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_INTCON-OldIcfg.epf -i ../../../trunk/examples/svcomp/eca-rers2012/Problem10_label52_true-unreach-call.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-dace188-m [2018-09-15 22:16:24,127 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-09-15 22:16:24,130 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-09-15 22:16:24,142 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-09-15 22:16:24,142 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-09-15 22:16:24,143 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-09-15 22:16:24,145 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-09-15 22:16:24,147 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-09-15 22:16:24,148 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-09-15 22:16:24,149 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-09-15 22:16:24,150 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-09-15 22:16:24,150 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-09-15 22:16:24,151 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-09-15 22:16:24,152 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-09-15 22:16:24,153 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-09-15 22:16:24,154 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-09-15 22:16:24,155 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-09-15 22:16:24,157 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-09-15 22:16:24,159 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-09-15 22:16:24,160 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-09-15 22:16:24,161 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-09-15 22:16:24,165 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-09-15 22:16:24,171 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-09-15 22:16:24,171 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-09-15 22:16:24,171 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-09-15 22:16:24,174 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-09-15 22:16:24,178 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-09-15 22:16:24,179 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-09-15 22:16:24,180 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-09-15 22:16:24,183 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-09-15 22:16:24,183 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-09-15 22:16:24,184 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-09-15 22:16:24,184 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-09-15 22:16:24,184 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-09-15 22:16:24,185 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-09-15 22:16:24,188 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-09-15 22:16:24,189 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/ai/taipanbench/svcomp-Reach-64bit-ToothlessTaipan_INTCON-OldIcfg.epf [2018-09-15 22:16:24,205 INFO L110 SettingsManager]: Loading preferences was successful [2018-09-15 22:16:24,205 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-09-15 22:16:24,207 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-09-15 22:16:24,207 INFO L133 SettingsManager]: * User list type=DISABLED [2018-09-15 22:16:24,207 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-09-15 22:16:24,208 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-09-15 22:16:24,208 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-09-15 22:16:24,208 INFO L133 SettingsManager]: * Octagon Domain=false [2018-09-15 22:16:24,208 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-09-15 22:16:24,208 INFO L133 SettingsManager]: * Log string format=TERM [2018-09-15 22:16:24,209 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-09-15 22:16:24,210 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-09-15 22:16:24,211 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-09-15 22:16:24,211 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-09-15 22:16:24,211 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-09-15 22:16:24,211 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-09-15 22:16:24,211 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-09-15 22:16:24,212 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-09-15 22:16:24,212 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-09-15 22:16:24,212 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-09-15 22:16:24,213 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-09-15 22:16:24,213 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-09-15 22:16:24,213 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-09-15 22:16:24,213 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-09-15 22:16:24,214 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-09-15 22:16:24,214 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-09-15 22:16:24,214 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-09-15 22:16:24,214 INFO L133 SettingsManager]: * Trace refinement strategy=TOOTHLESS_TAIPAN [2018-09-15 22:16:24,214 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-09-15 22:16:24,215 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-09-15 22:16:24,215 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-09-15 22:16:24,215 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-09-15 22:16:24,215 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-09-15 22:16:24,265 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-09-15 22:16:24,283 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-09-15 22:16:24,293 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-09-15 22:16:24,296 INFO L271 PluginConnector]: Initializing CDTParser... [2018-09-15 22:16:24,297 INFO L276 PluginConnector]: CDTParser initialized [2018-09-15 22:16:24,298 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem10_label52_true-unreach-call.c [2018-09-15 22:16:24,635 INFO L221 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f71126571/2ed1e0a7d73044e78e1ba084d497d71f/FLAGd680356d3 [2018-09-15 22:16:24,903 INFO L277 CDTParser]: Found 1 translation units. [2018-09-15 22:16:24,904 INFO L159 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem10_label52_true-unreach-call.c [2018-09-15 22:16:24,929 INFO L325 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f71126571/2ed1e0a7d73044e78e1ba084d497d71f/FLAGd680356d3 [2018-09-15 22:16:24,955 INFO L333 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f71126571/2ed1e0a7d73044e78e1ba084d497d71f [2018-09-15 22:16:24,969 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-09-15 22:16:24,977 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-09-15 22:16:24,979 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-09-15 22:16:24,979 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-09-15 22:16:24,987 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-09-15 22:16:24,988 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.09 10:16:24" (1/1) ... [2018-09-15 22:16:24,992 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3b9b8b2d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 10:16:24, skipping insertion in model container [2018-09-15 22:16:24,993 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.09 10:16:24" (1/1) ... [2018-09-15 22:16:25,006 INFO L160 ieTranslatorObserver]: Starting translation in SV-COMP mode [2018-09-15 22:16:25,581 INFO L170 PostProcessor]: Settings: Checked method=main [2018-09-15 22:16:25,600 INFO L424 MainDispatcher]: Starting main dispatcher in SV-COMP mode [2018-09-15 22:16:25,774 INFO L170 PostProcessor]: Settings: Checked method=main [2018-09-15 22:16:25,818 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 10:16:25 WrapperNode [2018-09-15 22:16:25,819 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-09-15 22:16:25,820 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-09-15 22:16:25,820 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-09-15 22:16:25,820 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-09-15 22:16:25,830 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 10:16:25" (1/1) ... [2018-09-15 22:16:25,854 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 10:16:25" (1/1) ... [2018-09-15 22:16:25,914 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-09-15 22:16:25,915 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-09-15 22:16:25,915 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-09-15 22:16:25,915 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-09-15 22:16:26,085 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 10:16:25" (1/1) ... [2018-09-15 22:16:26,085 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 10:16:25" (1/1) ... [2018-09-15 22:16:26,099 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 10:16:25" (1/1) ... [2018-09-15 22:16:26,100 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 10:16:25" (1/1) ... [2018-09-15 22:16:26,149 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 10:16:25" (1/1) ... [2018-09-15 22:16:26,172 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 10:16:25" (1/1) ... [2018-09-15 22:16:26,190 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 10:16:25" (1/1) ... [2018-09-15 22:16:26,207 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-09-15 22:16:26,208 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-09-15 22:16:26,208 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-09-15 22:16:26,208 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-09-15 22:16:26,209 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 10:16:25" (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 22:16:26,289 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-09-15 22:16:26,290 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-09-15 22:16:26,290 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2018-09-15 22:16:26,290 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2018-09-15 22:16:26,290 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-09-15 22:16:26,290 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-09-15 22:16:26,291 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-09-15 22:16:26,291 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-09-15 22:16:29,337 INFO L353 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-09-15 22:16:29,338 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.09 10:16:29 BoogieIcfgContainer [2018-09-15 22:16:29,338 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-09-15 22:16:29,339 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-09-15 22:16:29,339 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-09-15 22:16:29,342 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-09-15 22:16:29,343 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.09 10:16:24" (1/3) ... [2018-09-15 22:16:29,344 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1bff8df5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.09 10:16:29, skipping insertion in model container [2018-09-15 22:16:29,344 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 10:16:25" (2/3) ... [2018-09-15 22:16:29,344 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1bff8df5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.09 10:16:29, skipping insertion in model container [2018-09-15 22:16:29,344 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.09 10:16:29" (3/3) ... [2018-09-15 22:16:29,346 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem10_label52_true-unreach-call.c [2018-09-15 22:16:29,356 INFO L137 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-09-15 22:16:29,365 INFO L149 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-09-15 22:16:29,419 INFO L130 ementStrategyFactory]: Using default assertion order modulation [2018-09-15 22:16:29,420 INFO L381 AbstractCegarLoop]: Interprodecural is true [2018-09-15 22:16:29,420 INFO L382 AbstractCegarLoop]: Hoare is true [2018-09-15 22:16:29,420 INFO L383 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-09-15 22:16:29,420 INFO L384 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-09-15 22:16:29,420 INFO L385 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-09-15 22:16:29,421 INFO L386 AbstractCegarLoop]: Difference is false [2018-09-15 22:16:29,421 INFO L387 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-09-15 22:16:29,421 INFO L392 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-09-15 22:16:29,448 INFO L276 IsEmpty]: Start isEmpty. Operand 216 states. [2018-09-15 22:16:29,456 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2018-09-15 22:16:29,456 INFO L368 BasicCegarLoop]: Found error trace [2018-09-15 22:16:29,458 INFO L376 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-15 22:16:29,459 INFO L423 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-15 22:16:29,464 INFO L82 PathProgramCache]: Analyzing trace with hash 919297452, now seen corresponding path program 1 times [2018-09-15 22:16:29,467 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-15 22:16:29,468 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 49 with the following transitions: [2018-09-15 22:16:29,470 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], [285], [287], [796], [800], [806], [810], [817], [818], [819], [821] [2018-09-15 22:16:29,512 INFO L148 AbstractInterpreter]: Using domain CompoundDomain [CongruenceDomain, IntervalDomain] [2018-09-15 22:16:29,513 INFO L101 FixpointEngine]: Starting fixpoint engine with domain CompoundDomain (maxUnwinding=3, maxParallelStates=2) [2018-09-15 22:16:33,077 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-15 22:16:33,078 INFO L272 AbstractInterpreter]: Visited 47 different actions 47 times. Never merged. Never widened. Never found a fixpoint. Largest state had 23 variables. [2018-09-15 22:16:33,095 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-15 22:16:34,766 INFO L232 lantSequenceWeakener]: Weakened 45 states. On average, predicates are now at 75.02% of their original sizes. [2018-09-15 22:16:34,767 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-15 22:16:34,906 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-15 22:16:34,908 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-15 22:16:34,908 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-09-15 22:16:34,909 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-15 22:16:34,914 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-09-15 22:16:34,921 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-09-15 22:16:34,922 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2018-09-15 22:16:34,924 INFO L87 Difference]: Start difference. First operand 216 states. Second operand 6 states. [2018-09-15 22:16:37,325 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-15 22:16:37,326 INFO L93 Difference]: Finished difference Result 576 states and 995 transitions. [2018-09-15 22:16:37,327 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-09-15 22:16:37,328 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 48 [2018-09-15 22:16:37,329 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-15 22:16:37,345 INFO L225 Difference]: With dead ends: 576 [2018-09-15 22:16:37,345 INFO L226 Difference]: Without dead ends: 358 [2018-09-15 22:16:37,352 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 47 GetRequests, 43 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2018-09-15 22:16:37,370 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 358 states. [2018-09-15 22:16:37,411 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 358 to 356. [2018-09-15 22:16:37,412 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 356 states. [2018-09-15 22:16:37,414 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 356 states to 356 states and 497 transitions. [2018-09-15 22:16:37,415 INFO L78 Accepts]: Start accepts. Automaton has 356 states and 497 transitions. Word has length 48 [2018-09-15 22:16:37,416 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-15 22:16:37,416 INFO L480 AbstractCegarLoop]: Abstraction has 356 states and 497 transitions. [2018-09-15 22:16:37,416 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-09-15 22:16:37,416 INFO L276 IsEmpty]: Start isEmpty. Operand 356 states and 497 transitions. [2018-09-15 22:16:37,421 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2018-09-15 22:16:37,422 INFO L368 BasicCegarLoop]: Found error trace [2018-09-15 22:16:37,422 INFO L376 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-15 22:16:37,422 INFO L423 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-15 22:16:37,423 INFO L82 PathProgramCache]: Analyzing trace with hash 445822331, now seen corresponding path program 1 times [2018-09-15 22:16:37,423 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-15 22:16:37,423 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 120 with the following transitions: [2018-09-15 22:16:37,424 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], [285], [287], [290], [298], [306], [314], [322], [330], [338], [346], [354], [362], [370], [378], [386], [394], [402], [410], [418], [426], [434], [442], [450], [458], [466], [474], [482], [490], [495], [498], [792], [796], [800], [806], [810], [812], [817], [818], [819], [821], [822] [2018-09-15 22:16:37,429 INFO L148 AbstractInterpreter]: Using domain CompoundDomain [CongruenceDomain, IntervalDomain] [2018-09-15 22:16:37,429 INFO L101 FixpointEngine]: Starting fixpoint engine with domain CompoundDomain (maxUnwinding=3, maxParallelStates=2) [2018-09-15 22:16:41,857 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-09-15 22:16:47,933 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-15 22:16:47,933 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 22:16:47,939 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-15 22:16:56,893 INFO L232 lantSequenceWeakener]: Weakened 116 states. On average, predicates are now at 73.73% of their original sizes. [2018-09-15 22:16:56,894 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-15 22:16:57,030 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-15 22:16:57,031 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-15 22:16:57,031 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2018-09-15 22:16:57,031 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-15 22:16:57,032 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2018-09-15 22:16:57,032 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2018-09-15 22:16:57,033 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2018-09-15 22:16:57,033 INFO L87 Difference]: Start difference. First operand 356 states and 497 transitions. Second operand 10 states. [2018-09-15 22:17:01,022 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-15 22:17:01,025 INFO L93 Difference]: Finished difference Result 711 states and 1126 transitions. [2018-09-15 22:17:01,027 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2018-09-15 22:17:01,027 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 119 [2018-09-15 22:17:01,028 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-15 22:17:01,033 INFO L225 Difference]: With dead ends: 711 [2018-09-15 22:17:01,033 INFO L226 Difference]: Without dead ends: 505 [2018-09-15 22:17:01,046 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 125 GetRequests, 110 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 33 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=68, Invalid=204, Unknown=0, NotChecked=0, Total=272 [2018-09-15 22:17:01,047 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 505 states. [2018-09-15 22:17:01,086 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 505 to 502. [2018-09-15 22:17:01,086 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 502 states. [2018-09-15 22:17:01,089 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 502 states to 502 states and 655 transitions. [2018-09-15 22:17:01,090 INFO L78 Accepts]: Start accepts. Automaton has 502 states and 655 transitions. Word has length 119 [2018-09-15 22:17:01,090 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-15 22:17:01,091 INFO L480 AbstractCegarLoop]: Abstraction has 502 states and 655 transitions. [2018-09-15 22:17:01,091 INFO L481 AbstractCegarLoop]: Interpolant automaton has 10 states. [2018-09-15 22:17:01,091 INFO L276 IsEmpty]: Start isEmpty. Operand 502 states and 655 transitions. [2018-09-15 22:17:01,101 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 129 [2018-09-15 22:17:01,101 INFO L368 BasicCegarLoop]: Found error trace [2018-09-15 22:17:01,104 INFO L376 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-15 22:17:01,104 INFO L423 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-15 22:17:01,104 INFO L82 PathProgramCache]: Analyzing trace with hash -1298899392, now seen corresponding path program 1 times [2018-09-15 22:17:01,104 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-15 22:17:01,105 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 129 with the following transitions: [2018-09-15 22:17:01,105 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], [285], [287], [290], [298], [306], [314], [322], [330], [338], [346], [354], [362], [370], [378], [386], [394], [402], [410], [418], [426], [434], [442], [450], [458], [466], [474], [482], [490], [495], [499], [503], [507], [511], [515], [519], [523], [527], [531], [534], [792], [796], [800], [806], [810], [812], [817], [818], [819], [821], [822] [2018-09-15 22:17:01,112 INFO L148 AbstractInterpreter]: Using domain CompoundDomain [CongruenceDomain, IntervalDomain] [2018-09-15 22:17:01,112 INFO L101 FixpointEngine]: Starting fixpoint engine with domain CompoundDomain (maxUnwinding=3, maxParallelStates=2) [2018-09-15 22:17:38,754 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-09-15 22:18:24,300 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-15 22:18:24,300 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 22:18:24,317 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-15 22:19:06,714 INFO L232 lantSequenceWeakener]: Weakened 125 states. On average, predicates are now at 73.66% of their original sizes. [2018-09-15 22:19:06,715 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-15 22:19:06,833 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-15 22:19:06,833 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-15 22:19:06,834 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2018-09-15 22:19:06,834 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-15 22:19:06,835 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2018-09-15 22:19:06,835 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2018-09-15 22:19:06,835 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=80, Unknown=0, NotChecked=0, Total=110 [2018-09-15 22:19:06,836 INFO L87 Difference]: Start difference. First operand 502 states and 655 transitions. Second operand 11 states. [2018-09-15 22:19:09,033 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-15 22:19:09,033 INFO L93 Difference]: Finished difference Result 1002 states and 1569 transitions. [2018-09-15 22:19:09,034 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2018-09-15 22:19:09,034 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 128 [2018-09-15 22:19:09,035 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-15 22:19:09,040 INFO L225 Difference]: With dead ends: 1002 [2018-09-15 22:19:09,040 INFO L226 Difference]: Without dead ends: 796 [2018-09-15 22:19:09,042 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 134 GetRequests, 118 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 44 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=74, Invalid=232, Unknown=0, NotChecked=0, Total=306 [2018-09-15 22:19:09,043 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 796 states. [2018-09-15 22:19:09,066 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 796 to 793. [2018-09-15 22:19:09,067 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 793 states. [2018-09-15 22:19:09,071 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 793 states to 793 states and 962 transitions. [2018-09-15 22:19:09,071 INFO L78 Accepts]: Start accepts. Automaton has 793 states and 962 transitions. Word has length 128 [2018-09-15 22:19:09,072 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-15 22:19:09,072 INFO L480 AbstractCegarLoop]: Abstraction has 793 states and 962 transitions. [2018-09-15 22:19:09,072 INFO L481 AbstractCegarLoop]: Interpolant automaton has 11 states. [2018-09-15 22:19:09,072 INFO L276 IsEmpty]: Start isEmpty. Operand 793 states and 962 transitions. [2018-09-15 22:19:09,076 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 165 [2018-09-15 22:19:09,076 INFO L368 BasicCegarLoop]: Found error trace [2018-09-15 22:19:09,076 INFO L376 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-15 22:19:09,077 INFO L423 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-15 22:19:09,077 INFO L82 PathProgramCache]: Analyzing trace with hash -639538504, now seen corresponding path program 1 times [2018-09-15 22:19:09,077 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-15 22:19:09,077 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 165 with the following transitions: [2018-09-15 22:19:09,078 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], [285], [287], [290], [298], [306], [314], [322], [330], [338], [346], [354], [362], [370], [378], [386], [394], [402], [410], [418], [426], [434], [442], [450], [458], [466], [474], [482], [490], [495], [499], [503], [507], [511], [515], [519], [523], [527], [531], [535], [539], [543], [547], [551], [555], [559], [563], [567], [571], [575], [579], [583], [587], [591], [595], [599], [603], [607], [611], [615], [619], [623], [627], [631], [635], [639], [643], [647], [651], [655], [659], [663], [667], [671], [675], [678], [792], [796], [800], [806], [810], [812], [817], [818], [819], [821], [822] [2018-09-15 22:19:09,082 INFO L148 AbstractInterpreter]: Using domain CompoundDomain [CongruenceDomain, IntervalDomain] [2018-09-15 22:19:09,082 INFO L101 FixpointEngine]: Starting fixpoint engine with domain CompoundDomain (maxUnwinding=3, maxParallelStates=2) Received shutdown request... Cannot interrupt operation gracefully because timeout expired. Forcing shutdown