java -Xmx8000000000 -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data --generate-csv --csv-dir csv -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -s ../../../trunk/examples/settings/ai/taipanbench/svcomp-Reach-64bit-ToothlessTaipan_OCT-OldIcfg.epf -i ../../../trunk/examples/svcomp/eca-rers2012/Problem13_label15_true-unreach-call.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-69f5bdd-m [2018-09-19 10:30:48,618 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-09-19 10:30:48,620 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-09-19 10:30:48,632 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-09-19 10:30:48,633 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-09-19 10:30:48,634 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-09-19 10:30:48,635 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-09-19 10:30:48,637 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-09-19 10:30:48,639 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-09-19 10:30:48,640 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-09-19 10:30:48,641 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-09-19 10:30:48,641 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-09-19 10:30:48,642 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-09-19 10:30:48,643 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-09-19 10:30:48,644 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-09-19 10:30:48,644 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-09-19 10:30:48,645 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-09-19 10:30:48,647 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-09-19 10:30:48,649 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-09-19 10:30:48,651 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-09-19 10:30:48,652 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-09-19 10:30:48,653 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-09-19 10:30:48,656 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-09-19 10:30:48,656 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-09-19 10:30:48,656 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-09-19 10:30:48,657 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-09-19 10:30:48,658 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-09-19 10:30:48,659 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-09-19 10:30:48,660 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-09-19 10:30:48,661 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-09-19 10:30:48,661 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-09-19 10:30:48,662 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-09-19 10:30:48,662 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-09-19 10:30:48,662 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-09-19 10:30:48,663 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-09-19 10:30:48,664 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-09-19 10:30:48,664 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/ai/taipanbench/svcomp-Reach-64bit-ToothlessTaipan_OCT-OldIcfg.epf [2018-09-19 10:30:48,686 INFO L110 SettingsManager]: Loading preferences was successful [2018-09-19 10:30:48,686 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-09-19 10:30:48,687 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-09-19 10:30:48,687 INFO L133 SettingsManager]: * User list type=DISABLED [2018-09-19 10:30:48,688 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-09-19 10:30:48,688 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-09-19 10:30:48,688 INFO L133 SettingsManager]: * Congruence Domain=false [2018-09-19 10:30:48,688 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-09-19 10:30:48,688 INFO L133 SettingsManager]: * Abstract domain=OctagonDomain [2018-09-19 10:30:48,688 INFO L133 SettingsManager]: * Log string format=TERM [2018-09-19 10:30:48,689 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-09-19 10:30:48,689 INFO L133 SettingsManager]: * Parallel states before merging=1 [2018-09-19 10:30:48,689 INFO L133 SettingsManager]: * Interval Domain=false [2018-09-19 10:30:48,691 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-09-19 10:30:48,691 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-09-19 10:30:48,691 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-09-19 10:30:48,691 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-09-19 10:30:48,691 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-09-19 10:30:48,691 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-09-19 10:30:48,692 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-09-19 10:30:48,692 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-09-19 10:30:48,692 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-09-19 10:30:48,692 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-09-19 10:30:48,694 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-09-19 10:30:48,694 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-09-19 10:30:48,695 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-09-19 10:30:48,695 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-09-19 10:30:48,695 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-09-19 10:30:48,695 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-09-19 10:30:48,695 INFO L133 SettingsManager]: * Trace refinement strategy=TOOTHLESS_TAIPAN [2018-09-19 10:30:48,696 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-09-19 10:30:48,696 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-09-19 10:30:48,696 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-09-19 10:30:48,696 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-09-19 10:30:48,696 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-09-19 10:30:48,741 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-09-19 10:30:48,754 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-09-19 10:30:48,758 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-09-19 10:30:48,760 INFO L271 PluginConnector]: Initializing CDTParser... [2018-09-19 10:30:48,760 INFO L276 PluginConnector]: CDTParser initialized [2018-09-19 10:30:48,761 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem13_label15_true-unreach-call.c [2018-09-19 10:30:49,123 INFO L221 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/55c0166cc/3bf7ebaf5dbc4d0d928aaa7b11c3a5a0/FLAG6d5e9333e [2018-09-19 10:30:49,636 INFO L277 CDTParser]: Found 1 translation units. [2018-09-19 10:30:49,637 INFO L159 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem13_label15_true-unreach-call.c [2018-09-19 10:30:49,670 INFO L325 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/55c0166cc/3bf7ebaf5dbc4d0d928aaa7b11c3a5a0/FLAG6d5e9333e [2018-09-19 10:30:49,687 INFO L333 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/55c0166cc/3bf7ebaf5dbc4d0d928aaa7b11c3a5a0 [2018-09-19 10:30:49,698 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-09-19 10:30:49,702 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-09-19 10:30:49,703 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-09-19 10:30:49,703 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-09-19 10:30:49,711 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-09-19 10:30:49,712 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.09 10:30:49" (1/1) ... [2018-09-19 10:30:49,716 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@68a2763a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 10:30:49, skipping insertion in model container [2018-09-19 10:30:49,716 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.09 10:30:49" (1/1) ... [2018-09-19 10:30:49,729 INFO L160 ieTranslatorObserver]: Starting translation in SV-COMP mode [2018-09-19 10:30:51,186 INFO L170 PostProcessor]: Settings: Checked method=main [2018-09-19 10:30:51,207 INFO L424 MainDispatcher]: Starting main dispatcher in SV-COMP mode [2018-09-19 10:30:52,019 INFO L170 PostProcessor]: Settings: Checked method=main [2018-09-19 10:30:52,402 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 10:30:52 WrapperNode [2018-09-19 10:30:52,402 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-09-19 10:30:52,404 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-09-19 10:30:52,404 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-09-19 10:30:52,404 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-09-19 10:30:52,416 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 10:30:52" (1/1) ... [2018-09-19 10:30:52,563 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 10:30:52" (1/1) ... [2018-09-19 10:30:52,733 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-09-19 10:30:52,733 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-09-19 10:30:52,734 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-09-19 10:30:52,734 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-09-19 10:30:53,654 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 10:30:52" (1/1) ... [2018-09-19 10:30:53,655 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 10:30:52" (1/1) ... [2018-09-19 10:30:53,715 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 10:30:52" (1/1) ... [2018-09-19 10:30:53,715 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 10:30:52" (1/1) ... [2018-09-19 10:30:53,920 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 10:30:52" (1/1) ... [2018-09-19 10:30:53,960 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 10:30:52" (1/1) ... [2018-09-19 10:30:54,033 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 10:30:52" (1/1) ... [2018-09-19 10:30:54,107 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-09-19 10:30:54,107 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-09-19 10:30:54,107 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-09-19 10:30:54,108 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-09-19 10:30:54,109 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 10:30:52" (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 10:30:54,184 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-09-19 10:30:54,184 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-09-19 10:30:54,184 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output4 [2018-09-19 10:30:54,185 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output4 [2018-09-19 10:30:54,185 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output3 [2018-09-19 10:30:54,185 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output3 [2018-09-19 10:30:54,185 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output2 [2018-09-19 10:30:54,185 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output2 [2018-09-19 10:30:54,186 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2018-09-19 10:30:54,186 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2018-09-19 10:30:54,186 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-09-19 10:30:54,186 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-09-19 10:30:54,187 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-09-19 10:30:54,187 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-09-19 10:31:05,331 INFO L356 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-09-19 10:31:05,332 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.09 10:31:05 BoogieIcfgContainer [2018-09-19 10:31:05,332 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-09-19 10:31:05,333 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-09-19 10:31:05,333 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-09-19 10:31:05,337 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-09-19 10:31:05,338 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.09 10:30:49" (1/3) ... [2018-09-19 10:31:05,338 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@e2ecf10 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.09 10:31:05, skipping insertion in model container [2018-09-19 10:31:05,339 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 10:30:52" (2/3) ... [2018-09-19 10:31:05,339 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@e2ecf10 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.09 10:31:05, skipping insertion in model container [2018-09-19 10:31:05,339 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.09 10:31:05" (3/3) ... [2018-09-19 10:31:05,341 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem13_label15_true-unreach-call.c [2018-09-19 10:31:05,352 INFO L137 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-09-19 10:31:05,364 INFO L149 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-09-19 10:31:05,433 INFO L130 ementStrategyFactory]: Using default assertion order modulation [2018-09-19 10:31:05,434 INFO L381 AbstractCegarLoop]: Interprodecural is true [2018-09-19 10:31:05,434 INFO L382 AbstractCegarLoop]: Hoare is true [2018-09-19 10:31:05,434 INFO L383 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-09-19 10:31:05,434 INFO L384 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-09-19 10:31:05,434 INFO L385 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-09-19 10:31:05,434 INFO L386 AbstractCegarLoop]: Difference is false [2018-09-19 10:31:05,435 INFO L387 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-09-19 10:31:05,435 INFO L392 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-09-19 10:31:05,475 INFO L276 IsEmpty]: Start isEmpty. Operand 1120 states. [2018-09-19 10:31:05,483 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2018-09-19 10:31:05,484 INFO L368 BasicCegarLoop]: Found error trace [2018-09-19 10:31:05,485 INFO L376 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-19 10:31:05,486 INFO L423 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-19 10:31:05,491 INFO L82 PathProgramCache]: Analyzing trace with hash 801605187, now seen corresponding path program 1 times [2018-09-19 10:31:05,494 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-19 10:31:05,495 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 44 with the following transitions: [2018-09-19 10:31:05,498 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], [2867], [2871], [2873], [4242], [4246], [4252], [4256], [4269], [4270], [4271], [4273] [2018-09-19 10:31:05,564 INFO L148 AbstractInterpreter]: Using domain OctagonDomain [2018-09-19 10:31:05,564 INFO L101 FixpointEngine]: Starting fixpoint engine with domain OctagonDomain (maxUnwinding=3, maxParallelStates=1) [2018-09-19 10:31:06,945 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-19 10:31:06,947 INFO L272 AbstractInterpreter]: Visited 42 different actions 42 times. Never merged. Never widened. Never found a fixpoint. Largest state had 25 variables. [2018-09-19 10:31:06,956 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-19 10:31:07,583 INFO L232 lantSequenceWeakener]: Weakened 41 states. On average, predicates are now at 73% of their original sizes. [2018-09-19 10:31:07,584 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-19 10:31:07,930 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-19 10:31:07,932 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-19 10:31:07,932 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-09-19 10:31:07,932 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-19 10:31:07,938 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-09-19 10:31:07,945 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-09-19 10:31:07,946 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2018-09-19 10:31:07,949 INFO L87 Difference]: Start difference. First operand 1120 states. Second operand 6 states. [2018-09-19 10:31:38,164 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-19 10:31:38,164 INFO L93 Difference]: Finished difference Result 3044 states and 5648 transitions. [2018-09-19 10:31:38,165 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-09-19 10:31:38,166 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 43 [2018-09-19 10:31:38,167 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-19 10:31:38,202 INFO L225 Difference]: With dead ends: 3044 [2018-09-19 10:31:38,203 INFO L226 Difference]: Without dead ends: 1922 [2018-09-19 10:31:38,214 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 42 GetRequests, 38 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2018-09-19 10:31:38,237 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1922 states. [2018-09-19 10:31:38,374 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1922 to 1920. [2018-09-19 10:31:38,376 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1920 states. [2018-09-19 10:31:38,386 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1920 states to 1920 states and 2831 transitions. [2018-09-19 10:31:38,389 INFO L78 Accepts]: Start accepts. Automaton has 1920 states and 2831 transitions. Word has length 43 [2018-09-19 10:31:38,390 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-19 10:31:38,390 INFO L480 AbstractCegarLoop]: Abstraction has 1920 states and 2831 transitions. [2018-09-19 10:31:38,390 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-09-19 10:31:38,391 INFO L276 IsEmpty]: Start isEmpty. Operand 1920 states and 2831 transitions. [2018-09-19 10:31:38,400 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 145 [2018-09-19 10:31:38,400 INFO L368 BasicCegarLoop]: Found error trace [2018-09-19 10:31:38,400 INFO L376 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-19 10:31:38,403 INFO L423 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-19 10:31:38,403 INFO L82 PathProgramCache]: Analyzing trace with hash 1896342960, now seen corresponding path program 1 times [2018-09-19 10:31:38,403 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-19 10:31:38,404 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 145 with the following transitions: [2018-09-19 10:31:38,404 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], [2867], [2871], [2873], [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 10:31:38,417 INFO L148 AbstractInterpreter]: Using domain OctagonDomain [2018-09-19 10:31:38,417 INFO L101 FixpointEngine]: Starting fixpoint engine with domain OctagonDomain (maxUnwinding=3, maxParallelStates=1) [2018-09-19 10:31:51,413 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-19 10:31:51,414 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 10:31:51,423 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-19 10:31:52,744 INFO L232 lantSequenceWeakener]: Weakened 142 states. On average, predicates are now at 71.52% of their original sizes. [2018-09-19 10:31:52,745 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-19 10:31:53,608 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-19 10:31:53,608 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-19 10:31:53,608 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2018-09-19 10:31:53,609 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-19 10:31:53,610 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2018-09-19 10:31:53,610 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2018-09-19 10:31:53,610 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2018-09-19 10:31:53,611 INFO L87 Difference]: Start difference. First operand 1920 states and 2831 transitions. Second operand 10 states. [2018-09-19 10:32:33,756 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-19 10:32:33,756 INFO L93 Difference]: Finished difference Result 3841 states and 6447 transitions. [2018-09-19 10:32:33,759 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2018-09-19 10:32:33,759 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 144 [2018-09-19 10:32:33,761 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-19 10:32:33,775 INFO L225 Difference]: With dead ends: 3841 [2018-09-19 10:32:33,775 INFO L226 Difference]: Without dead ends: 2731 [2018-09-19 10:32:33,780 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 150 GetRequests, 135 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 33 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=68, Invalid=204, Unknown=0, NotChecked=0, Total=272 [2018-09-19 10:32:33,783 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2731 states. [2018-09-19 10:32:33,846 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2731 to 2726. [2018-09-19 10:32:33,847 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2726 states. [2018-09-19 10:32:33,857 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2726 states to 2726 states and 3662 transitions. [2018-09-19 10:32:33,857 INFO L78 Accepts]: Start accepts. Automaton has 2726 states and 3662 transitions. Word has length 144 [2018-09-19 10:32:33,858 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-19 10:32:33,858 INFO L480 AbstractCegarLoop]: Abstraction has 2726 states and 3662 transitions. [2018-09-19 10:32:33,858 INFO L481 AbstractCegarLoop]: Interpolant automaton has 10 states. [2018-09-19 10:32:33,859 INFO L276 IsEmpty]: Start isEmpty. Operand 2726 states and 3662 transitions. [2018-09-19 10:32:33,862 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 174 [2018-09-19 10:32:33,862 INFO L368 BasicCegarLoop]: Found error trace [2018-09-19 10:32:33,863 INFO L376 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-19 10:32:33,863 INFO L423 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-19 10:32:33,863 INFO L82 PathProgramCache]: Analyzing trace with hash 1871622181, now seen corresponding path program 1 times [2018-09-19 10:32:33,864 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-19 10:32:33,864 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 174 with the following transitions: [2018-09-19 10:32:33,864 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], [2867], [2871], [2873], [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 10:32:33,870 INFO L148 AbstractInterpreter]: Using domain OctagonDomain [2018-09-19 10:32:33,870 INFO L101 FixpointEngine]: Starting fixpoint engine with domain OctagonDomain (maxUnwinding=3, maxParallelStates=1) [2018-09-19 10:32:43,834 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-09-19 10:32:48,582 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-19 10:32:48,582 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 10:32:48,623 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-19 10:32:50,088 INFO L232 lantSequenceWeakener]: Weakened 171 states. On average, predicates are now at 71.4% of their original sizes. [2018-09-19 10:32:50,089 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-19 10:32:51,218 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-19 10:32:51,219 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-19 10:32:51,219 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2018-09-19 10:32:51,219 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-19 10:32:51,220 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2018-09-19 10:32:51,220 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2018-09-19 10:32:51,221 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=98, Unknown=0, NotChecked=0, Total=132 [2018-09-19 10:32:51,221 INFO L87 Difference]: Start difference. First operand 2726 states and 3662 transitions. Second operand 12 states. [2018-09-19 10:33:35,387 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-19 10:33:35,387 INFO L93 Difference]: Finished difference Result 4973 states and 7924 transitions. [2018-09-19 10:33:35,393 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2018-09-19 10:33:35,394 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 173 [2018-09-19 10:33:35,395 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-19 10:33:35,417 INFO L225 Difference]: With dead ends: 4973 [2018-09-19 10:33:35,417 INFO L226 Difference]: Without dead ends: 3863 [2018-09-19 10:33:35,422 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 182 GetRequests, 162 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 76 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=108, Invalid=354, Unknown=0, NotChecked=0, Total=462 [2018-09-19 10:33:35,426 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3863 states. [2018-09-19 10:33:35,513 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3863 to 3540. [2018-09-19 10:33:35,514 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3540 states. [2018-09-19 10:33:35,523 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3540 states to 3540 states and 4496 transitions. [2018-09-19 10:33:35,524 INFO L78 Accepts]: Start accepts. Automaton has 3540 states and 4496 transitions. Word has length 173 [2018-09-19 10:33:35,524 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-19 10:33:35,525 INFO L480 AbstractCegarLoop]: Abstraction has 3540 states and 4496 transitions. [2018-09-19 10:33:35,525 INFO L481 AbstractCegarLoop]: Interpolant automaton has 12 states. [2018-09-19 10:33:35,525 INFO L276 IsEmpty]: Start isEmpty. Operand 3540 states and 4496 transitions. [2018-09-19 10:33:35,535 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 239 [2018-09-19 10:33:35,535 INFO L368 BasicCegarLoop]: Found error trace [2018-09-19 10:33:35,539 INFO L376 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-19 10:33:35,539 INFO L423 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-19 10:33:35,540 INFO L82 PathProgramCache]: Analyzing trace with hash 1945165379, now seen corresponding path program 1 times [2018-09-19 10:33:35,540 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-19 10:33:35,540 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 239 with the following transitions: [2018-09-19 10:33:35,540 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], [2867], [2871], [2873], [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 10:33:35,552 INFO L148 AbstractInterpreter]: Using domain OctagonDomain [2018-09-19 10:33:35,552 INFO L101 FixpointEngine]: Starting fixpoint engine with domain OctagonDomain (maxUnwinding=3, maxParallelStates=1) [2018-09-19 10:33:42,064 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-09-19 10:33:48,931 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-19 10:33:48,931 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 10:33:48,939 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-19 10:33:50,922 INFO L232 lantSequenceWeakener]: Weakened 236 states. On average, predicates are now at 71.28% of their original sizes. [2018-09-19 10:33:50,922 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-19 10:33:51,400 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-19 10:33:51,401 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-19 10:33:51,401 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2018-09-19 10:33:51,401 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-19 10:33:51,402 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2018-09-19 10:33:51,402 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2018-09-19 10:33:51,402 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2018-09-19 10:33:51,402 INFO L87 Difference]: Start difference. First operand 3540 states and 4496 transitions. Second operand 10 states. [2018-09-19 10:34:25,774 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-19 10:34:25,774 INFO L93 Difference]: Finished difference Result 6282 states and 8959 transitions. [2018-09-19 10:34:25,775 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2018-09-19 10:34:25,775 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 238 [2018-09-19 10:34:25,776 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-19 10:34:25,797 INFO L225 Difference]: With dead ends: 6282 [2018-09-19 10:34:25,797 INFO L226 Difference]: Without dead ends: 4358 [2018-09-19 10:34:25,804 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 244 GetRequests, 229 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 10:34:25,809 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4358 states. [2018-09-19 10:34:25,922 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4358 to 4347. [2018-09-19 10:34:25,923 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4347 states. [2018-09-19 10:34:25,944 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4347 states to 4347 states and 5342 transitions. [2018-09-19 10:34:25,945 INFO L78 Accepts]: Start accepts. Automaton has 4347 states and 5342 transitions. Word has length 238 [2018-09-19 10:34:25,946 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-19 10:34:25,947 INFO L480 AbstractCegarLoop]: Abstraction has 4347 states and 5342 transitions. [2018-09-19 10:34:25,947 INFO L481 AbstractCegarLoop]: Interpolant automaton has 10 states. [2018-09-19 10:34:25,947 INFO L276 IsEmpty]: Start isEmpty. Operand 4347 states and 5342 transitions. [2018-09-19 10:34:25,951 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 251 [2018-09-19 10:34:25,951 INFO L368 BasicCegarLoop]: Found error trace [2018-09-19 10:34:25,952 INFO L376 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-19 10:34:25,952 INFO L423 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-19 10:34:25,952 INFO L82 PathProgramCache]: Analyzing trace with hash 2049181019, now seen corresponding path program 1 times [2018-09-19 10:34:25,953 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-19 10:34:25,953 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 251 with the following transitions: [2018-09-19 10:34:25,953 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], [2867], [2871], [2873], [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 10:34:25,961 INFO L148 AbstractInterpreter]: Using domain OctagonDomain [2018-09-19 10:34:25,961 INFO L101 FixpointEngine]: Starting fixpoint engine with domain OctagonDomain (maxUnwinding=3, maxParallelStates=1) [2018-09-19 10:34:32,909 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-09-19 10:34:48,014 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-19 10:34:48,015 INFO L272 AbstractInterpreter]: Visited 114 different actions 663 times. Merged at 7 different actions 34 times. Widened at 1 different actions 1 times. Found 6 fixpoints after 1 different actions. Largest state had 26 variables. [2018-09-19 10:34:48,025 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-19 10:34:49,604 INFO L232 lantSequenceWeakener]: Weakened 248 states. On average, predicates are now at 71.26% of their original sizes. [2018-09-19 10:34:49,605 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-19 10:34:49,973 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-19 10:34:49,973 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-19 10:34:49,973 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2018-09-19 10:34:49,973 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-19 10:34:49,974 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2018-09-19 10:34:49,974 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2018-09-19 10:34:49,975 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2018-09-19 10:34:49,975 INFO L87 Difference]: Start difference. First operand 4347 states and 5342 transitions. Second operand 10 states. Received shutdown request... [2018-09-19 10:35:03,320 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2018-09-19 10:35:03,321 WARN L549 AbstractCegarLoop]: Verification canceled [2018-09-19 10:35:03,327 WARN L206 ceAbstractionStarter]: Timeout [2018-09-19 10:35:03,328 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.09 10:35:03 BoogieIcfgContainer [2018-09-19 10:35:03,328 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-09-19 10:35:03,329 INFO L168 Benchmark]: Toolchain (without parser) took 253629.74 ms. Allocated memory was 1.5 GB in the beginning and 4.2 GB in the end (delta: 2.7 GB). Free memory was 1.4 GB in the beginning and 3.2 GB in the end (delta: -1.9 GB). Peak memory consumption was 840.2 MB. Max. memory is 7.1 GB. [2018-09-19 10:35:03,330 INFO L168 Benchmark]: CDTParser took 0.21 ms. Allocated memory is still 1.5 GB. Free memory is still 1.4 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-09-19 10:35:03,331 INFO L168 Benchmark]: CACSL2BoogieTranslator took 2699.88 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.0 GB in the end (delta: 348.8 MB). Peak memory consumption was 348.8 MB. Max. memory is 7.1 GB. [2018-09-19 10:35:03,332 INFO L168 Benchmark]: Boogie Procedure Inliner took 329.56 ms. Allocated memory is still 1.5 GB. Free memory was 1.0 GB in the beginning and 992.1 MB in the end (delta: 42.5 MB). Peak memory consumption was 42.5 MB. Max. memory is 7.1 GB. [2018-09-19 10:35:03,333 INFO L168 Benchmark]: Boogie Preprocessor took 1373.44 ms. Allocated memory was 1.5 GB in the beginning and 2.5 GB in the end (delta: 960.5 MB). Free memory was 992.1 MB 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 10:35:03,334 INFO L168 Benchmark]: RCFGBuilder took 11225.09 ms. Allocated memory was 2.5 GB in the beginning and 2.7 GB in the end (delta: 217.1 MB). Free memory was 2.3 GB in the beginning and 2.4 GB in the end (delta: -102.0 MB). Peak memory consumption was 787.4 MB. Max. memory is 7.1 GB. [2018-09-19 10:35:03,335 INFO L168 Benchmark]: TraceAbstraction took 237994.94 ms. Allocated memory was 2.7 GB in the beginning and 4.2 GB in the end (delta: 1.5 GB). Free memory was 2.4 GB in the beginning and 3.2 GB in the end (delta: -868.5 MB). Peak memory consumption was 652.4 MB. Max. memory is 7.1 GB. [2018-09-19 10:35:03,341 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21 ms. Allocated memory is still 1.5 GB. Free memory is still 1.4 GB. There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 2699.88 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.0 GB in the end (delta: 348.8 MB). Peak memory consumption was 348.8 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 329.56 ms. Allocated memory is still 1.5 GB. Free memory was 1.0 GB in the beginning and 992.1 MB in the end (delta: 42.5 MB). Peak memory consumption was 42.5 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 1373.44 ms. Allocated memory was 1.5 GB in the beginning and 2.5 GB in the end (delta: 960.5 MB). Free memory was 992.1 MB 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 11225.09 ms. Allocated memory was 2.5 GB in the beginning and 2.7 GB in the end (delta: 217.1 MB). Free memory was 2.3 GB in the beginning and 2.4 GB in the end (delta: -102.0 MB). Peak memory consumption was 787.4 MB. Max. memory is 7.1 GB. * TraceAbstraction took 237994.94 ms. Allocated memory was 2.7 GB in the beginning and 4.2 GB in the end (delta: 1.5 GB). Free memory was 2.4 GB in the beginning and 3.2 GB in the end (delta: -868.5 MB). Peak memory consumption was 652.4 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResultAtElement [Line: 120]: Timeout (TraceAbstraction) Unable to prove that call of __VERIFIER_error() unreachable (line 120). Cancelled while BasicCegarLoop was constructing difference of abstraction (4347states) and FLOYD_HOARE automaton (currently 15 states, 10 states before enhancement), while ReachableStatesComputation was computing reachable states (1946 states constructedinput type IntersectNwa). - StatisticsResult: Ultimate Automizer benchmark data CFG has 7 procedures, 1120 locations, 1 error locations. TIMEOUT Result, 237.9s OverallTime, 5 OverallIterations, 3 TraceHistogramMax, 162.3s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 5234 SDtfs, 11820 SDslu, 2478 SDs, 0 SdLazy, 34404 SolverSat, 3621 SolverUnsat, 1 SolverUnknown, 0 SolverNotchecked, 149.2s Time, PredicateUnifierStatistics: 10 DeclaredPredicates, 874 GetRequests, 805 SyntacticMatches, 0 SemanticMatches, 69 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 176 ImplicationChecksByTransitivity, 4.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=4347occurred in iteration=4, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 64.7s AbstIntTime, 5 AbstIntIterations, 5 AbstIntStrong, 0.9944299966541958 AbsIntWeakeningRatio, 0.13167259786476868 AbsIntAvgWeakeningVarsNumRemoved, 1028.826809015421 AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.4s AutomataMinimizationTime, 4 MinimizatonAttempts, 341 StatesRemovedByMinimization, 4 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_label15_true-unreach-call.c_svcomp-Reach-64bit-ToothlessTaipan_OCT-OldIcfg.epf_AutomizerCInline.xml/Csv-Benchmark-0-2018-09-19_10-35-03-357.csv Written .csv to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/csv/Problem13_label15_true-unreach-call.c_svcomp-Reach-64bit-ToothlessTaipan_OCT-OldIcfg.epf_AutomizerCInline.xml/Csv-TraceAbstractionBenchmarks-0-2018-09-19_10-35-03-357.csv Completed graceful shutdown