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/Problem10_label14_true-unreach-call.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-0fd1304 [2018-10-24 00:52:06,185 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-10-24 00:52:06,187 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-10-24 00:52:06,200 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-10-24 00:52:06,200 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-10-24 00:52:06,201 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-10-24 00:52:06,202 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-10-24 00:52:06,204 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-10-24 00:52:06,206 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-10-24 00:52:06,207 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-10-24 00:52:06,207 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-10-24 00:52:06,208 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-10-24 00:52:06,209 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-10-24 00:52:06,210 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-10-24 00:52:06,211 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-10-24 00:52:06,211 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-10-24 00:52:06,212 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-10-24 00:52:06,214 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-10-24 00:52:06,216 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-10-24 00:52:06,218 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-10-24 00:52:06,219 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-10-24 00:52:06,220 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-10-24 00:52:06,222 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-10-24 00:52:06,223 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-10-24 00:52:06,223 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-10-24 00:52:06,224 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-10-24 00:52:06,225 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-10-24 00:52:06,226 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-10-24 00:52:06,232 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-10-24 00:52:06,233 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-10-24 00:52:06,234 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-10-24 00:52:06,234 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-10-24 00:52:06,234 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-10-24 00:52:06,235 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-10-24 00:52:06,236 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-10-24 00:52:06,236 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-10-24 00:52:06,237 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 [2018-10-24 00:52:06,265 INFO L110 SettingsManager]: Loading preferences was successful [2018-10-24 00:52:06,266 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-10-24 00:52:06,267 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-10-24 00:52:06,267 INFO L133 SettingsManager]: * User list type=DISABLED [2018-10-24 00:52:06,267 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-10-24 00:52:06,267 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-10-24 00:52:06,267 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-10-24 00:52:06,268 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-10-24 00:52:06,268 INFO L133 SettingsManager]: * Log string format=TERM [2018-10-24 00:52:06,268 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-10-24 00:52:06,268 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-10-24 00:52:06,268 INFO L133 SettingsManager]: * Interval Domain=false [2018-10-24 00:52:06,269 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-10-24 00:52:06,269 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-10-24 00:52:06,269 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-10-24 00:52:06,270 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-10-24 00:52:06,270 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-10-24 00:52:06,270 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-10-24 00:52:06,270 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-10-24 00:52:06,270 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-10-24 00:52:06,270 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-10-24 00:52:06,271 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-10-24 00:52:06,271 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-10-24 00:52:06,271 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-10-24 00:52:06,271 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-10-24 00:52:06,271 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-10-24 00:52:06,272 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-10-24 00:52:06,272 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-10-24 00:52:06,272 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-10-24 00:52:06,272 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-10-24 00:52:06,272 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-10-24 00:52:06,273 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-10-24 00:52:06,273 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-10-24 00:52:06,273 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-10-24 00:52:06,322 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-10-24 00:52:06,340 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-10-24 00:52:06,343 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-10-24 00:52:06,345 INFO L271 PluginConnector]: Initializing CDTParser... [2018-10-24 00:52:06,346 INFO L276 PluginConnector]: CDTParser initialized [2018-10-24 00:52:06,346 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem10_label14_true-unreach-call.c [2018-10-24 00:52:06,408 INFO L218 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/278869343/283387d8952f4f7c8bfaf443a64a063f/FLAGe4dd3c4db [2018-10-24 00:52:07,010 INFO L298 CDTParser]: Found 1 translation units. [2018-10-24 00:52:07,011 INFO L158 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem10_label14_true-unreach-call.c [2018-10-24 00:52:07,033 INFO L346 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/278869343/283387d8952f4f7c8bfaf443a64a063f/FLAGe4dd3c4db [2018-10-24 00:52:07,055 INFO L354 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/278869343/283387d8952f4f7c8bfaf443a64a063f [2018-10-24 00:52:07,069 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-10-24 00:52:07,071 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-10-24 00:52:07,072 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-10-24 00:52:07,072 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-10-24 00:52:07,076 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-10-24 00:52:07,077 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 12:52:07" (1/1) ... [2018-10-24 00:52:07,080 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@12b8561a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 12:52:07, skipping insertion in model container [2018-10-24 00:52:07,081 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 12:52:07" (1/1) ... [2018-10-24 00:52:07,092 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-10-24 00:52:07,168 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-10-24 00:52:07,609 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-24 00:52:07,614 INFO L189 MainTranslator]: Completed pre-run [2018-10-24 00:52:07,733 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-24 00:52:07,757 INFO L193 MainTranslator]: Completed translation [2018-10-24 00:52:07,758 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 12:52:07 WrapperNode [2018-10-24 00:52:07,758 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-10-24 00:52:07,759 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-10-24 00:52:07,759 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-10-24 00:52:07,759 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-10-24 00:52:07,769 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 12:52:07" (1/1) ... [2018-10-24 00:52:07,800 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 12:52:07" (1/1) ... [2018-10-24 00:52:07,970 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-10-24 00:52:07,971 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-10-24 00:52:07,971 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-10-24 00:52:07,971 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-10-24 00:52:07,982 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 12:52:07" (1/1) ... [2018-10-24 00:52:07,982 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 12:52:07" (1/1) ... [2018-10-24 00:52:07,989 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 12:52:07" (1/1) ... [2018-10-24 00:52:07,989 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 12:52:07" (1/1) ... [2018-10-24 00:52:08,024 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 12:52:07" (1/1) ... [2018-10-24 00:52:08,034 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 12:52:07" (1/1) ... [2018-10-24 00:52:08,041 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 12:52:07" (1/1) ... [2018-10-24 00:52:08,050 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-10-24 00:52:08,050 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-10-24 00:52:08,051 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-10-24 00:52:08,051 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-10-24 00:52:08,052 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 12:52:07" (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 [2018-10-24 00:52:08,127 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-10-24 00:52:08,128 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-10-24 00:52:08,128 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2018-10-24 00:52:08,128 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2018-10-24 00:52:08,128 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-10-24 00:52:08,128 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-10-24 00:52:08,129 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-10-24 00:52:08,129 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-10-24 00:52:11,441 INFO L341 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-10-24 00:52:11,442 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 12:52:11 BoogieIcfgContainer [2018-10-24 00:52:11,442 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-10-24 00:52:11,444 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-10-24 00:52:11,447 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-10-24 00:52:11,450 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-10-24 00:52:11,451 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.10 12:52:07" (1/3) ... [2018-10-24 00:52:11,451 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5b88c425 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 12:52:11, skipping insertion in model container [2018-10-24 00:52:11,452 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 12:52:07" (2/3) ... [2018-10-24 00:52:11,453 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5b88c425 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 12:52:11, skipping insertion in model container [2018-10-24 00:52:11,453 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 12:52:11" (3/3) ... [2018-10-24 00:52:11,455 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem10_label14_true-unreach-call.c [2018-10-24 00:52:11,466 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-10-24 00:52:11,483 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-10-24 00:52:11,503 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-10-24 00:52:11,540 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-10-24 00:52:11,540 INFO L383 AbstractCegarLoop]: Hoare is true [2018-10-24 00:52:11,540 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-10-24 00:52:11,541 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-10-24 00:52:11,541 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-10-24 00:52:11,541 INFO L387 AbstractCegarLoop]: Difference is false [2018-10-24 00:52:11,542 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-10-24 00:52:11,542 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-10-24 00:52:11,569 INFO L276 IsEmpty]: Start isEmpty. Operand 216 states. [2018-10-24 00:52:11,577 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2018-10-24 00:52:11,577 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 00:52:11,578 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] [2018-10-24 00:52:11,581 INFO L424 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 00:52:11,588 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 00:52:11,589 INFO L82 PathProgramCache]: Analyzing trace with hash -1440498332, now seen corresponding path program 1 times [2018-10-24 00:52:11,591 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-24 00:52:11,651 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 00:52:11,651 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 00:52:11,652 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 00:52:11,652 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-24 00:52:11,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 00:52:12,101 WARN L179 SmtUtils]: Spent 184.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 4 [2018-10-24 00:52:12,228 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-24 00:52:12,231 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-24 00:52:12,232 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-10-24 00:52:12,232 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-24 00:52:12,238 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-10-24 00:52:12,255 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-10-24 00:52:12,256 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-10-24 00:52:12,259 INFO L87 Difference]: Start difference. First operand 216 states. Second operand 3 states. [2018-10-24 00:52:13,815 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 00:52:13,816 INFO L93 Difference]: Finished difference Result 574 states and 992 transitions. [2018-10-24 00:52:13,818 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-10-24 00:52:13,820 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 38 [2018-10-24 00:52:13,820 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 00:52:13,838 INFO L225 Difference]: With dead ends: 574 [2018-10-24 00:52:13,838 INFO L226 Difference]: Without dead ends: 356 [2018-10-24 00:52:13,845 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 2 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-10-24 00:52:13,865 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 356 states. [2018-10-24 00:52:13,917 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 356 to 356. [2018-10-24 00:52:13,919 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 356 states. [2018-10-24 00:52:13,923 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 356 states to 356 states and 609 transitions. [2018-10-24 00:52:13,925 INFO L78 Accepts]: Start accepts. Automaton has 356 states and 609 transitions. Word has length 38 [2018-10-24 00:52:13,926 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 00:52:13,926 INFO L481 AbstractCegarLoop]: Abstraction has 356 states and 609 transitions. [2018-10-24 00:52:13,926 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-10-24 00:52:13,926 INFO L276 IsEmpty]: Start isEmpty. Operand 356 states and 609 transitions. [2018-10-24 00:52:13,935 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 159 [2018-10-24 00:52:13,935 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 00:52:13,936 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-24 00:52:13,936 INFO L424 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 00:52:13,937 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 00:52:13,937 INFO L82 PathProgramCache]: Analyzing trace with hash 247043784, now seen corresponding path program 1 times [2018-10-24 00:52:13,937 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-24 00:52:13,939 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 00:52:13,939 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 00:52:13,939 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 00:52:13,939 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-24 00:52:14,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 00:52:14,406 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 31 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-24 00:52:14,406 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-24 00:52:14,407 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-10-24 00:52:14,407 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-24 00:52:14,409 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-10-24 00:52:14,410 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-10-24 00:52:14,410 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-10-24 00:52:14,410 INFO L87 Difference]: Start difference. First operand 356 states and 609 transitions. Second operand 5 states. [2018-10-24 00:52:17,356 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 00:52:17,357 INFO L93 Difference]: Finished difference Result 1140 states and 2022 transitions. [2018-10-24 00:52:17,364 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-10-24 00:52:17,364 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 158 [2018-10-24 00:52:17,365 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 00:52:17,371 INFO L225 Difference]: With dead ends: 1140 [2018-10-24 00:52:17,372 INFO L226 Difference]: Without dead ends: 790 [2018-10-24 00:52:17,375 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2018-10-24 00:52:17,376 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 790 states. [2018-10-24 00:52:17,423 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 790 to 784. [2018-10-24 00:52:17,424 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 784 states. [2018-10-24 00:52:17,432 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 784 states to 784 states and 1300 transitions. [2018-10-24 00:52:17,433 INFO L78 Accepts]: Start accepts. Automaton has 784 states and 1300 transitions. Word has length 158 [2018-10-24 00:52:17,433 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 00:52:17,434 INFO L481 AbstractCegarLoop]: Abstraction has 784 states and 1300 transitions. [2018-10-24 00:52:17,434 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-10-24 00:52:17,434 INFO L276 IsEmpty]: Start isEmpty. Operand 784 states and 1300 transitions. [2018-10-24 00:52:17,440 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 166 [2018-10-24 00:52:17,440 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 00:52:17,441 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-24 00:52:17,441 INFO L424 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 00:52:17,441 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 00:52:17,441 INFO L82 PathProgramCache]: Analyzing trace with hash 1650350691, now seen corresponding path program 1 times [2018-10-24 00:52:17,442 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-24 00:52:17,443 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 00:52:17,443 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 00:52:17,443 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 00:52:17,443 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-24 00:52:17,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 00:52:17,761 WARN L179 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 4 [2018-10-24 00:52:17,844 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 31 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-24 00:52:17,844 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-24 00:52:17,845 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-10-24 00:52:17,845 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-24 00:52:17,845 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-10-24 00:52:17,846 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-10-24 00:52:17,846 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-10-24 00:52:17,846 INFO L87 Difference]: Start difference. First operand 784 states and 1300 transitions. Second operand 6 states. [2018-10-24 00:52:22,342 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 00:52:22,343 INFO L93 Difference]: Finished difference Result 1975 states and 3367 transitions. [2018-10-24 00:52:22,344 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-10-24 00:52:22,344 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 165 [2018-10-24 00:52:22,345 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 00:52:22,354 INFO L225 Difference]: With dead ends: 1975 [2018-10-24 00:52:22,354 INFO L226 Difference]: Without dead ends: 1197 [2018-10-24 00:52:22,362 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2018-10-24 00:52:22,364 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1197 states. [2018-10-24 00:52:22,410 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1197 to 1177. [2018-10-24 00:52:22,411 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1177 states. [2018-10-24 00:52:22,418 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1177 states to 1177 states and 1754 transitions. [2018-10-24 00:52:22,419 INFO L78 Accepts]: Start accepts. Automaton has 1177 states and 1754 transitions. Word has length 165 [2018-10-24 00:52:22,419 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 00:52:22,419 INFO L481 AbstractCegarLoop]: Abstraction has 1177 states and 1754 transitions. [2018-10-24 00:52:22,420 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-10-24 00:52:22,422 INFO L276 IsEmpty]: Start isEmpty. Operand 1177 states and 1754 transitions. [2018-10-24 00:52:22,430 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 230 [2018-10-24 00:52:22,430 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 00:52:22,431 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2018-10-24 00:52:22,431 INFO L424 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 00:52:22,431 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 00:52:22,431 INFO L82 PathProgramCache]: Analyzing trace with hash -837763145, now seen corresponding path program 1 times [2018-10-24 00:52:22,432 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-24 00:52:22,432 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 00:52:22,433 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 00:52:22,433 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 00:52:22,433 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-24 00:52:22,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 00:52:23,127 WARN L179 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 13 [2018-10-24 00:52:23,711 INFO L134 CoverageAnalysis]: Checked inductivity of 133 backedges. 131 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-24 00:52:23,711 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-24 00:52:23,711 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-10-24 00:52:23,712 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 230 with the following transitions: [2018-10-24 00:52:23,715 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], [205], [207], [210], [218], [226], [234], [242], [250], [258], [266], [274], [282], [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], [499], [503], [507], [511], [515], [519], [523], [527], [531], [535], [539], [543], [547], [551], [555], [559], [563], [567], [571], [575], [579], [583], [587], [591], [595], [599], [603], [607], [611], [615], [619], [623], [627], [631], [635], [639], [643], [647], [651], [655], [659], [663], [667], [671], [675], [679], [683], [687], [691], [694], [792], [796], [800], [806], [810], [812], [817], [818], [819], [821], [822] [2018-10-24 00:52:23,795 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-10-24 00:52:23,795 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-10-24 00:52:25,928 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-10-24 00:52:49,819 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-10-24 00:52:49,821 INFO L272 AbstractInterpreter]: Visited 128 different actions 738 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 24 variables. [2018-10-24 00:52:49,840 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 00:52:49,840 INFO L398 sIntCurrentIteration]: Generating AbsInt predicates [2018-10-24 00:52:53,473 INFO L232 lantSequenceWeakener]: Weakened 56 states. On average, predicates are now at 75.3% of their original sizes. [2018-10-24 00:52:53,474 INFO L411 sIntCurrentIteration]: Unifying AI predicates [2018-10-24 00:53:11,320 INFO L422 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-10-24 00:53:11,321 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-10-24 00:53:11,321 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [16] imperfect sequences [13] total 27 [2018-10-24 00:53:11,321 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-24 00:53:11,322 INFO L460 AbstractCegarLoop]: Interpolant automaton has 16 states [2018-10-24 00:53:11,322 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2018-10-24 00:53:11,323 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=56, Invalid=184, Unknown=0, NotChecked=0, Total=240 [2018-10-24 00:53:11,323 INFO L87 Difference]: Start difference. First operand 1177 states and 1754 transitions. Second operand 16 states. [2018-10-24 00:55:16,909 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 00:55:16,910 INFO L93 Difference]: Finished difference Result 2808 states and 4265 transitions. [2018-10-24 00:55:16,910 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2018-10-24 00:55:16,910 INFO L78 Accepts]: Start accepts. Automaton has 16 states. Word has length 229 [2018-10-24 00:55:16,911 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 00:55:16,920 INFO L225 Difference]: With dead ends: 2808 [2018-10-24 00:55:16,920 INFO L226 Difference]: Without dead ends: 1637 [2018-10-24 00:55:16,925 INFO L605 BasicCegarLoop]: 2 DeclaredPredicates, 236 GetRequests, 188 SyntacticMatches, 26 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 185 ImplicationChecksByTransitivity, 19.3s TimeCoverageRelationStatistics Valid=123, Invalid=429, Unknown=0, NotChecked=0, Total=552 [2018-10-24 00:55:16,926 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1637 states. [2018-10-24 00:55:17,036 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1637 to 1619. [2018-10-24 00:55:17,037 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1619 states. [2018-10-24 00:55:17,043 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1619 states to 1619 states and 2226 transitions. [2018-10-24 00:55:17,044 INFO L78 Accepts]: Start accepts. Automaton has 1619 states and 2226 transitions. Word has length 229 [2018-10-24 00:55:17,044 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 00:55:17,044 INFO L481 AbstractCegarLoop]: Abstraction has 1619 states and 2226 transitions. [2018-10-24 00:55:17,044 INFO L482 AbstractCegarLoop]: Interpolant automaton has 16 states. [2018-10-24 00:55:17,045 INFO L276 IsEmpty]: Start isEmpty. Operand 1619 states and 2226 transitions. [2018-10-24 00:55:17,051 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 239 [2018-10-24 00:55:17,051 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 00:55:17,052 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2018-10-24 00:55:17,052 INFO L424 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 00:55:17,052 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 00:55:17,052 INFO L82 PathProgramCache]: Analyzing trace with hash 910411004, now seen corresponding path program 1 times [2018-10-24 00:55:17,053 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-24 00:55:17,054 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 00:55:17,054 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 00:55:17,054 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 00:55:17,054 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-24 00:55:17,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 00:55:17,365 WARN L179 SmtUtils]: Spent 166.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 4 [2018-10-24 00:55:17,653 INFO L134 CoverageAnalysis]: Checked inductivity of 142 backedges. 63 proven. 6 refuted. 0 times theorem prover too weak. 73 trivial. 0 not checked. [2018-10-24 00:55:17,654 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-24 00:55:17,654 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-10-24 00:55:17,654 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 239 with the following transitions: [2018-10-24 00:55:17,655 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], [205], [207], [210], [218], [226], [234], [242], [250], [258], [266], [274], [282], [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], [535], [539], [543], [547], [551], [555], [559], [563], [567], [571], [575], [579], [583], [587], [591], [595], [599], [603], [607], [611], [615], [619], [623], [627], [631], [635], [639], [643], [647], [651], [655], [659], [663], [667], [671], [675], [679], [683], [687], [691], [694], [792], [796], [800], [806], [810], [812], [817], [818], [819], [821], [822] [2018-10-24 00:55:17,666 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-10-24 00:55:17,667 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-10-24 00:55:19,270 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-10-24 00:55:39,967 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-10-24 00:55:39,967 INFO L272 AbstractInterpreter]: Visited 128 different actions 738 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 24 variables. [2018-10-24 00:55:39,972 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 00:55:39,972 INFO L398 sIntCurrentIteration]: Generating AbsInt predicates [2018-10-24 00:55:42,252 INFO L232 lantSequenceWeakener]: Weakened 53 states. On average, predicates are now at 74.1% of their original sizes. [2018-10-24 00:55:42,253 INFO L411 sIntCurrentIteration]: Unifying AI predicates Received shutdown request... [2018-10-24 00:56:02,869 WARN L550 AbstractCegarLoop]: Verification canceled [2018-10-24 00:56:02,874 WARN L205 ceAbstractionStarter]: Timeout [2018-10-24 00:56:02,875 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.10 12:56:02 BoogieIcfgContainer [2018-10-24 00:56:02,875 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-10-24 00:56:02,876 INFO L168 Benchmark]: Toolchain (without parser) took 235806.39 ms. Allocated memory was 1.5 GB in the beginning and 4.1 GB in the end (delta: 2.6 GB). Free memory was 1.4 GB in the beginning and 3.4 GB in the end (delta: -2.1 GB). Peak memory consumption was 569.4 MB. Max. memory is 7.1 GB. [2018-10-24 00:56:02,877 INFO L168 Benchmark]: CDTParser took 0.21 ms. Allocated memory is still 1.5 GB. Free memory is still 1.4 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-10-24 00:56:02,878 INFO L168 Benchmark]: CACSL2BoogieTranslator took 686.34 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.4 GB in the end (delta: 31.7 MB). Peak memory consumption was 31.7 MB. Max. memory is 7.1 GB. [2018-10-24 00:56:02,880 INFO L168 Benchmark]: Boogie Procedure Inliner took 211.24 ms. Allocated memory was 1.5 GB in the beginning and 2.2 GB in the end (delta: 714.6 MB). Free memory was 1.4 GB in the beginning and 2.2 GB in the end (delta: -789.3 MB). Peak memory consumption was 18.9 MB. Max. memory is 7.1 GB. [2018-10-24 00:56:02,882 INFO L168 Benchmark]: Boogie Preprocessor took 79.36 ms. Allocated memory is still 2.2 GB. Free memory is still 2.2 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-10-24 00:56:02,882 INFO L168 Benchmark]: RCFGBuilder took 3391.99 ms. Allocated memory is still 2.2 GB. Free memory was 2.2 GB in the beginning and 2.0 GB in the end (delta: 121.1 MB). Peak memory consumption was 121.1 MB. Max. memory is 7.1 GB. [2018-10-24 00:56:02,883 INFO L168 Benchmark]: TraceAbstraction took 231431.42 ms. Allocated memory was 2.2 GB in the beginning and 4.1 GB in the end (delta: 1.9 GB). Free memory was 2.0 GB in the beginning and 3.4 GB in the end (delta: -1.4 GB). Peak memory consumption was 491.3 MB. Max. memory is 7.1 GB. [2018-10-24 00:56:02,892 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 1.4 GB. There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 686.34 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.4 GB in the end (delta: 31.7 MB). Peak memory consumption was 31.7 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 211.24 ms. Allocated memory was 1.5 GB in the beginning and 2.2 GB in the end (delta: 714.6 MB). Free memory was 1.4 GB in the beginning and 2.2 GB in the end (delta: -789.3 MB). Peak memory consumption was 18.9 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 79.36 ms. Allocated memory is still 2.2 GB. Free memory is still 2.2 GB. There was no memory consumed. Max. memory is 7.1 GB. * RCFGBuilder took 3391.99 ms. Allocated memory is still 2.2 GB. Free memory was 2.2 GB in the beginning and 2.0 GB in the end (delta: 121.1 MB). Peak memory consumption was 121.1 MB. Max. memory is 7.1 GB. * TraceAbstraction took 231431.42 ms. Allocated memory was 2.2 GB in the beginning and 4.1 GB in the end (delta: 1.9 GB). Free memory was 2.0 GB in the beginning and 3.4 GB in the end (delta: -1.4 GB). Peak memory consumption was 491.3 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResultAtElement [Line: 97]: Timeout (TraceAbstraction) Unable to prove that call of __VERIFIER_error() unreachable (line 97). Cancelled while BasicCegarLoop was analyzing trace of length 239 with TraceHistMax 3,while AbsIntCurrentIteration was generating AI predicates,while PredicateComparison was comparing new predicate (quantifier-free) to 15 known predicates. - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 216 locations, 1 error locations. TIMEOUT Result, 231.3s OverallTime, 5 OverallIterations, 3 TraceHistogramMax, 134.6s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 455 SDtfs, 2720 SDslu, 552 SDs, 0 SdLazy, 4740 SolverSat, 898 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 68.4s Time, PredicateUnifierStatistics: 2 DeclaredPredicates, 260 GetRequests, 195 SyntacticMatches, 30 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 190 ImplicationChecksByTransitivity, 19.9s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1619occurred in iteration=4, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 48.4s AbstIntTime, 2 AbstIntIterations, 2 AbstIntStrong, 0.9949275362318839 AbsIntWeakeningRatio, 0.11182795698924732 AbsIntAvgWeakeningVarsNumRemoved, 173.2537634408602 AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.2s AutomataMinimizationTime, 4 MinimizatonAttempts, 44 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 2.1s InterpolantComputationTime, 590 NumberOfCodeBlocks, 590 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 586 ConstructedInterpolants, 0 QuantifiedInterpolants, 902241 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 4 InterpolantComputations, 3 PerfectInterpolantSequences, 193/195 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Completed graceful shutdown