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_Default-OldIcfg.epf -i ../../../trunk/examples/svcomp/eca-rers2012/Problem14_label48_true-unreach-call_false-termination.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-dace188-m [2018-09-15 12:10:19,211 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-09-15 12:10:19,216 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-09-15 12:10:19,239 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-09-15 12:10:19,239 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-09-15 12:10:19,241 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-09-15 12:10:19,242 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-09-15 12:10:19,244 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-09-15 12:10:19,248 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-09-15 12:10:19,249 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-09-15 12:10:19,251 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-09-15 12:10:19,252 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-09-15 12:10:19,253 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-09-15 12:10:19,261 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-09-15 12:10:19,266 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-09-15 12:10:19,267 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-09-15 12:10:19,269 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-09-15 12:10:19,275 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-09-15 12:10:19,280 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-09-15 12:10:19,284 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-09-15 12:10:19,286 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-09-15 12:10:19,287 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-09-15 12:10:19,289 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-09-15 12:10:19,289 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-09-15 12:10:19,290 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-09-15 12:10:19,291 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-09-15 12:10:19,292 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-09-15 12:10:19,293 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-09-15 12:10:19,293 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-09-15 12:10:19,296 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-09-15 12:10:19,297 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-09-15 12:10:19,298 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... 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[2018-09-15 12:10:19,304 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/ai/taipanbench/svcomp-Reach-64bit-ToothlessTaipan_Default-OldIcfg.epf [2018-09-15 12:10:19,342 INFO L110 SettingsManager]: Loading preferences was successful [2018-09-15 12:10:19,343 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-09-15 12:10:19,344 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-09-15 12:10:19,345 INFO L133 SettingsManager]: * User list type=DISABLED [2018-09-15 12:10:19,345 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-09-15 12:10:19,345 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-09-15 12:10:19,345 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-09-15 12:10:19,346 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-09-15 12:10:19,346 INFO L133 SettingsManager]: * Log string format=TERM [2018-09-15 12:10:19,346 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-09-15 12:10:19,346 INFO L133 SettingsManager]: * Interval Domain=false [2018-09-15 12:10:19,349 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-09-15 12:10:19,349 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-09-15 12:10:19,349 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-09-15 12:10:19,349 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-09-15 12:10:19,350 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-09-15 12:10:19,350 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-09-15 12:10:19,350 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-09-15 12:10:19,350 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-09-15 12:10:19,351 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-09-15 12:10:19,351 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-09-15 12:10:19,351 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-09-15 12:10:19,351 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-09-15 12:10:19,351 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-09-15 12:10:19,352 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-09-15 12:10:19,352 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-09-15 12:10:19,352 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-09-15 12:10:19,352 INFO L133 SettingsManager]: * Trace refinement strategy=TOOTHLESS_TAIPAN [2018-09-15 12:10:19,354 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-09-15 12:10:19,354 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-09-15 12:10:19,355 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-09-15 12:10:19,355 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-09-15 12:10:19,355 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-09-15 12:10:19,436 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-09-15 12:10:19,461 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-09-15 12:10:19,469 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-09-15 12:10:19,471 INFO L271 PluginConnector]: Initializing CDTParser... [2018-09-15 12:10:19,471 INFO L276 PluginConnector]: CDTParser initialized [2018-09-15 12:10:19,472 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem14_label48_true-unreach-call_false-termination.c [2018-09-15 12:10:19,861 INFO L221 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b0482f817/eaed13bdd1714a0aa7bfb2773fbf4edc/FLAGc889cb9ed [2018-09-15 12:10:20,160 INFO L277 CDTParser]: Found 1 translation units. [2018-09-15 12:10:20,164 INFO L159 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem14_label48_true-unreach-call_false-termination.c [2018-09-15 12:10:20,186 INFO L325 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b0482f817/eaed13bdd1714a0aa7bfb2773fbf4edc/FLAGc889cb9ed [2018-09-15 12:10:20,207 INFO L333 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b0482f817/eaed13bdd1714a0aa7bfb2773fbf4edc [2018-09-15 12:10:20,223 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-09-15 12:10:20,227 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-09-15 12:10:20,228 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-09-15 12:10:20,229 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-09-15 12:10:20,240 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-09-15 12:10:20,242 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.09 12:10:20" (1/1) ... [2018-09-15 12:10:20,245 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@413bb9f4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 12:10:20, skipping insertion in model container [2018-09-15 12:10:20,246 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.09 12:10:20" (1/1) ... [2018-09-15 12:10:20,260 INFO L160 ieTranslatorObserver]: Starting translation in SV-COMP mode [2018-09-15 12:10:20,898 INFO L170 PostProcessor]: Settings: Checked method=main [2018-09-15 12:10:20,915 INFO L424 MainDispatcher]: Starting main dispatcher in SV-COMP mode [2018-09-15 12:10:21,048 INFO L170 PostProcessor]: Settings: Checked method=main [2018-09-15 12:10:21,110 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 12:10:21 WrapperNode [2018-09-15 12:10:21,110 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-09-15 12:10:21,111 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-09-15 12:10:21,111 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-09-15 12:10:21,111 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-09-15 12:10:21,122 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 12:10:21" (1/1) ... [2018-09-15 12:10:21,150 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 12:10:21" (1/1) ... [2018-09-15 12:10:21,236 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-09-15 12:10:21,237 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-09-15 12:10:21,237 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-09-15 12:10:21,237 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-09-15 12:10:21,432 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 12:10:21" (1/1) ... [2018-09-15 12:10:21,433 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 12:10:21" (1/1) ... [2018-09-15 12:10:21,444 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 12:10:21" (1/1) ... [2018-09-15 12:10:21,445 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 12:10:21" (1/1) ... [2018-09-15 12:10:21,479 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 12:10:21" (1/1) ... [2018-09-15 12:10:21,502 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 12:10:21" (1/1) ... [2018-09-15 12:10:21,526 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 12:10:21" (1/1) ... [2018-09-15 12:10:21,543 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-09-15 12:10:21,543 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-09-15 12:10:21,544 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-09-15 12:10:21,544 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-09-15 12:10:21,545 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 12:10:21" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-09-15 12:10:21,616 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-09-15 12:10:21,617 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-09-15 12:10:21,617 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2018-09-15 12:10:21,617 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2018-09-15 12:10:21,617 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-09-15 12:10:21,617 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-09-15 12:10:21,618 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-09-15 12:10:21,618 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-09-15 12:10:25,400 INFO L353 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-09-15 12:10:25,402 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.09 12:10:25 BoogieIcfgContainer [2018-09-15 12:10:25,402 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-09-15 12:10:25,403 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-09-15 12:10:25,403 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-09-15 12:10:25,407 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-09-15 12:10:25,407 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.09 12:10:20" (1/3) ... [2018-09-15 12:10:25,408 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4cb24896 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.09 12:10:25, skipping insertion in model container [2018-09-15 12:10:25,408 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 12:10:21" (2/3) ... [2018-09-15 12:10:25,409 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4cb24896 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.09 12:10:25, skipping insertion in model container [2018-09-15 12:10:25,409 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.09 12:10:25" (3/3) ... [2018-09-15 12:10:25,411 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem14_label48_true-unreach-call_false-termination.c [2018-09-15 12:10:25,421 INFO L137 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-09-15 12:10:25,431 INFO L149 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-09-15 12:10:25,484 INFO L130 ementStrategyFactory]: Using default assertion order modulation [2018-09-15 12:10:25,485 INFO L381 AbstractCegarLoop]: Interprodecural is true [2018-09-15 12:10:25,485 INFO L382 AbstractCegarLoop]: Hoare is true [2018-09-15 12:10:25,485 INFO L383 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-09-15 12:10:25,485 INFO L384 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-09-15 12:10:25,485 INFO L385 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-09-15 12:10:25,486 INFO L386 AbstractCegarLoop]: Difference is false [2018-09-15 12:10:25,486 INFO L387 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-09-15 12:10:25,486 INFO L392 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-09-15 12:10:25,518 INFO L276 IsEmpty]: Start isEmpty. Operand 255 states. [2018-09-15 12:10:25,527 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2018-09-15 12:10:25,527 INFO L368 BasicCegarLoop]: Found error trace [2018-09-15 12:10:25,528 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] [2018-09-15 12:10:25,529 INFO L423 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-15 12:10:25,535 INFO L82 PathProgramCache]: Analyzing trace with hash -1554885399, now seen corresponding path program 1 times [2018-09-15 12:10:25,538 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-15 12:10:25,539 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 46 with the following transitions: [2018-09-15 12:10:25,542 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [9], [17], [25], [33], [41], [49], [57], [65], [73], [81], [89], [97], [105], [113], [121], [129], [137], [145], [153], [161], [169], [177], [185], [193], [201], [209], [217], [225], [233], [241], [249], [257], [261], [263], [952], [956], [962], [966], [973], [974], [975], [977] [2018-09-15 12:10:25,604 INFO L148 AbstractInterpreter]: Using domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-09-15 12:10:25,604 INFO L101 FixpointEngine]: Starting fixpoint engine with domain CompoundDomain (maxUnwinding=3, maxParallelStates=2) [2018-09-15 12:10:26,768 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-15 12:10:26,770 INFO L272 AbstractInterpreter]: Visited 44 different actions 44 times. Never merged. Never widened. Never found a fixpoint. Largest state had 23 variables. [2018-09-15 12:10:26,788 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-15 12:10:27,557 INFO L232 lantSequenceWeakener]: Weakened 43 states. On average, predicates are now at 80.29% of their original sizes. [2018-09-15 12:10:27,558 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-15 12:10:27,880 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-15 12:10:27,881 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-15 12:10:27,882 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-09-15 12:10:27,882 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-15 12:10:27,889 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-09-15 12:10:27,898 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-09-15 12:10:27,899 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2018-09-15 12:10:27,902 INFO L87 Difference]: Start difference. First operand 255 states. Second operand 6 states. [2018-09-15 12:10:33,110 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-15 12:10:33,111 INFO L93 Difference]: Finished difference Result 693 states and 1229 transitions. [2018-09-15 12:10:33,113 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-09-15 12:10:33,115 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 45 [2018-09-15 12:10:33,115 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-15 12:10:33,138 INFO L225 Difference]: With dead ends: 693 [2018-09-15 12:10:33,138 INFO L226 Difference]: Without dead ends: 436 [2018-09-15 12:10:33,145 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 44 GetRequests, 40 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2018-09-15 12:10:33,164 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 436 states. [2018-09-15 12:10:33,227 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 436 to 434. [2018-09-15 12:10:33,229 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 434 states. [2018-09-15 12:10:33,232 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 434 states to 434 states and 615 transitions. [2018-09-15 12:10:33,234 INFO L78 Accepts]: Start accepts. Automaton has 434 states and 615 transitions. Word has length 45 [2018-09-15 12:10:33,234 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-15 12:10:33,235 INFO L480 AbstractCegarLoop]: Abstraction has 434 states and 615 transitions. [2018-09-15 12:10:33,235 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-09-15 12:10:33,235 INFO L276 IsEmpty]: Start isEmpty. Operand 434 states and 615 transitions. [2018-09-15 12:10:33,241 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2018-09-15 12:10:33,241 INFO L368 BasicCegarLoop]: Found error trace [2018-09-15 12:10:33,242 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-15 12:10:33,242 INFO L423 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-15 12:10:33,243 INFO L82 PathProgramCache]: Analyzing trace with hash -785879557, now seen corresponding path program 1 times [2018-09-15 12:10:33,244 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-15 12:10:33,244 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 131 with the following transitions: [2018-09-15 12:10:33,245 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [9], [17], [25], [33], [41], [49], [57], [65], [73], [81], [89], [97], [105], [113], [121], [129], [137], [145], [153], [161], [169], [177], [185], [193], [201], [209], [217], [225], [233], [241], [249], [257], [261], [263], [266], [274], [282], [290], [298], [306], [314], [322], [330], [338], [346], [354], [362], [370], [378], [386], [394], [402], [410], [418], [426], [434], [442], [450], [458], [466], [474], [482], [490], [495], [499], [503], [507], [511], [515], [519], [523], [527], [531], [535], [539], [543], [547], [551], [554], [948], [952], [956], [962], [966], [968], [973], [974], [975], [977], [978] [2018-09-15 12:10:33,260 INFO L148 AbstractInterpreter]: Using domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-09-15 12:10:33,261 INFO L101 FixpointEngine]: Starting fixpoint engine with domain CompoundDomain (maxUnwinding=3, maxParallelStates=2) [2018-09-15 12:10:40,982 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-15 12:10:40,982 INFO L272 AbstractInterpreter]: Visited 92 different actions 177 times. Merged at 4 different actions 4 times. Never widened. Found 1 fixpoints after 1 different actions. Largest state had 24 variables. [2018-09-15 12:10:40,991 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-15 12:10:43,671 INFO L232 lantSequenceWeakener]: Weakened 128 states. On average, predicates are now at 78.39% of their original sizes. [2018-09-15 12:10:43,671 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-15 12:10:45,281 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-15 12:10:45,281 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-15 12:10:45,282 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2018-09-15 12:10:45,282 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-15 12:10:45,283 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2018-09-15 12:10:45,283 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2018-09-15 12:10:45,284 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=80, Unknown=0, NotChecked=0, Total=110 [2018-09-15 12:10:45,284 INFO L87 Difference]: Start difference. First operand 434 states and 615 transitions. Second operand 11 states. [2018-09-15 12:10:54,189 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-15 12:10:54,189 INFO L93 Difference]: Finished difference Result 1051 states and 1763 transitions. [2018-09-15 12:10:54,191 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2018-09-15 12:10:54,191 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 130 [2018-09-15 12:10:54,192 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-15 12:10:54,197 INFO L225 Difference]: With dead ends: 1051 [2018-09-15 12:10:54,197 INFO L226 Difference]: Without dead ends: 806 [2018-09-15 12:10:54,200 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 136 GetRequests, 87 SyntacticMatches, 33 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 266 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=74, Invalid=232, Unknown=0, NotChecked=0, Total=306 [2018-09-15 12:10:54,201 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 806 states. [2018-09-15 12:10:54,249 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 806 to 803. [2018-09-15 12:10:54,249 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 803 states. [2018-09-15 12:10:54,253 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 803 states to 803 states and 1002 transitions. [2018-09-15 12:10:54,254 INFO L78 Accepts]: Start accepts. Automaton has 803 states and 1002 transitions. Word has length 130 [2018-09-15 12:10:54,255 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-15 12:10:54,255 INFO L480 AbstractCegarLoop]: Abstraction has 803 states and 1002 transitions. [2018-09-15 12:10:54,255 INFO L481 AbstractCegarLoop]: Interpolant automaton has 11 states. [2018-09-15 12:10:54,255 INFO L276 IsEmpty]: Start isEmpty. Operand 803 states and 1002 transitions. [2018-09-15 12:10:54,266 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 157 [2018-09-15 12:10:54,266 INFO L368 BasicCegarLoop]: Found error trace [2018-09-15 12:10:54,268 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-15 12:10:54,268 INFO L423 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-15 12:10:54,268 INFO L82 PathProgramCache]: Analyzing trace with hash -640055345, now seen corresponding path program 1 times [2018-09-15 12:10:54,268 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-15 12:10:54,269 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 157 with the following transitions: [2018-09-15 12:10:54,269 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [9], [17], [25], [33], [41], [49], [57], [65], [73], [81], [89], [97], [105], [113], [121], [129], [137], [145], [153], [161], [169], [177], [185], [193], [201], [209], [217], [225], [233], [241], [249], [257], [261], [263], [266], [274], [282], [290], [298], [306], [314], [322], [330], [338], [346], [354], [362], [370], [378], [386], [394], [402], [410], [418], [426], [434], [442], [450], [458], [466], [474], [482], [490], [495], [499], [503], [507], [511], [515], [519], [523], [527], [531], [535], [539], [543], [547], [551], [555], [559], [563], [567], [571], [575], [579], [583], [587], [591], [595], [599], [603], [607], [611], [615], [619], [623], [627], [631], [635], [639], [643], [647], [651], [655], [658], [948], [952], [956], [962], [966], [968], [973], [974], [975], [977], [978] [2018-09-15 12:10:54,279 INFO L148 AbstractInterpreter]: Using domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-09-15 12:10:54,279 INFO L101 FixpointEngine]: Starting fixpoint engine with domain CompoundDomain (maxUnwinding=3, maxParallelStates=2) [2018-09-15 12:11:06,663 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-15 12:11:06,663 INFO L272 AbstractInterpreter]: Visited 118 different actions 230 times. Merged at 5 different actions 5 times. Never widened. Found 1 fixpoints after 1 different actions. Largest state had 24 variables. [2018-09-15 12:11:06,690 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-15 12:11:09,958 INFO L232 lantSequenceWeakener]: Weakened 154 states. On average, predicates are now at 78.2% of their original sizes. [2018-09-15 12:11:09,959 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-15 12:11:10,945 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-15 12:11:10,946 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-15 12:11:10,946 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2018-09-15 12:11:10,947 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-15 12:11:10,948 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2018-09-15 12:11:10,948 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2018-09-15 12:11:10,948 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=81, Unknown=0, NotChecked=0, Total=110 [2018-09-15 12:11:10,949 INFO L87 Difference]: Start difference. First operand 803 states and 1002 transitions. Second operand 11 states. [2018-09-15 12:11:17,517 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-15 12:11:17,517 INFO L93 Difference]: Finished difference Result 1236 states and 1786 transitions. [2018-09-15 12:11:17,521 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2018-09-15 12:11:17,521 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 156 [2018-09-15 12:11:17,522 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-15 12:11:17,527 INFO L225 Difference]: With dead ends: 1236 [2018-09-15 12:11:17,528 INFO L226 Difference]: Without dead ends: 991 [2018-09-15 12:11:17,529 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 163 GetRequests, 113 SyntacticMatches, 33 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 279 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=83, Invalid=259, Unknown=0, NotChecked=0, Total=342 [2018-09-15 12:11:17,530 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 991 states. [2018-09-15 12:11:17,567 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 991 to 988. [2018-09-15 12:11:17,567 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 988 states. [2018-09-15 12:11:17,572 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 988 states to 988 states and 1200 transitions. [2018-09-15 12:11:17,572 INFO L78 Accepts]: Start accepts. Automaton has 988 states and 1200 transitions. Word has length 156 [2018-09-15 12:11:17,573 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-15 12:11:17,573 INFO L480 AbstractCegarLoop]: Abstraction has 988 states and 1200 transitions. [2018-09-15 12:11:17,573 INFO L481 AbstractCegarLoop]: Interpolant automaton has 11 states. [2018-09-15 12:11:17,573 INFO L276 IsEmpty]: Start isEmpty. Operand 988 states and 1200 transitions. [2018-09-15 12:11:17,580 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 242 [2018-09-15 12:11:17,580 INFO L368 BasicCegarLoop]: Found error trace [2018-09-15 12:11:17,580 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2018-09-15 12:11:17,581 INFO L423 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-15 12:11:17,581 INFO L82 PathProgramCache]: Analyzing trace with hash 976568445, now seen corresponding path program 1 times [2018-09-15 12:11:17,581 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-15 12:11:17,582 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 242 with the following transitions: [2018-09-15 12:11:17,582 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [9], [17], [25], [33], [41], [49], [57], [65], [73], [81], [89], [97], [105], [113], [121], [129], [137], [145], [153], [161], [169], [177], [185], [193], [201], [209], [217], [225], [233], [241], [249], [257], [261], [263], [266], [274], [282], [290], [298], [306], [314], [322], [330], [338], [346], [354], [362], [370], [378], [386], [394], [402], [410], [418], [426], [434], [442], [450], [458], [466], [474], [482], [490], [495], [499], [503], [507], [511], [515], [519], [523], [527], [531], [535], [539], [543], [547], [551], [554], [555], [559], [563], [567], [571], [575], [579], [583], [587], [591], [595], [599], [603], [607], [611], [615], [619], [623], [627], [631], [635], [639], [643], [647], [651], [655], [658], [948], [952], [956], [962], [966], [968], [973], [974], [975], [977], [978] [2018-09-15 12:11:17,587 INFO L148 AbstractInterpreter]: Using domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-09-15 12:11:17,587 INFO L101 FixpointEngine]: Starting fixpoint engine with domain CompoundDomain (maxUnwinding=3, maxParallelStates=2) [2018-09-15 12:11:27,468 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-15 12:11:27,468 INFO L272 AbstractInterpreter]: Visited 119 different actions 352 times. Merged at 7 different actions 17 times. Never widened. Found 4 fixpoints after 2 different actions. Largest state had 24 variables. [2018-09-15 12:11:27,477 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-15 12:11:29,102 INFO L232 lantSequenceWeakener]: Weakened 239 states. On average, predicates are now at 77.89% of their original sizes. [2018-09-15 12:11:29,103 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-15 12:11:29,846 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-15 12:11:29,846 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-15 12:11:29,846 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2018-09-15 12:11:29,847 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-15 12:11:29,847 INFO L459 AbstractCegarLoop]: Interpolant automaton has 15 states [2018-09-15 12:11:29,848 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2018-09-15 12:11:29,848 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=55, Invalid=155, Unknown=0, NotChecked=0, Total=210 [2018-09-15 12:11:29,849 INFO L87 Difference]: Start difference. First operand 988 states and 1200 transitions. Second operand 15 states. [2018-09-15 12:11:42,111 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-15 12:11:42,112 INFO L93 Difference]: Finished difference Result 1967 states and 3058 transitions. [2018-09-15 12:11:42,119 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2018-09-15 12:11:42,120 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 241 [2018-09-15 12:11:42,121 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-15 12:11:42,133 INFO L225 Difference]: With dead ends: 1967 [2018-09-15 12:11:42,133 INFO L226 Difference]: Without dead ends: 1722 [2018-09-15 12:11:42,136 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 256 GetRequests, 227 SyntacticMatches, 0 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 187 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=208, Invalid=722, Unknown=0, NotChecked=0, Total=930 [2018-09-15 12:11:42,138 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1722 states. [2018-09-15 12:11:42,180 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1722 to 1422. [2018-09-15 12:11:42,181 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1422 states. [2018-09-15 12:11:42,186 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1422 states to 1422 states and 1686 transitions. [2018-09-15 12:11:42,186 INFO L78 Accepts]: Start accepts. Automaton has 1422 states and 1686 transitions. Word has length 241 [2018-09-15 12:11:42,187 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-15 12:11:42,187 INFO L480 AbstractCegarLoop]: Abstraction has 1422 states and 1686 transitions. [2018-09-15 12:11:42,187 INFO L481 AbstractCegarLoop]: Interpolant automaton has 15 states. [2018-09-15 12:11:42,187 INFO L276 IsEmpty]: Start isEmpty. Operand 1422 states and 1686 transitions. [2018-09-15 12:11:42,192 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 267 [2018-09-15 12:11:42,192 INFO L368 BasicCegarLoop]: Found error trace [2018-09-15 12:11:42,193 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2018-09-15 12:11:42,193 INFO L423 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-15 12:11:42,193 INFO L82 PathProgramCache]: Analyzing trace with hash 72584058, now seen corresponding path program 1 times [2018-09-15 12:11:42,194 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-15 12:11:42,194 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 267 with the following transitions: [2018-09-15 12:11:42,194 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [9], [17], [25], [33], [41], [49], [57], [65], [73], [81], [89], [97], [105], [113], [121], [129], [137], [145], [153], [161], [169], [177], [185], [193], [201], [209], [217], [225], [233], [241], [249], [257], [261], [263], [266], [274], [282], [290], [298], [306], [314], [322], [330], [338], [346], [354], [362], [370], [378], [386], [394], [402], [410], [418], [426], [434], [442], [450], [458], [466], [474], [482], [490], [495], [499], [503], [507], [511], [515], [519], [523], [527], [531], [535], [539], [543], [547], [551], [555], [559], [563], [567], [571], [575], [579], [583], [587], [591], [595], [599], [603], [607], [611], [615], [619], [623], [627], [631], [635], [639], [643], [647], [651], [654], [655], [658], [948], [952], [956], [962], [966], [968], [973], [974], [975], [977], [978] [2018-09-15 12:11:42,200 INFO L148 AbstractInterpreter]: Using domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-09-15 12:11:42,201 INFO L101 FixpointEngine]: Starting fixpoint engine with domain CompoundDomain (maxUnwinding=3, maxParallelStates=2) [2018-09-15 12:11:54,746 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-09-15 12:12:13,646 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-15 12:12:13,647 INFO L272 AbstractInterpreter]: Visited 119 different actions 465 times. Merged at 7 different actions 22 times. Never widened. Found 4 fixpoints after 2 different actions. Largest state had 24 variables. [2018-09-15 12:12:13,684 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-15 12:12:17,058 INFO L232 lantSequenceWeakener]: Weakened 264 states. On average, predicates are now at 77.85% of their original sizes. [2018-09-15 12:12:17,058 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-15 12:12:18,029 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-15 12:12:18,029 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-15 12:12:18,030 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2018-09-15 12:12:18,030 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-15 12:12:18,030 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2018-09-15 12:12:18,031 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2018-09-15 12:12:18,031 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=81, Unknown=0, NotChecked=0, Total=110 [2018-09-15 12:12:18,031 INFO L87 Difference]: Start difference. First operand 1422 states and 1686 transitions. Second operand 11 states. [2018-09-15 12:12:25,060 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-15 12:12:25,060 INFO L93 Difference]: Finished difference Result 1861 states and 2476 transitions. [2018-09-15 12:12:25,060 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2018-09-15 12:12:25,061 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 266 [2018-09-15 12:12:25,062 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-15 12:12:25,070 INFO L225 Difference]: With dead ends: 1861 [2018-09-15 12:12:25,071 INFO L226 Difference]: Without dead ends: 1616 [2018-09-15 12:12:25,073 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 274 GetRequests, 223 SyntacticMatches, 33 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 288 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=90, Invalid=290, Unknown=0, NotChecked=0, Total=380 [2018-09-15 12:12:25,074 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1616 states. [2018-09-15 12:12:25,120 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1616 to 1609. [2018-09-15 12:12:25,120 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1609 states. [2018-09-15 12:12:25,126 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1609 states to 1609 states and 1904 transitions. [2018-09-15 12:12:25,126 INFO L78 Accepts]: Start accepts. Automaton has 1609 states and 1904 transitions. Word has length 266 [2018-09-15 12:12:25,127 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-15 12:12:25,127 INFO L480 AbstractCegarLoop]: Abstraction has 1609 states and 1904 transitions. [2018-09-15 12:12:25,127 INFO L481 AbstractCegarLoop]: Interpolant automaton has 11 states. [2018-09-15 12:12:25,127 INFO L276 IsEmpty]: Start isEmpty. Operand 1609 states and 1904 transitions. [2018-09-15 12:12:25,134 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 345 [2018-09-15 12:12:25,135 INFO L368 BasicCegarLoop]: Found error trace [2018-09-15 12:12:25,135 INFO L376 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-15 12:12:25,135 INFO L423 AbstractCegarLoop]: === Iteration 6 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-15 12:12:25,136 INFO L82 PathProgramCache]: Analyzing trace with hash 229843365, now seen corresponding path program 1 times [2018-09-15 12:12:25,136 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-15 12:12:25,136 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 345 with the following transitions: [2018-09-15 12:12:25,137 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [9], [17], [25], [33], [41], [49], [57], [65], [73], [81], [89], [97], [105], [113], [121], [129], [137], [145], [153], [161], [169], [177], [185], [193], [201], [209], [217], [225], [233], [241], [249], [257], [261], [263], [266], [274], [282], [290], [298], [306], [314], [322], [330], [338], [346], [354], [362], [370], [378], [386], [394], [402], [410], [418], [426], [434], [442], [450], [458], [466], [474], [482], [490], [495], [499], [503], [507], [511], [515], [519], [523], [526], [527], [531], [535], [539], [543], [547], [551], [555], [559], [563], [567], [571], [575], [579], [583], [587], [591], [595], [599], [603], [607], [611], [615], [619], [623], [627], [631], [635], [639], [643], [647], [651], [654], [655], [658], [948], [952], [956], [962], [966], [968], [973], [974], [975], [977], [978] [2018-09-15 12:12:25,146 INFO L148 AbstractInterpreter]: Using domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-09-15 12:12:25,147 INFO L101 FixpointEngine]: Starting fixpoint engine with domain CompoundDomain (maxUnwinding=3, maxParallelStates=2) [2018-09-15 12:12:36,087 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-09-15 12:12:54,452 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-15 12:12:54,452 INFO L272 AbstractInterpreter]: Visited 120 different actions 710 times. Merged at 8 different actions 45 times. Widened at 1 different actions 1 times. Found 10 fixpoints after 2 different actions. Largest state had 24 variables. [2018-09-15 12:12:54,459 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-15 12:12:56,403 INFO L232 lantSequenceWeakener]: Weakened 342 states. On average, predicates are now at 77.73% of their original sizes. [2018-09-15 12:12:56,403 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-15 12:12:56,674 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-15 12:12:56,675 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-15 12:12:56,675 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2018-09-15 12:12:56,675 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-15 12:12:56,676 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2018-09-15 12:12:56,676 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2018-09-15 12:12:56,676 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2018-09-15 12:12:56,676 INFO L87 Difference]: Start difference. First operand 1609 states and 1904 transitions. Second operand 10 states. [2018-09-15 12:13:02,646 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-15 12:13:02,646 INFO L93 Difference]: Finished difference Result 2266 states and 2945 transitions. [2018-09-15 12:13:02,647 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2018-09-15 12:13:02,647 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 344 [2018-09-15 12:13:02,648 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-15 12:13:02,657 INFO L225 Difference]: With dead ends: 2266 [2018-09-15 12:13:02,657 INFO L226 Difference]: Without dead ends: 1834 [2018-09-15 12:13:02,660 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 351 GetRequests, 335 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 41 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=74, Invalid=232, Unknown=0, NotChecked=0, Total=306 [2018-09-15 12:13:02,662 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1834 states. [2018-09-15 12:13:02,719 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1834 to 1816. [2018-09-15 12:13:02,719 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1816 states. [2018-09-15 12:13:02,725 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1816 states to 1816 states and 2160 transitions. [2018-09-15 12:13:02,726 INFO L78 Accepts]: Start accepts. Automaton has 1816 states and 2160 transitions. Word has length 344 [2018-09-15 12:13:02,727 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-15 12:13:02,727 INFO L480 AbstractCegarLoop]: Abstraction has 1816 states and 2160 transitions. [2018-09-15 12:13:02,727 INFO L481 AbstractCegarLoop]: Interpolant automaton has 10 states. [2018-09-15 12:13:02,727 INFO L276 IsEmpty]: Start isEmpty. Operand 1816 states and 2160 transitions. [2018-09-15 12:13:02,735 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 349 [2018-09-15 12:13:02,736 INFO L368 BasicCegarLoop]: Found error trace [2018-09-15 12:13:02,736 INFO L376 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-15 12:13:02,736 INFO L423 AbstractCegarLoop]: === Iteration 7 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-15 12:13:02,737 INFO L82 PathProgramCache]: Analyzing trace with hash -1177178643, now seen corresponding path program 1 times [2018-09-15 12:13:02,737 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-15 12:13:02,737 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 349 with the following transitions: [2018-09-15 12:13:02,738 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [9], [17], [25], [33], [41], [49], [57], [65], [73], [81], [89], [97], [105], [113], [121], [129], [137], [145], [153], [161], [169], [177], [185], [193], [201], [209], [217], [225], [233], [241], [249], [257], [261], [263], [266], [274], [282], [290], [298], [306], [314], [322], [330], [338], [346], [354], [362], [370], [378], [386], [394], [402], [410], [418], [426], [434], [442], [450], [458], [466], [474], [482], [490], [495], [499], [503], [507], [511], [515], [519], [523], [527], [531], [535], [539], [542], [543], [547], [551], [555], [559], [563], [567], [571], [575], [579], [583], [587], [591], [595], [599], [603], [607], [611], [615], [619], [623], [627], [631], [635], [639], [643], [647], [651], [654], [655], [658], [948], [952], [956], [962], [966], [968], [973], [974], [975], [977], [978] [2018-09-15 12:13:02,741 INFO L148 AbstractInterpreter]: Using domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-09-15 12:13:02,741 INFO L101 FixpointEngine]: Starting fixpoint engine with domain CompoundDomain (maxUnwinding=3, maxParallelStates=2) [2018-09-15 12:13:13,951 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-09-15 12:13:41,421 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-15 12:13:41,422 INFO L272 AbstractInterpreter]: Visited 120 different actions 948 times. Merged at 8 different actions 65 times. Widened at 1 different actions 3 times. Found 14 fixpoints after 2 different actions. Largest state had 24 variables. [2018-09-15 12:13:41,434 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-15 12:13:43,349 INFO L232 lantSequenceWeakener]: Weakened 346 states. On average, predicates are now at 77.73% of their original sizes. [2018-09-15 12:13:43,350 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-15 12:13:43,599 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-15 12:13:43,600 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-15 12:13:43,600 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2018-09-15 12:13:43,600 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-15 12:13:43,601 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2018-09-15 12:13:43,601 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2018-09-15 12:13:43,601 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2018-09-15 12:13:43,601 INFO L87 Difference]: Start difference. First operand 1816 states and 2160 transitions. Second operand 10 states. [2018-09-15 12:13:47,991 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-15 12:13:47,992 INFO L93 Difference]: Finished difference Result 2648 states and 3429 transitions. [2018-09-15 12:13:47,993 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2018-09-15 12:13:47,993 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 348 [2018-09-15 12:13:47,994 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-15 12:13:48,007 INFO L225 Difference]: With dead ends: 2648 [2018-09-15 12:13:48,007 INFO L226 Difference]: Without dead ends: 2011 [2018-09-15 12:13:48,010 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 355 GetRequests, 339 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 41 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=74, Invalid=232, Unknown=0, NotChecked=0, Total=306 [2018-09-15 12:13:48,012 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2011 states. [2018-09-15 12:13:48,073 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2011 to 2001. [2018-09-15 12:13:48,073 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2001 states. [2018-09-15 12:13:48,080 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2001 states to 2001 states and 2378 transitions. [2018-09-15 12:13:48,080 INFO L78 Accepts]: Start accepts. Automaton has 2001 states and 2378 transitions. Word has length 348 [2018-09-15 12:13:48,081 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-15 12:13:48,081 INFO L480 AbstractCegarLoop]: Abstraction has 2001 states and 2378 transitions. [2018-09-15 12:13:48,081 INFO L481 AbstractCegarLoop]: Interpolant automaton has 10 states. [2018-09-15 12:13:48,081 INFO L276 IsEmpty]: Start isEmpty. Operand 2001 states and 2378 transitions. [2018-09-15 12:13:48,088 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 370 [2018-09-15 12:13:48,089 INFO L368 BasicCegarLoop]: Found error trace [2018-09-15 12:13:48,089 INFO L376 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-15 12:13:48,089 INFO L423 AbstractCegarLoop]: === Iteration 8 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-15 12:13:48,090 INFO L82 PathProgramCache]: Analyzing trace with hash 1059723150, now seen corresponding path program 1 times [2018-09-15 12:13:48,090 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-15 12:13:48,090 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 370 with the following transitions: [2018-09-15 12:13:48,090 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [9], [17], [25], [33], [41], [49], [57], [65], [73], [81], [89], [97], [105], [113], [121], [129], [137], [145], [153], [161], [169], [177], [185], [193], [201], [209], [217], [225], [233], [241], [249], [257], [261], [263], [266], [274], [282], [290], [298], [306], [314], [322], [330], [338], [346], [354], [362], [370], [378], [386], [394], [402], [410], [418], [426], [434], [442], [450], [458], [466], [474], [482], [490], [495], [499], [503], [507], [511], [515], [519], [523], [527], [531], [535], [539], [543], [547], [551], [555], [559], [563], [567], [571], [575], [579], [583], [587], [591], [595], [599], [603], [607], [611], [615], [619], [623], [626], [627], [631], [635], [639], [643], [647], [651], [654], [655], [658], [948], [952], [956], [962], [966], [968], [973], [974], [975], [977], [978] [2018-09-15 12:13:48,093 INFO L148 AbstractInterpreter]: Using domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-09-15 12:13:48,093 INFO L101 FixpointEngine]: Starting fixpoint engine with domain CompoundDomain (maxUnwinding=3, maxParallelStates=2) [2018-09-15 12:13:59,826 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-09-15 12:14:17,040 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-15 12:14:17,041 INFO L272 AbstractInterpreter]: Visited 120 different actions 710 times. Merged at 8 different actions 45 times. Widened at 1 different actions 1 times. Found 10 fixpoints after 2 different actions. Largest state had 24 variables. [2018-09-15 12:14:17,047 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates Received shutdown request... [2018-09-15 12:14:19,538 INFO L232 lantSequenceWeakener]: Weakened 367 states. On average, predicates are now at 77.7% of their original sizes. [2018-09-15 12:14:19,538 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-15 12:14:19,557 WARN L549 AbstractCegarLoop]: Verification canceled [2018-09-15 12:14:19,560 WARN L206 ceAbstractionStarter]: Timeout [2018-09-15 12:14:19,561 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 15.09 12:14:19 BoogieIcfgContainer [2018-09-15 12:14:19,561 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-09-15 12:14:19,562 INFO L168 Benchmark]: Toolchain (without parser) took 239337.64 ms. Allocated memory was 1.5 GB in the beginning and 4.1 GB in the end (delta: 2.6 GB). Free memory was 1.4 GB in the beginning and 3.5 GB in the end (delta: -2.1 GB). Peak memory consumption was 513.4 MB. Max. memory is 7.1 GB. [2018-09-15 12:14:19,564 INFO L168 Benchmark]: CDTParser took 0.24 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. [2018-09-15 12:14:19,564 INFO L168 Benchmark]: CACSL2BoogieTranslator took 882.06 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: 52.9 MB). Peak memory consumption was 52.9 MB. Max. memory is 7.1 GB. [2018-09-15 12:14:19,565 INFO L168 Benchmark]: Boogie Procedure Inliner took 125.48 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: 10.6 MB). Peak memory consumption was 10.6 MB. Max. memory is 7.1 GB. [2018-09-15 12:14:19,566 INFO L168 Benchmark]: Boogie Preprocessor took 306.38 ms. Allocated memory was 1.5 GB in the beginning and 2.2 GB in the end (delta: 733.0 MB). Free memory was 1.3 GB in the beginning and 2.2 GB in the end (delta: -833.2 MB). Peak memory consumption was 33.0 MB. Max. memory is 7.1 GB. [2018-09-15 12:14:19,566 INFO L168 Benchmark]: RCFGBuilder took 3858.69 ms. Allocated memory is still 2.2 GB. Free memory was 2.2 GB in the beginning and 2.0 GB in the end (delta: 128.6 MB). Peak memory consumption was 128.6 MB. Max. memory is 7.1 GB. [2018-09-15 12:14:19,567 INFO L168 Benchmark]: TraceAbstraction took 234157.84 ms. Allocated memory was 2.2 GB in the beginning and 4.1 GB in the end (delta: 1.9 GB). Free memory was 2.0 GB in the beginning and 3.5 GB in the end (delta: -1.5 GB). Peak memory consumption was 421.7 MB. Max. memory is 7.1 GB. [2018-09-15 12:14:19,572 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.24 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 882.06 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: 52.9 MB). Peak memory consumption was 52.9 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 125.48 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: 10.6 MB). Peak memory consumption was 10.6 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 306.38 ms. Allocated memory was 1.5 GB in the beginning and 2.2 GB in the end (delta: 733.0 MB). Free memory was 1.3 GB in the beginning and 2.2 GB in the end (delta: -833.2 MB). Peak memory consumption was 33.0 MB. Max. memory is 7.1 GB. * RCFGBuilder took 3858.69 ms. Allocated memory is still 2.2 GB. Free memory was 2.2 GB in the beginning and 2.0 GB in the end (delta: 128.6 MB). Peak memory consumption was 128.6 MB. Max. memory is 7.1 GB. * TraceAbstraction took 234157.84 ms. Allocated memory was 2.2 GB in the beginning and 4.1 GB in the end (delta: 1.9 GB). Free memory was 2.0 GB in the beginning and 3.5 GB in the end (delta: -1.5 GB). Peak memory consumption was 421.7 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResultAtElement [Line: 118]: Timeout (TraceAbstraction) Unable to prove that call of __VERIFIER_error() unreachable (line 118). Cancelled while BasicCegarLoop was analyzing trace of length 370 with TraceHistMax 4, while AbsIntCurrentIteration was generating AI predicates, while PredicateComparison was comparing new predicate (quantifier-free) to 3 known predicates. - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 255 locations, 1 error locations. TIMEOUT Result, 234.0s OverallTime, 8 OverallIterations, 4 TraceHistogramMax, 50.4s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 1637 SDtfs, 8091 SDslu, 1526 SDs, 0 SdLazy, 12224 SolverSat, 2172 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 43.9s Time, PredicateUnifierStatistics: 14 DeclaredPredicates, 1579 GetRequests, 1364 SyntacticMatches, 99 SemanticMatches, 116 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1103 ImplicationChecksByTransitivity, 6.8s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=2001occurred in iteration=7, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 159.7s AbstIntTime, 8 AbstIntIterations, 8 AbstIntStrong, 0.9951418514578098 AbsIntWeakeningRatio, 0.10682178741406663 AbsIntAvgWeakeningVarsNumRemoved, 642.6054997355897 AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.4s AutomataMinimizationTime, 7 MinimizatonAttempts, 343 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/Problem14_label48_true-unreach-call_false-termination.c_svcomp-Reach-64bit-ToothlessTaipan_Default-OldIcfg.epf_AutomizerCInline.xml/Csv-Benchmark-0-2018-09-15_12-14-19-586.csv Written .csv to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/csv/Problem14_label48_true-unreach-call_false-termination.c_svcomp-Reach-64bit-ToothlessTaipan_Default-OldIcfg.epf_AutomizerCInline.xml/Csv-TraceAbstractionBenchmarks-0-2018-09-15_12-14-19-586.csv Completed graceful shutdown