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-INT.epf -i ../../../trunk/examples/svcomp/eca-rers2012/Problem17_label14_true-unreach-call.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-1dbac8b [2018-10-27 14:55:30,178 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-10-27 14:55:30,180 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-10-27 14:55:30,192 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-10-27 14:55:30,192 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-10-27 14:55:30,194 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-10-27 14:55:30,195 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-10-27 14:55:30,197 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-10-27 14:55:30,199 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-10-27 14:55:30,199 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-10-27 14:55:30,200 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-10-27 14:55:30,201 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-10-27 14:55:30,202 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-10-27 14:55:30,203 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-10-27 14:55:30,204 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-10-27 14:55:30,205 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-10-27 14:55:30,206 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-10-27 14:55:30,208 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-10-27 14:55:30,210 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-10-27 14:55:30,211 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-10-27 14:55:30,213 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-10-27 14:55:30,214 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-10-27 14:55:30,217 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-10-27 14:55:30,217 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-10-27 14:55:30,217 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-10-27 14:55:30,218 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-10-27 14:55:30,219 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-10-27 14:55:30,220 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-10-27 14:55:30,221 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-10-27 14:55:30,222 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-10-27 14:55:30,223 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-10-27 14:55:30,223 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-10-27 14:55:30,224 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-10-27 14:55:30,224 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-10-27 14:55:30,225 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-10-27 14:55:30,226 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-10-27 14:55:30,226 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/../../../trunk/examples/settings/default/taipan/svcomp-Reach-64bit-Taipan_Default-INT.epf [2018-10-27 14:55:30,244 INFO L110 SettingsManager]: Loading preferences was successful [2018-10-27 14:55:30,244 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-10-27 14:55:30,245 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-10-27 14:55:30,245 INFO L133 SettingsManager]: * User list type=DISABLED [2018-10-27 14:55:30,246 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-10-27 14:55:30,246 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-10-27 14:55:30,246 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-10-27 14:55:30,246 INFO L133 SettingsManager]: * Octagon Domain=false [2018-10-27 14:55:30,247 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-10-27 14:55:30,247 INFO L133 SettingsManager]: * Log string format=TERM [2018-10-27 14:55:30,247 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-10-27 14:55:30,248 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-10-27 14:55:30,248 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-10-27 14:55:30,249 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-10-27 14:55:30,249 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-10-27 14:55:30,249 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-10-27 14:55:30,249 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-10-27 14:55:30,250 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-10-27 14:55:30,250 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-10-27 14:55:30,250 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-10-27 14:55:30,250 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-10-27 14:55:30,251 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-10-27 14:55:30,251 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-10-27 14:55:30,251 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-10-27 14:55:30,251 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-10-27 14:55:30,252 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-10-27 14:55:30,252 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-10-27 14:55:30,252 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-10-27 14:55:30,252 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-10-27 14:55:30,252 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-10-27 14:55:30,253 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-10-27 14:55:30,253 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-10-27 14:55:30,253 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-10-27 14:55:30,253 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-10-27 14:55:30,315 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-10-27 14:55:30,336 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-10-27 14:55:30,341 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-10-27 14:55:30,343 INFO L271 PluginConnector]: Initializing CDTParser... [2018-10-27 14:55:30,343 INFO L276 PluginConnector]: CDTParser initialized [2018-10-27 14:55:30,344 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem17_label14_true-unreach-call.c [2018-10-27 14:55:30,414 INFO L218 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/19a586570/c8f6636efa2a499dbe560b0c8a723c34/FLAGbffed9bad [2018-10-27 14:55:31,124 INFO L298 CDTParser]: Found 1 translation units. [2018-10-27 14:55:31,125 INFO L158 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem17_label14_true-unreach-call.c [2018-10-27 14:55:31,153 INFO L346 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/19a586570/c8f6636efa2a499dbe560b0c8a723c34/FLAGbffed9bad [2018-10-27 14:55:31,169 INFO L354 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/19a586570/c8f6636efa2a499dbe560b0c8a723c34 [2018-10-27 14:55:31,181 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-10-27 14:55:31,183 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-10-27 14:55:31,184 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-10-27 14:55:31,184 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-10-27 14:55:31,191 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-10-27 14:55:31,193 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.10 02:55:31" (1/1) ... [2018-10-27 14:55:31,197 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@382e8d93 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 02:55:31, skipping insertion in model container [2018-10-27 14:55:31,197 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.10 02:55:31" (1/1) ... [2018-10-27 14:55:31,210 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-10-27 14:55:31,340 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-10-27 14:55:32,345 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-27 14:55:32,351 INFO L189 MainTranslator]: Completed pre-run [2018-10-27 14:55:32,729 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-27 14:55:32,752 INFO L193 MainTranslator]: Completed translation [2018-10-27 14:55:32,753 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 02:55:32 WrapperNode [2018-10-27 14:55:32,753 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-10-27 14:55:32,754 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-10-27 14:55:32,754 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-10-27 14:55:32,755 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-10-27 14:55:32,764 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 02:55:32" (1/1) ... [2018-10-27 14:55:32,817 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 02:55:32" (1/1) ... [2018-10-27 14:55:33,191 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-10-27 14:55:33,191 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-10-27 14:55:33,191 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-10-27 14:55:33,192 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-10-27 14:55:33,203 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 02:55:32" (1/1) ... [2018-10-27 14:55:33,203 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 02:55:32" (1/1) ... [2018-10-27 14:55:33,229 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 02:55:32" (1/1) ... [2018-10-27 14:55:33,230 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 02:55:32" (1/1) ... [2018-10-27 14:55:33,319 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 02:55:32" (1/1) ... [2018-10-27 14:55:33,360 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 02:55:32" (1/1) ... [2018-10-27 14:55:33,396 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 02:55:32" (1/1) ... [2018-10-27 14:55:33,452 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-10-27 14:55:33,453 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-10-27 14:55:33,453 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-10-27 14:55:33,453 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-10-27 14:55:33,455 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 02:55:32" (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 14:55:33,524 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-10-27 14:55:33,525 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-10-27 14:55:33,525 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output2 [2018-10-27 14:55:33,525 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output2 [2018-10-27 14:55:33,525 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2018-10-27 14:55:33,526 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2018-10-27 14:55:33,526 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-10-27 14:55:33,526 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-10-27 14:55:33,526 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-10-27 14:55:33,526 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-10-27 14:55:45,260 INFO L341 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-10-27 14:55:45,261 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.10 02:55:45 BoogieIcfgContainer [2018-10-27 14:55:45,261 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-10-27 14:55:45,262 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-10-27 14:55:45,263 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-10-27 14:55:45,266 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-10-27 14:55:45,266 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 27.10 02:55:31" (1/3) ... [2018-10-27 14:55:45,267 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1f9b34d3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.10 02:55:45, skipping insertion in model container [2018-10-27 14:55:45,267 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 02:55:32" (2/3) ... [2018-10-27 14:55:45,268 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1f9b34d3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.10 02:55:45, skipping insertion in model container [2018-10-27 14:55:45,268 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.10 02:55:45" (3/3) ... [2018-10-27 14:55:45,270 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem17_label14_true-unreach-call.c [2018-10-27 14:55:45,280 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-10-27 14:55:45,290 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-10-27 14:55:45,306 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-10-27 14:55:45,350 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-10-27 14:55:45,350 INFO L383 AbstractCegarLoop]: Hoare is true [2018-10-27 14:55:45,350 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-10-27 14:55:45,351 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-10-27 14:55:45,351 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-10-27 14:55:45,351 INFO L387 AbstractCegarLoop]: Difference is false [2018-10-27 14:55:45,351 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-10-27 14:55:45,351 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-10-27 14:55:45,388 INFO L276 IsEmpty]: Start isEmpty. Operand 604 states. [2018-10-27 14:55:45,398 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2018-10-27 14:55:45,398 INFO L367 BasicCegarLoop]: Found error trace [2018-10-27 14:55:45,399 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 14:55:45,402 INFO L424 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-27 14:55:45,408 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-27 14:55:45,408 INFO L82 PathProgramCache]: Analyzing trace with hash 104391076, now seen corresponding path program 1 times [2018-10-27 14:55:45,411 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-27 14:55:45,471 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 14:55:45,471 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-27 14:55:45,471 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 14:55:45,472 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-27 14:55:45,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-27 14:55:46,005 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 14:55:46,008 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-27 14:55:46,008 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-10-27 14:55:46,009 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-27 14:55:46,015 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-10-27 14:55:46,032 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-10-27 14:55:46,033 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-27 14:55:46,037 INFO L87 Difference]: Start difference. First operand 604 states. Second operand 4 states. [2018-10-27 14:55:55,323 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-27 14:55:55,323 INFO L93 Difference]: Finished difference Result 2162 states and 4007 transitions. [2018-10-27 14:55:55,324 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-10-27 14:55:55,325 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 54 [2018-10-27 14:55:55,326 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-27 14:55:55,360 INFO L225 Difference]: With dead ends: 2162 [2018-10-27 14:55:55,360 INFO L226 Difference]: Without dead ends: 1552 [2018-10-27 14:55:55,374 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-27 14:55:55,396 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1552 states. [2018-10-27 14:55:55,523 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1552 to 1525. [2018-10-27 14:55:55,525 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1525 states. [2018-10-27 14:55:55,539 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1525 states to 1525 states and 2696 transitions. [2018-10-27 14:55:55,541 INFO L78 Accepts]: Start accepts. Automaton has 1525 states and 2696 transitions. Word has length 54 [2018-10-27 14:55:55,542 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-27 14:55:55,543 INFO L481 AbstractCegarLoop]: Abstraction has 1525 states and 2696 transitions. [2018-10-27 14:55:55,543 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-10-27 14:55:55,543 INFO L276 IsEmpty]: Start isEmpty. Operand 1525 states and 2696 transitions. [2018-10-27 14:55:55,559 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134 [2018-10-27 14:55:55,560 INFO L367 BasicCegarLoop]: Found error trace [2018-10-27 14:55:55,561 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] [2018-10-27 14:55:55,561 INFO L424 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-27 14:55:55,561 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-27 14:55:55,562 INFO L82 PathProgramCache]: Analyzing trace with hash -733218574, now seen corresponding path program 1 times [2018-10-27 14:55:55,562 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-27 14:55:55,563 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 14:55:55,564 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-27 14:55:55,564 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 14:55:55,564 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-27 14:55:55,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-27 14:55:56,045 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 14:55:56,046 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-27 14:55:56,046 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-10-27 14:55:56,046 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-27 14:55:56,048 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-10-27 14:55:56,049 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-10-27 14:55:56,049 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2018-10-27 14:55:56,049 INFO L87 Difference]: Start difference. First operand 1525 states and 2696 transitions. Second operand 6 states. [2018-10-27 14:56:14,934 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-27 14:56:14,935 INFO L93 Difference]: Finished difference Result 5787 states and 10682 transitions. [2018-10-27 14:56:14,935 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-10-27 14:56:14,935 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 133 [2018-10-27 14:56:14,936 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-27 14:56:14,971 INFO L225 Difference]: With dead ends: 5787 [2018-10-27 14:56:14,971 INFO L226 Difference]: Without dead ends: 4268 [2018-10-27 14:56:14,993 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2018-10-27 14:56:14,997 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4268 states. [2018-10-27 14:56:15,106 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4268 to 4242. [2018-10-27 14:56:15,107 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4242 states. [2018-10-27 14:56:15,130 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4242 states to 4242 states and 6360 transitions. [2018-10-27 14:56:15,130 INFO L78 Accepts]: Start accepts. Automaton has 4242 states and 6360 transitions. Word has length 133 [2018-10-27 14:56:15,131 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-27 14:56:15,131 INFO L481 AbstractCegarLoop]: Abstraction has 4242 states and 6360 transitions. [2018-10-27 14:56:15,131 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-10-27 14:56:15,132 INFO L276 IsEmpty]: Start isEmpty. Operand 4242 states and 6360 transitions. [2018-10-27 14:56:15,136 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2018-10-27 14:56:15,137 INFO L367 BasicCegarLoop]: Found error trace [2018-10-27 14:56:15,137 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] [2018-10-27 14:56:15,137 INFO L424 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-27 14:56:15,138 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-27 14:56:15,141 INFO L82 PathProgramCache]: Analyzing trace with hash 9362786, now seen corresponding path program 1 times [2018-10-27 14:56:15,141 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-27 14:56:15,142 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 14:56:15,142 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-27 14:56:15,142 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 14:56:15,142 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-27 14:56:15,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-27 14:56:15,356 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 14:56:15,357 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-27 14:56:15,357 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-10-27 14:56:15,357 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-27 14:56:15,358 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-10-27 14:56:15,358 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-10-27 14:56:15,358 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-10-27 14:56:15,359 INFO L87 Difference]: Start difference. First operand 4242 states and 6360 transitions. Second operand 6 states. [2018-10-27 14:56:21,173 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-27 14:56:21,173 INFO L93 Difference]: Finished difference Result 12710 states and 20700 transitions. [2018-10-27 14:56:21,175 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-10-27 14:56:21,175 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 134 [2018-10-27 14:56:21,176 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-27 14:56:21,240 INFO L225 Difference]: With dead ends: 12710 [2018-10-27 14:56:21,240 INFO L226 Difference]: Without dead ends: 8474 [2018-10-27 14:56:21,271 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2018-10-27 14:56:21,278 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8474 states. [2018-10-27 14:56:21,525 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8474 to 8389. [2018-10-27 14:56:21,525 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8389 states. [2018-10-27 14:56:21,564 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8389 states to 8389 states and 12579 transitions. [2018-10-27 14:56:21,564 INFO L78 Accepts]: Start accepts. Automaton has 8389 states and 12579 transitions. Word has length 134 [2018-10-27 14:56:21,565 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-27 14:56:21,565 INFO L481 AbstractCegarLoop]: Abstraction has 8389 states and 12579 transitions. [2018-10-27 14:56:21,565 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-10-27 14:56:21,566 INFO L276 IsEmpty]: Start isEmpty. Operand 8389 states and 12579 transitions. [2018-10-27 14:56:21,570 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 209 [2018-10-27 14:56:21,570 INFO L367 BasicCegarLoop]: Found error trace [2018-10-27 14:56:21,571 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-27 14:56:21,571 INFO L424 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-27 14:56:21,571 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-27 14:56:21,572 INFO L82 PathProgramCache]: Analyzing trace with hash 1511832028, now seen corresponding path program 1 times [2018-10-27 14:56:21,575 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-27 14:56:21,576 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 14:56:21,577 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-27 14:56:21,577 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 14:56:21,577 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-27 14:56:21,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-27 14:56:21,873 WARN L179 SmtUtils]: Spent 134.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 4 [2018-10-27 14:56:22,075 INFO L134 CoverageAnalysis]: Checked inductivity of 169 backedges. 95 proven. 5 refuted. 0 times theorem prover too weak. 69 trivial. 0 not checked. [2018-10-27 14:56:22,076 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-27 14:56:22,076 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-10-27 14:56:22,077 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 209 with the following transitions: [2018-10-27 14:56:22,079 INFO L202 CegarAbsIntRunner]: [0], [1], [711], [718], [726], [734], [742], [750], [758], [766], [774], [782], [790], [798], [806], [814], [822], [830], [838], [846], [854], [862], [870], [878], [886], [894], [902], [910], [918], [926], [934], [942], [950], [958], [966], [974], [982], [990], [998], [1006], [1014], [1022], [1030], [1038], [1042], [1044], [1047], [1055], [1063], [1071], [1079], [1087], [1095], [1103], [1111], [1119], [1127], [1135], [1143], [1151], [1159], [1167], [1175], [1183], [1191], [1199], [1204], [1208], [1212], [1216], [1220], [1223], [1224], [1228], [1232], [1236], [1239], [2279], [2283], [2287], [2293], [2297], [2299], [2306], [2307], [2308], [2310], [2311] [2018-10-27 14:56:22,149 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, IntervalDomain] [2018-10-27 14:56:22,149 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-10-27 14:56:22,568 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-10-27 14:56:25,386 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-10-27 14:56:25,388 INFO L272 AbstractInterpreter]: Visited 87 different actions 492 times. Merged at 5 different actions 25 times. Widened at 1 different actions 1 times. Found 1 fixpoints after 1 different actions. Largest state had 26 variables. [2018-10-27 14:56:25,433 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-27 14:56:25,433 INFO L398 sIntCurrentIteration]: Generating AbsInt predicates [2018-10-27 14:56:26,131 INFO L227 lantSequenceWeakener]: Weakened 205 states. On average, predicates are now at 75.72% of their original sizes. [2018-10-27 14:56:26,132 INFO L413 sIntCurrentIteration]: Unifying AI predicates [2018-10-27 14:56:26,776 INFO L415 sIntCurrentIteration]: We unified 207 AI predicates to 207 [2018-10-27 14:56:26,776 INFO L424 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-10-27 14:56:26,777 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-10-27 14:56:26,778 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [9] imperfect sequences [6] total 13 [2018-10-27 14:56:26,778 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-27 14:56:26,779 INFO L460 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-10-27 14:56:26,779 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-10-27 14:56:26,779 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2018-10-27 14:56:26,779 INFO L87 Difference]: Start difference. First operand 8389 states and 12579 transitions. Second operand 9 states. Received shutdown request... Cannot interrupt operation gracefully because timeout expired. Forcing shutdown