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_label14_true-unreach-call.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-69f5bdd-m [2018-09-19 10:30:45,797 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-09-19 10:30:45,799 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-09-19 10:30:45,812 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-09-19 10:30:45,812 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-09-19 10:30:45,813 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-09-19 10:30:45,815 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-09-19 10:30:45,816 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-09-19 10:30:45,818 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-09-19 10:30:45,819 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-09-19 10:30:45,820 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-09-19 10:30:45,820 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-09-19 10:30:45,821 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-09-19 10:30:45,822 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-09-19 10:30:45,823 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-09-19 10:30:45,824 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-09-19 10:30:45,825 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-09-19 10:30:45,827 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-09-19 10:30:45,832 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-09-19 10:30:45,833 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-09-19 10:30:45,839 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-09-19 10:30:45,841 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-09-19 10:30:45,845 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-09-19 10:30:45,845 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-09-19 10:30:45,846 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-09-19 10:30:45,847 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-09-19 10:30:45,849 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-09-19 10:30:45,850 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-09-19 10:30:45,851 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-09-19 10:30:45,852 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-09-19 10:30:45,855 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-09-19 10:30:45,856 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-09-19 10:30:45,856 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-09-19 10:30:45,857 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-09-19 10:30:45,857 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-09-19 10:30:45,858 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-09-19 10:30:45,860 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/ai/taipanbench/svcomp-Reach-64bit-ToothlessTaipan_OCT-OldIcfg.epf [2018-09-19 10:30:45,891 INFO L110 SettingsManager]: Loading preferences was successful [2018-09-19 10:30:45,891 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-09-19 10:30:45,892 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-09-19 10:30:45,892 INFO L133 SettingsManager]: * User list type=DISABLED [2018-09-19 10:30:45,892 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-09-19 10:30:45,893 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-09-19 10:30:45,893 INFO L133 SettingsManager]: * Congruence Domain=false [2018-09-19 10:30:45,893 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-09-19 10:30:45,893 INFO L133 SettingsManager]: * Abstract domain=OctagonDomain [2018-09-19 10:30:45,893 INFO L133 SettingsManager]: * Log string format=TERM [2018-09-19 10:30:45,893 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-09-19 10:30:45,894 INFO L133 SettingsManager]: * Parallel states before merging=1 [2018-09-19 10:30:45,894 INFO L133 SettingsManager]: * Interval Domain=false [2018-09-19 10:30:45,895 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-09-19 10:30:45,895 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-09-19 10:30:45,895 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-09-19 10:30:45,895 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-09-19 10:30:45,895 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-09-19 10:30:45,896 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-09-19 10:30:45,897 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-09-19 10:30:45,897 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-09-19 10:30:45,897 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-09-19 10:30:45,897 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-09-19 10:30:45,897 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-09-19 10:30:45,898 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-09-19 10:30:45,898 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-09-19 10:30:45,898 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-09-19 10:30:45,898 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-09-19 10:30:45,898 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-09-19 10:30:45,899 INFO L133 SettingsManager]: * Trace refinement strategy=TOOTHLESS_TAIPAN [2018-09-19 10:30:45,899 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-09-19 10:30:45,899 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-09-19 10:30:45,899 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-09-19 10:30:45,899 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-09-19 10:30:45,899 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-09-19 10:30:45,971 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-09-19 10:30:45,989 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-09-19 10:30:45,996 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-09-19 10:30:45,997 INFO L271 PluginConnector]: Initializing CDTParser... [2018-09-19 10:30:45,998 INFO L276 PluginConnector]: CDTParser initialized [2018-09-19 10:30:45,999 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem13_label14_true-unreach-call.c [2018-09-19 10:30:46,367 INFO L221 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/340e46433/e00ed779cd2d4728821d6bbbaf21c4be/FLAG23789d891 [2018-09-19 10:30:46,904 INFO L277 CDTParser]: Found 1 translation units. [2018-09-19 10:30:46,905 INFO L159 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem13_label14_true-unreach-call.c [2018-09-19 10:30:46,945 INFO L325 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/340e46433/e00ed779cd2d4728821d6bbbaf21c4be/FLAG23789d891 [2018-09-19 10:30:46,966 INFO L333 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/340e46433/e00ed779cd2d4728821d6bbbaf21c4be [2018-09-19 10:30:46,978 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-09-19 10:30:46,983 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-09-19 10:30:46,984 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-09-19 10:30:46,984 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-09-19 10:30:46,993 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-09-19 10:30:46,994 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.09 10:30:46" (1/1) ... [2018-09-19 10:30:46,998 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@144296d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 10:30:46, skipping insertion in model container [2018-09-19 10:30:46,998 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.09 10:30:46" (1/1) ... [2018-09-19 10:30:47,010 INFO L160 ieTranslatorObserver]: Starting translation in SV-COMP mode [2018-09-19 10:30:48,471 INFO L170 PostProcessor]: Settings: Checked method=main [2018-09-19 10:30:48,490 INFO L424 MainDispatcher]: Starting main dispatcher in SV-COMP mode [2018-09-19 10:30:49,129 INFO L170 PostProcessor]: Settings: Checked method=main [2018-09-19 10:30:49,524 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 10:30:49 WrapperNode [2018-09-19 10:30:49,525 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-09-19 10:30:49,526 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-09-19 10:30:49,526 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-09-19 10:30:49,526 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-09-19 10:30:49,536 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 10:30:49" (1/1) ... [2018-09-19 10:30:49,663 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 10:30:49" (1/1) ... [2018-09-19 10:30:49,828 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-09-19 10:30:49,828 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-09-19 10:30:49,829 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-09-19 10:30:49,829 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-09-19 10:30:50,668 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 10:30:49" (1/1) ... [2018-09-19 10:30:50,669 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 10:30:49" (1/1) ... [2018-09-19 10:30:50,733 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 10:30:49" (1/1) ... [2018-09-19 10:30:50,733 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 10:30:49" (1/1) ... [2018-09-19 10:30:50,969 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 10:30:49" (1/1) ... [2018-09-19 10:30:51,007 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 10:30:49" (1/1) ... [2018-09-19 10:30:51,072 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 10:30:49" (1/1) ... [2018-09-19 10:30:51,132 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-09-19 10:30:51,132 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-09-19 10:30:51,133 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-09-19 10:30:51,133 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-09-19 10:30:51,134 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 10:30:49" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-09-19 10:30:51,205 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-09-19 10:30:51,205 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-09-19 10:30:51,206 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output4 [2018-09-19 10:30:51,206 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output4 [2018-09-19 10:30:51,206 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output3 [2018-09-19 10:30:51,206 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output3 [2018-09-19 10:30:51,206 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output2 [2018-09-19 10:30:51,207 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output2 [2018-09-19 10:30:51,207 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2018-09-19 10:30:51,207 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2018-09-19 10:30:51,207 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-09-19 10:30:51,207 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-09-19 10:30:51,208 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-09-19 10:30:51,208 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-09-19 10:31:01,175 INFO L356 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-09-19 10:31:01,176 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.09 10:31:01 BoogieIcfgContainer [2018-09-19 10:31:01,176 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-09-19 10:31:01,177 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-09-19 10:31:01,177 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-09-19 10:31:01,180 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-09-19 10:31:01,181 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.09 10:30:46" (1/3) ... [2018-09-19 10:31:01,182 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@23ed9468 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.09 10:31:01, skipping insertion in model container [2018-09-19 10:31:01,182 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 10:30:49" (2/3) ... [2018-09-19 10:31:01,182 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@23ed9468 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.09 10:31:01, skipping insertion in model container [2018-09-19 10:31:01,182 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.09 10:31:01" (3/3) ... [2018-09-19 10:31:01,184 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem13_label14_true-unreach-call.c [2018-09-19 10:31:01,194 INFO L137 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-09-19 10:31:01,206 INFO L149 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-09-19 10:31:01,277 INFO L130 ementStrategyFactory]: Using default assertion order modulation [2018-09-19 10:31:01,278 INFO L381 AbstractCegarLoop]: Interprodecural is true [2018-09-19 10:31:01,278 INFO L382 AbstractCegarLoop]: Hoare is true [2018-09-19 10:31:01,278 INFO L383 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-09-19 10:31:01,278 INFO L384 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-09-19 10:31:01,278 INFO L385 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-09-19 10:31:01,279 INFO L386 AbstractCegarLoop]: Difference is false [2018-09-19 10:31:01,279 INFO L387 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-09-19 10:31:01,279 INFO L392 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-09-19 10:31:01,341 INFO L276 IsEmpty]: Start isEmpty. Operand 1120 states. [2018-09-19 10:31:01,352 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2018-09-19 10:31:01,352 INFO L368 BasicCegarLoop]: Found error trace [2018-09-19 10:31:01,354 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] [2018-09-19 10:31:01,355 INFO L423 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-19 10:31:01,361 INFO L82 PathProgramCache]: Analyzing trace with hash 963614956, now seen corresponding path program 1 times [2018-09-19 10:31:01,363 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-19 10:31:01,364 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 49 with the following transitions: [2018-09-19 10:31:01,367 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], [2911], [2913], [4242], [4246], [4252], [4256], [4269], [4270], [4271], [4273] [2018-09-19 10:31:01,447 INFO L148 AbstractInterpreter]: Using domain OctagonDomain [2018-09-19 10:31:01,447 INFO L101 FixpointEngine]: Starting fixpoint engine with domain OctagonDomain (maxUnwinding=3, maxParallelStates=1) [2018-09-19 10:31:02,989 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-19 10:31:02,990 INFO L272 AbstractInterpreter]: Visited 47 different actions 47 times. Never merged. Never widened. Never found a fixpoint. Largest state had 25 variables. [2018-09-19 10:31:03,023 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-19 10:31:03,704 INFO L232 lantSequenceWeakener]: Weakened 46 states. On average, predicates are now at 73.22% of their original sizes. [2018-09-19 10:31:03,704 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-19 10:31:04,046 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-19 10:31:04,047 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-19 10:31:04,048 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-09-19 10:31:04,048 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-19 10:31:04,055 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-09-19 10:31:04,061 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-09-19 10:31:04,062 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2018-09-19 10:31:04,065 INFO L87 Difference]: Start difference. First operand 1120 states. Second operand 6 states. [2018-09-19 10:31:26,972 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-19 10:31:26,973 INFO L93 Difference]: Finished difference Result 3044 states and 5648 transitions. [2018-09-19 10:31:26,975 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-09-19 10:31:26,976 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 48 [2018-09-19 10:31:26,977 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-19 10:31:27,007 INFO L225 Difference]: With dead ends: 3044 [2018-09-19 10:31:27,008 INFO L226 Difference]: Without dead ends: 1922 [2018-09-19 10:31:27,018 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 47 GetRequests, 43 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2018-09-19 10:31:27,041 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1922 states. [2018-09-19 10:31:27,168 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1922 to 1920. [2018-09-19 10:31:27,169 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1920 states. [2018-09-19 10:31:27,180 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1920 states to 1920 states and 2831 transitions. [2018-09-19 10:31:27,182 INFO L78 Accepts]: Start accepts. Automaton has 1920 states and 2831 transitions. Word has length 48 [2018-09-19 10:31:27,183 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-19 10:31:27,183 INFO L480 AbstractCegarLoop]: Abstraction has 1920 states and 2831 transitions. [2018-09-19 10:31:27,183 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-09-19 10:31:27,183 INFO L276 IsEmpty]: Start isEmpty. Operand 1920 states and 2831 transitions. [2018-09-19 10:31:27,190 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 150 [2018-09-19 10:31:27,190 INFO L368 BasicCegarLoop]: Found error trace [2018-09-19 10:31:27,191 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-19 10:31:27,191 INFO L423 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-19 10:31:27,191 INFO L82 PathProgramCache]: Analyzing trace with hash -153475968, now seen corresponding path program 1 times [2018-09-19 10:31:27,191 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-19 10:31:27,192 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 150 with the following transitions: [2018-09-19 10:31:27,192 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], [2911], [2913], [2916], [2924], [2932], [2940], [2948], [2956], [2964], [2972], [2980], [2988], [2996], [3004], [3012], [3020], [3028], [3036], [3044], [3052], [3060], [3068], [3076], [3084], [3092], [3100], [3108], [3116], [3121], [3125], [3129], [3133], [3137], [3148], [3152], [3156], [3160], [3164], [3168], [3179], [3183], [3187], [3191], [3195], [3199], [3203], [3207], [3218], [3222], [3226], [3230], [3234], [3238], [3242], [3246], [3250], [3254], [3258], [3262], [3265], [4238], [4242], [4246], [4252], [4256], [4258], [4269], [4270], [4271], [4273], [4274] [2018-09-19 10:31:27,201 INFO L148 AbstractInterpreter]: Using domain OctagonDomain [2018-09-19 10:31:27,201 INFO L101 FixpointEngine]: Starting fixpoint engine with domain OctagonDomain (maxUnwinding=3, maxParallelStates=1) [2018-09-19 10:31:38,877 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-19 10:31:38,878 INFO L272 AbstractInterpreter]: Visited 108 different actions 311 times. Merged at 5 different actions 9 times. Never widened. Found 1 fixpoints after 1 different actions. Largest state had 26 variables. [2018-09-19 10:31:38,889 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-19 10:31:40,404 INFO L232 lantSequenceWeakener]: Weakened 147 states. On average, predicates are now at 71.64% of their original sizes. [2018-09-19 10:31:40,404 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-19 10:31:40,929 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-19 10:31:40,929 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-19 10:31:40,929 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2018-09-19 10:31:40,930 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-19 10:31:40,931 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2018-09-19 10:31:40,931 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2018-09-19 10:31:40,931 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2018-09-19 10:31:40,932 INFO L87 Difference]: Start difference. First operand 1920 states and 2831 transitions. Second operand 10 states. [2018-09-19 10:32:34,314 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-19 10:32:34,315 INFO L93 Difference]: Finished difference Result 3841 states and 6447 transitions. [2018-09-19 10:32:34,317 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2018-09-19 10:32:34,317 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 149 [2018-09-19 10:32:34,318 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-19 10:32:34,331 INFO L225 Difference]: With dead ends: 3841 [2018-09-19 10:32:34,331 INFO L226 Difference]: Without dead ends: 2731 [2018-09-19 10:32:34,336 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 155 GetRequests, 140 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 33 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=68, Invalid=204, Unknown=0, NotChecked=0, Total=272 [2018-09-19 10:32:34,340 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2731 states. [2018-09-19 10:32:34,408 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2731 to 2726. [2018-09-19 10:32:34,408 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2726 states. [2018-09-19 10:32:34,418 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2726 states to 2726 states and 3662 transitions. [2018-09-19 10:32:34,418 INFO L78 Accepts]: Start accepts. Automaton has 2726 states and 3662 transitions. Word has length 149 [2018-09-19 10:32:34,419 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-19 10:32:34,419 INFO L480 AbstractCegarLoop]: Abstraction has 2726 states and 3662 transitions. [2018-09-19 10:32:34,419 INFO L481 AbstractCegarLoop]: Interpolant automaton has 10 states. [2018-09-19 10:32:34,420 INFO L276 IsEmpty]: Start isEmpty. Operand 2726 states and 3662 transitions. [2018-09-19 10:32:34,423 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 179 [2018-09-19 10:32:34,423 INFO L368 BasicCegarLoop]: Found error trace [2018-09-19 10:32:34,424 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-19 10:32:34,424 INFO L423 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-19 10:32:34,425 INFO L82 PathProgramCache]: Analyzing trace with hash -1551395575, now seen corresponding path program 1 times [2018-09-19 10:32:34,425 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-19 10:32:34,425 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 179 with the following transitions: [2018-09-19 10:32:34,426 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], [2911], [2913], [2916], [2924], [2932], [2940], [2948], [2956], [2964], [2972], [2980], [2988], [2996], [3004], [3012], [3020], [3028], [3036], [3044], [3052], [3060], [3068], [3076], [3084], [3092], [3100], [3108], [3116], [3121], [3125], [3129], [3133], [3137], [3148], [3152], [3156], [3160], [3164], [3168], [3179], [3183], [3187], [3191], [3195], [3199], [3203], [3207], [3218], [3222], [3226], [3230], [3234], [3238], [3242], [3246], [3250], [3254], [3258], [3262], [3266], [3270], [3274], [3278], [3282], [3286], [3290], [3294], [3305], [3309], [3313], [3317], [3321], [3325], [3329], [3333], [3344], [3355], [3366], [3370], [3374], [3378], [3382], [3386], [3390], [3394], [3398], [3402], [3406], [3409], [4238], [4242], [4246], [4252], [4256], [4258], [4269], [4270], [4271], [4273], [4274] [2018-09-19 10:32:34,431 INFO L148 AbstractInterpreter]: Using domain OctagonDomain [2018-09-19 10:32:34,432 INFO L101 FixpointEngine]: Starting fixpoint engine with domain OctagonDomain (maxUnwinding=3, maxParallelStates=1) [2018-09-19 10:32:43,997 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-09-19 10:32:48,928 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-19 10:32:48,928 INFO L272 AbstractInterpreter]: Visited 137 different actions 398 times. Merged at 5 different actions 9 times. Never widened. Found 1 fixpoints after 1 different actions. Largest state had 26 variables. [2018-09-19 10:32:48,937 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-19 10:32:50,525 INFO L232 lantSequenceWeakener]: Weakened 176 states. On average, predicates are now at 71.5% of their original sizes. [2018-09-19 10:32:50,526 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-19 10:32:51,157 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-19 10:32:51,157 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-19 10:32:51,158 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2018-09-19 10:32:51,158 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-19 10:32:51,159 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2018-09-19 10:32:51,159 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2018-09-19 10:32:51,159 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=98, Unknown=0, NotChecked=0, Total=132 [2018-09-19 10:32:51,160 INFO L87 Difference]: Start difference. First operand 2726 states and 3662 transitions. Second operand 12 states. [2018-09-19 10:34:03,194 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-19 10:34:03,194 INFO L93 Difference]: Finished difference Result 4973 states and 7924 transitions. [2018-09-19 10:34:03,195 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2018-09-19 10:34:03,195 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 178 [2018-09-19 10:34:03,197 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-19 10:34:03,212 INFO L225 Difference]: With dead ends: 4973 [2018-09-19 10:34:03,212 INFO L226 Difference]: Without dead ends: 3863 [2018-09-19 10:34:03,217 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 187 GetRequests, 167 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 76 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=108, Invalid=354, Unknown=0, NotChecked=0, Total=462 [2018-09-19 10:34:03,220 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3863 states. [2018-09-19 10:34:03,300 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3863 to 3540. [2018-09-19 10:34:03,301 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3540 states. [2018-09-19 10:34:03,310 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3540 states to 3540 states and 4496 transitions. [2018-09-19 10:34:03,310 INFO L78 Accepts]: Start accepts. Automaton has 3540 states and 4496 transitions. Word has length 178 [2018-09-19 10:34:03,311 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-19 10:34:03,311 INFO L480 AbstractCegarLoop]: Abstraction has 3540 states and 4496 transitions. [2018-09-19 10:34:03,311 INFO L481 AbstractCegarLoop]: Interpolant automaton has 12 states. [2018-09-19 10:34:03,311 INFO L276 IsEmpty]: Start isEmpty. Operand 3540 states and 4496 transitions. [2018-09-19 10:34:03,315 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 244 [2018-09-19 10:34:03,316 INFO L368 BasicCegarLoop]: Found error trace [2018-09-19 10:34:03,316 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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 10:34:03,316 INFO L423 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-19 10:34:03,317 INFO L82 PathProgramCache]: Analyzing trace with hash 696108108, now seen corresponding path program 1 times [2018-09-19 10:34:03,317 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-19 10:34:03,317 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 244 with the following transitions: [2018-09-19 10:34:03,317 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], [2911], [2913], [2916], [2924], [2932], [2940], [2948], [2956], [2964], [2972], [2980], [2988], [2996], [3004], [3012], [3020], [3028], [3036], [3044], [3052], [3060], [3068], [3076], [3084], [3092], [3100], [3108], [3116], [3121], [3125], [3129], [3133], [3137], [3148], [3152], [3156], [3160], [3164], [3168], [3179], [3183], [3187], [3191], [3195], [3199], [3203], [3207], [3218], [3222], [3226], [3230], [3234], [3237], [3238], [3242], [3246], [3250], [3254], [3258], [3262], [3265], [4238], [4242], [4246], [4252], [4256], [4258], [4269], [4270], [4271], [4273], [4274] [2018-09-19 10:34:03,323 INFO L148 AbstractInterpreter]: Using domain OctagonDomain [2018-09-19 10:34:03,323 INFO L101 FixpointEngine]: Starting fixpoint engine with domain OctagonDomain (maxUnwinding=3, maxParallelStates=1) [2018-09-19 10:34:11,227 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-09-19 10:34:19,033 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-19 10:34:19,033 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 10:34:19,044 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-19 10:34:20,718 INFO L232 lantSequenceWeakener]: Weakened 241 states. On average, predicates are now at 71.36% of their original sizes. [2018-09-19 10:34:20,718 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-19 10:34:21,094 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-19 10:34:21,094 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-19 10:34:21,094 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2018-09-19 10:34:21,094 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-19 10:34:21,095 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2018-09-19 10:34:21,095 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2018-09-19 10:34:21,095 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2018-09-19 10:34:21,096 INFO L87 Difference]: Start difference. First operand 3540 states and 4496 transitions. Second operand 10 states. Received shutdown request... [2018-09-19 10:35:06,037 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2018-09-19 10:35:06,038 WARN L549 AbstractCegarLoop]: Verification canceled [2018-09-19 10:35:06,044 WARN L206 ceAbstractionStarter]: Timeout [2018-09-19 10:35:06,044 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.09 10:35:06 BoogieIcfgContainer [2018-09-19 10:35:06,045 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-09-19 10:35:06,045 INFO L168 Benchmark]: Toolchain (without parser) took 259066.94 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 2.1 GB in the end (delta: -695.9 MB). Peak memory consumption was 2.1 GB. Max. memory is 7.1 GB. [2018-09-19 10:35:06,047 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. [2018-09-19 10:35:06,048 INFO L168 Benchmark]: CACSL2BoogieTranslator took 2541.28 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.1 GB in the end (delta: 339.3 MB). Peak memory consumption was 339.3 MB. Max. memory is 7.1 GB. [2018-09-19 10:35:06,048 INFO L168 Benchmark]: Boogie Procedure Inliner took 302.25 ms. Allocated memory is still 1.5 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 42.3 MB). Peak memory consumption was 42.3 MB. Max. memory is 7.1 GB. [2018-09-19 10:35:06,049 INFO L168 Benchmark]: Boogie Preprocessor took 1303.60 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 10:35:06,050 INFO L168 Benchmark]: RCFGBuilder took 10043.65 ms. Allocated memory was 2.5 GB in the beginning and 2.7 GB in the end (delta: 158.3 MB). Free memory was 2.3 GB in the beginning and 2.3 GB in the end (delta: -432.0 kB). Peak memory consumption was 750.6 MB. Max. memory is 7.1 GB. [2018-09-19 10:35:06,051 INFO L168 Benchmark]: TraceAbstraction took 244867.80 ms. Allocated memory was 2.7 GB in the beginning and 4.3 GB in the end (delta: 1.6 GB). Free memory was 2.3 GB in the beginning and 2.1 GB in the end (delta: 239.3 MB). Peak memory consumption was 1.9 GB. Max. memory is 7.1 GB. [2018-09-19 10:35:06,056 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 2541.28 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 302.25 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 1303.60 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 10043.65 ms. Allocated memory was 2.5 GB in the beginning and 2.7 GB in the end (delta: 158.3 MB). Free memory was 2.3 GB in the beginning and 2.3 GB in the end (delta: -432.0 kB). Peak memory consumption was 750.6 MB. Max. memory is 7.1 GB. * TraceAbstraction took 244867.80 ms. Allocated memory was 2.7 GB in the beginning and 4.3 GB in the end (delta: 1.6 GB). Free memory was 2.3 GB in the beginning and 2.1 GB in the end (delta: 239.3 MB). Peak memory consumption was 1.9 GB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResultAtElement [Line: 135]: Timeout (TraceAbstraction) Unable to prove that call of __VERIFIER_error() unreachable (line 135). Cancelled while BasicCegarLoop was constructing difference of abstraction (3540states) and FLOYD_HOARE automaton (currently 14 states, 10 states before enhancement), while ReachableStatesComputation was computing reachable states (4522 states constructedinput type IntersectNwa). - StatisticsResult: Ultimate Automizer benchmark data CFG has 7 procedures, 1120 locations, 1 error locations. TIMEOUT Result, 244.7s OverallTime, 4 OverallIterations, 3 TraceHistogramMax, 193.3s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 4631 SDtfs, 8530 SDslu, 4561 SDs, 0 SdLazy, 47843 SolverSat, 3195 SolverUnsat, 1 SolverUnknown, 0 SolverNotchecked, 178.9s Time, PredicateUnifierStatistics: 8 DeclaredPredicates, 638 GetRequests, 584 SyntacticMatches, 0 SemanticMatches, 54 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 143 ImplicationChecksByTransitivity, 2.8s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=3540occurred in iteration=3, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 43.5s AbstIntTime, 4 AbstIntIterations, 4 AbstIntStrong, 0.9941867117681445 AbsIntWeakeningRatio, 0.13680781758957655 AbsIntAvgWeakeningVarsNumRemoved, 1027.114006514658 AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.3s AutomataMinimizationTime, 3 MinimizatonAttempts, 330 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_label14_true-unreach-call.c_svcomp-Reach-64bit-ToothlessTaipan_OCT-OldIcfg.epf_AutomizerCInline.xml/Csv-Benchmark-0-2018-09-19_10-35-06-072.csv Written .csv to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/csv/Problem13_label14_true-unreach-call.c_svcomp-Reach-64bit-ToothlessTaipan_OCT-OldIcfg.epf_AutomizerCInline.xml/Csv-TraceAbstractionBenchmarks-0-2018-09-19_10-35-06-072.csv Completed graceful shutdown