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_label13_true-unreach-call.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-63daa26 [2018-11-12 19:10:58,169 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-12 19:10:58,172 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-12 19:10:58,189 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-12 19:10:58,189 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-12 19:10:58,190 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-12 19:10:58,192 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-12 19:10:58,194 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-12 19:10:58,196 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-12 19:10:58,198 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-12 19:10:58,199 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-12 19:10:58,199 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-12 19:10:58,203 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-12 19:10:58,204 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-12 19:10:58,208 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-12 19:10:58,209 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-12 19:10:58,209 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-12 19:10:58,212 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-12 19:10:58,221 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-12 19:10:58,223 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-12 19:10:58,227 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-12 19:10:58,228 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-12 19:10:58,232 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-12 19:10:58,232 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-12 19:10:58,232 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-12 19:10:58,233 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-12 19:10:58,234 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-12 19:10:58,235 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-12 19:10:58,236 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-12 19:10:58,237 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-12 19:10:58,237 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-12 19:10:58,238 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-12 19:10:58,238 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-12 19:10:58,238 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-12 19:10:58,239 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-12 19:10:58,240 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-12 19:10:58,240 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 [2018-11-12 19:10:58,261 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-12 19:10:58,261 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-12 19:10:58,262 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-12 19:10:58,262 INFO L133 SettingsManager]: * User list type=DISABLED [2018-11-12 19:10:58,262 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-11-12 19:10:58,264 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-11-12 19:10:58,264 INFO L133 SettingsManager]: * Maximum recursion depth of evaluation operations=6 [2018-11-12 19:10:58,264 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-11-12 19:10:58,264 INFO L133 SettingsManager]: * Octagon Domain=false [2018-11-12 19:10:58,264 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-11-12 19:10:58,265 INFO L133 SettingsManager]: * Log string format=TERM [2018-11-12 19:10:58,265 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-11-12 19:10:58,265 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-11-12 19:10:58,266 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-12 19:10:58,266 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-12 19:10:58,267 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-12 19:10:58,267 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-12 19:10:58,267 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-12 19:10:58,267 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-12 19:10:58,267 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-12 19:10:58,269 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-12 19:10:58,269 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-12 19:10:58,269 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-12 19:10:58,269 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-12 19:10:58,270 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-12 19:10:58,270 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-12 19:10:58,270 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-12 19:10:58,270 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-12 19:10:58,270 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-12 19:10:58,271 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-11-12 19:10:58,271 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-12 19:10:58,271 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-11-12 19:10:58,271 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-11-12 19:10:58,272 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-11-12 19:10:58,272 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-11-12 19:10:58,331 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-12 19:10:58,348 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-12 19:10:58,352 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-12 19:10:58,353 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-12 19:10:58,354 INFO L276 PluginConnector]: CDTParser initialized [2018-11-12 19:10:58,354 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem15_label13_true-unreach-call.c [2018-11-12 19:10:58,419 INFO L218 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5c8cf35b1/85931b36765645728dc8701db521d7c0/FLAG082b013d1 [2018-11-12 19:10:59,085 INFO L298 CDTParser]: Found 1 translation units. [2018-11-12 19:10:59,086 INFO L158 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem15_label13_true-unreach-call.c [2018-11-12 19:10:59,105 INFO L346 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5c8cf35b1/85931b36765645728dc8701db521d7c0/FLAG082b013d1 [2018-11-12 19:10:59,125 INFO L354 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5c8cf35b1/85931b36765645728dc8701db521d7c0 [2018-11-12 19:10:59,136 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-12 19:10:59,138 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-11-12 19:10:59,139 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-12 19:10:59,139 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-12 19:10:59,145 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-12 19:10:59,146 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 07:10:59" (1/1) ... [2018-11-12 19:10:59,149 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4fd3c464 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 07:10:59, skipping insertion in model container [2018-11-12 19:10:59,150 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 07:10:59" (1/1) ... [2018-11-12 19:10:59,160 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-12 19:10:59,253 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-11-12 19:10:59,994 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-12 19:10:59,999 INFO L189 MainTranslator]: Completed pre-run [2018-11-12 19:11:00,322 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-12 19:11:00,350 INFO L193 MainTranslator]: Completed translation [2018-11-12 19:11:00,350 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 07:11:00 WrapperNode [2018-11-12 19:11:00,350 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-12 19:11:00,351 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-12 19:11:00,352 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-12 19:11:00,352 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-12 19:11:00,507 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 07:11:00" (1/1) ... [2018-11-12 19:11:00,546 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 07:11:00" (1/1) ... [2018-11-12 19:11:00,558 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-12 19:11:00,558 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-12 19:11:00,560 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-12 19:11:00,560 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-12 19:11:00,572 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 07:11:00" (1/1) ... [2018-11-12 19:11:00,572 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 07:11:00" (1/1) ... [2018-11-12 19:11:00,588 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 07:11:00" (1/1) ... [2018-11-12 19:11:00,588 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 07:11:00" (1/1) ... [2018-11-12 19:11:00,658 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 07:11:00" (1/1) ... [2018-11-12 19:11:00,675 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 07:11:00" (1/1) ... [2018-11-12 19:11:00,707 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 07:11:00" (1/1) ... [2018-11-12 19:11:00,736 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-12 19:11:00,737 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-12 19:11:00,737 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-12 19:11:00,738 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-12 19:11:00,739 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 07:11:00" (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 [2018-11-12 19:11:00,811 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2018-11-12 19:11:00,811 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-12 19:11:00,811 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-12 19:11:00,811 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output2 [2018-11-12 19:11:00,812 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output2 [2018-11-12 19:11:00,812 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2018-11-12 19:11:00,812 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2018-11-12 19:11:00,812 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-12 19:11:00,812 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-12 19:11:00,813 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-12 19:11:00,813 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-12 19:11:07,408 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-12 19:11:07,409 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 07:11:07 BoogieIcfgContainer [2018-11-12 19:11:07,409 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-12 19:11:07,410 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-12 19:11:07,411 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-12 19:11:07,416 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-12 19:11:07,417 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.11 07:10:59" (1/3) ... [2018-11-12 19:11:07,418 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@621e72c3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 07:11:07, skipping insertion in model container [2018-11-12 19:11:07,418 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 07:11:00" (2/3) ... [2018-11-12 19:11:07,418 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@621e72c3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 07:11:07, skipping insertion in model container [2018-11-12 19:11:07,419 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 07:11:07" (3/3) ... [2018-11-12 19:11:07,420 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem15_label13_true-unreach-call.c [2018-11-12 19:11:07,431 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-12 19:11:07,441 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-11-12 19:11:07,459 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-11-12 19:11:07,509 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-12 19:11:07,509 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-12 19:11:07,509 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-12 19:11:07,509 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-12 19:11:07,510 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-12 19:11:07,510 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-12 19:11:07,510 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-12 19:11:07,510 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-12 19:11:07,546 INFO L276 IsEmpty]: Start isEmpty. Operand 438 states. [2018-11-12 19:11:07,558 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2018-11-12 19:11:07,558 INFO L367 BasicCegarLoop]: Found error trace [2018-11-12 19:11:07,559 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-12 19:11:07,562 INFO L423 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-12 19:11:07,569 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-12 19:11:07,569 INFO L82 PathProgramCache]: Analyzing trace with hash -1672823047, now seen corresponding path program 1 times [2018-11-12 19:11:07,572 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-12 19:11:07,622 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-12 19:11:07,622 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-12 19:11:07,622 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-12 19:11:07,622 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-12 19:11:07,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-12 19:11:08,084 WARN L179 SmtUtils]: Spent 150.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 4 [2018-11-12 19:11:08,181 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-12 19:11:08,183 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-12 19:11:08,184 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-11-12 19:11:08,184 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-12 19:11:08,190 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-11-12 19:11:08,206 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-12 19:11:08,207 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-12 19:11:08,210 INFO L87 Difference]: Start difference. First operand 438 states. Second operand 3 states. [2018-11-12 19:11:12,100 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-12 19:11:12,101 INFO L93 Difference]: Finished difference Result 1192 states and 2147 transitions. [2018-11-12 19:11:12,102 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-12 19:11:12,103 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 55 [2018-11-12 19:11:12,104 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-12 19:11:12,129 INFO L225 Difference]: With dead ends: 1192 [2018-11-12 19:11:12,129 INFO L226 Difference]: Without dead ends: 752 [2018-11-12 19:11:12,142 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-12 19:11:12,166 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 752 states. [2018-11-12 19:11:12,248 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 752 to 752. [2018-11-12 19:11:12,249 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 752 states. [2018-11-12 19:11:12,256 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 752 states to 752 states and 1322 transitions. [2018-11-12 19:11:12,258 INFO L78 Accepts]: Start accepts. Automaton has 752 states and 1322 transitions. Word has length 55 [2018-11-12 19:11:12,259 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-12 19:11:12,259 INFO L480 AbstractCegarLoop]: Abstraction has 752 states and 1322 transitions. [2018-11-12 19:11:12,259 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-11-12 19:11:12,260 INFO L276 IsEmpty]: Start isEmpty. Operand 752 states and 1322 transitions. [2018-11-12 19:11:12,268 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 137 [2018-11-12 19:11:12,269 INFO L367 BasicCegarLoop]: Found error trace [2018-11-12 19:11:12,269 INFO L375 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-12 19:11:12,270 INFO L423 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-12 19:11:12,270 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-12 19:11:12,270 INFO L82 PathProgramCache]: Analyzing trace with hash 1273885140, now seen corresponding path program 1 times [2018-11-12 19:11:12,271 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-12 19:11:12,272 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-12 19:11:12,272 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-12 19:11:12,272 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-12 19:11:12,272 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-12 19:11:12,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-12 19:11:12,805 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 4 proven. 44 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-12 19:11:12,805 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-12 19:11:12,805 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-12 19:11:12,807 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 137 with the following transitions: [2018-11-12 19:11:12,809 INFO L202 CegarAbsIntRunner]: [0], [1], [74], [81], [89], [97], [105], [113], [121], [129], [137], [145], [153], [161], [169], [177], [185], [193], [201], [209], [217], [225], [233], [241], [249], [257], [265], [273], [281], [289], [297], [305], [313], [321], [329], [337], [345], [353], [361], [369], [377], [385], [393], [401], [409], [413], [415], [418], [426], [434], [442], [450], [458], [466], [474], [482], [490], [498], [506], [514], [522], [530], [538], [546], [554], [562], [567], [571], [582], [586], [590], [594], [598], [602], [606], [610], [614], [617], [1635], [1639], [1643], [1649], [1653], [1655], [1662], [1663], [1664], [1666], [1667] [2018-11-12 19:11:12,860 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, IntervalDomain] [2018-11-12 19:11:12,861 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-12 19:11:13,376 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-11-12 19:11:13,378 INFO L272 AbstractInterpreter]: Visited 85 different actions 85 times. Never merged. Never widened. Performed 754 root evaluator evaluations with a maximum evaluation depth of 4. Performed 754 inverse root evaluator evaluations with a maximum inverse evaluation depth of 4. Never found a fixpoint. Largest state had 24 variables. [2018-11-12 19:11:13,419 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-12 19:11:13,419 INFO L398 sIntCurrentIteration]: Generating AbsInt predicates [2018-11-12 19:11:13,841 INFO L227 lantSequenceWeakener]: Weakened 130 states. On average, predicates are now at 78.5% of their original sizes. [2018-11-12 19:11:13,841 INFO L413 sIntCurrentIteration]: Unifying AI predicates [2018-11-12 19:11:14,090 INFO L415 sIntCurrentIteration]: We unified 135 AI predicates to 135 [2018-11-12 19:11:14,090 INFO L424 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-11-12 19:11:14,093 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-11-12 19:11:14,093 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [7] total 12 [2018-11-12 19:11:14,094 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-12 19:11:14,096 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-11-12 19:11:14,096 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-11-12 19:11:14,096 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2018-11-12 19:11:14,097 INFO L87 Difference]: Start difference. First operand 752 states and 1322 transitions. Second operand 7 states. [2018-11-12 19:11:17,185 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-11-12 19:11:43,979 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-12 19:11:43,979 INFO L93 Difference]: Finished difference Result 1808 states and 3199 transitions. [2018-11-12 19:11:43,979 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-11-12 19:11:43,980 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 136 [2018-11-12 19:11:43,980 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-12 19:11:43,987 INFO L225 Difference]: With dead ends: 1808 [2018-11-12 19:11:43,987 INFO L226 Difference]: Without dead ends: 1062 [2018-11-12 19:11:43,991 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 136 GetRequests, 130 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=21, Invalid=35, Unknown=0, NotChecked=0, Total=56 [2018-11-12 19:11:43,993 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1062 states. [2018-11-12 19:11:44,029 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1062 to 1060. [2018-11-12 19:11:44,029 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1060 states. [2018-11-12 19:11:44,035 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1060 states to 1060 states and 1637 transitions. [2018-11-12 19:11:44,036 INFO L78 Accepts]: Start accepts. Automaton has 1060 states and 1637 transitions. Word has length 136 [2018-11-12 19:11:44,036 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-12 19:11:44,037 INFO L480 AbstractCegarLoop]: Abstraction has 1060 states and 1637 transitions. [2018-11-12 19:11:44,037 INFO L481 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-11-12 19:11:44,037 INFO L276 IsEmpty]: Start isEmpty. Operand 1060 states and 1637 transitions. [2018-11-12 19:11:44,044 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 233 [2018-11-12 19:11:44,044 INFO L367 BasicCegarLoop]: Found error trace [2018-11-12 19:11:44,045 INFO L375 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-12 19:11:44,045 INFO L423 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-12 19:11:44,045 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-12 19:11:44,046 INFO L82 PathProgramCache]: Analyzing trace with hash 1916304126, now seen corresponding path program 1 times [2018-11-12 19:11:44,046 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-12 19:11:44,047 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-12 19:11:44,047 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-12 19:11:44,047 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-12 19:11:44,047 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-12 19:11:44,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-12 19:11:45,200 WARN L179 SmtUtils]: Spent 478.00 ms on a formula simplification. DAG size of input: 36 DAG size of output: 35 [2018-11-12 19:11:45,489 INFO L134 CoverageAnalysis]: Checked inductivity of 177 backedges. 48 proven. 122 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2018-11-12 19:11:45,489 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-12 19:11:45,489 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-12 19:11:45,490 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 233 with the following transitions: [2018-11-12 19:11:45,490 INFO L202 CegarAbsIntRunner]: [0], [1], [74], [81], [89], [97], [105], [113], [121], [129], [137], [145], [153], [161], [169], [177], [185], [193], [201], [209], [217], [225], [233], [241], [249], [257], [265], [273], [281], [289], [297], [305], [313], [321], [329], [337], [345], [353], [361], [369], [377], [385], [393], [401], [409], [413], [415], [418], [426], [434], [442], [450], [458], [466], [474], [482], [490], [498], [506], [514], [522], [530], [538], [546], [554], [562], [567], [571], [582], [586], [590], [594], [598], [602], [606], [610], [614], [617], [618], [622], [626], [630], [641], [645], [649], [653], [657], [668], [672], [676], [680], [684], [688], [691], [1635], [1639], [1643], [1649], [1653], [1655], [1662], [1663], [1664], [1666], [1667] [2018-11-12 19:11:45,495 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, IntervalDomain] [2018-11-12 19:11:45,496 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-12 19:11:45,573 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-11-12 19:11:46,505 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-11-12 19:11:46,506 INFO L272 AbstractInterpreter]: Visited 104 different actions 692 times. Merged at 5 different actions 30 times. Widened at 1 different actions 2 times. Performed 11908 root evaluator evaluations with a maximum evaluation depth of 6. Performed 11908 inverse root evaluator evaluations with a maximum inverse evaluation depth of 6. Found 1 fixpoints after 1 different actions. Largest state had 24 variables. [2018-11-12 19:11:46,533 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-12 19:11:46,533 INFO L398 sIntCurrentIteration]: Generating AbsInt predicates [2018-11-12 19:11:47,197 INFO L227 lantSequenceWeakener]: Weakened 38 states. On average, predicates are now at 77.75% of their original sizes. [2018-11-12 19:11:47,198 INFO L413 sIntCurrentIteration]: Unifying AI predicates [2018-11-12 19:11:50,215 INFO L415 sIntCurrentIteration]: We unified 231 AI predicates to 231 [2018-11-12 19:11:50,215 INFO L424 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-11-12 19:11:50,216 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-11-12 19:11:50,216 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [15] imperfect sequences [13] total 26 [2018-11-12 19:11:50,216 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-12 19:11:50,217 INFO L459 AbstractCegarLoop]: Interpolant automaton has 15 states [2018-11-12 19:11:50,218 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2018-11-12 19:11:50,218 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=152, Unknown=0, NotChecked=0, Total=210 [2018-11-12 19:11:50,219 INFO L87 Difference]: Start difference. First operand 1060 states and 1637 transitions. Second operand 15 states. [2018-11-12 19:12:21,533 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-12 19:12:21,533 INFO L93 Difference]: Finished difference Result 3274 states and 5396 transitions. [2018-11-12 19:12:21,534 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2018-11-12 19:12:21,534 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 232 [2018-11-12 19:12:21,535 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-12 19:12:21,547 INFO L225 Difference]: With dead ends: 3274 [2018-11-12 19:12:21,547 INFO L226 Difference]: Without dead ends: 2528 [2018-11-12 19:12:21,551 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 237 GetRequests, 133 SyntacticMatches, 85 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 745 ImplicationChecksByTransitivity, 3.0s TimeCoverageRelationStatistics Valid=108, Invalid=312, Unknown=0, NotChecked=0, Total=420 [2018-11-12 19:12:21,554 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2528 states. [2018-11-12 19:12:21,604 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2528 to 1998. [2018-11-12 19:12:21,604 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1998 states. [2018-11-12 19:12:21,611 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1998 states to 1998 states and 2617 transitions. [2018-11-12 19:12:21,612 INFO L78 Accepts]: Start accepts. Automaton has 1998 states and 2617 transitions. Word has length 232 [2018-11-12 19:12:21,612 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-12 19:12:21,613 INFO L480 AbstractCegarLoop]: Abstraction has 1998 states and 2617 transitions. [2018-11-12 19:12:21,613 INFO L481 AbstractCegarLoop]: Interpolant automaton has 15 states. [2018-11-12 19:12:21,613 INFO L276 IsEmpty]: Start isEmpty. Operand 1998 states and 2617 transitions. [2018-11-12 19:12:21,623 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 412 [2018-11-12 19:12:21,623 INFO L367 BasicCegarLoop]: Found error trace [2018-11-12 19:12:21,623 INFO L375 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-12 19:12:21,624 INFO L423 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-12 19:12:21,624 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-12 19:12:21,624 INFO L82 PathProgramCache]: Analyzing trace with hash -456190975, now seen corresponding path program 1 times [2018-11-12 19:12:21,624 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-12 19:12:21,625 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-12 19:12:21,625 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-12 19:12:21,626 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-12 19:12:21,626 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-12 19:12:21,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-12 19:12:22,719 INFO L134 CoverageAnalysis]: Checked inductivity of 177 backedges. 9 proven. 90 refuted. 0 times theorem prover too weak. 78 trivial. 0 not checked. [2018-11-12 19:12:22,719 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-12 19:12:22,719 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-12 19:12:22,720 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 412 with the following transitions: [2018-11-12 19:12:22,721 INFO L202 CegarAbsIntRunner]: [0], [1], [74], [81], [89], [97], [105], [113], [121], [129], [137], [145], [153], [161], [169], [177], [185], [193], [201], [209], [217], [225], [233], [241], [249], [257], [265], [273], [281], [289], [297], [305], [313], [321], [329], [337], [345], [353], [361], [369], [377], [385], [393], [401], [409], [413], [415], [418], [426], [434], [442], [450], [458], [466], [474], [482], [490], [498], [506], [514], [522], [530], [538], [546], [554], [562], [567], [571], [582], [586], [590], [594], [598], [602], [606], [610], [614], [617], [618], [622], [626], [630], [641], [645], [649], [653], [657], [668], [672], [676], [680], [684], [688], [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] [2018-11-12 19:12:22,737 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, IntervalDomain] [2018-11-12 19:12:22,738 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-12 19:12:23,132 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-11-12 19:12:23,508 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-11-12 19:12:23,508 INFO L272 AbstractInterpreter]: Visited 283 different actions 562 times. Merged at 5 different actions 7 times. Never widened. Performed 11230 root evaluator evaluations with a maximum evaluation depth of 6. Performed 11230 inverse root evaluator evaluations with a maximum inverse evaluation depth of 6. Found 1 fixpoints after 1 different actions. Largest state had 24 variables. [2018-11-12 19:12:23,536 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-12 19:12:23,536 INFO L398 sIntCurrentIteration]: Generating AbsInt predicates [2018-11-12 19:12:24,204 INFO L227 lantSequenceWeakener]: Weakened 75 states. On average, predicates are now at 81.56% of their original sizes. [2018-11-12 19:12:24,204 INFO L413 sIntCurrentIteration]: Unifying AI predicates [2018-11-12 19:12:24,587 INFO L415 sIntCurrentIteration]: We unified 410 AI predicates to 410 [2018-11-12 19:12:24,587 INFO L424 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-11-12 19:12:24,588 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-11-12 19:12:24,588 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [20] imperfect sequences [7] total 25 [2018-11-12 19:12:24,588 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-12 19:12:24,589 INFO L459 AbstractCegarLoop]: Interpolant automaton has 20 states [2018-11-12 19:12:24,589 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2018-11-12 19:12:24,590 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=83, Invalid=297, Unknown=0, NotChecked=0, Total=380 [2018-11-12 19:12:24,590 INFO L87 Difference]: Start difference. First operand 1998 states and 2617 transitions. Second operand 20 states. [2018-11-12 19:13:08,775 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-12 19:13:08,775 INFO L93 Difference]: Finished difference Result 3667 states and 5610 transitions. [2018-11-12 19:13:08,775 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2018-11-12 19:13:08,775 INFO L78 Accepts]: Start accepts. Automaton has 20 states. Word has length 411 [2018-11-12 19:13:08,777 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-12 19:13:08,793 INFO L225 Difference]: With dead ends: 3667 [2018-11-12 19:13:08,793 INFO L226 Difference]: Without dead ends: 2921 [2018-11-12 19:13:08,799 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 427 GetRequests, 392 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 284 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=254, Invalid=1078, Unknown=0, NotChecked=0, Total=1332 [2018-11-12 19:13:08,802 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2921 states. [2018-11-12 19:13:08,865 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2921 to 2914. [2018-11-12 19:13:08,865 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2914 states. [2018-11-12 19:13:08,874 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2914 states to 2914 states and 3599 transitions. [2018-11-12 19:13:08,875 INFO L78 Accepts]: Start accepts. Automaton has 2914 states and 3599 transitions. Word has length 411 [2018-11-12 19:13:08,876 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-12 19:13:08,876 INFO L480 AbstractCegarLoop]: Abstraction has 2914 states and 3599 transitions. [2018-11-12 19:13:08,876 INFO L481 AbstractCegarLoop]: Interpolant automaton has 20 states. [2018-11-12 19:13:08,876 INFO L276 IsEmpty]: Start isEmpty. Operand 2914 states and 3599 transitions. [2018-11-12 19:13:08,889 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 482 [2018-11-12 19:13:08,890 INFO L367 BasicCegarLoop]: Found error trace [2018-11-12 19:13:08,890 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, 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, 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, 1, 1, 1] [2018-11-12 19:13:08,890 INFO L423 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-12 19:13:08,891 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-12 19:13:08,891 INFO L82 PathProgramCache]: Analyzing trace with hash -1172935315, now seen corresponding path program 1 times [2018-11-12 19:13:08,891 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-12 19:13:08,892 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-12 19:13:08,892 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-12 19:13:08,892 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-12 19:13:08,892 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-12 19:13:08,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-12 19:13:09,457 WARN L179 SmtUtils]: Spent 150.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 4 [2018-11-12 19:13:10,255 WARN L179 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 32 DAG size of output: 31 [2018-11-12 19:13:10,700 INFO L134 CoverageAnalysis]: Checked inductivity of 365 backedges. 165 proven. 193 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2018-11-12 19:13:10,701 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-12 19:13:10,701 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-12 19:13:10,701 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 482 with the following transitions: [2018-11-12 19:13:10,702 INFO L202 CegarAbsIntRunner]: [0], [1], [74], [81], [89], [97], [105], [113], [121], [129], [137], [145], [153], [161], [169], [177], [185], [193], [201], [209], [217], [225], [233], [241], [249], [257], [265], [273], [281], [289], [297], [305], [313], [321], [329], [337], [345], [353], [361], [369], [377], [385], [393], [401], [409], [413], [415], [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], [617], [618], [622], [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], [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] [2018-11-12 19:13:10,710 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, IntervalDomain] [2018-11-12 19:13:10,710 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-12 19:13:10,865 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-11-12 19:13:11,389 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-11-12 19:13:11,389 INFO L272 AbstractInterpreter]: Visited 284 different actions 851 times. Merged at 7 different actions 21 times. Never widened. Performed 12898 root evaluator evaluations with a maximum evaluation depth of 6. Performed 12898 inverse root evaluator evaluations with a maximum inverse evaluation depth of 6. Found 3 fixpoints after 2 different actions. Largest state had 24 variables. [2018-11-12 19:13:11,395 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-12 19:13:11,395 INFO L398 sIntCurrentIteration]: Generating AbsInt predicates [2018-11-12 19:13:12,320 INFO L227 lantSequenceWeakener]: Weakened 478 states. On average, predicates are now at 80.38% of their original sizes. [2018-11-12 19:13:12,320 INFO L413 sIntCurrentIteration]: Unifying AI predicates [2018-11-12 19:13:12,455 INFO L415 sIntCurrentIteration]: We unified 480 AI predicates to 480 [2018-11-12 19:13:12,455 INFO L424 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-11-12 19:13:12,455 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-11-12 19:13:12,455 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [10] imperfect sequences [13] total 21 [2018-11-12 19:13:12,456 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-12 19:13:12,457 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2018-11-12 19:13:12,457 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2018-11-12 19:13:12,457 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2018-11-12 19:13:12,457 INFO L87 Difference]: Start difference. First operand 2914 states and 3599 transitions. Second operand 10 states. [2018-11-12 19:13:37,257 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-12 19:13:37,257 INFO L93 Difference]: Finished difference Result 4318 states and 5848 transitions. [2018-11-12 19:13:37,258 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2018-11-12 19:13:37,258 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 481 [2018-11-12 19:13:37,259 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-12 19:13:37,273 INFO L225 Difference]: With dead ends: 4318 [2018-11-12 19:13:37,273 INFO L226 Difference]: Without dead ends: 3572 [2018-11-12 19:13:37,277 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 487 GetRequests, 472 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 33 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=68, Invalid=204, Unknown=0, NotChecked=0, Total=272 [2018-11-12 19:13:37,281 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3572 states. [2018-11-12 19:13:37,354 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3572 to 3568. [2018-11-12 19:13:37,355 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3568 states. [2018-11-12 19:13:37,366 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3568 states to 3568 states and 4320 transitions. [2018-11-12 19:13:37,366 INFO L78 Accepts]: Start accepts. Automaton has 3568 states and 4320 transitions. Word has length 481 [2018-11-12 19:13:37,367 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-12 19:13:37,367 INFO L480 AbstractCegarLoop]: Abstraction has 3568 states and 4320 transitions. [2018-11-12 19:13:37,368 INFO L481 AbstractCegarLoop]: Interpolant automaton has 10 states. [2018-11-12 19:13:37,368 INFO L276 IsEmpty]: Start isEmpty. Operand 3568 states and 4320 transitions. [2018-11-12 19:13:37,376 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 524 [2018-11-12 19:13:37,377 INFO L367 BasicCegarLoop]: Found error trace [2018-11-12 19:13:37,377 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, 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, 2, 2, 2, 2, 2, 2, 2, 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] [2018-11-12 19:13:37,378 INFO L423 AbstractCegarLoop]: === Iteration 6 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-12 19:13:37,378 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-12 19:13:37,378 INFO L82 PathProgramCache]: Analyzing trace with hash -2066472572, now seen corresponding path program 1 times [2018-11-12 19:13:37,378 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-12 19:13:37,379 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-12 19:13:37,380 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-12 19:13:37,380 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-12 19:13:37,380 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-12 19:13:37,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-12 19:13:39,226 INFO L134 CoverageAnalysis]: Checked inductivity of 418 backedges. 282 proven. 22 refuted. 0 times theorem prover too weak. 114 trivial. 0 not checked. [2018-11-12 19:13:39,226 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-12 19:13:39,227 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-12 19:13:39,227 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 524 with the following transitions: [2018-11-12 19:13:39,227 INFO L202 CegarAbsIntRunner]: [0], [1], [74], [81], [89], [97], [105], [113], [121], [129], [137], [145], [153], [161], [169], [177], [185], [193], [201], [209], [217], [225], [233], [241], [249], [257], [265], [273], [281], [289], [297], [305], [313], [321], [329], [337], [345], [353], [361], [369], [377], [385], [393], [401], [409], [413], [415], [418], [426], [434], [442], [450], [458], [466], [474], [482], [490], [498], [506], [514], [522], [530], [538], [546], [554], [562], [567], [571], [582], [586], [590], [594], [598], [602], [606], [610], [614], [617], [618], [622], [626], [630], [641], [645], [649], [653], [657], [668], [672], [676], [680], [684], [688], [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] [2018-11-12 19:13:39,232 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, IntervalDomain] [2018-11-12 19:13:39,233 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-12 19:13:39,412 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-11-12 19:13:40,586 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-11-12 19:13:40,586 INFO L272 AbstractInterpreter]: Visited 284 different actions 1123 times. Merged at 7 different actions 20 times. Never widened. Performed 17923 root evaluator evaluations with a maximum evaluation depth of 6. Performed 17923 inverse root evaluator evaluations with a maximum inverse evaluation depth of 6. Found 4 fixpoints after 1 different actions. Largest state had 24 variables. [2018-11-12 19:13:40,594 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-12 19:13:40,594 INFO L398 sIntCurrentIteration]: Generating AbsInt predicates [2018-11-12 19:13:41,106 INFO L227 lantSequenceWeakener]: Weakened 520 states. On average, predicates are now at 80.28% of their original sizes. [2018-11-12 19:13:41,106 INFO L413 sIntCurrentIteration]: Unifying AI predicates [2018-11-12 19:13:41,210 INFO L415 sIntCurrentIteration]: We unified 522 AI predicates to 522 [2018-11-12 19:13:41,210 INFO L424 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-11-12 19:13:41,211 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-11-12 19:13:41,211 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [11] imperfect sequences [10] total 19 [2018-11-12 19:13:41,211 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-12 19:13:41,212 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2018-11-12 19:13:41,212 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2018-11-12 19:13:41,212 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=79, Unknown=0, NotChecked=0, Total=110 [2018-11-12 19:13:41,213 INFO L87 Difference]: Start difference. First operand 3568 states and 4320 transitions. Second operand 11 states. [2018-11-12 19:14:13,954 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-12 19:14:13,955 INFO L93 Difference]: Finished difference Result 5953 states and 7910 transitions. [2018-11-12 19:14:13,955 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2018-11-12 19:14:13,955 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 523 [2018-11-12 19:14:13,956 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-12 19:14:13,972 INFO L225 Difference]: With dead ends: 5953 [2018-11-12 19:14:13,972 INFO L226 Difference]: Without dead ends: 4251 [2018-11-12 19:14:13,979 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 534 GetRequests, 513 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 82 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=122, Invalid=384, Unknown=0, NotChecked=0, Total=506 [2018-11-12 19:14:13,983 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4251 states. [2018-11-12 19:14:14,079 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4251 to 4229. [2018-11-12 19:14:14,080 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4229 states. [2018-11-12 19:14:14,091 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4229 states to 4229 states and 5238 transitions. [2018-11-12 19:14:14,091 INFO L78 Accepts]: Start accepts. Automaton has 4229 states and 5238 transitions. Word has length 523 [2018-11-12 19:14:14,092 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-12 19:14:14,092 INFO L480 AbstractCegarLoop]: Abstraction has 4229 states and 5238 transitions. [2018-11-12 19:14:14,093 INFO L481 AbstractCegarLoop]: Interpolant automaton has 11 states. [2018-11-12 19:14:14,093 INFO L276 IsEmpty]: Start isEmpty. Operand 4229 states and 5238 transitions. [2018-11-12 19:14:14,104 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 525 [2018-11-12 19:14:14,104 INFO L367 BasicCegarLoop]: Found error trace [2018-11-12 19:14:14,105 INFO L375 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2018-11-12 19:14:14,105 INFO L423 AbstractCegarLoop]: === Iteration 7 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-12 19:14:14,106 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-12 19:14:14,106 INFO L82 PathProgramCache]: Analyzing trace with hash 460886185, now seen corresponding path program 1 times [2018-11-12 19:14:14,106 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-12 19:14:14,108 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-12 19:14:14,108 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-12 19:14:14,109 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-12 19:14:14,109 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-12 19:14:14,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-12 19:14:14,749 INFO L134 CoverageAnalysis]: Checked inductivity of 290 backedges. 0 proven. 88 refuted. 0 times theorem prover too weak. 202 trivial. 0 not checked. [2018-11-12 19:14:14,750 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-12 19:14:14,750 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-12 19:14:14,750 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 525 with the following transitions: [2018-11-12 19:14:14,751 INFO L202 CegarAbsIntRunner]: [0], [1], [74], [81], [89], [97], [105], [113], [121], [129], [137], [145], [153], [161], [169], [177], [185], [193], [201], [209], [217], [225], [233], [241], [249], [257], [265], [273], [281], [289], [297], [305], [313], [321], [329], [337], [345], [353], [361], [369], [377], [385], [393], [401], [409], [413], [415], [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], [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], [1167], [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] [2018-11-12 19:14:14,756 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, IntervalDomain] [2018-11-12 19:14:14,757 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-12 19:14:14,921 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-11-12 19:14:15,401 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-11-12 19:14:15,401 INFO L272 AbstractInterpreter]: Visited 283 different actions 846 times. Merged at 7 different actions 19 times. Never widened. Performed 12319 root evaluator evaluations with a maximum evaluation depth of 6. Performed 12319 inverse root evaluator evaluations with a maximum inverse evaluation depth of 6. Found 3 fixpoints after 2 different actions. Largest state had 24 variables. [2018-11-12 19:14:15,412 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-12 19:14:15,412 INFO L398 sIntCurrentIteration]: Generating AbsInt predicates [2018-11-12 19:14:15,981 INFO L227 lantSequenceWeakener]: Weakened 188 states. On average, predicates are now at 80.91% of their original sizes. [2018-11-12 19:14:15,981 INFO L413 sIntCurrentIteration]: Unifying AI predicates [2018-11-12 19:14:16,547 INFO L415 sIntCurrentIteration]: We unified 523 AI predicates to 523 [2018-11-12 19:14:16,548 INFO L424 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-11-12 19:14:16,548 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-11-12 19:14:16,548 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [21] imperfect sequences [5] total 24 [2018-11-12 19:14:16,548 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-12 19:14:16,549 INFO L459 AbstractCegarLoop]: Interpolant automaton has 21 states [2018-11-12 19:14:16,549 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2018-11-12 19:14:16,549 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=90, Invalid=330, Unknown=0, NotChecked=0, Total=420 [2018-11-12 19:14:16,550 INFO L87 Difference]: Start difference. First operand 4229 states and 5238 transitions. Second operand 21 states. Received shutdown request... [2018-11-12 19:14:35,259 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2018-11-12 19:14:35,260 WARN L549 AbstractCegarLoop]: Verification canceled [2018-11-12 19:14:35,266 WARN L205 ceAbstractionStarter]: Timeout [2018-11-12 19:14:35,266 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 12.11 07:14:35 BoogieIcfgContainer [2018-11-12 19:14:35,266 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-11-12 19:14:35,267 INFO L168 Benchmark]: Toolchain (without parser) took 216130.76 ms. Allocated memory was 1.5 GB in the beginning and 5.5 GB in the end (delta: 4.0 GB). Free memory was 1.4 GB in the beginning and 4.3 GB in the end (delta: -3.0 GB). Peak memory consumption was 1.1 GB. Max. memory is 7.1 GB. [2018-11-12 19:14:35,269 INFO L168 Benchmark]: CDTParser took 0.18 ms. Allocated memory is still 1.5 GB. Free memory is still 1.4 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-11-12 19:14:35,270 INFO L168 Benchmark]: CACSL2BoogieTranslator took 1212.14 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: 108.3 MB). Peak memory consumption was 108.3 MB. Max. memory is 7.1 GB. [2018-11-12 19:14:35,271 INFO L168 Benchmark]: Boogie Procedure Inliner took 206.83 ms. Allocated memory was 1.5 GB in the beginning and 2.2 GB in the end (delta: 738.2 MB). Free memory was 1.3 GB in the beginning and 2.2 GB in the end (delta: -883.6 MB). Peak memory consumption was 31.3 MB. Max. memory is 7.1 GB. [2018-11-12 19:14:35,271 INFO L168 Benchmark]: Boogie Preprocessor took 178.36 ms. Allocated memory is still 2.2 GB. Free memory was 2.2 GB in the beginning and 2.2 GB in the end (delta: 13.9 MB). Peak memory consumption was 13.9 MB. Max. memory is 7.1 GB. [2018-11-12 19:14:35,272 INFO L168 Benchmark]: RCFGBuilder took 6671.69 ms. Allocated memory is still 2.2 GB. Free memory was 2.2 GB in the beginning and 1.9 GB in the end (delta: 291.6 MB). Peak memory consumption was 291.6 MB. Max. memory is 7.1 GB. [2018-11-12 19:14:35,273 INFO L168 Benchmark]: TraceAbstraction took 207856.79 ms. Allocated memory was 2.2 GB in the beginning and 5.5 GB in the end (delta: 3.3 GB). Free memory was 1.9 GB in the beginning and 4.3 GB in the end (delta: -2.5 GB). Peak memory consumption was 796.7 MB. Max. memory is 7.1 GB. [2018-11-12 19:14:35,279 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18 ms. Allocated memory is still 1.5 GB. Free memory is still 1.4 GB. There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 1212.14 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: 108.3 MB). Peak memory consumption was 108.3 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 206.83 ms. Allocated memory was 1.5 GB in the beginning and 2.2 GB in the end (delta: 738.2 MB). Free memory was 1.3 GB in the beginning and 2.2 GB in the end (delta: -883.6 MB). Peak memory consumption was 31.3 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 178.36 ms. Allocated memory is still 2.2 GB. Free memory was 2.2 GB in the beginning and 2.2 GB in the end (delta: 13.9 MB). Peak memory consumption was 13.9 MB. Max. memory is 7.1 GB. * RCFGBuilder took 6671.69 ms. Allocated memory is still 2.2 GB. Free memory was 2.2 GB in the beginning and 1.9 GB in the end (delta: 291.6 MB). Peak memory consumption was 291.6 MB. Max. memory is 7.1 GB. * TraceAbstraction took 207856.79 ms. Allocated memory was 2.2 GB in the beginning and 5.5 GB in the end (delta: 3.3 GB). Free memory was 1.9 GB in the beginning and 4.3 GB in the end (delta: -2.5 GB). Peak memory consumption was 796.7 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResultAtElement [Line: 151]: Timeout (TraceAbstraction) Unable to prove that call of __VERIFIER_error() unreachable (line 151). Cancelled while BasicCegarLoop was constructing difference of abstraction (4229states) and FLOYD_HOARE automaton (currently 23 states, 21 states before enhancement),while ReachableStatesComputation was computing reachable states (1008 states constructedinput type IntersectNwa). - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 438 locations, 1 error locations. TIMEOUT Result, 207.7s OverallTime, 7 OverallIterations, 4 TraceHistogramMax, 185.6s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 2398 SDtfs, 14502 SDslu, 2893 SDs, 0 SdLazy, 20503 SolverSat, 2949 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 78.9s Time, PredicateUnifierStatistics: 12 DeclaredPredicates, 2365 GetRequests, 2147 SyntacticMatches, 87 SemanticMatches, 131 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1398 ImplicationChecksByTransitivity, 5.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=4229occurred in iteration=6, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 5.1s AbstIntTime, 6 AbstIntIterations, 6 AbstIntStrong, 0.9979306215682903 AbsIntWeakeningRatio, 0.07040417209908735 AbsIntAvgWeakeningVarsNumRemoved, 18.034332898739677 AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.4s AutomataMinimizationTime, 6 MinimizatonAttempts, 565 StatesRemovedByMinimization, 5 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.1s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 5.4s InterpolantComputationTime, 2362 NumberOfCodeBlocks, 2362 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 2355 ConstructedInterpolants, 0 QuantifiedInterpolants, 6408845 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 7 InterpolantComputations, 1 PerfectInterpolantSequences, 916/1475 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Completed graceful shutdown