java -Xmx8000000000 -jar /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -s ../../../trunk/examples/settings/default/taipan/svcomp-Reach-64bit-Taipan_Default-EXP.epf -i ../../../trunk/examples/svcomp/eca-rers2012/Problem11_label46_true-unreach-call.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-d380424 [2018-10-25 01:33:08,185 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-10-25 01:33:08,188 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-10-25 01:33:08,203 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-10-25 01:33:08,203 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-10-25 01:33:08,204 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-10-25 01:33:08,206 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-10-25 01:33:08,208 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-10-25 01:33:08,209 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-10-25 01:33:08,210 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-10-25 01:33:08,211 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-10-25 01:33:08,212 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-10-25 01:33:08,213 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-10-25 01:33:08,214 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-10-25 01:33:08,215 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-10-25 01:33:08,216 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-10-25 01:33:08,217 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-10-25 01:33:08,218 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-10-25 01:33:08,221 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-10-25 01:33:08,222 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-10-25 01:33:08,223 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-10-25 01:33:08,225 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-10-25 01:33:08,227 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-10-25 01:33:08,227 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-10-25 01:33:08,228 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-10-25 01:33:08,229 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-10-25 01:33:08,230 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-10-25 01:33:08,230 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-10-25 01:33:08,231 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-10-25 01:33:08,232 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-10-25 01:33:08,232 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-10-25 01:33:08,233 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... 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[2018-10-25 01:33:08,236 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/../../../trunk/examples/settings/default/taipan/svcomp-Reach-64bit-Taipan_Default-EXP.epf [2018-10-25 01:33:08,265 INFO L110 SettingsManager]: Loading preferences was successful [2018-10-25 01:33:08,266 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-10-25 01:33:08,267 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-10-25 01:33:08,267 INFO L133 SettingsManager]: * User list type=DISABLED [2018-10-25 01:33:08,267 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-10-25 01:33:08,267 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-10-25 01:33:08,268 INFO L133 SettingsManager]: * Explicit value domain=true [2018-10-25 01:33:08,268 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-10-25 01:33:08,268 INFO L133 SettingsManager]: * Octagon Domain=false [2018-10-25 01:33:08,268 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-10-25 01:33:08,268 INFO L133 SettingsManager]: * Log string format=TERM [2018-10-25 01:33:08,268 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-10-25 01:33:08,269 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-10-25 01:33:08,269 INFO L133 SettingsManager]: * Interval Domain=false [2018-10-25 01:33:08,270 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-10-25 01:33:08,271 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-10-25 01:33:08,271 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-10-25 01:33:08,271 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-10-25 01:33:08,271 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-10-25 01:33:08,271 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-10-25 01:33:08,271 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-10-25 01:33:08,273 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-10-25 01:33:08,274 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-10-25 01:33:08,274 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-10-25 01:33:08,274 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-10-25 01:33:08,274 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-10-25 01:33:08,274 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-10-25 01:33:08,275 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-10-25 01:33:08,275 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-10-25 01:33:08,275 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-10-25 01:33:08,275 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-10-25 01:33:08,275 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-10-25 01:33:08,275 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-10-25 01:33:08,276 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-10-25 01:33:08,276 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-10-25 01:33:08,276 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-10-25 01:33:08,342 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-10-25 01:33:08,356 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-10-25 01:33:08,360 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-10-25 01:33:08,362 INFO L271 PluginConnector]: Initializing CDTParser... [2018-10-25 01:33:08,362 INFO L276 PluginConnector]: CDTParser initialized [2018-10-25 01:33:08,363 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem11_label46_true-unreach-call.c [2018-10-25 01:33:08,433 INFO L218 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/4b6b87f5e/202531fcbb7e4cb388fea9498b9279eb/FLAGcdfd5e047 [2018-10-25 01:33:09,088 INFO L298 CDTParser]: Found 1 translation units. [2018-10-25 01:33:09,090 INFO L158 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem11_label46_true-unreach-call.c [2018-10-25 01:33:09,108 INFO L346 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/4b6b87f5e/202531fcbb7e4cb388fea9498b9279eb/FLAGcdfd5e047 [2018-10-25 01:33:09,130 INFO L354 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/4b6b87f5e/202531fcbb7e4cb388fea9498b9279eb [2018-10-25 01:33:09,143 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-10-25 01:33:09,146 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-10-25 01:33:09,148 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-10-25 01:33:09,148 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-10-25 01:33:09,153 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-10-25 01:33:09,154 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.10 01:33:09" (1/1) ... [2018-10-25 01:33:09,158 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4bb035a5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 01:33:09, skipping insertion in model container [2018-10-25 01:33:09,159 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.10 01:33:09" (1/1) ... [2018-10-25 01:33:09,169 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-10-25 01:33:09,245 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-10-25 01:33:09,839 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-25 01:33:09,847 INFO L189 MainTranslator]: Completed pre-run [2018-10-25 01:33:10,063 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-25 01:33:10,085 INFO L193 MainTranslator]: Completed translation [2018-10-25 01:33:10,085 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 01:33:10 WrapperNode [2018-10-25 01:33:10,085 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-10-25 01:33:10,086 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-10-25 01:33:10,086 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-10-25 01:33:10,087 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-10-25 01:33:10,098 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 01:33:10" (1/1) ... [2018-10-25 01:33:10,134 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 01:33:10" (1/1) ... [2018-10-25 01:33:10,375 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-10-25 01:33:10,376 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-10-25 01:33:10,376 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-10-25 01:33:10,376 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-10-25 01:33:10,387 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 01:33:10" (1/1) ... [2018-10-25 01:33:10,387 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 01:33:10" (1/1) ... [2018-10-25 01:33:10,396 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 01:33:10" (1/1) ... [2018-10-25 01:33:10,396 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 01:33:10" (1/1) ... [2018-10-25 01:33:10,444 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 01:33:10" (1/1) ... [2018-10-25 01:33:10,456 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 01:33:10" (1/1) ... [2018-10-25 01:33:10,480 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 01:33:10" (1/1) ... [2018-10-25 01:33:10,500 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-10-25 01:33:10,500 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-10-25 01:33:10,501 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-10-25 01:33:10,501 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-10-25 01:33:10,502 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 01:33:10" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-10-25 01:33:10,574 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-10-25 01:33:10,575 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-10-25 01:33:10,575 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2018-10-25 01:33:10,575 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2018-10-25 01:33:10,576 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-10-25 01:33:10,576 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-10-25 01:33:10,576 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-10-25 01:33:10,577 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-10-25 01:33:15,116 INFO L341 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-10-25 01:33:15,117 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.10 01:33:15 BoogieIcfgContainer [2018-10-25 01:33:15,117 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-10-25 01:33:15,118 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-10-25 01:33:15,119 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-10-25 01:33:15,122 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-10-25 01:33:15,122 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.10 01:33:09" (1/3) ... [2018-10-25 01:33:15,123 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@758fd388 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.10 01:33:15, skipping insertion in model container [2018-10-25 01:33:15,123 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 01:33:10" (2/3) ... [2018-10-25 01:33:15,124 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@758fd388 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.10 01:33:15, skipping insertion in model container [2018-10-25 01:33:15,124 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.10 01:33:15" (3/3) ... [2018-10-25 01:33:15,126 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem11_label46_true-unreach-call.c [2018-10-25 01:33:15,136 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-10-25 01:33:15,145 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-10-25 01:33:15,164 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-10-25 01:33:15,216 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-10-25 01:33:15,216 INFO L383 AbstractCegarLoop]: Hoare is true [2018-10-25 01:33:15,216 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-10-25 01:33:15,216 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-10-25 01:33:15,217 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-10-25 01:33:15,217 INFO L387 AbstractCegarLoop]: Difference is false [2018-10-25 01:33:15,217 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-10-25 01:33:15,217 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-10-25 01:33:15,255 INFO L276 IsEmpty]: Start isEmpty. Operand 293 states. [2018-10-25 01:33:15,266 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2018-10-25 01:33:15,266 INFO L367 BasicCegarLoop]: Found error trace [2018-10-25 01:33:15,267 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-25 01:33:15,270 INFO L424 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-25 01:33:15,276 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-25 01:33:15,276 INFO L82 PathProgramCache]: Analyzing trace with hash 992823241, now seen corresponding path program 1 times [2018-10-25 01:33:15,279 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-25 01:33:15,338 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-25 01:33:15,338 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-25 01:33:15,338 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-25 01:33:15,338 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-25 01:33:15,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-25 01:33:15,850 WARN L179 SmtUtils]: Spent 167.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 4 [2018-10-25 01:33:15,945 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-25 01:33:15,948 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-25 01:33:15,948 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-10-25 01:33:15,948 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-25 01:33:15,957 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-10-25 01:33:15,972 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-10-25 01:33:15,973 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-10-25 01:33:15,976 INFO L87 Difference]: Start difference. First operand 293 states. Second operand 3 states. [2018-10-25 01:33:18,018 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-25 01:33:18,019 INFO L93 Difference]: Finished difference Result 782 states and 1372 transitions. [2018-10-25 01:33:18,023 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-10-25 01:33:18,024 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 69 [2018-10-25 01:33:18,025 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-25 01:33:18,043 INFO L225 Difference]: With dead ends: 782 [2018-10-25 01:33:18,044 INFO L226 Difference]: Without dead ends: 487 [2018-10-25 01:33:18,052 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 2 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-10-25 01:33:18,074 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 487 states. [2018-10-25 01:33:18,133 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 487 to 482. [2018-10-25 01:33:18,135 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 482 states. [2018-10-25 01:33:18,139 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 482 states to 482 states and 843 transitions. [2018-10-25 01:33:18,141 INFO L78 Accepts]: Start accepts. Automaton has 482 states and 843 transitions. Word has length 69 [2018-10-25 01:33:18,142 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-25 01:33:18,142 INFO L481 AbstractCegarLoop]: Abstraction has 482 states and 843 transitions. [2018-10-25 01:33:18,142 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-10-25 01:33:18,142 INFO L276 IsEmpty]: Start isEmpty. Operand 482 states and 843 transitions. [2018-10-25 01:33:18,154 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 145 [2018-10-25 01:33:18,154 INFO L367 BasicCegarLoop]: Found error trace [2018-10-25 01:33:18,155 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, 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] [2018-10-25 01:33:18,155 INFO L424 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-25 01:33:18,155 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-25 01:33:18,157 INFO L82 PathProgramCache]: Analyzing trace with hash 742048031, now seen corresponding path program 1 times [2018-10-25 01:33:18,157 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-25 01:33:18,159 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-25 01:33:18,159 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-25 01:33:18,160 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-25 01:33:18,160 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-25 01:33:18,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-25 01:33:18,718 INFO L134 CoverageAnalysis]: Checked inductivity of 62 backedges. 62 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-25 01:33:18,719 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-25 01:33:18,719 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2018-10-25 01:33:18,719 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-25 01:33:18,722 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-10-25 01:33:18,722 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-10-25 01:33:18,723 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2018-10-25 01:33:18,723 INFO L87 Difference]: Start difference. First operand 482 states and 843 transitions. Second operand 7 states. [2018-10-25 01:33:25,946 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-25 01:33:25,947 INFO L93 Difference]: Finished difference Result 1760 states and 3239 transitions. [2018-10-25 01:33:25,954 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2018-10-25 01:33:25,954 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 144 [2018-10-25 01:33:25,955 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-25 01:33:25,966 INFO L225 Difference]: With dead ends: 1760 [2018-10-25 01:33:25,967 INFO L226 Difference]: Without dead ends: 1284 [2018-10-25 01:33:25,972 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=48, Invalid=84, Unknown=0, NotChecked=0, Total=132 [2018-10-25 01:33:25,974 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1284 states. [2018-10-25 01:33:26,039 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1284 to 1037. [2018-10-25 01:33:26,040 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1037 states. [2018-10-25 01:33:26,046 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1037 states to 1037 states and 1685 transitions. [2018-10-25 01:33:26,047 INFO L78 Accepts]: Start accepts. Automaton has 1037 states and 1685 transitions. Word has length 144 [2018-10-25 01:33:26,047 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-25 01:33:26,047 INFO L481 AbstractCegarLoop]: Abstraction has 1037 states and 1685 transitions. [2018-10-25 01:33:26,048 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-10-25 01:33:26,048 INFO L276 IsEmpty]: Start isEmpty. Operand 1037 states and 1685 transitions. [2018-10-25 01:33:26,053 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 218 [2018-10-25 01:33:26,053 INFO L367 BasicCegarLoop]: Found error trace [2018-10-25 01:33:26,054 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, 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] [2018-10-25 01:33:26,054 INFO L424 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-25 01:33:26,054 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-25 01:33:26,054 INFO L82 PathProgramCache]: Analyzing trace with hash -1965616979, now seen corresponding path program 1 times [2018-10-25 01:33:26,055 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-25 01:33:26,055 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-25 01:33:26,056 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-25 01:33:26,056 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-25 01:33:26,056 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-25 01:33:26,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-25 01:33:26,380 WARN L179 SmtUtils]: Spent 143.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 4 [2018-10-25 01:33:26,595 INFO L134 CoverageAnalysis]: Checked inductivity of 197 backedges. 124 proven. 68 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2018-10-25 01:33:26,596 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-25 01:33:26,596 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-10-25 01:33:26,597 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 218 with the following transitions: [2018-10-25 01:33:26,599 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [9], [17], [25], [33], [41], [49], [57], [65], [73], [81], [89], [97], [105], [113], [121], [129], [137], [145], [153], [161], [169], [177], [185], [193], [201], [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], [417], [425], [433], [441], [449], [453], [455], [458], [466], [474], [482], [490], [495], [499], [503], [506], [507], [511], [514], [1084], [1088], [1092], [1098], [1102], [1104], [1109], [1110], [1111], [1113], [1114] [2018-10-25 01:33:26,643 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-10-25 01:33:26,643 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-10-25 01:33:27,328 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-10-25 01:33:27,330 INFO L272 AbstractInterpreter]: Visited 80 different actions 80 times. Never merged. Never widened. Never found a fixpoint. Largest state had 28 variables. [2018-10-25 01:33:27,378 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-25 01:33:27,378 INFO L398 sIntCurrentIteration]: Generating AbsInt predicates [2018-10-25 01:33:28,193 INFO L232 lantSequenceWeakener]: Weakened 208 states. On average, predicates are now at 73.92% of their original sizes. [2018-10-25 01:33:28,195 INFO L411 sIntCurrentIteration]: Unifying AI predicates [2018-10-25 01:33:28,468 INFO L413 sIntCurrentIteration]: We have 216 unified AI predicates [2018-10-25 01:33:28,468 INFO L422 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-10-25 01:33:28,469 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-10-25 01:33:28,469 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [6] total 10 [2018-10-25 01:33:28,469 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-25 01:33:28,470 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-10-25 01:33:28,471 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-10-25 01:33:28,471 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-10-25 01:33:28,471 INFO L87 Difference]: Start difference. First operand 1037 states and 1685 transitions. Second operand 6 states. [2018-10-25 01:35:15,047 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-25 01:35:15,047 INFO L93 Difference]: Finished difference Result 2260 states and 3574 transitions. [2018-10-25 01:35:15,047 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-10-25 01:35:15,047 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 217 [2018-10-25 01:35:15,048 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-25 01:35:15,054 INFO L225 Difference]: With dead ends: 2260 [2018-10-25 01:35:15,054 INFO L226 Difference]: Without dead ends: 1229 [2018-10-25 01:35:15,057 INFO L605 BasicCegarLoop]: 2 DeclaredPredicates, 217 GetRequests, 212 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2018-10-25 01:35:15,058 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1229 states. [2018-10-25 01:35:15,084 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1229 to 1227. [2018-10-25 01:35:15,085 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1227 states. [2018-10-25 01:35:15,091 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1227 states to 1227 states and 1883 transitions. [2018-10-25 01:35:15,091 INFO L78 Accepts]: Start accepts. Automaton has 1227 states and 1883 transitions. Word has length 217 [2018-10-25 01:35:15,091 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-25 01:35:15,092 INFO L481 AbstractCegarLoop]: Abstraction has 1227 states and 1883 transitions. [2018-10-25 01:35:15,092 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-10-25 01:35:15,092 INFO L276 IsEmpty]: Start isEmpty. Operand 1227 states and 1883 transitions. [2018-10-25 01:35:15,097 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 262 [2018-10-25 01:35:15,097 INFO L367 BasicCegarLoop]: Found error trace [2018-10-25 01:35:15,097 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-25 01:35:15,098 INFO L424 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-25 01:35:15,098 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-25 01:35:15,098 INFO L82 PathProgramCache]: Analyzing trace with hash -645920121, now seen corresponding path program 1 times [2018-10-25 01:35:15,098 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-25 01:35:15,099 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-25 01:35:15,099 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-25 01:35:15,100 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-25 01:35:15,100 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-25 01:35:15,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-25 01:35:15,607 INFO L134 CoverageAnalysis]: Checked inductivity of 199 backedges. 0 proven. 127 refuted. 0 times theorem prover too weak. 72 trivial. 0 not checked. [2018-10-25 01:35:15,608 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-25 01:35:15,608 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-10-25 01:35:15,608 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 262 with the following transitions: [2018-10-25 01:35:15,609 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [9], [17], [25], [33], [41], [49], [57], [65], [73], [81], [89], [97], [105], [113], [121], [129], [137], [145], [153], [161], [169], [177], [185], [193], [201], [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], [417], [425], [433], [441], [449], [453], [455], [458], [466], [474], [482], [490], [495], [499], [503], [507], [511], [514], [515], [519], [523], [527], [531], [535], [539], [543], [547], [551], [555], [559], [563], [567], [571], [575], [579], [583], [587], [591], [595], [599], [603], [607], [611], [615], [626], [630], [634], [638], [642], [646], [650], [654], [658], [662], [666], [677], [688], [692], [696], [707], [710], [1084], [1088], [1092], [1098], [1102], [1104], [1109], [1110], [1111], [1113], [1114] [2018-10-25 01:35:15,615 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-10-25 01:35:15,615 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-10-25 01:35:17,365 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-10-25 01:35:17,365 INFO L272 AbstractInterpreter]: Visited 126 different actions 374 times. Merged at 7 different actions 20 times. Never widened. Found 3 fixpoints after 3 different actions. Largest state had 28 variables. [2018-10-25 01:35:17,371 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-25 01:35:17,373 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2018-10-25 01:35:17,373 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-25 01:35:17,374 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UTaipan-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 [2018-10-25 01:35:17,389 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-25 01:35:17,390 INFO L288 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-10-25 01:35:17,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-25 01:35:17,509 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-10-25 01:35:19,845 WARN L854 $PredicateComparison]: unable to prove that (or (exists ((v_~a23~0_478 Int)) (let ((.cse0 (mod (+ (div v_~a23~0_478 5) 1) 90))) (and (not (= (mod v_~a23~0_478 5) 0)) (< v_~a23~0_478 0) (<= c_~a23~0 (+ .cse0 49)) (= 0 .cse0) (<= |c_old(~a23~0)| v_~a23~0_478)))) (exists ((v_prenex_5 Int)) (let ((.cse1 (mod (div v_prenex_5 5) 90))) (and (<= 0 v_prenex_5) (= .cse1 0) (<= |c_old(~a23~0)| v_prenex_5) (<= c_~a23~0 (+ .cse1 49))))) (exists ((v_prenex_4 Int)) (let ((.cse3 (div v_prenex_4 5))) (let ((.cse2 (mod .cse3 90))) (and (not (= .cse2 0)) (= (mod v_prenex_4 5) 0) (<= (+ c_~a23~0 41) .cse2) (< .cse3 0) (<= |c_old(~a23~0)| v_prenex_4))))) (exists ((v_prenex_7 Int)) (let ((.cse5 (+ (div v_prenex_7 5) 1))) (let ((.cse4 (mod .cse5 90))) (and (< v_prenex_7 0) (not (= 0 .cse4)) (< .cse5 0) (<= |c_old(~a23~0)| v_prenex_7) (not (= (mod v_prenex_7 5) 0)) (<= (+ c_~a23~0 41) .cse4))))) (exists ((v_prenex_3 Int)) (let ((.cse6 (div v_prenex_3 5))) (and (<= c_~a23~0 (+ (mod .cse6 90) 49)) (= (mod v_prenex_3 5) 0) (<= 0 .cse6) (<= |c_old(~a23~0)| v_prenex_3)))) (exists ((v_prenex_1 Int)) (let ((.cse8 (div v_prenex_1 5))) (let ((.cse7 (mod .cse8 90))) (and (<= (+ c_~a23~0 41) .cse7) (< .cse8 0) (<= 0 v_prenex_1) (not (= .cse7 0)) (<= |c_old(~a23~0)| v_prenex_1))))) (exists ((v_prenex_2 Int)) (let ((.cse9 (div v_prenex_2 5))) (and (<= |c_old(~a23~0)| v_prenex_2) (<= 0 .cse9) (<= c_~a23~0 (+ (mod .cse9 90) 49)) (<= 0 v_prenex_2)))) (exists ((v_prenex_8 Int)) (let ((.cse10 (mod (div v_prenex_8 5) 90))) (and (<= |c_old(~a23~0)| v_prenex_8) (<= c_~a23~0 (+ .cse10 49)) (= .cse10 0) (= (mod v_prenex_8 5) 0)))) (exists ((v_prenex_6 Int)) (let ((.cse11 (+ (div v_prenex_6 5) 1))) (and (<= c_~a23~0 (+ (mod .cse11 90) 49)) (not (= (mod v_prenex_6 5) 0)) (< v_prenex_6 0) (<= |c_old(~a23~0)| v_prenex_6) (<= 0 .cse11))))) is different from true [2018-10-25 01:35:20,208 INFO L134 CoverageAnalysis]: Checked inductivity of 199 backedges. 0 proven. 125 refuted. 0 times theorem prover too weak. 72 trivial. 2 not checked. [2018-10-25 01:35:20,209 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-10-25 01:35:20,573 WARN L179 SmtUtils]: Spent 101.00 ms on a formula simplification that was a NOOP. DAG size: 30 [2018-10-25 01:35:20,766 INFO L134 CoverageAnalysis]: Checked inductivity of 199 backedges. 127 proven. 0 refuted. 0 times theorem prover too weak. 72 trivial. 0 not checked. [2018-10-25 01:35:20,801 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 2 imperfect interpolant sequences. [2018-10-25 01:35:20,801 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [6, 6] total 8 [2018-10-25 01:35:20,801 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-25 01:35:20,802 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-10-25 01:35:20,802 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-10-25 01:35:20,803 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=30, Unknown=1, NotChecked=10, Total=56 [2018-10-25 01:35:20,803 INFO L87 Difference]: Start difference. First operand 1227 states and 1883 transitions. Second operand 3 states. [2018-10-25 01:35:23,948 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-25 01:35:23,948 INFO L93 Difference]: Finished difference Result 2987 states and 4934 transitions. [2018-10-25 01:35:23,956 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-10-25 01:35:23,956 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 261 [2018-10-25 01:35:23,958 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-25 01:35:23,968 INFO L225 Difference]: With dead ends: 2987 [2018-10-25 01:35:23,968 INFO L226 Difference]: Without dead ends: 1956 [2018-10-25 01:35:23,975 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 532 GetRequests, 521 SyntacticMatches, 5 SemanticMatches, 6 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 2.8s TimeCoverageRelationStatistics Valid=15, Invalid=30, Unknown=1, NotChecked=10, Total=56 [2018-10-25 01:35:23,976 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1956 states. [2018-10-25 01:35:24,014 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1956 to 1949. [2018-10-25 01:35:24,014 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1949 states. [2018-10-25 01:35:24,023 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1949 states to 1949 states and 3020 transitions. [2018-10-25 01:35:24,023 INFO L78 Accepts]: Start accepts. Automaton has 1949 states and 3020 transitions. Word has length 261 [2018-10-25 01:35:24,024 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-25 01:35:24,024 INFO L481 AbstractCegarLoop]: Abstraction has 1949 states and 3020 transitions. [2018-10-25 01:35:24,024 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-10-25 01:35:24,024 INFO L276 IsEmpty]: Start isEmpty. Operand 1949 states and 3020 transitions. [2018-10-25 01:35:24,031 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 278 [2018-10-25 01:35:24,031 INFO L367 BasicCegarLoop]: Found error trace [2018-10-25 01:35:24,032 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, 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] [2018-10-25 01:35:24,032 INFO L424 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-25 01:35:24,032 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-25 01:35:24,032 INFO L82 PathProgramCache]: Analyzing trace with hash -1933657177, now seen corresponding path program 1 times [2018-10-25 01:35:24,032 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-25 01:35:24,033 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-25 01:35:24,033 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-25 01:35:24,034 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-25 01:35:24,034 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-25 01:35:24,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-25 01:35:24,634 INFO L134 CoverageAnalysis]: Checked inductivity of 215 backedges. 213 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-25 01:35:24,635 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-25 01:35:24,635 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-10-25 01:35:24,635 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 278 with the following transitions: [2018-10-25 01:35:24,636 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [9], [17], [25], [33], [41], [49], [57], [65], [73], [81], [89], [97], [105], [113], [121], [129], [137], [145], [153], [161], [169], [177], [185], [193], [201], [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], [417], [425], [433], [441], [449], [453], [455], [458], [466], [474], [482], [490], [495], [499], [503], [507], [511], [515], [519], [523], [527], [531], [535], [539], [543], [547], [551], [555], [559], [563], [567], [571], [575], [578], [579], [583], [587], [591], [595], [599], [603], [607], [611], [615], [626], [630], [634], [638], [642], [646], [650], [654], [658], [662], [666], [677], [688], [692], [696], [707], [710], [1084], [1088], [1092], [1098], [1102], [1104], [1109], [1110], [1111], [1113], [1114] [2018-10-25 01:35:24,642 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-10-25 01:35:24,642 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-10-25 01:35:25,399 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-10-25 01:35:25,399 INFO L272 AbstractInterpreter]: Visited 125 different actions 244 times. Merged at 5 different actions 5 times. Never widened. Found 1 fixpoints after 1 different actions. Largest state had 28 variables. [2018-10-25 01:35:25,437 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-25 01:35:25,437 INFO L398 sIntCurrentIteration]: Generating AbsInt predicates [2018-10-25 01:35:26,624 INFO L232 lantSequenceWeakener]: Weakened 144 states. On average, predicates are now at 74.62% of their original sizes. [2018-10-25 01:35:26,625 INFO L411 sIntCurrentIteration]: Unifying AI predicates [2018-10-25 01:35:27,838 INFO L413 sIntCurrentIteration]: We have 276 unified AI predicates [2018-10-25 01:35:27,838 INFO L422 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-10-25 01:35:27,838 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-10-25 01:35:27,839 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [15] imperfect sequences [6] total 19 [2018-10-25 01:35:27,839 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-25 01:35:27,839 INFO L460 AbstractCegarLoop]: Interpolant automaton has 15 states [2018-10-25 01:35:27,840 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2018-10-25 01:35:27,840 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=52, Invalid=158, Unknown=0, NotChecked=0, Total=210 [2018-10-25 01:35:27,840 INFO L87 Difference]: Start difference. First operand 1949 states and 3020 transitions. Second operand 15 states. Received shutdown request... [2018-10-25 01:37:17,013 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2018-10-25 01:37:17,013 WARN L550 AbstractCegarLoop]: Verification canceled [2018-10-25 01:37:17,018 WARN L205 ceAbstractionStarter]: Timeout [2018-10-25 01:37:17,018 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.10 01:37:17 BoogieIcfgContainer [2018-10-25 01:37:17,018 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-10-25 01:37:17,019 INFO L168 Benchmark]: Toolchain (without parser) took 247875.63 ms. Allocated memory was 1.5 GB in the beginning and 4.2 GB in the end (delta: 2.7 GB). Free memory was 1.4 GB in the beginning and 2.0 GB in the end (delta: -557.5 MB). Peak memory consumption was 2.1 GB. Max. memory is 7.1 GB. [2018-10-25 01:37:17,021 INFO L168 Benchmark]: CDTParser took 0.19 ms. Allocated memory is still 1.5 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-10-25 01:37:17,022 INFO L168 Benchmark]: CACSL2BoogieTranslator took 938.04 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.4 GB in the end (delta: 63.4 MB). Peak memory consumption was 63.4 MB. Max. memory is 7.1 GB. [2018-10-25 01:37:17,023 INFO L168 Benchmark]: Boogie Procedure Inliner took 289.16 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 750.3 MB). Free memory was 1.4 GB in the beginning and 2.2 GB in the end (delta: -842.1 MB). Peak memory consumption was 24.2 MB. Max. memory is 7.1 GB. [2018-10-25 01:37:17,024 INFO L168 Benchmark]: Boogie Preprocessor took 124.48 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. [2018-10-25 01:37:17,025 INFO L168 Benchmark]: RCFGBuilder took 4616.98 ms. Allocated memory is still 2.3 GB. Free memory was 2.2 GB in the beginning and 2.0 GB in the end (delta: 186.4 MB). Peak memory consumption was 186.4 MB. Max. memory is 7.1 GB. [2018-10-25 01:37:17,026 INFO L168 Benchmark]: TraceAbstraction took 241900.19 ms. Allocated memory was 2.3 GB in the beginning and 4.2 GB in the end (delta: 1.9 GB). Free memory was 2.0 GB in the beginning and 2.0 GB in the end (delta: 20.7 MB). Peak memory consumption was 1.9 GB. Max. memory is 7.1 GB. [2018-10-25 01:37:17,031 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19 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 938.04 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.4 GB in the end (delta: 63.4 MB). Peak memory consumption was 63.4 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 289.16 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 750.3 MB). Free memory was 1.4 GB in the beginning and 2.2 GB in the end (delta: -842.1 MB). Peak memory consumption was 24.2 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 124.48 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 4616.98 ms. Allocated memory is still 2.3 GB. Free memory was 2.2 GB in the beginning and 2.0 GB in the end (delta: 186.4 MB). Peak memory consumption was 186.4 MB. Max. memory is 7.1 GB. * TraceAbstraction took 241900.19 ms. Allocated memory was 2.3 GB in the beginning and 4.2 GB in the end (delta: 1.9 GB). Free memory was 2.0 GB in the beginning and 2.0 GB in the end (delta: 20.7 MB). Peak memory consumption was 1.9 GB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResultAtElement [Line: 192]: Timeout (TraceAbstraction) Unable to prove that call of __VERIFIER_error() unreachable (line 192). Cancelled while BasicCegarLoop was constructing difference of abstraction (1949states) and FLOYD_HOARE automaton (currently 20 states, 15 states before enhancement),while ReachableStatesComputation was computing reachable states (2756 states constructedinput type IntersectNwa). - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 293 locations, 1 error locations. TIMEOUT Result, 241.8s OverallTime, 5 OverallIterations, 3 TraceHistogramMax, 228.2s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 1242 SDtfs, 3445 SDslu, 803 SDs, 0 SdLazy, 6666 SolverSat, 1112 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 204.4s Time, PredicateUnifierStatistics: 4 DeclaredPredicates, 1050 GetRequests, 1001 SyntacticMatches, 7 SemanticMatches, 42 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 95 ImplicationChecksByTransitivity, 4.9s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1949occurred in iteration=4, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 3.3s AbstIntTime, 3 AbstIntIterations, 2 AbstIntStrong, 0.9977605795288718 AbsIntWeakeningRatio, 0.11382113821138211 AbsIntAvgWeakeningVarsNumRemoved, 8.189024390243903 AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.2s AutomataMinimizationTime, 4 MinimizatonAttempts, 261 StatesRemovedByMinimization, 4 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 5.4s InterpolantComputationTime, 1229 NumberOfCodeBlocks, 1229 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 1483 ConstructedInterpolants, 2 QuantifiedInterpolants, 1236066 SizeOfPredicates, 3 NumberOfNonLiveVariables, 465 ConjunctsInSsa, 11 ConjunctsInUnsatCore, 7 InterpolantComputations, 3 PerfectInterpolantSequences, 747/1071 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Completed graceful shutdown