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_label18_true-unreach-call.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-dace188-m [2018-09-15 19:55:25,234 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-09-15 19:55:25,236 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-09-15 19:55:25,251 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-09-15 19:55:25,252 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-09-15 19:55:25,253 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-09-15 19:55:25,254 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-09-15 19:55:25,256 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-09-15 19:55:25,258 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-09-15 19:55:25,259 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-09-15 19:55:25,260 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-09-15 19:55:25,260 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-09-15 19:55:25,261 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-09-15 19:55:25,262 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-09-15 19:55:25,267 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-09-15 19:55:25,268 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-09-15 19:55:25,273 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-09-15 19:55:25,275 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-09-15 19:55:25,280 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-09-15 19:55:25,284 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-09-15 19:55:25,286 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-09-15 19:55:25,287 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-09-15 19:55:25,296 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2018-09-15 19:55:25,309 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-09-15 19:55:25,309 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-09-15 19:55:25,312 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-09-15 19:55:25,313 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-09-15 19:55:25,314 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 [2018-09-15 19:55:25,344 INFO L110 SettingsManager]: Loading preferences was successful [2018-09-15 19:55:25,344 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-09-15 19:55:25,345 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-09-15 19:55:25,348 INFO L133 SettingsManager]: * User list type=DISABLED [2018-09-15 19:55:25,349 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-09-15 19:55:25,349 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-09-15 19:55:25,349 INFO L133 SettingsManager]: * Congruence Domain=false [2018-09-15 19:55:25,349 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-09-15 19:55:25,350 INFO L133 SettingsManager]: * Abstract domain=OctagonDomain [2018-09-15 19:55:25,350 INFO L133 SettingsManager]: * Log string format=TERM [2018-09-15 19:55:25,350 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-09-15 19:55:25,350 INFO L133 SettingsManager]: * Interval Domain=false [2018-09-15 19:55:25,352 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-09-15 19:55:25,353 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-09-15 19:55:25,353 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-09-15 19:55:25,353 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-09-15 19:55:25,353 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-09-15 19:55:25,355 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-09-15 19:55:25,355 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-09-15 19:55:25,356 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-09-15 19:55:25,356 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-09-15 19:55:25,356 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-09-15 19:55:25,357 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-09-15 19:55:25,357 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-09-15 19:55:25,357 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-09-15 19:55:25,357 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-09-15 19:55:25,358 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-09-15 19:55:25,358 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-09-15 19:55:25,358 INFO L133 SettingsManager]: * Trace refinement strategy=TOOTHLESS_TAIPAN [2018-09-15 19:55:25,358 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-09-15 19:55:25,358 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-09-15 19:55:25,358 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-09-15 19:55:25,359 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-09-15 19:55:25,359 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-09-15 19:55:25,410 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-09-15 19:55:25,425 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-09-15 19:55:25,429 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-09-15 19:55:25,430 INFO L271 PluginConnector]: Initializing CDTParser... [2018-09-15 19:55:25,431 INFO L276 PluginConnector]: CDTParser initialized [2018-09-15 19:55:25,432 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem13_label18_true-unreach-call.c [2018-09-15 19:55:25,789 INFO L221 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4af8e51c1/779a6c6d31e547cdb5910e76dedfaa48/FLAG3e83fa4fc [2018-09-15 19:55:26,295 INFO L277 CDTParser]: Found 1 translation units. [2018-09-15 19:55:26,296 INFO L159 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem13_label18_true-unreach-call.c [2018-09-15 19:55:26,327 INFO L325 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4af8e51c1/779a6c6d31e547cdb5910e76dedfaa48/FLAG3e83fa4fc [2018-09-15 19:55:26,344 INFO L333 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4af8e51c1/779a6c6d31e547cdb5910e76dedfaa48 [2018-09-15 19:55:26,357 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-09-15 19:55:26,362 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-09-15 19:55:26,363 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-09-15 19:55:26,363 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-09-15 19:55:26,371 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-09-15 19:55:26,372 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.09 07:55:26" (1/1) ... [2018-09-15 19:55:26,376 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1ed21f75 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 07:55:26, skipping insertion in model container [2018-09-15 19:55:26,376 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.09 07:55:26" (1/1) ... [2018-09-15 19:55:26,390 INFO L160 ieTranslatorObserver]: Starting translation in SV-COMP mode [2018-09-15 19:55:27,916 INFO L170 PostProcessor]: Settings: Checked method=main [2018-09-15 19:55:27,941 INFO L424 MainDispatcher]: Starting main dispatcher in SV-COMP mode [2018-09-15 19:55:28,699 INFO L170 PostProcessor]: Settings: Checked method=main [2018-09-15 19:55:29,008 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 07:55:29 WrapperNode [2018-09-15 19:55:29,009 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-09-15 19:55:29,010 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-09-15 19:55:29,010 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-09-15 19:55:29,010 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-09-15 19:55:29,021 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 07:55:29" (1/1) ... [2018-09-15 19:55:29,135 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 07:55:29" (1/1) ... [2018-09-15 19:55:29,348 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-09-15 19:55:29,349 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-09-15 19:55:29,349 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-09-15 19:55:29,349 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-09-15 19:55:30,135 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 07:55:29" (1/1) ... [2018-09-15 19:55:30,136 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 07:55:29" (1/1) ... [2018-09-15 19:55:30,229 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 07:55:29" (1/1) ... [2018-09-15 19:55:30,229 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 07:55:29" (1/1) ... [2018-09-15 19:55:30,381 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 07:55:29" (1/1) ... [2018-09-15 19:55:30,433 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 07:55:29" (1/1) ... [2018-09-15 19:55:30,574 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 07:55:29" (1/1) ... [2018-09-15 19:55:30,636 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-09-15 19:55:30,636 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-09-15 19:55:30,637 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-09-15 19:55:30,637 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-09-15 19:55:30,640 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 07:55:29" (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 [2018-09-15 19:55:30,717 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-09-15 19:55:30,717 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-09-15 19:55:30,717 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output4 [2018-09-15 19:55:30,717 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output4 [2018-09-15 19:55:30,718 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output3 [2018-09-15 19:55:30,718 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output3 [2018-09-15 19:55:30,718 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output2 [2018-09-15 19:55:30,718 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output2 [2018-09-15 19:55:30,718 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2018-09-15 19:55:30,718 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2018-09-15 19:55:30,719 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-09-15 19:55:30,719 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-09-15 19:55:30,719 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-09-15 19:55:30,719 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-09-15 19:55:42,553 INFO L353 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-09-15 19:55:42,554 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.09 07:55:42 BoogieIcfgContainer [2018-09-15 19:55:42,554 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-09-15 19:55:42,555 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-09-15 19:55:42,555 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-09-15 19:55:42,558 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-09-15 19:55:42,559 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.09 07:55:26" (1/3) ... [2018-09-15 19:55:42,560 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@ee8a132 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.09 07:55:42, skipping insertion in model container [2018-09-15 19:55:42,560 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 07:55:29" (2/3) ... [2018-09-15 19:55:42,560 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@ee8a132 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.09 07:55:42, skipping insertion in model container [2018-09-15 19:55:42,560 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.09 07:55:42" (3/3) ... [2018-09-15 19:55:42,562 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem13_label18_true-unreach-call.c [2018-09-15 19:55:42,573 INFO L137 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-09-15 19:55:42,587 INFO L149 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-09-15 19:55:42,664 INFO L130 ementStrategyFactory]: Using default assertion order modulation [2018-09-15 19:55:42,665 INFO L381 AbstractCegarLoop]: Interprodecural is true [2018-09-15 19:55:42,665 INFO L382 AbstractCegarLoop]: Hoare is true [2018-09-15 19:55:42,665 INFO L383 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-09-15 19:55:42,665 INFO L384 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-09-15 19:55:42,666 INFO L385 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-09-15 19:55:42,666 INFO L386 AbstractCegarLoop]: Difference is false [2018-09-15 19:55:42,666 INFO L387 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-09-15 19:55:42,666 INFO L392 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-09-15 19:55:42,734 INFO L276 IsEmpty]: Start isEmpty. Operand 1120 states. [2018-09-15 19:55:42,746 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2018-09-15 19:55:42,746 INFO L368 BasicCegarLoop]: Found error trace [2018-09-15 19:55:42,747 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] [2018-09-15 19:55:42,749 INFO L423 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-15 19:55:42,753 INFO L82 PathProgramCache]: Analyzing trace with hash -856257052, now seen corresponding path program 1 times [2018-09-15 19:55:42,755 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-15 19:55:42,756 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 71 with the following transitions: [2018-09-15 19:55:42,760 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], [3087], [3089], [4242], [4246], [4252], [4256], [4269], [4270], [4271], [4273] [2018-09-15 19:55:42,831 INFO L148 AbstractInterpreter]: Using domain OctagonDomain [2018-09-15 19:55:42,832 INFO L101 FixpointEngine]: Starting fixpoint engine with domain OctagonDomain (maxUnwinding=3, maxParallelStates=2) [2018-09-15 19:55:45,319 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-15 19:55:45,321 INFO L272 AbstractInterpreter]: Visited 69 different actions 69 times. Never merged. Never widened. Never found a fixpoint. Largest state had 25 variables. [2018-09-15 19:55:45,334 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-15 19:55:46,256 INFO L232 lantSequenceWeakener]: Weakened 68 states. On average, predicates are now at 73.8% of their original sizes. [2018-09-15 19:55:46,256 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-15 19:55:46,624 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-15 19:55:46,625 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-15 19:55:46,626 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-09-15 19:55:46,626 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-15 19:55:46,632 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-09-15 19:55:46,639 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-09-15 19:55:46,640 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2018-09-15 19:55:46,643 INFO L87 Difference]: Start difference. First operand 1120 states. Second operand 6 states. [2018-09-15 19:56:08,234 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-15 19:56:08,235 INFO L93 Difference]: Finished difference Result 3044 states and 5648 transitions. [2018-09-15 19:56:08,236 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-09-15 19:56:08,238 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 70 [2018-09-15 19:56:08,239 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-15 19:56:08,271 INFO L225 Difference]: With dead ends: 3044 [2018-09-15 19:56:08,271 INFO L226 Difference]: Without dead ends: 1922 [2018-09-15 19:56:08,282 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 69 GetRequests, 65 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2018-09-15 19:56:08,304 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1922 states. [2018-09-15 19:56:08,431 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1922 to 1920. [2018-09-15 19:56:08,433 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1920 states. [2018-09-15 19:56:08,444 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1920 states to 1920 states and 2831 transitions. [2018-09-15 19:56:08,447 INFO L78 Accepts]: Start accepts. Automaton has 1920 states and 2831 transitions. Word has length 70 [2018-09-15 19:56:08,448 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-15 19:56:08,448 INFO L480 AbstractCegarLoop]: Abstraction has 1920 states and 2831 transitions. [2018-09-15 19:56:08,448 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-09-15 19:56:08,448 INFO L276 IsEmpty]: Start isEmpty. Operand 1920 states and 2831 transitions. [2018-09-15 19:56:08,457 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 172 [2018-09-15 19:56:08,457 INFO L368 BasicCegarLoop]: Found error trace [2018-09-15 19:56:08,458 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-15 19:56:08,458 INFO L423 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-15 19:56:08,459 INFO L82 PathProgramCache]: Analyzing trace with hash -1819146280, now seen corresponding path program 1 times [2018-09-15 19:56:08,459 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-15 19:56:08,459 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 172 with the following transitions: [2018-09-15 19:56:08,460 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], [3087], [3089], [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] [2018-09-15 19:56:08,469 INFO L148 AbstractInterpreter]: Using domain OctagonDomain [2018-09-15 19:56:08,469 INFO L101 FixpointEngine]: Starting fixpoint engine with domain OctagonDomain (maxUnwinding=3, maxParallelStates=2) [2018-09-15 19:56:20,732 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-15 19:56:20,733 INFO L272 AbstractInterpreter]: Visited 108 different actions 210 times. Merged at 5 different actions 5 times. Never widened. Found 1 fixpoints after 1 different actions. Largest state had 26 variables. [2018-09-15 19:56:20,746 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-15 19:56:24,025 INFO L232 lantSequenceWeakener]: Weakened 169 states. On average, predicates are now at 72.1% of their original sizes. [2018-09-15 19:56:24,026 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-15 19:56:24,817 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-15 19:56:24,817 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-15 19:56:24,817 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2018-09-15 19:56:24,817 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-15 19:56:24,819 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2018-09-15 19:56:24,819 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2018-09-15 19:56:24,819 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2018-09-15 19:56:24,819 INFO L87 Difference]: Start difference. First operand 1920 states and 2831 transitions. Second operand 10 states. [2018-09-15 19:57:31,585 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-15 19:57:31,585 INFO L93 Difference]: Finished difference Result 3839 states and 6442 transitions. [2018-09-15 19:57:31,586 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2018-09-15 19:57:31,586 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 171 [2018-09-15 19:57:31,589 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-15 19:57:31,603 INFO L225 Difference]: With dead ends: 3839 [2018-09-15 19:57:31,603 INFO L226 Difference]: Without dead ends: 2729 [2018-09-15 19:57:31,608 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 177 GetRequests, 162 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 33 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=68, Invalid=204, Unknown=0, NotChecked=0, Total=272 [2018-09-15 19:57:31,611 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2729 states. [2018-09-15 19:57:31,677 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2729 to 2726. [2018-09-15 19:57:31,678 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2726 states. [2018-09-15 19:57:31,686 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2726 states to 2726 states and 3652 transitions. [2018-09-15 19:57:31,686 INFO L78 Accepts]: Start accepts. Automaton has 2726 states and 3652 transitions. Word has length 171 [2018-09-15 19:57:31,687 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-15 19:57:31,687 INFO L480 AbstractCegarLoop]: Abstraction has 2726 states and 3652 transitions. [2018-09-15 19:57:31,687 INFO L481 AbstractCegarLoop]: Interpolant automaton has 10 states. [2018-09-15 19:57:31,687 INFO L276 IsEmpty]: Start isEmpty. Operand 2726 states and 3652 transitions. [2018-09-15 19:57:31,692 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 201 [2018-09-15 19:57:31,692 INFO L368 BasicCegarLoop]: Found error trace [2018-09-15 19:57:31,692 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-15 19:57:31,693 INFO L423 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-15 19:57:31,693 INFO L82 PathProgramCache]: Analyzing trace with hash -1344418591, now seen corresponding path program 1 times [2018-09-15 19:57:31,693 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-15 19:57:31,694 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 201 with the following transitions: [2018-09-15 19:57:31,694 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], [3087], [3089], [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] [2018-09-15 19:57:31,701 INFO L148 AbstractInterpreter]: Using domain OctagonDomain [2018-09-15 19:57:31,702 INFO L101 FixpointEngine]: Starting fixpoint engine with domain OctagonDomain (maxUnwinding=3, maxParallelStates=2) [2018-09-15 19:57:44,085 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-15 19:57:44,085 INFO L272 AbstractInterpreter]: Visited 137 different actions 267 times. Merged at 4 different actions 4 times. Never widened. Found 1 fixpoints after 1 different actions. Largest state had 26 variables. [2018-09-15 19:57:44,093 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-15 19:57:46,496 INFO L232 lantSequenceWeakener]: Weakened 198 states. On average, predicates are now at 71.92% of their original sizes. [2018-09-15 19:57:46,497 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-15 19:57:47,155 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-15 19:57:47,155 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-15 19:57:47,155 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2018-09-15 19:57:47,155 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-15 19:57:47,156 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2018-09-15 19:57:47,157 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2018-09-15 19:57:47,157 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=96, Unknown=0, NotChecked=0, Total=132 [2018-09-15 19:57:47,157 INFO L87 Difference]: Start difference. First operand 2726 states and 3652 transitions. Second operand 12 states. [2018-09-15 19:59:00,994 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-15 19:59:00,995 INFO L93 Difference]: Finished difference Result 5450 states and 8859 transitions. [2018-09-15 19:59:00,996 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2018-09-15 19:59:00,996 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 200 [2018-09-15 19:59:00,997 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-15 19:59:01,017 INFO L225 Difference]: With dead ends: 5450 [2018-09-15 19:59:01,017 INFO L226 Difference]: Without dead ends: 4340 [2018-09-15 19:59:01,023 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 207 GetRequests, 189 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 62 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=91, Invalid=289, Unknown=0, NotChecked=0, Total=380 [2018-09-15 19:59:01,027 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4340 states. [2018-09-15 19:59:01,141 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4340 to 4337. [2018-09-15 19:59:01,142 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4337 states. [2018-09-15 19:59:01,154 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4337 states to 4337 states and 5285 transitions. [2018-09-15 19:59:01,154 INFO L78 Accepts]: Start accepts. Automaton has 4337 states and 5285 transitions. Word has length 200 [2018-09-15 19:59:01,155 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-15 19:59:01,156 INFO L480 AbstractCegarLoop]: Abstraction has 4337 states and 5285 transitions. [2018-09-15 19:59:01,156 INFO L481 AbstractCegarLoop]: Interpolant automaton has 12 states. [2018-09-15 19:59:01,156 INFO L276 IsEmpty]: Start isEmpty. Operand 4337 states and 5285 transitions. [2018-09-15 19:59:01,161 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 294 [2018-09-15 19:59:01,161 INFO L368 BasicCegarLoop]: Found error trace [2018-09-15 19:59:01,161 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-15 19:59:01,162 INFO L423 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-15 19:59:01,162 INFO L82 PathProgramCache]: Analyzing trace with hash -295875732, now seen corresponding path program 1 times [2018-09-15 19:59:01,162 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-15 19:59:01,163 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 294 with the following transitions: [2018-09-15 19:59:01,163 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], [3087], [3089], [3092], [3100], [3108], [3116], [3121], [3125], [3129], [3133], [3137], [3148], [3152], [3156], [3160], [3164], [3168], [3179], [3183], [3187], [3191], [3195], [3199], [3203], [3207], [3218], [3222], [3226], [3230], [3234], [3238], [3242], [3246], [3250], [3254], [3258], [3262], [3266], [3270], [3274], [3278], [3282], [3286], [3290], [3294], [3305], [3309], [3313], [3317], [3321], [3325], [3329], [3333], [3344], [3355], [3366], [3370], [3374], [3378], [3382], [3386], [3390], [3394], [3398], [3402], [3406], [3410], [3414], [3425], [3429], [3440], [3451], [3455], [3459], [3463], [3467], [3471], [3475], [3479], [3483], [3487], [3498], [3502], [3506], [3517], [3521], [3525], [3529], [3533], [3537], [3541], [3545], [3556], [3560], [3564], [3568], [3572], [3576], [3580], [3591], [3595], [3599], [3603], [3614], [3618], [3622], [3626], [3630], [3634], [3638], [3642], [3646], [3650], [3654], [3658], [3662], [3666], [3670], [3674], [3678], [3682], [3686], [3690], [3694], [3698], [3709], [3713], [3717], [3721], [3725], [3729], [3733], [3737], [3741], [3745], [3749], [3753], [3757], [3768], [3772], [3776], [3780], [3784], [3788], [3792], [3796], [3800], [3804], [3815], [3819], [3823], [3827], [3831], [3835], [3839], [3843], [3847], [3851], [3862], [3865], [4238], [4242], [4246], [4252], [4256], [4258], [4269], [4270], [4271], [4273], [4274] [2018-09-15 19:59:01,173 INFO L148 AbstractInterpreter]: Using domain OctagonDomain [2018-09-15 19:59:01,174 INFO L101 FixpointEngine]: Starting fixpoint engine with domain OctagonDomain (maxUnwinding=3, maxParallelStates=2) [2018-09-15 19:59:15,578 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-09-15 19:59:31,586 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-15 19:59:31,586 INFO L272 AbstractInterpreter]: Visited 230 different actions 453 times. Merged at 4 different actions 4 times. Never widened. Found 1 fixpoints after 1 different actions. Largest state had 26 variables. [2018-09-15 19:59:31,623 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-15 19:59:34,761 INFO L232 lantSequenceWeakener]: Weakened 291 states. On average, predicates are now at 71.57% of their original sizes. [2018-09-15 19:59:34,761 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-15 19:59:35,554 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-15 19:59:35,554 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-15 19:59:35,555 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2018-09-15 19:59:35,555 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-15 19:59:35,555 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2018-09-15 19:59:35,556 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2018-09-15 19:59:35,556 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=113, Unknown=0, NotChecked=0, Total=156 [2018-09-15 19:59:35,556 INFO L87 Difference]: Start difference. First operand 4337 states and 5285 transitions. Second operand 13 states. Received shutdown request... [2018-09-15 19:59:41,778 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2018-09-15 19:59:41,779 WARN L549 AbstractCegarLoop]: Verification canceled [2018-09-15 19:59:41,786 WARN L206 ceAbstractionStarter]: Timeout [2018-09-15 19:59:41,786 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 15.09 07:59:41 BoogieIcfgContainer [2018-09-15 19:59:41,787 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-09-15 19:59:41,788 INFO L168 Benchmark]: Toolchain (without parser) took 255429.74 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: -1.2 GB). Peak memory consumption was 1.6 GB. Max. memory is 7.1 GB. [2018-09-15 19:59:41,790 INFO L168 Benchmark]: CDTParser took 0.20 ms. Allocated memory is still 1.5 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-09-15 19:59:41,791 INFO L168 Benchmark]: CACSL2BoogieTranslator took 2646.10 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.1 GB in the end (delta: 339.3 MB). Peak memory consumption was 339.3 MB. Max. memory is 7.1 GB. [2018-09-15 19:59:41,792 INFO L168 Benchmark]: Boogie Procedure Inliner took 338.53 ms. Allocated memory is still 1.5 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 42.3 MB). Peak memory consumption was 42.3 MB. Max. memory is 7.1 GB. [2018-09-15 19:59:41,793 INFO L168 Benchmark]: Boogie Preprocessor took 1287.39 ms. Allocated memory was 1.5 GB in the beginning and 2.6 GB in the end (delta: 1.0 GB). Free memory was 1.0 GB in the beginning and 2.4 GB in the end (delta: -1.3 GB). Peak memory consumption was 174.3 MB. Max. memory is 7.1 GB. [2018-09-15 19:59:41,794 INFO L168 Benchmark]: RCFGBuilder took 11917.61 ms. Allocated memory was 2.6 GB in the beginning and 2.7 GB in the end (delta: 161.5 MB). Free memory was 2.4 GB in the beginning and 2.4 GB in the end (delta: -3.7 MB). Peak memory consumption was 745.3 MB. Max. memory is 7.1 GB. [2018-09-15 19:59:41,795 INFO L168 Benchmark]: TraceAbstraction took 239231.98 ms. Allocated memory was 2.7 GB in the beginning and 4.3 GB in the end (delta: 1.6 GB). Free memory was 2.4 GB in the beginning and 2.7 GB in the end (delta: -281.9 MB). Peak memory consumption was 1.3 GB. Max. memory is 7.1 GB. [2018-09-15 19:59:41,800 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20 ms. Allocated memory is still 1.5 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 2646.10 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.1 GB in the end (delta: 339.3 MB). Peak memory consumption was 339.3 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 338.53 ms. Allocated memory is still 1.5 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 42.3 MB). Peak memory consumption was 42.3 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 1287.39 ms. Allocated memory was 1.5 GB in the beginning and 2.6 GB in the end (delta: 1.0 GB). Free memory was 1.0 GB in the beginning and 2.4 GB in the end (delta: -1.3 GB). Peak memory consumption was 174.3 MB. Max. memory is 7.1 GB. * RCFGBuilder took 11917.61 ms. Allocated memory was 2.6 GB in the beginning and 2.7 GB in the end (delta: 161.5 MB). Free memory was 2.4 GB in the beginning and 2.4 GB in the end (delta: -3.7 MB). Peak memory consumption was 745.3 MB. Max. memory is 7.1 GB. * TraceAbstraction took 239231.98 ms. Allocated memory was 2.7 GB in the beginning and 4.3 GB in the end (delta: 1.6 GB). Free memory was 2.4 GB in the beginning and 2.7 GB in the end (delta: -281.9 MB). Peak memory consumption was 1.3 GB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResultAtElement [Line: 201]: Timeout (TraceAbstraction) Unable to prove that call of __VERIFIER_error() unreachable (line 201). Cancelled while BasicCegarLoop was constructing difference of abstraction (4337states) and FLOYD_HOARE automaton (currently 9 states, 13 states before enhancement), while ReachableStatesComputation was computing reachable states (257 states constructedinput type IntersectNwa). - StatisticsResult: Ultimate Automizer benchmark data CFG has 7 procedures, 1120 locations, 1 error locations. TIMEOUT Result, 239.1s OverallTime, 4 OverallIterations, 2 TraceHistogramMax, 168.5s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 3751 SDtfs, 5888 SDslu, 3054 SDs, 0 SdLazy, 33224 SolverSat, 3116 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 157.2s Time, PredicateUnifierStatistics: 8 DeclaredPredicates, 751 GetRequests, 697 SyntacticMatches, 0 SemanticMatches, 54 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 143 ImplicationChecksByTransitivity, 3.7s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=4337occurred in iteration=3, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 57.7s AbstIntTime, 4 AbstIntIterations, 4 AbstIntStrong, 0.9954329118370211 AbsIntWeakeningRatio, 0.10684931506849316 AbsIntAvgWeakeningVarsNumRemoved, 362.1465753424658 AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.3s AutomataMinimizationTime, 3 MinimizatonAttempts, 8 StatesRemovedByMinimization, 3 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_label18_true-unreach-call.c_svcomp-Reach-64bit-ToothlessTaipan_OCT-OldIcfg.epf_AutomizerCInline.xml/Csv-Benchmark-0-2018-09-15_19-59-41-816.csv Written .csv to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/csv/Problem13_label18_true-unreach-call.c_svcomp-Reach-64bit-ToothlessTaipan_OCT-OldIcfg.epf_AutomizerCInline.xml/Csv-TraceAbstractionBenchmarks-0-2018-09-15_19-59-41-816.csv Completed graceful shutdown