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/Problem02_label00_true-unreach-call_false-termination.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-69f5bdd-m [2018-09-19 08:15:36,814 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-09-19 08:15:36,817 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-09-19 08:15:36,834 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-09-19 08:15:36,835 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-09-19 08:15:36,837 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-09-19 08:15:36,839 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-09-19 08:15:36,842 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-09-19 08:15:36,844 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-09-19 08:15:36,845 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-09-19 08:15:36,847 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-09-19 08:15:36,847 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-09-19 08:15:36,848 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-09-19 08:15:36,849 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-09-19 08:15:36,851 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-09-19 08:15:36,852 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-09-19 08:15:36,853 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-09-19 08:15:36,855 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-09-19 08:15:36,857 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-09-19 08:15:36,859 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-09-19 08:15:36,860 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-09-19 08:15:36,862 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-09-19 08:15:36,864 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2018-09-19 08:15:36,879 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 08:15:36,898 INFO L110 SettingsManager]: Loading preferences was successful [2018-09-19 08:15:36,898 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-09-19 08:15:36,899 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-09-19 08:15:36,899 INFO L133 SettingsManager]: * User list type=DISABLED [2018-09-19 08:15:36,899 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-09-19 08:15:36,900 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-09-19 08:15:36,900 INFO L133 SettingsManager]: * Congruence Domain=false [2018-09-19 08:15:36,900 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-09-19 08:15:36,900 INFO L133 SettingsManager]: * Abstract domain=OctagonDomain [2018-09-19 08:15:36,901 INFO L133 SettingsManager]: * Log string format=TERM [2018-09-19 08:15:36,901 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-09-19 08:15:36,901 INFO L133 SettingsManager]: * Parallel states before merging=1 [2018-09-19 08:15:36,901 INFO L133 SettingsManager]: * Interval Domain=false [2018-09-19 08:15:36,902 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-09-19 08:15:36,902 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-09-19 08:15:36,903 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-09-19 08:15:36,903 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-09-19 08:15:36,903 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-09-19 08:15:36,903 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-09-19 08:15:36,903 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-09-19 08:15:36,904 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-09-19 08:15:36,904 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-09-19 08:15:36,904 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-09-19 08:15:36,904 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-09-19 08:15:36,905 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-09-19 08:15:36,905 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-09-19 08:15:36,905 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-09-19 08:15:36,905 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-09-19 08:15:36,905 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-09-19 08:15:36,906 INFO L133 SettingsManager]: * Trace refinement strategy=TOOTHLESS_TAIPAN [2018-09-19 08:15:36,906 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-09-19 08:15:36,906 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-09-19 08:15:36,906 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-09-19 08:15:36,907 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-09-19 08:15:36,907 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-09-19 08:15:36,953 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-09-19 08:15:36,967 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-09-19 08:15:36,971 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-09-19 08:15:36,973 INFO L271 PluginConnector]: Initializing CDTParser... [2018-09-19 08:15:36,974 INFO L276 PluginConnector]: CDTParser initialized [2018-09-19 08:15:36,975 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem02_label00_true-unreach-call_false-termination.c [2018-09-19 08:15:37,358 INFO L221 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/77902f326/01356a4fef414c3c94ee5ccf4ec6be4b/FLAG33e14abe3 [2018-09-19 08:15:37,661 INFO L277 CDTParser]: Found 1 translation units. [2018-09-19 08:15:37,662 INFO L159 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem02_label00_true-unreach-call_false-termination.c [2018-09-19 08:15:37,689 INFO L325 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/77902f326/01356a4fef414c3c94ee5ccf4ec6be4b/FLAG33e14abe3 [2018-09-19 08:15:37,705 INFO L333 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/77902f326/01356a4fef414c3c94ee5ccf4ec6be4b [2018-09-19 08:15:37,715 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-09-19 08:15:37,719 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-09-19 08:15:37,721 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-09-19 08:15:37,721 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-09-19 08:15:37,728 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-09-19 08:15:37,730 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.09 08:15:37" (1/1) ... [2018-09-19 08:15:37,733 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6cedc78 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 08:15:37, skipping insertion in model container [2018-09-19 08:15:37,733 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.09 08:15:37" (1/1) ... [2018-09-19 08:15:37,746 INFO L160 ieTranslatorObserver]: Starting translation in SV-COMP mode [2018-09-19 08:15:38,256 INFO L170 PostProcessor]: Settings: Checked method=main [2018-09-19 08:15:38,282 INFO L424 MainDispatcher]: Starting main dispatcher in SV-COMP mode [2018-09-19 08:15:38,411 INFO L170 PostProcessor]: Settings: Checked method=main [2018-09-19 08:15:38,456 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 08:15:38 WrapperNode [2018-09-19 08:15:38,457 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-09-19 08:15:38,458 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-09-19 08:15:38,458 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-09-19 08:15:38,458 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-09-19 08:15:38,469 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 08:15:38" (1/1) ... [2018-09-19 08:15:38,491 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 08:15:38" (1/1) ... [2018-09-19 08:15:38,552 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-09-19 08:15:38,553 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-09-19 08:15:38,553 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-09-19 08:15:38,553 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-09-19 08:15:38,693 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 08:15:38" (1/1) ... [2018-09-19 08:15:38,693 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 08:15:38" (1/1) ... [2018-09-19 08:15:38,699 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 08:15:38" (1/1) ... [2018-09-19 08:15:38,699 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 08:15:38" (1/1) ... [2018-09-19 08:15:38,738 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 08:15:38" (1/1) ... [2018-09-19 08:15:38,765 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 08:15:38" (1/1) ... [2018-09-19 08:15:38,777 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 08:15:38" (1/1) ... [2018-09-19 08:15:38,793 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-09-19 08:15:38,793 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-09-19 08:15:38,794 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-09-19 08:15:38,794 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-09-19 08:15:38,795 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 08:15:38" (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 08:15:38,873 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-09-19 08:15:38,874 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-09-19 08:15:38,874 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2018-09-19 08:15:38,874 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2018-09-19 08:15:38,874 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-09-19 08:15:38,875 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-09-19 08:15:38,875 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-09-19 08:15:38,875 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-09-19 08:15:42,439 INFO L356 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-09-19 08:15:42,439 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.09 08:15:42 BoogieIcfgContainer [2018-09-19 08:15:42,440 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-09-19 08:15:42,441 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-09-19 08:15:42,443 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-09-19 08:15:42,447 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-09-19 08:15:42,448 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.09 08:15:37" (1/3) ... [2018-09-19 08:15:42,449 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6e79933f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.09 08:15:42, skipping insertion in model container [2018-09-19 08:15:42,449 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 08:15:38" (2/3) ... [2018-09-19 08:15:42,449 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6e79933f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.09 08:15:42, skipping insertion in model container [2018-09-19 08:15:42,449 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.09 08:15:42" (3/3) ... [2018-09-19 08:15:42,453 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem02_label00_true-unreach-call_false-termination.c [2018-09-19 08:15:42,462 INFO L137 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-09-19 08:15:42,472 INFO L149 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-09-19 08:15:42,541 INFO L130 ementStrategyFactory]: Using default assertion order modulation [2018-09-19 08:15:42,542 INFO L381 AbstractCegarLoop]: Interprodecural is true [2018-09-19 08:15:42,543 INFO L382 AbstractCegarLoop]: Hoare is true [2018-09-19 08:15:42,543 INFO L383 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-09-19 08:15:42,543 INFO L384 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-09-19 08:15:42,543 INFO L385 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-09-19 08:15:42,543 INFO L386 AbstractCegarLoop]: Difference is false [2018-09-19 08:15:42,544 INFO L387 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-09-19 08:15:42,544 INFO L392 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-09-19 08:15:42,572 INFO L276 IsEmpty]: Start isEmpty. Operand 237 states. [2018-09-19 08:15:42,589 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 123 [2018-09-19 08:15:42,590 INFO L368 BasicCegarLoop]: Found error trace [2018-09-19 08:15:42,591 INFO L376 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 08:15:42,593 INFO L423 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-19 08:15:42,598 INFO L82 PathProgramCache]: Analyzing trace with hash 117916544, now seen corresponding path program 1 times [2018-09-19 08:15:42,600 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-19 08:15:42,601 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 123 with the following transitions: [2018-09-19 08:15:42,604 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [6], [10], [14], [18], [22], [26], [30], [34], [38], [42], [53], [64], [68], [72], [76], [80], [84], [88], [92], [96], [100], [104], [108], [112], [116], [120], [124], [128], [132], [136], [140], [144], [148], [152], [156], [160], [171], [175], [179], [183], [187], [191], [195], [199], [210], [214], [218], [222], [233], [237], [241], [245], [249], [253], [257], [268], [272], [283], [287], [298], [309], [313], [317], [321], [325], [329], [333], [344], [348], [352], [356], [360], [364], [368], [372], [379], [387], [395], [403], [411], [419], [427], [435], [443], [451], [459], [467], [475], [483], [491], [499], [507], [515], [523], [531], [539], [547], [555], [563], [571], [579], [587], [595], [603], [611], [619], [627], [635], [643], [647], [649], [867], [871], [877], [881], [888], [889], [890], [892] [2018-09-19 08:15:42,677 INFO L148 AbstractInterpreter]: Using domain OctagonDomain [2018-09-19 08:15:42,677 INFO L101 FixpointEngine]: Starting fixpoint engine with domain OctagonDomain (maxUnwinding=3, maxParallelStates=1) [2018-09-19 08:16:00,408 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-19 08:16:00,410 INFO L272 AbstractInterpreter]: Visited 121 different actions 121 times. Never merged. Never widened. Never found a fixpoint. Largest state had 37 variables. [2018-09-19 08:16:00,445 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-19 08:16:03,392 INFO L232 lantSequenceWeakener]: Weakened 120 states. On average, predicates are now at 81.18% of their original sizes. [2018-09-19 08:16:03,392 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-19 08:16:04,305 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-19 08:16:04,308 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-19 08:16:04,308 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2018-09-19 08:16:04,308 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-19 08:16:04,315 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2018-09-19 08:16:04,323 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2018-09-19 08:16:04,324 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=59, Unknown=0, NotChecked=0, Total=90 [2018-09-19 08:16:04,326 INFO L87 Difference]: Start difference. First operand 237 states. Second operand 10 states. [2018-09-19 08:16:10,148 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-19 08:16:10,149 INFO L93 Difference]: Finished difference Result 622 states and 1061 transitions. [2018-09-19 08:16:10,150 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2018-09-19 08:16:10,151 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 122 [2018-09-19 08:16:10,152 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-19 08:16:10,171 INFO L225 Difference]: With dead ends: 622 [2018-09-19 08:16:10,172 INFO L226 Difference]: Without dead ends: 383 [2018-09-19 08:16:10,180 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 125 GetRequests, 113 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=63, Invalid=119, Unknown=0, NotChecked=0, Total=182 [2018-09-19 08:16:10,200 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 383 states. [2018-09-19 08:16:10,257 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 383 to 380. [2018-09-19 08:16:10,259 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 380 states. [2018-09-19 08:16:10,262 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 380 states to 380 states and 531 transitions. [2018-09-19 08:16:10,264 INFO L78 Accepts]: Start accepts. Automaton has 380 states and 531 transitions. Word has length 122 [2018-09-19 08:16:10,265 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-19 08:16:10,266 INFO L480 AbstractCegarLoop]: Abstraction has 380 states and 531 transitions. [2018-09-19 08:16:10,266 INFO L481 AbstractCegarLoop]: Interpolant automaton has 10 states. [2018-09-19 08:16:10,266 INFO L276 IsEmpty]: Start isEmpty. Operand 380 states and 531 transitions. [2018-09-19 08:16:10,271 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2018-09-19 08:16:10,272 INFO L368 BasicCegarLoop]: Found error trace [2018-09-19 08:16:10,272 INFO L376 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-19 08:16:10,273 INFO L423 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-19 08:16:10,273 INFO L82 PathProgramCache]: Analyzing trace with hash 442445345, now seen corresponding path program 1 times [2018-09-19 08:16:10,273 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-19 08:16:10,274 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 133 with the following transitions: [2018-09-19 08:16:10,274 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [6], [9], [10], [14], [18], [22], [26], [30], [34], [38], [42], [53], [64], [68], [72], [76], [80], [84], [88], [92], [96], [100], [104], [108], [112], [116], [120], [124], [128], [132], [136], [140], [144], [148], [152], [156], [160], [171], [175], [179], [183], [187], [191], [195], [199], [210], [214], [218], [222], [233], [237], [241], [245], [249], [253], [257], [268], [272], [283], [287], [298], [309], [313], [317], [321], [325], [329], [333], [344], [348], [352], [356], [360], [364], [368], [372], [379], [387], [395], [403], [411], [419], [427], [435], [443], [451], [459], [467], [475], [483], [491], [499], [507], [515], [523], [531], [539], [547], [555], [563], [571], [579], [587], [595], [603], [611], [619], [627], [635], [643], [647], [649], [863], [867], [871], [877], [881], [883], [888], [889], [890], [892], [893] [2018-09-19 08:16:10,284 INFO L148 AbstractInterpreter]: Using domain OctagonDomain [2018-09-19 08:16:10,285 INFO L101 FixpointEngine]: Starting fixpoint engine with domain OctagonDomain (maxUnwinding=3, maxParallelStates=1) [2018-09-19 08:16:48,517 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-19 08:16:48,518 INFO L272 AbstractInterpreter]: Visited 125 different actions 244 times. Merged at 5 different actions 5 times. Never widened. Found 1 fixpoints after 1 different actions. Largest state had 38 variables. [2018-09-19 08:16:48,559 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-19 08:16:50,915 INFO L232 lantSequenceWeakener]: Weakened 130 states. On average, predicates are now at 81.18% of their original sizes. [2018-09-19 08:16:50,915 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-19 08:16:51,802 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-19 08:16:51,803 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-19 08:16:51,803 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2018-09-19 08:16:51,803 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-19 08:16:51,804 INFO L459 AbstractCegarLoop]: Interpolant automaton has 14 states [2018-09-19 08:16:51,805 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2018-09-19 08:16:51,805 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=135, Unknown=0, NotChecked=0, Total=182 [2018-09-19 08:16:51,805 INFO L87 Difference]: Start difference. First operand 380 states and 531 transitions. Second operand 14 states. [2018-09-19 08:17:03,085 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-19 08:17:03,086 INFO L93 Difference]: Finished difference Result 910 states and 1354 transitions. [2018-09-19 08:17:03,087 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2018-09-19 08:17:03,088 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 132 [2018-09-19 08:17:03,089 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-19 08:17:03,095 INFO L225 Difference]: With dead ends: 910 [2018-09-19 08:17:03,095 INFO L226 Difference]: Without dead ends: 536 [2018-09-19 08:17:03,101 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 146 GetRequests, 119 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 148 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=192, Invalid=620, Unknown=0, NotChecked=0, Total=812 [2018-09-19 08:17:03,103 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 536 states. [2018-09-19 08:17:03,143 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 536 to 528. [2018-09-19 08:17:03,144 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 528 states. [2018-09-19 08:17:03,147 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 528 states to 528 states and 701 transitions. [2018-09-19 08:17:03,147 INFO L78 Accepts]: Start accepts. Automaton has 528 states and 701 transitions. Word has length 132 [2018-09-19 08:17:03,148 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-19 08:17:03,148 INFO L480 AbstractCegarLoop]: Abstraction has 528 states and 701 transitions. [2018-09-19 08:17:03,148 INFO L481 AbstractCegarLoop]: Interpolant automaton has 14 states. [2018-09-19 08:17:03,149 INFO L276 IsEmpty]: Start isEmpty. Operand 528 states and 701 transitions. [2018-09-19 08:17:03,153 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 137 [2018-09-19 08:17:03,153 INFO L368 BasicCegarLoop]: Found error trace [2018-09-19 08:17:03,154 INFO L376 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-19 08:17:03,154 INFO L423 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-19 08:17:03,154 INFO L82 PathProgramCache]: Analyzing trace with hash 1602535193, now seen corresponding path program 1 times [2018-09-19 08:17:03,155 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-19 08:17:03,155 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 137 with the following transitions: [2018-09-19 08:17:03,155 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [6], [10], [14], [18], [22], [25], [26], [30], [34], [38], [42], [53], [64], [68], [72], [76], [80], [84], [88], [92], [96], [100], [104], [108], [112], [116], [120], [124], [128], [132], [136], [140], [144], [148], [152], [156], [160], [171], [175], [179], [183], [187], [191], [195], [199], [210], [214], [218], [222], [233], [237], [241], [245], [249], [253], [257], [268], [272], [283], [287], [298], [309], [313], [317], [321], [325], [329], [333], [344], [348], [352], [356], [360], [364], [368], [372], [379], [387], [395], [403], [411], [419], [427], [435], [443], [451], [459], [467], [475], [483], [491], [499], [507], [515], [523], [531], [539], [547], [555], [563], [571], [579], [587], [595], [603], [611], [619], [627], [635], [643], [647], [649], [863], [867], [871], [877], [881], [883], [888], [889], [890], [892], [893] [2018-09-19 08:17:03,162 INFO L148 AbstractInterpreter]: Using domain OctagonDomain [2018-09-19 08:17:03,162 INFO L101 FixpointEngine]: Starting fixpoint engine with domain OctagonDomain (maxUnwinding=3, maxParallelStates=1) [2018-09-19 08:17:39,704 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-19 08:17:39,705 INFO L272 AbstractInterpreter]: Visited 125 different actions 244 times. Merged at 5 different actions 5 times. Never widened. Found 1 fixpoints after 1 different actions. Largest state had 38 variables. [2018-09-19 08:17:39,714 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-19 08:17:41,549 INFO L232 lantSequenceWeakener]: Weakened 134 states. On average, predicates are now at 81.16% of their original sizes. [2018-09-19 08:17:41,550 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-19 08:17:42,220 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-19 08:17:42,221 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-19 08:17:42,222 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2018-09-19 08:17:42,222 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-19 08:17:42,223 INFO L459 AbstractCegarLoop]: Interpolant automaton has 14 states [2018-09-19 08:17:42,223 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2018-09-19 08:17:42,223 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=135, Unknown=0, NotChecked=0, Total=182 [2018-09-19 08:17:42,224 INFO L87 Difference]: Start difference. First operand 528 states and 701 transitions. Second operand 14 states. [2018-09-19 08:17:49,403 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-19 08:17:49,404 INFO L93 Difference]: Finished difference Result 1208 states and 1697 transitions. [2018-09-19 08:17:49,406 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2018-09-19 08:17:49,406 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 136 [2018-09-19 08:17:49,408 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-19 08:17:49,412 INFO L225 Difference]: With dead ends: 1208 [2018-09-19 08:17:49,412 INFO L226 Difference]: Without dead ends: 686 [2018-09-19 08:17:49,415 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 149 GetRequests, 123 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 144 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=171, Invalid=585, Unknown=0, NotChecked=0, Total=756 [2018-09-19 08:17:49,415 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 686 states. [2018-09-19 08:17:49,462 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 686 to 676. [2018-09-19 08:17:49,462 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 676 states. [2018-09-19 08:17:49,465 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 676 states to 676 states and 881 transitions. [2018-09-19 08:17:49,466 INFO L78 Accepts]: Start accepts. Automaton has 676 states and 881 transitions. Word has length 136 [2018-09-19 08:17:49,466 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-19 08:17:49,466 INFO L480 AbstractCegarLoop]: Abstraction has 676 states and 881 transitions. [2018-09-19 08:17:49,466 INFO L481 AbstractCegarLoop]: Interpolant automaton has 14 states. [2018-09-19 08:17:49,467 INFO L276 IsEmpty]: Start isEmpty. Operand 676 states and 881 transitions. [2018-09-19 08:17:49,469 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 142 [2018-09-19 08:17:49,470 INFO L368 BasicCegarLoop]: Found error trace [2018-09-19 08:17:49,470 INFO L376 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-19 08:17:49,470 INFO L423 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-19 08:17:49,470 INFO L82 PathProgramCache]: Analyzing trace with hash 1027611340, now seen corresponding path program 1 times [2018-09-19 08:17:49,471 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-19 08:17:49,471 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 142 with the following transitions: [2018-09-19 08:17:49,471 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [5], [6], [9], [10], [14], [18], [22], [26], [30], [34], [38], [42], [53], [64], [68], [72], [76], [80], [84], [88], [92], [96], [100], [104], [108], [112], [116], [120], [124], [128], [132], [136], [140], [144], [148], [152], [156], [160], [171], [175], [179], [183], [187], [191], [195], [199], [210], [214], [218], [222], [233], [237], [241], [245], [249], [253], [257], [268], [272], [283], [287], [298], [309], [313], [317], [321], [325], [329], [333], [344], [348], [352], [356], [360], [364], [368], [372], [379], [387], [395], [403], [411], [419], [427], [435], [443], [451], [459], [467], [475], [483], [491], [499], [507], [515], [523], [531], [539], [547], [555], [563], [571], [579], [587], [595], [603], [611], [619], [627], [635], [643], [647], [649], [863], [867], [871], [877], [881], [883], [888], [889], [890], [892], [893] [2018-09-19 08:17:49,476 INFO L148 AbstractInterpreter]: Using domain OctagonDomain [2018-09-19 08:17:49,476 INFO L101 FixpointEngine]: Starting fixpoint engine with domain OctagonDomain (maxUnwinding=3, maxParallelStates=1) [2018-09-19 08:18:42,140 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-19 08:18:42,141 INFO L272 AbstractInterpreter]: Visited 126 different actions 370 times. Merged at 7 different actions 14 times. Never widened. Found 3 fixpoints after 2 different actions. Largest state had 38 variables. [2018-09-19 08:18:42,148 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-19 08:18:43,933 INFO L232 lantSequenceWeakener]: Weakened 139 states. On average, predicates are now at 81.18% of their original sizes. [2018-09-19 08:18:43,934 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-19 08:18:44,613 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-19 08:18:44,614 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-19 08:18:44,614 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2018-09-19 08:18:44,614 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-19 08:18:44,615 INFO L459 AbstractCegarLoop]: Interpolant automaton has 14 states [2018-09-19 08:18:44,615 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2018-09-19 08:18:44,616 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=135, Unknown=0, NotChecked=0, Total=182 [2018-09-19 08:18:44,616 INFO L87 Difference]: Start difference. First operand 676 states and 881 transitions. Second operand 14 states. [2018-09-19 08:18:53,500 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-19 08:18:53,501 INFO L93 Difference]: Finished difference Result 1577 states and 2188 transitions. [2018-09-19 08:18:53,501 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2018-09-19 08:18:53,502 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 141 [2018-09-19 08:18:53,502 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-19 08:18:53,508 INFO L225 Difference]: With dead ends: 1577 [2018-09-19 08:18:53,508 INFO L226 Difference]: Without dead ends: 907 [2018-09-19 08:18:53,511 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 156 GetRequests, 128 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 168 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=202, Invalid=668, Unknown=0, NotChecked=0, Total=870 [2018-09-19 08:18:53,512 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 907 states. [2018-09-19 08:18:53,546 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 907 to 886. [2018-09-19 08:18:53,546 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 886 states. [2018-09-19 08:18:53,551 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 886 states to 886 states and 1117 transitions. [2018-09-19 08:18:53,551 INFO L78 Accepts]: Start accepts. Automaton has 886 states and 1117 transitions. Word has length 141 [2018-09-19 08:18:53,552 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-19 08:18:53,552 INFO L480 AbstractCegarLoop]: Abstraction has 886 states and 1117 transitions. [2018-09-19 08:18:53,552 INFO L481 AbstractCegarLoop]: Interpolant automaton has 14 states. [2018-09-19 08:18:53,553 INFO L276 IsEmpty]: Start isEmpty. Operand 886 states and 1117 transitions. [2018-09-19 08:18:53,556 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 156 [2018-09-19 08:18:53,557 INFO L368 BasicCegarLoop]: Found error trace [2018-09-19 08:18:53,557 INFO L376 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-19 08:18:53,557 INFO L423 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-19 08:18:53,558 INFO L82 PathProgramCache]: Analyzing trace with hash 1193075045, now seen corresponding path program 1 times [2018-09-19 08:18:53,558 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-19 08:18:53,558 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 156 with the following transitions: [2018-09-19 08:18:53,559 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [5], [6], [9], [10], [14], [18], [22], [25], [26], [30], [34], [38], [42], [53], [64], [68], [72], [76], [80], [84], [88], [92], [96], [100], [104], [108], [112], [116], [120], [124], [128], [132], [136], [140], [144], [148], [152], [156], [160], [171], [175], [179], [183], [187], [191], [195], [199], [210], [214], [218], [222], [233], [237], [241], [245], [249], [253], [257], [268], [272], [283], [287], [298], [309], [313], [317], [321], [325], [329], [333], [344], [348], [352], [356], [360], [364], [368], [372], [379], [387], [395], [403], [411], [419], [427], [435], [443], [451], [459], [467], [475], [483], [491], [499], [507], [515], [523], [531], [539], [547], [555], [563], [571], [579], [587], [595], [603], [611], [619], [627], [635], [643], [647], [649], [863], [867], [871], [877], [881], [883], [888], [889], [890], [892], [893] [2018-09-19 08:18:53,564 INFO L148 AbstractInterpreter]: Using domain OctagonDomain [2018-09-19 08:18:53,565 INFO L101 FixpointEngine]: Starting fixpoint engine with domain OctagonDomain (maxUnwinding=3, maxParallelStates=1) [2018-09-19 08:20:04,383 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-19 08:20:04,384 INFO L272 AbstractInterpreter]: Visited 127 different actions 508 times. Merged at 8 different actions 33 times. Never widened. Found 8 fixpoints after 2 different actions. Largest state had 38 variables. [2018-09-19 08:20:04,394 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-19 08:20:06,139 INFO L232 lantSequenceWeakener]: Weakened 153 states. On average, predicates are now at 81.16% of their original sizes. [2018-09-19 08:20:06,139 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-19 08:20:06,839 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-19 08:20:06,839 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-19 08:20:06,839 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2018-09-19 08:20:06,839 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-19 08:20:06,840 INFO L459 AbstractCegarLoop]: Interpolant automaton has 14 states [2018-09-19 08:20:06,840 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2018-09-19 08:20:06,841 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=135, Unknown=0, NotChecked=0, Total=182 [2018-09-19 08:20:06,841 INFO L87 Difference]: Start difference. First operand 886 states and 1117 transitions. Second operand 14 states. Received shutdown request... [2018-09-19 08:20:08,608 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2018-09-19 08:20:08,608 WARN L549 AbstractCegarLoop]: Verification canceled [2018-09-19 08:20:08,615 WARN L206 ceAbstractionStarter]: Timeout [2018-09-19 08:20:08,615 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.09 08:20:08 BoogieIcfgContainer [2018-09-19 08:20:08,616 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-09-19 08:20:08,617 INFO L168 Benchmark]: Toolchain (without parser) took 270900.57 ms. Allocated memory was 1.5 GB in the beginning and 2.8 GB in the end (delta: 1.3 GB). Free memory was 1.4 GB in the beginning and 2.4 GB in the end (delta: -1.0 GB). Peak memory consumption was 211.8 MB. Max. memory is 7.1 GB. [2018-09-19 08:20:08,618 INFO L168 Benchmark]: CDTParser took 0.23 ms. Allocated memory is still 1.5 GB. Free memory is still 1.4 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-09-19 08:20:08,619 INFO L168 Benchmark]: CACSL2BoogieTranslator took 736.38 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.4 GB in the end (delta: 31.7 MB). Peak memory consumption was 31.7 MB. Max. memory is 7.1 GB. [2018-09-19 08:20:08,620 INFO L168 Benchmark]: Boogie Procedure Inliner took 94.52 ms. Allocated memory is still 1.5 GB. Free memory is still 1.4 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-09-19 08:20:08,620 INFO L168 Benchmark]: Boogie Preprocessor took 240.39 ms. Allocated memory was 1.5 GB in the beginning and 2.2 GB in the end (delta: 736.1 MB). Free memory was 1.4 GB in the beginning and 2.2 GB in the end (delta: -810.6 MB). Peak memory consumption was 24.2 MB. Max. memory is 7.1 GB. [2018-09-19 08:20:08,621 INFO L168 Benchmark]: RCFGBuilder took 3646.54 ms. Allocated memory is still 2.2 GB. Free memory was 2.2 GB in the beginning and 2.1 GB in the end (delta: 109.9 MB). Peak memory consumption was 109.9 MB. Max. memory is 7.1 GB. [2018-09-19 08:20:08,622 INFO L168 Benchmark]: TraceAbstraction took 266174.97 ms. Allocated memory was 2.2 GB in the beginning and 2.8 GB in the end (delta: 519.0 MB). Free memory was 2.1 GB in the beginning and 2.4 GB in the end (delta: -374.4 MB). Peak memory consumption was 144.7 MB. Max. memory is 7.1 GB. [2018-09-19 08:20:08,627 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23 ms. Allocated memory is still 1.5 GB. Free memory is still 1.4 GB. There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 736.38 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.4 GB in the end (delta: 31.7 MB). Peak memory consumption was 31.7 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 94.52 ms. Allocated memory is still 1.5 GB. Free memory is still 1.4 GB. There was no memory consumed. Max. memory is 7.1 GB. * Boogie Preprocessor took 240.39 ms. Allocated memory was 1.5 GB in the beginning and 2.2 GB in the end (delta: 736.1 MB). Free memory was 1.4 GB in the beginning and 2.2 GB in the end (delta: -810.6 MB). Peak memory consumption was 24.2 MB. Max. memory is 7.1 GB. * RCFGBuilder took 3646.54 ms. Allocated memory is still 2.2 GB. Free memory was 2.2 GB in the beginning and 2.1 GB in the end (delta: 109.9 MB). Peak memory consumption was 109.9 MB. Max. memory is 7.1 GB. * TraceAbstraction took 266174.97 ms. Allocated memory was 2.2 GB in the beginning and 2.8 GB in the end (delta: 519.0 MB). Free memory was 2.1 GB in the beginning and 2.4 GB in the end (delta: -374.4 MB). Peak memory consumption was 144.7 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResultAtElement [Line: 517]: Timeout (TraceAbstraction) Unable to prove that call of __VERIFIER_error() unreachable (line 517). Cancelled while BasicCegarLoop was constructing difference of abstraction (886states) and FLOYD_HOARE automaton (currently 20 states, 14 states before enhancement), while ReachableStatesComputation was computing reachable states (117 states constructedinput type IntersectNwa). - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 237 locations, 1 error locations. TIMEOUT Result, 266.0s OverallTime, 5 OverallIterations, 4 TraceHistogramMax, 35.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 930 SDtfs, 4502 SDslu, 1666 SDs, 0 SdLazy, 7770 SolverSat, 849 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 28.9s Time, PredicateUnifierStatistics: 10 DeclaredPredicates, 744 GetRequests, 625 SyntacticMatches, 0 SemanticMatches, 119 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 608 ImplicationChecksByTransitivity, 6.8s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=886occurred in iteration=4, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 216.2s AbstIntTime, 5 AbstIntIterations, 5 AbstIntStrong, 0.9939016804887445 AbsIntWeakeningRatio, 0.21585903083700442 AbsIntAvgWeakeningVarsNumRemoved, 2416.5594713656387 AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.2s AutomataMinimizationTime, 4 MinimizatonAttempts, 42 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/Problem02_label00_true-unreach-call_false-termination.c_svcomp-Reach-64bit-ToothlessTaipan_OCT-OldIcfg.epf_AutomizerCInline.xml/Csv-Benchmark-0-2018-09-19_08-20-08-641.csv Written .csv to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/csv/Problem02_label00_true-unreach-call_false-termination.c_svcomp-Reach-64bit-ToothlessTaipan_OCT-OldIcfg.epf_AutomizerCInline.xml/Csv-TraceAbstractionBenchmarks-0-2018-09-19_08-20-08-641.csv Completed graceful shutdown