java -Xmx8000000000 -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -s ../../../trunk/examples/settings/default/taipan/svcomp-Reach-64bit-Taipan_Default-INT-LIM.epf -i ../../../trunk/examples/svcomp/eca-rers2012/Problem15_label38_false-unreach-call.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-df4b876 [2018-11-07 18:08:44,167 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-07 18:08:44,170 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-07 18:08:44,182 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-07 18:08:44,183 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-07 18:08:44,184 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-07 18:08:44,185 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-07 18:08:44,189 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-07 18:08:44,191 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-07 18:08:44,192 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-07 18:08:44,193 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-07 18:08:44,193 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-07 18:08:44,194 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-07 18:08:44,195 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-07 18:08:44,196 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-07 18:08:44,197 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-07 18:08:44,198 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-07 18:08:44,200 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-07 18:08:44,202 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-07 18:08:44,204 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-07 18:08:44,205 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-07 18:08:44,206 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-07 18:08:44,211 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-07 18:08:44,212 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-07 18:08:44,212 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-07 18:08:44,213 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-07 18:08:44,214 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-07 18:08:44,215 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-07 18:08:44,216 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-07 18:08:44,217 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-07 18:08:44,217 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-07 18:08:44,218 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-07 18:08:44,218 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-07 18:08:44,218 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-07 18:08:44,219 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-07 18:08:44,220 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-07 18:08:44,221 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/taipan/svcomp-Reach-64bit-Taipan_Default-INT-LIM.epf [2018-11-07 18:08:44,237 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-07 18:08:44,237 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-07 18:08:44,238 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-07 18:08:44,238 INFO L133 SettingsManager]: * User list type=DISABLED [2018-11-07 18:08:44,238 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-11-07 18:08:44,238 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-11-07 18:08:44,238 INFO L133 SettingsManager]: * Maximum recursion depth of evaluation operations=6 [2018-11-07 18:08:44,239 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-11-07 18:08:44,239 INFO L133 SettingsManager]: * Octagon Domain=false [2018-11-07 18:08:44,239 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-11-07 18:08:44,239 INFO L133 SettingsManager]: * Log string format=TERM [2018-11-07 18:08:44,239 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-11-07 18:08:44,240 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-11-07 18:08:44,240 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-07 18:08:44,242 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-07 18:08:44,242 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-07 18:08:44,242 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-07 18:08:44,242 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-07 18:08:44,242 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-07 18:08:44,243 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-07 18:08:44,243 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-07 18:08:44,243 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-07 18:08:44,243 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-07 18:08:44,243 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-07 18:08:44,244 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-07 18:08:44,244 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-07 18:08:44,244 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-07 18:08:44,244 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-07 18:08:44,244 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-07 18:08:44,245 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-11-07 18:08:44,247 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-07 18:08:44,247 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-11-07 18:08:44,247 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-11-07 18:08:44,247 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-11-07 18:08:44,248 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-11-07 18:08:44,311 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-07 18:08:44,332 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-07 18:08:44,336 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-07 18:08:44,338 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-07 18:08:44,338 INFO L276 PluginConnector]: CDTParser initialized [2018-11-07 18:08:44,339 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem15_label38_false-unreach-call.c [2018-11-07 18:08:44,402 INFO L218 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/74e3c16aa/3d007953670549928acb903a699368b9/FLAGf78638f38 [2018-11-07 18:08:45,078 INFO L298 CDTParser]: Found 1 translation units. [2018-11-07 18:08:45,080 INFO L158 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem15_label38_false-unreach-call.c [2018-11-07 18:08:45,102 INFO L346 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/74e3c16aa/3d007953670549928acb903a699368b9/FLAGf78638f38 [2018-11-07 18:08:45,122 INFO L354 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/74e3c16aa/3d007953670549928acb903a699368b9 [2018-11-07 18:08:45,135 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-07 18:08:45,137 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-11-07 18:08:45,138 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-07 18:08:45,138 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-07 18:08:45,142 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-07 18:08:45,146 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 06:08:45" (1/1) ... [2018-11-07 18:08:45,150 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@378b024b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 06:08:45, skipping insertion in model container [2018-11-07 18:08:45,150 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 06:08:45" (1/1) ... [2018-11-07 18:08:45,161 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-07 18:08:45,254 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-11-07 18:08:46,136 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-11-07 18:08:46,141 INFO L189 MainTranslator]: Completed pre-run [2018-11-07 18:08:46,439 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-11-07 18:08:46,460 INFO L193 MainTranslator]: Completed translation [2018-11-07 18:08:46,460 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 06:08:46 WrapperNode [2018-11-07 18:08:46,460 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-07 18:08:46,461 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-07 18:08:46,461 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-07 18:08:46,462 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-07 18:08:46,473 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 06:08:46" (1/1) ... [2018-11-07 18:08:46,645 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 06:08:46" (1/1) ... [2018-11-07 18:08:46,653 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-07 18:08:46,654 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-07 18:08:46,654 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-07 18:08:46,654 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-07 18:08:46,667 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 06:08:46" (1/1) ... [2018-11-07 18:08:46,667 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 06:08:46" (1/1) ... [2018-11-07 18:08:46,679 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 06:08:46" (1/1) ... [2018-11-07 18:08:46,679 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 06:08:46" (1/1) ... [2018-11-07 18:08:46,748 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 06:08:46" (1/1) ... [2018-11-07 18:08:46,771 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 06:08:46" (1/1) ... [2018-11-07 18:08:46,794 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 06:08:46" (1/1) ... [2018-11-07 18:08:46,829 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-07 18:08:46,830 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-07 18:08:46,830 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-07 18:08:46,830 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-07 18:08:46,831 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 06:08:46" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-07 18:08:46,895 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2018-11-07 18:08:46,896 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-07 18:08:46,896 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-07 18:08:46,896 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output2 [2018-11-07 18:08:46,896 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output2 [2018-11-07 18:08:46,897 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2018-11-07 18:08:46,897 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2018-11-07 18:08:46,897 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-07 18:08:46,897 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-07 18:08:46,897 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-07 18:08:46,897 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-07 18:08:53,324 INFO L276 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-07 18:08:53,325 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 06:08:53 BoogieIcfgContainer [2018-11-07 18:08:53,325 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-07 18:08:53,326 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-07 18:08:53,327 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-07 18:08:53,330 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-07 18:08:53,330 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.11 06:08:45" (1/3) ... [2018-11-07 18:08:53,331 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3de49dad and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 06:08:53, skipping insertion in model container [2018-11-07 18:08:53,331 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 06:08:46" (2/3) ... [2018-11-07 18:08:53,332 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3de49dad and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 06:08:53, skipping insertion in model container [2018-11-07 18:08:53,332 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 06:08:53" (3/3) ... [2018-11-07 18:08:53,334 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem15_label38_false-unreach-call.c [2018-11-07 18:08:53,344 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-07 18:08:53,354 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-11-07 18:08:53,369 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-11-07 18:08:53,412 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-07 18:08:53,413 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-07 18:08:53,413 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-07 18:08:53,413 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-07 18:08:53,413 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-07 18:08:53,413 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-07 18:08:53,414 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-07 18:08:53,414 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-07 18:08:53,462 INFO L276 IsEmpty]: Start isEmpty. Operand 438 states. [2018-11-07 18:08:53,470 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2018-11-07 18:08:53,470 INFO L367 BasicCegarLoop]: Found error trace [2018-11-07 18:08:53,471 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] [2018-11-07 18:08:53,474 INFO L423 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-07 18:08:53,480 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 18:08:53,481 INFO L82 PathProgramCache]: Analyzing trace with hash 751190353, now seen corresponding path program 1 times [2018-11-07 18:08:53,483 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-07 18:08:53,534 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 18:08:53,534 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-07 18:08:53,535 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 18:08:53,535 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-07 18:08:53,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-07 18:08:53,989 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-07 18:08:53,992 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-07 18:08:53,993 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-11-07 18:08:53,993 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-07 18:08:53,999 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-11-07 18:08:54,015 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-11-07 18:08:54,016 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-11-07 18:08:54,019 INFO L87 Difference]: Start difference. First operand 438 states. Second operand 4 states. [2018-11-07 18:09:00,253 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-07 18:09:00,254 INFO L93 Difference]: Finished difference Result 1510 states and 2773 transitions. [2018-11-07 18:09:00,254 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-11-07 18:09:00,255 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 37 [2018-11-07 18:09:00,256 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-07 18:09:00,281 INFO L225 Difference]: With dead ends: 1510 [2018-11-07 18:09:00,281 INFO L226 Difference]: Without dead ends: 1066 [2018-11-07 18:09:00,292 INFO L604 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 [2018-11-07 18:09:00,311 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1066 states. [2018-11-07 18:09:00,412 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1066 to 1064. [2018-11-07 18:09:00,413 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1064 states. [2018-11-07 18:09:00,420 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1064 states to 1064 states and 1590 transitions. [2018-11-07 18:09:00,422 INFO L78 Accepts]: Start accepts. Automaton has 1064 states and 1590 transitions. Word has length 37 [2018-11-07 18:09:00,423 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-07 18:09:00,423 INFO L480 AbstractCegarLoop]: Abstraction has 1064 states and 1590 transitions. [2018-11-07 18:09:00,423 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-11-07 18:09:00,423 INFO L276 IsEmpty]: Start isEmpty. Operand 1064 states and 1590 transitions. [2018-11-07 18:09:00,430 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2018-11-07 18:09:00,431 INFO L367 BasicCegarLoop]: Found error trace [2018-11-07 18:09:00,431 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-07 18:09:00,431 INFO L423 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-07 18:09:00,435 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 18:09:00,435 INFO L82 PathProgramCache]: Analyzing trace with hash -1920544059, now seen corresponding path program 1 times [2018-11-07 18:09:00,435 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-07 18:09:00,437 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 18:09:00,437 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-07 18:09:00,438 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 18:09:00,438 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-07 18:09:00,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-07 18:09:00,764 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 30 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-07 18:09:00,764 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-07 18:09:00,764 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-11-07 18:09:00,765 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-07 18:09:00,767 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-11-07 18:09:00,767 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-11-07 18:09:00,767 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-11-07 18:09:00,768 INFO L87 Difference]: Start difference. First operand 1064 states and 1590 transitions. Second operand 4 states. [2018-11-07 18:09:06,120 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-07 18:09:06,121 INFO L93 Difference]: Finished difference Result 3981 states and 6113 transitions. [2018-11-07 18:09:06,121 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-11-07 18:09:06,121 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 107 [2018-11-07 18:09:06,122 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-07 18:09:06,143 INFO L225 Difference]: With dead ends: 3981 [2018-11-07 18:09:06,144 INFO L226 Difference]: Without dead ends: 2923 [2018-11-07 18:09:06,154 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-11-07 18:09:06,158 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2923 states. [2018-11-07 18:09:06,249 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2923 to 2921. [2018-11-07 18:09:06,250 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2921 states. [2018-11-07 18:09:06,268 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2921 states to 2921 states and 4008 transitions. [2018-11-07 18:09:06,269 INFO L78 Accepts]: Start accepts. Automaton has 2921 states and 4008 transitions. Word has length 107 [2018-11-07 18:09:06,269 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-07 18:09:06,269 INFO L480 AbstractCegarLoop]: Abstraction has 2921 states and 4008 transitions. [2018-11-07 18:09:06,270 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-11-07 18:09:06,270 INFO L276 IsEmpty]: Start isEmpty. Operand 2921 states and 4008 transitions. [2018-11-07 18:09:06,278 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 218 [2018-11-07 18:09:06,278 INFO L367 BasicCegarLoop]: Found error trace [2018-11-07 18:09:06,278 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2018-11-07 18:09:06,279 INFO L423 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-07 18:09:06,279 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 18:09:06,279 INFO L82 PathProgramCache]: Analyzing trace with hash 1746176702, now seen corresponding path program 1 times [2018-11-07 18:09:06,279 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-07 18:09:06,280 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 18:09:06,281 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-07 18:09:06,281 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 18:09:06,281 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-07 18:09:06,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-07 18:09:06,789 INFO L134 CoverageAnalysis]: Checked inductivity of 144 backedges. 61 proven. 77 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2018-11-07 18:09:06,790 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-07 18:09:06,790 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-07 18:09:06,791 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 218 with the following transitions: [2018-11-07 18:09:06,794 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], [269], [271], [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], [498], [506], [514], [522], [530], [538], [546], [554], [562], [567], [571], [582], [586], [590], [594], [598], [602], [606], [610], [614], [618], [622], [626], [629], [630], [641], [645], [649], [653], [657], [668], [672], [676], [680], [684], [688], [691], [1635], [1639], [1643], [1649], [1653], [1655], [1662], [1663], [1664], [1666], [1667] [2018-11-07 18:09:06,847 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, IntervalDomain] [2018-11-07 18:09:06,847 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-07 18:09:07,421 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-11-07 18:09:09,212 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-11-07 18:09:09,214 INFO L272 AbstractInterpreter]: Visited 104 different actions 692 times. Merged at 5 different actions 30 times. Widened at 1 different actions 2 times. Found 1 fixpoints after 1 different actions. Largest state had 24 variables. [2018-11-07 18:09:09,266 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 18:09:09,266 INFO L398 sIntCurrentIteration]: Generating AbsInt predicates [2018-11-07 18:09:10,584 INFO L227 lantSequenceWeakener]: Weakened 55 states. On average, predicates are now at 78.84% of their original sizes. [2018-11-07 18:09:10,584 INFO L413 sIntCurrentIteration]: Unifying AI predicates [2018-11-07 18:09:16,367 INFO L415 sIntCurrentIteration]: We unified 216 AI predicates to 216 [2018-11-07 18:09:16,367 INFO L424 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-11-07 18:09:16,369 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-11-07 18:09:16,369 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [19] imperfect sequences [6] total 23 [2018-11-07 18:09:16,369 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-07 18:09:16,370 INFO L459 AbstractCegarLoop]: Interpolant automaton has 19 states [2018-11-07 18:09:16,371 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2018-11-07 18:09:16,371 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=80, Invalid=262, Unknown=0, NotChecked=0, Total=342 [2018-11-07 18:09:16,371 INFO L87 Difference]: Start difference. First operand 2921 states and 4008 transitions. Second operand 19 states. [2018-11-07 18:10:09,179 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-07 18:10:09,179 INFO L93 Difference]: Finished difference Result 8671 states and 11318 transitions. [2018-11-07 18:10:09,179 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2018-11-07 18:10:09,179 INFO L78 Accepts]: Start accepts. Automaton has 19 states. Word has length 217 [2018-11-07 18:10:09,181 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-07 18:10:09,207 INFO L225 Difference]: With dead ends: 8671 [2018-11-07 18:10:09,207 INFO L226 Difference]: Without dead ends: 5756 [2018-11-07 18:10:09,221 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 229 GetRequests, 109 SyntacticMatches, 90 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1017 ImplicationChecksByTransitivity, 6.5s TimeCoverageRelationStatistics Valid=223, Invalid=769, Unknown=0, NotChecked=0, Total=992 [2018-11-07 18:10:09,226 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5756 states. [2018-11-07 18:10:09,327 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5756 to 4756. [2018-11-07 18:10:09,327 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4756 states. [2018-11-07 18:10:09,344 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4756 states to 4756 states and 5912 transitions. [2018-11-07 18:10:09,344 INFO L78 Accepts]: Start accepts. Automaton has 4756 states and 5912 transitions. Word has length 217 [2018-11-07 18:10:09,345 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-07 18:10:09,345 INFO L480 AbstractCegarLoop]: Abstraction has 4756 states and 5912 transitions. [2018-11-07 18:10:09,345 INFO L481 AbstractCegarLoop]: Interpolant automaton has 19 states. [2018-11-07 18:10:09,346 INFO L276 IsEmpty]: Start isEmpty. Operand 4756 states and 5912 transitions. [2018-11-07 18:10:09,360 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 467 [2018-11-07 18:10:09,360 INFO L367 BasicCegarLoop]: Found error trace [2018-11-07 18:10:09,361 INFO L375 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-07 18:10:09,361 INFO L423 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-07 18:10:09,362 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 18:10:09,362 INFO L82 PathProgramCache]: Analyzing trace with hash 1362182927, now seen corresponding path program 1 times [2018-11-07 18:10:09,362 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-07 18:10:09,363 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 18:10:09,363 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-07 18:10:09,364 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 18:10:09,364 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-07 18:10:09,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-07 18:10:10,216 INFO L134 CoverageAnalysis]: Checked inductivity of 314 backedges. 92 proven. 4 refuted. 0 times theorem prover too weak. 218 trivial. 0 not checked. [2018-11-07 18:10:10,216 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-07 18:10:10,216 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-07 18:10:10,217 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 467 with the following transitions: [2018-11-07 18:10:10,220 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], [269], [271], [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], [498], [506], [514], [522], [530], [538], [546], [554], [562], [566], [567], [571], [582], [586], [590], [594], [598], [602], [606], [610], [614], [618], [622], [626], [629], [630], [641], [645], [649], [653], [657], [668], [672], [676], [680], [684], [688], [692], [696], [707], [711], [715], [719], [723], [727], [731], [735], [739], [743], [747], [751], [755], [759], [763], [767], [771], [775], [779], [783], [787], [798], [809], [813], [824], [835], [839], [850], [854], [865], [869], [873], [877], [881], [885], [896], [900], [904], [908], [912], [916], [920], [924], [935], [939], [943], [947], [951], [955], [959], [963], [967], [971], [975], [979], [983], [987], [991], [1002], [1006], [1010], [1014], [1018], [1029], [1033], [1037], [1041], [1045], [1049], [1053], [1057], [1061], [1072], [1076], [1080], [1084], [1088], [1092], [1096], [1100], [1104], [1108], [1112], [1116], [1120], [1124], [1128], [1132], [1136], [1140], [1144], [1148], [1152], [1156], [1160], [1164], [1168], [1172], [1176], [1180], [1191], [1202], [1206], [1210], [1214], [1218], [1229], [1233], [1237], [1241], [1245], [1256], [1260], [1264], [1268], [1272], [1276], [1280], [1284], [1288], [1292], [1296], [1300], [1304], [1308], [1312], [1316], [1320], [1324], [1328], [1332], [1336], [1340], [1344], [1348], [1352], [1356], [1367], [1371], [1375], [1379], [1383], [1394], [1398], [1402], [1406], [1417], [1421], [1425], [1429], [1433], [1437], [1441], [1452], [1456], [1460], [1471], [1475], [1486], [1490], [1494], [1498], [1502], [1506], [1510], [1514], [1518], [1522], [1526], [1530], [1534], [1538], [1542], [1546], [1550], [1554], [1558], [1561], [1635], [1639], [1643], [1649], [1653], [1655], [1662], [1663], [1664], [1666], [1667] [2018-11-07 18:10:10,241 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, IntervalDomain] [2018-11-07 18:10:10,241 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-07 18:10:10,294 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-11-07 18:10:11,808 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-11-07 18:10:11,808 INFO L272 AbstractInterpreter]: Visited 284 different actions 851 times. Merged at 7 different actions 21 times. Never widened. Found 3 fixpoints after 2 different actions. Largest state had 24 variables. [2018-11-07 18:10:11,816 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 18:10:11,816 INFO L398 sIntCurrentIteration]: Generating AbsInt predicates [2018-11-07 18:10:12,396 INFO L227 lantSequenceWeakener]: Weakened 463 states. On average, predicates are now at 80.19% of their original sizes. [2018-11-07 18:10:12,396 INFO L413 sIntCurrentIteration]: Unifying AI predicates [2018-11-07 18:10:12,506 INFO L415 sIntCurrentIteration]: We unified 465 AI predicates to 465 [2018-11-07 18:10:12,507 INFO L424 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-11-07 18:10:12,507 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-11-07 18:10:12,507 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [10] imperfect sequences [5] total 13 [2018-11-07 18:10:12,507 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-07 18:10:12,508 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2018-11-07 18:10:12,508 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2018-11-07 18:10:12,508 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2018-11-07 18:10:12,509 INFO L87 Difference]: Start difference. First operand 4756 states and 5912 transitions. Second operand 10 states. [2018-11-07 18:10:42,939 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-07 18:10:42,940 INFO L93 Difference]: Finished difference Result 9868 states and 12468 transitions. [2018-11-07 18:10:42,940 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2018-11-07 18:10:42,940 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 466 [2018-11-07 18:10:42,942 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-07 18:10:42,973 INFO L225 Difference]: With dead ends: 9868 [2018-11-07 18:10:42,973 INFO L226 Difference]: Without dead ends: 6953 [2018-11-07 18:10:42,985 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 472 GetRequests, 457 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 33 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=68, Invalid=204, Unknown=0, NotChecked=0, Total=272 [2018-11-07 18:10:42,991 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6953 states. [2018-11-07 18:10:43,123 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6953 to 6941. [2018-11-07 18:10:43,123 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6941 states. [2018-11-07 18:10:43,140 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6941 states to 6941 states and 8251 transitions. [2018-11-07 18:10:43,140 INFO L78 Accepts]: Start accepts. Automaton has 6941 states and 8251 transitions. Word has length 466 [2018-11-07 18:10:43,141 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-07 18:10:43,141 INFO L480 AbstractCegarLoop]: Abstraction has 6941 states and 8251 transitions. [2018-11-07 18:10:43,141 INFO L481 AbstractCegarLoop]: Interpolant automaton has 10 states. [2018-11-07 18:10:43,141 INFO L276 IsEmpty]: Start isEmpty. Operand 6941 states and 8251 transitions. [2018-11-07 18:10:43,159 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 508 [2018-11-07 18:10:43,159 INFO L367 BasicCegarLoop]: Found error trace [2018-11-07 18:10:43,160 INFO L375 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-07 18:10:43,160 INFO L423 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-07 18:10:43,160 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 18:10:43,160 INFO L82 PathProgramCache]: Analyzing trace with hash 1961841024, now seen corresponding path program 1 times [2018-11-07 18:10:43,161 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-07 18:10:43,161 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 18:10:43,162 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-07 18:10:43,162 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 18:10:43,162 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-07 18:10:43,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-07 18:10:43,636 INFO L134 CoverageAnalysis]: Checked inductivity of 368 backedges. 257 proven. 2 refuted. 0 times theorem prover too weak. 109 trivial. 0 not checked. [2018-11-07 18:10:43,636 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-07 18:10:43,636 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-07 18:10:43,637 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 508 with the following transitions: [2018-11-07 18:10:43,638 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], [269], [271], [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], [498], [506], [514], [522], [530], [538], [546], [554], [562], [567], [571], [582], [586], [590], [594], [598], [602], [606], [610], [614], [618], [622], [625], [626], [630], [641], [645], [649], [653], [657], [668], [672], [676], [680], [684], [688], [692], [696], [707], [711], [715], [719], [723], [727], [731], [735], [739], [743], [747], [751], [755], [759], [762], [763], [767], [771], [775], [779], [783], [787], [798], [809], [813], [824], [835], [839], [850], [854], [865], [869], [873], [877], [881], [885], [896], [900], [904], [908], [912], [916], [920], [924], [935], [939], [943], [947], [951], [955], [959], [963], [967], [971], [975], [979], [983], [987], [991], [1002], [1006], [1010], [1014], [1018], [1029], [1033], [1037], [1041], [1045], [1049], [1053], [1057], [1061], [1072], [1076], [1080], [1084], [1088], [1092], [1096], [1100], [1104], [1108], [1112], [1116], [1120], [1124], [1128], [1132], [1136], [1140], [1144], [1148], [1152], [1156], [1160], [1164], [1168], [1172], [1176], [1180], [1191], [1202], [1206], [1210], [1214], [1218], [1229], [1233], [1237], [1241], [1245], [1256], [1260], [1264], [1268], [1272], [1276], [1280], [1284], [1288], [1292], [1296], [1300], [1304], [1308], [1312], [1316], [1320], [1324], [1328], [1332], [1336], [1340], [1344], [1348], [1352], [1356], [1367], [1371], [1375], [1379], [1383], [1394], [1398], [1402], [1406], [1417], [1421], [1425], [1429], [1433], [1437], [1441], [1452], [1456], [1460], [1471], [1475], [1486], [1490], [1494], [1498], [1502], [1506], [1510], [1514], [1518], [1522], [1526], [1530], [1534], [1538], [1542], [1546], [1550], [1554], [1558], [1561], [1635], [1639], [1643], [1649], [1653], [1655], [1662], [1663], [1664], [1666], [1667] [2018-11-07 18:10:43,644 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, IntervalDomain] [2018-11-07 18:10:43,644 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-07 18:10:43,812 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-11-07 18:10:45,816 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-11-07 18:10:45,817 INFO L272 AbstractInterpreter]: Visited 285 different actions 1703 times. Merged at 8 different actions 51 times. Widened at 1 different actions 2 times. Found 10 fixpoints after 3 different actions. Largest state had 24 variables. [2018-11-07 18:10:45,860 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 18:10:45,861 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2018-11-07 18:10:45,862 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-07 18:10:45,862 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-11-07 18:10:45,879 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-07 18:10:45,879 INFO L288 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-11-07 18:10:46,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-07 18:10:46,091 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-07 18:10:46,711 INFO L134 CoverageAnalysis]: Checked inductivity of 368 backedges. 257 proven. 2 refuted. 0 times theorem prover too weak. 109 trivial. 0 not checked. [2018-11-07 18:10:46,711 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-11-07 18:10:47,661 INFO L134 CoverageAnalysis]: Checked inductivity of 368 backedges. 257 proven. 2 refuted. 0 times theorem prover too weak. 109 trivial. 0 not checked. [2018-11-07 18:10:47,693 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2018-11-07 18:10:47,694 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 5, 5] total 10 [2018-11-07 18:10:47,694 INFO L251 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-11-07 18:10:47,695 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-11-07 18:10:47,695 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-11-07 18:10:47,696 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2018-11-07 18:10:47,696 INFO L87 Difference]: Start difference. First operand 6941 states and 8251 transitions. Second operand 9 states. [2018-11-07 18:10:56,898 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-07 18:10:56,898 INFO L93 Difference]: Finished difference Result 15390 states and 19674 transitions. [2018-11-07 18:10:56,899 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2018-11-07 18:10:56,899 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 507 [2018-11-07 18:10:56,900 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-07 18:10:57,330 INFO L225 Difference]: With dead ends: 15390 [2018-11-07 18:10:57,336 INFO L226 Difference]: Without dead ends: 11532 [2018-11-07 18:10:57,370 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 1043 GetRequests, 1021 SyntacticMatches, 2 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 76 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=145, Invalid=317, Unknown=0, NotChecked=0, Total=462 [2018-11-07 18:10:57,379 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11532 states. [2018-11-07 18:10:57,640 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11532 to 11140. [2018-11-07 18:10:57,640 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11140 states. [2018-11-07 18:10:57,665 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11140 states to 11140 states and 13033 transitions. [2018-11-07 18:10:57,666 INFO L78 Accepts]: Start accepts. Automaton has 11140 states and 13033 transitions. Word has length 507 [2018-11-07 18:10:57,673 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-07 18:10:57,673 INFO L480 AbstractCegarLoop]: Abstraction has 11140 states and 13033 transitions. [2018-11-07 18:10:57,674 INFO L481 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-11-07 18:10:57,674 INFO L276 IsEmpty]: Start isEmpty. Operand 11140 states and 13033 transitions. [2018-11-07 18:10:57,701 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 545 [2018-11-07 18:10:57,701 INFO L367 BasicCegarLoop]: Found error trace [2018-11-07 18:10:57,702 INFO L375 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-07 18:10:57,702 INFO L423 AbstractCegarLoop]: === Iteration 6 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-07 18:10:57,703 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 18:10:57,703 INFO L82 PathProgramCache]: Analyzing trace with hash 1413630190, now seen corresponding path program 1 times [2018-11-07 18:10:57,703 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-07 18:10:57,704 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 18:10:57,704 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-07 18:10:57,705 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 18:10:57,705 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-07 18:10:57,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-07 18:10:58,680 INFO L134 CoverageAnalysis]: Checked inductivity of 406 backedges. 92 proven. 4 refuted. 0 times theorem prover too weak. 310 trivial. 0 not checked. [2018-11-07 18:10:58,681 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-07 18:10:58,681 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-07 18:10:58,681 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 545 with the following transitions: [2018-11-07 18:10:58,682 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], [269], [271], [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], [498], [506], [514], [522], [530], [538], [546], [554], [562], [567], [571], [582], [586], [590], [594], [598], [602], [606], [610], [614], [618], [622], [626], [629], [630], [641], [645], [649], [653], [657], [668], [672], [676], [680], [684], [688], [692], [696], [707], [711], [715], [719], [723], [727], [731], [735], [739], [743], [747], [751], [755], [759], [763], [767], [771], [775], [779], [783], [787], [798], [809], [813], [824], [835], [839], [850], [854], [865], [869], [873], [877], [881], [885], [896], [900], [904], [908], [912], [916], [920], [924], [935], [939], [943], [947], [951], [955], [959], [962], [963], [967], [971], [975], [979], [983], [987], [991], [1002], [1006], [1010], [1014], [1018], [1029], [1033], [1037], [1041], [1045], [1049], [1053], [1057], [1061], [1072], [1076], [1080], [1084], [1088], [1092], [1096], [1100], [1104], [1108], [1112], [1116], [1120], [1124], [1128], [1132], [1136], [1140], [1144], [1148], [1152], [1156], [1160], [1164], [1168], [1172], [1176], [1180], [1191], [1202], [1206], [1210], [1214], [1218], [1229], [1233], [1237], [1241], [1245], [1256], [1260], [1264], [1268], [1272], [1276], [1280], [1284], [1288], [1292], [1296], [1300], [1304], [1308], [1312], [1316], [1320], [1324], [1328], [1332], [1336], [1340], [1344], [1348], [1352], [1356], [1367], [1371], [1375], [1379], [1383], [1394], [1398], [1402], [1406], [1417], [1421], [1425], [1429], [1433], [1437], [1441], [1452], [1456], [1460], [1471], [1475], [1486], [1490], [1494], [1498], [1502], [1506], [1510], [1514], [1518], [1522], [1526], [1530], [1534], [1538], [1542], [1546], [1550], [1554], [1558], [1561], [1635], [1639], [1643], [1649], [1653], [1655], [1662], [1663], [1664], [1666], [1667] [2018-11-07 18:10:58,693 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, IntervalDomain] [2018-11-07 18:10:58,693 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-07 18:10:58,773 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-11-07 18:11:00,147 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-11-07 18:11:00,148 INFO L272 AbstractInterpreter]: Visited 284 different actions 851 times. Merged at 7 different actions 21 times. Never widened. Found 3 fixpoints after 2 different actions. Largest state had 24 variables. [2018-11-07 18:11:00,185 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 18:11:00,185 INFO L398 sIntCurrentIteration]: Generating AbsInt predicates [2018-11-07 18:11:00,936 INFO L227 lantSequenceWeakener]: Weakened 541 states. On average, predicates are now at 83.46% of their original sizes. [2018-11-07 18:11:00,937 INFO L413 sIntCurrentIteration]: Unifying AI predicates [2018-11-07 18:11:01,651 INFO L415 sIntCurrentIteration]: We unified 543 AI predicates to 543 [2018-11-07 18:11:01,652 INFO L424 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-11-07 18:11:01,652 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-11-07 18:11:01,653 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [10] imperfect sequences [5] total 13 [2018-11-07 18:11:01,653 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-07 18:11:01,654 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2018-11-07 18:11:01,654 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2018-11-07 18:11:01,654 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2018-11-07 18:11:01,654 INFO L87 Difference]: Start difference. First operand 11140 states and 13033 transitions. Second operand 10 states. [2018-11-07 18:11:23,167 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-07 18:11:23,168 INFO L93 Difference]: Finished difference Result 19300 states and 23239 transitions. [2018-11-07 18:11:23,168 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2018-11-07 18:11:23,168 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 544 [2018-11-07 18:11:23,169 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-07 18:11:23,204 INFO L225 Difference]: With dead ends: 19300 [2018-11-07 18:11:23,204 INFO L226 Difference]: Without dead ends: 12998 [2018-11-07 18:11:23,225 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 550 GetRequests, 535 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 33 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=68, Invalid=204, Unknown=0, NotChecked=0, Total=272 [2018-11-07 18:11:23,235 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12998 states. [2018-11-07 18:11:23,424 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12998 to 12644. [2018-11-07 18:11:23,424 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12644 states. [2018-11-07 18:11:23,449 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12644 states to 12644 states and 14650 transitions. [2018-11-07 18:11:23,449 INFO L78 Accepts]: Start accepts. Automaton has 12644 states and 14650 transitions. Word has length 544 [2018-11-07 18:11:23,451 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-07 18:11:23,451 INFO L480 AbstractCegarLoop]: Abstraction has 12644 states and 14650 transitions. [2018-11-07 18:11:23,451 INFO L481 AbstractCegarLoop]: Interpolant automaton has 10 states. [2018-11-07 18:11:23,451 INFO L276 IsEmpty]: Start isEmpty. Operand 12644 states and 14650 transitions. [2018-11-07 18:11:23,475 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 554 [2018-11-07 18:11:23,475 INFO L367 BasicCegarLoop]: Found error trace [2018-11-07 18:11:23,476 INFO L375 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-07 18:11:23,476 INFO L423 AbstractCegarLoop]: === Iteration 7 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-07 18:11:23,476 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 18:11:23,477 INFO L82 PathProgramCache]: Analyzing trace with hash 552499288, now seen corresponding path program 1 times [2018-11-07 18:11:23,477 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-07 18:11:23,477 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 18:11:23,478 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-07 18:11:23,478 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 18:11:23,478 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-07 18:11:23,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-07 18:11:24,627 INFO L134 CoverageAnalysis]: Checked inductivity of 441 backedges. 96 proven. 0 refuted. 0 times theorem prover too weak. 345 trivial. 0 not checked. [2018-11-07 18:11:24,627 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-07 18:11:24,628 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-11-07 18:11:24,628 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-07 18:11:24,629 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-11-07 18:11:24,629 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-07 18:11:24,629 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-07 18:11:24,629 INFO L87 Difference]: Start difference. First operand 12644 states and 14650 transitions. Second operand 3 states. [2018-11-07 18:11:27,826 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-07 18:11:27,827 INFO L93 Difference]: Finished difference Result 19251 states and 23179 transitions. [2018-11-07 18:11:27,827 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-07 18:11:27,827 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 553 [2018-11-07 18:11:27,828 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-07 18:11:27,865 INFO L225 Difference]: With dead ends: 19251 [2018-11-07 18:11:27,865 INFO L226 Difference]: Without dead ends: 12951 [2018-11-07 18:11:27,887 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-07 18:11:27,898 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12951 states. [2018-11-07 18:11:28,078 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12951 to 12643. [2018-11-07 18:11:28,078 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12643 states. [2018-11-07 18:11:28,102 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12643 states to 12643 states and 14653 transitions. [2018-11-07 18:11:28,102 INFO L78 Accepts]: Start accepts. Automaton has 12643 states and 14653 transitions. Word has length 553 [2018-11-07 18:11:28,103 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-07 18:11:28,104 INFO L480 AbstractCegarLoop]: Abstraction has 12643 states and 14653 transitions. [2018-11-07 18:11:28,105 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-11-07 18:11:28,105 INFO L276 IsEmpty]: Start isEmpty. Operand 12643 states and 14653 transitions. [2018-11-07 18:11:28,127 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 579 [2018-11-07 18:11:28,127 INFO L367 BasicCegarLoop]: Found error trace [2018-11-07 18:11:28,128 INFO L375 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-07 18:11:28,128 INFO L423 AbstractCegarLoop]: === Iteration 8 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-07 18:11:28,128 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 18:11:28,128 INFO L82 PathProgramCache]: Analyzing trace with hash -1084360884, now seen corresponding path program 1 times [2018-11-07 18:11:28,129 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-07 18:11:28,129 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 18:11:28,131 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-07 18:11:28,131 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 18:11:28,131 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-07 18:11:28,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-07 18:11:28,782 INFO L134 CoverageAnalysis]: Checked inductivity of 610 backedges. 362 proven. 2 refuted. 0 times theorem prover too weak. 246 trivial. 0 not checked. [2018-11-07 18:11:28,782 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-07 18:11:28,782 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-07 18:11:28,783 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 579 with the following transitions: [2018-11-07 18:11:28,783 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], [269], [271], [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], [498], [506], [514], [522], [530], [538], [546], [554], [562], [566], [567], [571], [582], [586], [590], [594], [598], [602], [606], [610], [614], [618], [622], [626], [629], [630], [641], [645], [649], [653], [657], [668], [672], [676], [680], [684], [688], [692], [696], [707], [711], [715], [719], [723], [727], [731], [735], [739], [743], [747], [751], [755], [759], [762], [763], [767], [771], [775], [779], [783], [787], [798], [809], [813], [824], [835], [839], [850], [854], [865], [869], [873], [877], [881], [885], [896], [900], [904], [908], [912], [916], [920], [924], [935], [939], [943], [947], [951], [955], [959], [963], [967], [971], [975], [979], [983], [987], [991], [1002], [1006], [1010], [1014], [1018], [1029], [1033], [1037], [1041], [1045], [1049], [1053], [1057], [1061], [1072], [1076], [1080], [1084], [1088], [1092], [1096], [1100], [1104], [1108], [1112], [1116], [1120], [1124], [1128], [1132], [1136], [1140], [1144], [1148], [1152], [1156], [1160], [1164], [1168], [1172], [1176], [1180], [1191], [1202], [1206], [1210], [1214], [1218], [1229], [1233], [1237], [1241], [1245], [1256], [1260], [1264], [1268], [1272], [1276], [1280], [1284], [1288], [1292], [1296], [1300], [1304], [1308], [1312], [1316], [1320], [1324], [1328], [1332], [1336], [1340], [1344], [1348], [1352], [1356], [1367], [1371], [1375], [1379], [1383], [1394], [1398], [1402], [1406], [1417], [1421], [1425], [1429], [1433], [1437], [1441], [1452], [1456], [1460], [1471], [1475], [1486], [1490], [1494], [1498], [1502], [1506], [1510], [1514], [1518], [1522], [1526], [1530], [1534], [1538], [1542], [1546], [1550], [1554], [1558], [1561], [1635], [1639], [1643], [1649], [1653], [1655], [1662], [1663], [1664], [1666], [1667] [2018-11-07 18:11:28,789 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, IntervalDomain] [2018-11-07 18:11:28,789 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-07 18:11:28,868 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-11-07 18:11:31,348 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-11-07 18:11:31,349 INFO L272 AbstractInterpreter]: Visited 286 different actions 1705 times. Merged at 9 different actions 48 times. Widened at 1 different actions 1 times. Found 14 fixpoints after 3 different actions. Largest state had 24 variables. [2018-11-07 18:11:31,355 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 18:11:31,355 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2018-11-07 18:11:31,355 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-07 18:11:31,355 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-11-07 18:11:31,367 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-07 18:11:31,367 INFO L288 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-11-07 18:11:31,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-07 18:11:31,536 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-07 18:11:31,769 INFO L134 CoverageAnalysis]: Checked inductivity of 610 backedges. 362 proven. 2 refuted. 0 times theorem prover too weak. 246 trivial. 0 not checked. [2018-11-07 18:11:31,769 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-11-07 18:11:32,465 INFO L134 CoverageAnalysis]: Checked inductivity of 610 backedges. 362 proven. 2 refuted. 0 times theorem prover too weak. 246 trivial. 0 not checked. [2018-11-07 18:11:32,485 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2018-11-07 18:11:32,486 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 7 [2018-11-07 18:11:32,486 INFO L251 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-11-07 18:11:32,487 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-11-07 18:11:32,488 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-11-07 18:11:32,488 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2018-11-07 18:11:32,488 INFO L87 Difference]: Start difference. First operand 12643 states and 14653 transitions. Second operand 6 states. [2018-11-07 18:11:36,214 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-07 18:11:36,214 INFO L93 Difference]: Finished difference Result 23469 states and 29182 transitions. [2018-11-07 18:11:36,215 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2018-11-07 18:11:36,215 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 578 [2018-11-07 18:11:36,216 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-07 18:11:36,270 INFO L225 Difference]: With dead ends: 23469 [2018-11-07 18:11:36,270 INFO L226 Difference]: Without dead ends: 17170 [2018-11-07 18:11:36,289 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 1169 GetRequests, 1158 SyntacticMatches, 2 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=41, Invalid=69, Unknown=0, NotChecked=0, Total=110 [2018-11-07 18:11:36,302 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17170 states. [2018-11-07 18:11:36,524 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17170 to 15853. [2018-11-07 18:11:36,524 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15853 states. [2018-11-07 18:11:36,554 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15853 states to 15853 states and 18474 transitions. [2018-11-07 18:11:36,555 INFO L78 Accepts]: Start accepts. Automaton has 15853 states and 18474 transitions. Word has length 578 [2018-11-07 18:11:36,556 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-07 18:11:36,556 INFO L480 AbstractCegarLoop]: Abstraction has 15853 states and 18474 transitions. [2018-11-07 18:11:36,556 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-11-07 18:11:36,556 INFO L276 IsEmpty]: Start isEmpty. Operand 15853 states and 18474 transitions. [2018-11-07 18:11:36,579 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 600 [2018-11-07 18:11:36,579 INFO L367 BasicCegarLoop]: Found error trace [2018-11-07 18:11:36,580 INFO L375 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-07 18:11:36,580 INFO L423 AbstractCegarLoop]: === Iteration 9 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-07 18:11:36,580 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 18:11:36,580 INFO L82 PathProgramCache]: Analyzing trace with hash 507913305, now seen corresponding path program 1 times [2018-11-07 18:11:36,581 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-07 18:11:36,581 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 18:11:36,581 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-07 18:11:36,582 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 18:11:36,582 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-07 18:11:36,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-07 18:11:37,461 INFO L134 CoverageAnalysis]: Checked inductivity of 661 backedges. 129 proven. 0 refuted. 0 times theorem prover too weak. 532 trivial. 0 not checked. [2018-11-07 18:11:37,461 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-07 18:11:37,461 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-11-07 18:11:37,462 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-07 18:11:37,463 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-11-07 18:11:37,463 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-11-07 18:11:37,463 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-11-07 18:11:37,463 INFO L87 Difference]: Start difference. First operand 15853 states and 18474 transitions. Second operand 4 states. [2018-11-07 18:11:42,647 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-07 18:11:42,647 INFO L93 Difference]: Finished difference Result 36497 states and 44736 transitions. [2018-11-07 18:11:42,648 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-11-07 18:11:42,648 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 599 [2018-11-07 18:11:42,649 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-07 18:11:42,687 INFO L225 Difference]: With dead ends: 36497 [2018-11-07 18:11:42,687 INFO L226 Difference]: Without dead ends: 16201 [2018-11-07 18:11:42,745 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-11-07 18:11:42,757 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16201 states. [2018-11-07 18:11:42,946 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16201 to 16173. [2018-11-07 18:11:42,946 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16173 states. [2018-11-07 18:11:42,978 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16173 states to 16173 states and 18328 transitions. [2018-11-07 18:11:42,978 INFO L78 Accepts]: Start accepts. Automaton has 16173 states and 18328 transitions. Word has length 599 [2018-11-07 18:11:42,980 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-07 18:11:42,980 INFO L480 AbstractCegarLoop]: Abstraction has 16173 states and 18328 transitions. [2018-11-07 18:11:42,980 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-11-07 18:11:42,980 INFO L276 IsEmpty]: Start isEmpty. Operand 16173 states and 18328 transitions. [2018-11-07 18:11:43,003 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 638 [2018-11-07 18:11:43,003 INFO L367 BasicCegarLoop]: Found error trace [2018-11-07 18:11:43,004 INFO L375 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-07 18:11:43,004 INFO L423 AbstractCegarLoop]: === Iteration 10 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-07 18:11:43,004 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 18:11:43,004 INFO L82 PathProgramCache]: Analyzing trace with hash 801012460, now seen corresponding path program 1 times [2018-11-07 18:11:43,005 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-07 18:11:43,005 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 18:11:43,006 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-07 18:11:43,006 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 18:11:43,006 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-07 18:11:43,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-07 18:11:43,623 INFO L134 CoverageAnalysis]: Checked inductivity of 733 backedges. 445 proven. 2 refuted. 0 times theorem prover too weak. 286 trivial. 0 not checked. [2018-11-07 18:11:43,623 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-07 18:11:43,623 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-07 18:11:43,624 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 638 with the following transitions: [2018-11-07 18:11:43,624 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], [269], [271], [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], [498], [506], [514], [522], [530], [538], [546], [554], [562], [567], [571], [582], [586], [590], [594], [598], [602], [606], [610], [614], [618], [622], [626], [630], [641], [645], [649], [653], [657], [660], [663], [667], [668], [672], [676], [680], [684], [688], [692], [696], [707], [711], [715], [719], [723], [727], [731], [735], [739], [743], [747], [751], [755], [759], [762], [763], [767], [771], [775], [779], [783], [787], [790], [793], [797], [798], [809], [813], [824], [835], [839], [850], [854], [865], [869], [873], [877], [881], [885], [896], [900], [904], [908], [912], [916], [920], [924], [935], [939], [943], [947], [951], [955], [959], [963], [967], [971], [975], [979], [983], [987], [991], [1002], [1006], [1010], [1014], [1018], [1029], [1033], [1037], [1041], [1045], [1049], [1053], [1057], [1061], [1072], [1076], [1080], [1084], [1088], [1092], [1096], [1100], [1104], [1108], [1112], [1116], [1120], [1124], [1128], [1132], [1136], [1140], [1144], [1148], [1152], [1156], [1160], [1164], [1168], [1172], [1176], [1180], [1191], [1202], [1206], [1210], [1214], [1218], [1229], [1233], [1237], [1241], [1245], [1256], [1260], [1264], [1268], [1272], [1276], [1280], [1284], [1288], [1292], [1296], [1300], [1304], [1308], [1312], [1316], [1320], [1324], [1328], [1332], [1336], [1340], [1344], [1348], [1352], [1356], [1367], [1371], [1375], [1379], [1383], [1394], [1398], [1402], [1406], [1417], [1421], [1425], [1429], [1433], [1437], [1441], [1452], [1456], [1460], [1471], [1475], [1486], [1490], [1494], [1498], [1502], [1506], [1510], [1514], [1518], [1522], [1526], [1530], [1534], [1538], [1542], [1546], [1550], [1554], [1558], [1561], [1635], [1639], [1643], [1649], [1653], [1655], [1662], [1663], [1664], [1666], [1667] [2018-11-07 18:11:43,629 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, IntervalDomain] [2018-11-07 18:11:43,629 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-07 18:11:43,883 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-11-07 18:11:44,790 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-11-07 18:11:44,791 INFO L272 AbstractInterpreter]: Visited 285 different actions 1127 times. Merged at 7 different actions 20 times. Never widened. Found 4 fixpoints after 1 different actions. Largest state had 24 variables. [2018-11-07 18:11:44,797 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 18:11:44,797 INFO L398 sIntCurrentIteration]: Generating AbsInt predicates [2018-11-07 18:11:45,360 INFO L227 lantSequenceWeakener]: Weakened 630 states. On average, predicates are now at 80.18% of their original sizes. [2018-11-07 18:11:45,360 INFO L413 sIntCurrentIteration]: Unifying AI predicates [2018-11-07 18:11:45,508 INFO L415 sIntCurrentIteration]: We unified 636 AI predicates to 636 [2018-11-07 18:11:45,508 INFO L424 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-11-07 18:11:45,508 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-11-07 18:11:45,508 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [11] imperfect sequences [6] total 15 [2018-11-07 18:11:45,508 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-07 18:11:45,509 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2018-11-07 18:11:45,509 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2018-11-07 18:11:45,509 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=79, Unknown=0, NotChecked=0, Total=110 [2018-11-07 18:11:45,510 INFO L87 Difference]: Start difference. First operand 16173 states and 18328 transitions. Second operand 11 states. Received shutdown request... [2018-11-07 18:12:10,009 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2018-11-07 18:12:10,009 WARN L549 AbstractCegarLoop]: Verification canceled [2018-11-07 18:12:10,014 WARN L205 ceAbstractionStarter]: Timeout [2018-11-07 18:12:10,014 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 07.11 06:12:10 BoogieIcfgContainer [2018-11-07 18:12:10,014 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-11-07 18:12:10,015 INFO L168 Benchmark]: Toolchain (without parser) took 204879.39 ms. Allocated memory was 1.5 GB in the beginning and 5.2 GB in the end (delta: 3.6 GB). Free memory was 1.4 GB in the beginning and 1.9 GB in the end (delta: -481.3 MB). Peak memory consumption was 3.1 GB. Max. memory is 7.1 GB. [2018-11-07 18:12:10,017 INFO L168 Benchmark]: CDTParser took 0.20 ms. Allocated memory is still 1.5 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-11-07 18:12:10,018 INFO L168 Benchmark]: CACSL2BoogieTranslator took 1322.82 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. [2018-11-07 18:12:10,018 INFO L168 Benchmark]: Boogie Procedure Inliner took 192.18 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 766.0 MB). Free memory was 1.3 GB in the beginning and 2.2 GB in the end (delta: -913.0 MB). Peak memory consumption was 31.3 MB. Max. memory is 7.1 GB. [2018-11-07 18:12:10,019 INFO L168 Benchmark]: Boogie Preprocessor took 175.68 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: 13.5 MB). Peak memory consumption was 13.5 MB. Max. memory is 7.1 GB. [2018-11-07 18:12:10,020 INFO L168 Benchmark]: RCFGBuilder took 6495.18 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: 291.5 MB). Peak memory consumption was 291.5 MB. Max. memory is 7.1 GB. [2018-11-07 18:12:10,022 INFO L168 Benchmark]: TraceAbstraction took 196688.31 ms. Allocated memory was 2.3 GB in the beginning and 5.2 GB in the end (delta: 2.9 GB). Free memory was 1.9 GB in the beginning and 1.9 GB in the end (delta: 20.9 MB). Peak memory consumption was 2.9 GB. Max. memory is 7.1 GB. [2018-11-07 18:12:10,027 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20 ms. Allocated memory is still 1.5 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 1322.82 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 192.18 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 766.0 MB). Free memory was 1.3 GB in the beginning and 2.2 GB in the end (delta: -913.0 MB). Peak memory consumption was 31.3 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 175.68 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: 13.5 MB). Peak memory consumption was 13.5 MB. Max. memory is 7.1 GB. * RCFGBuilder took 6495.18 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: 291.5 MB). Peak memory consumption was 291.5 MB. Max. memory is 7.1 GB. * TraceAbstraction took 196688.31 ms. Allocated memory was 2.3 GB in the beginning and 5.2 GB in the end (delta: 2.9 GB). Free memory was 1.9 GB in the beginning and 1.9 GB in the end (delta: 20.9 MB). Peak memory consumption was 2.9 GB. 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 constructing difference of abstraction (16173states) and FLOYD_HOARE automaton (currently 21 states, 11 states before enhancement),while ReachableStatesComputation was computing reachable states (18876 states constructedinput type IntersectNwa). - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 438 locations, 1 error locations. TIMEOUT Result, 196.6s OverallTime, 10 OverallIterations, 5 TraceHistogramMax, 163.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 3633 SDtfs, 18674 SDslu, 3484 SDs, 0 SdLazy, 29554 SolverSat, 4558 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 69.3s Time, PredicateUnifierStatistics: 8 DeclaredPredicates, 4130 GetRequests, 3919 SyntacticMatches, 94 SemanticMatches, 117 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1248 ImplicationChecksByTransitivity, 9.8s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=16173occurred in iteration=9, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 11.5s AbstIntTime, 6 AbstIntIterations, 4 AbstIntStrong, 0.9977454490635298 AbsIntWeakeningRatio, 0.06989247311827956 AbsIntAvgWeakeningVarsNumRemoved, 17.954301075268816 AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 1.7s AutomataMinimizationTime, 9 MinimizatonAttempts, 3415 StatesRemovedByMinimization, 9 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.2s SsaConstructionTime, 0.9s SatisfiabilityAnalysisTime, 6.0s InterpolantComputationTime, 5330 NumberOfCodeBlocks, 5330 NumberOfCodeBlocksAsserted, 12 NumberOfCheckSat, 6401 ConstructedInterpolants, 0 QuantifiedInterpolants, 6418869 SizeOfPredicates, 0 NumberOfNonLiveVariables, 1569 ConjunctsInSsa, 8 ConjunctsInUnsatCore, 14 InterpolantComputations, 4 PerfectInterpolantSequences, 5564/5663 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Completed graceful shutdown