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_label37_true-unreach-call.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-69f5bdd-m [2018-09-19 10:33:37,280 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-09-19 10:33:37,283 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-09-19 10:33:37,295 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-09-19 10:33:37,295 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-09-19 10:33:37,296 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-09-19 10:33:37,297 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-09-19 10:33:37,299 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-09-19 10:33:37,301 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-09-19 10:33:37,302 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-09-19 10:33:37,303 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-09-19 10:33:37,303 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-09-19 10:33:37,304 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-09-19 10:33:37,305 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-09-19 10:33:37,306 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-09-19 10:33:37,307 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-09-19 10:33:37,308 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-09-19 10:33:37,310 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-09-19 10:33:37,312 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-09-19 10:33:37,313 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-09-19 10:33:37,315 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-09-19 10:33:37,316 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-09-19 10:33:37,322 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-09-19 10:33:37,323 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-09-19 10:33:37,323 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-09-19 10:33:37,324 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-09-19 10:33:37,325 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-09-19 10:33:37,326 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-09-19 10:33:37,327 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-09-19 10:33:37,328 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-09-19 10:33:37,328 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-09-19 10:33:37,329 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-09-19 10:33:37,329 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-09-19 10:33:37,329 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-09-19 10:33:37,330 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-09-19 10:33:37,331 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-09-19 10:33:37,331 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 10:33:37,347 INFO L110 SettingsManager]: Loading preferences was successful [2018-09-19 10:33:37,347 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-09-19 10:33:37,348 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-09-19 10:33:37,348 INFO L133 SettingsManager]: * User list type=DISABLED [2018-09-19 10:33:37,348 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-09-19 10:33:37,348 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-09-19 10:33:37,349 INFO L133 SettingsManager]: * Congruence Domain=false [2018-09-19 10:33:37,349 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-09-19 10:33:37,349 INFO L133 SettingsManager]: * Abstract domain=OctagonDomain [2018-09-19 10:33:37,349 INFO L133 SettingsManager]: * Log string format=TERM [2018-09-19 10:33:37,350 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-09-19 10:33:37,350 INFO L133 SettingsManager]: * Parallel states before merging=1 [2018-09-19 10:33:37,350 INFO L133 SettingsManager]: * Interval Domain=false [2018-09-19 10:33:37,351 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-09-19 10:33:37,351 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-09-19 10:33:37,351 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-09-19 10:33:37,351 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-09-19 10:33:37,351 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-09-19 10:33:37,352 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-09-19 10:33:37,352 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-09-19 10:33:37,352 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-09-19 10:33:37,352 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-09-19 10:33:37,352 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-09-19 10:33:37,353 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-09-19 10:33:37,353 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-09-19 10:33:37,353 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-09-19 10:33:37,353 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-09-19 10:33:37,353 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-09-19 10:33:37,354 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-09-19 10:33:37,354 INFO L133 SettingsManager]: * Trace refinement strategy=TOOTHLESS_TAIPAN [2018-09-19 10:33:37,354 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-09-19 10:33:37,354 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-09-19 10:33:37,354 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-09-19 10:33:37,355 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-09-19 10:33:37,355 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-09-19 10:33:37,399 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-09-19 10:33:37,417 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-09-19 10:33:37,424 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-09-19 10:33:37,426 INFO L271 PluginConnector]: Initializing CDTParser... [2018-09-19 10:33:37,426 INFO L276 PluginConnector]: CDTParser initialized [2018-09-19 10:33:37,427 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem13_label37_true-unreach-call.c [2018-09-19 10:33:37,811 INFO L221 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a6ed45c54/bb3dad72fa3d46ef99c82433e17dc816/FLAG65968eb53 [2018-09-19 10:33:38,317 INFO L277 CDTParser]: Found 1 translation units. [2018-09-19 10:33:38,318 INFO L159 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem13_label37_true-unreach-call.c [2018-09-19 10:33:38,358 INFO L325 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a6ed45c54/bb3dad72fa3d46ef99c82433e17dc816/FLAG65968eb53 [2018-09-19 10:33:38,374 INFO L333 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a6ed45c54/bb3dad72fa3d46ef99c82433e17dc816 [2018-09-19 10:33:38,386 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-09-19 10:33:38,390 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-09-19 10:33:38,391 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-09-19 10:33:38,391 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-09-19 10:33:38,398 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-09-19 10:33:38,399 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.09 10:33:38" (1/1) ... [2018-09-19 10:33:38,403 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@41e23d5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 10:33:38, skipping insertion in model container [2018-09-19 10:33:38,403 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.09 10:33:38" (1/1) ... [2018-09-19 10:33:38,416 INFO L160 ieTranslatorObserver]: Starting translation in SV-COMP mode [2018-09-19 10:33:39,868 INFO L170 PostProcessor]: Settings: Checked method=main [2018-09-19 10:33:39,889 INFO L424 MainDispatcher]: Starting main dispatcher in SV-COMP mode [2018-09-19 10:33:40,635 INFO L170 PostProcessor]: Settings: Checked method=main [2018-09-19 10:33:41,000 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 10:33:41 WrapperNode [2018-09-19 10:33:41,000 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-09-19 10:33:41,001 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-09-19 10:33:41,001 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-09-19 10:33:41,002 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-09-19 10:33:41,012 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 10:33:41" (1/1) ... [2018-09-19 10:33:41,148 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 10:33:41" (1/1) ... [2018-09-19 10:33:41,307 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-09-19 10:33:41,308 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-09-19 10:33:41,308 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-09-19 10:33:41,308 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-09-19 10:33:42,147 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 10:33:41" (1/1) ... [2018-09-19 10:33:42,147 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 10:33:41" (1/1) ... [2018-09-19 10:33:42,187 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 10:33:41" (1/1) ... [2018-09-19 10:33:42,188 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 10:33:41" (1/1) ... [2018-09-19 10:33:42,414 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 10:33:41" (1/1) ... [2018-09-19 10:33:42,460 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 10:33:41" (1/1) ... [2018-09-19 10:33:42,526 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 10:33:41" (1/1) ... [2018-09-19 10:33:42,588 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-09-19 10:33:42,589 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-09-19 10:33:42,589 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-09-19 10:33:42,589 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-09-19 10:33:42,591 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 10:33:41" (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 10:33:42,647 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-09-19 10:33:42,647 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-09-19 10:33:42,648 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output4 [2018-09-19 10:33:42,648 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output4 [2018-09-19 10:33:42,648 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output3 [2018-09-19 10:33:42,648 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output3 [2018-09-19 10:33:42,648 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output2 [2018-09-19 10:33:42,648 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output2 [2018-09-19 10:33:42,649 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2018-09-19 10:33:42,649 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2018-09-19 10:33:42,649 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-09-19 10:33:42,649 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-09-19 10:33:42,649 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-09-19 10:33:42,650 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-09-19 10:33:53,263 INFO L356 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-09-19 10:33:53,264 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.09 10:33:53 BoogieIcfgContainer [2018-09-19 10:33:53,265 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-09-19 10:33:53,266 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-09-19 10:33:53,266 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-09-19 10:33:53,269 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-09-19 10:33:53,269 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.09 10:33:38" (1/3) ... [2018-09-19 10:33:53,270 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6585991e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.09 10:33:53, skipping insertion in model container [2018-09-19 10:33:53,270 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 10:33:41" (2/3) ... [2018-09-19 10:33:53,271 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6585991e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.09 10:33:53, skipping insertion in model container [2018-09-19 10:33:53,271 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.09 10:33:53" (3/3) ... [2018-09-19 10:33:53,273 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem13_label37_true-unreach-call.c [2018-09-19 10:33:53,283 INFO L137 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-09-19 10:33:53,292 INFO L149 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-09-19 10:33:53,357 INFO L130 ementStrategyFactory]: Using default assertion order modulation [2018-09-19 10:33:53,358 INFO L381 AbstractCegarLoop]: Interprodecural is true [2018-09-19 10:33:53,358 INFO L382 AbstractCegarLoop]: Hoare is true [2018-09-19 10:33:53,358 INFO L383 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-09-19 10:33:53,358 INFO L384 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-09-19 10:33:53,359 INFO L385 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-09-19 10:33:53,359 INFO L386 AbstractCegarLoop]: Difference is false [2018-09-19 10:33:53,359 INFO L387 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-09-19 10:33:53,359 INFO L392 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-09-19 10:33:53,417 INFO L276 IsEmpty]: Start isEmpty. Operand 1120 states. [2018-09-19 10:33:53,426 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2018-09-19 10:33:53,426 INFO L368 BasicCegarLoop]: Found error trace [2018-09-19 10:33:53,427 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] [2018-09-19 10:33:53,428 INFO L423 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-19 10:33:53,433 INFO L82 PathProgramCache]: Analyzing trace with hash -1389126997, now seen corresponding path program 1 times [2018-09-19 10:33:53,436 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-19 10:33:53,437 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 62 with the following transitions: [2018-09-19 10:33:53,440 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], [3015], [3017], [4242], [4246], [4252], [4256], [4269], [4270], [4271], [4273] [2018-09-19 10:33:53,513 INFO L148 AbstractInterpreter]: Using domain OctagonDomain [2018-09-19 10:33:53,513 INFO L101 FixpointEngine]: Starting fixpoint engine with domain OctagonDomain (maxUnwinding=3, maxParallelStates=1) [2018-09-19 10:33:55,417 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-19 10:33:55,419 INFO L272 AbstractInterpreter]: Visited 60 different actions 60 times. Never merged. Never widened. Never found a fixpoint. Largest state had 25 variables. [2018-09-19 10:33:55,455 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-19 10:33:56,424 INFO L232 lantSequenceWeakener]: Weakened 59 states. On average, predicates are now at 73.61% of their original sizes. [2018-09-19 10:33:56,424 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-19 10:33:56,778 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-19 10:33:56,780 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-19 10:33:56,780 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-09-19 10:33:56,780 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-19 10:33:56,787 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-09-19 10:33:56,794 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-09-19 10:33:56,795 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2018-09-19 10:33:56,798 INFO L87 Difference]: Start difference. First operand 1120 states. Second operand 6 states. [2018-09-19 10:34:28,899 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-19 10:34:28,899 INFO L93 Difference]: Finished difference Result 3044 states and 5648 transitions. [2018-09-19 10:34:28,902 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-09-19 10:34:28,903 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 61 [2018-09-19 10:34:28,904 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-19 10:34:28,941 INFO L225 Difference]: With dead ends: 3044 [2018-09-19 10:34:28,942 INFO L226 Difference]: Without dead ends: 1922 [2018-09-19 10:34:28,952 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 60 GetRequests, 56 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 10:34:28,977 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1922 states. [2018-09-19 10:34:29,106 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1922 to 1920. [2018-09-19 10:34:29,107 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1920 states. [2018-09-19 10:34:29,118 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1920 states to 1920 states and 2831 transitions. [2018-09-19 10:34:29,121 INFO L78 Accepts]: Start accepts. Automaton has 1920 states and 2831 transitions. Word has length 61 [2018-09-19 10:34:29,123 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-19 10:34:29,123 INFO L480 AbstractCegarLoop]: Abstraction has 1920 states and 2831 transitions. [2018-09-19 10:34:29,123 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-09-19 10:34:29,124 INFO L276 IsEmpty]: Start isEmpty. Operand 1920 states and 2831 transitions. [2018-09-19 10:34:29,138 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 163 [2018-09-19 10:34:29,138 INFO L368 BasicCegarLoop]: Found error trace [2018-09-19 10:34:29,139 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 10:34:29,139 INFO L423 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-19 10:34:29,140 INFO L82 PathProgramCache]: Analyzing trace with hash 1339211256, now seen corresponding path program 1 times [2018-09-19 10:34:29,140 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-19 10:34:29,140 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 163 with the following transitions: [2018-09-19 10:34:29,141 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], [3015], [3017], [3020], [3028], [3036], [3044], [3052], [3060], [3068], [3076], [3084], [3092], [3100], [3108], [3116], [3121], [3125], [3129], [3133], [3137], [3148], [3152], [3156], [3160], [3164], [3168], [3179], [3183], [3187], [3191], [3195], [3199], [3203], [3207], [3218], [3222], [3226], [3230], [3234], [3238], [3242], [3246], [3250], [3254], [3258], [3262], [3265], [4238], [4242], [4246], [4252], [4256], [4258], [4269], [4270], [4271], [4273], [4274] [2018-09-19 10:34:29,153 INFO L148 AbstractInterpreter]: Using domain OctagonDomain [2018-09-19 10:34:29,154 INFO L101 FixpointEngine]: Starting fixpoint engine with domain OctagonDomain (maxUnwinding=3, maxParallelStates=1) [2018-09-19 10:34:41,700 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-19 10:34:41,701 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 10:34:41,709 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-19 10:34:43,276 INFO L232 lantSequenceWeakener]: Weakened 160 states. On average, predicates are now at 71.91% of their original sizes. [2018-09-19 10:34:43,276 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-19 10:34:44,145 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-19 10:34:44,145 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-19 10:34:44,145 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2018-09-19 10:34:44,145 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-19 10:34:44,146 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2018-09-19 10:34:44,147 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2018-09-19 10:34:44,147 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2018-09-19 10:34:44,147 INFO L87 Difference]: Start difference. First operand 1920 states and 2831 transitions. Second operand 10 states. [2018-09-19 10:35:19,092 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-19 10:35:19,093 INFO L93 Difference]: Finished difference Result 3841 states and 6447 transitions. [2018-09-19 10:35:19,093 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2018-09-19 10:35:19,093 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 162 [2018-09-19 10:35:19,095 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-19 10:35:19,110 INFO L225 Difference]: With dead ends: 3841 [2018-09-19 10:35:19,111 INFO L226 Difference]: Without dead ends: 2731 [2018-09-19 10:35:19,118 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 168 GetRequests, 153 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 33 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=68, Invalid=204, Unknown=0, NotChecked=0, Total=272 [2018-09-19 10:35:19,121 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2731 states. [2018-09-19 10:35:19,189 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2731 to 2726. [2018-09-19 10:35:19,189 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2726 states. [2018-09-19 10:35:19,199 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2726 states to 2726 states and 3662 transitions. [2018-09-19 10:35:19,199 INFO L78 Accepts]: Start accepts. Automaton has 2726 states and 3662 transitions. Word has length 162 [2018-09-19 10:35:19,200 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-19 10:35:19,200 INFO L480 AbstractCegarLoop]: Abstraction has 2726 states and 3662 transitions. [2018-09-19 10:35:19,200 INFO L481 AbstractCegarLoop]: Interpolant automaton has 10 states. [2018-09-19 10:35:19,201 INFO L276 IsEmpty]: Start isEmpty. Operand 2726 states and 3662 transitions. [2018-09-19 10:35:19,204 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 192 [2018-09-19 10:35:19,204 INFO L368 BasicCegarLoop]: Found error trace [2018-09-19 10:35:19,205 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 10:35:19,205 INFO L423 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-19 10:35:19,205 INFO L82 PathProgramCache]: Analyzing trace with hash 609976045, now seen corresponding path program 1 times [2018-09-19 10:35:19,205 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-19 10:35:19,206 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 192 with the following transitions: [2018-09-19 10:35:19,206 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], [3015], [3017], [3020], [3028], [3036], [3044], [3052], [3060], [3068], [3076], [3084], [3092], [3100], [3108], [3116], [3121], [3125], [3129], [3133], [3137], [3148], [3152], [3156], [3160], [3164], [3168], [3179], [3183], [3187], [3191], [3195], [3199], [3203], [3207], [3218], [3222], [3226], [3230], [3234], [3238], [3242], [3246], [3250], [3254], [3258], [3262], [3266], [3270], [3274], [3278], [3282], [3286], [3290], [3294], [3305], [3309], [3313], [3317], [3321], [3325], [3329], [3333], [3344], [3355], [3366], [3370], [3374], [3378], [3382], [3386], [3390], [3394], [3398], [3402], [3406], [3409], [4238], [4242], [4246], [4252], [4256], [4258], [4269], [4270], [4271], [4273], [4274] [2018-09-19 10:35:19,212 INFO L148 AbstractInterpreter]: Using domain OctagonDomain [2018-09-19 10:35:19,212 INFO L101 FixpointEngine]: Starting fixpoint engine with domain OctagonDomain (maxUnwinding=3, maxParallelStates=1) [2018-09-19 10:35:28,879 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-09-19 10:35:34,007 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-19 10:35:34,007 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 10:35:34,011 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-19 10:35:35,758 INFO L232 lantSequenceWeakener]: Weakened 189 states. On average, predicates are now at 71.75% of their original sizes. [2018-09-19 10:35:35,758 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-19 10:35:36,414 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-19 10:35:36,414 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-19 10:35:36,415 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2018-09-19 10:35:36,415 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-19 10:35:36,416 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2018-09-19 10:35:36,417 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2018-09-19 10:35:36,417 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=116, Unknown=0, NotChecked=0, Total=156 [2018-09-19 10:35:36,417 INFO L87 Difference]: Start difference. First operand 2726 states and 3662 transitions. Second operand 13 states. [2018-09-19 10:36:27,177 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-19 10:36:27,178 INFO L93 Difference]: Finished difference Result 5542 states and 9047 transitions. [2018-09-19 10:36:27,179 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2018-09-19 10:36:27,179 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 191 [2018-09-19 10:36:27,180 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-19 10:36:27,201 INFO L225 Difference]: With dead ends: 5542 [2018-09-19 10:36:27,202 INFO L226 Difference]: Without dead ends: 4432 [2018-09-19 10:36:27,208 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 203 GetRequests, 179 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 122 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=146, Invalid=504, Unknown=0, NotChecked=0, Total=650 [2018-09-19 10:36:27,213 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4432 states. [2018-09-19 10:36:27,320 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4432 to 4345. [2018-09-19 10:36:27,320 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4345 states. [2018-09-19 10:36:27,332 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4345 states to 4345 states and 5317 transitions. [2018-09-19 10:36:27,333 INFO L78 Accepts]: Start accepts. Automaton has 4345 states and 5317 transitions. Word has length 191 [2018-09-19 10:36:27,334 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-19 10:36:27,334 INFO L480 AbstractCegarLoop]: Abstraction has 4345 states and 5317 transitions. [2018-09-19 10:36:27,334 INFO L481 AbstractCegarLoop]: Interpolant automaton has 13 states. [2018-09-19 10:36:27,334 INFO L276 IsEmpty]: Start isEmpty. Operand 4345 states and 5317 transitions. [2018-09-19 10:36:27,338 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 257 [2018-09-19 10:36:27,338 INFO L368 BasicCegarLoop]: Found error trace [2018-09-19 10:36:27,338 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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 10:36:27,339 INFO L423 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-19 10:36:27,339 INFO L82 PathProgramCache]: Analyzing trace with hash -1825456469, now seen corresponding path program 1 times [2018-09-19 10:36:27,339 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-19 10:36:27,339 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 257 with the following transitions: [2018-09-19 10:36:27,340 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], [3015], [3017], [3020], [3028], [3036], [3044], [3052], [3060], [3068], [3076], [3084], [3092], [3100], [3108], [3116], [3121], [3125], [3129], [3133], [3137], [3148], [3152], [3156], [3160], [3164], [3168], [3179], [3183], [3187], [3191], [3195], [3199], [3203], [3207], [3218], [3222], [3226], [3230], [3234], [3237], [3238], [3242], [3246], [3250], [3254], [3258], [3262], [3265], [4238], [4242], [4246], [4252], [4256], [4258], [4269], [4270], [4271], [4273], [4274] [2018-09-19 10:36:27,347 INFO L148 AbstractInterpreter]: Using domain OctagonDomain [2018-09-19 10:36:27,347 INFO L101 FixpointEngine]: Starting fixpoint engine with domain OctagonDomain (maxUnwinding=3, maxParallelStates=1) [2018-09-19 10:36:33,805 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-09-19 10:36:41,528 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-19 10:36:41,528 INFO L272 AbstractInterpreter]: Visited 109 different actions 423 times. Merged at 7 different actions 20 times. Never widened. Found 4 fixpoints after 1 different actions. Largest state had 26 variables. [2018-09-19 10:36:41,534 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-19 10:36:43,127 INFO L232 lantSequenceWeakener]: Weakened 254 states. On average, predicates are now at 71.55% of their original sizes. [2018-09-19 10:36:43,128 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-19 10:36:43,494 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-19 10:36:43,495 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-19 10:36:43,495 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2018-09-19 10:36:43,495 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-19 10:36:43,496 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2018-09-19 10:36:43,496 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2018-09-19 10:36:43,496 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2018-09-19 10:36:43,496 INFO L87 Difference]: Start difference. First operand 4345 states and 5317 transitions. Second operand 10 states. [2018-09-19 10:37:17,336 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-19 10:37:17,336 INFO L93 Difference]: Finished difference Result 7892 states and 10601 transitions. [2018-09-19 10:37:17,338 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2018-09-19 10:37:17,338 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 256 [2018-09-19 10:37:17,339 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-19 10:37:17,360 INFO L225 Difference]: With dead ends: 7892 [2018-09-19 10:37:17,360 INFO L226 Difference]: Without dead ends: 5163 [2018-09-19 10:37:17,368 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 262 GetRequests, 247 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 10:37:17,373 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5163 states. [2018-09-19 10:37:17,494 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5163 to 5152. [2018-09-19 10:37:17,495 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5152 states. [2018-09-19 10:37:17,505 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5152 states to 5152 states and 6163 transitions. [2018-09-19 10:37:17,506 INFO L78 Accepts]: Start accepts. Automaton has 5152 states and 6163 transitions. Word has length 256 [2018-09-19 10:37:17,507 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-19 10:37:17,507 INFO L480 AbstractCegarLoop]: Abstraction has 5152 states and 6163 transitions. [2018-09-19 10:37:17,507 INFO L481 AbstractCegarLoop]: Interpolant automaton has 10 states. [2018-09-19 10:37:17,507 INFO L276 IsEmpty]: Start isEmpty. Operand 5152 states and 6163 transitions. [2018-09-19 10:37:17,512 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 269 [2018-09-19 10:37:17,513 INFO L368 BasicCegarLoop]: Found error trace [2018-09-19 10:37:17,513 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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 10:37:17,513 INFO L423 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-19 10:37:17,514 INFO L82 PathProgramCache]: Analyzing trace with hash 1370509251, now seen corresponding path program 1 times [2018-09-19 10:37:17,514 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-19 10:37:17,514 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 269 with the following transitions: [2018-09-19 10:37:17,515 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], [3015], [3017], [3020], [3028], [3036], [3044], [3052], [3060], [3068], [3076], [3084], [3092], [3100], [3108], [3116], [3121], [3125], [3129], [3133], [3137], [3148], [3152], [3156], [3160], [3164], [3168], [3179], [3183], [3187], [3191], [3195], [3199], [3203], [3207], [3218], [3222], [3226], [3230], [3234], [3238], [3242], [3246], [3250], [3254], [3258], [3262], [3265], [3266], [3270], [3274], [3278], [3282], [3285], [4238], [4242], [4246], [4252], [4256], [4258], [4269], [4270], [4271], [4273], [4274] [2018-09-19 10:37:17,520 INFO L148 AbstractInterpreter]: Using domain OctagonDomain [2018-09-19 10:37:17,520 INFO L101 FixpointEngine]: Starting fixpoint engine with domain OctagonDomain (maxUnwinding=3, maxParallelStates=1) [2018-09-19 10:37:25,501 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-09-19 10:37:41,812 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-19 10:37:41,812 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 10:37:41,818 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-19 10:37:43,410 INFO L232 lantSequenceWeakener]: Weakened 266 states. On average, predicates are now at 71.51% of their original sizes. [2018-09-19 10:37:43,411 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-19 10:37:43,792 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-19 10:37:43,792 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-19 10:37:43,792 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2018-09-19 10:37:43,792 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-19 10:37:43,793 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2018-09-19 10:37:43,793 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2018-09-19 10:37:43,793 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2018-09-19 10:37:43,794 INFO L87 Difference]: Start difference. First operand 5152 states and 6163 transitions. Second operand 10 states. Received shutdown request... [2018-09-19 10:37:54,426 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2018-09-19 10:37:54,426 WARN L549 AbstractCegarLoop]: Verification canceled [2018-09-19 10:37:54,432 WARN L206 ceAbstractionStarter]: Timeout [2018-09-19 10:37:54,433 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.09 10:37:54 BoogieIcfgContainer [2018-09-19 10:37:54,433 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-09-19 10:37:54,433 INFO L168 Benchmark]: Toolchain (without parser) took 256046.64 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 2.9 GB in the end (delta: -1.5 GB). Peak memory consumption was 1.3 GB. Max. memory is 7.1 GB. [2018-09-19 10:37:54,435 INFO L168 Benchmark]: CDTParser took 0.21 ms. Allocated memory is still 1.5 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-09-19 10:37:54,436 INFO L168 Benchmark]: CACSL2BoogieTranslator took 2609.79 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: 348.8 MB). Peak memory consumption was 348.8 MB. Max. memory is 7.1 GB. [2018-09-19 10:37:54,437 INFO L168 Benchmark]: Boogie Procedure Inliner took 306.28 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: 43.3 MB). Peak memory consumption was 43.3 MB. Max. memory is 7.1 GB. [2018-09-19 10:37:54,437 INFO L168 Benchmark]: Boogie Preprocessor took 1280.96 ms. Allocated memory was 1.5 GB in the beginning and 2.5 GB in the end (delta: 1.0 GB). 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 10:37:54,438 INFO L168 Benchmark]: RCFGBuilder took 10675.70 ms. Allocated memory was 2.5 GB in the beginning and 2.7 GB in the end (delta: 163.6 MB). Free memory was 2.3 GB in the beginning and 2.4 GB in the end (delta: -23.1 MB). Peak memory consumption was 749.6 MB. Max. memory is 7.1 GB. [2018-09-19 10:37:54,439 INFO L168 Benchmark]: TraceAbstraction took 241167.13 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 2.9 GB in the end (delta: -541.1 MB). Peak memory consumption was 1.1 GB. Max. memory is 7.1 GB. [2018-09-19 10:37:54,445 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 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 2609.79 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: 348.8 MB). Peak memory consumption was 348.8 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 306.28 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: 43.3 MB). Peak memory consumption was 43.3 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 1280.96 ms. Allocated memory was 1.5 GB in the beginning and 2.5 GB in the end (delta: 1.0 GB). 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 10675.70 ms. Allocated memory was 2.5 GB in the beginning and 2.7 GB in the end (delta: 163.6 MB). Free memory was 2.3 GB in the beginning and 2.4 GB in the end (delta: -23.1 MB). Peak memory consumption was 749.6 MB. Max. memory is 7.1 GB. * TraceAbstraction took 241167.13 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 2.9 GB in the end (delta: -541.1 MB). Peak memory consumption was 1.1 GB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResultAtElement [Line: 174]: Timeout (TraceAbstraction) Unable to prove that call of __VERIFIER_error() unreachable (line 174). Cancelled while BasicCegarLoop was constructing difference of abstraction (5152states) and FLOYD_HOARE automaton (currently 15 states, 10 states before enhancement), while ReachableStatesComputation was computing reachable states (1906 states constructedinput type IntersectNwa). - StatisticsResult: Ultimate Automizer benchmark data CFG has 7 procedures, 1120 locations, 1 error locations. TIMEOUT Result, 241.0s OverallTime, 5 OverallIterations, 3 TraceHistogramMax, 162.4s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 5189 SDtfs, 14092 SDslu, 2041 SDs, 0 SdLazy, 32940 SolverSat, 4104 SolverUnsat, 2 SolverUnknown, 0 SolverNotchecked, 149.2s Time, PredicateUnifierStatistics: 10 DeclaredPredicates, 967 GetRequests, 894 SyntacticMatches, 0 SemanticMatches, 73 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 222 ImplicationChecksByTransitivity, 4.0s 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, 67.8s AbstIntTime, 5 AbstIntIterations, 5 AbstIntStrong, 0.994967296012312 AbsIntWeakeningRatio, 0.1189710610932476 AbsIntAvgWeakeningVarsNumRemoved, 1033.7631296891748 AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.4s 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_label37_true-unreach-call.c_svcomp-Reach-64bit-ToothlessTaipan_OCT-OldIcfg.epf_AutomizerCInline.xml/Csv-Benchmark-0-2018-09-19_10-37-54-460.csv Written .csv to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/csv/Problem13_label37_true-unreach-call.c_svcomp-Reach-64bit-ToothlessTaipan_OCT-OldIcfg.epf_AutomizerCInline.xml/Csv-TraceAbstractionBenchmarks-0-2018-09-19_10-37-54-460.csv Completed graceful shutdown