnwinding=3, maxParallelStates=1) [2018-09-19 04:32:16,027 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-19 04:32:16,027 INFO L272 AbstractInterpreter]: Visited 247 different actions 488 times. Merged at 5 different actions 5 times. Never widened. Found 1 fixpoints after 1 different actions. Largest state had 24 variables. [2018-09-19 04:32:16,036 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-19 04:32:17,645 INFO L232 lantSequenceWeakener]: Weakened 296 states. On average, predicates are now at 77.94% of their original sizes. [2018-09-19 04:32:17,645 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-19 04:32:18,067 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-19 04:32:18,067 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-19 04:32:18,067 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2018-09-19 04:32:18,067 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-19 04:32:18,068 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2018-09-19 04:32:18,068 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2018-09-19 04:32:18,068 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=116, Unknown=0, NotChecked=0, Total=156 [2018-09-19 04:32:18,069 INFO L87 Difference]: Start difference. First operand 1450 states and 1815 transitions. Second operand 13 states. [2018-09-19 04:32:33,214 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-19 04:32:33,214 INFO L93 Difference]: Finished difference Result 2897 states and 3954 transitions. [2018-09-19 04:32:33,215 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2018-09-19 04:32:33,215 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 298 [2018-09-19 04:32:33,216 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-19 04:32:33,227 INFO L225 Difference]: With dead ends: 2897 [2018-09-19 04:32:33,228 INFO L226 Difference]: Without dead ends: 1793 [2018-09-19 04:32:33,233 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 308 GetRequests, 286 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 94 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=127, Invalid=425, Unknown=0, NotChecked=0, Total=552 [2018-09-19 04:32:33,235 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1793 states. [2018-09-19 04:32:33,296 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1793 to 1790. [2018-09-19 04:32:33,297 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1790 states. [2018-09-19 04:32:33,303 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1790 states to 1790 states and 2172 transitions. [2018-09-19 04:32:33,303 INFO L78 Accepts]: Start accepts. Automaton has 1790 states and 2172 transitions. Word has length 298 [2018-09-19 04:32:33,304 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-19 04:32:33,304 INFO L480 AbstractCegarLoop]: Abstraction has 1790 states and 2172 transitions. [2018-09-19 04:32:33,305 INFO L481 AbstractCegarLoop]: Interpolant automaton has 13 states. [2018-09-19 04:32:33,305 INFO L276 IsEmpty]: Start isEmpty. Operand 1790 states and 2172 transitions. [2018-09-19 04:32:33,312 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 307 [2018-09-19 04:32:33,312 INFO L368 BasicCegarLoop]: Found error trace [2018-09-19 04:32:33,312 INFO L376 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-19 04:32:33,313 INFO L423 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-19 04:32:33,313 INFO L82 PathProgramCache]: Analyzing trace with hash -600100514, now seen corresponding path program 1 times [2018-09-19 04:32:33,314 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-19 04:32:33,314 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 307 with the following transitions: [2018-09-19 04:32:33,314 INFO L202 CegarAbsIntRunner]: [0], [1], [180], [187], [195], [203], [211], [219], [227], [235], [243], [251], [259], [267], [275], [283], [291], [299], [307], [315], [323], [331], [339], [347], [355], [363], [371], [379], [387], [395], [403], [411], [419], [427], [435], [443], [451], [459], [467], [475], [483], [491], [499], [507], [515], [523], [531], [539], [543], [545], [548], [556], [564], [572], [580], [588], [596], [604], [612], [620], [628], [636], [644], [652], [660], [668], [673], [677], [681], [685], [689], [693], [697], [701], [705], [709], [713], [717], [721], [725], [729], [733], [737], [741], [745], [749], [753], [757], [761], [765], [769], [773], [777], [781], [785], [789], [793], [797], [801], [805], [809], [813], [817], [821], [825], [829], [833], [837], [841], [845], [849], [853], [857], [861], [865], [869], [873], [877], [881], [885], [889], [893], [897], [901], [905], [909], [913], [917], [921], [925], [929], [933], [937], [941], [945], [949], [953], [957], [961], [965], [969], [973], [977], [981], [985], [989], [993], [997], [1001], [1005], [1009], [1013], [1017], [1021], [1025], [1029], [1033], [1037], [1041], [1045], [1049], [1053], [1057], [1061], [1065], [1069], [1073], [1077], [1081], [1085], [1089], [1093], [1097], [1101], [1105], [1109], [1113], [1117], [1121], [1125], [1129], [1133], [1137], [1141], [1145], [1149], [1153], [1157], [1161], [1165], [1169], [1173], [1177], [1181], [1185], [1189], [1193], [1197], [1201], [1205], [1209], [1213], [1217], [1221], [1225], [1229], [1233], [1237], [1241], [1245], [1249], [1253], [1257], [1261], [1265], [1269], [1273], [1277], [1281], [1285], [1289], [1293], [1297], [1301], [1305], [1309], [1313], [1317], [1321], [1325], [1329], [1333], [1337], [1341], [1345], [1349], [1353], [1357], [1361], [1365], [1369], [1373], [1377], [1381], [1384], [1552], [1556], [1560], [1566], [1570], [1572], [1579], [1580], [1581], [1583], [1584] [2018-09-19 04:32:33,323 INFO L148 AbstractInterpreter]: Using domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-09-19 04:32:33,324 INFO L101 FixpointEngine]: Starting fixpoint engine with domain CompoundDomain (maxUnwinding=3, maxParallelStates=1) [2018-09-19 04:32:50,754 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-19 04:32:50,754 INFO L272 AbstractInterpreter]: Visited 255 different actions 752 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 04:32:50,765 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-19 04:32:52,460 INFO L232 lantSequenceWeakener]: Weakened 304 states. On average, predicates are now at 77.92% of their original sizes. [2018-09-19 04:32:52,460 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-19 04:32:52,897 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-19 04:32:52,897 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-19 04:32:52,897 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2018-09-19 04:32:52,897 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-19 04:32:52,898 INFO L459 AbstractCegarLoop]: Interpolant automaton has 14 states [2018-09-19 04:32:52,898 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2018-09-19 04:32:52,898 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=135, Unknown=0, NotChecked=0, Total=182 [2018-09-19 04:32:52,899 INFO L87 Difference]: Start difference. First operand 1790 states and 2172 transitions. Second operand 14 states. [2018-09-19 04:33:04,797 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-19 04:33:04,797 INFO L93 Difference]: Finished difference Result 3242 states and 4318 transitions. [2018-09-19 04:33:04,808 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2018-09-19 04:33:04,809 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 306 [2018-09-19 04:33:04,810 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-19 04:33:04,819 INFO L225 Difference]: With dead ends: 3242 [2018-09-19 04:33:04,819 INFO L226 Difference]: Without dead ends: 2138 [2018-09-19 04:33:04,823 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 318 GetRequests, 293 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 127 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=173, Invalid=529, Unknown=0, NotChecked=0, Total=702 [2018-09-19 04:33:04,826 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2138 states. [2018-09-19 04:33:04,888 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2138 to 2132. [2018-09-19 04:33:04,888 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2132 states. [2018-09-19 04:33:04,894 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2132 states to 2132 states and 2533 transitions. [2018-09-19 04:33:04,895 INFO L78 Accepts]: Start accepts. Automaton has 2132 states and 2533 transitions. Word has length 306 [2018-09-19 04:33:04,896 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-19 04:33:04,896 INFO L480 AbstractCegarLoop]: Abstraction has 2132 states and 2533 transitions. [2018-09-19 04:33:04,896 INFO L481 AbstractCegarLoop]: Interpolant automaton has 14 states. [2018-09-19 04:33:04,896 INFO L276 IsEmpty]: Start isEmpty. Operand 2132 states and 2533 transitions. [2018-09-19 04:33:04,906 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 391 [2018-09-19 04:33:04,906 INFO L368 BasicCegarLoop]: Found error trace [2018-09-19 04:33:04,906 INFO L376 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-19 04:33:04,907 INFO L423 AbstractCegarLoop]: === Iteration 6 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-19 04:33:04,907 INFO L82 PathProgramCache]: Analyzing trace with hash -1486944048, now seen corresponding path program 1 times [2018-09-19 04:33:04,907 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-19 04:33:04,908 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 391 with the following transitions: [2018-09-19 04:33:04,908 INFO L202 CegarAbsIntRunner]: [0], [1], [180], [187], [195], [203], [211], [219], [227], [235], [243], [251], [259], [267], [275], [283], [291], [299], [307], [315], [323], [331], [339], [347], [355], [363], [371], [379], [387], [395], [403], [411], [419], [427], [435], [443], [451], [459], [467], [475], [483], [491], [499], [507], [515], [523], [531], [539], [543], [545], [548], [556], [564], [572], [580], [588], [596], [604], [612], [620], [628], [636], [644], [652], [660], [668], [673], [677], [681], [685], [689], [693], [697], [701], [705], [709], [713], [717], [721], [725], [729], [733], [737], [741], [745], [749], [753], [757], [760], [761], [765], [769], [773], [777], [781], [785], [789], [793], [797], [801], [805], [809], [813], [817], [821], [825], [829], [833], [837], [841], [845], [849], [853], [857], [861], [865], [869], [873], [877], [881], [885], [889], [893], [897], [901], [905], [909], [913], [917], [921], [925], [929], [933], [937], [941], [945], [949], [953], [957], [961], [965], [969], [973], [977], [981], [985], [989], [993], [997], [1001], [1005], [1009], [1013], [1017], [1021], [1025], [1029], [1033], [1037], [1041], [1045], [1049], [1053], [1057], [1061], [1065], [1069], [1073], [1077], [1081], [1085], [1089], [1093], [1097], [1101], [1105], [1109], [1113], [1117], [1121], [1125], [1129], [1133], [1137], [1141], [1145], [1149], [1153], [1157], [1161], [1165], [1169], [1173], [1177], [1181], [1185], [1189], [1193], [1197], [1201], [1205], [1209], [1213], [1217], [1221], [1225], [1229], [1233], [1237], [1241], [1245], [1249], [1253], [1257], [1261], [1265], [1269], [1273], [1277], [1281], [1285], [1289], [1293], [1297], [1301], [1305], [1309], [1313], [1317], [1321], [1325], [1329], [1333], [1337], [1341], [1345], [1349], [1352], [1552], [1556], [1560], [1566], [1570], [1572], [1579], [1580], [1581], [1583], [1584] [2018-09-19 04:33:04,915 INFO L148 AbstractInterpreter]: Using domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-09-19 04:33:04,915 INFO L101 FixpointEngine]: Starting fixpoint engine with domain CompoundDomain (maxUnwinding=3, maxParallelStates=1) [2018-09-19 04:33:06,485 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-09-19 04:33:27,841 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-19 04:33:27,841 INFO L272 AbstractInterpreter]: Visited 248 different actions 983 times. Merged at 7 different actions 24 times. Never widened. Found 5 fixpoints after 2 different actions. Largest state had 24 variables. [2018-09-19 04:33:27,850 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-19 04:33:30,603 INFO L232 lantSequenceWeakener]: Weakened 388 states. On average, predicates are now at 77.81% of their original sizes. [2018-09-19 04:33:30,604 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-19 04:33:30,928 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-19 04:33:30,929 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-19 04:33:30,929 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2018-09-19 04:33:30,929 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-19 04:33:30,930 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2018-09-19 04:33:30,930 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2018-09-19 04:33:30,930 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=81, Unknown=0, NotChecked=0, Total=110 [2018-09-19 04:33:30,930 INFO L87 Difference]: Start difference. First operand 2132 states and 2533 transitions. Second operand 11 states. [2018-09-19 04:33:46,776 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-19 04:33:46,777 INFO L93 Difference]: Finished difference Result 4495 states and 5901 transitions. [2018-09-19 04:33:46,778 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2018-09-19 04:33:46,778 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 390 [2018-09-19 04:33:46,780 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-19 04:33:46,791 INFO L225 Difference]: With dead ends: 4495 [2018-09-19 04:33:46,792 INFO L226 Difference]: Without dead ends: 3049 [2018-09-19 04:33:46,796 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 400 GetRequests, 380 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 75 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=106, Invalid=356, Unknown=0, NotChecked=0, Total=462 [2018-09-19 04:33:46,799 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3049 states. [2018-09-19 04:33:46,862 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3049 to 2489. [2018-09-19 04:33:46,863 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2489 states. [2018-09-19 04:33:46,870 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2489 states to 2489 states and 2917 transitions. [2018-09-19 04:33:46,870 INFO L78 Accepts]: Start accepts. Automaton has 2489 states and 2917 transitions. Word has length 390 [2018-09-19 04:33:46,871 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-19 04:33:46,871 INFO L480 AbstractCegarLoop]: Abstraction has 2489 states and 2917 transitions. [2018-09-19 04:33:46,871 INFO L481 AbstractCegarLoop]: Interpolant automaton has 11 states. [2018-09-19 04:33:46,871 INFO L276 IsEmpty]: Start isEmpty. Operand 2489 states and 2917 transitions. [2018-09-19 04:33:46,880 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 408 [2018-09-19 04:33:46,881 INFO L368 BasicCegarLoop]: Found error trace [2018-09-19 04:33:46,881 INFO L376 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-19 04:33:46,881 INFO L423 AbstractCegarLoop]: === Iteration 7 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-19 04:33:46,882 INFO L82 PathProgramCache]: Analyzing trace with hash -1004954731, now seen corresponding path program 1 times [2018-09-19 04:33:46,882 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-19 04:33:46,882 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 408 with the following transitions: [2018-09-19 04:33:46,883 INFO L202 CegarAbsIntRunner]: [0], [1], [180], [187], [195], [203], [211], [219], [227], [235], [243], [251], [259], [267], [275], [283], [291], [299], [307], [315], [323], [331], [339], [347], [355], [363], [371], [379], [387], [395], [403], [411], [419], [427], [435], [443], [451], [459], [467], [475], [483], [491], [499], [507], [515], [523], [531], [539], [543], [545], [548], [556], [564], [572], [580], [588], [596], [604], [612], [620], [628], [636], [644], [652], [660], [668], [673], [677], [681], [685], [689], [693], [697], [701], [705], [709], [713], [717], [721], [725], [729], [733], [737], [741], [745], [749], [753], [757], [761], [765], [769], [773], [777], [781], [785], [789], [793], [796], [797], [801], [805], [809], [813], [817], [821], [825], [829], [833], [837], [841], [845], [849], [853], [857], [861], [865], [869], [873], [877], [881], [885], [889], [893], [897], [901], [905], [909], [913], [917], [921], [925], [929], [933], [937], [941], [945], [949], [953], [957], [961], [965], [969], [973], [977], [981], [985], [989], [993], [997], [1001], [1005], [1009], [1013], [1017], [1021], [1025], [1029], [1033], [1037], [1041], [1045], [1049], [1053], [1057], [1061], [1065], [1069], [1073], [1077], [1081], [1085], [1089], [1093], [1097], [1101], [1105], [1109], [1113], [1117], [1121], [1125], [1129], [1133], [1137], [1141], [1145], [1149], [1153], [1157], [1161], [1165], [1169], [1173], [1177], [1181], [1185], [1189], [1193], [1197], [1201], [1205], [1209], [1213], [1217], [1221], [1225], [1229], [1233], [1237], [1241], [1245], [1249], [1253], [1257], [1261], [1265], [1269], [1273], [1277], [1281], [1285], [1289], [1293], [1297], [1301], [1305], [1309], [1313], [1317], [1321], [1325], [1329], [1333], [1337], [1341], [1345], [1349], [1353], [1357], [1361], [1365], [1369], [1373], [1377], [1381], [1384], [1552], [1556], [1560], [1566], [1570], [1572], [1579], [1580], [1581], [1583], [1584] [2018-09-19 04:33:46,889 INFO L148 AbstractInterpreter]: Using domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-09-19 04:33:46,889 INFO L101 FixpointEngine]: Starting fixpoint engine with domain CompoundDomain (maxUnwinding=3, maxParallelStates=1) [2018-09-19 04:33:53,998 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-09-19 04:34:09,847 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-19 04:34:09,848 INFO L272 AbstractInterpreter]: Visited 256 different actions 1013 times. Merged at 7 different actions 22 times. Never widened. Found 4 fixpoints after 2 different actions. Largest state had 24 variables. [2018-09-19 04:34:09,855 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-19 04:34:12,313 INFO L232 lantSequenceWeakener]: Weakened 405 states. On average, predicates are now at 77.79% of their original sizes. [2018-09-19 04:34:12,313 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-19 04:34:12,717 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-19 04:34:12,717 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-19 04:34:12,717 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2018-09-19 04:34:12,717 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-19 04:34:12,718 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2018-09-19 04:34:12,718 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2018-09-19 04:34:12,719 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=116, Unknown=0, NotChecked=0, Total=156 [2018-09-19 04:34:12,719 INFO L87 Difference]: Start difference. First operand 2489 states and 2917 transitions. Second operand 13 states. [2018-09-19 04:34:26,750 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-19 04:34:26,751 INFO L93 Difference]: Finished difference Result 4647 states and 5816 transitions. [2018-09-19 04:34:26,753 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2018-09-19 04:34:26,753 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 407 [2018-09-19 04:34:26,754 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-19 04:34:26,763 INFO L225 Difference]: With dead ends: 4647 [2018-09-19 04:34:26,763 INFO L226 Difference]: Without dead ends: 2844 [2018-09-19 04:34:26,768 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 417 GetRequests, 395 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 92 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=131, Invalid=421, Unknown=0, NotChecked=0, Total=552 [2018-09-19 04:34:26,771 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2844 states. [2018-09-19 04:34:26,834 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2844 to 2833. [2018-09-19 04:34:26,834 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2833 states. [2018-09-19 04:34:26,839 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2833 states to 2833 states and 3297 transitions. [2018-09-19 04:34:26,839 INFO L78 Accepts]: Start accepts. Automaton has 2833 states and 3297 transitions. Word has length 407 [2018-09-19 04:34:26,840 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-19 04:34:26,840 INFO L480 AbstractCegarLoop]: Abstraction has 2833 states and 3297 transitions. [2018-09-19 04:34:26,841 INFO L481 AbstractCegarLoop]: Interpolant automaton has 13 states. [2018-09-19 04:34:26,841 INFO L276 IsEmpty]: Start isEmpty. Operand 2833 states and 3297 transitions. [2018-09-19 04:34:26,846 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 427 [2018-09-19 04:34:26,847 INFO L368 BasicCegarLoop]: Found error trace [2018-09-19 04:34:26,847 INFO L376 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-19 04:34:26,847 INFO L423 AbstractCegarLoop]: === Iteration 8 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-19 04:34:26,848 INFO L82 PathProgramCache]: Analyzing trace with hash -1533345848, now seen corresponding path program 1 times [2018-09-19 04:34:26,848 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-19 04:34:26,848 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 427 with the following transitions: [2018-09-19 04:34:26,848 INFO L202 CegarAbsIntRunner]: [0], [1], [180], [187], [195], [203], [211], [219], [227], [235], [243], [251], [259], [267], [275], [283], [291], [299], [307], [315], [323], [331], [339], [347], [355], [363], [371], [379], [387], [395], [403], [411], [419], [427], [435], [443], [451], [459], [467], [475], [483], [491], [499], [507], [515], [523], [531], [539], [543], [545], [548], [556], [564], [572], [580], [588], [596], [604], [612], [620], [628], [636], [644], [652], [660], [668], [673], [677], [681], [685], [689], [693], [697], [701], [705], [709], [713], [717], [721], [725], [729], [733], [737], [741], [745], [749], [753], [757], [761], [765], [769], [773], [777], [781], [785], [789], [793], [797], [801], [805], [809], [813], [817], [821], [825], [829], [833], [837], [841], [845], [849], [853], [857], [861], [865], [869], [873], [877], [881], [885], [889], [893], [897], [901], [904], [905], [909], [913], [917], [921], [925], [929], [933], [937], [941], [945], [949], [953], [957], [961], [965], [969], [973], [977], [981], [985], [989], [993], [997], [1001], [1005], [1009], [1013], [1017], [1021], [1025], [1029], [1033], [1037], [1041], [1045], [1049], [1053], [1057], [1061], [1065], [1069], [1073], [1077], [1081], [1085], [1089], [1093], [1097], [1101], [1105], [1109], [1113], [1117], [1121], [1125], [1129], [1133], [1137], [1141], [1145], [1149], [1153], [1157], [1161], [1165], [1169], [1173], [1177], [1181], [1185], [1189], [1193], [1197], [1201], [1205], [1209], [1213], [1217], [1221], [1225], [1229], [1233], [1237], [1241], [1245], [1249], [1253], [1257], [1261], [1265], [1269], [1273], [1277], [1281], [1285], [1289], [1293], [1297], [1301], [1305], [1309], [1313], [1317], [1321], [1325], [1329], [1333], [1337], [1341], [1345], [1349], [1352], [1552], [1556], [1560], [1566], [1570], [1572], [1579], [1580], [1581], [1583], [1584] [2018-09-19 04:34:26,853 INFO L148 AbstractInterpreter]: Using domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-09-19 04:34:26,854 INFO L101 FixpointEngine]: Starting fixpoint engine with domain CompoundDomain (maxUnwinding=3, maxParallelStates=1) [2018-09-19 04:34:29,447 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-09-19 04:34:49,269 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-19 04:34:49,269 INFO L272 AbstractInterpreter]: Visited 248 different actions 983 times. Merged at 7 different actions 24 times. Never widened. Found 5 fixpoints after 2 different actions. Largest state had 24 variables. [2018-09-19 04:34:49,275 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-19 04:34:51,436 INFO L232 lantSequenceWeakener]: Weakened 424 states. On average, predicates are now at 77.76% of their original sizes. [2018-09-19 04:34:51,438 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-19 04:34:51,783 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-19 04:34:51,783 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-19 04:34:51,783 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2018-09-19 04:34:51,783 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-19 04:34:51,784 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2018-09-19 04:34:51,784 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2018-09-19 04:34:51,784 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=81, Unknown=0, NotChecked=0, Total=110 [2018-09-19 04:34:51,785 INFO L87 Difference]: Start difference. First operand 2833 states and 3297 transitions. Second operand 11 states. Received shutdown request... [2018-09-19 04:34:56,427 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2018-09-19 04:34:56,427 WARN L549 AbstractCegarLoop]: Verification canceled [2018-09-19 04:34:56,432 WARN L206 ceAbstractionStarter]: Timeout [2018-09-19 04:34:56,433 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.09 04:34:56 BoogieIcfgContainer [2018-09-19 04:34:56,433 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-09-19 04:34:56,434 INFO L168 Benchmark]: Toolchain (without parser) took 249861.30 ms. Allocated memory was 1.5 GB in the beginning and 4.1 GB in the end (delta: 2.6 GB). Free memory was 1.4 GB in the beginning and 3.9 GB in the end (delta: -2.5 GB). Peak memory consumption was 159.0 MB. Max. memory is 7.1 GB. [2018-09-19 04:34:56,436 INFO L168 Benchmark]: CDTParser took 0.21 ms. Allocated memory is still 1.5 GB. Free memory is still 1.4 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-09-19 04:34:56,437 INFO L168 Benchmark]: CACSL2BoogieTranslator took 1332.40 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.3 GB in the end (delta: 105.7 MB). Peak memory consumption was 105.7 MB. Max. memory is 7.1 GB. [2018-09-19 04:34:56,437 INFO L168 Benchmark]: Boogie Procedure Inliner took 228.15 ms. Allocated memory is still 1.5 GB. Free memory was 1.3 GB in the beginning and 1.3 GB in the end (delta: 21.1 MB). Peak memory consumption was 21.1 MB. Max. memory is 7.1 GB. [2018-09-19 04:34:56,438 INFO L168 Benchmark]: Boogie Preprocessor took 578.11 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 801.6 MB). Free memory was 1.3 GB in the beginning and 2.2 GB in the end (delta: -948.7 MB). Peak memory consumption was 61.2 MB. Max. memory is 7.1 GB. [2018-09-19 04:34:56,439 INFO L168 Benchmark]: RCFGBuilder took 6870.14 ms. Allocated memory is still 2.3 GB. Free memory was 2.2 GB in the beginning and 2.0 GB in the end (delta: 261.5 MB). Peak memory consumption was 261.5 MB. Max. memory is 7.1 GB. [2018-09-19 04:34:56,440 INFO L168 Benchmark]: TraceAbstraction took 240844.86 ms. Allocated memory was 2.3 GB in the beginning and 4.1 GB in the end (delta: 1.8 GB). Free memory was 2.0 GB in the beginning and 3.9 GB in the end (delta: -1.9 GB). There was no memory consumed. Max. memory is 7.1 GB. [2018-09-19 04:34:56,445 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21 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 1332.40 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.3 GB in the end (delta: 105.7 MB). Peak memory consumption was 105.7 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 228.15 ms. Allocated memory is still 1.5 GB. Free memory was 1.3 GB in the beginning and 1.3 GB in the end (delta: 21.1 MB). Peak memory consumption was 21.1 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 578.11 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 801.6 MB). Free memory was 1.3 GB in the beginning and 2.2 GB in the end (delta: -948.7 MB). Peak memory consumption was 61.2 MB. Max. memory is 7.1 GB. * RCFGBuilder took 6870.14 ms. Allocated memory is still 2.3 GB. Free memory was 2.2 GB in the beginning and 2.0 GB in the end (delta: 261.5 MB). Peak memory consumption was 261.5 MB. Max. memory is 7.1 GB. * TraceAbstraction took 240844.86 ms. Allocated memory was 2.3 GB in the beginning and 4.1 GB in the end (delta: 1.8 GB). Free memory was 2.0 GB in the beginning and 3.9 GB in the end (delta: -1.9 GB). There was no memory consumed. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResultAtElement [Line: 160]: Timeout (TraceAbstraction) Unable to prove that call of __VERIFIER_error() unreachable (line 160). Cancelled while BasicCegarLoop was constructing difference of abstraction (2833states) and FLOYD_HOARE automaton (currently 15 states, 11 states before enhancement), while ReachableStatesComputation was computing reachable states (758 states constructedinput type IntersectNwa). - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 410 locations, 1 error locations. TIMEOUT Result, 240.7s OverallTime, 8 OverallIterations, 3 TraceHistogramMax, 107.4s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 2813 SDtfs, 14527 SDslu, 2818 SDs, 0 SdLazy, 31852 SolverSat, 3336 SolverUnsat, 2 SolverUnknown, 0 SolverNotchecked, 95.9s Time, PredicateUnifierStatistics: 16 DeclaredPredicates, 2286 GetRequests, 2139 SyntacticMatches, 0 SemanticMatches, 147 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 558 ImplicationChecksByTransitivity, 5.8s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=2833occurred in iteration=7, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 115.0s AbstIntTime, 8 AbstIntIterations, 8 AbstIntStrong, 0.9964258540532144 AbsIntWeakeningRatio, 0.07772254857659286 AbsIntAvgWeakeningVarsNumRemoved, 921.5580659737913 AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.5s AutomataMinimizationTime, 7 MinimizatonAttempts, 1409 StatesRemovedByMinimization, 7 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: No data available, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Written .csv to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/csv/Problem16_label58_true-unreach-call.c_svcomp-Reach-64bit-ToothlessTaipan_Default-OldIcfg.epf_AutomizerCInline.xml/Csv-Benchmark-0-2018-09-19_04-34-56-459.csv Written .csv to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/csv/Problem16_label58_true-unreach-call.c_svcomp-Reach-64bit-ToothlessTaipan_Default-OldIcfg.epf_AutomizerCInline.xml/Csv-TraceAbstractionBenchmarks-0-2018-09-19_04-34-56-459.csv Completed graceful shutdown