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_label36_true-unreach-call_false-termination.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-dace188-m [2018-09-15 12:08:25,557 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-09-15 12:08:25,560 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-09-15 12:08:25,578 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-09-15 12:08:25,578 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-09-15 12:08:25,579 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-09-15 12:08:25,580 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-09-15 12:08:25,582 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-09-15 12:08:25,583 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-09-15 12:08:25,584 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-09-15 12:08:25,585 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-09-15 12:08:25,585 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-09-15 12:08:25,586 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-09-15 12:08:25,587 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-09-15 12:08:25,589 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-09-15 12:08:25,589 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-09-15 12:08:25,590 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-09-15 12:08:25,592 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-09-15 12:08:25,594 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-09-15 12:08:25,595 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-09-15 12:08:25,597 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-09-15 12:08:25,598 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-09-15 12:08:25,600 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-09-15 12:08:25,601 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-09-15 12:08:25,601 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-09-15 12:08:25,602 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-09-15 12:08:25,603 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-09-15 12:08:25,603 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-09-15 12:08:25,604 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-09-15 12:08:25,605 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-09-15 12:08:25,606 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-09-15 12:08:25,606 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-09-15 12:08:25,607 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-09-15 12:08:25,607 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-09-15 12:08:25,608 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-09-15 12:08:25,609 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-09-15 12:08:25,609 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 12:08:25,627 INFO L110 SettingsManager]: Loading preferences was successful [2018-09-15 12:08:25,627 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-09-15 12:08:25,628 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-09-15 12:08:25,628 INFO L133 SettingsManager]: * User list type=DISABLED [2018-09-15 12:08:25,628 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-09-15 12:08:25,629 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-09-15 12:08:25,629 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-09-15 12:08:25,629 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-09-15 12:08:25,629 INFO L133 SettingsManager]: * Log string format=TERM [2018-09-15 12:08:25,629 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-09-15 12:08:25,630 INFO L133 SettingsManager]: * Interval Domain=false [2018-09-15 12:08:25,630 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-09-15 12:08:25,631 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-09-15 12:08:25,631 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-09-15 12:08:25,631 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-09-15 12:08:25,631 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-09-15 12:08:25,631 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-09-15 12:08:25,632 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-09-15 12:08:25,632 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-09-15 12:08:25,632 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-09-15 12:08:25,632 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-09-15 12:08:25,632 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-09-15 12:08:25,633 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-09-15 12:08:25,633 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-09-15 12:08:25,633 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-09-15 12:08:25,633 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-09-15 12:08:25,633 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-09-15 12:08:25,634 INFO L133 SettingsManager]: * Trace refinement strategy=TOOTHLESS_TAIPAN [2018-09-15 12:08:25,634 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-09-15 12:08:25,634 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-09-15 12:08:25,634 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-09-15 12:08:25,634 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-09-15 12:08:25,635 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-09-15 12:08:25,679 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-09-15 12:08:25,695 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-09-15 12:08:25,699 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-09-15 12:08:25,700 INFO L271 PluginConnector]: Initializing CDTParser... [2018-09-15 12:08:25,701 INFO L276 PluginConnector]: CDTParser initialized [2018-09-15 12:08:25,702 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem14_label36_true-unreach-call_false-termination.c [2018-09-15 12:08:26,052 INFO L221 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8e3ea06f1/9e1210356c964fa6adfa0ec28241fcb9/FLAGbf79e4c4b [2018-09-15 12:08:26,366 INFO L277 CDTParser]: Found 1 translation units. [2018-09-15 12:08:26,373 INFO L159 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem14_label36_true-unreach-call_false-termination.c [2018-09-15 12:08:26,403 INFO L325 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8e3ea06f1/9e1210356c964fa6adfa0ec28241fcb9/FLAGbf79e4c4b [2018-09-15 12:08:26,426 INFO L333 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8e3ea06f1/9e1210356c964fa6adfa0ec28241fcb9 [2018-09-15 12:08:26,440 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-09-15 12:08:26,444 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-09-15 12:08:26,447 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-09-15 12:08:26,447 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-09-15 12:08:26,457 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-09-15 12:08:26,458 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.09 12:08:26" (1/1) ... [2018-09-15 12:08:26,461 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5569bc79 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 12:08:26, skipping insertion in model container [2018-09-15 12:08:26,461 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.09 12:08:26" (1/1) ... [2018-09-15 12:08:26,474 INFO L160 ieTranslatorObserver]: Starting translation in SV-COMP mode [2018-09-15 12:08:27,085 INFO L170 PostProcessor]: Settings: Checked method=main [2018-09-15 12:08:27,107 INFO L424 MainDispatcher]: Starting main dispatcher in SV-COMP mode [2018-09-15 12:08:27,261 INFO L170 PostProcessor]: Settings: Checked method=main [2018-09-15 12:08:27,326 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 12:08:27 WrapperNode [2018-09-15 12:08:27,327 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-09-15 12:08:27,328 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-09-15 12:08:27,328 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-09-15 12:08:27,328 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-09-15 12:08:27,339 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 12:08:27" (1/1) ... [2018-09-15 12:08:27,367 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 12:08:27" (1/1) ... [2018-09-15 12:08:27,473 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-09-15 12:08:27,474 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-09-15 12:08:27,474 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-09-15 12:08:27,474 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-09-15 12:08:27,676 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 12:08:27" (1/1) ... [2018-09-15 12:08:27,676 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 12:08:27" (1/1) ... [2018-09-15 12:08:27,691 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 12:08:27" (1/1) ... [2018-09-15 12:08:27,691 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 12:08:27" (1/1) ... [2018-09-15 12:08:27,744 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 12:08:27" (1/1) ... [2018-09-15 12:08:27,775 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 12:08:27" (1/1) ... [2018-09-15 12:08:27,797 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 12:08:27" (1/1) ... [2018-09-15 12:08:27,812 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-09-15 12:08:27,813 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-09-15 12:08:27,813 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-09-15 12:08:27,814 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-09-15 12:08:27,815 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 12:08:27" (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 12:08:27,888 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-09-15 12:08:27,889 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-09-15 12:08:27,889 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2018-09-15 12:08:27,889 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2018-09-15 12:08:27,890 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-09-15 12:08:27,890 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-09-15 12:08:27,890 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-09-15 12:08:27,890 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-09-15 12:08:31,592 INFO L353 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-09-15 12:08:31,593 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.09 12:08:31 BoogieIcfgContainer [2018-09-15 12:08:31,593 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-09-15 12:08:31,594 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-09-15 12:08:31,595 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-09-15 12:08:31,598 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-09-15 12:08:31,599 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.09 12:08:26" (1/3) ... [2018-09-15 12:08:31,599 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5341d711 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.09 12:08:31, skipping insertion in model container [2018-09-15 12:08:31,600 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 12:08:27" (2/3) ... [2018-09-15 12:08:31,600 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5341d711 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.09 12:08:31, skipping insertion in model container [2018-09-15 12:08:31,600 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.09 12:08:31" (3/3) ... [2018-09-15 12:08:31,602 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem14_label36_true-unreach-call_false-termination.c [2018-09-15 12:08:31,612 INFO L137 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-09-15 12:08:31,620 INFO L149 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-09-15 12:08:31,673 INFO L130 ementStrategyFactory]: Using default assertion order modulation [2018-09-15 12:08:31,674 INFO L381 AbstractCegarLoop]: Interprodecural is true [2018-09-15 12:08:31,675 INFO L382 AbstractCegarLoop]: Hoare is true [2018-09-15 12:08:31,675 INFO L383 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-09-15 12:08:31,675 INFO L384 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-09-15 12:08:31,675 INFO L385 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-09-15 12:08:31,675 INFO L386 AbstractCegarLoop]: Difference is false [2018-09-15 12:08:31,676 INFO L387 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-09-15 12:08:31,676 INFO L392 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-09-15 12:08:31,703 INFO L276 IsEmpty]: Start isEmpty. Operand 255 states. [2018-09-15 12:08:31,712 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2018-09-15 12:08:31,713 INFO L368 BasicCegarLoop]: Found error trace [2018-09-15 12:08:31,714 INFO L376 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-15 12:08:31,717 INFO L423 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-15 12:08:31,722 INFO L82 PathProgramCache]: Analyzing trace with hash -601836047, now seen corresponding path program 1 times [2018-09-15 12:08:31,725 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-15 12:08:31,726 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 56 with the following transitions: [2018-09-15 12:08:31,729 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], [265], [273], [281], [289], [297], [305], [313], [321], [329], [337], [341], [343], [952], [956], [962], [966], [973], [974], [975], [977] [2018-09-15 12:08:31,789 INFO L148 AbstractInterpreter]: Using domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-09-15 12:08:31,789 INFO L101 FixpointEngine]: Starting fixpoint engine with domain CompoundDomain (maxUnwinding=3, maxParallelStates=2) [2018-09-15 12:08:33,218 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-15 12:08:33,220 INFO L272 AbstractInterpreter]: Visited 54 different actions 54 times. Never merged. Never widened. Never found a fixpoint. Largest state had 23 variables. [2018-09-15 12:08:33,234 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-15 12:08:34,023 INFO L232 lantSequenceWeakener]: Weakened 53 states. On average, predicates are now at 80.58% of their original sizes. [2018-09-15 12:08:34,023 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-15 12:08:34,309 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-15 12:08:34,311 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-15 12:08:34,311 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-09-15 12:08:34,311 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-15 12:08:34,317 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-09-15 12:08:34,325 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-09-15 12:08:34,325 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2018-09-15 12:08:34,328 INFO L87 Difference]: Start difference. First operand 255 states. Second operand 6 states. [2018-09-15 12:08:37,944 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-15 12:08:37,945 INFO L93 Difference]: Finished difference Result 693 states and 1229 transitions. [2018-09-15 12:08:37,947 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-09-15 12:08:37,949 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 55 [2018-09-15 12:08:37,950 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-15 12:08:37,967 INFO L225 Difference]: With dead ends: 693 [2018-09-15 12:08:37,967 INFO L226 Difference]: Without dead ends: 436 [2018-09-15 12:08:37,975 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 54 GetRequests, 50 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 12:08:37,995 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 436 states. [2018-09-15 12:08:38,055 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 436 to 434. [2018-09-15 12:08:38,057 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 434 states. [2018-09-15 12:08:38,060 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 434 states to 434 states and 615 transitions. [2018-09-15 12:08:38,062 INFO L78 Accepts]: Start accepts. Automaton has 434 states and 615 transitions. Word has length 55 [2018-09-15 12:08:38,062 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-15 12:08:38,063 INFO L480 AbstractCegarLoop]: Abstraction has 434 states and 615 transitions. [2018-09-15 12:08:38,063 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-09-15 12:08:38,063 INFO L276 IsEmpty]: Start isEmpty. Operand 434 states and 615 transitions. [2018-09-15 12:08:38,070 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 141 [2018-09-15 12:08:38,070 INFO L368 BasicCegarLoop]: Found error trace [2018-09-15 12:08:38,071 INFO L376 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2018-09-15 12:08:38,071 INFO L423 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-15 12:08:38,072 INFO L82 PathProgramCache]: Analyzing trace with hash -848263901, now seen corresponding path program 1 times [2018-09-15 12:08:38,072 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-15 12:08:38,072 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 141 with the following transitions: [2018-09-15 12:08:38,073 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], [265], [273], [281], [289], [297], [305], [313], [321], [329], [337], [341], [343], [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 12:08:38,079 INFO L148 AbstractInterpreter]: Using domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-09-15 12:08:38,079 INFO L101 FixpointEngine]: Starting fixpoint engine with domain CompoundDomain (maxUnwinding=3, maxParallelStates=2) [2018-09-15 12:08:46,018 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-15 12:08:46,018 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 12:08:46,041 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-15 12:08:48,933 INFO L232 lantSequenceWeakener]: Weakened 138 states. On average, predicates are now at 78.64% of their original sizes. [2018-09-15 12:08:48,934 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-15 12:08:50,427 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-15 12:08:50,427 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-15 12:08:50,428 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2018-09-15 12:08:50,428 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-15 12:08:50,430 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2018-09-15 12:08:50,431 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2018-09-15 12:08:50,431 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=80, Unknown=0, NotChecked=0, Total=110 [2018-09-15 12:08:50,432 INFO L87 Difference]: Start difference. First operand 434 states and 615 transitions. Second operand 11 states. [2018-09-15 12:08:59,314 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-15 12:08:59,314 INFO L93 Difference]: Finished difference Result 1051 states and 1763 transitions. [2018-09-15 12:08:59,315 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2018-09-15 12:08:59,315 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 140 [2018-09-15 12:08:59,316 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-15 12:08:59,325 INFO L225 Difference]: With dead ends: 1051 [2018-09-15 12:08:59,325 INFO L226 Difference]: Without dead ends: 806 [2018-09-15 12:08:59,329 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 146 GetRequests, 87 SyntacticMatches, 43 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 286 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=74, Invalid=232, Unknown=0, NotChecked=0, Total=306 [2018-09-15 12:08:59,331 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 806 states. [2018-09-15 12:08:59,390 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 806 to 803. [2018-09-15 12:08:59,391 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 803 states. [2018-09-15 12:08:59,395 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 803 states to 803 states and 1002 transitions. [2018-09-15 12:08:59,396 INFO L78 Accepts]: Start accepts. Automaton has 803 states and 1002 transitions. Word has length 140 [2018-09-15 12:08:59,397 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-15 12:08:59,397 INFO L480 AbstractCegarLoop]: Abstraction has 803 states and 1002 transitions. [2018-09-15 12:08:59,397 INFO L481 AbstractCegarLoop]: Interpolant automaton has 11 states. [2018-09-15 12:08:59,397 INFO L276 IsEmpty]: Start isEmpty. Operand 803 states and 1002 transitions. [2018-09-15 12:08:59,402 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 167 [2018-09-15 12:08:59,403 INFO L368 BasicCegarLoop]: Found error trace [2018-09-15 12:08:59,403 INFO L376 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2018-09-15 12:08:59,403 INFO L423 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-15 12:08:59,404 INFO L82 PathProgramCache]: Analyzing trace with hash -1594892809, now seen corresponding path program 1 times [2018-09-15 12:08:59,404 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-15 12:08:59,404 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 167 with the following transitions: [2018-09-15 12:08:59,405 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], [265], [273], [281], [289], [297], [305], [313], [321], [329], [337], [341], [343], [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 12:08:59,411 INFO L148 AbstractInterpreter]: Using domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-09-15 12:08:59,411 INFO L101 FixpointEngine]: Starting fixpoint engine with domain CompoundDomain (maxUnwinding=3, maxParallelStates=2) [2018-09-15 12:09:12,099 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-15 12:09:12,099 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 12:09:12,104 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-15 12:09:15,383 INFO L232 lantSequenceWeakener]: Weakened 164 states. On average, predicates are now at 78.42% of their original sizes. [2018-09-15 12:09:15,383 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-15 12:09:16,452 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-15 12:09:16,452 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-15 12:09:16,453 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2018-09-15 12:09:16,453 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-15 12:09:16,454 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2018-09-15 12:09:16,455 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2018-09-15 12:09:16,455 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=81, Unknown=0, NotChecked=0, Total=110 [2018-09-15 12:09:16,455 INFO L87 Difference]: Start difference. First operand 803 states and 1002 transitions. Second operand 11 states. [2018-09-15 12:09:23,035 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-15 12:09:23,035 INFO L93 Difference]: Finished difference Result 1236 states and 1786 transitions. [2018-09-15 12:09:23,038 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2018-09-15 12:09:23,038 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 166 [2018-09-15 12:09:23,039 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-15 12:09:23,049 INFO L225 Difference]: With dead ends: 1236 [2018-09-15 12:09:23,050 INFO L226 Difference]: Without dead ends: 991 [2018-09-15 12:09:23,051 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 173 GetRequests, 113 SyntacticMatches, 43 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 349 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=83, Invalid=259, Unknown=0, NotChecked=0, Total=342 [2018-09-15 12:09:23,052 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 991 states. [2018-09-15 12:09:23,092 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 991 to 988. [2018-09-15 12:09:23,092 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 988 states. [2018-09-15 12:09:23,097 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 988 states to 988 states and 1200 transitions. [2018-09-15 12:09:23,098 INFO L78 Accepts]: Start accepts. Automaton has 988 states and 1200 transitions. Word has length 166 [2018-09-15 12:09:23,098 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-15 12:09:23,098 INFO L480 AbstractCegarLoop]: Abstraction has 988 states and 1200 transitions. [2018-09-15 12:09:23,099 INFO L481 AbstractCegarLoop]: Interpolant automaton has 11 states. [2018-09-15 12:09:23,099 INFO L276 IsEmpty]: Start isEmpty. Operand 988 states and 1200 transitions. [2018-09-15 12:09:23,107 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 252 [2018-09-15 12:09:23,107 INFO L368 BasicCegarLoop]: Found error trace [2018-09-15 12:09:23,108 INFO L376 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 12:09:23,108 INFO L423 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-15 12:09:23,109 INFO L82 PathProgramCache]: Analyzing trace with hash 268196997, now seen corresponding path program 1 times [2018-09-15 12:09:23,109 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-15 12:09:23,109 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 252 with the following transitions: [2018-09-15 12:09:23,111 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], [265], [273], [281], [289], [297], [305], [313], [321], [329], [337], [341], [343], [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 12:09:23,122 INFO L148 AbstractInterpreter]: Using domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-09-15 12:09:23,123 INFO L101 FixpointEngine]: Starting fixpoint engine with domain CompoundDomain (maxUnwinding=3, maxParallelStates=2) [2018-09-15 12:09:34,226 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-15 12:09:34,226 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 12:09:34,235 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-15 12:09:35,579 INFO L232 lantSequenceWeakener]: Weakened 249 states. On average, predicates are now at 78.05% of their original sizes. [2018-09-15 12:09:35,579 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-15 12:09:36,065 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-15 12:09:36,066 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-15 12:09:36,066 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2018-09-15 12:09:36,066 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-15 12:09:36,067 INFO L459 AbstractCegarLoop]: Interpolant automaton has 15 states [2018-09-15 12:09:36,067 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2018-09-15 12:09:36,067 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=55, Invalid=155, Unknown=0, NotChecked=0, Total=210 [2018-09-15 12:09:36,068 INFO L87 Difference]: Start difference. First operand 988 states and 1200 transitions. Second operand 15 states. [2018-09-15 12:09:47,059 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-15 12:09:47,059 INFO L93 Difference]: Finished difference Result 1967 states and 3058 transitions. [2018-09-15 12:09:47,061 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2018-09-15 12:09:47,061 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 251 [2018-09-15 12:09:47,062 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-15 12:09:47,075 INFO L225 Difference]: With dead ends: 1967 [2018-09-15 12:09:47,075 INFO L226 Difference]: Without dead ends: 1722 [2018-09-15 12:09:47,078 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 266 GetRequests, 237 SyntacticMatches, 0 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 187 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=208, Invalid=722, Unknown=0, NotChecked=0, Total=930 [2018-09-15 12:09:47,080 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1722 states. [2018-09-15 12:09:47,126 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1722 to 1422. [2018-09-15 12:09:47,126 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1422 states. [2018-09-15 12:09:47,132 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1422 states to 1422 states and 1686 transitions. [2018-09-15 12:09:47,132 INFO L78 Accepts]: Start accepts. Automaton has 1422 states and 1686 transitions. Word has length 251 [2018-09-15 12:09:47,133 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-15 12:09:47,133 INFO L480 AbstractCegarLoop]: Abstraction has 1422 states and 1686 transitions. [2018-09-15 12:09:47,133 INFO L481 AbstractCegarLoop]: Interpolant automaton has 15 states. [2018-09-15 12:09:47,133 INFO L276 IsEmpty]: Start isEmpty. Operand 1422 states and 1686 transitions. [2018-09-15 12:09:47,139 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 277 [2018-09-15 12:09:47,139 INFO L368 BasicCegarLoop]: Found error trace [2018-09-15 12:09:47,139 INFO L376 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-15 12:09:47,140 INFO L423 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-15 12:09:47,140 INFO L82 PathProgramCache]: Analyzing trace with hash 983793474, now seen corresponding path program 1 times [2018-09-15 12:09:47,140 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-15 12:09:47,140 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 277 with the following transitions: [2018-09-15 12:09:47,141 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], [265], [273], [281], [289], [297], [305], [313], [321], [329], [337], [341], [343], [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 12:09:47,147 INFO L148 AbstractInterpreter]: Using domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-09-15 12:09:47,147 INFO L101 FixpointEngine]: Starting fixpoint engine with domain CompoundDomain (maxUnwinding=3, maxParallelStates=2) [2018-09-15 12:10:00,536 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-09-15 12:10:17,688 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-15 12:10:17,688 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 12:10:17,692 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-15 12:10:21,152 INFO L232 lantSequenceWeakener]: Weakened 274 states. On average, predicates are now at 78% of their original sizes. [2018-09-15 12:10:21,152 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-15 12:10:22,153 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-15 12:10:22,153 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-15 12:10:22,154 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2018-09-15 12:10:22,154 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-15 12:10:22,155 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2018-09-15 12:10:22,155 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2018-09-15 12:10:22,155 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=81, Unknown=0, NotChecked=0, Total=110 [2018-09-15 12:10:22,156 INFO L87 Difference]: Start difference. First operand 1422 states and 1686 transitions. Second operand 11 states. [2018-09-15 12:10:27,680 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-15 12:10:27,681 INFO L93 Difference]: Finished difference Result 1861 states and 2476 transitions. [2018-09-15 12:10:27,682 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2018-09-15 12:10:27,682 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 276 [2018-09-15 12:10:27,683 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-15 12:10:27,690 INFO L225 Difference]: With dead ends: 1861 [2018-09-15 12:10:27,691 INFO L226 Difference]: Without dead ends: 1616 [2018-09-15 12:10:27,693 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 284 GetRequests, 223 SyntacticMatches, 43 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 358 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=90, Invalid=290, Unknown=0, NotChecked=0, Total=380 [2018-09-15 12:10:27,694 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1616 states. [2018-09-15 12:10:27,740 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1616 to 1609. [2018-09-15 12:10:27,741 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1609 states. [2018-09-15 12:10:27,747 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1609 states to 1609 states and 1904 transitions. [2018-09-15 12:10:27,748 INFO L78 Accepts]: Start accepts. Automaton has 1609 states and 1904 transitions. Word has length 276 [2018-09-15 12:10:27,748 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-15 12:10:27,748 INFO L480 AbstractCegarLoop]: Abstraction has 1609 states and 1904 transitions. [2018-09-15 12:10:27,749 INFO L481 AbstractCegarLoop]: Interpolant automaton has 11 states. [2018-09-15 12:10:27,749 INFO L276 IsEmpty]: Start isEmpty. Operand 1609 states and 1904 transitions. [2018-09-15 12:10:27,757 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 355 [2018-09-15 12:10:27,757 INFO L368 BasicCegarLoop]: Found error trace [2018-09-15 12:10:27,758 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, 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, 2, 2, 2, 2, 2, 2, 2, 2, 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 12:10:27,758 INFO L423 AbstractCegarLoop]: === Iteration 6 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-15 12:10:27,758 INFO L82 PathProgramCache]: Analyzing trace with hash -797431027, now seen corresponding path program 1 times [2018-09-15 12:10:27,759 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-15 12:10:27,759 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 355 with the following transitions: [2018-09-15 12:10:27,759 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], [265], [273], [281], [289], [297], [305], [313], [321], [329], [337], [341], [343], [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 12:10:27,763 INFO L148 AbstractInterpreter]: Using domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-09-15 12:10:27,764 INFO L101 FixpointEngine]: Starting fixpoint engine with domain CompoundDomain (maxUnwinding=3, maxParallelStates=2) [2018-09-15 12:10:40,732 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-09-15 12:11:00,369 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-15 12:11:00,369 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 12:11:00,372 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-15 12:11:02,352 INFO L232 lantSequenceWeakener]: Weakened 352 states. On average, predicates are now at 77.85% of their original sizes. [2018-09-15 12:11:02,353 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-15 12:11:02,743 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-15 12:11:02,743 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-15 12:11:02,743 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2018-09-15 12:11:02,743 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-15 12:11:02,744 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2018-09-15 12:11:02,744 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2018-09-15 12:11:02,744 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2018-09-15 12:11:02,744 INFO L87 Difference]: Start difference. First operand 1609 states and 1904 transitions. Second operand 10 states. [2018-09-15 12:11:11,033 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-15 12:11:11,034 INFO L93 Difference]: Finished difference Result 2266 states and 2945 transitions. [2018-09-15 12:11:11,034 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2018-09-15 12:11:11,035 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 354 [2018-09-15 12:11:11,036 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-15 12:11:11,045 INFO L225 Difference]: With dead ends: 2266 [2018-09-15 12:11:11,045 INFO L226 Difference]: Without dead ends: 1834 [2018-09-15 12:11:11,048 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 361 GetRequests, 345 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 41 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=74, Invalid=232, Unknown=0, NotChecked=0, Total=306 [2018-09-15 12:11:11,050 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1834 states. [2018-09-15 12:11:11,105 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1834 to 1816. [2018-09-15 12:11:11,105 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1816 states. [2018-09-15 12:11:11,112 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1816 states to 1816 states and 2160 transitions. [2018-09-15 12:11:11,113 INFO L78 Accepts]: Start accepts. Automaton has 1816 states and 2160 transitions. Word has length 354 [2018-09-15 12:11:11,113 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-15 12:11:11,114 INFO L480 AbstractCegarLoop]: Abstraction has 1816 states and 2160 transitions. [2018-09-15 12:11:11,114 INFO L481 AbstractCegarLoop]: Interpolant automaton has 10 states. [2018-09-15 12:11:11,114 INFO L276 IsEmpty]: Start isEmpty. Operand 1816 states and 2160 transitions. [2018-09-15 12:11:11,119 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 359 [2018-09-15 12:11:11,120 INFO L368 BasicCegarLoop]: Found error trace [2018-09-15 12:11:11,120 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, 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, 2, 2, 2, 2, 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 12:11:11,120 INFO L423 AbstractCegarLoop]: === Iteration 7 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-15 12:11:11,121 INFO L82 PathProgramCache]: Analyzing trace with hash -1953673899, now seen corresponding path program 1 times [2018-09-15 12:11:11,121 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-15 12:11:11,121 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 359 with the following transitions: [2018-09-15 12:11:11,121 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], [265], [273], [281], [289], [297], [305], [313], [321], [329], [337], [341], [343], [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 12:11:11,125 INFO L148 AbstractInterpreter]: Using domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-09-15 12:11:11,125 INFO L101 FixpointEngine]: Starting fixpoint engine with domain CompoundDomain (maxUnwinding=3, maxParallelStates=2) [2018-09-15 12:11:23,216 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-09-15 12:11:54,677 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-15 12:11:54,678 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 12:11:54,684 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-15 12:11:56,722 INFO L232 lantSequenceWeakener]: Weakened 356 states. On average, predicates are now at 77.84% of their original sizes. [2018-09-15 12:11:56,722 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-15 12:11:56,991 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-15 12:11:56,991 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-15 12:11:56,992 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2018-09-15 12:11:56,992 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-15 12:11:56,992 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2018-09-15 12:11:56,993 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2018-09-15 12:11:56,993 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2018-09-15 12:11:56,993 INFO L87 Difference]: Start difference. First operand 1816 states and 2160 transitions. Second operand 10 states. [2018-09-15 12:12:04,435 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-15 12:12:04,435 INFO L93 Difference]: Finished difference Result 2648 states and 3429 transitions. [2018-09-15 12:12:04,440 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2018-09-15 12:12:04,441 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 358 [2018-09-15 12:12:04,442 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-15 12:12:04,450 INFO L225 Difference]: With dead ends: 2648 [2018-09-15 12:12:04,450 INFO L226 Difference]: Without dead ends: 2011 [2018-09-15 12:12:04,453 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 365 GetRequests, 349 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 12:12:04,454 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2011 states. [2018-09-15 12:12:04,515 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2011 to 2001. [2018-09-15 12:12:04,516 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2001 states. [2018-09-15 12:12:04,523 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2001 states to 2001 states and 2378 transitions. [2018-09-15 12:12:04,523 INFO L78 Accepts]: Start accepts. Automaton has 2001 states and 2378 transitions. Word has length 358 [2018-09-15 12:12:04,524 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-15 12:12:04,524 INFO L480 AbstractCegarLoop]: Abstraction has 2001 states and 2378 transitions. [2018-09-15 12:12:04,524 INFO L481 AbstractCegarLoop]: Interpolant automaton has 10 states. [2018-09-15 12:12:04,524 INFO L276 IsEmpty]: Start isEmpty. Operand 2001 states and 2378 transitions. [2018-09-15 12:12:04,530 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 380 [2018-09-15 12:12:04,530 INFO L368 BasicCegarLoop]: Found error trace [2018-09-15 12:12:04,531 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, 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, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-15 12:12:04,531 INFO L423 AbstractCegarLoop]: === Iteration 8 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-15 12:12:04,531 INFO L82 PathProgramCache]: Analyzing trace with hash 929519350, now seen corresponding path program 1 times [2018-09-15 12:12:04,531 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-15 12:12:04,531 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 380 with the following transitions: [2018-09-15 12:12:04,532 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], [265], [273], [281], [289], [297], [305], [313], [321], [329], [337], [341], [343], [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 12:12:04,535 INFO L148 AbstractInterpreter]: Using domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-09-15 12:12:04,535 INFO L101 FixpointEngine]: Starting fixpoint engine with domain CompoundDomain (maxUnwinding=3, maxParallelStates=2) [2018-09-15 12:12:16,860 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-09-15 12:12:36,034 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-15 12:12:36,034 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 12:12:36,043 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates Received shutdown request... [2018-09-15 12:12:38,619 INFO L232 lantSequenceWeakener]: Weakened 377 states. On average, predicates are now at 77.81% of their original sizes. [2018-09-15 12:12:38,619 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-15 12:12:38,633 WARN L549 AbstractCegarLoop]: Verification canceled [2018-09-15 12:12:38,637 WARN L206 ceAbstractionStarter]: Timeout [2018-09-15 12:12:38,637 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 15.09 12:12:38 BoogieIcfgContainer [2018-09-15 12:12:38,637 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-09-15 12:12:38,638 INFO L168 Benchmark]: Toolchain (without parser) took 252197.48 ms. Allocated memory was 1.5 GB in the beginning and 4.2 GB in the end (delta: 2.7 GB). Free memory was 1.4 GB in the beginning and 3.1 GB in the end (delta: -1.7 GB). Peak memory consumption was 996.5 MB. Max. memory is 7.1 GB. [2018-09-15 12:12:38,640 INFO L168 Benchmark]: CDTParser took 0.20 ms. Allocated memory is still 1.5 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-09-15 12:12:38,641 INFO L168 Benchmark]: CACSL2BoogieTranslator took 880.28 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: 44.9 MB). Peak memory consumption was 44.9 MB. Max. memory is 7.1 GB. [2018-09-15 12:12:38,641 INFO L168 Benchmark]: Boogie Procedure Inliner took 145.33 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 12:12:38,642 INFO L168 Benchmark]: Boogie Preprocessor took 339.22 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 771.2 MB). Free memory was 1.4 GB in the beginning and 2.2 GB in the end (delta: -872.2 MB). Peak memory consumption was 32.9 MB. Max. memory is 7.1 GB. [2018-09-15 12:12:38,643 INFO L168 Benchmark]: RCFGBuilder took 3779.93 ms. Allocated memory is still 2.3 GB. Free memory was 2.2 GB in the beginning and 2.1 GB in the end (delta: 124.5 MB). Peak memory consumption was 124.5 MB. Max. memory is 7.1 GB. [2018-09-15 12:12:38,644 INFO L168 Benchmark]: TraceAbstraction took 247042.73 ms. Allocated memory was 2.3 GB in the beginning and 4.2 GB in the end (delta: 1.9 GB). Free memory was 2.1 GB in the beginning and 3.1 GB in the end (delta: -990.8 MB). Peak memory consumption was 917.6 MB. Max. memory is 7.1 GB. [2018-09-15 12:12:38,648 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20 ms. Allocated memory is still 1.5 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 880.28 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: 44.9 MB). Peak memory consumption was 44.9 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 145.33 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 339.22 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 771.2 MB). Free memory was 1.4 GB in the beginning and 2.2 GB in the end (delta: -872.2 MB). Peak memory consumption was 32.9 MB. Max. memory is 7.1 GB. * RCFGBuilder took 3779.93 ms. Allocated memory is still 2.3 GB. Free memory was 2.2 GB in the beginning and 2.1 GB in the end (delta: 124.5 MB). Peak memory consumption was 124.5 MB. Max. memory is 7.1 GB. * TraceAbstraction took 247042.73 ms. Allocated memory was 2.3 GB in the beginning and 4.2 GB in the end (delta: 1.9 GB). Free memory was 2.1 GB in the beginning and 3.1 GB in the end (delta: -990.8 MB). Peak memory consumption was 917.6 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResultAtElement [Line: 148]: Timeout (TraceAbstraction) Unable to prove that call of __VERIFIER_error() unreachable (line 148). Cancelled while BasicCegarLoop was analyzing trace of length 380 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, 246.9s OverallTime, 8 OverallIterations, 4 TraceHistogramMax, 51.4s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 1637 SDtfs, 7601 SDslu, 1811 SDs, 0 SdLazy, 13472 SolverSat, 2123 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 44.7s Time, PredicateUnifierStatistics: 14 DeclaredPredicates, 1649 GetRequests, 1404 SyntacticMatches, 129 SemanticMatches, 116 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1263 ImplicationChecksByTransitivity, 6.7s 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, 171.5s AbstIntTime, 8 AbstIntIterations, 8 AbstIntStrong, 0.9953390365838246 AbsIntWeakeningRatio, 0.10248604769152714 AbsIntAvgWeakeningVarsNumRemoved, 640.7087772704211 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_label36_true-unreach-call_false-termination.c_svcomp-Reach-64bit-ToothlessTaipan_Default-OldIcfg.epf_AutomizerCInline.xml/Csv-Benchmark-0-2018-09-15_12-12-38-662.csv Written .csv to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/csv/Problem14_label36_true-unreach-call_false-termination.c_svcomp-Reach-64bit-ToothlessTaipan_Default-OldIcfg.epf_AutomizerCInline.xml/Csv-TraceAbstractionBenchmarks-0-2018-09-15_12-12-38-662.csv Completed graceful shutdown