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_INTCON-OldIcfg.epf -i ../../../trunk/examples/svcomp/eca-rers2012/Problem13_label33_true-unreach-call.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-69f5bdd-m [2018-09-19 12:52:44,438 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-09-19 12:52:44,440 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-09-19 12:52:44,453 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-09-19 12:52:44,453 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-09-19 12:52:44,454 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-09-19 12:52:44,456 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-09-19 12:52:44,458 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-09-19 12:52:44,459 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-09-19 12:52:44,460 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-09-19 12:52:44,461 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-09-19 12:52:44,461 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-09-19 12:52:44,462 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-09-19 12:52:44,463 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-09-19 12:52:44,464 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-09-19 12:52:44,465 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-09-19 12:52:44,466 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-09-19 12:52:44,468 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-09-19 12:52:44,470 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-09-19 12:52:44,472 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-09-19 12:52:44,473 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-09-19 12:52:44,474 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-09-19 12:52:44,477 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-09-19 12:52:44,477 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-09-19 12:52:44,477 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-09-19 12:52:44,478 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-09-19 12:52:44,479 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-09-19 12:52:44,480 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-09-19 12:52:44,481 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-09-19 12:52:44,482 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-09-19 12:52:44,483 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-09-19 12:52:44,484 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-09-19 12:52:44,484 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-09-19 12:52:44,484 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-09-19 12:52:44,487 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-09-19 12:52:44,488 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-09-19 12:52:44,492 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/ai/taipanbench/svcomp-Reach-64bit-ToothlessTaipan_INTCON-OldIcfg.epf [2018-09-19 12:52:44,513 INFO L110 SettingsManager]: Loading preferences was successful [2018-09-19 12:52:44,513 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-09-19 12:52:44,514 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-09-19 12:52:44,514 INFO L133 SettingsManager]: * User list type=DISABLED [2018-09-19 12:52:44,515 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-09-19 12:52:44,515 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-09-19 12:52:44,515 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-09-19 12:52:44,515 INFO L133 SettingsManager]: * Octagon Domain=false [2018-09-19 12:52:44,515 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-09-19 12:52:44,516 INFO L133 SettingsManager]: * Log string format=TERM [2018-09-19 12:52:44,516 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-09-19 12:52:44,516 INFO L133 SettingsManager]: * Parallel states before merging=1 [2018-09-19 12:52:44,517 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-09-19 12:52:44,517 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-09-19 12:52:44,517 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-09-19 12:52:44,518 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-09-19 12:52:44,518 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-09-19 12:52:44,518 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-09-19 12:52:44,518 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-09-19 12:52:44,518 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-09-19 12:52:44,519 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-09-19 12:52:44,519 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-09-19 12:52:44,519 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-09-19 12:52:44,519 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-09-19 12:52:44,519 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-09-19 12:52:44,520 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-09-19 12:52:44,520 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-09-19 12:52:44,520 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-09-19 12:52:44,520 INFO L133 SettingsManager]: * Trace refinement strategy=TOOTHLESS_TAIPAN [2018-09-19 12:52:44,521 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-09-19 12:52:44,521 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-09-19 12:52:44,521 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-09-19 12:52:44,521 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-09-19 12:52:44,521 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-09-19 12:52:44,576 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-09-19 12:52:44,590 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-09-19 12:52:44,594 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-09-19 12:52:44,596 INFO L271 PluginConnector]: Initializing CDTParser... [2018-09-19 12:52:44,596 INFO L276 PluginConnector]: CDTParser initialized [2018-09-19 12:52:44,597 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem13_label33_true-unreach-call.c [2018-09-19 12:52:44,951 INFO L221 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2ff85a282/baa32808c0da400ea0de832b2534989c/FLAG7532df1b5 [2018-09-19 12:52:45,477 INFO L277 CDTParser]: Found 1 translation units. [2018-09-19 12:52:45,478 INFO L159 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem13_label33_true-unreach-call.c [2018-09-19 12:52:45,517 INFO L325 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2ff85a282/baa32808c0da400ea0de832b2534989c/FLAG7532df1b5 [2018-09-19 12:52:45,541 INFO L333 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2ff85a282/baa32808c0da400ea0de832b2534989c [2018-09-19 12:52:45,554 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-09-19 12:52:45,560 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-09-19 12:52:45,562 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-09-19 12:52:45,562 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-09-19 12:52:45,572 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-09-19 12:52:45,574 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.09 12:52:45" (1/1) ... [2018-09-19 12:52:45,578 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@560f8b24 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 12:52:45, skipping insertion in model container [2018-09-19 12:52:45,578 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.09 12:52:45" (1/1) ... [2018-09-19 12:52:45,593 INFO L160 ieTranslatorObserver]: Starting translation in SV-COMP mode [2018-09-19 12:52:47,010 INFO L170 PostProcessor]: Settings: Checked method=main [2018-09-19 12:52:47,032 INFO L424 MainDispatcher]: Starting main dispatcher in SV-COMP mode [2018-09-19 12:52:48,089 INFO L170 PostProcessor]: Settings: Checked method=main [2018-09-19 12:52:48,445 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 12:52:48 WrapperNode [2018-09-19 12:52:48,446 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-09-19 12:52:48,447 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-09-19 12:52:48,447 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-09-19 12:52:48,447 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-09-19 12:52:48,457 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 12:52:48" (1/1) ... [2018-09-19 12:52:48,595 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 12:52:48" (1/1) ... [2018-09-19 12:52:48,798 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-09-19 12:52:48,799 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-09-19 12:52:48,799 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-09-19 12:52:48,799 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-09-19 12:52:49,610 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 12:52:48" (1/1) ... [2018-09-19 12:52:49,610 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 12:52:48" (1/1) ... [2018-09-19 12:52:49,701 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 12:52:48" (1/1) ... [2018-09-19 12:52:49,701 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 12:52:48" (1/1) ... [2018-09-19 12:52:49,923 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 12:52:48" (1/1) ... [2018-09-19 12:52:49,962 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 12:52:48" (1/1) ... [2018-09-19 12:52:50,063 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 12:52:48" (1/1) ... [2018-09-19 12:52:50,155 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-09-19 12:52:50,156 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-09-19 12:52:50,156 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-09-19 12:52:50,156 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-09-19 12:52:50,159 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 12:52:48" (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 12:52:50,235 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-09-19 12:52:50,236 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-09-19 12:52:50,236 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output4 [2018-09-19 12:52:50,236 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output4 [2018-09-19 12:52:50,236 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output3 [2018-09-19 12:52:50,236 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output3 [2018-09-19 12:52:50,237 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output2 [2018-09-19 12:52:50,237 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output2 [2018-09-19 12:52:50,237 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2018-09-19 12:52:50,237 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2018-09-19 12:52:50,237 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-09-19 12:52:50,237 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-09-19 12:52:50,238 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-09-19 12:52:50,238 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-09-19 12:53:00,639 INFO L356 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-09-19 12:53:00,640 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.09 12:53:00 BoogieIcfgContainer [2018-09-19 12:53:00,640 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-09-19 12:53:00,641 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-09-19 12:53:00,641 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-09-19 12:53:00,644 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-09-19 12:53:00,644 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.09 12:52:45" (1/3) ... [2018-09-19 12:53:00,645 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@12df1084 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.09 12:53:00, skipping insertion in model container [2018-09-19 12:53:00,645 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 12:52:48" (2/3) ... [2018-09-19 12:53:00,646 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@12df1084 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.09 12:53:00, skipping insertion in model container [2018-09-19 12:53:00,646 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.09 12:53:00" (3/3) ... [2018-09-19 12:53:00,647 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem13_label33_true-unreach-call.c [2018-09-19 12:53:00,656 INFO L137 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-09-19 12:53:00,664 INFO L149 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-09-19 12:53:00,723 INFO L130 ementStrategyFactory]: Using default assertion order modulation [2018-09-19 12:53:00,724 INFO L381 AbstractCegarLoop]: Interprodecural is true [2018-09-19 12:53:00,724 INFO L382 AbstractCegarLoop]: Hoare is true [2018-09-19 12:53:00,724 INFO L383 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-09-19 12:53:00,724 INFO L384 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-09-19 12:53:00,725 INFO L385 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-09-19 12:53:00,725 INFO L386 AbstractCegarLoop]: Difference is false [2018-09-19 12:53:00,725 INFO L387 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-09-19 12:53:00,725 INFO L392 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-09-19 12:53:00,767 INFO L276 IsEmpty]: Start isEmpty. Operand 1120 states. [2018-09-19 12:53:00,776 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2018-09-19 12:53:00,776 INFO L368 BasicCegarLoop]: Found error trace [2018-09-19 12:53:00,777 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] [2018-09-19 12:53:00,779 INFO L423 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-19 12:53:00,784 INFO L82 PathProgramCache]: Analyzing trace with hash -1221067980, now seen corresponding path program 1 times [2018-09-19 12:53:00,787 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-19 12:53:00,788 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 43 with the following transitions: [2018-09-19 12:53:00,791 INFO L202 CegarAbsIntRunner]: [0], [1], [2628], [2635], [2643], [2651], [2659], [2667], [2675], [2683], [2691], [2699], [2707], [2715], [2723], [2731], [2739], [2747], [2755], [2763], [2771], [2779], [2787], [2795], [2803], [2811], [2819], [2827], [2835], [2843], [2851], [2859], [2863], [2865], [4242], [4246], [4252], [4256], [4269], [4270], [4271], [4273] [2018-09-19 12:53:00,834 INFO L148 AbstractInterpreter]: Using domain CompoundDomain [CongruenceDomain, IntervalDomain] [2018-09-19 12:53:00,834 INFO L101 FixpointEngine]: Starting fixpoint engine with domain CompoundDomain (maxUnwinding=3, maxParallelStates=1) [2018-09-19 12:53:01,124 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-19 12:53:01,126 INFO L272 AbstractInterpreter]: Visited 41 different actions 41 times. Never merged. Never widened. Never found a fixpoint. Largest state had 25 variables. [2018-09-19 12:53:01,179 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-19 12:53:01,386 INFO L232 lantSequenceWeakener]: Weakened 39 states. On average, predicates are now at 72.26% of their original sizes. [2018-09-19 12:53:01,387 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-19 12:53:01,632 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-19 12:53:01,637 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-19 12:53:01,637 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-09-19 12:53:01,637 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-19 12:53:01,644 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-09-19 12:53:01,651 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-09-19 12:53:01,652 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2018-09-19 12:53:01,655 INFO L87 Difference]: Start difference. First operand 1120 states. Second operand 6 states. [2018-09-19 12:53:16,805 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-19 12:53:16,805 INFO L93 Difference]: Finished difference Result 3044 states and 5648 transitions. [2018-09-19 12:53:16,807 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-09-19 12:53:16,808 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 42 [2018-09-19 12:53:16,809 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-19 12:53:16,843 INFO L225 Difference]: With dead ends: 3044 [2018-09-19 12:53:16,843 INFO L226 Difference]: Without dead ends: 1922 [2018-09-19 12:53:16,853 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 41 GetRequests, 37 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2018-09-19 12:53:16,877 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1922 states. [2018-09-19 12:53:16,998 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1922 to 1920. [2018-09-19 12:53:17,000 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1920 states. [2018-09-19 12:53:17,010 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1920 states to 1920 states and 2831 transitions. [2018-09-19 12:53:17,012 INFO L78 Accepts]: Start accepts. Automaton has 1920 states and 2831 transitions. Word has length 42 [2018-09-19 12:53:17,013 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-19 12:53:17,013 INFO L480 AbstractCegarLoop]: Abstraction has 1920 states and 2831 transitions. [2018-09-19 12:53:17,013 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-09-19 12:53:17,013 INFO L276 IsEmpty]: Start isEmpty. Operand 1920 states and 2831 transitions. [2018-09-19 12:53:17,023 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2018-09-19 12:53:17,023 INFO L368 BasicCegarLoop]: Found error trace [2018-09-19 12:53:17,024 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 12:53:17,024 INFO L423 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-19 12:53:17,024 INFO L82 PathProgramCache]: Analyzing trace with hash 1330506088, now seen corresponding path program 1 times [2018-09-19 12:53:17,025 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-19 12:53:17,026 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 144 with the following transitions: [2018-09-19 12:53:17,026 INFO L202 CegarAbsIntRunner]: [0], [1], [2628], [2635], [2643], [2651], [2659], [2667], [2675], [2683], [2691], [2699], [2707], [2715], [2723], [2731], [2739], [2747], [2755], [2763], [2771], [2779], [2787], [2795], [2803], [2811], [2819], [2827], [2835], [2843], [2851], [2859], [2863], [2865], [2868], [2876], [2884], [2892], [2900], [2908], [2916], [2924], [2932], [2940], [2948], [2956], [2964], [2972], [2980], [2988], [2996], [3004], [3012], [3020], [3028], [3036], [3044], [3052], [3060], [3068], [3076], [3084], [3092], [3100], [3108], [3116], [3121], [3125], [3129], [3133], [3137], [3148], [3152], [3156], [3160], [3164], [3168], [3179], [3183], [3187], [3191], [3195], [3199], [3203], [3207], [3218], [3222], [3226], [3230], [3234], [3238], [3242], [3246], [3250], [3254], [3258], [3262], [3265], [4238], [4242], [4246], [4252], [4256], [4258], [4269], [4270], [4271], [4273], [4274] [2018-09-19 12:53:17,039 INFO L148 AbstractInterpreter]: Using domain CompoundDomain [CongruenceDomain, IntervalDomain] [2018-09-19 12:53:17,039 INFO L101 FixpointEngine]: Starting fixpoint engine with domain CompoundDomain (maxUnwinding=3, maxParallelStates=1) [2018-09-19 12:53:17,511 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-19 12:53:17,511 INFO L272 AbstractInterpreter]: Visited 108 different actions 311 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 12:53:17,549 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-19 12:53:17,830 INFO L232 lantSequenceWeakener]: Weakened 140 states. On average, predicates are now at 71.29% of their original sizes. [2018-09-19 12:53:17,831 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-19 12:53:18,564 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-19 12:53:18,564 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-19 12:53:18,564 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2018-09-19 12:53:18,565 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-19 12:53:18,566 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2018-09-19 12:53:18,566 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2018-09-19 12:53:18,566 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2018-09-19 12:53:18,566 INFO L87 Difference]: Start difference. First operand 1920 states and 2831 transitions. Second operand 10 states. [2018-09-19 12:53:32,144 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-19 12:53:32,145 INFO L93 Difference]: Finished difference Result 3841 states and 6447 transitions. [2018-09-19 12:53:32,145 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2018-09-19 12:53:32,146 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 143 [2018-09-19 12:53:32,147 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-19 12:53:32,161 INFO L225 Difference]: With dead ends: 3841 [2018-09-19 12:53:32,161 INFO L226 Difference]: Without dead ends: 2731 [2018-09-19 12:53:32,166 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 149 GetRequests, 134 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 33 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=68, Invalid=204, Unknown=0, NotChecked=0, Total=272 [2018-09-19 12:53:32,169 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2731 states. [2018-09-19 12:53:32,222 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2731 to 2726. [2018-09-19 12:53:32,222 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2726 states. [2018-09-19 12:53:32,232 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2726 states to 2726 states and 3662 transitions. [2018-09-19 12:53:32,233 INFO L78 Accepts]: Start accepts. Automaton has 2726 states and 3662 transitions. Word has length 143 [2018-09-19 12:53:32,234 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-19 12:53:32,234 INFO L480 AbstractCegarLoop]: Abstraction has 2726 states and 3662 transitions. [2018-09-19 12:53:32,234 INFO L481 AbstractCegarLoop]: Interpolant automaton has 10 states. [2018-09-19 12:53:32,234 INFO L276 IsEmpty]: Start isEmpty. Operand 2726 states and 3662 transitions. [2018-09-19 12:53:32,238 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 173 [2018-09-19 12:53:32,238 INFO L368 BasicCegarLoop]: Found error trace [2018-09-19 12:53:32,239 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 12:53:32,239 INFO L423 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-19 12:53:32,239 INFO L82 PathProgramCache]: Analyzing trace with hash -210857615, now seen corresponding path program 1 times [2018-09-19 12:53:32,240 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-19 12:53:32,240 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 173 with the following transitions: [2018-09-19 12:53:32,241 INFO L202 CegarAbsIntRunner]: [0], [1], [2628], [2635], [2643], [2651], [2659], [2667], [2675], [2683], [2691], [2699], [2707], [2715], [2723], [2731], [2739], [2747], [2755], [2763], [2771], [2779], [2787], [2795], [2803], [2811], [2819], [2827], [2835], [2843], [2851], [2859], [2863], [2865], [2868], [2876], [2884], [2892], [2900], [2908], [2916], [2924], [2932], [2940], [2948], [2956], [2964], [2972], [2980], [2988], [2996], [3004], [3012], [3020], [3028], [3036], [3044], [3052], [3060], [3068], [3076], [3084], [3092], [3100], [3108], [3116], [3121], [3125], [3129], [3133], [3137], [3148], [3152], [3156], [3160], [3164], [3168], [3179], [3183], [3187], [3191], [3195], [3199], [3203], [3207], [3218], [3222], [3226], [3230], [3234], [3238], [3242], [3246], [3250], [3254], [3258], [3262], [3266], [3270], [3274], [3278], [3282], [3286], [3290], [3294], [3305], [3309], [3313], [3317], [3321], [3325], [3329], [3333], [3344], [3355], [3366], [3370], [3374], [3378], [3382], [3386], [3390], [3394], [3398], [3402], [3406], [3409], [4238], [4242], [4246], [4252], [4256], [4258], [4269], [4270], [4271], [4273], [4274] [2018-09-19 12:53:32,246 INFO L148 AbstractInterpreter]: Using domain CompoundDomain [CongruenceDomain, IntervalDomain] [2018-09-19 12:53:32,246 INFO L101 FixpointEngine]: Starting fixpoint engine with domain CompoundDomain (maxUnwinding=3, maxParallelStates=1) [2018-09-19 12:53:32,471 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-09-19 12:53:32,823 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-19 12:53:32,823 INFO L272 AbstractInterpreter]: Visited 137 different actions 398 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 12:53:32,863 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-19 12:53:33,239 INFO L232 lantSequenceWeakener]: Weakened 169 states. On average, predicates are now at 71.21% of their original sizes. [2018-09-19 12:53:33,239 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-19 12:53:33,894 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-19 12:53:33,895 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-19 12:53:33,895 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2018-09-19 12:53:33,895 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-19 12:53:33,896 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2018-09-19 12:53:33,897 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2018-09-19 12:53:33,897 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2018-09-19 12:53:33,897 INFO L87 Difference]: Start difference. First operand 2726 states and 3662 transitions. Second operand 10 states. [2018-09-19 12:53:55,086 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-19 12:53:55,086 INFO L93 Difference]: Finished difference Result 4658 states and 7291 transitions. [2018-09-19 12:53:55,094 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2018-09-19 12:53:55,095 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 172 [2018-09-19 12:53:55,096 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-19 12:53:55,113 INFO L225 Difference]: With dead ends: 4658 [2018-09-19 12:53:55,114 INFO L226 Difference]: Without dead ends: 3548 [2018-09-19 12:53:55,118 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 178 GetRequests, 163 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 33 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=68, Invalid=204, Unknown=0, NotChecked=0, Total=272 [2018-09-19 12:53:55,121 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3548 states. [2018-09-19 12:53:55,191 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3548 to 3542. [2018-09-19 12:53:55,191 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3542 states. [2018-09-19 12:53:55,201 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3542 states to 3542 states and 4500 transitions. [2018-09-19 12:53:55,202 INFO L78 Accepts]: Start accepts. Automaton has 3542 states and 4500 transitions. Word has length 172 [2018-09-19 12:53:55,203 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-19 12:53:55,203 INFO L480 AbstractCegarLoop]: Abstraction has 3542 states and 4500 transitions. [2018-09-19 12:53:55,203 INFO L481 AbstractCegarLoop]: Interpolant automaton has 10 states. [2018-09-19 12:53:55,203 INFO L276 IsEmpty]: Start isEmpty. Operand 3542 states and 4500 transitions. [2018-09-19 12:53:55,213 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 238 [2018-09-19 12:53:55,213 INFO L368 BasicCegarLoop]: Found error trace [2018-09-19 12:53:55,214 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-19 12:53:55,214 INFO L423 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-19 12:53:55,214 INFO L82 PathProgramCache]: Analyzing trace with hash 1235085972, now seen corresponding path program 1 times [2018-09-19 12:53:55,215 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-19 12:53:55,215 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 238 with the following transitions: [2018-09-19 12:53:55,215 INFO L202 CegarAbsIntRunner]: [0], [1], [2628], [2635], [2643], [2651], [2659], [2667], [2675], [2683], [2691], [2699], [2707], [2715], [2723], [2731], [2739], [2747], [2755], [2763], [2771], [2779], [2787], [2795], [2803], [2811], [2819], [2827], [2835], [2843], [2851], [2859], [2863], [2865], [2868], [2876], [2884], [2892], [2900], [2908], [2916], [2924], [2932], [2940], [2948], [2956], [2964], [2972], [2980], [2988], [2996], [3004], [3012], [3020], [3028], [3036], [3044], [3052], [3060], [3068], [3076], [3084], [3092], [3100], [3108], [3116], [3121], [3125], [3129], [3133], [3137], [3148], [3152], [3156], [3160], [3164], [3168], [3179], [3183], [3187], [3191], [3195], [3199], [3203], [3207], [3218], [3222], [3226], [3230], [3234], [3237], [3238], [3242], [3246], [3250], [3254], [3258], [3262], [3265], [4238], [4242], [4246], [4252], [4256], [4258], [4269], [4270], [4271], [4273], [4274] [2018-09-19 12:53:55,220 INFO L148 AbstractInterpreter]: Using domain CompoundDomain [CongruenceDomain, IntervalDomain] [2018-09-19 12:53:55,220 INFO L101 FixpointEngine]: Starting fixpoint engine with domain CompoundDomain (maxUnwinding=3, maxParallelStates=1) [2018-09-19 12:53:55,377 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-09-19 12:53:55,528 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-19 12:53:55,528 INFO L272 AbstractInterpreter]: Visited 109 different actions 423 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 12:53:55,555 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-19 12:53:55,905 INFO L232 lantSequenceWeakener]: Weakened 234 states. On average, predicates are now at 71.14% of their original sizes. [2018-09-19 12:53:55,905 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-19 12:53:56,267 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-19 12:53:56,267 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-19 12:53:56,267 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2018-09-19 12:53:56,268 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-19 12:53:56,268 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2018-09-19 12:53:56,269 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2018-09-19 12:53:56,269 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2018-09-19 12:53:56,269 INFO L87 Difference]: Start difference. First operand 3542 states and 4500 transitions. Second operand 10 states. [2018-09-19 12:54:11,394 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-19 12:54:11,395 INFO L93 Difference]: Finished difference Result 6286 states and 8969 transitions. [2018-09-19 12:54:11,403 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2018-09-19 12:54:11,404 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 237 [2018-09-19 12:54:11,404 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-19 12:54:11,422 INFO L225 Difference]: With dead ends: 6286 [2018-09-19 12:54:11,422 INFO L226 Difference]: Without dead ends: 4360 [2018-09-19 12:54:11,429 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 243 GetRequests, 228 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 33 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=68, Invalid=204, Unknown=0, NotChecked=0, Total=272 [2018-09-19 12:54:11,434 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4360 states. [2018-09-19 12:54:11,507 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4360 to 4349. [2018-09-19 12:54:11,508 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4349 states. [2018-09-19 12:54:11,519 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4349 states to 4349 states and 5346 transitions. [2018-09-19 12:54:11,520 INFO L78 Accepts]: Start accepts. Automaton has 4349 states and 5346 transitions. Word has length 237 [2018-09-19 12:54:11,520 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-19 12:54:11,520 INFO L480 AbstractCegarLoop]: Abstraction has 4349 states and 5346 transitions. [2018-09-19 12:54:11,521 INFO L481 AbstractCegarLoop]: Interpolant automaton has 10 states. [2018-09-19 12:54:11,521 INFO L276 IsEmpty]: Start isEmpty. Operand 4349 states and 5346 transitions. [2018-09-19 12:54:11,524 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 250 [2018-09-19 12:54:11,525 INFO L368 BasicCegarLoop]: Found error trace [2018-09-19 12:54:11,525 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-19 12:54:11,525 INFO L423 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-19 12:54:11,526 INFO L82 PathProgramCache]: Analyzing trace with hash 1817014396, now seen corresponding path program 1 times [2018-09-19 12:54:11,526 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-19 12:54:11,526 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 250 with the following transitions: [2018-09-19 12:54:11,526 INFO L202 CegarAbsIntRunner]: [0], [1], [2628], [2635], [2643], [2651], [2659], [2667], [2675], [2683], [2691], [2699], [2707], [2715], [2723], [2731], [2739], [2747], [2755], [2763], [2771], [2779], [2787], [2795], [2803], [2811], [2819], [2827], [2835], [2843], [2851], [2859], [2863], [2865], [2868], [2876], [2884], [2892], [2900], [2908], [2916], [2924], [2932], [2940], [2948], [2956], [2964], [2972], [2980], [2988], [2996], [3004], [3012], [3020], [3028], [3036], [3044], [3052], [3060], [3068], [3076], [3084], [3092], [3100], [3108], [3116], [3121], [3125], [3129], [3133], [3137], [3148], [3152], [3156], [3160], [3164], [3168], [3179], [3183], [3187], [3191], [3195], [3199], [3203], [3207], [3218], [3222], [3226], [3230], [3234], [3238], [3242], [3246], [3250], [3254], [3258], [3262], [3265], [3266], [3270], [3274], [3278], [3282], [3285], [4238], [4242], [4246], [4252], [4256], [4258], [4269], [4270], [4271], [4273], [4274] [2018-09-19 12:54:11,530 INFO L148 AbstractInterpreter]: Using domain CompoundDomain [CongruenceDomain, IntervalDomain] [2018-09-19 12:54:11,530 INFO L101 FixpointEngine]: Starting fixpoint engine with domain CompoundDomain (maxUnwinding=3, maxParallelStates=1) [2018-09-19 12:54:11,691 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-09-19 12:54:11,963 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-19 12:54:11,963 INFO L272 AbstractInterpreter]: Visited 114 different actions 554 times. Merged at 7 different actions 28 times. Never widened. Found 5 fixpoints after 2 different actions. Largest state had 26 variables. [2018-09-19 12:54:12,007 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-19 12:54:12,391 INFO L232 lantSequenceWeakener]: Weakened 246 states. On average, predicates are now at 71.13% of their original sizes. [2018-09-19 12:54:12,392 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-19 12:54:12,550 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-19 12:54:12,550 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-19 12:54:12,550 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2018-09-19 12:54:12,550 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-19 12:54:12,551 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2018-09-19 12:54:12,551 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2018-09-19 12:54:12,551 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2018-09-19 12:54:12,552 INFO L87 Difference]: Start difference. First operand 4349 states and 5346 transitions. Second operand 10 states. [2018-09-19 12:54:34,463 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-19 12:54:34,463 INFO L93 Difference]: Finished difference Result 7115 states and 9845 transitions. [2018-09-19 12:54:34,468 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2018-09-19 12:54:34,469 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 249 [2018-09-19 12:54:34,469 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-19 12:54:34,487 INFO L225 Difference]: With dead ends: 7115 [2018-09-19 12:54:34,487 INFO L226 Difference]: Without dead ends: 5189 [2018-09-19 12:54:34,493 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 256 GetRequests, 240 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 41 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=74, Invalid=232, Unknown=0, NotChecked=0, Total=306 [2018-09-19 12:54:34,499 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5189 states. [2018-09-19 12:54:34,579 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5189 to 5167. [2018-09-19 12:54:34,579 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5167 states. [2018-09-19 12:54:34,588 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5167 states to 5167 states and 6284 transitions. [2018-09-19 12:54:34,589 INFO L78 Accepts]: Start accepts. Automaton has 5167 states and 6284 transitions. Word has length 249 [2018-09-19 12:54:34,590 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-19 12:54:34,590 INFO L480 AbstractCegarLoop]: Abstraction has 5167 states and 6284 transitions. [2018-09-19 12:54:34,590 INFO L481 AbstractCegarLoop]: Interpolant automaton has 10 states. [2018-09-19 12:54:34,590 INFO L276 IsEmpty]: Start isEmpty. Operand 5167 states and 6284 transitions. [2018-09-19 12:54:34,594 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 266 [2018-09-19 12:54:34,594 INFO L368 BasicCegarLoop]: Found error trace [2018-09-19 12:54:34,595 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 12:54:34,595 INFO L423 AbstractCegarLoop]: === Iteration 6 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-19 12:54:34,595 INFO L82 PathProgramCache]: Analyzing trace with hash 472400636, now seen corresponding path program 1 times [2018-09-19 12:54:34,595 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-19 12:54:34,596 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 266 with the following transitions: [2018-09-19 12:54:34,596 INFO L202 CegarAbsIntRunner]: [0], [1], [2628], [2635], [2643], [2651], [2659], [2667], [2675], [2683], [2691], [2699], [2707], [2715], [2723], [2731], [2739], [2747], [2755], [2763], [2771], [2779], [2787], [2795], [2803], [2811], [2819], [2827], [2835], [2843], [2851], [2859], [2863], [2865], [2868], [2876], [2884], [2892], [2900], [2908], [2916], [2924], [2932], [2940], [2948], [2956], [2964], [2972], [2980], [2988], [2996], [3004], [3012], [3020], [3028], [3036], [3044], [3052], [3060], [3068], [3076], [3084], [3092], [3100], [3108], [3116], [3121], [3125], [3129], [3133], [3137], [3148], [3152], [3156], [3160], [3164], [3168], [3179], [3183], [3187], [3191], [3195], [3199], [3203], [3207], [3218], [3222], [3226], [3230], [3234], [3238], [3242], [3246], [3250], [3254], [3258], [3262], [3266], [3270], [3274], [3278], [3282], [3286], [3290], [3294], [3305], [3309], [3313], [3317], [3321], [3325], [3329], [3333], [3344], [3355], [3366], [3370], [3374], [3378], [3382], [3386], [3390], [3394], [3398], [3402], [3406], [3410], [3414], [3425], [3429], [3440], [3451], [3455], [3459], [3463], [3467], [3471], [3475], [3479], [3483], [3487], [3498], [3502], [3506], [3517], [3521], [3525], [3529], [3533], [3537], [3541], [3545], [3556], [3560], [3564], [3568], [3572], [3576], [3580], [3591], [3595], [3599], [3603], [3614], [3618], [3622], [3626], [3630], [3634], [3638], [3642], [3646], [3650], [3654], [3658], [3662], [3666], [3670], [3674], [3678], [3682], [3686], [3690], [3694], [3698], [3709], [3713], [3717], [3721], [3725], [3729], [3733], [3737], [3741], [3745], [3749], [3753], [3757], [3768], [3772], [3776], [3780], [3784], [3788], [3792], [3796], [3800], [3804], [3815], [3819], [3823], [3827], [3831], [3835], [3839], [3843], [3847], [3851], [3862], [3865], [4238], [4242], [4246], [4252], [4256], [4258], [4269], [4270], [4271], [4273], [4274] [2018-09-19 12:54:34,605 INFO L148 AbstractInterpreter]: Using domain CompoundDomain [CongruenceDomain, IntervalDomain] [2018-09-19 12:54:34,605 INFO L101 FixpointEngine]: Starting fixpoint engine with domain CompoundDomain (maxUnwinding=3, maxParallelStates=1) [2018-09-19 12:54:34,908 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-09-19 12:54:35,383 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-19 12:54:35,383 INFO L272 AbstractInterpreter]: Visited 230 different actions 677 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 12:54:35,419 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-19 12:54:35,832 INFO L232 lantSequenceWeakener]: Weakened 262 states. On average, predicates are now at 71.08% of their original sizes. [2018-09-19 12:54:35,832 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-19 12:54:36,238 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-19 12:54:36,238 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-19 12:54:36,239 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2018-09-19 12:54:36,239 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-19 12:54:36,239 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2018-09-19 12:54:36,240 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2018-09-19 12:54:36,240 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2018-09-19 12:54:36,240 INFO L87 Difference]: Start difference. First operand 5167 states and 6284 transitions. Second operand 10 states. [2018-09-19 12:54:56,038 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-19 12:54:56,039 INFO L93 Difference]: Finished difference Result 9545 states and 12511 transitions. [2018-09-19 12:54:56,039 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2018-09-19 12:54:56,039 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 265 [2018-09-19 12:54:56,040 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-19 12:54:56,058 INFO L225 Difference]: With dead ends: 9545 [2018-09-19 12:54:56,059 INFO L226 Difference]: Without dead ends: 6800 [2018-09-19 12:54:56,066 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 271 GetRequests, 256 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 33 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=68, Invalid=204, Unknown=0, NotChecked=0, Total=272 [2018-09-19 12:54:56,071 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6800 states. [2018-09-19 12:54:56,166 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6800 to 6794. [2018-09-19 12:54:56,166 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6794 states. [2018-09-19 12:54:56,176 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6794 states to 6794 states and 7947 transitions. [2018-09-19 12:54:56,176 INFO L78 Accepts]: Start accepts. Automaton has 6794 states and 7947 transitions. Word has length 265 [2018-09-19 12:54:56,177 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-19 12:54:56,177 INFO L480 AbstractCegarLoop]: Abstraction has 6794 states and 7947 transitions. [2018-09-19 12:54:56,177 INFO L481 AbstractCegarLoop]: Interpolant automaton has 10 states. [2018-09-19 12:54:56,177 INFO L276 IsEmpty]: Start isEmpty. Operand 6794 states and 7947 transitions. [2018-09-19 12:54:56,181 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 274 [2018-09-19 12:54:56,182 INFO L368 BasicCegarLoop]: Found error trace [2018-09-19 12:54:56,182 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2018-09-19 12:54:56,182 INFO L423 AbstractCegarLoop]: === Iteration 7 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-19 12:54:56,183 INFO L82 PathProgramCache]: Analyzing trace with hash 2088403621, now seen corresponding path program 1 times [2018-09-19 12:54:56,183 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-19 12:54:56,183 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 274 with the following transitions: [2018-09-19 12:54:56,183 INFO L202 CegarAbsIntRunner]: [0], [1], [2628], [2635], [2643], [2651], [2659], [2667], [2675], [2683], [2691], [2699], [2707], [2715], [2723], [2731], [2739], [2747], [2755], [2763], [2771], [2779], [2787], [2795], [2803], [2811], [2819], [2827], [2835], [2843], [2851], [2859], [2863], [2865], [2868], [2876], [2884], [2892], [2900], [2908], [2916], [2924], [2932], [2940], [2948], [2956], [2964], [2972], [2980], [2988], [2996], [3004], [3012], [3020], [3028], [3036], [3044], [3052], [3060], [3068], [3076], [3084], [3092], [3100], [3108], [3116], [3121], [3125], [3129], [3133], [3137], [3148], [3152], [3156], [3160], [3164], [3168], [3179], [3183], [3187], [3191], [3195], [3199], [3203], [3207], [3218], [3222], [3226], [3230], [3234], [3238], [3242], [3246], [3250], [3254], [3258], [3262], [3265], [3266], [3270], [3274], [3278], [3282], [3286], [3290], [3294], [3305], [3309], [3313], [3317], [3321], [3325], [3329], [3333], [3344], [3355], [3366], [3370], [3374], [3378], [3382], [3386], [3390], [3394], [3398], [3402], [3406], [3409], [4238], [4242], [4246], [4252], [4256], [4258], [4269], [4270], [4271], [4273], [4274] [2018-09-19 12:54:56,186 INFO L148 AbstractInterpreter]: Using domain CompoundDomain [CongruenceDomain, IntervalDomain] [2018-09-19 12:54:56,186 INFO L101 FixpointEngine]: Starting fixpoint engine with domain CompoundDomain (maxUnwinding=3, maxParallelStates=1) [2018-09-19 12:54:56,310 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-09-19 12:54:56,704 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-19 12:54:56,705 INFO L272 AbstractInterpreter]: Visited 138 different actions 675 times. Merged at 7 different actions 29 times. Never widened. Found 6 fixpoints after 1 different actions. Largest state had 26 variables. [2018-09-19 12:54:56,735 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-19 12:54:57,113 INFO L232 lantSequenceWeakener]: Weakened 270 states. On average, predicates are now at 71.1% of their original sizes. [2018-09-19 12:54:57,113 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-19 12:54:57,234 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-19 12:54:57,234 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-19 12:54:57,234 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2018-09-19 12:54:57,235 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-19 12:54:57,235 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2018-09-19 12:54:57,235 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2018-09-19 12:54:57,236 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2018-09-19 12:54:57,236 INFO L87 Difference]: Start difference. First operand 6794 states and 7947 transitions. Second operand 10 states. [2018-09-19 12:55:12,775 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-19 12:55:12,776 INFO L93 Difference]: Finished difference Result 13654 states and 16856 transitions. [2018-09-19 12:55:12,776 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2018-09-19 12:55:12,776 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 273 [2018-09-19 12:55:12,777 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-19 12:55:12,808 INFO L225 Difference]: With dead ends: 13654 [2018-09-19 12:55:12,808 INFO L226 Difference]: Without dead ends: 9279 [2018-09-19 12:55:12,819 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 280 GetRequests, 264 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 41 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=74, Invalid=232, Unknown=0, NotChecked=0, Total=306 [2018-09-19 12:55:12,828 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9279 states. [2018-09-19 12:55:12,971 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9279 to 9252. [2018-09-19 12:55:12,971 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9252 states. [2018-09-19 12:55:12,984 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9252 states to 9252 states and 10537 transitions. [2018-09-19 12:55:12,984 INFO L78 Accepts]: Start accepts. Automaton has 9252 states and 10537 transitions. Word has length 273 [2018-09-19 12:55:12,986 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-19 12:55:12,986 INFO L480 AbstractCegarLoop]: Abstraction has 9252 states and 10537 transitions. [2018-09-19 12:55:12,986 INFO L481 AbstractCegarLoop]: Interpolant automaton has 10 states. [2018-09-19 12:55:12,986 INFO L276 IsEmpty]: Start isEmpty. Operand 9252 states and 10537 transitions. [2018-09-19 12:55:12,992 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 316 [2018-09-19 12:55:12,993 INFO L368 BasicCegarLoop]: Found error trace [2018-09-19 12:55:12,993 INFO L376 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-19 12:55:12,993 INFO L423 AbstractCegarLoop]: === Iteration 8 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-19 12:55:12,994 INFO L82 PathProgramCache]: Analyzing trace with hash -1682335328, now seen corresponding path program 1 times [2018-09-19 12:55:12,994 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-19 12:55:12,994 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 316 with the following transitions: [2018-09-19 12:55:12,994 INFO L202 CegarAbsIntRunner]: [0], [1], [2628], [2635], [2643], [2651], [2659], [2667], [2675], [2683], [2691], [2699], [2707], [2715], [2723], [2731], [2739], [2747], [2755], [2763], [2771], [2779], [2787], [2795], [2803], [2811], [2819], [2827], [2835], [2843], [2851], [2859], [2863], [2865], [2868], [2876], [2884], [2892], [2900], [2908], [2916], [2924], [2932], [2940], [2948], [2956], [2964], [2972], [2980], [2988], [2996], [3004], [3012], [3020], [3028], [3036], [3044], [3052], [3060], [3068], [3076], [3084], [3092], [3100], [3108], [3116], [3121], [3125], [3129], [3133], [3137], [3148], [3152], [3156], [3159], [3160], [3164], [3168], [3179], [3183], [3187], [3191], [3195], [3199], [3203], [3207], [3218], [3222], [3226], [3230], [3234], [3237], [3238], [3242], [3246], [3250], [3254], [3258], [3262], [3265], [4238], [4242], [4246], [4252], [4256], [4258], [4269], [4270], [4271], [4273], [4274] [2018-09-19 12:55:12,998 INFO L148 AbstractInterpreter]: Using domain CompoundDomain [CongruenceDomain, IntervalDomain] [2018-09-19 12:55:12,998 INFO L101 FixpointEngine]: Starting fixpoint engine with domain CompoundDomain (maxUnwinding=3, maxParallelStates=1) [2018-09-19 12:55:13,166 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-09-19 12:55:14,545 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-19 12:55:14,545 INFO L272 AbstractInterpreter]: Visited 110 different actions 647 times. Merged at 8 different actions 42 times. Widened at 1 different actions 1 times. Found 10 fixpoints after 1 different actions. Largest state had 26 variables. [2018-09-19 12:55:14,592 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-19 12:55:15,167 INFO L232 lantSequenceWeakener]: Weakened 312 states. On average, predicates are now at 71.09% of their original sizes. [2018-09-19 12:55:15,167 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-19 12:55:15,270 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-19 12:55:15,270 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-19 12:55:15,270 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2018-09-19 12:55:15,270 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-19 12:55:15,271 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2018-09-19 12:55:15,271 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2018-09-19 12:55:15,271 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2018-09-19 12:55:15,271 INFO L87 Difference]: Start difference. First operand 9252 states and 10537 transitions. Second operand 10 states. [2018-09-19 12:55:35,601 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-19 12:55:35,601 INFO L93 Difference]: Finished difference Result 15294 states and 18522 transitions. [2018-09-19 12:55:35,601 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2018-09-19 12:55:35,602 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 315 [2018-09-19 12:55:35,603 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-19 12:55:35,626 INFO L225 Difference]: With dead ends: 15294 [2018-09-19 12:55:35,626 INFO L226 Difference]: Without dead ends: 10085 [2018-09-19 12:55:35,638 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 321 GetRequests, 306 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 33 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=68, Invalid=204, Unknown=0, NotChecked=0, Total=272 [2018-09-19 12:55:35,648 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10085 states. [2018-09-19 12:55:35,775 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10085 to 10061. [2018-09-19 12:55:35,775 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10061 states. [2018-09-19 12:55:35,789 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10061 states to 10061 states and 11413 transitions. [2018-09-19 12:55:35,790 INFO L78 Accepts]: Start accepts. Automaton has 10061 states and 11413 transitions. Word has length 315 [2018-09-19 12:55:35,792 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-19 12:55:35,792 INFO L480 AbstractCegarLoop]: Abstraction has 10061 states and 11413 transitions. [2018-09-19 12:55:35,792 INFO L481 AbstractCegarLoop]: Interpolant automaton has 10 states. [2018-09-19 12:55:35,792 INFO L276 IsEmpty]: Start isEmpty. Operand 10061 states and 11413 transitions. [2018-09-19 12:55:35,799 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 326 [2018-09-19 12:55:35,799 INFO L368 BasicCegarLoop]: Found error trace [2018-09-19 12:55:35,800 INFO L376 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-19 12:55:35,800 INFO L423 AbstractCegarLoop]: === Iteration 9 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-19 12:55:35,800 INFO L82 PathProgramCache]: Analyzing trace with hash -101884980, now seen corresponding path program 1 times [2018-09-19 12:55:35,801 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-19 12:55:35,801 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 326 with the following transitions: [2018-09-19 12:55:35,801 INFO L202 CegarAbsIntRunner]: [0], [1], [2628], [2635], [2643], [2651], [2659], [2667], [2675], [2683], [2691], [2699], [2707], [2715], [2723], [2731], [2739], [2747], [2755], [2763], [2771], [2779], [2787], [2795], [2803], [2811], [2819], [2827], [2835], [2843], [2851], [2859], [2863], [2865], [2868], [2876], [2884], [2892], [2900], [2908], [2916], [2924], [2932], [2940], [2948], [2956], [2964], [2972], [2980], [2988], [2996], [3004], [3012], [3020], [3028], [3036], [3044], [3052], [3060], [3068], [3076], [3084], [3092], [3100], [3108], [3116], [3121], [3125], [3129], [3133], [3137], [3148], [3151], [3152], [3156], [3160], [3164], [3168], [3179], [3183], [3187], [3191], [3195], [3199], [3203], [3207], [3218], [3222], [3226], [3230], [3234], [3238], [3242], [3246], [3250], [3254], [3258], [3262], [3265], [3266], [3270], [3274], [3278], [3282], [3285], [4238], [4242], [4246], [4252], [4256], [4258], [4269], [4270], [4271], [4273], [4274] [2018-09-19 12:55:35,804 INFO L148 AbstractInterpreter]: Using domain CompoundDomain [CongruenceDomain, IntervalDomain] [2018-09-19 12:55:35,804 INFO L101 FixpointEngine]: Starting fixpoint engine with domain CompoundDomain (maxUnwinding=3, maxParallelStates=1) [2018-09-19 12:55:35,971 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-09-19 12:55:36,381 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-19 12:55:36,381 INFO L272 AbstractInterpreter]: Visited 115 different actions 675 times. Merged at 8 different actions 40 times. Widened at 1 different actions 1 times. Found 9 fixpoints after 1 different actions. Largest state had 26 variables. [2018-09-19 12:55:36,387 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-19 12:55:36,830 INFO L232 lantSequenceWeakener]: Weakened 322 states. On average, predicates are now at 71.08% of their original sizes. [2018-09-19 12:55:36,830 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-19 12:55:36,941 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-19 12:55:36,942 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-19 12:55:36,942 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2018-09-19 12:55:36,942 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-19 12:55:36,942 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2018-09-19 12:55:36,943 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2018-09-19 12:55:36,943 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2018-09-19 12:55:36,943 INFO L87 Difference]: Start difference. First operand 10061 states and 11413 transitions. Second operand 10 states. [2018-09-19 12:55:53,920 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-19 12:55:53,921 INFO L93 Difference]: Finished difference Result 17756 states and 21202 transitions. [2018-09-19 12:55:53,921 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2018-09-19 12:55:53,921 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 325 [2018-09-19 12:55:53,923 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-19 12:55:53,947 INFO L225 Difference]: With dead ends: 17756 [2018-09-19 12:55:53,947 INFO L226 Difference]: Without dead ends: 11734 [2018-09-19 12:55:53,961 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 332 GetRequests, 316 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 41 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=74, Invalid=232, Unknown=0, NotChecked=0, Total=306 [2018-09-19 12:55:53,973 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11734 states. [2018-09-19 12:55:54,132 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11734 to 11704. [2018-09-19 12:55:54,133 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11704 states. [2018-09-19 12:55:54,149 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11704 states to 11704 states and 13240 transitions. [2018-09-19 12:55:54,150 INFO L78 Accepts]: Start accepts. Automaton has 11704 states and 13240 transitions. Word has length 325 [2018-09-19 12:55:54,150 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-19 12:55:54,150 INFO L480 AbstractCegarLoop]: Abstraction has 11704 states and 13240 transitions. [2018-09-19 12:55:54,150 INFO L481 AbstractCegarLoop]: Interpolant automaton has 10 states. [2018-09-19 12:55:54,151 INFO L276 IsEmpty]: Start isEmpty. Operand 11704 states and 13240 transitions. [2018-09-19 12:55:54,158 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 341 [2018-09-19 12:55:54,158 INFO L368 BasicCegarLoop]: Found error trace [2018-09-19 12:55:54,158 INFO L376 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-19 12:55:54,158 INFO L423 AbstractCegarLoop]: === Iteration 10 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-19 12:55:54,159 INFO L82 PathProgramCache]: Analyzing trace with hash 2085339579, now seen corresponding path program 1 times [2018-09-19 12:55:54,159 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-19 12:55:54,159 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 341 with the following transitions: [2018-09-19 12:55:54,159 INFO L202 CegarAbsIntRunner]: [0], [1], [2628], [2635], [2643], [2651], [2659], [2667], [2675], [2683], [2691], [2699], [2707], [2715], [2723], [2731], [2739], [2747], [2755], [2763], [2771], [2779], [2787], [2795], [2803], [2811], [2819], [2827], [2835], [2843], [2851], [2859], [2863], [2865], [2868], [2876], [2884], [2892], [2900], [2908], [2916], [2924], [2932], [2940], [2948], [2956], [2964], [2972], [2980], [2988], [2996], [3004], [3012], [3020], [3028], [3036], [3044], [3052], [3060], [3068], [3076], [3084], [3092], [3100], [3108], [3116], [3121], [3125], [3129], [3133], [3137], [3148], [3152], [3156], [3160], [3164], [3168], [3179], [3183], [3187], [3191], [3195], [3199], [3203], [3207], [3210], [3213], [3217], [3218], [3222], [3226], [3230], [3234], [3238], [3242], [3246], [3250], [3254], [3258], [3262], [3265], [3266], [3270], [3274], [3278], [3282], [3285], [4238], [4242], [4246], [4252], [4256], [4258], [4269], [4270], [4271], [4273], [4274] [2018-09-19 12:55:54,162 INFO L148 AbstractInterpreter]: Using domain CompoundDomain [CongruenceDomain, IntervalDomain] [2018-09-19 12:55:54,162 INFO L101 FixpointEngine]: Starting fixpoint engine with domain CompoundDomain (maxUnwinding=3, maxParallelStates=1) [2018-09-19 12:55:54,301 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-09-19 12:55:54,635 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-19 12:55:54,635 INFO L272 AbstractInterpreter]: Visited 117 different actions 679 times. Merged at 8 different actions 40 times. Widened at 1 different actions 1 times. Found 8 fixpoints after 2 different actions. Largest state had 26 variables. [2018-09-19 12:55:54,671 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-19 12:55:55,384 INFO L232 lantSequenceWeakener]: Weakened 337 states. On average, predicates are now at 71.13% of their original sizes. [2018-09-19 12:55:55,385 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-19 12:55:55,559 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-19 12:55:55,559 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-19 12:55:55,560 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2018-09-19 12:55:55,560 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-19 12:55:55,560 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2018-09-19 12:55:55,560 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2018-09-19 12:55:55,560 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=102, Unknown=0, NotChecked=0, Total=132 [2018-09-19 12:55:55,561 INFO L87 Difference]: Start difference. First operand 11704 states and 13240 transitions. Second operand 12 states. [2018-09-19 12:56:34,184 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-19 12:56:34,184 INFO L93 Difference]: Finished difference Result 22751 states and 29077 transitions. [2018-09-19 12:56:34,185 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2018-09-19 12:56:34,185 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 340 [2018-09-19 12:56:34,186 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-19 12:56:34,215 INFO L225 Difference]: With dead ends: 22751 [2018-09-19 12:56:34,215 INFO L226 Difference]: Without dead ends: 15901 [2018-09-19 12:56:34,230 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 365 GetRequests, 329 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 348 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=220, Invalid=1186, Unknown=0, NotChecked=0, Total=1406 [2018-09-19 12:56:34,242 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15901 states. [2018-09-19 12:56:34,428 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15901 to 15812. [2018-09-19 12:56:34,429 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15812 states. [2018-09-19 12:56:34,452 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15812 states to 15812 states and 18058 transitions. [2018-09-19 12:56:34,453 INFO L78 Accepts]: Start accepts. Automaton has 15812 states and 18058 transitions. Word has length 340 [2018-09-19 12:56:34,454 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-19 12:56:34,454 INFO L480 AbstractCegarLoop]: Abstraction has 15812 states and 18058 transitions. [2018-09-19 12:56:34,454 INFO L481 AbstractCegarLoop]: Interpolant automaton has 12 states. [2018-09-19 12:56:34,454 INFO L276 IsEmpty]: Start isEmpty. Operand 15812 states and 18058 transitions. [2018-09-19 12:56:34,462 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 344 [2018-09-19 12:56:34,462 INFO L368 BasicCegarLoop]: Found error trace [2018-09-19 12:56:34,463 INFO L376 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-19 12:56:34,463 INFO L423 AbstractCegarLoop]: === Iteration 11 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-19 12:56:34,463 INFO L82 PathProgramCache]: Analyzing trace with hash -1749272920, now seen corresponding path program 1 times [2018-09-19 12:56:34,464 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-19 12:56:34,464 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 344 with the following transitions: [2018-09-19 12:56:34,464 INFO L202 CegarAbsIntRunner]: [0], [1], [2628], [2635], [2643], [2651], [2659], [2667], [2675], [2683], [2691], [2699], [2707], [2715], [2723], [2731], [2739], [2747], [2755], [2763], [2771], [2779], [2787], [2795], [2803], [2811], [2819], [2827], [2835], [2843], [2851], [2859], [2863], [2865], [2868], [2876], [2884], [2892], [2900], [2908], [2916], [2924], [2932], [2940], [2948], [2956], [2964], [2972], [2980], [2988], [2996], [3004], [3012], [3020], [3028], [3036], [3044], [3052], [3060], [3068], [3076], [3084], [3092], [3100], [3108], [3116], [3121], [3125], [3129], [3133], [3137], [3148], [3152], [3156], [3160], [3164], [3168], [3179], [3183], [3187], [3191], [3195], [3199], [3203], [3207], [3218], [3222], [3226], [3230], [3234], [3237], [3238], [3242], [3246], [3250], [3254], [3258], [3262], [3265], [3266], [3270], [3274], [3278], [3282], [3285], [4238], [4242], [4246], [4252], [4256], [4258], [4269], [4270], [4271], [4273], [4274] [2018-09-19 12:56:34,466 INFO L148 AbstractInterpreter]: Using domain CompoundDomain [CongruenceDomain, IntervalDomain] [2018-09-19 12:56:34,467 INFO L101 FixpointEngine]: Starting fixpoint engine with domain CompoundDomain (maxUnwinding=3, maxParallelStates=1) [2018-09-19 12:56:34,597 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-09-19 12:56:34,917 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-19 12:56:34,917 INFO L272 AbstractInterpreter]: Visited 115 different actions 680 times. Merged at 8 different actions 45 times. Widened at 1 different actions 1 times. Found 11 fixpoints after 2 different actions. Largest state had 26 variables. [2018-09-19 12:56:34,967 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-19 12:56:35,472 INFO L232 lantSequenceWeakener]: Weakened 340 states. On average, predicates are now at 71.07% of their original sizes. [2018-09-19 12:56:35,473 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-19 12:56:35,696 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-19 12:56:35,697 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-19 12:56:35,697 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2018-09-19 12:56:35,697 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-19 12:56:35,697 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2018-09-19 12:56:35,697 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2018-09-19 12:56:35,698 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2018-09-19 12:56:35,698 INFO L87 Difference]: Start difference. First operand 15812 states and 18058 transitions. Second operand 10 states. Received shutdown request... [2018-09-19 12:56:47,566 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2018-09-19 12:56:47,566 WARN L549 AbstractCegarLoop]: Verification canceled [2018-09-19 12:56:47,571 WARN L206 ceAbstractionStarter]: Timeout [2018-09-19 12:56:47,571 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.09 12:56:47 BoogieIcfgContainer [2018-09-19 12:56:47,571 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-09-19 12:56:47,572 INFO L168 Benchmark]: Toolchain (without parser) took 242016.98 ms. Allocated memory was 1.5 GB in the beginning and 4.0 GB in the end (delta: 2.4 GB). Free memory was 1.4 GB in the beginning and 3.2 GB in the end (delta: -1.8 GB). Peak memory consumption was 635.8 MB. Max. memory is 7.1 GB. [2018-09-19 12:56:47,574 INFO L168 Benchmark]: CDTParser took 0.24 ms. Allocated memory is still 1.5 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-09-19 12:56:47,574 INFO L168 Benchmark]: CACSL2BoogieTranslator took 2884.72 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.1 GB in the end (delta: 339.3 MB). Peak memory consumption was 339.3 MB. Max. memory is 7.1 GB. [2018-09-19 12:56:47,575 INFO L168 Benchmark]: Boogie Procedure Inliner took 351.45 ms. Allocated memory is still 1.5 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 42.3 MB). Peak memory consumption was 42.3 MB. Max. memory is 7.1 GB. [2018-09-19 12:56:47,576 INFO L168 Benchmark]: Boogie Preprocessor took 1357.09 ms. Allocated memory was 1.5 GB in the beginning and 2.5 GB in the end (delta: 988.3 MB). Free memory was 1.0 GB in the beginning and 2.3 GB in the end (delta: -1.3 GB). Peak memory consumption was 174.3 MB. Max. memory is 7.1 GB. [2018-09-19 12:56:47,577 INFO L168 Benchmark]: RCFGBuilder took 10483.93 ms. Allocated memory was 2.5 GB in the beginning and 2.7 GB in the end (delta: 155.7 MB). Free memory was 2.3 GB in the beginning and 2.3 GB in the end (delta: 18.6 MB). Peak memory consumption was 734.6 MB. Max. memory is 7.1 GB. [2018-09-19 12:56:47,578 INFO L168 Benchmark]: TraceAbstraction took 226930.77 ms. Allocated memory was 2.7 GB in the beginning and 4.0 GB in the end (delta: 1.3 GB). Free memory was 2.3 GB in the beginning and 3.2 GB in the end (delta: -905.1 MB). Peak memory consumption was 395.1 MB. Max. memory is 7.1 GB. [2018-09-19 12:56:47,584 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.24 ms. Allocated memory is still 1.5 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 2884.72 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.1 GB in the end (delta: 339.3 MB). Peak memory consumption was 339.3 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 351.45 ms. Allocated memory is still 1.5 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 42.3 MB). Peak memory consumption was 42.3 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 1357.09 ms. Allocated memory was 1.5 GB in the beginning and 2.5 GB in the end (delta: 988.3 MB). Free memory was 1.0 GB in the beginning and 2.3 GB in the end (delta: -1.3 GB). Peak memory consumption was 174.3 MB. Max. memory is 7.1 GB. * RCFGBuilder took 10483.93 ms. Allocated memory was 2.5 GB in the beginning and 2.7 GB in the end (delta: 155.7 MB). Free memory was 2.3 GB in the beginning and 2.3 GB in the end (delta: 18.6 MB). Peak memory consumption was 734.6 MB. Max. memory is 7.1 GB. * TraceAbstraction took 226930.77 ms. Allocated memory was 2.7 GB in the beginning and 4.0 GB in the end (delta: 1.3 GB). Free memory was 2.3 GB in the beginning and 3.2 GB in the end (delta: -905.1 MB). Peak memory consumption was 395.1 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResultAtElement [Line: 117]: Timeout (TraceAbstraction) Unable to prove that call of __VERIFIER_error() unreachable (line 117). Cancelled while BasicCegarLoop was constructing difference of abstraction (15812states) and FLOYD_HOARE automaton (currently 17 states, 10 states before enhancement), while ReachableStatesComputation was computing reachable states (13729 states constructedinput type IntersectNwa). - StatisticsResult: Ultimate Automizer benchmark data CFG has 7 procedures, 1120 locations, 1 error locations. TIMEOUT Result, 226.8s OverallTime, 11 OverallIterations, 4 TraceHistogramMax, 210.4s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 12857 SDtfs, 29581 SDslu, 10707 SDs, 0 SdLazy, 133718 SolverSat, 9728 SolverUnsat, 1 SolverUnknown, 0 SolverNotchecked, 181.6s Time, PredicateUnifierStatistics: 22 DeclaredPredicates, 2786 GetRequests, 2607 SyntacticMatches, 0 SemanticMatches, 179 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 678 ImplicationChecksByTransitivity, 4.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=15812occurred in iteration=10, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 6.9s AbstIntTime, 11 AbstIntIterations, 11 AbstIntStrong, 0.9972907753327213 AbsIntWeakeningRatio, 0.10917192721871519 AbsIntAvgWeakeningVarsNumRemoved, 23.30152246565169 AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 1.3s AutomataMinimizationTime, 10 MinimizatonAttempts, 222 StatesRemovedByMinimization, 10 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/Problem13_label33_true-unreach-call.c_svcomp-Reach-64bit-ToothlessTaipan_INTCON-OldIcfg.epf_AutomizerCInline.xml/Csv-Benchmark-0-2018-09-19_12-56-47-603.csv Written .csv to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/csv/Problem13_label33_true-unreach-call.c_svcomp-Reach-64bit-ToothlessTaipan_INTCON-OldIcfg.epf_AutomizerCInline.xml/Csv-TraceAbstractionBenchmarks-0-2018-09-19_12-56-47-603.csv Completed graceful shutdown