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/Problem16_label35_true-unreach-call.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-69f5bdd-m [2018-09-19 11:01:58,226 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-09-19 11:01:58,229 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-09-19 11:01:58,242 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-09-19 11:01:58,243 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-09-19 11:01:58,244 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-09-19 11:01:58,245 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-09-19 11:01:58,256 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-09-19 11:01:58,259 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-09-19 11:01:58,260 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-09-19 11:01:58,261 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-09-19 11:01:58,261 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-09-19 11:01:58,262 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-09-19 11:01:58,263 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-09-19 11:01:58,265 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-09-19 11:01:58,266 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-09-19 11:01:58,267 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-09-19 11:01:58,269 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-09-19 11:01:58,271 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-09-19 11:01:58,272 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-09-19 11:01:58,274 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-09-19 11:01:58,275 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-09-19 11:01:58,278 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-09-19 11:01:58,278 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-09-19 11:01:58,278 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-09-19 11:01:58,281 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-09-19 11:01:58,282 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-09-19 11:01:58,283 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-09-19 11:01:58,286 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-09-19 11:01:58,288 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-09-19 11:01:58,288 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-09-19 11:01:58,290 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-09-19 11:01:58,290 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-09-19 11:01:58,291 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-09-19 11:01:58,293 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-09-19 11:01:58,294 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-09-19 11:01:58,294 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 11:01:58,326 INFO L110 SettingsManager]: Loading preferences was successful [2018-09-19 11:01:58,327 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-09-19 11:01:58,328 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-09-19 11:01:58,328 INFO L133 SettingsManager]: * User list type=DISABLED [2018-09-19 11:01:58,328 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-09-19 11:01:58,329 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-09-19 11:01:58,329 INFO L133 SettingsManager]: * Congruence Domain=false [2018-09-19 11:01:58,329 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-09-19 11:01:58,329 INFO L133 SettingsManager]: * Abstract domain=OctagonDomain [2018-09-19 11:01:58,329 INFO L133 SettingsManager]: * Log string format=TERM [2018-09-19 11:01:58,330 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-09-19 11:01:58,330 INFO L133 SettingsManager]: * Parallel states before merging=1 [2018-09-19 11:01:58,330 INFO L133 SettingsManager]: * Interval Domain=false [2018-09-19 11:01:58,331 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-09-19 11:01:58,331 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-09-19 11:01:58,333 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-09-19 11:01:58,333 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-09-19 11:01:58,333 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-09-19 11:01:58,333 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-09-19 11:01:58,333 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-09-19 11:01:58,334 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-09-19 11:01:58,334 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-09-19 11:01:58,334 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-09-19 11:01:58,334 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-09-19 11:01:58,336 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-09-19 11:01:58,336 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-09-19 11:01:58,336 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-09-19 11:01:58,336 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-09-19 11:01:58,337 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-09-19 11:01:58,337 INFO L133 SettingsManager]: * Trace refinement strategy=TOOTHLESS_TAIPAN [2018-09-19 11:01:58,337 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-09-19 11:01:58,337 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-09-19 11:01:58,338 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-09-19 11:01:58,338 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-09-19 11:01:58,338 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-09-19 11:01:58,418 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-09-19 11:01:58,432 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-09-19 11:01:58,437 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-09-19 11:01:58,439 INFO L271 PluginConnector]: Initializing CDTParser... [2018-09-19 11:01:58,439 INFO L276 PluginConnector]: CDTParser initialized [2018-09-19 11:01:58,440 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem16_label35_true-unreach-call.c [2018-09-19 11:01:58,798 INFO L221 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/24d8889eb/bd04050068d54c7191f97d7e81e5909f/FLAG287ff98f0 [2018-09-19 11:01:59,180 INFO L277 CDTParser]: Found 1 translation units. [2018-09-19 11:01:59,181 INFO L159 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem16_label35_true-unreach-call.c [2018-09-19 11:01:59,202 INFO L325 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/24d8889eb/bd04050068d54c7191f97d7e81e5909f/FLAG287ff98f0 [2018-09-19 11:01:59,223 INFO L333 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/24d8889eb/bd04050068d54c7191f97d7e81e5909f [2018-09-19 11:01:59,235 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-09-19 11:01:59,238 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-09-19 11:01:59,239 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-09-19 11:01:59,239 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-09-19 11:01:59,246 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-09-19 11:01:59,247 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.09 11:01:59" (1/1) ... [2018-09-19 11:01:59,250 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@14d0561 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 11:01:59, skipping insertion in model container [2018-09-19 11:01:59,250 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.09 11:01:59" (1/1) ... [2018-09-19 11:01:59,263 INFO L160 ieTranslatorObserver]: Starting translation in SV-COMP mode [2018-09-19 11:02:00,008 INFO L170 PostProcessor]: Settings: Checked method=main [2018-09-19 11:02:00,028 INFO L424 MainDispatcher]: Starting main dispatcher in SV-COMP mode [2018-09-19 11:02:00,333 INFO L170 PostProcessor]: Settings: Checked method=main [2018-09-19 11:02:00,442 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 11:02:00 WrapperNode [2018-09-19 11:02:00,442 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-09-19 11:02:00,444 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-09-19 11:02:00,444 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-09-19 11:02:00,444 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-09-19 11:02:00,457 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 11:02:00" (1/1) ... [2018-09-19 11:02:00,524 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 11:02:00" (1/1) ... [2018-09-19 11:02:00,667 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-09-19 11:02:00,668 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-09-19 11:02:00,668 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-09-19 11:02:00,668 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-09-19 11:02:01,004 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 11:02:00" (1/1) ... [2018-09-19 11:02:01,004 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 11:02:00" (1/1) ... [2018-09-19 11:02:01,019 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 11:02:00" (1/1) ... [2018-09-19 11:02:01,020 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 11:02:00" (1/1) ... [2018-09-19 11:02:01,098 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 11:02:00" (1/1) ... [2018-09-19 11:02:01,127 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 11:02:00" (1/1) ... [2018-09-19 11:02:01,163 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 11:02:00" (1/1) ... [2018-09-19 11:02:01,194 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-09-19 11:02:01,195 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-09-19 11:02:01,195 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-09-19 11:02:01,195 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-09-19 11:02:01,196 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 11:02:00" (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 11:02:01,268 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-09-19 11:02:01,268 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-09-19 11:02:01,268 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output2 [2018-09-19 11:02:01,268 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output2 [2018-09-19 11:02:01,268 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2018-09-19 11:02:01,268 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2018-09-19 11:02:01,269 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-09-19 11:02:01,269 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-09-19 11:02:01,269 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-09-19 11:02:01,269 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-09-19 11:02:07,877 INFO L356 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-09-19 11:02:07,878 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.09 11:02:07 BoogieIcfgContainer [2018-09-19 11:02:07,878 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-09-19 11:02:07,879 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-09-19 11:02:07,879 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-09-19 11:02:07,883 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-09-19 11:02:07,883 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.09 11:01:59" (1/3) ... [2018-09-19 11:02:07,884 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6b2a3e09 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.09 11:02:07, skipping insertion in model container [2018-09-19 11:02:07,885 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 11:02:00" (2/3) ... [2018-09-19 11:02:07,885 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6b2a3e09 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.09 11:02:07, skipping insertion in model container [2018-09-19 11:02:07,885 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.09 11:02:07" (3/3) ... [2018-09-19 11:02:07,887 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem16_label35_true-unreach-call.c [2018-09-19 11:02:07,898 INFO L137 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-09-19 11:02:07,908 INFO L149 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-09-19 11:02:07,971 INFO L130 ementStrategyFactory]: Using default assertion order modulation [2018-09-19 11:02:07,972 INFO L381 AbstractCegarLoop]: Interprodecural is true [2018-09-19 11:02:07,972 INFO L382 AbstractCegarLoop]: Hoare is true [2018-09-19 11:02:07,973 INFO L383 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-09-19 11:02:07,973 INFO L384 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-09-19 11:02:07,973 INFO L385 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-09-19 11:02:07,973 INFO L386 AbstractCegarLoop]: Difference is false [2018-09-19 11:02:07,973 INFO L387 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-09-19 11:02:07,973 INFO L392 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-09-19 11:02:08,009 INFO L276 IsEmpty]: Start isEmpty. Operand 410 states. [2018-09-19 11:02:08,018 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2018-09-19 11:02:08,018 INFO L368 BasicCegarLoop]: Found error trace [2018-09-19 11:02:08,019 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 11:02:08,021 INFO L423 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-19 11:02:08,026 INFO L82 PathProgramCache]: Analyzing trace with hash 1960867948, now seen corresponding path program 1 times [2018-09-19 11:02:08,029 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-19 11:02:08,030 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 49 with the following transitions: [2018-09-19 11:02:08,033 INFO L202 CegarAbsIntRunner]: [0], [1], [180], [187], [195], [203], [211], [219], [227], [235], [243], [251], [259], [267], [275], [283], [291], [299], [307], [315], [323], [331], [339], [347], [355], [363], [371], [379], [387], [395], [403], [411], [419], [427], [435], [443], [451], [459], [463], [465], [1556], [1560], [1566], [1570], [1579], [1580], [1581], [1583] [2018-09-19 11:02:08,088 INFO L148 AbstractInterpreter]: Using domain OctagonDomain [2018-09-19 11:02:08,088 INFO L101 FixpointEngine]: Starting fixpoint engine with domain OctagonDomain (maxUnwinding=3, maxParallelStates=1) [2018-09-19 11:02:09,265 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-19 11:02:09,267 INFO L272 AbstractInterpreter]: Visited 47 different actions 47 times. Never merged. Never widened. Never found a fixpoint. Largest state had 23 variables. [2018-09-19 11:02:09,283 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-19 11:02:09,771 INFO L232 lantSequenceWeakener]: Weakened 46 states. On average, predicates are now at 80.39% of their original sizes. [2018-09-19 11:02:09,771 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-19 11:02:10,073 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-19 11:02:10,075 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-19 11:02:10,075 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-09-19 11:02:10,075 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-19 11:02:10,081 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-09-19 11:02:10,088 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-09-19 11:02:10,089 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2018-09-19 11:02:10,092 INFO L87 Difference]: Start difference. First operand 410 states. Second operand 6 states. [2018-09-19 11:02:19,344 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-19 11:02:19,344 INFO L93 Difference]: Finished difference Result 1158 states and 2145 transitions. [2018-09-19 11:02:19,347 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-09-19 11:02:19,348 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 48 [2018-09-19 11:02:19,349 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-19 11:02:19,370 INFO L225 Difference]: With dead ends: 1158 [2018-09-19 11:02:19,370 INFO L226 Difference]: Without dead ends: 746 [2018-09-19 11:02:19,380 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 47 GetRequests, 43 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2018-09-19 11:02:19,398 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 746 states. [2018-09-19 11:02:19,473 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 746 to 744. [2018-09-19 11:02:19,474 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 744 states. [2018-09-19 11:02:19,479 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 744 states to 744 states and 1075 transitions. [2018-09-19 11:02:19,481 INFO L78 Accepts]: Start accepts. Automaton has 744 states and 1075 transitions. Word has length 48 [2018-09-19 11:02:19,481 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-19 11:02:19,481 INFO L480 AbstractCegarLoop]: Abstraction has 744 states and 1075 transitions. [2018-09-19 11:02:19,482 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-09-19 11:02:19,482 INFO L276 IsEmpty]: Start isEmpty. Operand 744 states and 1075 transitions. [2018-09-19 11:02:19,488 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 141 [2018-09-19 11:02:19,489 INFO L368 BasicCegarLoop]: Found error trace [2018-09-19 11:02:19,489 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] [2018-09-19 11:02:19,489 INFO L423 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-19 11:02:19,490 INFO L82 PathProgramCache]: Analyzing trace with hash 1008425326, now seen corresponding path program 1 times [2018-09-19 11:02:19,490 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-19 11:02:19,490 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 141 with the following transitions: [2018-09-19 11:02:19,491 INFO L202 CegarAbsIntRunner]: [0], [1], [180], [187], [195], [203], [211], [219], [227], [235], [243], [251], [259], [267], [275], [283], [291], [299], [307], [315], [323], [331], [339], [347], [355], [363], [371], [379], [387], [395], [403], [411], [419], [427], [435], [443], [451], [459], [463], [465], [468], [476], [484], [492], [500], [508], [516], [524], [532], [540], [548], [556], [564], [572], [580], [588], [596], [604], [612], [620], [628], [636], [644], [652], [660], [668], [673], [677], [681], [685], [689], [693], [697], [701], [705], [709], [713], [717], [721], [725], [729], [733], [737], [741], [745], [749], [753], [757], [760], [1552], [1556], [1560], [1566], [1570], [1572], [1579], [1580], [1581], [1583], [1584] [2018-09-19 11:02:19,499 INFO L148 AbstractInterpreter]: Using domain OctagonDomain [2018-09-19 11:02:19,499 INFO L101 FixpointEngine]: Starting fixpoint engine with domain OctagonDomain (maxUnwinding=3, maxParallelStates=1) [2018-09-19 11:02:21,692 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-09-19 11:02:25,912 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-19 11:02:25,912 INFO L272 AbstractInterpreter]: Visited 99 different actions 284 times. Merged at 5 different actions 9 times. Never widened. Found 1 fixpoints after 1 different actions. Largest state had 24 variables. [2018-09-19 11:02:25,922 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-19 11:02:26,910 INFO L232 lantSequenceWeakener]: Weakened 138 states. On average, predicates are now at 78.38% of their original sizes. [2018-09-19 11:02:26,911 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-19 11:02:27,361 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-19 11:02:27,362 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-19 11:02:27,362 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2018-09-19 11:02:27,362 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-19 11:02:27,363 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2018-09-19 11:02:27,364 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2018-09-19 11:02:27,364 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=81, Unknown=0, NotChecked=0, Total=110 [2018-09-19 11:02:27,364 INFO L87 Difference]: Start difference. First operand 744 states and 1075 transitions. Second operand 11 states. [2018-09-19 11:02:50,594 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-19 11:02:50,595 INFO L93 Difference]: Finished difference Result 1772 states and 3024 transitions. [2018-09-19 11:02:50,597 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2018-09-19 11:02:50,597 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 140 [2018-09-19 11:02:50,598 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-19 11:02:50,604 INFO L225 Difference]: With dead ends: 1772 [2018-09-19 11:02:50,605 INFO L226 Difference]: Without dead ends: 1372 [2018-09-19 11:02:50,607 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 148 GetRequests, 130 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 57 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=87, Invalid=293, Unknown=0, NotChecked=0, Total=380 [2018-09-19 11:02:50,609 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1372 states. [2018-09-19 11:02:50,653 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1372 to 1094. [2018-09-19 11:02:50,653 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1094 states. [2018-09-19 11:02:50,658 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1094 states to 1094 states and 1441 transitions. [2018-09-19 11:02:50,659 INFO L78 Accepts]: Start accepts. Automaton has 1094 states and 1441 transitions. Word has length 140 [2018-09-19 11:02:50,660 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-19 11:02:50,660 INFO L480 AbstractCegarLoop]: Abstraction has 1094 states and 1441 transitions. [2018-09-19 11:02:50,660 INFO L481 AbstractCegarLoop]: Interpolant automaton has 11 states. [2018-09-19 11:02:50,660 INFO L276 IsEmpty]: Start isEmpty. Operand 1094 states and 1441 transitions. [2018-09-19 11:02:50,665 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 177 [2018-09-19 11:02:50,665 INFO L368 BasicCegarLoop]: Found error trace [2018-09-19 11:02:50,666 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] [2018-09-19 11:02:50,666 INFO L423 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-19 11:02:50,666 INFO L82 PathProgramCache]: Analyzing trace with hash 1802724966, now seen corresponding path program 1 times [2018-09-19 11:02:50,666 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-19 11:02:50,667 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 177 with the following transitions: [2018-09-19 11:02:50,667 INFO L202 CegarAbsIntRunner]: [0], [1], [180], [187], [195], [203], [211], [219], [227], [235], [243], [251], [259], [267], [275], [283], [291], [299], [307], [315], [323], [331], [339], [347], [355], [363], [371], [379], [387], [395], [403], [411], [419], [427], [435], [443], [451], [459], [463], [465], [468], [476], [484], [492], [500], [508], [516], [524], [532], [540], [548], [556], [564], [572], [580], [588], [596], [604], [612], [620], [628], [636], [644], [652], [660], [668], [673], [677], [681], [685], [689], [693], [697], [701], [705], [709], [713], [717], [721], [725], [729], [733], [737], [741], [745], [749], [753], [757], [761], [765], [769], [773], [777], [781], [785], [789], [793], [797], [801], [805], [809], [813], [817], [821], [825], [829], [833], [837], [841], [845], [849], [853], [857], [861], [865], [869], [873], [877], [881], [885], [889], [893], [897], [901], [904], [1552], [1556], [1560], [1566], [1570], [1572], [1579], [1580], [1581], [1583], [1584] [2018-09-19 11:02:50,674 INFO L148 AbstractInterpreter]: Using domain OctagonDomain [2018-09-19 11:02:50,674 INFO L101 FixpointEngine]: Starting fixpoint engine with domain OctagonDomain (maxUnwinding=3, maxParallelStates=1) [2018-09-19 11:02:53,816 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-09-19 11:02:59,388 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-19 11:02:59,388 INFO L272 AbstractInterpreter]: Visited 135 different actions 392 times. Merged at 5 different actions 9 times. Never widened. Found 1 fixpoints after 1 different actions. Largest state had 24 variables. [2018-09-19 11:02:59,392 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-19 11:03:00,462 INFO L232 lantSequenceWeakener]: Weakened 174 states. On average, predicates are now at 78.15% of their original sizes. [2018-09-19 11:03:00,463 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-19 11:03:01,151 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-19 11:03:01,151 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-19 11:03:01,152 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2018-09-19 11:03:01,152 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-19 11:03:01,153 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2018-09-19 11:03:01,153 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2018-09-19 11:03:01,153 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=81, Unknown=0, NotChecked=0, Total=110 [2018-09-19 11:03:01,154 INFO L87 Difference]: Start difference. First operand 1094 states and 1441 transitions. Second operand 11 states. [2018-09-19 11:03:18,608 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-19 11:03:18,608 INFO L93 Difference]: Finished difference Result 2749 states and 4050 transitions. [2018-09-19 11:03:18,610 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2018-09-19 11:03:18,610 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 176 [2018-09-19 11:03:18,611 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-19 11:03:18,622 INFO L225 Difference]: With dead ends: 2749 [2018-09-19 11:03:18,623 INFO L226 Difference]: Without dead ends: 1999 [2018-09-19 11:03:18,626 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 184 GetRequests, 166 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 56 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=91, Invalid=289, Unknown=0, NotChecked=0, Total=380 [2018-09-19 11:03:18,628 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1999 states. [2018-09-19 11:03:18,680 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1999 to 1450. [2018-09-19 11:03:18,680 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1450 states. [2018-09-19 11:03:18,686 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1450 states to 1450 states and 1815 transitions. [2018-09-19 11:03:18,686 INFO L78 Accepts]: Start accepts. Automaton has 1450 states and 1815 transitions. Word has length 176 [2018-09-19 11:03:18,687 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-19 11:03:18,687 INFO L480 AbstractCegarLoop]: Abstraction has 1450 states and 1815 transitions. [2018-09-19 11:03:18,687 INFO L481 AbstractCegarLoop]: Interpolant automaton has 11 states. [2018-09-19 11:03:18,687 INFO L276 IsEmpty]: Start isEmpty. Operand 1450 states and 1815 transitions. [2018-09-19 11:03:18,694 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 289 [2018-09-19 11:03:18,694 INFO L368 BasicCegarLoop]: Found error trace [2018-09-19 11:03:18,695 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 11:03:18,695 INFO L423 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-19 11:03:18,695 INFO L82 PathProgramCache]: Analyzing trace with hash 1428144262, now seen corresponding path program 1 times [2018-09-19 11:03:18,696 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-19 11:03:18,696 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 289 with the following transitions: [2018-09-19 11:03:18,697 INFO L202 CegarAbsIntRunner]: [0], [1], [180], [187], [195], [203], [211], [219], [227], [235], [243], [251], [259], [267], [275], [283], [291], [299], [307], [315], [323], [331], [339], [347], [355], [363], [371], [379], [387], [395], [403], [411], [419], [427], [435], [443], [451], [459], [463], [465], [468], [476], [484], [492], [500], [508], [516], [524], [532], [540], [548], [556], [564], [572], [580], [588], [596], [604], [612], [620], [628], [636], [644], [652], [660], [668], [673], [677], [681], [685], [689], [693], [697], [701], [705], [709], [713], [717], [721], [725], [729], [733], [737], [741], [745], [749], [753], [757], [761], [765], [769], [773], [777], [781], [785], [789], [793], [797], [801], [805], [809], [813], [817], [821], [825], [829], [833], [837], [841], [845], [849], [853], [857], [861], [865], [869], [873], [877], [881], [885], [889], [893], [897], [901], [905], [909], [913], [917], [921], [925], [929], [933], [937], [941], [945], [949], [953], [957], [961], [965], [969], [973], [977], [981], [985], [989], [993], [997], [1001], [1005], [1009], [1013], [1017], [1021], [1025], [1029], [1033], [1037], [1041], [1045], [1049], [1053], [1057], [1061], [1065], [1069], [1073], [1077], [1081], [1085], [1089], [1093], [1097], [1101], [1105], [1109], [1113], [1117], [1121], [1125], [1129], [1133], [1137], [1141], [1145], [1149], [1153], [1157], [1161], [1165], [1169], [1173], [1177], [1181], [1185], [1189], [1193], [1197], [1201], [1205], [1209], [1213], [1217], [1221], [1225], [1229], [1233], [1237], [1241], [1245], [1249], [1253], [1257], [1261], [1265], [1269], [1273], [1277], [1281], [1285], [1289], [1293], [1297], [1301], [1305], [1309], [1313], [1317], [1321], [1325], [1329], [1333], [1337], [1341], [1345], [1349], [1352], [1552], [1556], [1560], [1566], [1570], [1572], [1579], [1580], [1581], [1583], [1584] [2018-09-19 11:03:18,713 INFO L148 AbstractInterpreter]: Using domain OctagonDomain [2018-09-19 11:03:18,713 INFO L101 FixpointEngine]: Starting fixpoint engine with domain OctagonDomain (maxUnwinding=3, maxParallelStates=1) [2018-09-19 11:03:30,739 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-19 11:03:30,739 INFO L272 AbstractInterpreter]: Visited 247 different actions 488 times. Merged at 5 different actions 5 times. Never widened. Found 1 fixpoints after 1 different actions. Largest state had 24 variables. [2018-09-19 11:03:30,746 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-19 11:03:31,943 INFO L232 lantSequenceWeakener]: Weakened 286 states. On average, predicates are now at 77.81% of their original sizes. [2018-09-19 11:03:31,943 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-19 11:03:32,319 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-19 11:03:32,319 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-19 11:03:32,320 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2018-09-19 11:03:32,320 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-19 11:03:32,320 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2018-09-19 11:03:32,321 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2018-09-19 11:03:32,321 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=116, Unknown=0, NotChecked=0, Total=156 [2018-09-19 11:03:32,321 INFO L87 Difference]: Start difference. First operand 1450 states and 1815 transitions. Second operand 13 states. [2018-09-19 11:03:41,451 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-19 11:03:41,451 INFO L93 Difference]: Finished difference Result 2897 states and 3954 transitions. [2018-09-19 11:03:41,460 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2018-09-19 11:03:41,460 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 288 [2018-09-19 11:03:41,461 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-19 11:03:41,471 INFO L225 Difference]: With dead ends: 2897 [2018-09-19 11:03:41,472 INFO L226 Difference]: Without dead ends: 1793 [2018-09-19 11:03:41,476 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 298 GetRequests, 276 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 94 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=127, Invalid=425, Unknown=0, NotChecked=0, Total=552 [2018-09-19 11:03:41,478 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1793 states. [2018-09-19 11:03:41,534 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1793 to 1790. [2018-09-19 11:03:41,535 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1790 states. [2018-09-19 11:03:41,541 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1790 states to 1790 states and 2172 transitions. [2018-09-19 11:03:41,541 INFO L78 Accepts]: Start accepts. Automaton has 1790 states and 2172 transitions. Word has length 288 [2018-09-19 11:03:41,542 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-19 11:03:41,543 INFO L480 AbstractCegarLoop]: Abstraction has 1790 states and 2172 transitions. [2018-09-19 11:03:41,543 INFO L481 AbstractCegarLoop]: Interpolant automaton has 13 states. [2018-09-19 11:03:41,543 INFO L276 IsEmpty]: Start isEmpty. Operand 1790 states and 2172 transitions. [2018-09-19 11:03:41,549 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 297 [2018-09-19 11:03:41,549 INFO L368 BasicCegarLoop]: Found error trace [2018-09-19 11:03:41,549 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 11:03:41,550 INFO L423 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-19 11:03:41,551 INFO L82 PathProgramCache]: Analyzing trace with hash -1649899786, now seen corresponding path program 1 times [2018-09-19 11:03:41,551 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-19 11:03:41,551 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 297 with the following transitions: [2018-09-19 11:03:41,552 INFO L202 CegarAbsIntRunner]: [0], [1], [180], [187], [195], [203], [211], [219], [227], [235], [243], [251], [259], [267], [275], [283], [291], [299], [307], [315], [323], [331], [339], [347], [355], [363], [371], [379], [387], [395], [403], [411], [419], [427], [435], [443], [451], [459], [463], [465], [468], [476], [484], [492], [500], [508], [516], [524], [532], [540], [548], [556], [564], [572], [580], [588], [596], [604], [612], [620], [628], [636], [644], [652], [660], [668], [673], [677], [681], [685], [689], [693], [697], [701], [705], [709], [713], [717], [721], [725], [729], [733], [737], [741], [745], [749], [753], [757], [761], [765], [769], [773], [777], [781], [785], [789], [793], [797], [801], [805], [809], [813], [817], [821], [825], [829], [833], [837], [841], [845], [849], [853], [857], [861], [865], [869], [873], [877], [881], [885], [889], [893], [897], [901], [905], [909], [913], [917], [921], [925], [929], [933], [937], [941], [945], [949], [953], [957], [961], [965], [969], [973], [977], [981], [985], [989], [993], [997], [1001], [1005], [1009], [1013], [1017], [1021], [1025], [1029], [1033], [1037], [1041], [1045], [1049], [1053], [1057], [1061], [1065], [1069], [1073], [1077], [1081], [1085], [1089], [1093], [1097], [1101], [1105], [1109], [1113], [1117], [1121], [1125], [1129], [1133], [1137], [1141], [1145], [1149], [1153], [1157], [1161], [1165], [1169], [1173], [1177], [1181], [1185], [1189], [1193], [1197], [1201], [1205], [1209], [1213], [1217], [1221], [1225], [1229], [1233], [1237], [1241], [1245], [1249], [1253], [1257], [1261], [1265], [1269], [1273], [1277], [1281], [1285], [1289], [1293], [1297], [1301], [1305], [1309], [1313], [1317], [1321], [1325], [1329], [1333], [1337], [1341], [1345], [1349], [1353], [1357], [1361], [1365], [1369], [1373], [1377], [1381], [1384], [1552], [1556], [1560], [1566], [1570], [1572], [1579], [1580], [1581], [1583], [1584] [2018-09-19 11:03:41,562 INFO L148 AbstractInterpreter]: Using domain OctagonDomain [2018-09-19 11:03:41,562 INFO L101 FixpointEngine]: Starting fixpoint engine with domain OctagonDomain (maxUnwinding=3, maxParallelStates=1) [2018-09-19 11:03:57,691 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-19 11:03:57,691 INFO L272 AbstractInterpreter]: Visited 255 different actions 752 times. Merged at 5 different actions 9 times. Never widened. Found 1 fixpoints after 1 different actions. Largest state had 24 variables. [2018-09-19 11:03:57,728 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-19 11:03:59,032 INFO L232 lantSequenceWeakener]: Weakened 294 states. On average, predicates are now at 77.79% of their original sizes. [2018-09-19 11:03:59,032 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-19 11:03:59,442 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-19 11:03:59,442 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-19 11:03:59,442 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2018-09-19 11:03:59,442 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-19 11:03:59,443 INFO L459 AbstractCegarLoop]: Interpolant automaton has 14 states [2018-09-19 11:03:59,443 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2018-09-19 11:03:59,444 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=135, Unknown=0, NotChecked=0, Total=182 [2018-09-19 11:03:59,444 INFO L87 Difference]: Start difference. First operand 1790 states and 2172 transitions. Second operand 14 states. [2018-09-19 11:04:14,430 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-19 11:04:14,430 INFO L93 Difference]: Finished difference Result 3242 states and 4318 transitions. [2018-09-19 11:04:14,432 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2018-09-19 11:04:14,433 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 296 [2018-09-19 11:04:14,433 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-19 11:04:14,444 INFO L225 Difference]: With dead ends: 3242 [2018-09-19 11:04:14,444 INFO L226 Difference]: Without dead ends: 2138 [2018-09-19 11:04:14,449 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 308 GetRequests, 283 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 127 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=173, Invalid=529, Unknown=0, NotChecked=0, Total=702 [2018-09-19 11:04:14,452 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2138 states. [2018-09-19 11:04:14,511 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2138 to 2132. [2018-09-19 11:04:14,512 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2132 states. [2018-09-19 11:04:14,518 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2132 states to 2132 states and 2533 transitions. [2018-09-19 11:04:14,519 INFO L78 Accepts]: Start accepts. Automaton has 2132 states and 2533 transitions. Word has length 296 [2018-09-19 11:04:14,520 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-19 11:04:14,520 INFO L480 AbstractCegarLoop]: Abstraction has 2132 states and 2533 transitions. [2018-09-19 11:04:14,520 INFO L481 AbstractCegarLoop]: Interpolant automaton has 14 states. [2018-09-19 11:04:14,520 INFO L276 IsEmpty]: Start isEmpty. Operand 2132 states and 2533 transitions. [2018-09-19 11:04:14,529 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 381 [2018-09-19 11:04:14,529 INFO L368 BasicCegarLoop]: Found error trace [2018-09-19 11:04:14,530 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 11:04:14,530 INFO L423 AbstractCegarLoop]: === Iteration 6 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-19 11:04:14,530 INFO L82 PathProgramCache]: Analyzing trace with hash -1840470648, now seen corresponding path program 1 times [2018-09-19 11:04:14,531 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-19 11:04:14,531 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 381 with the following transitions: [2018-09-19 11:04:14,531 INFO L202 CegarAbsIntRunner]: [0], [1], [180], [187], [195], [203], [211], [219], [227], [235], [243], [251], [259], [267], [275], [283], [291], [299], [307], [315], [323], [331], [339], [347], [355], [363], [371], [379], [387], [395], [403], [411], [419], [427], [435], [443], [451], [459], [463], [465], [468], [476], [484], [492], [500], [508], [516], [524], [532], [540], [548], [556], [564], [572], [580], [588], [596], [604], [612], [620], [628], [636], [644], [652], [660], [668], [673], [677], [681], [685], [689], [693], [697], [701], [705], [709], [713], [717], [721], [725], [729], [733], [737], [741], [745], [749], [753], [757], [760], [761], [765], [769], [773], [777], [781], [785], [789], [793], [797], [801], [805], [809], [813], [817], [821], [825], [829], [833], [837], [841], [845], [849], [853], [857], [861], [865], [869], [873], [877], [881], [885], [889], [893], [897], [901], [905], [909], [913], [917], [921], [925], [929], [933], [937], [941], [945], [949], [953], [957], [961], [965], [969], [973], [977], [981], [985], [989], [993], [997], [1001], [1005], [1009], [1013], [1017], [1021], [1025], [1029], [1033], [1037], [1041], [1045], [1049], [1053], [1057], [1061], [1065], [1069], [1073], [1077], [1081], [1085], [1089], [1093], [1097], [1101], [1105], [1109], [1113], [1117], [1121], [1125], [1129], [1133], [1137], [1141], [1145], [1149], [1153], [1157], [1161], [1165], [1169], [1173], [1177], [1181], [1185], [1189], [1193], [1197], [1201], [1205], [1209], [1213], [1217], [1221], [1225], [1229], [1233], [1237], [1241], [1245], [1249], [1253], [1257], [1261], [1265], [1269], [1273], [1277], [1281], [1285], [1289], [1293], [1297], [1301], [1305], [1309], [1313], [1317], [1321], [1325], [1329], [1333], [1337], [1341], [1345], [1349], [1352], [1552], [1556], [1560], [1566], [1570], [1572], [1579], [1580], [1581], [1583], [1584] [2018-09-19 11:04:14,539 INFO L148 AbstractInterpreter]: Using domain OctagonDomain [2018-09-19 11:04:14,540 INFO L101 FixpointEngine]: Starting fixpoint engine with domain OctagonDomain (maxUnwinding=3, maxParallelStates=1) [2018-09-19 11:04:16,112 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-09-19 11:04:36,932 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-19 11:04:36,932 INFO L272 AbstractInterpreter]: Visited 248 different actions 983 times. Merged at 7 different actions 24 times. Never widened. Found 5 fixpoints after 2 different actions. Largest state had 24 variables. [2018-09-19 11:04:36,940 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-19 11:04:39,021 INFO L232 lantSequenceWeakener]: Weakened 378 states. On average, predicates are now at 77.7% of their original sizes. [2018-09-19 11:04:39,021 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-19 11:04:39,327 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-19 11:04:39,327 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-19 11:04:39,328 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2018-09-19 11:04:39,328 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-19 11:04:39,328 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2018-09-19 11:04:39,329 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2018-09-19 11:04:39,329 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=81, Unknown=0, NotChecked=0, Total=110 [2018-09-19 11:04:39,329 INFO L87 Difference]: Start difference. First operand 2132 states and 2533 transitions. Second operand 11 states. [2018-09-19 11:04:50,410 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-19 11:04:50,410 INFO L93 Difference]: Finished difference Result 4495 states and 5901 transitions. [2018-09-19 11:04:50,411 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2018-09-19 11:04:50,411 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 380 [2018-09-19 11:04:50,412 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-19 11:04:50,424 INFO L225 Difference]: With dead ends: 4495 [2018-09-19 11:04:50,424 INFO L226 Difference]: Without dead ends: 3049 [2018-09-19 11:04:50,429 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 390 GetRequests, 370 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 75 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=106, Invalid=356, Unknown=0, NotChecked=0, Total=462 [2018-09-19 11:04:50,432 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3049 states. [2018-09-19 11:04:50,492 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3049 to 2489. [2018-09-19 11:04:50,493 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2489 states. [2018-09-19 11:04:50,499 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2489 states to 2489 states and 2917 transitions. [2018-09-19 11:04:50,500 INFO L78 Accepts]: Start accepts. Automaton has 2489 states and 2917 transitions. Word has length 380 [2018-09-19 11:04:50,501 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-19 11:04:50,501 INFO L480 AbstractCegarLoop]: Abstraction has 2489 states and 2917 transitions. [2018-09-19 11:04:50,501 INFO L481 AbstractCegarLoop]: Interpolant automaton has 11 states. [2018-09-19 11:04:50,501 INFO L276 IsEmpty]: Start isEmpty. Operand 2489 states and 2917 transitions. [2018-09-19 11:04:50,510 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 398 [2018-09-19 11:04:50,510 INFO L368 BasicCegarLoop]: Found error trace [2018-09-19 11:04:50,510 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, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-19 11:04:50,511 INFO L423 AbstractCegarLoop]: === Iteration 7 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-19 11:04:50,511 INFO L82 PathProgramCache]: Analyzing trace with hash 27496461, now seen corresponding path program 1 times [2018-09-19 11:04:50,511 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-19 11:04:50,511 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 398 with the following transitions: [2018-09-19 11:04:50,512 INFO L202 CegarAbsIntRunner]: [0], [1], [180], [187], [195], [203], [211], [219], [227], [235], [243], [251], [259], [267], [275], [283], [291], [299], [307], [315], [323], [331], [339], [347], [355], [363], [371], [379], [387], [395], [403], [411], [419], [427], [435], [443], [451], [459], [463], [465], [468], [476], [484], [492], [500], [508], [516], [524], [532], [540], [548], [556], [564], [572], [580], [588], [596], [604], [612], [620], [628], [636], [644], [652], [660], [668], [673], [677], [681], [685], [689], [693], [697], [701], [705], [709], [713], [717], [721], [725], [729], [733], [737], [741], [745], [749], [753], [757], [761], [765], [769], [773], [777], [781], [785], [789], [793], [796], [797], [801], [805], [809], [813], [817], [821], [825], [829], [833], [837], [841], [845], [849], [853], [857], [861], [865], [869], [873], [877], [881], [885], [889], [893], [897], [901], [905], [909], [913], [917], [921], [925], [929], [933], [937], [941], [945], [949], [953], [957], [961], [965], [969], [973], [977], [981], [985], [989], [993], [997], [1001], [1005], [1009], [1013], [1017], [1021], [1025], [1029], [1033], [1037], [1041], [1045], [1049], [1053], [1057], [1061], [1065], [1069], [1073], [1077], [1081], [1085], [1089], [1093], [1097], [1101], [1105], [1109], [1113], [1117], [1121], [1125], [1129], [1133], [1137], [1141], [1145], [1149], [1153], [1157], [1161], [1165], [1169], [1173], [1177], [1181], [1185], [1189], [1193], [1197], [1201], [1205], [1209], [1213], [1217], [1221], [1225], [1229], [1233], [1237], [1241], [1245], [1249], [1253], [1257], [1261], [1265], [1269], [1273], [1277], [1281], [1285], [1289], [1293], [1297], [1301], [1305], [1309], [1313], [1317], [1321], [1325], [1329], [1333], [1337], [1341], [1345], [1349], [1353], [1357], [1361], [1365], [1369], [1373], [1377], [1381], [1384], [1552], [1556], [1560], [1566], [1570], [1572], [1579], [1580], [1581], [1583], [1584] [2018-09-19 11:04:50,518 INFO L148 AbstractInterpreter]: Using domain OctagonDomain [2018-09-19 11:04:50,518 INFO L101 FixpointEngine]: Starting fixpoint engine with domain OctagonDomain (maxUnwinding=3, maxParallelStates=1) [2018-09-19 11:04:57,763 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-09-19 11:05:17,298 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-19 11:05:17,298 INFO L272 AbstractInterpreter]: Visited 256 different actions 1013 times. Merged at 7 different actions 22 times. Never widened. Found 4 fixpoints after 2 different actions. Largest state had 24 variables. [2018-09-19 11:05:17,309 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-19 11:05:19,053 INFO L232 lantSequenceWeakener]: Weakened 395 states. On average, predicates are now at 77.68% of their original sizes. [2018-09-19 11:05:19,054 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-19 11:05:19,411 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-19 11:05:19,412 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-19 11:05:19,412 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2018-09-19 11:05:19,412 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-19 11:05:19,412 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2018-09-19 11:05:19,413 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2018-09-19 11:05:19,413 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=116, Unknown=0, NotChecked=0, Total=156 [2018-09-19 11:05:19,413 INFO L87 Difference]: Start difference. First operand 2489 states and 2917 transitions. Second operand 13 states. [2018-09-19 11:05:28,564 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-19 11:05:28,564 INFO L93 Difference]: Finished difference Result 4647 states and 5816 transitions. [2018-09-19 11:05:28,565 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2018-09-19 11:05:28,565 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 397 [2018-09-19 11:05:28,566 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-19 11:05:28,576 INFO L225 Difference]: With dead ends: 4647 [2018-09-19 11:05:28,576 INFO L226 Difference]: Without dead ends: 2844 [2018-09-19 11:05:28,582 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 407 GetRequests, 385 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 92 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=131, Invalid=421, Unknown=0, NotChecked=0, Total=552 [2018-09-19 11:05:28,585 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2844 states. [2018-09-19 11:05:28,653 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2844 to 2833. [2018-09-19 11:05:28,654 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2833 states. [2018-09-19 11:05:28,660 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2833 states to 2833 states and 3297 transitions. [2018-09-19 11:05:28,661 INFO L78 Accepts]: Start accepts. Automaton has 2833 states and 3297 transitions. Word has length 397 [2018-09-19 11:05:28,662 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-19 11:05:28,662 INFO L480 AbstractCegarLoop]: Abstraction has 2833 states and 3297 transitions. [2018-09-19 11:05:28,662 INFO L481 AbstractCegarLoop]: Interpolant automaton has 13 states. [2018-09-19 11:05:28,663 INFO L276 IsEmpty]: Start isEmpty. Operand 2833 states and 3297 transitions. [2018-09-19 11:05:28,672 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 417 [2018-09-19 11:05:28,672 INFO L368 BasicCegarLoop]: Found error trace [2018-09-19 11:05:28,673 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-19 11:05:28,673 INFO L423 AbstractCegarLoop]: === Iteration 8 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-19 11:05:28,674 INFO L82 PathProgramCache]: Analyzing trace with hash 150905472, now seen corresponding path program 1 times [2018-09-19 11:05:28,674 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-19 11:05:28,674 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 417 with the following transitions: [2018-09-19 11:05:28,674 INFO L202 CegarAbsIntRunner]: [0], [1], [180], [187], [195], [203], [211], [219], [227], [235], [243], [251], [259], [267], [275], [283], [291], [299], [307], [315], [323], [331], [339], [347], [355], [363], [371], [379], [387], [395], [403], [411], [419], [427], [435], [443], [451], [459], [463], [465], [468], [476], [484], [492], [500], [508], [516], [524], [532], [540], [548], [556], [564], [572], [580], [588], [596], [604], [612], [620], [628], [636], [644], [652], [660], [668], [673], [677], [681], [685], [689], [693], [697], [701], [705], [709], [713], [717], [721], [725], [729], [733], [737], [741], [745], [749], [753], [757], [761], [765], [769], [773], [777], [781], [785], [789], [793], [797], [801], [805], [809], [813], [817], [821], [825], [829], [833], [837], [841], [845], [849], [853], [857], [861], [865], [869], [873], [877], [881], [885], [889], [893], [897], [901], [904], [905], [909], [913], [917], [921], [925], [929], [933], [937], [941], [945], [949], [953], [957], [961], [965], [969], [973], [977], [981], [985], [989], [993], [997], [1001], [1005], [1009], [1013], [1017], [1021], [1025], [1029], [1033], [1037], [1041], [1045], [1049], [1053], [1057], [1061], [1065], [1069], [1073], [1077], [1081], [1085], [1089], [1093], [1097], [1101], [1105], [1109], [1113], [1117], [1121], [1125], [1129], [1133], [1137], [1141], [1145], [1149], [1153], [1157], [1161], [1165], [1169], [1173], [1177], [1181], [1185], [1189], [1193], [1197], [1201], [1205], [1209], [1213], [1217], [1221], [1225], [1229], [1233], [1237], [1241], [1245], [1249], [1253], [1257], [1261], [1265], [1269], [1273], [1277], [1281], [1285], [1289], [1293], [1297], [1301], [1305], [1309], [1313], [1317], [1321], [1325], [1329], [1333], [1337], [1341], [1345], [1349], [1352], [1552], [1556], [1560], [1566], [1570], [1572], [1579], [1580], [1581], [1583], [1584] [2018-09-19 11:05:28,681 INFO L148 AbstractInterpreter]: Using domain OctagonDomain [2018-09-19 11:05:28,681 INFO L101 FixpointEngine]: Starting fixpoint engine with domain OctagonDomain (maxUnwinding=3, maxParallelStates=1) [2018-09-19 11:05:31,418 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-09-19 11:05:51,975 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-19 11:05:51,976 INFO L272 AbstractInterpreter]: Visited 248 different actions 983 times. Merged at 7 different actions 24 times. Never widened. Found 5 fixpoints after 2 different actions. Largest state had 24 variables. [2018-09-19 11:05:51,986 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-19 11:05:53,586 INFO L232 lantSequenceWeakener]: Weakened 414 states. On average, predicates are now at 77.66% of their original sizes. [2018-09-19 11:05:53,586 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-19 11:05:53,871 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-19 11:05:53,871 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-19 11:05:53,872 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2018-09-19 11:05:53,872 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-19 11:05:53,872 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2018-09-19 11:05:53,873 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2018-09-19 11:05:53,873 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=81, Unknown=0, NotChecked=0, Total=110 [2018-09-19 11:05:53,873 INFO L87 Difference]: Start difference. First operand 2833 states and 3297 transitions. Second operand 11 states. Received shutdown request... [2018-09-19 11:06:11,531 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2018-09-19 11:06:11,532 WARN L549 AbstractCegarLoop]: Verification canceled [2018-09-19 11:06:11,538 WARN L206 ceAbstractionStarter]: Timeout [2018-09-19 11:06:11,538 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.09 11:06:11 BoogieIcfgContainer [2018-09-19 11:06:11,538 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-09-19 11:06:11,539 INFO L168 Benchmark]: Toolchain (without parser) took 252303.90 ms. Allocated memory was 1.5 GB in the beginning and 4.2 GB in the end (delta: 2.7 GB). Free memory was 1.4 GB in the beginning and 2.5 GB in the end (delta: -1.1 GB). Peak memory consumption was 1.6 GB. Max. memory is 7.1 GB. [2018-09-19 11:06:11,541 INFO L168 Benchmark]: CDTParser took 0.23 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 11:06:11,541 INFO L168 Benchmark]: CACSL2BoogieTranslator took 1204.17 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.3 GB in the end (delta: 95.1 MB). Peak memory consumption was 95.1 MB. Max. memory is 7.1 GB. [2018-09-19 11:06:11,542 INFO L168 Benchmark]: Boogie Procedure Inliner took 223.33 ms. Allocated memory is still 1.5 GB. Free memory was 1.3 GB in the beginning and 1.3 GB in the end (delta: 31.7 MB). Peak memory consumption was 31.7 MB. Max. memory is 7.1 GB. [2018-09-19 11:06:11,543 INFO L168 Benchmark]: Boogie Preprocessor took 527.00 ms. Allocated memory was 1.5 GB in the beginning and 2.4 GB in the end (delta: 836.8 MB). Free memory was 1.3 GB in the beginning and 2.3 GB in the end (delta: -971.3 MB). Peak memory consumption was 61.1 MB. Max. memory is 7.1 GB. [2018-09-19 11:06:11,544 INFO L168 Benchmark]: RCFGBuilder took 6683.01 ms. Allocated memory is still 2.4 GB. Free memory was 2.3 GB in the beginning and 2.0 GB in the end (delta: 260.3 MB). Peak memory consumption was 260.3 MB. Max. memory is 7.1 GB. [2018-09-19 11:06:11,544 INFO L168 Benchmark]: TraceAbstraction took 243659.27 ms. Allocated memory was 2.4 GB in the beginning and 4.2 GB in the end (delta: 1.9 GB). Free memory was 2.0 GB in the beginning and 2.5 GB in the end (delta: -482.8 MB). Peak memory consumption was 1.4 GB. Max. memory is 7.1 GB. [2018-09-19 11:06:11,549 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 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 1204.17 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.3 GB in the end (delta: 95.1 MB). Peak memory consumption was 95.1 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 223.33 ms. Allocated memory is still 1.5 GB. Free memory was 1.3 GB in the beginning and 1.3 GB in the end (delta: 31.7 MB). Peak memory consumption was 31.7 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 527.00 ms. Allocated memory was 1.5 GB in the beginning and 2.4 GB in the end (delta: 836.8 MB). Free memory was 1.3 GB in the beginning and 2.3 GB in the end (delta: -971.3 MB). Peak memory consumption was 61.1 MB. Max. memory is 7.1 GB. * RCFGBuilder took 6683.01 ms. Allocated memory is still 2.4 GB. Free memory was 2.3 GB in the beginning and 2.0 GB in the end (delta: 260.3 MB). Peak memory consumption was 260.3 MB. Max. memory is 7.1 GB. * TraceAbstraction took 243659.27 ms. Allocated memory was 2.4 GB in the beginning and 4.2 GB in the end (delta: 1.9 GB). Free memory was 2.0 GB in the beginning and 2.5 GB in the end (delta: -482.8 MB). Peak memory consumption was 1.4 GB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResultAtElement [Line: 130]: Timeout (TraceAbstraction) Unable to prove that call of __VERIFIER_error() unreachable (line 130). Cancelled while BasicCegarLoop was constructing difference of abstraction (2833states) and FLOYD_HOARE automaton (currently 20 states, 11 states before enhancement), while ReachableStatesComputation was computing reachable states (5046 states constructedinput type IntersectNwa). - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 410 locations, 1 error locations. TIMEOUT Result, 243.5s OverallTime, 8 OverallIterations, 3 TraceHistogramMax, 112.1s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 3087 SDtfs, 16582 SDslu, 2377 SDs, 0 SdLazy, 29208 SolverSat, 3987 SolverUnsat, 3 SolverUnknown, 0 SolverNotchecked, 99.5s Time, PredicateUnifierStatistics: 16 DeclaredPredicates, 2208 GetRequests, 2059 SyntacticMatches, 0 SemanticMatches, 149 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 579 ImplicationChecksByTransitivity, 5.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=2833occurred in iteration=7, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 117.1s AbstIntTime, 8 AbstIntIterations, 8 AbstIntStrong, 0.9962918026346755 AbsIntWeakeningRatio, 0.0806375996249414 AbsIntAvgWeakeningVarsNumRemoved, 904.0065635255509 AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.4s AutomataMinimizationTime, 7 MinimizatonAttempts, 1409 StatesRemovedByMinimization, 7 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/Problem16_label35_true-unreach-call.c_svcomp-Reach-64bit-ToothlessTaipan_OCT-OldIcfg.epf_AutomizerCInline.xml/Csv-Benchmark-0-2018-09-19_11-06-11-563.csv Written .csv to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/csv/Problem16_label35_true-unreach-call.c_svcomp-Reach-64bit-ToothlessTaipan_OCT-OldIcfg.epf_AutomizerCInline.xml/Csv-TraceAbstractionBenchmarks-0-2018-09-19_11-06-11-563.csv Completed graceful shutdown