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_label52_true-unreach-call.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-69f5bdd-m [2018-09-19 10:36:19,486 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-09-19 10:36:19,488 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-09-19 10:36:19,502 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-09-19 10:36:19,502 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-09-19 10:36:19,506 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-09-19 10:36:19,507 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-09-19 10:36:19,510 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-09-19 10:36:19,512 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-09-19 10:36:19,513 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-09-19 10:36:19,520 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-09-19 10:36:19,520 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-09-19 10:36:19,522 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-09-19 10:36:19,526 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-09-19 10:36:19,527 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-09-19 10:36:19,529 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-09-19 10:36:19,530 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-09-19 10:36:19,531 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-09-19 10:36:19,536 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-09-19 10:36:19,538 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-09-19 10:36:19,541 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-09-19 10:36:19,542 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-09-19 10:36:19,545 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-09-19 10:36:19,546 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-09-19 10:36:19,546 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-09-19 10:36:19,548 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-09-19 10:36:19,551 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-09-19 10:36:19,552 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-09-19 10:36:19,553 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-09-19 10:36:19,554 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-09-19 10:36:19,554 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-09-19 10:36:19,556 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-09-19 10:36:19,557 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-09-19 10:36:19,557 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-09-19 10:36:19,558 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-09-19 10:36:19,559 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-09-19 10:36:19,559 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 10:36:19,587 INFO L110 SettingsManager]: Loading preferences was successful [2018-09-19 10:36:19,588 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-09-19 10:36:19,592 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-09-19 10:36:19,592 INFO L133 SettingsManager]: * User list type=DISABLED [2018-09-19 10:36:19,592 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-09-19 10:36:19,593 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-09-19 10:36:19,593 INFO L133 SettingsManager]: * Congruence Domain=false [2018-09-19 10:36:19,593 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-09-19 10:36:19,593 INFO L133 SettingsManager]: * Abstract domain=OctagonDomain [2018-09-19 10:36:19,593 INFO L133 SettingsManager]: * Log string format=TERM [2018-09-19 10:36:19,594 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-09-19 10:36:19,594 INFO L133 SettingsManager]: * Parallel states before merging=1 [2018-09-19 10:36:19,594 INFO L133 SettingsManager]: * Interval Domain=false [2018-09-19 10:36:19,598 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-09-19 10:36:19,598 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-09-19 10:36:19,598 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-09-19 10:36:19,598 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-09-19 10:36:19,598 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-09-19 10:36:19,599 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-09-19 10:36:19,599 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-09-19 10:36:19,599 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-09-19 10:36:19,599 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-09-19 10:36:19,601 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-09-19 10:36:19,602 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-09-19 10:36:19,602 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-09-19 10:36:19,602 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-09-19 10:36:19,602 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-09-19 10:36:19,603 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-09-19 10:36:19,603 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-09-19 10:36:19,603 INFO L133 SettingsManager]: * Trace refinement strategy=TOOTHLESS_TAIPAN [2018-09-19 10:36:19,603 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-09-19 10:36:19,603 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-09-19 10:36:19,604 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-09-19 10:36:19,604 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-09-19 10:36:19,604 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-09-19 10:36:19,660 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-09-19 10:36:19,675 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-09-19 10:36:19,683 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-09-19 10:36:19,685 INFO L271 PluginConnector]: Initializing CDTParser... [2018-09-19 10:36:19,689 INFO L276 PluginConnector]: CDTParser initialized [2018-09-19 10:36:19,690 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem13_label52_true-unreach-call.c [2018-09-19 10:36:20,020 INFO L221 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/79ffb30ae/adf816fc07524b7eb7d11096bf3a148f/FLAGbc186ef34 [2018-09-19 10:36:20,526 INFO L277 CDTParser]: Found 1 translation units. [2018-09-19 10:36:20,527 INFO L159 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem13_label52_true-unreach-call.c [2018-09-19 10:36:20,565 INFO L325 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/79ffb30ae/adf816fc07524b7eb7d11096bf3a148f/FLAGbc186ef34 [2018-09-19 10:36:20,582 INFO L333 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/79ffb30ae/adf816fc07524b7eb7d11096bf3a148f [2018-09-19 10:36:20,594 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-09-19 10:36:20,597 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-09-19 10:36:20,599 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-09-19 10:36:20,599 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-09-19 10:36:20,606 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-09-19 10:36:20,607 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.09 10:36:20" (1/1) ... [2018-09-19 10:36:20,610 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 10:36:20, skipping insertion in model container [2018-09-19 10:36:20,610 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.09 10:36:20" (1/1) ... [2018-09-19 10:36:20,623 INFO L160 ieTranslatorObserver]: Starting translation in SV-COMP mode [2018-09-19 10:36:22,152 INFO L170 PostProcessor]: Settings: Checked method=main [2018-09-19 10:36:22,171 INFO L424 MainDispatcher]: Starting main dispatcher in SV-COMP mode [2018-09-19 10:36:22,887 INFO L170 PostProcessor]: Settings: Checked method=main [2018-09-19 10:36:23,297 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 10:36:23 WrapperNode [2018-09-19 10:36:23,298 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-09-19 10:36:23,299 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-09-19 10:36:23,299 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-09-19 10:36:23,299 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-09-19 10:36:23,309 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 10:36:23" (1/1) ... [2018-09-19 10:36:23,436 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 10:36:23" (1/1) ... [2018-09-19 10:36:23,599 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-09-19 10:36:23,599 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-09-19 10:36:23,600 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-09-19 10:36:23,600 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-09-19 10:36:24,396 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 10:36:23" (1/1) ... [2018-09-19 10:36:24,396 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 10:36:23" (1/1) ... [2018-09-19 10:36:24,452 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 10:36:23" (1/1) ... [2018-09-19 10:36:24,452 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 10:36:23" (1/1) ... [2018-09-19 10:36:24,640 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 10:36:23" (1/1) ... [2018-09-19 10:36:24,685 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 10:36:23" (1/1) ... [2018-09-19 10:36:24,744 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 10:36:23" (1/1) ... [2018-09-19 10:36:24,798 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-09-19 10:36:24,799 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-09-19 10:36:24,799 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-09-19 10:36:24,799 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-09-19 10:36:24,800 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 10:36:23" (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 10:36:24,871 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-09-19 10:36:24,872 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-09-19 10:36:24,872 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output4 [2018-09-19 10:36:24,872 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output4 [2018-09-19 10:36:24,872 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output3 [2018-09-19 10:36:24,873 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output3 [2018-09-19 10:36:24,873 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output2 [2018-09-19 10:36:24,873 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output2 [2018-09-19 10:36:24,873 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2018-09-19 10:36:24,873 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2018-09-19 10:36:24,873 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-09-19 10:36:24,874 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-09-19 10:36:24,874 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-09-19 10:36:24,874 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-09-19 10:36:37,081 INFO L356 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-09-19 10:36:37,082 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.09 10:36:37 BoogieIcfgContainer [2018-09-19 10:36:37,082 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-09-19 10:36:37,083 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-09-19 10:36:37,083 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-09-19 10:36:37,087 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-09-19 10:36:37,087 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.09 10:36:20" (1/3) ... [2018-09-19 10:36:37,088 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 10:36:37, skipping insertion in model container [2018-09-19 10:36:37,088 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 10:36:23" (2/3) ... [2018-09-19 10:36:37,088 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 10:36:37, skipping insertion in model container [2018-09-19 10:36:37,089 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.09 10:36:37" (3/3) ... [2018-09-19 10:36:37,090 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem13_label52_true-unreach-call.c [2018-09-19 10:36:37,100 INFO L137 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-09-19 10:36:37,112 INFO L149 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-09-19 10:36:37,179 INFO L130 ementStrategyFactory]: Using default assertion order modulation [2018-09-19 10:36:37,180 INFO L381 AbstractCegarLoop]: Interprodecural is true [2018-09-19 10:36:37,180 INFO L382 AbstractCegarLoop]: Hoare is true [2018-09-19 10:36:37,182 INFO L383 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-09-19 10:36:37,182 INFO L384 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-09-19 10:36:37,182 INFO L385 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-09-19 10:36:37,182 INFO L386 AbstractCegarLoop]: Difference is false [2018-09-19 10:36:37,182 INFO L387 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-09-19 10:36:37,183 INFO L392 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-09-19 10:36:37,235 INFO L276 IsEmpty]: Start isEmpty. Operand 1120 states. [2018-09-19 10:36:37,248 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2018-09-19 10:36:37,248 INFO L368 BasicCegarLoop]: Found error trace [2018-09-19 10:36:37,249 INFO L376 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-19 10:36:37,250 INFO L423 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-19 10:36:37,256 INFO L82 PathProgramCache]: Analyzing trace with hash -774157709, now seen corresponding path program 1 times [2018-09-19 10:36:37,259 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-19 10:36:37,260 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 72 with the following transitions: [2018-09-19 10:36:37,262 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], [2875], [2883], [2891], [2899], [2907], [2915], [2923], [2931], [2939], [2947], [2955], [2963], [2971], [2979], [2987], [2995], [3003], [3011], [3019], [3027], [3035], [3043], [3051], [3059], [3067], [3075], [3083], [3091], [3095], [3097], [4242], [4246], [4252], [4256], [4269], [4270], [4271], [4273] [2018-09-19 10:36:37,326 INFO L148 AbstractInterpreter]: Using domain OctagonDomain [2018-09-19 10:36:37,327 INFO L101 FixpointEngine]: Starting fixpoint engine with domain OctagonDomain (maxUnwinding=3, maxParallelStates=1) [2018-09-19 10:36:39,539 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-19 10:36:39,540 INFO L272 AbstractInterpreter]: Visited 70 different actions 70 times. Never merged. Never widened. Never found a fixpoint. Largest state had 25 variables. [2018-09-19 10:36:39,555 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-19 10:36:40,477 INFO L232 lantSequenceWeakener]: Weakened 69 states. On average, predicates are now at 73.81% of their original sizes. [2018-09-19 10:36:40,478 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-19 10:36:40,857 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-19 10:36:40,859 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-19 10:36:40,859 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-09-19 10:36:40,859 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-19 10:36:40,865 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-09-19 10:36:40,872 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-09-19 10:36:40,873 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2018-09-19 10:36:40,875 INFO L87 Difference]: Start difference. First operand 1120 states. Second operand 6 states. [2018-09-19 10:37:02,375 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-19 10:37:02,376 INFO L93 Difference]: Finished difference Result 3044 states and 5648 transitions. [2018-09-19 10:37:02,378 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-09-19 10:37:02,379 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 71 [2018-09-19 10:37:02,380 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-19 10:37:02,412 INFO L225 Difference]: With dead ends: 3044 [2018-09-19 10:37:02,413 INFO L226 Difference]: Without dead ends: 1922 [2018-09-19 10:37:02,426 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 70 GetRequests, 66 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 10:37:02,449 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1922 states. [2018-09-19 10:37:02,575 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1922 to 1920. [2018-09-19 10:37:02,576 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1920 states. [2018-09-19 10:37:02,587 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1920 states to 1920 states and 2831 transitions. [2018-09-19 10:37:02,589 INFO L78 Accepts]: Start accepts. Automaton has 1920 states and 2831 transitions. Word has length 71 [2018-09-19 10:37:02,591 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-19 10:37:02,592 INFO L480 AbstractCegarLoop]: Abstraction has 1920 states and 2831 transitions. [2018-09-19 10:37:02,592 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-09-19 10:37:02,592 INFO L276 IsEmpty]: Start isEmpty. Operand 1920 states and 2831 transitions. [2018-09-19 10:37:02,604 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 173 [2018-09-19 10:37:02,604 INFO L368 BasicCegarLoop]: Found error trace [2018-09-19 10:37:02,605 INFO L376 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2018-09-19 10:37:02,605 INFO L423 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-19 10:37:02,605 INFO L82 PathProgramCache]: Analyzing trace with hash -1253599712, now seen corresponding path program 1 times [2018-09-19 10:37:02,606 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-19 10:37:02,606 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 173 with the following transitions: [2018-09-19 10:37:02,606 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], [2875], [2883], [2891], [2899], [2907], [2915], [2923], [2931], [2939], [2947], [2955], [2963], [2971], [2979], [2987], [2995], [3003], [3011], [3019], [3027], [3035], [3043], [3051], [3059], [3067], [3075], [3083], [3091], [3095], [3097], [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 10:37:02,614 INFO L148 AbstractInterpreter]: Using domain OctagonDomain [2018-09-19 10:37:02,614 INFO L101 FixpointEngine]: Starting fixpoint engine with domain OctagonDomain (maxUnwinding=3, maxParallelStates=1) [2018-09-19 10:37:14,230 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-19 10:37:14,231 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 10:37:14,241 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-19 10:37:15,682 INFO L232 lantSequenceWeakener]: Weakened 170 states. On average, predicates are now at 72.09% of their original sizes. [2018-09-19 10:37:15,683 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-19 10:37:16,658 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-19 10:37:16,659 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-19 10:37:16,659 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2018-09-19 10:37:16,659 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-19 10:37:16,660 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2018-09-19 10:37:16,661 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2018-09-19 10:37:16,661 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2018-09-19 10:37:16,661 INFO L87 Difference]: Start difference. First operand 1920 states and 2831 transitions. Second operand 10 states. [2018-09-19 10:37:52,092 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-19 10:37:52,092 INFO L93 Difference]: Finished difference Result 3841 states and 6447 transitions. [2018-09-19 10:37:52,093 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2018-09-19 10:37:52,093 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 172 [2018-09-19 10:37:52,095 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-19 10:37:52,108 INFO L225 Difference]: With dead ends: 3841 [2018-09-19 10:37:52,109 INFO L226 Difference]: Without dead ends: 2731 [2018-09-19 10:37:52,114 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 178 GetRequests, 163 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 33 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=68, Invalid=204, Unknown=0, NotChecked=0, Total=272 [2018-09-19 10:37:52,118 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2731 states. [2018-09-19 10:37:52,186 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2731 to 2726. [2018-09-19 10:37:52,187 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2726 states. [2018-09-19 10:37:52,197 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2726 states to 2726 states and 3662 transitions. [2018-09-19 10:37:52,197 INFO L78 Accepts]: Start accepts. Automaton has 2726 states and 3662 transitions. Word has length 172 [2018-09-19 10:37:52,198 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-19 10:37:52,198 INFO L480 AbstractCegarLoop]: Abstraction has 2726 states and 3662 transitions. [2018-09-19 10:37:52,199 INFO L481 AbstractCegarLoop]: Interpolant automaton has 10 states. [2018-09-19 10:37:52,199 INFO L276 IsEmpty]: Start isEmpty. Operand 2726 states and 3662 transitions. [2018-09-19 10:37:52,203 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 202 [2018-09-19 10:37:52,203 INFO L368 BasicCegarLoop]: Found error trace [2018-09-19 10:37:52,203 INFO L376 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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 10:37:52,204 INFO L423 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-19 10:37:52,204 INFO L82 PathProgramCache]: Analyzing trace with hash 1090970517, now seen corresponding path program 1 times [2018-09-19 10:37:52,204 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-19 10:37:52,204 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 202 with the following transitions: [2018-09-19 10:37:52,205 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], [2875], [2883], [2891], [2899], [2907], [2915], [2923], [2931], [2939], [2947], [2955], [2963], [2971], [2979], [2987], [2995], [3003], [3011], [3019], [3027], [3035], [3043], [3051], [3059], [3067], [3075], [3083], [3091], [3095], [3097], [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 10:37:52,210 INFO L148 AbstractInterpreter]: Using domain OctagonDomain [2018-09-19 10:37:52,211 INFO L101 FixpointEngine]: Starting fixpoint engine with domain OctagonDomain (maxUnwinding=3, maxParallelStates=1) [2018-09-19 10:38:01,740 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-09-19 10:38:07,073 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-19 10:38:07,073 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 10:38:07,115 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-19 10:38:08,913 INFO L232 lantSequenceWeakener]: Weakened 199 states. On average, predicates are now at 71.91% of their original sizes. [2018-09-19 10:38:08,914 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-19 10:38:09,616 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-19 10:38:09,616 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-19 10:38:09,617 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2018-09-19 10:38:09,617 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-19 10:38:09,619 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2018-09-19 10:38:09,620 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2018-09-19 10:38:09,620 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=116, Unknown=0, NotChecked=0, Total=156 [2018-09-19 10:38:09,620 INFO L87 Difference]: Start difference. First operand 2726 states and 3662 transitions. Second operand 13 states. [2018-09-19 10:39:02,885 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-19 10:39:02,885 INFO L93 Difference]: Finished difference Result 5542 states and 9047 transitions. [2018-09-19 10:39:02,886 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2018-09-19 10:39:02,886 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 201 [2018-09-19 10:39:02,888 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-19 10:39:02,907 INFO L225 Difference]: With dead ends: 5542 [2018-09-19 10:39:02,907 INFO L226 Difference]: Without dead ends: 4432 [2018-09-19 10:39:02,913 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 213 GetRequests, 189 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 122 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=146, Invalid=504, Unknown=0, NotChecked=0, Total=650 [2018-09-19 10:39:02,917 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4432 states. [2018-09-19 10:39:03,021 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4432 to 4345. [2018-09-19 10:39:03,022 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4345 states. [2018-09-19 10:39:03,034 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4345 states to 4345 states and 5317 transitions. [2018-09-19 10:39:03,034 INFO L78 Accepts]: Start accepts. Automaton has 4345 states and 5317 transitions. Word has length 201 [2018-09-19 10:39:03,035 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-19 10:39:03,035 INFO L480 AbstractCegarLoop]: Abstraction has 4345 states and 5317 transitions. [2018-09-19 10:39:03,036 INFO L481 AbstractCegarLoop]: Interpolant automaton has 13 states. [2018-09-19 10:39:03,036 INFO L276 IsEmpty]: Start isEmpty. Operand 4345 states and 5317 transitions. [2018-09-19 10:39:03,044 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 267 [2018-09-19 10:39:03,045 INFO L368 BasicCegarLoop]: Found error trace [2018-09-19 10:39:03,046 INFO L376 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-19 10:39:03,046 INFO L423 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-19 10:39:03,046 INFO L82 PathProgramCache]: Analyzing trace with hash 1042778739, now seen corresponding path program 1 times [2018-09-19 10:39:03,047 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-19 10:39:03,047 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 267 with the following transitions: [2018-09-19 10:39:03,047 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], [2875], [2883], [2891], [2899], [2907], [2915], [2923], [2931], [2939], [2947], [2955], [2963], [2971], [2979], [2987], [2995], [3003], [3011], [3019], [3027], [3035], [3043], [3051], [3059], [3067], [3075], [3083], [3091], [3095], [3097], [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 10:39:03,059 INFO L148 AbstractInterpreter]: Using domain OctagonDomain [2018-09-19 10:39:03,059 INFO L101 FixpointEngine]: Starting fixpoint engine with domain OctagonDomain (maxUnwinding=3, maxParallelStates=1) [2018-09-19 10:39:09,041 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-09-19 10:39:15,582 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-19 10:39:15,583 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 10:39:15,592 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-19 10:39:17,076 INFO L232 lantSequenceWeakener]: Weakened 264 states. On average, predicates are now at 71.68% of their original sizes. [2018-09-19 10:39:17,076 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-19 10:39:17,428 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-19 10:39:17,428 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-19 10:39:17,429 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2018-09-19 10:39:17,429 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-19 10:39:17,429 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2018-09-19 10:39:17,429 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2018-09-19 10:39:17,430 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2018-09-19 10:39:17,430 INFO L87 Difference]: Start difference. First operand 4345 states and 5317 transitions. Second operand 10 states. [2018-09-19 10:40:11,652 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-19 10:40:11,652 INFO L93 Difference]: Finished difference Result 7892 states and 10601 transitions. [2018-09-19 10:40:11,661 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2018-09-19 10:40:11,662 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 266 [2018-09-19 10:40:11,662 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-19 10:40:11,686 INFO L225 Difference]: With dead ends: 7892 [2018-09-19 10:40:11,686 INFO L226 Difference]: Without dead ends: 5163 [2018-09-19 10:40:11,694 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 272 GetRequests, 257 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 10:40:11,699 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5163 states. [2018-09-19 10:40:11,854 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5163 to 5152. [2018-09-19 10:40:11,855 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5152 states. [2018-09-19 10:40:11,869 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5152 states to 5152 states and 6163 transitions. [2018-09-19 10:40:11,869 INFO L78 Accepts]: Start accepts. Automaton has 5152 states and 6163 transitions. Word has length 266 [2018-09-19 10:40:11,870 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-19 10:40:11,870 INFO L480 AbstractCegarLoop]: Abstraction has 5152 states and 6163 transitions. [2018-09-19 10:40:11,870 INFO L481 AbstractCegarLoop]: Interpolant automaton has 10 states. [2018-09-19 10:40:11,870 INFO L276 IsEmpty]: Start isEmpty. Operand 5152 states and 6163 transitions. [2018-09-19 10:40:11,875 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 279 [2018-09-19 10:40:11,875 INFO L368 BasicCegarLoop]: Found error trace [2018-09-19 10:40:11,876 INFO L376 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-19 10:40:11,876 INFO L423 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-19 10:40:11,877 INFO L82 PathProgramCache]: Analyzing trace with hash -1576297077, now seen corresponding path program 1 times [2018-09-19 10:40:11,878 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-19 10:40:11,878 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 279 with the following transitions: [2018-09-19 10:40:11,878 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], [2875], [2883], [2891], [2899], [2907], [2915], [2923], [2931], [2939], [2947], [2955], [2963], [2971], [2979], [2987], [2995], [3003], [3011], [3019], [3027], [3035], [3043], [3051], [3059], [3067], [3075], [3083], [3091], [3095], [3097], [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 10:40:11,884 INFO L148 AbstractInterpreter]: Using domain OctagonDomain [2018-09-19 10:40:11,890 INFO L101 FixpointEngine]: Starting fixpoint engine with domain OctagonDomain (maxUnwinding=3, maxParallelStates=1) [2018-09-19 10:40:18,989 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-09-19 10:40:34,353 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-19 10:40:34,353 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 10:40:34,363 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates Received shutdown request... [2018-09-19 10:40:35,973 INFO L232 lantSequenceWeakener]: Weakened 276 states. On average, predicates are now at 71.64% of their original sizes. [2018-09-19 10:40:35,973 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-19 10:40:35,989 WARN L549 AbstractCegarLoop]: Verification canceled [2018-09-19 10:40:35,994 WARN L206 ceAbstractionStarter]: Timeout [2018-09-19 10:40:35,994 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.09 10:40:35 BoogieIcfgContainer [2018-09-19 10:40:35,994 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-09-19 10:40:35,995 INFO L168 Benchmark]: Toolchain (without parser) took 255400.90 ms. Allocated memory was 1.5 GB in the beginning and 4.3 GB in the end (delta: 2.8 GB). Free memory was 1.4 GB in the beginning and 2.7 GB in the end (delta: -1.3 GB). Peak memory consumption was 1.5 GB. Max. memory is 7.1 GB. [2018-09-19 10:40:35,997 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 10:40:35,998 INFO L168 Benchmark]: CACSL2BoogieTranslator took 2699.53 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 10:40:35,999 INFO L168 Benchmark]: Boogie Procedure Inliner took 300.64 ms. Allocated memory is still 1.5 GB. Free memory was 1.0 GB in the beginning and 1.0 GB in the end (delta: 43.3 MB). Peak memory consumption was 43.3 MB. Max. memory is 7.1 GB. [2018-09-19 10:40:36,000 INFO L168 Benchmark]: Boogie Preprocessor took 1198.87 ms. Allocated memory was 1.5 GB in the beginning and 2.5 GB in the end (delta: 986.7 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 10:40:36,001 INFO L168 Benchmark]: RCFGBuilder took 12283.87 ms. Allocated memory was 2.5 GB in the beginning and 2.7 GB in the end (delta: 162.0 MB). Free memory was 2.3 GB in the beginning and 2.3 GB in the end (delta: -4.7 MB). Peak memory consumption was 752.8 MB. Max. memory is 7.1 GB. [2018-09-19 10:40:36,002 INFO L168 Benchmark]: TraceAbstraction took 238911.18 ms. Allocated memory was 2.7 GB in the beginning and 4.3 GB in the end (delta: 1.6 GB). Free memory was 2.3 GB in the beginning and 2.7 GB in the end (delta: -383.4 MB). Peak memory consumption was 1.2 GB. Max. memory is 7.1 GB. [2018-09-19 10:40:36,007 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 2699.53 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 300.64 ms. Allocated memory is still 1.5 GB. Free memory was 1.0 GB in the beginning and 1.0 GB in the end (delta: 43.3 MB). Peak memory consumption was 43.3 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 1198.87 ms. Allocated memory was 1.5 GB in the beginning and 2.5 GB in the end (delta: 986.7 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 12283.87 ms. Allocated memory was 2.5 GB in the beginning and 2.7 GB in the end (delta: 162.0 MB). Free memory was 2.3 GB in the beginning and 2.3 GB in the end (delta: -4.7 MB). Peak memory consumption was 752.8 MB. Max. memory is 7.1 GB. * TraceAbstraction took 238911.18 ms. Allocated memory was 2.7 GB in the beginning and 4.3 GB in the end (delta: 1.6 GB). Free memory was 2.3 GB in the beginning and 2.7 GB in the end (delta: -383.4 MB). Peak memory consumption was 1.2 GB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResultAtElement [Line: 204]: Timeout (TraceAbstraction) Unable to prove that call of __VERIFIER_error() unreachable (line 204). Cancelled while BasicCegarLoop was analyzing trace of length 279 with TraceHistMax 3, while AbsIntCurrentIteration was generating AI predicates, while PredicateComparison was comparing new predicate (quantifier-free) to 3 known predicates. - StatisticsResult: Ultimate Automizer benchmark data CFG has 7 procedures, 1120 locations, 1 error locations. TIMEOUT Result, 238.8s OverallTime, 5 OverallIterations, 3 TraceHistogramMax, 164.5s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 4960 SDtfs, 11453 SDslu, 2642 SDs, 0 SdLazy, 35512 SolverSat, 3932 SolverUnsat, 1 SolverUnknown, 0 SolverNotchecked, 151.6s Time, PredicateUnifierStatistics: 8 DeclaredPredicates, 733 GetRequests, 675 SyntacticMatches, 0 SemanticMatches, 58 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 189 ImplicationChecksByTransitivity, 3.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=5152occurred in iteration=4, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 63.8s AbstIntTime, 5 AbstIntIterations, 5 AbstIntStrong, 0.9952232829903227 AbsIntWeakeningRatio, 0.11291963377416073 AbsIntAvgWeakeningVarsNumRemoved, 1036.1149542217702 AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.5s AutomataMinimizationTime, 4 MinimizatonAttempts, 105 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_label52_true-unreach-call.c_svcomp-Reach-64bit-ToothlessTaipan_OCT-OldIcfg.epf_AutomizerCInline.xml/Csv-Benchmark-0-2018-09-19_10-40-36-025.csv Written .csv to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/csv/Problem13_label52_true-unreach-call.c_svcomp-Reach-64bit-ToothlessTaipan_OCT-OldIcfg.epf_AutomizerCInline.xml/Csv-TraceAbstractionBenchmarks-0-2018-09-19_10-40-36-025.csv Completed graceful shutdown