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/Problem10_label51_true-unreach-call.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-dace188-m [2018-09-15 11:26:44,360 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-09-15 11:26:44,363 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-09-15 11:26:44,381 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-09-15 11:26:44,382 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-09-15 11:26:44,384 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-09-15 11:26:44,385 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-09-15 11:26:44,387 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-09-15 11:26:44,390 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-09-15 11:26:44,392 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-09-15 11:26:44,393 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-09-15 11:26:44,395 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-09-15 11:26:44,396 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-09-15 11:26:44,397 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-09-15 11:26:44,398 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-09-15 11:26:44,399 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-09-15 11:26:44,403 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-09-15 11:26:44,413 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-09-15 11:26:44,415 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-09-15 11:26:44,418 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-09-15 11:26:44,420 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-09-15 11:26:44,423 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-09-15 11:26:44,426 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-09-15 11:26:44,426 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-09-15 11:26:44,426 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-09-15 11:26:44,427 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-09-15 11:26:44,428 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-09-15 11:26:44,429 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-09-15 11:26:44,430 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-09-15 11:26:44,431 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-09-15 11:26:44,431 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-09-15 11:26:44,432 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-09-15 11:26:44,432 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-09-15 11:26:44,432 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-09-15 11:26:44,433 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-09-15 11:26:44,434 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-09-15 11:26:44,435 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 11:26:44,450 INFO L110 SettingsManager]: Loading preferences was successful [2018-09-15 11:26:44,450 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-09-15 11:26:44,451 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-09-15 11:26:44,451 INFO L133 SettingsManager]: * User list type=DISABLED [2018-09-15 11:26:44,451 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-09-15 11:26:44,452 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-09-15 11:26:44,452 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-09-15 11:26:44,452 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-09-15 11:26:44,452 INFO L133 SettingsManager]: * Log string format=TERM [2018-09-15 11:26:44,452 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-09-15 11:26:44,453 INFO L133 SettingsManager]: * Interval Domain=false [2018-09-15 11:26:44,453 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-09-15 11:26:44,453 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-09-15 11:26:44,454 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-09-15 11:26:44,454 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-09-15 11:26:44,454 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-09-15 11:26:44,454 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-09-15 11:26:44,454 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-09-15 11:26:44,455 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-09-15 11:26:44,455 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-09-15 11:26:44,455 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-09-15 11:26:44,455 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-09-15 11:26:44,455 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-09-15 11:26:44,456 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-09-15 11:26:44,456 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-09-15 11:26:44,456 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-09-15 11:26:44,456 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-09-15 11:26:44,456 INFO L133 SettingsManager]: * Trace refinement strategy=TOOTHLESS_TAIPAN [2018-09-15 11:26:44,457 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-09-15 11:26:44,457 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-09-15 11:26:44,457 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-09-15 11:26:44,457 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-09-15 11:26:44,457 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-09-15 11:26:44,500 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-09-15 11:26:44,513 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-09-15 11:26:44,517 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-09-15 11:26:44,518 INFO L271 PluginConnector]: Initializing CDTParser... [2018-09-15 11:26:44,519 INFO L276 PluginConnector]: CDTParser initialized [2018-09-15 11:26:44,519 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem10_label51_true-unreach-call.c [2018-09-15 11:26:44,869 INFO L221 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c971bf9e4/89d1de1d612447299176bf38dd3866d7/FLAG43666241b [2018-09-15 11:26:45,117 INFO L277 CDTParser]: Found 1 translation units. [2018-09-15 11:26:45,118 INFO L159 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem10_label51_true-unreach-call.c [2018-09-15 11:26:45,130 INFO L325 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c971bf9e4/89d1de1d612447299176bf38dd3866d7/FLAG43666241b [2018-09-15 11:26:45,147 INFO L333 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c971bf9e4/89d1de1d612447299176bf38dd3866d7 [2018-09-15 11:26:45,159 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-09-15 11:26:45,162 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-09-15 11:26:45,163 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-09-15 11:26:45,164 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-09-15 11:26:45,170 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-09-15 11:26:45,171 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.09 11:26:45" (1/1) ... [2018-09-15 11:26:45,174 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@560f8b24 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 11:26:45, skipping insertion in model container [2018-09-15 11:26:45,175 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.09 11:26:45" (1/1) ... [2018-09-15 11:26:45,186 INFO L160 ieTranslatorObserver]: Starting translation in SV-COMP mode [2018-09-15 11:26:45,628 INFO L170 PostProcessor]: Settings: Checked method=main [2018-09-15 11:26:45,648 INFO L424 MainDispatcher]: Starting main dispatcher in SV-COMP mode [2018-09-15 11:26:45,761 INFO L170 PostProcessor]: Settings: Checked method=main [2018-09-15 11:26:45,824 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 11:26:45 WrapperNode [2018-09-15 11:26:45,824 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-09-15 11:26:45,825 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-09-15 11:26:45,825 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-09-15 11:26:45,825 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-09-15 11:26:45,835 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 11:26:45" (1/1) ... [2018-09-15 11:26:45,876 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 11:26:45" (1/1) ... [2018-09-15 11:26:45,975 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-09-15 11:26:45,975 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-09-15 11:26:45,975 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-09-15 11:26:45,975 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-09-15 11:26:46,128 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 11:26:45" (1/1) ... [2018-09-15 11:26:46,128 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 11:26:45" (1/1) ... [2018-09-15 11:26:46,135 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 11:26:45" (1/1) ... [2018-09-15 11:26:46,135 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 11:26:45" (1/1) ... [2018-09-15 11:26:46,161 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 11:26:45" (1/1) ... [2018-09-15 11:26:46,173 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 11:26:45" (1/1) ... [2018-09-15 11:26:46,180 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 11:26:45" (1/1) ... [2018-09-15 11:26:46,188 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-09-15 11:26:46,189 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-09-15 11:26:46,189 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-09-15 11:26:46,189 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-09-15 11:26:46,190 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 11:26:45" (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 11:26:46,263 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-09-15 11:26:46,264 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-09-15 11:26:46,264 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2018-09-15 11:26:46,264 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2018-09-15 11:26:46,264 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-09-15 11:26:46,264 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-09-15 11:26:46,265 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-09-15 11:26:46,265 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-09-15 11:26:49,666 INFO L353 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-09-15 11:26:49,667 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.09 11:26:49 BoogieIcfgContainer [2018-09-15 11:26:49,667 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-09-15 11:26:49,668 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-09-15 11:26:49,668 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-09-15 11:26:49,672 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-09-15 11:26:49,672 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.09 11:26:45" (1/3) ... [2018-09-15 11:26:49,673 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@288483d8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.09 11:26:49, skipping insertion in model container [2018-09-15 11:26:49,673 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 11:26:45" (2/3) ... [2018-09-15 11:26:49,674 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@288483d8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.09 11:26:49, skipping insertion in model container [2018-09-15 11:26:49,674 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.09 11:26:49" (3/3) ... [2018-09-15 11:26:49,676 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem10_label51_true-unreach-call.c [2018-09-15 11:26:49,686 INFO L137 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-09-15 11:26:49,695 INFO L149 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-09-15 11:26:49,749 INFO L130 ementStrategyFactory]: Using default assertion order modulation [2018-09-15 11:26:49,750 INFO L381 AbstractCegarLoop]: Interprodecural is true [2018-09-15 11:26:49,750 INFO L382 AbstractCegarLoop]: Hoare is true [2018-09-15 11:26:49,750 INFO L383 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-09-15 11:26:49,750 INFO L384 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-09-15 11:26:49,751 INFO L385 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-09-15 11:26:49,751 INFO L386 AbstractCegarLoop]: Difference is false [2018-09-15 11:26:49,751 INFO L387 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-09-15 11:26:49,751 INFO L392 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-09-15 11:26:49,778 INFO L276 IsEmpty]: Start isEmpty. Operand 216 states. [2018-09-15 11:26:49,788 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2018-09-15 11:26:49,788 INFO L368 BasicCegarLoop]: Found error trace [2018-09-15 11:26:49,789 INFO L376 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-15 11:26:49,791 INFO L423 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-15 11:26:49,796 INFO L82 PathProgramCache]: Analyzing trace with hash 748185177, now seen corresponding path program 1 times [2018-09-15 11:26:49,799 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-15 11:26:49,801 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 58 with the following transitions: [2018-09-15 11:26:49,804 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], [345], [353], [357], [359], [796], [800], [806], [810], [817], [818], [819], [821] [2018-09-15 11:26:49,875 INFO L148 AbstractInterpreter]: Using domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-09-15 11:26:49,875 INFO L101 FixpointEngine]: Starting fixpoint engine with domain CompoundDomain (maxUnwinding=3, maxParallelStates=2) [2018-09-15 11:26:51,392 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-15 11:26:51,394 INFO L272 AbstractInterpreter]: Visited 56 different actions 56 times. Never merged. Never widened. Never found a fixpoint. Largest state had 23 variables. [2018-09-15 11:26:51,411 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-15 11:26:52,213 INFO L232 lantSequenceWeakener]: Weakened 55 states. On average, predicates are now at 75.85% of their original sizes. [2018-09-15 11:26:52,213 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-15 11:26:52,563 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-15 11:26:52,566 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-15 11:26:52,566 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-09-15 11:26:52,566 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-15 11:26:52,576 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-09-15 11:26:52,584 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-09-15 11:26:52,585 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2018-09-15 11:26:52,588 INFO L87 Difference]: Start difference. First operand 216 states. Second operand 6 states. [2018-09-15 11:26:58,052 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-15 11:26:58,053 INFO L93 Difference]: Finished difference Result 576 states and 995 transitions. [2018-09-15 11:26:58,054 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-09-15 11:26:58,055 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 57 [2018-09-15 11:26:58,056 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-15 11:26:58,073 INFO L225 Difference]: With dead ends: 576 [2018-09-15 11:26:58,074 INFO L226 Difference]: Without dead ends: 358 [2018-09-15 11:26:58,081 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 56 GetRequests, 52 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2018-09-15 11:26:58,101 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 358 states. [2018-09-15 11:26:58,160 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 358 to 356. [2018-09-15 11:26:58,162 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 356 states. [2018-09-15 11:26:58,165 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 356 states to 356 states and 497 transitions. [2018-09-15 11:26:58,167 INFO L78 Accepts]: Start accepts. Automaton has 356 states and 497 transitions. Word has length 57 [2018-09-15 11:26:58,168 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-15 11:26:58,168 INFO L480 AbstractCegarLoop]: Abstraction has 356 states and 497 transitions. [2018-09-15 11:26:58,168 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-09-15 11:26:58,168 INFO L276 IsEmpty]: Start isEmpty. Operand 356 states and 497 transitions. [2018-09-15 11:26:58,175 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 129 [2018-09-15 11:26:58,175 INFO L368 BasicCegarLoop]: Found error trace [2018-09-15 11:26:58,176 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, 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] [2018-09-15 11:26:58,176 INFO L423 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-15 11:26:58,177 INFO L82 PathProgramCache]: Analyzing trace with hash 2000174539, now seen corresponding path program 1 times [2018-09-15 11:26:58,177 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-15 11:26:58,177 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 129 with the following transitions: [2018-09-15 11:26:58,178 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], [345], [353], [357], [359], [362], [370], [378], [386], [394], [402], [410], [418], [426], [434], [442], [450], [458], [466], [474], [482], [490], [495], [498], [792], [796], [800], [806], [810], [812], [817], [818], [819], [821], [822] [2018-09-15 11:26:58,184 INFO L148 AbstractInterpreter]: Using domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-09-15 11:26:58,184 INFO L101 FixpointEngine]: Starting fixpoint engine with domain CompoundDomain (maxUnwinding=3, maxParallelStates=2) [2018-09-15 11:27:00,354 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-09-15 11:27:06,994 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-15 11:27:06,995 INFO L272 AbstractInterpreter]: Visited 78 different actions 150 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 11:27:07,034 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-15 11:27:10,492 INFO L232 lantSequenceWeakener]: Weakened 126 states. On average, predicates are now at 74.2% of their original sizes. [2018-09-15 11:27:10,492 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-15 11:27:12,465 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-15 11:27:12,465 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-15 11:27:12,465 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2018-09-15 11:27:12,466 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-15 11:27:12,467 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2018-09-15 11:27:12,468 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2018-09-15 11:27:12,468 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2018-09-15 11:27:12,469 INFO L87 Difference]: Start difference. First operand 356 states and 497 transitions. Second operand 10 states. [2018-09-15 11:27:22,640 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-15 11:27:22,641 INFO L93 Difference]: Finished difference Result 711 states and 1126 transitions. [2018-09-15 11:27:22,642 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2018-09-15 11:27:22,642 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 128 [2018-09-15 11:27:22,643 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-15 11:27:22,651 INFO L225 Difference]: With dead ends: 711 [2018-09-15 11:27:22,652 INFO L226 Difference]: Without dead ends: 505 [2018-09-15 11:27:22,654 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 134 GetRequests, 74 SyntacticMatches, 45 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 303 ImplicationChecksByTransitivity, 2.2s TimeCoverageRelationStatistics Valid=68, Invalid=204, Unknown=0, NotChecked=0, Total=272 [2018-09-15 11:27:22,655 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 505 states. [2018-09-15 11:27:22,696 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 505 to 502. [2018-09-15 11:27:22,696 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 502 states. [2018-09-15 11:27:22,699 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 502 states to 502 states and 655 transitions. [2018-09-15 11:27:22,699 INFO L78 Accepts]: Start accepts. Automaton has 502 states and 655 transitions. Word has length 128 [2018-09-15 11:27:22,700 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-15 11:27:22,700 INFO L480 AbstractCegarLoop]: Abstraction has 502 states and 655 transitions. [2018-09-15 11:27:22,700 INFO L481 AbstractCegarLoop]: Interpolant automaton has 10 states. [2018-09-15 11:27:22,701 INFO L276 IsEmpty]: Start isEmpty. Operand 502 states and 655 transitions. [2018-09-15 11:27:22,704 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2018-09-15 11:27:22,705 INFO L368 BasicCegarLoop]: Found error trace [2018-09-15 11:27:22,705 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, 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] [2018-09-15 11:27:22,706 INFO L423 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-15 11:27:22,706 INFO L82 PathProgramCache]: Analyzing trace with hash 2018939652, now seen corresponding path program 1 times [2018-09-15 11:27:22,706 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-15 11:27:22,706 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 138 with the following transitions: [2018-09-15 11:27:22,707 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], [345], [353], [357], [359], [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], [534], [792], [796], [800], [806], [810], [812], [817], [818], [819], [821], [822] [2018-09-15 11:27:22,712 INFO L148 AbstractInterpreter]: Using domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-09-15 11:27:22,712 INFO L101 FixpointEngine]: Starting fixpoint engine with domain CompoundDomain (maxUnwinding=3, maxParallelStates=2) [2018-09-15 11:27:29,907 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-15 11:27:29,907 INFO L272 AbstractInterpreter]: Visited 87 different actions 167 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 11:27:29,927 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-15 11:27:32,311 INFO L232 lantSequenceWeakener]: Weakened 135 states. On average, predicates are now at 74.1% of their original sizes. [2018-09-15 11:27:32,311 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-15 11:27:33,600 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-15 11:27:33,600 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-15 11:27:33,601 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2018-09-15 11:27:33,601 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-15 11:27:33,601 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2018-09-15 11:27:33,602 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2018-09-15 11:27:33,602 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=80, Unknown=0, NotChecked=0, Total=110 [2018-09-15 11:27:33,603 INFO L87 Difference]: Start difference. First operand 502 states and 655 transitions. Second operand 11 states. [2018-09-15 11:27:45,771 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-15 11:27:45,772 INFO L93 Difference]: Finished difference Result 1002 states and 1569 transitions. [2018-09-15 11:27:45,775 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2018-09-15 11:27:45,776 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 137 [2018-09-15 11:27:45,777 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-15 11:27:45,782 INFO L225 Difference]: With dead ends: 1002 [2018-09-15 11:27:45,782 INFO L226 Difference]: Without dead ends: 796 [2018-09-15 11:27:45,784 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 143 GetRequests, 82 SyntacticMatches, 45 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 230 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=74, Invalid=232, Unknown=0, NotChecked=0, Total=306 [2018-09-15 11:27:45,785 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 796 states. [2018-09-15 11:27:45,835 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 796 to 793. [2018-09-15 11:27:45,836 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 793 states. [2018-09-15 11:27:45,840 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 793 states to 793 states and 962 transitions. [2018-09-15 11:27:45,840 INFO L78 Accepts]: Start accepts. Automaton has 793 states and 962 transitions. Word has length 137 [2018-09-15 11:27:45,841 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-15 11:27:45,841 INFO L480 AbstractCegarLoop]: Abstraction has 793 states and 962 transitions. [2018-09-15 11:27:45,841 INFO L481 AbstractCegarLoop]: Interpolant automaton has 11 states. [2018-09-15 11:27:45,842 INFO L276 IsEmpty]: Start isEmpty. Operand 793 states and 962 transitions. [2018-09-15 11:27:45,847 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 174 [2018-09-15 11:27:45,848 INFO L368 BasicCegarLoop]: Found error trace [2018-09-15 11:27:45,848 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, 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] [2018-09-15 11:27:45,848 INFO L423 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-15 11:27:45,849 INFO L82 PathProgramCache]: Analyzing trace with hash -1095771636, now seen corresponding path program 1 times [2018-09-15 11:27:45,849 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-15 11:27:45,849 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 174 with the following transitions: [2018-09-15 11:27:45,850 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], [345], [353], [357], [359], [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], [659], [663], [667], [671], [675], [678], [792], [796], [800], [806], [810], [812], [817], [818], [819], [821], [822] [2018-09-15 11:27:45,855 INFO L148 AbstractInterpreter]: Using domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-09-15 11:27:45,856 INFO L101 FixpointEngine]: Starting fixpoint engine with domain CompoundDomain (maxUnwinding=3, maxParallelStates=2) [2018-09-15 11:27:48,941 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-09-15 11:28:00,550 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-15 11:28:00,550 INFO L272 AbstractInterpreter]: Visited 123 different actions 240 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 11:28:00,588 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-15 11:28:04,315 INFO L232 lantSequenceWeakener]: Weakened 171 states. On average, predicates are now at 73.81% of their original sizes. [2018-09-15 11:28:04,316 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-15 11:28:06,044 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-15 11:28:06,045 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-15 11:28:06,045 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2018-09-15 11:28:06,045 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-15 11:28:06,046 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2018-09-15 11:28:06,047 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2018-09-15 11:28:06,047 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=98, Unknown=0, NotChecked=0, Total=132 [2018-09-15 11:28:06,048 INFO L87 Difference]: Start difference. First operand 793 states and 962 transitions. Second operand 12 states. [2018-09-15 11:28:13,452 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-15 11:28:13,452 INFO L93 Difference]: Finished difference Result 1150 states and 1593 transitions. [2018-09-15 11:28:13,453 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2018-09-15 11:28:13,453 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 173 [2018-09-15 11:28:13,454 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-15 11:28:13,459 INFO L225 Difference]: With dead ends: 1150 [2018-09-15 11:28:13,459 INFO L226 Difference]: Without dead ends: 944 [2018-09-15 11:28:13,461 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 181 GetRequests, 117 SyntacticMatches, 45 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 425 ImplicationChecksByTransitivity, 2.1s TimeCoverageRelationStatistics Valid=101, Invalid=319, Unknown=0, NotChecked=0, Total=420 [2018-09-15 11:28:13,462 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 944 states. [2018-09-15 11:28:13,503 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 944 to 939. [2018-09-15 11:28:13,503 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 939 states. [2018-09-15 11:28:13,508 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 939 states to 939 states and 1120 transitions. [2018-09-15 11:28:13,508 INFO L78 Accepts]: Start accepts. Automaton has 939 states and 1120 transitions. Word has length 173 [2018-09-15 11:28:13,509 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-15 11:28:13,509 INFO L480 AbstractCegarLoop]: Abstraction has 939 states and 1120 transitions. [2018-09-15 11:28:13,509 INFO L481 AbstractCegarLoop]: Interpolant automaton has 12 states. [2018-09-15 11:28:13,509 INFO L276 IsEmpty]: Start isEmpty. Operand 939 states and 1120 transitions. [2018-09-15 11:28:13,514 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 193 [2018-09-15 11:28:13,514 INFO L368 BasicCegarLoop]: Found error trace [2018-09-15 11:28:13,515 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, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-15 11:28:13,515 INFO L423 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-15 11:28:13,515 INFO L82 PathProgramCache]: Analyzing trace with hash -1874001333, now seen corresponding path program 1 times [2018-09-15 11:28:13,515 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-15 11:28:13,516 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 193 with the following transitions: [2018-09-15 11:28:13,516 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], [345], [353], [357], [359], [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], [659], [663], [667], [671], [675], [679], [683], [687], [691], [695], [699], [703], [707], [711], [715], [719], [723], [727], [731], [735], [739], [743], [747], [751], [754], [792], [796], [800], [806], [810], [812], [817], [818], [819], [821], [822] [2018-09-15 11:28:13,521 INFO L148 AbstractInterpreter]: Using domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-09-15 11:28:13,522 INFO L101 FixpointEngine]: Starting fixpoint engine with domain CompoundDomain (maxUnwinding=3, maxParallelStates=2) [2018-09-15 11:28:39,701 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-15 11:28:39,701 INFO L272 AbstractInterpreter]: Visited 142 different actions 549 times. Merged at 5 different actions 14 times. Never widened. Found 1 fixpoints after 1 different actions. Largest state had 24 variables. [2018-09-15 11:28:39,710 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-15 11:28:41,608 INFO L232 lantSequenceWeakener]: Weakened 190 states. On average, predicates are now at 73.7% of their original sizes. [2018-09-15 11:28:41,608 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-15 11:28:42,483 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-15 11:28:42,483 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-15 11:28:42,483 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2018-09-15 11:28:42,484 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-15 11:28:42,484 INFO L459 AbstractCegarLoop]: Interpolant automaton has 15 states [2018-09-15 11:28:42,484 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2018-09-15 11:28:42,485 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=55, Invalid=155, Unknown=0, NotChecked=0, Total=210 [2018-09-15 11:28:42,485 INFO L87 Difference]: Start difference. First operand 939 states and 1120 transitions. Second operand 15 states. [2018-09-15 11:28:50,457 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-15 11:28:50,457 INFO L93 Difference]: Finished difference Result 1301 states and 1760 transitions. [2018-09-15 11:28:50,459 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2018-09-15 11:28:50,459 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 192 [2018-09-15 11:28:50,460 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-15 11:28:50,466 INFO L225 Difference]: With dead ends: 1301 [2018-09-15 11:28:50,466 INFO L226 Difference]: Without dead ends: 1095 [2018-09-15 11:28:50,468 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 203 GetRequests, 178 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 121 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=165, Invalid=537, Unknown=0, NotChecked=0, Total=702 [2018-09-15 11:28:50,469 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1095 states. [2018-09-15 11:28:50,519 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1095 to 1089. [2018-09-15 11:28:50,519 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1089 states. [2018-09-15 11:28:50,525 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1089 states to 1089 states and 1286 transitions. [2018-09-15 11:28:50,525 INFO L78 Accepts]: Start accepts. Automaton has 1089 states and 1286 transitions. Word has length 192 [2018-09-15 11:28:50,526 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-15 11:28:50,526 INFO L480 AbstractCegarLoop]: Abstraction has 1089 states and 1286 transitions. [2018-09-15 11:28:50,526 INFO L481 AbstractCegarLoop]: Interpolant automaton has 15 states. [2018-09-15 11:28:50,526 INFO L276 IsEmpty]: Start isEmpty. Operand 1089 states and 1286 transitions. [2018-09-15 11:28:50,530 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 196 [2018-09-15 11:28:50,530 INFO L368 BasicCegarLoop]: Found error trace [2018-09-15 11:28:50,530 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, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-15 11:28:50,531 INFO L423 AbstractCegarLoop]: === Iteration 6 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-15 11:28:50,531 INFO L82 PathProgramCache]: Analyzing trace with hash 767025752, now seen corresponding path program 1 times [2018-09-15 11:28:50,531 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-15 11:28:50,531 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 196 with the following transitions: [2018-09-15 11:28:50,532 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], [345], [353], [357], [359], [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], [659], [663], [667], [671], [675], [679], [683], [687], [691], [695], [699], [703], [707], [711], [715], [719], [723], [727], [731], [735], [739], [743], [747], [751], [755], [759], [763], [766], [792], [796], [800], [806], [810], [812], [817], [818], [819], [821], [822] [2018-09-15 11:28:50,546 INFO L148 AbstractInterpreter]: Using domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-09-15 11:28:50,547 INFO L101 FixpointEngine]: Starting fixpoint engine with domain CompoundDomain (maxUnwinding=3, maxParallelStates=2) [2018-09-15 11:29:08,040 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-15 11:29:08,040 INFO L272 AbstractInterpreter]: Visited 145 different actions 284 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 11:29:08,046 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-15 11:29:11,943 INFO L232 lantSequenceWeakener]: Weakened 193 states. On average, predicates are now at 73.69% of their original sizes. [2018-09-15 11:29:11,943 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-15 11:29:13,933 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-15 11:29:13,933 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-15 11:29:13,933 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2018-09-15 11:29:13,934 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-15 11:29:13,934 INFO L459 AbstractCegarLoop]: Interpolant automaton has 14 states [2018-09-15 11:29:13,935 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2018-09-15 11:29:13,935 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=135, Unknown=0, NotChecked=0, Total=182 [2018-09-15 11:29:13,936 INFO L87 Difference]: Start difference. First operand 1089 states and 1286 transitions. Second operand 14 states. [2018-09-15 11:29:21,686 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-15 11:29:21,687 INFO L93 Difference]: Finished difference Result 1594 states and 2078 transitions. [2018-09-15 11:29:21,692 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2018-09-15 11:29:21,692 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 195 [2018-09-15 11:29:21,693 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-15 11:29:21,698 INFO L225 Difference]: With dead ends: 1594 [2018-09-15 11:29:21,698 INFO L226 Difference]: Without dead ends: 1238 [2018-09-15 11:29:21,700 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 206 GetRequests, 137 SyntacticMatches, 45 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 566 ImplicationChecksByTransitivity, 2.6s TimeCoverageRelationStatistics Valid=149, Invalid=501, Unknown=0, NotChecked=0, Total=650 [2018-09-15 11:29:21,701 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1238 states. [2018-09-15 11:29:21,747 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1238 to 1235. [2018-09-15 11:29:21,747 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1235 states. [2018-09-15 11:29:21,751 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1235 states to 1235 states and 1444 transitions. [2018-09-15 11:29:21,751 INFO L78 Accepts]: Start accepts. Automaton has 1235 states and 1444 transitions. Word has length 195 [2018-09-15 11:29:21,752 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-15 11:29:21,752 INFO L480 AbstractCegarLoop]: Abstraction has 1235 states and 1444 transitions. [2018-09-15 11:29:21,752 INFO L481 AbstractCegarLoop]: Interpolant automaton has 14 states. [2018-09-15 11:29:21,752 INFO L276 IsEmpty]: Start isEmpty. Operand 1235 states and 1444 transitions. [2018-09-15 11:29:21,756 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 205 [2018-09-15 11:29:21,756 INFO L368 BasicCegarLoop]: Found error trace [2018-09-15 11:29:21,756 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, 3, 3, 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] [2018-09-15 11:29:21,756 INFO L423 AbstractCegarLoop]: === Iteration 7 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-15 11:29:21,757 INFO L82 PathProgramCache]: Analyzing trace with hash 5463726, now seen corresponding path program 1 times [2018-09-15 11:29:21,757 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-15 11:29:21,757 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 205 with the following transitions: [2018-09-15 11:29:21,757 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], [345], [353], [357], [359], [362], [370], [378], [386], [394], [402], [410], [418], [426], [434], [442], [450], [458], [466], [474], [482], [490], [495], [498], [499], [503], [507], [511], [515], [518], [792], [796], [800], [806], [810], [812], [817], [818], [819], [821], [822] [2018-09-15 11:29:21,760 INFO L148 AbstractInterpreter]: Using domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-09-15 11:29:21,760 INFO L101 FixpointEngine]: Starting fixpoint engine with domain CompoundDomain (maxUnwinding=3, maxParallelStates=2) [2018-09-15 11:29:23,043 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-09-15 11:29:35,672 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-15 11:29:35,673 INFO L272 AbstractInterpreter]: Visited 84 different actions 244 times. Merged at 7 different actions 14 times. Never widened. Found 3 fixpoints after 2 different actions. Largest state had 24 variables. [2018-09-15 11:29:35,681 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-15 11:29:39,722 INFO L232 lantSequenceWeakener]: Weakened 202 states. On average, predicates are now at 73.7% of their original sizes. [2018-09-15 11:29:39,722 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-15 11:29:41,378 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-15 11:29:41,379 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-15 11:29:41,379 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2018-09-15 11:29:41,379 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-15 11:29:41,379 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2018-09-15 11:29:41,380 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2018-09-15 11:29:41,380 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2018-09-15 11:29:41,380 INFO L87 Difference]: Start difference. First operand 1235 states and 1444 transitions. Second operand 10 states. [2018-09-15 11:29:50,922 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-15 11:29:50,923 INFO L93 Difference]: Finished difference Result 1749 states and 2252 transitions. [2018-09-15 11:29:50,924 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2018-09-15 11:29:50,924 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 204 [2018-09-15 11:29:50,924 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-15 11:29:50,930 INFO L225 Difference]: With dead ends: 1749 [2018-09-15 11:29:50,931 INFO L226 Difference]: Without dead ends: 1393 [2018-09-15 11:29:50,933 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 211 GetRequests, 150 SyntacticMatches, 45 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 311 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=74, Invalid=232, Unknown=0, NotChecked=0, Total=306 [2018-09-15 11:29:50,934 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1393 states. [2018-09-15 11:29:50,993 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1393 to 1383. [2018-09-15 11:29:50,993 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1383 states. [2018-09-15 11:29:50,998 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1383 states to 1383 states and 1610 transitions. [2018-09-15 11:29:50,998 INFO L78 Accepts]: Start accepts. Automaton has 1383 states and 1610 transitions. Word has length 204 [2018-09-15 11:29:50,999 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-15 11:29:50,999 INFO L480 AbstractCegarLoop]: Abstraction has 1383 states and 1610 transitions. [2018-09-15 11:29:50,999 INFO L481 AbstractCegarLoop]: Interpolant automaton has 10 states. [2018-09-15 11:29:50,999 INFO L276 IsEmpty]: Start isEmpty. Operand 1383 states and 1610 transitions. [2018-09-15 11:29:51,003 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 209 [2018-09-15 11:29:51,003 INFO L368 BasicCegarLoop]: Found error trace [2018-09-15 11:29:51,004 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, 3, 3, 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] [2018-09-15 11:29:51,004 INFO L423 AbstractCegarLoop]: === Iteration 8 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-15 11:29:51,004 INFO L82 PathProgramCache]: Analyzing trace with hash 171488886, now seen corresponding path program 1 times [2018-09-15 11:29:51,005 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-15 11:29:51,005 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 209 with the following transitions: [2018-09-15 11:29:51,005 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], [345], [353], [357], [359], [362], [370], [378], [386], [394], [402], [410], [418], [426], [434], [442], [450], [458], [466], [474], [482], [490], [495], [498], [499], [503], [507], [511], [515], [519], [523], [527], [531], [534], [792], [796], [800], [806], [810], [812], [817], [818], [819], [821], [822] [2018-09-15 11:29:51,007 INFO L148 AbstractInterpreter]: Using domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-09-15 11:29:51,008 INFO L101 FixpointEngine]: Starting fixpoint engine with domain CompoundDomain (maxUnwinding=3, maxParallelStates=2) [2018-09-15 11:29:52,576 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-09-15 11:30:13,097 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-15 11:30:13,098 INFO L272 AbstractInterpreter]: Visited 88 different actions 510 times. Merged at 7 different actions 37 times. Widened at 1 different actions 1 times. Found 7 fixpoints after 2 different actions. Largest state had 24 variables. [2018-09-15 11:30:13,099 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-15 11:30:14,279 INFO L232 lantSequenceWeakener]: Weakened 206 states. On average, predicates are now at 73.65% of their original sizes. [2018-09-15 11:30:14,279 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-15 11:30:14,933 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-15 11:30:14,934 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-15 11:30:14,934 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2018-09-15 11:30:14,934 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-15 11:30:14,934 INFO L459 AbstractCegarLoop]: Interpolant automaton has 15 states [2018-09-15 11:30:14,935 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2018-09-15 11:30:14,935 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=152, Unknown=0, NotChecked=0, Total=210 [2018-09-15 11:30:14,935 INFO L87 Difference]: Start difference. First operand 1383 states and 1610 transitions. Second operand 15 states. [2018-09-15 11:30:23,454 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-15 11:30:23,457 INFO L93 Difference]: Finished difference Result 2585 states and 3385 transitions. [2018-09-15 11:30:23,462 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2018-09-15 11:30:23,462 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 208 [2018-09-15 11:30:23,463 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-15 11:30:23,473 INFO L225 Difference]: With dead ends: 2585 [2018-09-15 11:30:23,473 INFO L226 Difference]: Without dead ends: 2081 [2018-09-15 11:30:23,476 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 219 GetRequests, 194 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 125 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=177, Invalid=525, Unknown=0, NotChecked=0, Total=702 [2018-09-15 11:30:23,478 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2081 states. [2018-09-15 11:30:23,561 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2081 to 2059. [2018-09-15 11:30:23,561 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2059 states. [2018-09-15 11:30:23,567 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2059 states to 2059 states and 2428 transitions. [2018-09-15 11:30:23,567 INFO L78 Accepts]: Start accepts. Automaton has 2059 states and 2428 transitions. Word has length 208 [2018-09-15 11:30:23,568 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-15 11:30:23,568 INFO L480 AbstractCegarLoop]: Abstraction has 2059 states and 2428 transitions. [2018-09-15 11:30:23,568 INFO L481 AbstractCegarLoop]: Interpolant automaton has 15 states. [2018-09-15 11:30:23,568 INFO L276 IsEmpty]: Start isEmpty. Operand 2059 states and 2428 transitions. [2018-09-15 11:30:23,575 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 242 [2018-09-15 11:30:23,575 INFO L368 BasicCegarLoop]: Found error trace [2018-09-15 11:30:23,575 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, 3, 3, 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] [2018-09-15 11:30:23,576 INFO L423 AbstractCegarLoop]: === Iteration 9 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-15 11:30:23,576 INFO L82 PathProgramCache]: Analyzing trace with hash 1447327117, now seen corresponding path program 1 times [2018-09-15 11:30:23,576 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-15 11:30:23,576 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 242 with the following transitions: [2018-09-15 11:30:23,577 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], [345], [353], [357], [359], [362], [370], [378], [386], [394], [402], [410], [418], [426], [434], [442], [450], [458], [466], [474], [482], [490], [495], [498], [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], [659], [663], [666], [792], [796], [800], [806], [810], [812], [817], [818], [819], [821], [822] [2018-09-15 11:30:23,579 INFO L148 AbstractInterpreter]: Using domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-09-15 11:30:23,580 INFO L101 FixpointEngine]: Starting fixpoint engine with domain CompoundDomain (maxUnwinding=3, maxParallelStates=2) [2018-09-15 11:30:24,963 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-09-15 11:30:50,606 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-15 11:30:50,607 INFO L272 AbstractInterpreter]: Visited 121 different actions 589 times. Merged at 7 different actions 28 times. Never widened. Found 5 fixpoints after 2 different actions. Largest state had 24 variables. [2018-09-15 11:30:50,615 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-15 11:30:52,031 INFO L232 lantSequenceWeakener]: Weakened 239 states. On average, predicates are now at 73.55% of their original sizes. [2018-09-15 11:30:52,031 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-15 11:30:52,813 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-15 11:30:52,813 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-15 11:30:52,813 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2018-09-15 11:30:52,814 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-15 11:30:52,814 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2018-09-15 11:30:52,814 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2018-09-15 11:30:52,815 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=116, Unknown=0, NotChecked=0, Total=156 [2018-09-15 11:30:52,815 INFO L87 Difference]: Start difference. First operand 2059 states and 2428 transitions. Second operand 13 states. Received shutdown request... [2018-09-15 11:31:00,294 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2018-09-15 11:31:00,294 WARN L549 AbstractCegarLoop]: Verification canceled [2018-09-15 11:31:00,301 WARN L206 ceAbstractionStarter]: Timeout [2018-09-15 11:31:00,301 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 15.09 11:31:00 BoogieIcfgContainer [2018-09-15 11:31:00,301 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-09-15 11:31:00,302 INFO L168 Benchmark]: Toolchain (without parser) took 255143.19 ms. Allocated memory was 1.5 GB in the beginning and 4.2 GB in the end (delta: 2.7 GB). Free memory was 1.4 GB in the beginning and 2.1 GB in the end (delta: -700.8 MB). Peak memory consumption was 2.0 GB. Max. memory is 7.1 GB. [2018-09-15 11:31:00,304 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 11:31:00,305 INFO L168 Benchmark]: CACSL2BoogieTranslator took 661.24 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.4 GB in the end (delta: 31.7 MB). Peak memory consumption was 31.7 MB. Max. memory is 7.1 GB. [2018-09-15 11:31:00,305 INFO L168 Benchmark]: Boogie Procedure Inliner took 149.85 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 11:31:00,306 INFO L168 Benchmark]: Boogie Preprocessor took 213.18 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 780.7 MB). Free memory was 1.4 GB in the beginning and 2.2 GB in the end (delta: -870.6 MB). Peak memory consumption was 29.1 MB. Max. memory is 7.1 GB. [2018-09-15 11:31:00,307 INFO L168 Benchmark]: RCFGBuilder took 3478.63 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: 107.6 MB). Peak memory consumption was 107.6 MB. Max. memory is 7.1 GB. [2018-09-15 11:31:00,308 INFO L168 Benchmark]: TraceAbstraction took 250633.32 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 2.1 GB in the end (delta: 19.9 MB). Peak memory consumption was 1.9 GB. Max. memory is 7.1 GB. [2018-09-15 11:31:00,313 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 661.24 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.4 GB in the end (delta: 31.7 MB). Peak memory consumption was 31.7 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 149.85 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 213.18 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 780.7 MB). Free memory was 1.4 GB in the beginning and 2.2 GB in the end (delta: -870.6 MB). Peak memory consumption was 29.1 MB. Max. memory is 7.1 GB. * RCFGBuilder took 3478.63 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: 107.6 MB). Peak memory consumption was 107.6 MB. Max. memory is 7.1 GB. * TraceAbstraction took 250633.32 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 2.1 GB in the end (delta: 19.9 MB). Peak memory consumption was 1.9 GB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResultAtElement [Line: 154]: Timeout (TraceAbstraction) Unable to prove that call of __VERIFIER_error() unreachable (line 154). Cancelled while BasicCegarLoop was constructing difference of abstraction (2059states) and FLOYD_HOARE automaton (currently 18 states, 13 states before enhancement), while ReachableStatesComputation was computing reachable states (1671 states constructedinput type IntersectNwa). - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 216 locations, 1 error locations. TIMEOUT Result, 250.5s OverallTime, 9 OverallIterations, 3 TraceHistogramMax, 76.6s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 1758 SDtfs, 7625 SDslu, 2971 SDs, 0 SdLazy, 16073 SolverSat, 1654 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 66.5s Time, PredicateUnifierStatistics: 18 DeclaredPredicates, 1606 GetRequests, 1201 SyntacticMatches, 237 SemanticMatches, 168 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2297 ImplicationChecksByTransitivity, 14.9s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=2059occurred in iteration=8, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 139.1s AbstIntTime, 9 AbstIntIterations, 9 AbstIntStrong, 0.9942113381233839 AbsIntWeakeningRatio, 0.1258191349934469 AbsIntAvgWeakeningVarsNumRemoved, 304.22411533420706 AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.4s AutomataMinimizationTime, 8 MinimizatonAttempts, 54 StatesRemovedByMinimization, 8 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/Problem10_label51_true-unreach-call.c_svcomp-Reach-64bit-ToothlessTaipan_Default-OldIcfg.epf_AutomizerCInline.xml/Csv-Benchmark-0-2018-09-15_11-31-00-327.csv Written .csv to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/csv/Problem10_label51_true-unreach-call.c_svcomp-Reach-64bit-ToothlessTaipan_Default-OldIcfg.epf_AutomizerCInline.xml/Csv-TraceAbstractionBenchmarks-0-2018-09-15_11-31-00-327.csv Completed graceful shutdown