java -Xmx8000000000 -jar /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -s ../../../trunk/examples/settings/default/taipan/svcomp-Reach-64bit-Taipan_Default.epf -i ../../../trunk/examples/svcomp/eca-rers2012/Problem15_label53_true-unreach-call.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-1dbac8b [2018-10-27 03:15:53,113 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-10-27 03:15:53,116 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-10-27 03:15:53,132 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-10-27 03:15:53,133 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-10-27 03:15:53,134 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-10-27 03:15:53,135 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-10-27 03:15:53,138 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-10-27 03:15:53,140 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-10-27 03:15:53,141 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-10-27 03:15:53,146 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-10-27 03:15:53,147 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-10-27 03:15:53,148 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-10-27 03:15:53,149 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-10-27 03:15:53,153 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-10-27 03:15:53,154 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-10-27 03:15:53,155 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-10-27 03:15:53,159 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-10-27 03:15:53,165 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-10-27 03:15:53,168 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-10-27 03:15:53,169 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-10-27 03:15:53,171 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-10-27 03:15:53,175 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-10-27 03:15:53,175 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-10-27 03:15:53,175 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-10-27 03:15:53,176 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-10-27 03:15:53,177 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-10-27 03:15:53,178 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-10-27 03:15:53,178 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-10-27 03:15:53,183 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-10-27 03:15:53,183 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-10-27 03:15:53,185 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-10-27 03:15:53,186 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-10-27 03:15:53,186 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-10-27 03:15:53,187 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-10-27 03:15:53,187 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-10-27 03:15:53,188 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/../../../trunk/examples/settings/default/taipan/svcomp-Reach-64bit-Taipan_Default.epf [2018-10-27 03:15:53,207 INFO L110 SettingsManager]: Loading preferences was successful [2018-10-27 03:15:53,207 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-10-27 03:15:53,208 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-10-27 03:15:53,208 INFO L133 SettingsManager]: * User list type=DISABLED [2018-10-27 03:15:53,209 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-10-27 03:15:53,209 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-10-27 03:15:53,209 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-10-27 03:15:53,209 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-10-27 03:15:53,209 INFO L133 SettingsManager]: * Log string format=TERM [2018-10-27 03:15:53,210 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-10-27 03:15:53,210 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-10-27 03:15:53,210 INFO L133 SettingsManager]: * Interval Domain=false [2018-10-27 03:15:53,211 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-10-27 03:15:53,211 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-10-27 03:15:53,211 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-10-27 03:15:53,211 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-10-27 03:15:53,212 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-10-27 03:15:53,212 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-10-27 03:15:53,212 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-10-27 03:15:53,212 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-10-27 03:15:53,212 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-10-27 03:15:53,213 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-10-27 03:15:53,213 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-10-27 03:15:53,213 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-10-27 03:15:53,213 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-10-27 03:15:53,213 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-10-27 03:15:53,214 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-10-27 03:15:53,214 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-10-27 03:15:53,214 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-10-27 03:15:53,214 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-10-27 03:15:53,214 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-10-27 03:15:53,215 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-10-27 03:15:53,215 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-10-27 03:15:53,215 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-10-27 03:15:53,279 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-10-27 03:15:53,293 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-10-27 03:15:53,296 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-10-27 03:15:53,298 INFO L271 PluginConnector]: Initializing CDTParser... [2018-10-27 03:15:53,298 INFO L276 PluginConnector]: CDTParser initialized [2018-10-27 03:15:53,299 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem15_label53_true-unreach-call.c [2018-10-27 03:15:53,358 INFO L218 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/d37470f6d/dfef7f4d22c940059b20844d9550f9f1/FLAG666838759 [2018-10-27 03:15:53,954 INFO L298 CDTParser]: Found 1 translation units. [2018-10-27 03:15:53,955 INFO L158 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem15_label53_true-unreach-call.c [2018-10-27 03:15:53,976 INFO L346 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/d37470f6d/dfef7f4d22c940059b20844d9550f9f1/FLAG666838759 [2018-10-27 03:15:53,994 INFO L354 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/d37470f6d/dfef7f4d22c940059b20844d9550f9f1 [2018-10-27 03:15:54,008 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-10-27 03:15:54,010 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-10-27 03:15:54,011 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-10-27 03:15:54,012 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-10-27 03:15:54,015 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-10-27 03:15:54,016 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.10 03:15:53" (1/1) ... [2018-10-27 03:15:54,019 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4a508f8f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 03:15:54, skipping insertion in model container [2018-10-27 03:15:54,020 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.10 03:15:53" (1/1) ... [2018-10-27 03:15:54,030 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-10-27 03:15:54,114 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-10-27 03:15:54,976 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-27 03:15:54,980 INFO L189 MainTranslator]: Completed pre-run [2018-10-27 03:15:55,265 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-27 03:15:55,290 INFO L193 MainTranslator]: Completed translation [2018-10-27 03:15:55,290 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 03:15:55 WrapperNode [2018-10-27 03:15:55,291 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-10-27 03:15:55,292 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-10-27 03:15:55,292 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-10-27 03:15:55,292 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-10-27 03:15:55,302 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 03:15:55" (1/1) ... [2018-10-27 03:15:55,342 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 03:15:55" (1/1) ... [2018-10-27 03:15:55,672 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-10-27 03:15:55,673 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-10-27 03:15:55,673 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-10-27 03:15:55,673 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-10-27 03:15:55,682 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 03:15:55" (1/1) ... [2018-10-27 03:15:55,683 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 03:15:55" (1/1) ... [2018-10-27 03:15:55,710 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 03:15:55" (1/1) ... [2018-10-27 03:15:55,711 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 03:15:55" (1/1) ... [2018-10-27 03:15:55,806 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 03:15:55" (1/1) ... [2018-10-27 03:15:55,840 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 03:15:55" (1/1) ... [2018-10-27 03:15:55,875 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 03:15:55" (1/1) ... [2018-10-27 03:15:55,915 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-10-27 03:15:55,916 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-10-27 03:15:55,916 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-10-27 03:15:55,916 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-10-27 03:15:55,917 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 03:15:55" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UTaipan-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 [2018-10-27 03:15:55,987 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-10-27 03:15:55,987 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-10-27 03:15:55,987 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output2 [2018-10-27 03:15:55,988 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output2 [2018-10-27 03:15:55,988 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2018-10-27 03:15:55,989 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2018-10-27 03:15:55,989 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-10-27 03:15:55,989 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-10-27 03:15:55,989 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-10-27 03:15:55,989 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-10-27 03:16:03,194 INFO L341 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-10-27 03:16:03,195 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.10 03:16:03 BoogieIcfgContainer [2018-10-27 03:16:03,195 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-10-27 03:16:03,196 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-10-27 03:16:03,196 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-10-27 03:16:03,200 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-10-27 03:16:03,200 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 27.10 03:15:53" (1/3) ... [2018-10-27 03:16:03,201 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5b2f79bd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.10 03:16:03, skipping insertion in model container [2018-10-27 03:16:03,201 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 03:15:55" (2/3) ... [2018-10-27 03:16:03,202 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5b2f79bd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.10 03:16:03, skipping insertion in model container [2018-10-27 03:16:03,202 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.10 03:16:03" (3/3) ... [2018-10-27 03:16:03,207 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem15_label53_true-unreach-call.c [2018-10-27 03:16:03,221 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-10-27 03:16:03,231 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-10-27 03:16:03,249 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-10-27 03:16:03,288 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-10-27 03:16:03,288 INFO L383 AbstractCegarLoop]: Hoare is true [2018-10-27 03:16:03,288 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-10-27 03:16:03,289 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-10-27 03:16:03,289 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-10-27 03:16:03,289 INFO L387 AbstractCegarLoop]: Difference is false [2018-10-27 03:16:03,289 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-10-27 03:16:03,289 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-10-27 03:16:03,321 INFO L276 IsEmpty]: Start isEmpty. Operand 438 states. [2018-10-27 03:16:03,332 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2018-10-27 03:16:03,332 INFO L367 BasicCegarLoop]: Found error trace [2018-10-27 03:16:03,333 INFO L375 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] [2018-10-27 03:16:03,336 INFO L424 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-27 03:16:03,341 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-27 03:16:03,342 INFO L82 PathProgramCache]: Analyzing trace with hash 1192963812, now seen corresponding path program 1 times [2018-10-27 03:16:03,344 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-27 03:16:03,394 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 03:16:03,394 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-27 03:16:03,394 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 03:16:03,395 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-27 03:16:03,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-27 03:16:03,879 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-27 03:16:03,882 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-27 03:16:03,882 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-10-27 03:16:03,882 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-27 03:16:03,888 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-10-27 03:16:03,903 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-10-27 03:16:03,904 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-27 03:16:03,907 INFO L87 Difference]: Start difference. First operand 438 states. Second operand 4 states. [2018-10-27 03:16:14,014 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-27 03:16:14,015 INFO L93 Difference]: Finished difference Result 1550 states and 2835 transitions. [2018-10-27 03:16:14,016 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-10-27 03:16:14,018 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 54 [2018-10-27 03:16:14,019 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-27 03:16:14,058 INFO L225 Difference]: With dead ends: 1550 [2018-10-27 03:16:14,058 INFO L226 Difference]: Without dead ends: 1106 [2018-10-27 03:16:14,075 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-27 03:16:14,092 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1106 states. [2018-10-27 03:16:14,175 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1106 to 762. [2018-10-27 03:16:14,179 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 762 states. [2018-10-27 03:16:14,184 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 762 states to 762 states and 1263 transitions. [2018-10-27 03:16:14,186 INFO L78 Accepts]: Start accepts. Automaton has 762 states and 1263 transitions. Word has length 54 [2018-10-27 03:16:14,187 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-27 03:16:14,187 INFO L481 AbstractCegarLoop]: Abstraction has 762 states and 1263 transitions. [2018-10-27 03:16:14,187 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-10-27 03:16:14,187 INFO L276 IsEmpty]: Start isEmpty. Operand 762 states and 1263 transitions. [2018-10-27 03:16:14,195 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 128 [2018-10-27 03:16:14,195 INFO L367 BasicCegarLoop]: Found error trace [2018-10-27 03:16:14,196 INFO L375 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-27 03:16:14,196 INFO L424 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-27 03:16:14,196 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-27 03:16:14,196 INFO L82 PathProgramCache]: Analyzing trace with hash -4975238, now seen corresponding path program 1 times [2018-10-27 03:16:14,197 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-27 03:16:14,198 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 03:16:14,198 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-27 03:16:14,198 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 03:16:14,198 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-27 03:16:14,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-27 03:16:14,565 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 47 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-27 03:16:14,566 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-27 03:16:14,566 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-10-27 03:16:14,566 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-27 03:16:14,568 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-10-27 03:16:14,568 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-10-27 03:16:14,568 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-10-27 03:16:14,569 INFO L87 Difference]: Start difference. First operand 762 states and 1263 transitions. Second operand 5 states. [2018-10-27 03:16:22,465 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-27 03:16:22,465 INFO L93 Difference]: Finished difference Result 2245 states and 3758 transitions. [2018-10-27 03:16:22,472 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-10-27 03:16:22,472 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 127 [2018-10-27 03:16:22,473 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-27 03:16:22,485 INFO L225 Difference]: With dead ends: 2245 [2018-10-27 03:16:22,485 INFO L226 Difference]: Without dead ends: 1489 [2018-10-27 03:16:22,489 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2018-10-27 03:16:22,491 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1489 states. [2018-10-27 03:16:22,566 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1489 to 1457. [2018-10-27 03:16:22,566 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1457 states. [2018-10-27 03:16:22,572 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1457 states to 1457 states and 2152 transitions. [2018-10-27 03:16:22,573 INFO L78 Accepts]: Start accepts. Automaton has 1457 states and 2152 transitions. Word has length 127 [2018-10-27 03:16:22,573 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-27 03:16:22,573 INFO L481 AbstractCegarLoop]: Abstraction has 1457 states and 2152 transitions. [2018-10-27 03:16:22,574 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-10-27 03:16:22,575 INFO L276 IsEmpty]: Start isEmpty. Operand 1457 states and 2152 transitions. [2018-10-27 03:16:22,585 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2018-10-27 03:16:22,585 INFO L367 BasicCegarLoop]: Found error trace [2018-10-27 03:16:22,586 INFO L375 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-27 03:16:22,587 INFO L424 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-27 03:16:22,588 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-27 03:16:22,588 INFO L82 PathProgramCache]: Analyzing trace with hash -2136699286, now seen corresponding path program 1 times [2018-10-27 03:16:22,588 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-27 03:16:22,589 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 03:16:22,589 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-27 03:16:22,589 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 03:16:22,589 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-27 03:16:22,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-27 03:16:23,368 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 4 proven. 43 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-27 03:16:23,368 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-27 03:16:23,368 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-10-27 03:16:23,369 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 136 with the following transitions: [2018-10-27 03:16:23,372 INFO L202 CegarAbsIntRunner]: [0], [1], [74], [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], [361], [369], [377], [385], [393], [401], [405], [407], [410], [418], [426], [434], [442], [450], [458], [466], [474], [482], [490], [498], [506], [514], [522], [530], [538], [546], [554], [562], [567], [571], [582], [586], [590], [594], [598], [602], [606], [610], [614], [617], [1635], [1639], [1643], [1649], [1653], [1655], [1662], [1663], [1664], [1666], [1667] [2018-10-27 03:16:23,441 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-10-27 03:16:23,442 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-10-27 03:16:25,043 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-10-27 03:16:25,045 INFO L272 AbstractInterpreter]: Visited 85 different actions 85 times. Never merged. Never widened. Never found a fixpoint. Largest state had 24 variables. [2018-10-27 03:16:25,055 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-27 03:16:25,055 INFO L398 sIntCurrentIteration]: Generating AbsInt predicates [2018-10-27 03:16:26,233 INFO L227 lantSequenceWeakener]: Weakened 130 states. On average, predicates are now at 78.64% of their original sizes. [2018-10-27 03:16:26,234 INFO L413 sIntCurrentIteration]: Unifying AI predicates [2018-10-27 03:16:26,496 INFO L415 sIntCurrentIteration]: We unified 134 AI predicates to 134 [2018-10-27 03:16:26,496 INFO L424 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-10-27 03:16:26,497 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-10-27 03:16:26,497 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [7] total 12 [2018-10-27 03:16:26,497 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-27 03:16:26,498 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-10-27 03:16:26,498 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-10-27 03:16:26,498 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2018-10-27 03:16:26,499 INFO L87 Difference]: Start difference. First operand 1457 states and 2152 transitions. Second operand 7 states. [2018-10-27 03:16:28,371 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-10-27 03:17:49,848 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-27 03:17:49,849 INFO L93 Difference]: Finished difference Result 3218 states and 4681 transitions. [2018-10-27 03:17:49,849 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-10-27 03:17:49,849 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 135 [2018-10-27 03:17:49,849 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-27 03:17:49,857 INFO L225 Difference]: With dead ends: 3218 [2018-10-27 03:17:49,858 INFO L226 Difference]: Without dead ends: 1767 [2018-10-27 03:17:49,863 INFO L605 BasicCegarLoop]: 2 DeclaredPredicates, 135 GetRequests, 129 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=21, Invalid=35, Unknown=0, NotChecked=0, Total=56 [2018-10-27 03:17:49,865 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1767 states. [2018-10-27 03:17:49,903 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1767 to 1765. [2018-10-27 03:17:49,903 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1765 states. [2018-10-27 03:17:49,910 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1765 states to 1765 states and 2468 transitions. [2018-10-27 03:17:49,910 INFO L78 Accepts]: Start accepts. Automaton has 1765 states and 2468 transitions. Word has length 135 [2018-10-27 03:17:49,910 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-27 03:17:49,911 INFO L481 AbstractCegarLoop]: Abstraction has 1765 states and 2468 transitions. [2018-10-27 03:17:49,911 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-10-27 03:17:49,911 INFO L276 IsEmpty]: Start isEmpty. Operand 1765 states and 2468 transitions. [2018-10-27 03:17:49,914 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 232 [2018-10-27 03:17:49,914 INFO L367 BasicCegarLoop]: Found error trace [2018-10-27 03:17:49,915 INFO L375 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2018-10-27 03:17:49,915 INFO L424 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-27 03:17:49,915 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-27 03:17:49,916 INFO L82 PathProgramCache]: Analyzing trace with hash -1554168383, now seen corresponding path program 1 times [2018-10-27 03:17:49,916 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-27 03:17:49,917 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 03:17:49,917 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-27 03:17:49,917 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 03:17:49,917 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-27 03:17:49,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-27 03:17:50,533 WARN L179 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 36 DAG size of output: 35 [2018-10-27 03:17:50,813 INFO L134 CoverageAnalysis]: Checked inductivity of 175 backedges. 48 proven. 120 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2018-10-27 03:17:50,813 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-27 03:17:50,813 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-10-27 03:17:50,814 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 232 with the following transitions: [2018-10-27 03:17:50,814 INFO L202 CegarAbsIntRunner]: [0], [1], [74], [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], [361], [369], [377], [385], [393], [401], [405], [407], [410], [418], [426], [434], [442], [450], [458], [466], [474], [482], [490], [498], [506], [514], [522], [530], [538], [546], [554], [562], [567], [571], [582], [586], [590], [594], [598], [602], [606], [610], [614], [617], [618], [622], [626], [630], [641], [645], [649], [653], [657], [668], [672], [676], [680], [684], [688], [691], [1635], [1639], [1643], [1649], [1653], [1655], [1662], [1663], [1664], [1666], [1667] [2018-10-27 03:17:50,820 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-10-27 03:17:50,820 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-10-27 03:17:52,658 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-10-27 03:17:55,940 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-10-27 03:17:55,941 INFO L272 AbstractInterpreter]: Visited 104 different actions 299 times. Merged at 5 different actions 9 times. Never widened. Found 1 fixpoints after 1 different actions. Largest state had 24 variables. [2018-10-27 03:17:55,950 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-27 03:17:55,950 INFO L398 sIntCurrentIteration]: Generating AbsInt predicates [2018-10-27 03:17:58,283 INFO L227 lantSequenceWeakener]: Weakened 61 states. On average, predicates are now at 80.33% of their original sizes. [2018-10-27 03:17:58,284 INFO L413 sIntCurrentIteration]: Unifying AI predicates [2018-10-27 03:19:34,208 INFO L415 sIntCurrentIteration]: We unified 230 AI predicates to 230 [2018-10-27 03:19:34,209 INFO L424 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-10-27 03:19:34,209 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-10-27 03:19:34,209 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [21] imperfect sequences [13] total 32 [2018-10-27 03:19:34,210 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-27 03:19:34,211 INFO L460 AbstractCegarLoop]: Interpolant automaton has 21 states [2018-10-27 03:19:34,211 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2018-10-27 03:19:34,211 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=92, Invalid=328, Unknown=0, NotChecked=0, Total=420 [2018-10-27 03:19:34,212 INFO L87 Difference]: Start difference. First operand 1765 states and 2468 transitions. Second operand 21 states. Received shutdown request... [2018-10-27 03:19:56,044 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2018-10-27 03:19:56,044 WARN L550 AbstractCegarLoop]: Verification canceled [2018-10-27 03:19:56,050 WARN L205 ceAbstractionStarter]: Timeout [2018-10-27 03:19:56,050 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 27.10 03:19:56 BoogieIcfgContainer [2018-10-27 03:19:56,050 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-10-27 03:19:56,051 INFO L168 Benchmark]: Toolchain (without parser) took 242042.50 ms. Allocated memory was 1.5 GB in the beginning and 4.0 GB in the end (delta: 2.4 GB). Free memory was 1.4 GB in the beginning and 3.2 GB in the end (delta: -1.7 GB). Peak memory consumption was 701.7 MB. Max. memory is 7.1 GB. [2018-10-27 03:19:56,052 INFO L168 Benchmark]: CDTParser took 0.21 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. [2018-10-27 03:19:56,053 INFO L168 Benchmark]: CACSL2BoogieTranslator took 1279.82 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.3 GB in the end (delta: 105.9 MB). Peak memory consumption was 105.9 MB. Max. memory is 7.1 GB. [2018-10-27 03:19:56,054 INFO L168 Benchmark]: Boogie Procedure Inliner took 380.45 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 782.8 MB). Free memory was 1.3 GB in the beginning and 2.2 GB in the end (delta: -899.1 MB). Peak memory consumption was 33.4 MB. Max. memory is 7.1 GB. [2018-10-27 03:19:56,055 INFO L168 Benchmark]: Boogie Preprocessor took 242.84 ms. Allocated memory is still 2.3 GB. Free memory was 2.2 GB in the beginning and 2.2 GB in the end (delta: 27.0 MB). Peak memory consumption was 27.0 MB. Max. memory is 7.1 GB. [2018-10-27 03:19:56,056 INFO L168 Benchmark]: RCFGBuilder took 7279.28 ms. Allocated memory is still 2.3 GB. Free memory was 2.2 GB in the beginning and 1.9 GB in the end (delta: 297.4 MB). Peak memory consumption was 297.4 MB. Max. memory is 7.1 GB. [2018-10-27 03:19:56,057 INFO L168 Benchmark]: TraceAbstraction took 232854.26 ms. Allocated memory was 2.3 GB in the beginning and 4.0 GB in the end (delta: 1.6 GB). Free memory was 1.9 GB in the beginning and 3.2 GB in the end (delta: -1.2 GB). Peak memory consumption was 387.8 MB. Max. memory is 7.1 GB. [2018-10-27 03:19:56,062 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21 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 1279.82 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.3 GB in the end (delta: 105.9 MB). Peak memory consumption was 105.9 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 380.45 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 782.8 MB). Free memory was 1.3 GB in the beginning and 2.2 GB in the end (delta: -899.1 MB). Peak memory consumption was 33.4 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 242.84 ms. Allocated memory is still 2.3 GB. Free memory was 2.2 GB in the beginning and 2.2 GB in the end (delta: 27.0 MB). Peak memory consumption was 27.0 MB. Max. memory is 7.1 GB. * RCFGBuilder took 7279.28 ms. Allocated memory is still 2.3 GB. Free memory was 2.2 GB in the beginning and 1.9 GB in the end (delta: 297.4 MB). Peak memory consumption was 297.4 MB. Max. memory is 7.1 GB. * TraceAbstraction took 232854.26 ms. Allocated memory was 2.3 GB in the beginning and 4.0 GB in the end (delta: 1.6 GB). Free memory was 1.9 GB in the beginning and 3.2 GB in the end (delta: -1.2 GB). Peak memory consumption was 387.8 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResultAtElement [Line: 148]: Timeout (TraceAbstraction) Unable to prove that call of __VERIFIER_error() unreachable (line 148). Cancelled while BasicCegarLoop was constructing difference of abstraction (1765states) and FLOYD_HOARE automaton (currently 9 states, 21 states before enhancement),while ReachableStatesComputation was computing reachable states (70 states constructedinput type IntersectNwa). - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 438 locations, 1 error locations. TIMEOUT Result, 232.7s OverallTime, 4 OverallIterations, 3 TraceHistogramMax, 123.3s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 929 SDtfs, 3161 SDslu, 909 SDs, 0 SdLazy, 5330 SolverSat, 1098 SolverUnsat, 1 SolverUnknown, 0 SolverNotchecked, 73.5s Time, PredicateUnifierStatistics: 4 DeclaredPredicates, 385 GetRequests, 243 SyntacticMatches, 104 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 662 ImplicationChecksByTransitivity, 97.8s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1765occurred in iteration=3, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 6.8s AbstIntTime, 2 AbstIntIterations, 2 AbstIntStrong, 0.9944557254339861 AbsIntWeakeningRatio, 0.12637362637362637 AbsIntAvgWeakeningVarsNumRemoved, 528.3131868131868 AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.2s AutomataMinimizationTime, 3 MinimizatonAttempts, 378 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 2.0s InterpolantComputationTime, 547 NumberOfCodeBlocks, 547 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 543 ConstructedInterpolants, 0 QuantifiedInterpolants, 991513 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 4 InterpolantComputations, 2 PerfectInterpolantSequences, 106/269 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Completed graceful shutdown