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_label50_true-unreach-call_false-termination.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-dace188-m [2018-09-15 12:10:33,489 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-09-15 12:10:33,491 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-09-15 12:10:33,514 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-09-15 12:10:33,515 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-09-15 12:10:33,516 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-09-15 12:10:33,518 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-09-15 12:10:33,520 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-09-15 12:10:33,522 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-09-15 12:10:33,523 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-09-15 12:10:33,524 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-09-15 12:10:33,524 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-09-15 12:10:33,525 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-09-15 12:10:33,526 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-09-15 12:10:33,527 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-09-15 12:10:33,528 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-09-15 12:10:33,529 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-09-15 12:10:33,531 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-09-15 12:10:33,533 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-09-15 12:10:33,534 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-09-15 12:10:33,535 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-09-15 12:10:33,537 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-09-15 12:10:33,539 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-09-15 12:10:33,540 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-09-15 12:10:33,540 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-09-15 12:10:33,543 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-09-15 12:10:33,544 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-09-15 12:10:33,548 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-09-15 12:10:33,549 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-09-15 12:10:33,552 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-09-15 12:10:33,553 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-09-15 12:10:33,553 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-09-15 12:10:33,554 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-09-15 12:10:33,554 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-09-15 12:10:33,557 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-09-15 12:10:33,558 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-09-15 12:10:33,558 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 12:10:33,591 INFO L110 SettingsManager]: Loading preferences was successful [2018-09-15 12:10:33,594 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-09-15 12:10:33,595 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-09-15 12:10:33,595 INFO L133 SettingsManager]: * User list type=DISABLED [2018-09-15 12:10:33,595 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-09-15 12:10:33,595 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-09-15 12:10:33,596 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-09-15 12:10:33,596 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-09-15 12:10:33,596 INFO L133 SettingsManager]: * Log string format=TERM [2018-09-15 12:10:33,596 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-09-15 12:10:33,597 INFO L133 SettingsManager]: * Interval Domain=false [2018-09-15 12:10:33,597 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-09-15 12:10:33,598 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-09-15 12:10:33,598 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-09-15 12:10:33,598 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-09-15 12:10:33,598 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-09-15 12:10:33,599 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-09-15 12:10:33,599 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-09-15 12:10:33,599 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-09-15 12:10:33,599 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-09-15 12:10:33,600 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-09-15 12:10:33,600 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-09-15 12:10:33,600 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-09-15 12:10:33,600 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-09-15 12:10:33,600 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-09-15 12:10:33,601 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-09-15 12:10:33,601 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-09-15 12:10:33,601 INFO L133 SettingsManager]: * Trace refinement strategy=TOOTHLESS_TAIPAN [2018-09-15 12:10:33,601 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-09-15 12:10:33,602 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-09-15 12:10:33,602 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-09-15 12:10:33,602 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-09-15 12:10:33,602 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-09-15 12:10:33,659 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-09-15 12:10:33,673 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-09-15 12:10:33,677 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-09-15 12:10:33,679 INFO L271 PluginConnector]: Initializing CDTParser... [2018-09-15 12:10:33,679 INFO L276 PluginConnector]: CDTParser initialized [2018-09-15 12:10:33,680 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem14_label50_true-unreach-call_false-termination.c [2018-09-15 12:10:34,056 INFO L221 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c1e7acbde/1597b62deeb74e1d9507022bb711c6de/FLAG4246faf69 [2018-09-15 12:10:34,346 INFO L277 CDTParser]: Found 1 translation units. [2018-09-15 12:10:34,347 INFO L159 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem14_label50_true-unreach-call_false-termination.c [2018-09-15 12:10:34,371 INFO L325 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c1e7acbde/1597b62deeb74e1d9507022bb711c6de/FLAG4246faf69 [2018-09-15 12:10:34,402 INFO L333 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c1e7acbde/1597b62deeb74e1d9507022bb711c6de [2018-09-15 12:10:34,416 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-09-15 12:10:34,420 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-09-15 12:10:34,421 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-09-15 12:10:34,422 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-09-15 12:10:34,430 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-09-15 12:10:34,431 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.09 12:10:34" (1/1) ... [2018-09-15 12:10:34,437 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@56aae051 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 12:10:34, skipping insertion in model container [2018-09-15 12:10:34,437 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.09 12:10:34" (1/1) ... [2018-09-15 12:10:34,451 INFO L160 ieTranslatorObserver]: Starting translation in SV-COMP mode [2018-09-15 12:10:35,122 INFO L170 PostProcessor]: Settings: Checked method=main [2018-09-15 12:10:35,149 INFO L424 MainDispatcher]: Starting main dispatcher in SV-COMP mode [2018-09-15 12:10:35,332 INFO L170 PostProcessor]: Settings: Checked method=main [2018-09-15 12:10:35,404 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 12:10:35 WrapperNode [2018-09-15 12:10:35,405 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-09-15 12:10:35,406 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-09-15 12:10:35,406 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-09-15 12:10:35,406 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-09-15 12:10:35,418 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 12:10:35" (1/1) ... [2018-09-15 12:10:35,461 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 12:10:35" (1/1) ... [2018-09-15 12:10:35,572 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-09-15 12:10:35,573 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-09-15 12:10:35,574 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-09-15 12:10:35,574 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-09-15 12:10:35,817 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 12:10:35" (1/1) ... [2018-09-15 12:10:35,818 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 12:10:35" (1/1) ... [2018-09-15 12:10:35,834 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 12:10:35" (1/1) ... [2018-09-15 12:10:35,835 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 12:10:35" (1/1) ... [2018-09-15 12:10:35,872 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 12:10:35" (1/1) ... [2018-09-15 12:10:35,901 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 12:10:35" (1/1) ... [2018-09-15 12:10:35,915 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 12:10:35" (1/1) ... [2018-09-15 12:10:35,926 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-09-15 12:10:35,927 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-09-15 12:10:35,927 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-09-15 12:10:35,927 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-09-15 12:10:35,928 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 12:10:35" (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 12:10:36,008 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-09-15 12:10:36,009 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-09-15 12:10:36,009 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2018-09-15 12:10:36,010 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2018-09-15 12:10:36,010 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-09-15 12:10:36,010 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-09-15 12:10:36,010 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-09-15 12:10:36,011 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-09-15 12:10:40,028 INFO L353 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-09-15 12:10:40,030 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.09 12:10:40 BoogieIcfgContainer [2018-09-15 12:10:40,030 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-09-15 12:10:40,033 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-09-15 12:10:40,034 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-09-15 12:10:40,041 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-09-15 12:10:40,042 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.09 12:10:34" (1/3) ... [2018-09-15 12:10:40,042 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@54161613 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.09 12:10:40, skipping insertion in model container [2018-09-15 12:10:40,043 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 12:10:35" (2/3) ... [2018-09-15 12:10:40,043 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@54161613 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.09 12:10:40, skipping insertion in model container [2018-09-15 12:10:40,043 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.09 12:10:40" (3/3) ... [2018-09-15 12:10:40,045 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem14_label50_true-unreach-call_false-termination.c [2018-09-15 12:10:40,054 INFO L137 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-09-15 12:10:40,063 INFO L149 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-09-15 12:10:40,127 INFO L130 ementStrategyFactory]: Using default assertion order modulation [2018-09-15 12:10:40,128 INFO L381 AbstractCegarLoop]: Interprodecural is true [2018-09-15 12:10:40,129 INFO L382 AbstractCegarLoop]: Hoare is true [2018-09-15 12:10:40,129 INFO L383 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-09-15 12:10:40,129 INFO L384 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-09-15 12:10:40,129 INFO L385 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-09-15 12:10:40,129 INFO L386 AbstractCegarLoop]: Difference is false [2018-09-15 12:10:40,130 INFO L387 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-09-15 12:10:40,130 INFO L392 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-09-15 12:10:40,178 INFO L276 IsEmpty]: Start isEmpty. Operand 255 states. [2018-09-15 12:10:40,185 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2018-09-15 12:10:40,186 INFO L368 BasicCegarLoop]: Found error trace [2018-09-15 12:10:40,187 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] [2018-09-15 12:10:40,188 INFO L423 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-15 12:10:40,192 INFO L82 PathProgramCache]: Analyzing trace with hash -50157732, now seen corresponding path program 1 times [2018-09-15 12:10:40,194 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-15 12:10:40,195 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 45 with the following transitions: [2018-09-15 12:10:40,198 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], [253], [255], [952], [956], [962], [966], [973], [974], [975], [977] [2018-09-15 12:10:40,256 INFO L148 AbstractInterpreter]: Using domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-09-15 12:10:40,256 INFO L101 FixpointEngine]: Starting fixpoint engine with domain CompoundDomain (maxUnwinding=3, maxParallelStates=2) [2018-09-15 12:10:41,495 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-15 12:10:41,497 INFO L272 AbstractInterpreter]: Visited 43 different actions 43 times. Never merged. Never widened. Never found a fixpoint. Largest state had 23 variables. [2018-09-15 12:10:41,515 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-15 12:10:42,103 INFO L232 lantSequenceWeakener]: Weakened 42 states. On average, predicates are now at 80.26% of their original sizes. [2018-09-15 12:10:42,104 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-15 12:10:42,406 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-15 12:10:42,408 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-15 12:10:42,408 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-09-15 12:10:42,409 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-15 12:10:42,417 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-09-15 12:10:42,424 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-09-15 12:10:42,425 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2018-09-15 12:10:42,428 INFO L87 Difference]: Start difference. First operand 255 states. Second operand 6 states. [2018-09-15 12:10:47,265 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-15 12:10:47,265 INFO L93 Difference]: Finished difference Result 693 states and 1229 transitions. [2018-09-15 12:10:47,266 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-09-15 12:10:47,268 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 44 [2018-09-15 12:10:47,269 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-15 12:10:47,286 INFO L225 Difference]: With dead ends: 693 [2018-09-15 12:10:47,287 INFO L226 Difference]: Without dead ends: 436 [2018-09-15 12:10:47,295 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 43 GetRequests, 39 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2018-09-15 12:10:47,314 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 436 states. [2018-09-15 12:10:47,374 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 436 to 434. [2018-09-15 12:10:47,376 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 434 states. [2018-09-15 12:10:47,379 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 434 states to 434 states and 615 transitions. [2018-09-15 12:10:47,381 INFO L78 Accepts]: Start accepts. Automaton has 434 states and 615 transitions. Word has length 44 [2018-09-15 12:10:47,382 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-15 12:10:47,382 INFO L480 AbstractCegarLoop]: Abstraction has 434 states and 615 transitions. [2018-09-15 12:10:47,382 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-09-15 12:10:47,382 INFO L276 IsEmpty]: Start isEmpty. Operand 434 states and 615 transitions. [2018-09-15 12:10:47,388 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2018-09-15 12:10:47,389 INFO L368 BasicCegarLoop]: Found error trace [2018-09-15 12:10:47,389 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 12:10:47,390 INFO L423 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-15 12:10:47,390 INFO L82 PathProgramCache]: Analyzing trace with hash -387762869, now seen corresponding path program 1 times [2018-09-15 12:10:47,390 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-15 12:10:47,390 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 130 with the following transitions: [2018-09-15 12:10:47,392 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], [253], [255], [258], [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 12:10:47,406 INFO L148 AbstractInterpreter]: Using domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-09-15 12:10:47,406 INFO L101 FixpointEngine]: Starting fixpoint engine with domain CompoundDomain (maxUnwinding=3, maxParallelStates=2) [2018-09-15 12:10:55,105 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-15 12:10:55,105 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 12:10:55,121 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-15 12:10:57,533 INFO L232 lantSequenceWeakener]: Weakened 127 states. On average, predicates are now at 78.36% of their original sizes. [2018-09-15 12:10:57,534 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-15 12:10:59,031 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-15 12:10:59,032 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-15 12:10:59,032 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2018-09-15 12:10:59,032 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-15 12:10:59,034 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2018-09-15 12:10:59,034 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2018-09-15 12:10:59,035 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=80, Unknown=0, NotChecked=0, Total=110 [2018-09-15 12:10:59,035 INFO L87 Difference]: Start difference. First operand 434 states and 615 transitions. Second operand 11 states. [2018-09-15 12:11:12,029 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-15 12:11:12,029 INFO L93 Difference]: Finished difference Result 1051 states and 1763 transitions. [2018-09-15 12:11:12,030 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2018-09-15 12:11:12,030 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 129 [2018-09-15 12:11:12,031 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-15 12:11:12,037 INFO L225 Difference]: With dead ends: 1051 [2018-09-15 12:11:12,037 INFO L226 Difference]: Without dead ends: 806 [2018-09-15 12:11:12,040 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 135 GetRequests, 87 SyntacticMatches, 32 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 264 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=74, Invalid=232, Unknown=0, NotChecked=0, Total=306 [2018-09-15 12:11:12,042 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 806 states. [2018-09-15 12:11:12,094 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 806 to 803. [2018-09-15 12:11:12,095 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 803 states. [2018-09-15 12:11:12,099 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 803 states to 803 states and 1002 transitions. [2018-09-15 12:11:12,100 INFO L78 Accepts]: Start accepts. Automaton has 803 states and 1002 transitions. Word has length 129 [2018-09-15 12:11:12,100 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-15 12:11:12,101 INFO L480 AbstractCegarLoop]: Abstraction has 803 states and 1002 transitions. [2018-09-15 12:11:12,101 INFO L481 AbstractCegarLoop]: Interpolant automaton has 11 states. [2018-09-15 12:11:12,101 INFO L276 IsEmpty]: Start isEmpty. Operand 803 states and 1002 transitions. [2018-09-15 12:11:12,105 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 156 [2018-09-15 12:11:12,105 INFO L368 BasicCegarLoop]: Found error trace [2018-09-15 12:11:12,106 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 12:11:12,106 INFO L423 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-15 12:11:12,106 INFO L82 PathProgramCache]: Analyzing trace with hash 2020577719, now seen corresponding path program 1 times [2018-09-15 12:11:12,107 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-15 12:11:12,107 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 156 with the following transitions: [2018-09-15 12:11:12,107 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], [253], [255], [258], [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 12:11:12,116 INFO L148 AbstractInterpreter]: Using domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-09-15 12:11:12,116 INFO L101 FixpointEngine]: Starting fixpoint engine with domain CompoundDomain (maxUnwinding=3, maxParallelStates=2) [2018-09-15 12:11:25,384 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-15 12:11:25,384 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 12:11:25,391 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-15 12:11:28,785 INFO L232 lantSequenceWeakener]: Weakened 153 states. On average, predicates are now at 78.18% of their original sizes. [2018-09-15 12:11:28,786 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-15 12:11:29,682 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-15 12:11:29,683 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-15 12:11:29,683 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2018-09-15 12:11:29,683 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-15 12:11:29,684 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2018-09-15 12:11:29,685 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2018-09-15 12:11:29,685 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=81, Unknown=0, NotChecked=0, Total=110 [2018-09-15 12:11:29,685 INFO L87 Difference]: Start difference. First operand 803 states and 1002 transitions. Second operand 11 states. [2018-09-15 12:11:39,043 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-15 12:11:39,044 INFO L93 Difference]: Finished difference Result 1236 states and 1786 transitions. [2018-09-15 12:11:39,047 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2018-09-15 12:11:39,047 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 155 [2018-09-15 12:11:39,048 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-15 12:11:39,054 INFO L225 Difference]: With dead ends: 1236 [2018-09-15 12:11:39,054 INFO L226 Difference]: Without dead ends: 991 [2018-09-15 12:11:39,055 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 162 GetRequests, 113 SyntacticMatches, 32 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 272 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=83, Invalid=259, Unknown=0, NotChecked=0, Total=342 [2018-09-15 12:11:39,056 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 991 states. [2018-09-15 12:11:39,093 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 991 to 988. [2018-09-15 12:11:39,093 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 988 states. [2018-09-15 12:11:39,098 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 988 states to 988 states and 1200 transitions. [2018-09-15 12:11:39,098 INFO L78 Accepts]: Start accepts. Automaton has 988 states and 1200 transitions. Word has length 155 [2018-09-15 12:11:39,099 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-15 12:11:39,099 INFO L480 AbstractCegarLoop]: Abstraction has 988 states and 1200 transitions. [2018-09-15 12:11:39,099 INFO L481 AbstractCegarLoop]: Interpolant automaton has 11 states. [2018-09-15 12:11:39,099 INFO L276 IsEmpty]: Start isEmpty. Operand 988 states and 1200 transitions. [2018-09-15 12:11:39,106 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 241 [2018-09-15 12:11:39,106 INFO L368 BasicCegarLoop]: Found error trace [2018-09-15 12:11:39,107 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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 12:11:39,107 INFO L423 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-15 12:11:39,108 INFO L82 PathProgramCache]: Analyzing trace with hash -1594197016, now seen corresponding path program 1 times [2018-09-15 12:11:39,108 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-15 12:11:39,108 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 241 with the following transitions: [2018-09-15 12:11:39,108 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], [253], [255], [258], [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 12:11:39,112 INFO L148 AbstractInterpreter]: Using domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-09-15 12:11:39,113 INFO L101 FixpointEngine]: Starting fixpoint engine with domain CompoundDomain (maxUnwinding=3, maxParallelStates=2) [2018-09-15 12:11:48,802 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-15 12:11:48,803 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 12:11:48,809 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-15 12:11:50,437 INFO L232 lantSequenceWeakener]: Weakened 238 states. On average, predicates are now at 77.88% of their original sizes. [2018-09-15 12:11:50,437 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-15 12:11:51,148 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-15 12:11:51,148 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-15 12:11:51,149 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2018-09-15 12:11:51,149 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-15 12:11:51,150 INFO L459 AbstractCegarLoop]: Interpolant automaton has 15 states [2018-09-15 12:11:51,150 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2018-09-15 12:11:51,150 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=55, Invalid=155, Unknown=0, NotChecked=0, Total=210 [2018-09-15 12:11:51,151 INFO L87 Difference]: Start difference. First operand 988 states and 1200 transitions. Second operand 15 states. [2018-09-15 12:12:03,710 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-15 12:12:03,711 INFO L93 Difference]: Finished difference Result 1967 states and 3058 transitions. [2018-09-15 12:12:03,718 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2018-09-15 12:12:03,719 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 240 [2018-09-15 12:12:03,720 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-15 12:12:03,732 INFO L225 Difference]: With dead ends: 1967 [2018-09-15 12:12:03,732 INFO L226 Difference]: Without dead ends: 1722 [2018-09-15 12:12:03,735 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 255 GetRequests, 226 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 12:12:03,736 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1722 states. [2018-09-15 12:12:03,789 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1722 to 1422. [2018-09-15 12:12:03,790 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1422 states. [2018-09-15 12:12:03,795 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1422 states to 1422 states and 1686 transitions. [2018-09-15 12:12:03,795 INFO L78 Accepts]: Start accepts. Automaton has 1422 states and 1686 transitions. Word has length 240 [2018-09-15 12:12:03,796 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-15 12:12:03,796 INFO L480 AbstractCegarLoop]: Abstraction has 1422 states and 1686 transitions. [2018-09-15 12:12:03,796 INFO L481 AbstractCegarLoop]: Interpolant automaton has 15 states. [2018-09-15 12:12:03,796 INFO L276 IsEmpty]: Start isEmpty. Operand 1422 states and 1686 transitions. [2018-09-15 12:12:03,804 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 266 [2018-09-15 12:12:03,804 INFO L368 BasicCegarLoop]: Found error trace [2018-09-15 12:12:03,804 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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 12:12:03,805 INFO L423 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-15 12:12:03,805 INFO L82 PathProgramCache]: Analyzing trace with hash 1987392715, now seen corresponding path program 1 times [2018-09-15 12:12:03,805 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-15 12:12:03,805 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 266 with the following transitions: [2018-09-15 12:12:03,806 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], [253], [255], [258], [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 12:12:03,823 INFO L148 AbstractInterpreter]: Using domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-09-15 12:12:03,823 INFO L101 FixpointEngine]: Starting fixpoint engine with domain CompoundDomain (maxUnwinding=3, maxParallelStates=2) [2018-09-15 12:12:16,842 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-09-15 12:12:32,752 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-15 12:12:32,752 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 12:12:32,761 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-15 12:12:36,531 INFO L232 lantSequenceWeakener]: Weakened 263 states. On average, predicates are now at 77.84% of their original sizes. [2018-09-15 12:12:36,532 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-15 12:12:37,425 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-15 12:12:37,426 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-15 12:12:37,426 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2018-09-15 12:12:37,427 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-15 12:12:37,427 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2018-09-15 12:12:37,428 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2018-09-15 12:12:37,428 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=81, Unknown=0, NotChecked=0, Total=110 [2018-09-15 12:12:37,428 INFO L87 Difference]: Start difference. First operand 1422 states and 1686 transitions. Second operand 11 states. [2018-09-15 12:12:45,979 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-15 12:12:45,979 INFO L93 Difference]: Finished difference Result 1861 states and 2476 transitions. [2018-09-15 12:12:45,980 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2018-09-15 12:12:45,980 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 265 [2018-09-15 12:12:45,981 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-15 12:12:45,988 INFO L225 Difference]: With dead ends: 1861 [2018-09-15 12:12:45,988 INFO L226 Difference]: Without dead ends: 1616 [2018-09-15 12:12:45,990 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 273 GetRequests, 223 SyntacticMatches, 32 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 281 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=90, Invalid=290, Unknown=0, NotChecked=0, Total=380 [2018-09-15 12:12:45,992 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1616 states. [2018-09-15 12:12:46,040 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1616 to 1609. [2018-09-15 12:12:46,040 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1609 states. [2018-09-15 12:12:46,045 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1609 states to 1609 states and 1904 transitions. [2018-09-15 12:12:46,046 INFO L78 Accepts]: Start accepts. Automaton has 1609 states and 1904 transitions. Word has length 265 [2018-09-15 12:12:46,047 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-15 12:12:46,047 INFO L480 AbstractCegarLoop]: Abstraction has 1609 states and 1904 transitions. [2018-09-15 12:12:46,047 INFO L481 AbstractCegarLoop]: Interpolant automaton has 11 states. [2018-09-15 12:12:46,047 INFO L276 IsEmpty]: Start isEmpty. Operand 1609 states and 1904 transitions. [2018-09-15 12:12:46,055 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 344 [2018-09-15 12:12:46,055 INFO L368 BasicCegarLoop]: Found error trace [2018-09-15 12:12:46,056 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, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-15 12:12:46,056 INFO L423 AbstractCegarLoop]: === Iteration 6 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-15 12:12:46,056 INFO L82 PathProgramCache]: Analyzing trace with hash 249486111, now seen corresponding path program 1 times [2018-09-15 12:12:46,056 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-15 12:12:46,057 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 344 with the following transitions: [2018-09-15 12:12:46,057 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], [253], [255], [258], [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 12:12:46,061 INFO L148 AbstractInterpreter]: Using domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-09-15 12:12:46,061 INFO L101 FixpointEngine]: Starting fixpoint engine with domain CompoundDomain (maxUnwinding=3, maxParallelStates=2) [2018-09-15 12:12:57,364 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-09-15 12:13:15,822 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-15 12:13:15,823 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 12:13:15,829 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-15 12:13:17,779 INFO L232 lantSequenceWeakener]: Weakened 341 states. On average, predicates are now at 77.72% of their original sizes. [2018-09-15 12:13:17,780 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-15 12:13:18,072 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-15 12:13:18,073 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-15 12:13:18,073 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2018-09-15 12:13:18,073 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-15 12:13:18,074 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2018-09-15 12:13:18,074 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2018-09-15 12:13:18,074 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2018-09-15 12:13:18,074 INFO L87 Difference]: Start difference. First operand 1609 states and 1904 transitions. Second operand 10 states. [2018-09-15 12:13:23,905 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-15 12:13:23,905 INFO L93 Difference]: Finished difference Result 2266 states and 2945 transitions. [2018-09-15 12:13:23,916 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2018-09-15 12:13:23,917 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 343 [2018-09-15 12:13:23,917 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-15 12:13:23,925 INFO L225 Difference]: With dead ends: 2266 [2018-09-15 12:13:23,926 INFO L226 Difference]: Without dead ends: 1834 [2018-09-15 12:13:23,928 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 350 GetRequests, 334 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 12:13:23,934 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1834 states. [2018-09-15 12:13:23,991 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1834 to 1816. [2018-09-15 12:13:23,991 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1816 states. [2018-09-15 12:13:23,997 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1816 states to 1816 states and 2160 transitions. [2018-09-15 12:13:23,998 INFO L78 Accepts]: Start accepts. Automaton has 1816 states and 2160 transitions. Word has length 343 [2018-09-15 12:13:23,999 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-15 12:13:23,999 INFO L480 AbstractCegarLoop]: Abstraction has 1816 states and 2160 transitions. [2018-09-15 12:13:23,999 INFO L481 AbstractCegarLoop]: Interpolant automaton has 10 states. [2018-09-15 12:13:23,999 INFO L276 IsEmpty]: Start isEmpty. Operand 1816 states and 2160 transitions. [2018-09-15 12:13:24,007 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 348 [2018-09-15 12:13:24,008 INFO L368 BasicCegarLoop]: Found error trace [2018-09-15 12:13:24,008 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, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-15 12:13:24,008 INFO L423 AbstractCegarLoop]: === Iteration 7 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-15 12:13:24,009 INFO L82 PathProgramCache]: Analyzing trace with hash 176393815, now seen corresponding path program 1 times [2018-09-15 12:13:24,009 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-15 12:13:24,009 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 348 with the following transitions: [2018-09-15 12:13:24,009 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], [253], [255], [258], [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 12:13:24,013 INFO L148 AbstractInterpreter]: Using domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-09-15 12:13:24,013 INFO L101 FixpointEngine]: Starting fixpoint engine with domain CompoundDomain (maxUnwinding=3, maxParallelStates=2) [2018-09-15 12:13:34,907 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-09-15 12:14:02,897 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-15 12:14:02,897 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 12:14:02,905 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-15 12:14:04,951 INFO L232 lantSequenceWeakener]: Weakened 345 states. On average, predicates are now at 77.72% of their original sizes. [2018-09-15 12:14:04,952 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-15 12:14:05,201 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-15 12:14:05,202 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-15 12:14:05,202 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2018-09-15 12:14:05,202 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-15 12:14:05,202 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2018-09-15 12:14:05,203 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2018-09-15 12:14:05,203 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2018-09-15 12:14:05,203 INFO L87 Difference]: Start difference. First operand 1816 states and 2160 transitions. Second operand 10 states. [2018-09-15 12:14:09,374 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-15 12:14:09,375 INFO L93 Difference]: Finished difference Result 2648 states and 3429 transitions. [2018-09-15 12:14:09,381 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2018-09-15 12:14:09,382 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 347 [2018-09-15 12:14:09,382 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-15 12:14:09,392 INFO L225 Difference]: With dead ends: 2648 [2018-09-15 12:14:09,392 INFO L226 Difference]: Without dead ends: 2011 [2018-09-15 12:14:09,395 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 354 GetRequests, 338 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 12:14:09,397 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2011 states. [2018-09-15 12:14:09,457 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2011 to 2001. [2018-09-15 12:14:09,457 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2001 states. [2018-09-15 12:14:09,463 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2001 states to 2001 states and 2378 transitions. [2018-09-15 12:14:09,464 INFO L78 Accepts]: Start accepts. Automaton has 2001 states and 2378 transitions. Word has length 347 [2018-09-15 12:14:09,464 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-15 12:14:09,465 INFO L480 AbstractCegarLoop]: Abstraction has 2001 states and 2378 transitions. [2018-09-15 12:14:09,465 INFO L481 AbstractCegarLoop]: Interpolant automaton has 10 states. [2018-09-15 12:14:09,465 INFO L276 IsEmpty]: Start isEmpty. Operand 2001 states and 2378 transitions. [2018-09-15 12:14:09,470 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 369 [2018-09-15 12:14:09,471 INFO L368 BasicCegarLoop]: Found error trace [2018-09-15 12:14:09,471 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, 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, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-15 12:14:09,471 INFO L423 AbstractCegarLoop]: === Iteration 8 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-15 12:14:09,472 INFO L82 PathProgramCache]: Analyzing trace with hash 1208852728, now seen corresponding path program 1 times [2018-09-15 12:14:09,472 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-15 12:14:09,472 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 369 with the following transitions: [2018-09-15 12:14:09,472 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], [253], [255], [258], [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 12:14:09,475 INFO L148 AbstractInterpreter]: Using domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-09-15 12:14:09,475 INFO L101 FixpointEngine]: Starting fixpoint engine with domain CompoundDomain (maxUnwinding=3, maxParallelStates=2) [2018-09-15 12:14:20,111 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-09-15 12:14:37,272 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-15 12:14:37,273 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 12:14:37,279 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-15 12:14:39,875 INFO L232 lantSequenceWeakener]: Weakened 366 states. On average, predicates are now at 77.69% of their original sizes. [2018-09-15 12:14:39,875 INFO L412 sIntCurrentIteration]: Unifying AI predicates Received shutdown request... [2018-09-15 12:14:40,033 WARN L549 AbstractCegarLoop]: Verification canceled [2018-09-15 12:14:40,039 WARN L206 ceAbstractionStarter]: Timeout [2018-09-15 12:14:40,039 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 15.09 12:14:40 BoogieIcfgContainer [2018-09-15 12:14:40,039 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-09-15 12:14:40,040 INFO L168 Benchmark]: Toolchain (without parser) took 245622.54 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 2.4 GB in the end (delta: -953.9 MB). Peak memory consumption was 1.7 GB. Max. memory is 7.1 GB. [2018-09-15 12:14:40,042 INFO L168 Benchmark]: CDTParser took 0.20 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 12:14:40,042 INFO L168 Benchmark]: CACSL2BoogieTranslator took 983.96 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.4 GB in the end (delta: 42.3 MB). Peak memory consumption was 42.3 MB. Max. memory is 7.1 GB. [2018-09-15 12:14:40,043 INFO L168 Benchmark]: Boogie Procedure Inliner took 166.94 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.4 GB in the end (delta: 10.6 MB). Peak memory consumption was 10.6 MB. Max. memory is 7.1 GB. [2018-09-15 12:14:40,044 INFO L168 Benchmark]: Boogie Preprocessor took 352.92 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 742.4 MB). Free memory was 1.4 GB in the beginning and 2.2 GB in the end (delta: -831.1 MB). Peak memory consumption was 33.1 MB. Max. memory is 7.1 GB. [2018-09-15 12:14:40,046 INFO L168 Benchmark]: RCFGBuilder took 4103.62 ms. Allocated memory is still 2.3 GB. Free memory was 2.2 GB in the beginning and 2.0 GB in the end (delta: 131.4 MB). Peak memory consumption was 131.4 MB. Max. memory is 7.1 GB. [2018-09-15 12:14:40,047 INFO L168 Benchmark]: TraceAbstraction took 240005.75 ms. Allocated memory was 2.3 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 2.4 GB in the end (delta: -307.1 MB). Peak memory consumption was 1.6 GB. Max. memory is 7.1 GB. [2018-09-15 12:14:40,052 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20 ms. Allocated memory is still 1.5 GB. Free memory is still 1.4 GB. There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 983.96 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.4 GB in the end (delta: 42.3 MB). Peak memory consumption was 42.3 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 166.94 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.4 GB in the end (delta: 10.6 MB). Peak memory consumption was 10.6 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 352.92 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 742.4 MB). Free memory was 1.4 GB in the beginning and 2.2 GB in the end (delta: -831.1 MB). Peak memory consumption was 33.1 MB. Max. memory is 7.1 GB. * RCFGBuilder took 4103.62 ms. Allocated memory is still 2.3 GB. Free memory was 2.2 GB in the beginning and 2.0 GB in the end (delta: 131.4 MB). Peak memory consumption was 131.4 MB. Max. memory is 7.1 GB. * TraceAbstraction took 240005.75 ms. Allocated memory was 2.3 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 2.4 GB in the end (delta: -307.1 MB). Peak memory consumption was 1.6 GB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResultAtElement [Line: 115]: Timeout (TraceAbstraction) Unable to prove that call of __VERIFIER_error() unreachable (line 115). Cancelled while BasicCegarLoop was analyzing trace of length 369 with TraceHistMax 4, while AbsIntCurrentIteration was generating AI predicates, while PredicateComparison was comparing new predicate (quantifier-free) to 8 known predicates. - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 255 locations, 1 error locations. TIMEOUT Result, 239.9s OverallTime, 8 OverallIterations, 4 TraceHistogramMax, 58.4s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 1637 SDtfs, 7298 SDslu, 2311 SDs, 0 SdLazy, 15627 SolverSat, 2152 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 51.2s Time, PredicateUnifierStatistics: 14 DeclaredPredicates, 1572 GetRequests, 1360 SyntacticMatches, 96 SemanticMatches, 116 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1087 ImplicationChecksByTransitivity, 6.5s 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, 157.4s AbstIntTime, 8 AbstIntIterations, 8 AbstIntStrong, 0.995121211421518 AbsIntWeakeningRatio, 0.10727562400424855 AbsIntAvgWeakeningVarsNumRemoved, 642.8040361125863 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_label50_true-unreach-call_false-termination.c_svcomp-Reach-64bit-ToothlessTaipan_Default-OldIcfg.epf_AutomizerCInline.xml/Csv-Benchmark-0-2018-09-15_12-14-40-066.csv Written .csv to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/csv/Problem14_label50_true-unreach-call_false-termination.c_svcomp-Reach-64bit-ToothlessTaipan_Default-OldIcfg.epf_AutomizerCInline.xml/Csv-TraceAbstractionBenchmarks-0-2018-09-15_12-14-40-066.csv Completed graceful shutdown