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/Problem17_label14_true-unreach-call.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-69f5bdd-m [2018-09-19 11:08:02,380 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-09-19 11:08:02,382 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-09-19 11:08:02,395 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-09-19 11:08:02,395 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-09-19 11:08:02,396 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-09-19 11:08:02,398 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-09-19 11:08:02,399 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-09-19 11:08:02,401 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-09-19 11:08:02,402 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-09-19 11:08:02,403 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-09-19 11:08:02,403 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-09-19 11:08:02,404 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-09-19 11:08:02,405 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-09-19 11:08:02,406 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-09-19 11:08:02,407 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-09-19 11:08:02,408 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-09-19 11:08:02,410 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-09-19 11:08:02,411 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-09-19 11:08:02,413 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-09-19 11:08:02,414 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-09-19 11:08:02,415 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-09-19 11:08:02,418 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-09-19 11:08:02,418 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-09-19 11:08:02,419 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-09-19 11:08:02,420 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-09-19 11:08:02,421 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-09-19 11:08:02,422 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-09-19 11:08:02,422 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-09-19 11:08:02,423 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-09-19 11:08:02,424 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-09-19 11:08:02,425 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-09-19 11:08:02,425 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-09-19 11:08:02,425 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-09-19 11:08:02,426 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-09-19 11:08:02,427 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-09-19 11:08:02,427 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 11:08:02,446 INFO L110 SettingsManager]: Loading preferences was successful [2018-09-19 11:08:02,447 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-09-19 11:08:02,448 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-09-19 11:08:02,448 INFO L133 SettingsManager]: * User list type=DISABLED [2018-09-19 11:08:02,448 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-09-19 11:08:02,448 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-09-19 11:08:02,448 INFO L133 SettingsManager]: * Congruence Domain=false [2018-09-19 11:08:02,449 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-09-19 11:08:02,449 INFO L133 SettingsManager]: * Abstract domain=OctagonDomain [2018-09-19 11:08:02,449 INFO L133 SettingsManager]: * Log string format=TERM [2018-09-19 11:08:02,449 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-09-19 11:08:02,449 INFO L133 SettingsManager]: * Parallel states before merging=1 [2018-09-19 11:08:02,450 INFO L133 SettingsManager]: * Interval Domain=false [2018-09-19 11:08:02,450 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-09-19 11:08:02,450 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-09-19 11:08:02,451 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-09-19 11:08:02,451 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-09-19 11:08:02,451 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-09-19 11:08:02,451 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-09-19 11:08:02,451 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-09-19 11:08:02,452 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-09-19 11:08:02,452 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-09-19 11:08:02,452 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-09-19 11:08:02,452 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-09-19 11:08:02,452 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-09-19 11:08:02,453 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-09-19 11:08:02,453 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-09-19 11:08:02,453 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-09-19 11:08:02,453 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-09-19 11:08:02,453 INFO L133 SettingsManager]: * Trace refinement strategy=TOOTHLESS_TAIPAN [2018-09-19 11:08:02,454 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-09-19 11:08:02,454 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-09-19 11:08:02,454 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-09-19 11:08:02,454 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-09-19 11:08:02,454 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-09-19 11:08:02,503 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-09-19 11:08:02,516 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-09-19 11:08:02,520 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-09-19 11:08:02,522 INFO L271 PluginConnector]: Initializing CDTParser... [2018-09-19 11:08:02,523 INFO L276 PluginConnector]: CDTParser initialized [2018-09-19 11:08:02,524 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem17_label14_true-unreach-call.c [2018-09-19 11:08:02,893 INFO L221 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b7a8516b2/973485f42cd84efeabd83925e27c5d5c/FLAG1469eba8f [2018-09-19 11:08:03,370 INFO L277 CDTParser]: Found 1 translation units. [2018-09-19 11:08:03,371 INFO L159 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem17_label14_true-unreach-call.c [2018-09-19 11:08:03,404 INFO L325 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b7a8516b2/973485f42cd84efeabd83925e27c5d5c/FLAG1469eba8f [2018-09-19 11:08:03,423 INFO L333 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b7a8516b2/973485f42cd84efeabd83925e27c5d5c [2018-09-19 11:08:03,437 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-09-19 11:08:03,443 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-09-19 11:08:03,444 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-09-19 11:08:03,444 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-09-19 11:08:03,455 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-09-19 11:08:03,457 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.09 11:08:03" (1/1) ... [2018-09-19 11:08:03,461 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7c6b61f9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 11:08:03, skipping insertion in model container [2018-09-19 11:08:03,461 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.09 11:08:03" (1/1) ... [2018-09-19 11:08:03,475 INFO L160 ieTranslatorObserver]: Starting translation in SV-COMP mode [2018-09-19 11:08:04,455 INFO L170 PostProcessor]: Settings: Checked method=main [2018-09-19 11:08:04,476 INFO L424 MainDispatcher]: Starting main dispatcher in SV-COMP mode [2018-09-19 11:08:04,969 INFO L170 PostProcessor]: Settings: Checked method=main [2018-09-19 11:08:05,235 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 11:08:05 WrapperNode [2018-09-19 11:08:05,235 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-09-19 11:08:05,236 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-09-19 11:08:05,237 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-09-19 11:08:05,237 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-09-19 11:08:05,247 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 11:08:05" (1/1) ... [2018-09-19 11:08:05,356 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 11:08:05" (1/1) ... [2018-09-19 11:08:05,618 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-09-19 11:08:05,619 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-09-19 11:08:05,619 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-09-19 11:08:05,619 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-09-19 11:08:06,367 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 11:08:05" (1/1) ... [2018-09-19 11:08:06,368 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 11:08:05" (1/1) ... [2018-09-19 11:08:06,412 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 11:08:05" (1/1) ... [2018-09-19 11:08:06,413 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 11:08:05" (1/1) ... [2018-09-19 11:08:06,539 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 11:08:05" (1/1) ... [2018-09-19 11:08:06,561 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 11:08:05" (1/1) ... [2018-09-19 11:08:06,623 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 11:08:05" (1/1) ... [2018-09-19 11:08:06,684 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-09-19 11:08:06,685 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-09-19 11:08:06,685 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-09-19 11:08:06,685 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-09-19 11:08:06,687 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 11:08:05" (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 11:08:06,768 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-09-19 11:08:06,769 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-09-19 11:08:06,769 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output2 [2018-09-19 11:08:06,769 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output2 [2018-09-19 11:08:06,769 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2018-09-19 11:08:06,769 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2018-09-19 11:08:06,770 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-09-19 11:08:06,770 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-09-19 11:08:06,770 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-09-19 11:08:06,770 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-09-19 11:08:19,557 INFO L356 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-09-19 11:08:19,558 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.09 11:08:19 BoogieIcfgContainer [2018-09-19 11:08:19,558 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-09-19 11:08:19,559 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-09-19 11:08:19,560 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-09-19 11:08:19,563 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-09-19 11:08:19,563 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.09 11:08:03" (1/3) ... [2018-09-19 11:08:19,564 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@8c3e806 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.09 11:08:19, skipping insertion in model container [2018-09-19 11:08:19,564 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 11:08:05" (2/3) ... [2018-09-19 11:08:19,565 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@8c3e806 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.09 11:08:19, skipping insertion in model container [2018-09-19 11:08:19,565 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.09 11:08:19" (3/3) ... [2018-09-19 11:08:19,567 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem17_label14_true-unreach-call.c [2018-09-19 11:08:19,574 INFO L137 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-09-19 11:08:19,583 INFO L149 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-09-19 11:08:19,638 INFO L130 ementStrategyFactory]: Using default assertion order modulation [2018-09-19 11:08:19,639 INFO L381 AbstractCegarLoop]: Interprodecural is true [2018-09-19 11:08:19,639 INFO L382 AbstractCegarLoop]: Hoare is true [2018-09-19 11:08:19,639 INFO L383 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-09-19 11:08:19,639 INFO L384 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-09-19 11:08:19,640 INFO L385 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-09-19 11:08:19,640 INFO L386 AbstractCegarLoop]: Difference is false [2018-09-19 11:08:19,640 INFO L387 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-09-19 11:08:19,640 INFO L392 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-09-19 11:08:19,676 INFO L276 IsEmpty]: Start isEmpty. Operand 604 states. [2018-09-19 11:08:19,685 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2018-09-19 11:08:19,686 INFO L368 BasicCegarLoop]: Found error trace [2018-09-19 11:08:19,687 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] [2018-09-19 11:08:19,688 INFO L423 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-19 11:08:19,694 INFO L82 PathProgramCache]: Analyzing trace with hash 104391076, now seen corresponding path program 1 times [2018-09-19 11:08:19,696 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-19 11:08:19,697 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 55 with the following transitions: [2018-09-19 11:08:19,700 INFO L202 CegarAbsIntRunner]: [0], [1], [711], [718], [726], [734], [742], [750], [758], [766], [774], [782], [790], [798], [806], [814], [822], [830], [838], [846], [854], [862], [870], [878], [886], [894], [902], [910], [918], [926], [934], [942], [950], [958], [966], [974], [982], [990], [998], [1006], [1014], [1022], [1030], [1038], [1042], [1044], [2283], [2287], [2293], [2297], [2306], [2307], [2308], [2310] [2018-09-19 11:08:19,766 INFO L148 AbstractInterpreter]: Using domain OctagonDomain [2018-09-19 11:08:19,766 INFO L101 FixpointEngine]: Starting fixpoint engine with domain OctagonDomain (maxUnwinding=3, maxParallelStates=1) [2018-09-19 11:08:21,270 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-19 11:08:21,271 INFO L272 AbstractInterpreter]: Visited 53 different actions 53 times. Never merged. Never widened. Never found a fixpoint. Largest state had 25 variables. [2018-09-19 11:08:21,291 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-19 11:08:22,053 INFO L232 lantSequenceWeakener]: Weakened 52 states. On average, predicates are now at 77.81% of their original sizes. [2018-09-19 11:08:22,053 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-19 11:08:22,394 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-19 11:08:22,396 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-19 11:08:22,396 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-09-19 11:08:22,397 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-19 11:08:22,402 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-09-19 11:08:22,409 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-09-19 11:08:22,410 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2018-09-19 11:08:22,414 INFO L87 Difference]: Start difference. First operand 604 states. Second operand 6 states. [2018-09-19 11:08:39,302 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-19 11:08:39,303 INFO L93 Difference]: Finished difference Result 1642 states and 3016 transitions. [2018-09-19 11:08:39,304 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-09-19 11:08:39,306 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 54 [2018-09-19 11:08:39,307 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-19 11:08:39,333 INFO L225 Difference]: With dead ends: 1642 [2018-09-19 11:08:39,333 INFO L226 Difference]: Without dead ends: 1036 [2018-09-19 11:08:39,344 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 53 GetRequests, 49 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 11:08:39,369 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1036 states. [2018-09-19 11:08:39,465 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1036 to 1034. [2018-09-19 11:08:39,467 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1034 states. [2018-09-19 11:08:39,474 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1034 states to 1034 states and 1511 transitions. [2018-09-19 11:08:39,477 INFO L78 Accepts]: Start accepts. Automaton has 1034 states and 1511 transitions. Word has length 54 [2018-09-19 11:08:39,477 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-19 11:08:39,478 INFO L480 AbstractCegarLoop]: Abstraction has 1034 states and 1511 transitions. [2018-09-19 11:08:39,478 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-09-19 11:08:39,478 INFO L276 IsEmpty]: Start isEmpty. Operand 1034 states and 1511 transitions. [2018-09-19 11:08:39,486 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2018-09-19 11:08:39,486 INFO L368 BasicCegarLoop]: Found error trace [2018-09-19 11:08:39,486 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 11:08:39,487 INFO L423 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-19 11:08:39,487 INFO L82 PathProgramCache]: Analyzing trace with hash 2037209594, now seen corresponding path program 1 times [2018-09-19 11:08:39,488 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-19 11:08:39,488 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 130 with the following transitions: [2018-09-19 11:08:39,489 INFO L202 CegarAbsIntRunner]: [0], [1], [711], [718], [726], [734], [742], [750], [758], [766], [774], [782], [790], [798], [806], [814], [822], [830], [838], [846], [854], [862], [870], [878], [886], [894], [902], [910], [918], [926], [934], [942], [950], [958], [966], [974], [982], [990], [998], [1006], [1014], [1022], [1030], [1038], [1042], [1044], [1047], [1055], [1063], [1071], [1079], [1087], [1095], [1103], [1111], [1119], [1127], [1135], [1143], [1151], [1159], [1167], [1175], [1183], [1191], [1199], [1204], [1208], [1212], [1216], [1220], [1223], [2279], [2283], [2287], [2293], [2297], [2299], [2306], [2307], [2308], [2310], [2311] [2018-09-19 11:08:39,496 INFO L148 AbstractInterpreter]: Using domain OctagonDomain [2018-09-19 11:08:39,496 INFO L101 FixpointEngine]: Starting fixpoint engine with domain OctagonDomain (maxUnwinding=3, maxParallelStates=1) [2018-09-19 11:08:41,863 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-09-19 11:08:48,205 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-19 11:08:48,206 INFO L272 AbstractInterpreter]: Visited 82 different actions 233 times. Merged at 5 different actions 9 times. Never widened. Found 1 fixpoints after 1 different actions. Largest state had 26 variables. [2018-09-19 11:08:48,247 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-19 11:08:49,554 INFO L232 lantSequenceWeakener]: Weakened 127 states. On average, predicates are now at 76.22% of their original sizes. [2018-09-19 11:08:49,555 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-19 11:08:50,238 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-19 11:08:50,239 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-19 11:08:50,239 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2018-09-19 11:08:50,239 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-19 11:08:50,241 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2018-09-19 11:08:50,241 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2018-09-19 11:08:50,241 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=116, Unknown=0, NotChecked=0, Total=156 [2018-09-19 11:08:50,242 INFO L87 Difference]: Start difference. First operand 1034 states and 1511 transitions. Second operand 13 states. [2018-09-19 11:09:19,915 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-19 11:09:19,915 INFO L93 Difference]: Finished difference Result 2814 states and 4895 transitions. [2018-09-19 11:09:19,916 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2018-09-19 11:09:19,916 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 129 [2018-09-19 11:09:19,917 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-19 11:09:19,929 INFO L225 Difference]: With dead ends: 2814 [2018-09-19 11:09:19,930 INFO L226 Difference]: Without dead ends: 2220 [2018-09-19 11:09:19,935 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 142 GetRequests, 117 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 137 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=157, Invalid=545, Unknown=0, NotChecked=0, Total=702 [2018-09-19 11:09:19,937 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2220 states. [2018-09-19 11:09:20,000 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2220 to 1497. [2018-09-19 11:09:20,000 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1497 states. [2018-09-19 11:09:20,007 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1497 states to 1497 states and 2009 transitions. [2018-09-19 11:09:20,007 INFO L78 Accepts]: Start accepts. Automaton has 1497 states and 2009 transitions. Word has length 129 [2018-09-19 11:09:20,008 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-19 11:09:20,008 INFO L480 AbstractCegarLoop]: Abstraction has 1497 states and 2009 transitions. [2018-09-19 11:09:20,009 INFO L481 AbstractCegarLoop]: Interpolant automaton has 13 states. [2018-09-19 11:09:20,009 INFO L276 IsEmpty]: Start isEmpty. Operand 1497 states and 2009 transitions. [2018-09-19 11:09:20,020 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2018-09-19 11:09:20,020 INFO L368 BasicCegarLoop]: Found error trace [2018-09-19 11:09:20,024 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 11:09:20,024 INFO L423 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-19 11:09:20,025 INFO L82 PathProgramCache]: Analyzing trace with hash -560331310, now seen corresponding path program 1 times [2018-09-19 11:09:20,025 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-19 11:09:20,025 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 143 with the following transitions: [2018-09-19 11:09:20,025 INFO L202 CegarAbsIntRunner]: [0], [1], [711], [718], [726], [734], [742], [750], [758], [766], [774], [782], [790], [798], [806], [814], [822], [830], [838], [846], [854], [862], [870], [878], [886], [894], [902], [910], [918], [926], [934], [942], [950], [958], [966], [974], [982], [990], [998], [1006], [1014], [1022], [1030], [1038], [1042], [1044], [1047], [1055], [1063], [1071], [1079], [1087], [1095], [1103], [1111], [1119], [1127], [1135], [1143], [1151], [1159], [1167], [1175], [1183], [1191], [1199], [1204], [1208], [1212], [1216], [1220], [1224], [1228], [1232], [1236], [1240], [1244], [1255], [1259], [1263], [1267], [1271], [1275], [1279], [1282], [2279], [2283], [2287], [2293], [2297], [2299], [2306], [2307], [2308], [2310], [2311] [2018-09-19 11:09:20,036 INFO L148 AbstractInterpreter]: Using domain OctagonDomain [2018-09-19 11:09:20,037 INFO L101 FixpointEngine]: Starting fixpoint engine with domain OctagonDomain (maxUnwinding=3, maxParallelStates=1) [2018-09-19 11:09:22,243 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-09-19 11:09:27,679 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-19 11:09:27,681 INFO L272 AbstractInterpreter]: Visited 95 different actions 272 times. Merged at 5 different actions 9 times. Never widened. Found 1 fixpoints after 1 different actions. Largest state had 26 variables. [2018-09-19 11:09:27,722 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-19 11:09:29,034 INFO L232 lantSequenceWeakener]: Weakened 140 states. On average, predicates are now at 76.11% of their original sizes. [2018-09-19 11:09:29,035 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-19 11:09:29,852 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-19 11:09:29,853 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-19 11:09:29,853 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2018-09-19 11:09:29,853 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-19 11:09:29,854 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2018-09-19 11:09:29,854 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2018-09-19 11:09:29,854 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=81, Unknown=0, NotChecked=0, Total=110 [2018-09-19 11:09:29,855 INFO L87 Difference]: Start difference. First operand 1497 states and 2009 transitions. Second operand 11 states. [2018-09-19 11:10:10,631 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-19 11:10:10,632 INFO L93 Difference]: Finished difference Result 2646 states and 4140 transitions. [2018-09-19 11:10:10,645 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2018-09-19 11:10:10,646 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 142 [2018-09-19 11:10:10,647 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-19 11:10:10,656 INFO L225 Difference]: With dead ends: 2646 [2018-09-19 11:10:10,657 INFO L226 Difference]: Without dead ends: 2052 [2018-09-19 11:10:10,659 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 150 GetRequests, 132 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 56 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=91, Invalid=289, Unknown=0, NotChecked=0, Total=380 [2018-09-19 11:10:10,664 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2052 states. [2018-09-19 11:10:10,725 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2052 to 1962. [2018-09-19 11:10:10,725 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1962 states. [2018-09-19 11:10:10,732 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1962 states to 1962 states and 2620 transitions. [2018-09-19 11:10:10,733 INFO L78 Accepts]: Start accepts. Automaton has 1962 states and 2620 transitions. Word has length 142 [2018-09-19 11:10:10,733 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-19 11:10:10,734 INFO L480 AbstractCegarLoop]: Abstraction has 1962 states and 2620 transitions. [2018-09-19 11:10:10,734 INFO L481 AbstractCegarLoop]: Interpolant automaton has 11 states. [2018-09-19 11:10:10,734 INFO L276 IsEmpty]: Start isEmpty. Operand 1962 states and 2620 transitions. [2018-09-19 11:10:10,738 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 218 [2018-09-19 11:10:10,739 INFO L368 BasicCegarLoop]: Found error trace [2018-09-19 11:10:10,739 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, 2, 2, 2, 2, 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] [2018-09-19 11:10:10,739 INFO L423 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-19 11:10:10,740 INFO L82 PathProgramCache]: Analyzing trace with hash 1120054312, now seen corresponding path program 1 times [2018-09-19 11:10:10,740 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-19 11:10:10,740 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 218 with the following transitions: [2018-09-19 11:10:10,741 INFO L202 CegarAbsIntRunner]: [0], [1], [711], [718], [726], [734], [742], [750], [758], [766], [774], [782], [790], [798], [806], [814], [822], [830], [838], [846], [854], [862], [870], [878], [886], [894], [902], [910], [918], [926], [934], [942], [950], [958], [966], [974], [982], [990], [998], [1006], [1014], [1022], [1030], [1038], [1042], [1044], [1047], [1055], [1063], [1071], [1079], [1087], [1095], [1103], [1111], [1119], [1127], [1135], [1143], [1151], [1159], [1167], [1175], [1183], [1191], [1199], [1204], [1208], [1212], [1216], [1220], [1223], [1224], [1228], [1232], [1236], [1240], [1244], [1255], [1259], [1263], [1267], [1271], [1275], [1279], [1282], [2279], [2283], [2287], [2293], [2297], [2299], [2306], [2307], [2308], [2310], [2311] [2018-09-19 11:10:10,745 INFO L148 AbstractInterpreter]: Using domain OctagonDomain [2018-09-19 11:10:10,745 INFO L101 FixpointEngine]: Starting fixpoint engine with domain OctagonDomain (maxUnwinding=3, maxParallelStates=1) [2018-09-19 11:10:12,340 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-09-19 11:10:26,768 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-19 11:10:26,769 INFO L272 AbstractInterpreter]: Visited 96 different actions 558 times. Merged at 7 different actions 37 times. Widened at 1 different actions 1 times. Found 7 fixpoints after 2 different actions. Largest state had 26 variables. [2018-09-19 11:10:26,777 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-19 11:10:28,081 INFO L232 lantSequenceWeakener]: Weakened 215 states. On average, predicates are now at 75.76% of their original sizes. [2018-09-19 11:10:28,082 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-19 11:10:28,512 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-19 11:10:28,512 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-19 11:10:28,512 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2018-09-19 11:10:28,512 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-19 11:10:28,513 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2018-09-19 11:10:28,513 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2018-09-19 11:10:28,513 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=98, Unknown=0, NotChecked=0, Total=132 [2018-09-19 11:10:28,514 INFO L87 Difference]: Start difference. First operand 1962 states and 2620 transitions. Second operand 12 states. [2018-09-19 11:11:09,611 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-19 11:11:09,612 INFO L93 Difference]: Finished difference Result 3982 states and 6007 transitions. [2018-09-19 11:11:09,619 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2018-09-19 11:11:09,620 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 217 [2018-09-19 11:11:09,621 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-19 11:11:09,640 INFO L225 Difference]: With dead ends: 3982 [2018-09-19 11:11:09,641 INFO L226 Difference]: Without dead ends: 3388 [2018-09-19 11:11:09,645 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 226 GetRequests, 206 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 71 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=111, Invalid=351, Unknown=0, NotChecked=0, Total=462 [2018-09-19 11:11:09,649 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3388 states. [2018-09-19 11:11:09,735 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3388 to 2433. [2018-09-19 11:11:09,736 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2433 states. [2018-09-19 11:11:09,744 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2433 states to 2433 states and 3279 transitions. [2018-09-19 11:11:09,745 INFO L78 Accepts]: Start accepts. Automaton has 2433 states and 3279 transitions. Word has length 217 [2018-09-19 11:11:09,746 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-19 11:11:09,746 INFO L480 AbstractCegarLoop]: Abstraction has 2433 states and 3279 transitions. [2018-09-19 11:11:09,746 INFO L481 AbstractCegarLoop]: Interpolant automaton has 12 states. [2018-09-19 11:11:09,746 INFO L276 IsEmpty]: Start isEmpty. Operand 2433 states and 3279 transitions. [2018-09-19 11:11:09,750 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 219 [2018-09-19 11:11:09,750 INFO L368 BasicCegarLoop]: Found error trace [2018-09-19 11:11:09,751 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, 2, 2, 2, 2, 2, 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] [2018-09-19 11:11:09,751 INFO L423 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-19 11:11:09,752 INFO L82 PathProgramCache]: Analyzing trace with hash 399890072, now seen corresponding path program 1 times [2018-09-19 11:11:09,752 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-19 11:11:09,752 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 219 with the following transitions: [2018-09-19 11:11:09,752 INFO L202 CegarAbsIntRunner]: [0], [1], [711], [718], [726], [734], [742], [750], [758], [766], [774], [782], [790], [798], [806], [814], [822], [830], [838], [846], [854], [862], [870], [878], [886], [894], [902], [910], [918], [926], [934], [942], [950], [958], [966], [974], [982], [990], [998], [1006], [1014], [1022], [1030], [1038], [1042], [1044], [1047], [1055], [1063], [1071], [1079], [1087], [1095], [1103], [1111], [1119], [1127], [1135], [1143], [1151], [1159], [1167], [1175], [1183], [1191], [1199], [1204], [1208], [1212], [1216], [1220], [1224], [1227], [1228], [1232], [1236], [1240], [1244], [1255], [1259], [1263], [1267], [1271], [1275], [1279], [1282], [2279], [2283], [2287], [2293], [2297], [2299], [2306], [2307], [2308], [2310], [2311] [2018-09-19 11:11:09,765 INFO L148 AbstractInterpreter]: Using domain OctagonDomain [2018-09-19 11:11:09,766 INFO L101 FixpointEngine]: Starting fixpoint engine with domain OctagonDomain (maxUnwinding=3, maxParallelStates=1) [2018-09-19 11:11:11,741 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-09-19 11:11:26,238 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-19 11:11:26,238 INFO L272 AbstractInterpreter]: Visited 96 different actions 461 times. Merged at 7 different actions 25 times. Never widened. Found 4 fixpoints after 1 different actions. Largest state had 26 variables. [2018-09-19 11:11:26,245 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-19 11:11:27,429 INFO L232 lantSequenceWeakener]: Weakened 216 states. On average, predicates are now at 75.76% of their original sizes. [2018-09-19 11:11:27,429 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-19 11:11:27,821 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-19 11:11:27,822 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-19 11:11:27,822 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2018-09-19 11:11:27,822 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-19 11:11:27,823 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2018-09-19 11:11:27,823 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2018-09-19 11:11:27,823 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=81, Unknown=0, NotChecked=0, Total=110 [2018-09-19 11:11:27,823 INFO L87 Difference]: Start difference. First operand 2433 states and 3279 transitions. Second operand 11 states. [2018-09-19 11:12:01,782 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-19 11:12:01,782 INFO L93 Difference]: Finished difference Result 4146 states and 6156 transitions. [2018-09-19 11:12:01,789 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2018-09-19 11:12:01,790 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 218 [2018-09-19 11:12:01,790 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-19 11:12:01,811 INFO L225 Difference]: With dead ends: 4146 [2018-09-19 11:12:01,811 INFO L226 Difference]: Without dead ends: 3552 [2018-09-19 11:12:01,816 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 226 GetRequests, 208 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 56 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=91, Invalid=289, Unknown=0, NotChecked=0, Total=380 [2018-09-19 11:12:01,822 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3552 states. [2018-09-19 11:12:01,920 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3552 to 3371. [2018-09-19 11:12:01,920 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3371 states. [2018-09-19 11:12:01,930 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3371 states to 3371 states and 4576 transitions. [2018-09-19 11:12:01,931 INFO L78 Accepts]: Start accepts. Automaton has 3371 states and 4576 transitions. Word has length 218 [2018-09-19 11:12:01,932 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-19 11:12:01,933 INFO L480 AbstractCegarLoop]: Abstraction has 3371 states and 4576 transitions. [2018-09-19 11:12:01,933 INFO L481 AbstractCegarLoop]: Interpolant automaton has 11 states. [2018-09-19 11:12:01,933 INFO L276 IsEmpty]: Start isEmpty. Operand 3371 states and 4576 transitions. [2018-09-19 11:12:01,937 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 220 [2018-09-19 11:12:01,937 INFO L368 BasicCegarLoop]: Found error trace [2018-09-19 11:12:01,937 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, 2, 2, 2, 2, 2, 2, 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 11:12:01,938 INFO L423 AbstractCegarLoop]: === Iteration 6 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-19 11:12:01,938 INFO L82 PathProgramCache]: Analyzing trace with hash 135886856, now seen corresponding path program 1 times [2018-09-19 11:12:01,938 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-19 11:12:01,938 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 220 with the following transitions: [2018-09-19 11:12:01,939 INFO L202 CegarAbsIntRunner]: [0], [1], [711], [718], [726], [734], [742], [750], [758], [766], [774], [782], [790], [798], [806], [814], [822], [830], [838], [846], [854], [862], [870], [878], [886], [894], [902], [910], [918], [926], [934], [942], [950], [958], [966], [974], [982], [990], [998], [1006], [1014], [1022], [1030], [1038], [1042], [1044], [1047], [1055], [1063], [1071], [1079], [1087], [1095], [1103], [1111], [1119], [1127], [1135], [1143], [1151], [1159], [1167], [1175], [1183], [1191], [1199], [1204], [1208], [1212], [1216], [1220], [1224], [1228], [1231], [1232], [1236], [1240], [1244], [1255], [1259], [1263], [1267], [1271], [1275], [1279], [1282], [2279], [2283], [2287], [2293], [2297], [2299], [2306], [2307], [2308], [2310], [2311] [2018-09-19 11:12:01,943 INFO L148 AbstractInterpreter]: Using domain OctagonDomain [2018-09-19 11:12:01,943 INFO L101 FixpointEngine]: Starting fixpoint engine with domain OctagonDomain (maxUnwinding=3, maxParallelStates=1) [2018-09-19 11:12:03,890 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-09-19 11:12:11,418 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-19 11:12:11,419 INFO L272 AbstractInterpreter]: Visited 96 different actions 371 times. Merged at 7 different actions 20 times. Never widened. Found 4 fixpoints after 1 different actions. Largest state had 26 variables. [2018-09-19 11:12:11,425 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-19 11:12:12,487 INFO L232 lantSequenceWeakener]: Weakened 217 states. On average, predicates are now at 75.75% of their original sizes. [2018-09-19 11:12:12,487 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-19 11:12:12,832 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-19 11:12:12,832 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-19 11:12:12,832 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2018-09-19 11:12:12,832 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-19 11:12:12,833 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2018-09-19 11:12:12,833 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2018-09-19 11:12:12,833 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=81, Unknown=0, NotChecked=0, Total=110 [2018-09-19 11:12:12,833 INFO L87 Difference]: Start difference. First operand 3371 states and 4576 transitions. Second operand 11 states. Received shutdown request... [2018-09-19 11:12:18,555 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2018-09-19 11:12:18,556 WARN L549 AbstractCegarLoop]: Verification canceled [2018-09-19 11:12:18,561 WARN L206 ceAbstractionStarter]: Timeout [2018-09-19 11:12:18,561 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.09 11:12:18 BoogieIcfgContainer [2018-09-19 11:12:18,561 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-09-19 11:12:18,562 INFO L168 Benchmark]: Toolchain (without parser) took 255124.77 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 1.9 GB in the end (delta: -486.1 MB). Peak memory consumption was 2.2 GB. Max. memory is 7.1 GB. [2018-09-19 11:12:18,565 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 11:12:18,565 INFO L168 Benchmark]: CACSL2BoogieTranslator took 1791.27 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.2 GB in the end (delta: 179.7 MB). Peak memory consumption was 179.7 MB. Max. memory is 7.1 GB. [2018-09-19 11:12:18,566 INFO L168 Benchmark]: Boogie Procedure Inliner took 381.75 ms. Allocated memory is still 1.5 GB. Free memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 52.8 MB). Peak memory consumption was 52.8 MB. Max. memory is 7.1 GB. [2018-09-19 11:12:18,567 INFO L168 Benchmark]: Boogie Preprocessor took 1066.04 ms. Allocated memory was 1.5 GB in the beginning and 2.4 GB in the end (delta: 900.2 MB). Free memory was 1.2 GB in the beginning and 2.3 GB in the end (delta: -1.1 GB). Peak memory consumption was 123.5 MB. Max. memory is 7.1 GB. [2018-09-19 11:12:18,568 INFO L168 Benchmark]: RCFGBuilder took 12873.43 ms. Allocated memory is still 2.4 GB. Free memory was 2.3 GB in the beginning and 1.8 GB in the end (delta: 448.9 MB). Peak memory consumption was 448.9 MB. Max. memory is 7.1 GB. [2018-09-19 11:12:18,569 INFO L168 Benchmark]: TraceAbstraction took 239002.25 ms. Allocated memory was 2.4 GB in the beginning and 4.2 GB in the end (delta: 1.8 GB). Free memory was 1.8 GB in the beginning and 1.9 GB in the end (delta: -49.2 MB). Peak memory consumption was 1.7 GB. Max. memory is 7.1 GB. [2018-09-19 11:12:18,574 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 1791.27 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.2 GB in the end (delta: 179.7 MB). Peak memory consumption was 179.7 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 381.75 ms. Allocated memory is still 1.5 GB. Free memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 52.8 MB). Peak memory consumption was 52.8 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 1066.04 ms. Allocated memory was 1.5 GB in the beginning and 2.4 GB in the end (delta: 900.2 MB). Free memory was 1.2 GB in the beginning and 2.3 GB in the end (delta: -1.1 GB). Peak memory consumption was 123.5 MB. Max. memory is 7.1 GB. * RCFGBuilder took 12873.43 ms. Allocated memory is still 2.4 GB. Free memory was 2.3 GB in the beginning and 1.8 GB in the end (delta: 448.9 MB). Peak memory consumption was 448.9 MB. Max. memory is 7.1 GB. * TraceAbstraction took 239002.25 ms. Allocated memory was 2.4 GB in the beginning and 4.2 GB in the end (delta: 1.8 GB). Free memory was 1.8 GB in the beginning and 1.9 GB in the end (delta: -49.2 MB). Peak memory consumption was 1.7 GB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResultAtElement [Line: 149]: Timeout (TraceAbstraction) Unable to prove that call of __VERIFIER_error() unreachable (line 149). Cancelled while BasicCegarLoop was constructing difference of abstraction (3371states) and FLOYD_HOARE automaton (currently 14 states, 11 states before enhancement), while ReachableStatesComputation was computing reachable states (542 states constructedinput type IntersectNwa). - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 604 locations, 1 error locations. TIMEOUT Result, 238.9s OverallTime, 6 OverallIterations, 3 TraceHistogramMax, 168.2s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 2860 SDtfs, 14798 SDslu, 3479 SDs, 0 SdLazy, 33452 SolverSat, 2810 SolverUnsat, 2 SolverUnknown, 0 SolverNotchecked, 155.2s Time, PredicateUnifierStatistics: 12 DeclaredPredicates, 1023 GetRequests, 921 SyntacticMatches, 0 SemanticMatches, 102 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 369 ImplicationChecksByTransitivity, 4.9s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=3371occurred in iteration=5, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 60.0s AbstIntTime, 6 AbstIntIterations, 6 AbstIntStrong, 0.9940167865707434 AbsIntWeakeningRatio, 0.14182939362795477 AbsIntAvgWeakeningVarsNumRemoved, 1054.0739979445016 AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.4s AutomataMinimizationTime, 5 MinimizatonAttempts, 1951 StatesRemovedByMinimization, 5 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/Problem17_label14_true-unreach-call.c_svcomp-Reach-64bit-ToothlessTaipan_OCT-OldIcfg.epf_AutomizerCInline.xml/Csv-Benchmark-0-2018-09-19_11-12-18-589.csv Written .csv to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/csv/Problem17_label14_true-unreach-call.c_svcomp-Reach-64bit-ToothlessTaipan_OCT-OldIcfg.epf_AutomizerCInline.xml/Csv-TraceAbstractionBenchmarks-0-2018-09-19_11-12-18-589.csv Completed graceful shutdown