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/Problem16_label54_false-unreach-call.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-63daa26 [2018-11-12 16:45:28,138 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-12 16:45:28,140 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-12 16:45:28,154 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-12 16:45:28,155 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-12 16:45:28,156 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-12 16:45:28,157 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-12 16:45:28,160 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-12 16:45:28,162 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-12 16:45:28,162 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-12 16:45:28,164 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-12 16:45:28,167 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-12 16:45:28,168 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-12 16:45:28,171 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-12 16:45:28,173 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-12 16:45:28,174 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-12 16:45:28,175 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-12 16:45:28,177 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-12 16:45:28,184 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-12 16:45:28,186 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-12 16:45:28,187 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-12 16:45:28,188 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-12 16:45:28,191 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-12 16:45:28,191 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-12 16:45:28,192 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-12 16:45:28,193 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-12 16:45:28,194 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-12 16:45:28,195 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-12 16:45:28,195 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-12 16:45:28,197 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-12 16:45:28,197 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-12 16:45:28,198 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-12 16:45:28,198 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-12 16:45:28,198 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-12 16:45:28,199 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-12 16:45:28,200 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-12 16:45:28,200 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 16:45:28,216 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-12 16:45:28,216 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-12 16:45:28,217 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-12 16:45:28,217 INFO L133 SettingsManager]: * User list type=DISABLED [2018-11-12 16:45:28,218 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-11-12 16:45:28,218 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-11-12 16:45:28,218 INFO L133 SettingsManager]: * Maximum recursion depth of evaluation operations=6 [2018-11-12 16:45:28,218 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-11-12 16:45:28,218 INFO L133 SettingsManager]: * Octagon Domain=false [2018-11-12 16:45:28,219 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-11-12 16:45:28,219 INFO L133 SettingsManager]: * Log string format=TERM [2018-11-12 16:45:28,219 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-11-12 16:45:28,219 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-11-12 16:45:28,220 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-12 16:45:28,220 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-12 16:45:28,220 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-12 16:45:28,221 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-12 16:45:28,221 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-12 16:45:28,221 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-12 16:45:28,221 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-12 16:45:28,221 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-12 16:45:28,222 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-12 16:45:28,222 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-12 16:45:28,222 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-12 16:45:28,222 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-12 16:45:28,222 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-12 16:45:28,222 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-12 16:45:28,223 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-12 16:45:28,223 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-12 16:45:28,223 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-11-12 16:45:28,223 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-12 16:45:28,223 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-11-12 16:45:28,224 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-11-12 16:45:28,224 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-11-12 16:45:28,224 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-11-12 16:45:28,270 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-12 16:45:28,283 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-12 16:45:28,288 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-12 16:45:28,290 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-12 16:45:28,290 INFO L276 PluginConnector]: CDTParser initialized [2018-11-12 16:45:28,291 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem16_label54_false-unreach-call.c [2018-11-12 16:45:28,369 INFO L218 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5e5910d96/93444f4a3aca40abb147568658b740e6/FLAG9dabb34a5 [2018-11-12 16:45:29,053 INFO L298 CDTParser]: Found 1 translation units. [2018-11-12 16:45:29,056 INFO L158 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem16_label54_false-unreach-call.c [2018-11-12 16:45:29,078 INFO L346 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5e5910d96/93444f4a3aca40abb147568658b740e6/FLAG9dabb34a5 [2018-11-12 16:45:29,099 INFO L354 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5e5910d96/93444f4a3aca40abb147568658b740e6 [2018-11-12 16:45:29,112 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-12 16:45:29,114 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-11-12 16:45:29,115 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-12 16:45:29,115 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-12 16:45:29,123 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-12 16:45:29,124 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 04:45:29" (1/1) ... [2018-11-12 16:45:29,128 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6675b0b5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 04:45:29, skipping insertion in model container [2018-11-12 16:45:29,128 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 04:45:29" (1/1) ... [2018-11-12 16:45:29,139 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-12 16:45:29,242 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-11-12 16:45:30,020 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-12 16:45:30,025 INFO L189 MainTranslator]: Completed pre-run [2018-11-12 16:45:30,240 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-12 16:45:30,264 INFO L193 MainTranslator]: Completed translation [2018-11-12 16:45:30,264 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 04:45:30 WrapperNode [2018-11-12 16:45:30,264 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-12 16:45:30,266 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-12 16:45:30,266 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-12 16:45:30,267 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-12 16:45:30,403 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 04:45:30" (1/1) ... [2018-11-12 16:45:30,457 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 04:45:30" (1/1) ... [2018-11-12 16:45:30,465 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-12 16:45:30,466 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-12 16:45:30,466 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-12 16:45:30,466 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-12 16:45:30,478 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 04:45:30" (1/1) ... [2018-11-12 16:45:30,478 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 04:45:30" (1/1) ... [2018-11-12 16:45:30,503 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 04:45:30" (1/1) ... [2018-11-12 16:45:30,503 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 04:45:30" (1/1) ... [2018-11-12 16:45:30,568 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 04:45:30" (1/1) ... [2018-11-12 16:45:30,586 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 04:45:30" (1/1) ... [2018-11-12 16:45:30,598 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 04:45:30" (1/1) ... [2018-11-12 16:45:30,616 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-12 16:45:30,617 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-12 16:45:30,617 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-12 16:45:30,617 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-12 16:45:30,618 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 04:45:30" (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 16:45:30,688 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2018-11-12 16:45:30,689 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-12 16:45:30,689 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-12 16:45:30,689 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output2 [2018-11-12 16:45:30,689 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output2 [2018-11-12 16:45:30,689 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2018-11-12 16:45:30,690 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2018-11-12 16:45:30,690 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-12 16:45:30,690 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-12 16:45:30,690 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-12 16:45:30,690 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-12 16:45:37,332 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-12 16:45:37,332 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 04:45:37 BoogieIcfgContainer [2018-11-12 16:45:37,333 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-12 16:45:37,334 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-12 16:45:37,335 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-12 16:45:37,339 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-12 16:45:37,339 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.11 04:45:29" (1/3) ... [2018-11-12 16:45:37,340 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@37137580 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 04:45:37, skipping insertion in model container [2018-11-12 16:45:37,340 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 04:45:30" (2/3) ... [2018-11-12 16:45:37,341 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@37137580 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 04:45:37, skipping insertion in model container [2018-11-12 16:45:37,341 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 04:45:37" (3/3) ... [2018-11-12 16:45:37,343 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem16_label54_false-unreach-call.c [2018-11-12 16:45:37,355 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-12 16:45:37,363 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-11-12 16:45:37,378 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-11-12 16:45:37,428 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-12 16:45:37,428 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-12 16:45:37,429 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-12 16:45:37,429 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-12 16:45:37,429 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-12 16:45:37,429 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-12 16:45:37,429 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-12 16:45:37,429 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-12 16:45:37,475 INFO L276 IsEmpty]: Start isEmpty. Operand 410 states. [2018-11-12 16:45:37,482 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2018-11-12 16:45:37,482 INFO L367 BasicCegarLoop]: Found error trace [2018-11-12 16:45:37,483 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] [2018-11-12 16:45:37,486 INFO L423 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-12 16:45:37,491 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-12 16:45:37,491 INFO L82 PathProgramCache]: Analyzing trace with hash -1160914644, now seen corresponding path program 1 times [2018-11-12 16:45:37,494 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-12 16:45:37,539 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-12 16:45:37,539 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-12 16:45:37,540 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-12 16:45:37,540 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-12 16:45:37,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-12 16:45:37,848 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 16:45:37,851 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-12 16:45:37,851 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-11-12 16:45:37,851 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-12 16:45:37,856 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-11-12 16:45:37,869 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-12 16:45:37,869 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-12 16:45:37,872 INFO L87 Difference]: Start difference. First operand 410 states. Second operand 3 states. [2018-11-12 16:45:41,302 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-12 16:45:41,303 INFO L93 Difference]: Finished difference Result 1156 states and 2144 transitions. [2018-11-12 16:45:41,304 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-12 16:45:41,305 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 32 [2018-11-12 16:45:41,306 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-12 16:45:41,330 INFO L225 Difference]: With dead ends: 1156 [2018-11-12 16:45:41,330 INFO L226 Difference]: Without dead ends: 744 [2018-11-12 16:45:41,338 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 2 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-12 16:45:41,359 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 744 states. [2018-11-12 16:45:41,453 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 744 to 744. [2018-11-12 16:45:41,457 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 744 states. [2018-11-12 16:45:41,465 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 744 states to 744 states and 1353 transitions. [2018-11-12 16:45:41,467 INFO L78 Accepts]: Start accepts. Automaton has 744 states and 1353 transitions. Word has length 32 [2018-11-12 16:45:41,468 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-12 16:45:41,468 INFO L480 AbstractCegarLoop]: Abstraction has 744 states and 1353 transitions. [2018-11-12 16:45:41,468 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-11-12 16:45:41,468 INFO L276 IsEmpty]: Start isEmpty. Operand 744 states and 1353 transitions. [2018-11-12 16:45:41,475 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 126 [2018-11-12 16:45:41,476 INFO L367 BasicCegarLoop]: Found error trace [2018-11-12 16:45:41,476 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 16:45:41,477 INFO L423 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-12 16:45:41,477 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-12 16:45:41,477 INFO L82 PathProgramCache]: Analyzing trace with hash -1315464537, now seen corresponding path program 1 times [2018-11-12 16:45:41,477 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-12 16:45:41,479 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-12 16:45:41,479 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-12 16:45:41,479 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-12 16:45:41,479 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-12 16:45:41,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-12 16:45:41,871 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 25 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-12 16:45:41,871 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-12 16:45:41,872 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-11-12 16:45:41,872 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-12 16:45:41,874 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-11-12 16:45:41,874 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-11-12 16:45:41,875 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-11-12 16:45:41,875 INFO L87 Difference]: Start difference. First operand 744 states and 1353 transitions. Second operand 6 states. [2018-11-12 16:45:48,872 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-12 16:45:48,872 INFO L93 Difference]: Finished difference Result 2184 states and 3997 transitions. [2018-11-12 16:45:48,875 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-11-12 16:45:48,875 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 125 [2018-11-12 16:45:48,877 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-12 16:45:48,889 INFO L225 Difference]: With dead ends: 2184 [2018-11-12 16:45:48,889 INFO L226 Difference]: Without dead ends: 1446 [2018-11-12 16:45:48,895 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2018-11-12 16:45:48,897 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1446 states. [2018-11-12 16:45:48,977 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1446 to 1425. [2018-11-12 16:45:48,978 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1425 states. [2018-11-12 16:45:48,986 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1425 states to 1425 states and 2267 transitions. [2018-11-12 16:45:48,986 INFO L78 Accepts]: Start accepts. Automaton has 1425 states and 2267 transitions. Word has length 125 [2018-11-12 16:45:48,987 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-12 16:45:48,987 INFO L480 AbstractCegarLoop]: Abstraction has 1425 states and 2267 transitions. [2018-11-12 16:45:48,987 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-11-12 16:45:48,987 INFO L276 IsEmpty]: Start isEmpty. Operand 1425 states and 2267 transitions. [2018-11-12 16:45:49,003 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 237 [2018-11-12 16:45:49,005 INFO L367 BasicCegarLoop]: Found error trace [2018-11-12 16:45:49,005 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2018-11-12 16:45:49,006 INFO L423 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-12 16:45:49,006 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-12 16:45:49,007 INFO L82 PathProgramCache]: Analyzing trace with hash 928114384, now seen corresponding path program 1 times [2018-11-12 16:45:49,007 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-12 16:45:49,008 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-12 16:45:49,008 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-12 16:45:49,009 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-12 16:45:49,009 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-12 16:45:49,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-12 16:45:49,394 INFO L134 CoverageAnalysis]: Checked inductivity of 143 backedges. 50 proven. 88 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2018-11-12 16:45:49,394 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-12 16:45:49,394 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-12 16:45:49,395 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 237 with the following transitions: [2018-11-12 16:45:49,397 INFO L202 CegarAbsIntRunner]: [0], [1], [180], [187], [195], [203], [211], [219], [227], [235], [243], [251], [259], [267], [275], [283], [291], [299], [307], [315], [323], [331], [335], [337], [340], [348], [356], [364], [372], [380], [388], [396], [404], [412], [420], [428], [436], [444], [452], [460], [468], [476], [484], [492], [500], [508], [516], [524], [532], [540], [548], [556], [564], [572], [580], [588], [596], [604], [612], [620], [628], [636], [644], [652], [660], [668], [673], [677], [681], [685], [689], [693], [697], [701], [705], [709], [713], [717], [721], [725], [729], [733], [737], [741], [745], [749], [753], [757], [761], [764], [765], [769], [773], [777], [781], [785], [789], [793], [797], [801], [805], [809], [813], [817], [821], [825], [829], [833], [836], [1552], [1556], [1560], [1566], [1570], [1572], [1579], [1580], [1581], [1583], [1584] [2018-11-12 16:45:49,452 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, IntervalDomain] [2018-11-12 16:45:49,452 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-12 16:45:50,298 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-11-12 16:45:50,302 INFO L272 AbstractInterpreter]: Visited 116 different actions 116 times. Never merged. Never widened. Performed 1920 root evaluator evaluations with a maximum evaluation depth of 6. Performed 1920 inverse root evaluator evaluations with a maximum inverse evaluation depth of 6. Never found a fixpoint. Largest state had 24 variables. [2018-11-12 16:45:50,351 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-12 16:45:50,351 INFO L398 sIntCurrentIteration]: Generating AbsInt predicates [2018-11-12 16:45:51,392 INFO L227 lantSequenceWeakener]: Weakened 214 states. On average, predicates are now at 77.68% of their original sizes. [2018-11-12 16:45:51,392 INFO L413 sIntCurrentIteration]: Unifying AI predicates [2018-11-12 16:45:53,599 INFO L415 sIntCurrentIteration]: We unified 235 AI predicates to 235 [2018-11-12 16:45:53,602 INFO L424 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-11-12 16:45:53,603 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-11-12 16:45:53,603 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [10] imperfect sequences [6] total 14 [2018-11-12 16:45:53,603 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-12 16:45:53,605 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2018-11-12 16:45:53,605 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2018-11-12 16:45:53,605 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2018-11-12 16:45:53,606 INFO L87 Difference]: Start difference. First operand 1425 states and 2267 transitions. Second operand 10 states. [2018-11-12 16:45:58,426 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-11-12 16:46:22,953 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-12 16:46:22,954 INFO L93 Difference]: Finished difference Result 3187 states and 5096 transitions. [2018-11-12 16:46:22,954 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2018-11-12 16:46:22,954 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 236 [2018-11-12 16:46:22,956 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-12 16:46:22,966 INFO L225 Difference]: With dead ends: 3187 [2018-11-12 16:46:22,966 INFO L226 Difference]: Without dead ends: 1768 [2018-11-12 16:46:22,972 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 239 GetRequests, 207 SyntacticMatches, 20 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 83 ImplicationChecksByTransitivity, 2.3s TimeCoverageRelationStatistics Valid=59, Invalid=123, Unknown=0, NotChecked=0, Total=182 [2018-11-12 16:46:22,974 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1768 states. [2018-11-12 16:46:23,016 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1768 to 1763. [2018-11-12 16:46:23,017 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1763 states. [2018-11-12 16:46:23,024 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1763 states to 1763 states and 2612 transitions. [2018-11-12 16:46:23,024 INFO L78 Accepts]: Start accepts. Automaton has 1763 states and 2612 transitions. Word has length 236 [2018-11-12 16:46:23,025 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-12 16:46:23,025 INFO L480 AbstractCegarLoop]: Abstraction has 1763 states and 2612 transitions. [2018-11-12 16:46:23,025 INFO L481 AbstractCegarLoop]: Interpolant automaton has 10 states. [2018-11-12 16:46:23,025 INFO L276 IsEmpty]: Start isEmpty. Operand 1763 states and 2612 transitions. [2018-11-12 16:46:23,032 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 329 [2018-11-12 16:46:23,033 INFO L367 BasicCegarLoop]: Found error trace [2018-11-12 16:46:23,033 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, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 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 16:46:23,034 INFO L423 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-12 16:46:23,034 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-12 16:46:23,034 INFO L82 PathProgramCache]: Analyzing trace with hash -1607710254, now seen corresponding path program 1 times [2018-11-12 16:46:23,034 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-12 16:46:23,035 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-12 16:46:23,036 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-12 16:46:23,036 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-12 16:46:23,036 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-12 16:46:23,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-12 16:46:23,384 WARN L179 SmtUtils]: Spent 138.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 4 [2018-11-12 16:46:23,884 INFO L134 CoverageAnalysis]: Checked inductivity of 352 backedges. 81 proven. 197 refuted. 0 times theorem prover too weak. 74 trivial. 0 not checked. [2018-11-12 16:46:23,885 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-12 16:46:23,885 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-12 16:46:23,885 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 329 with the following transitions: [2018-11-12 16:46:23,886 INFO L202 CegarAbsIntRunner]: [0], [1], [180], [187], [195], [203], [211], [219], [227], [235], [243], [251], [259], [267], [275], [283], [291], [299], [307], [315], [323], [331], [335], [337], [340], [348], [356], [364], [372], [380], [388], [396], [404], [412], [420], [428], [436], [444], [452], [460], [468], [476], [484], [492], [500], [508], [516], [524], [532], [540], [548], [556], [564], [572], [580], [588], [596], [604], [612], [620], [628], [636], [644], [652], [660], [668], [673], [677], [681], [685], [689], [693], [697], [701], [705], [709], [713], [717], [721], [725], [729], [733], [737], [741], [745], [749], [753], [757], [760], [761], [764], [765], [769], [773], [777], [781], [785], [789], [793], [797], [801], [805], [809], [813], [817], [821], [825], [829], [833], [836], [1552], [1556], [1560], [1566], [1570], [1572], [1579], [1580], [1581], [1583], [1584] [2018-11-12 16:46:23,892 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, IntervalDomain] [2018-11-12 16:46:23,892 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-12 16:46:23,975 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-11-12 16:46:25,067 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-11-12 16:46:25,068 INFO L272 AbstractInterpreter]: Visited 120 different actions 347 times. Merged at 5 different actions 9 times. Never widened. Performed 4855 root evaluator evaluations with a maximum evaluation depth of 6. Performed 4855 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 16:46:25,099 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-12 16:46:25,099 INFO L398 sIntCurrentIteration]: Generating AbsInt predicates [2018-11-12 16:46:25,840 INFO L227 lantSequenceWeakener]: Weakened 84 states. On average, predicates are now at 77.49% of their original sizes. [2018-11-12 16:46:25,840 INFO L413 sIntCurrentIteration]: Unifying AI predicates [2018-11-12 16:46:26,961 INFO L415 sIntCurrentIteration]: We unified 327 AI predicates to 327 [2018-11-12 16:46:26,961 INFO L424 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-11-12 16:46:26,962 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-11-12 16:46:26,962 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [18] imperfect sequences [6] total 22 [2018-11-12 16:46:26,962 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-12 16:46:26,963 INFO L459 AbstractCegarLoop]: Interpolant automaton has 18 states [2018-11-12 16:46:26,963 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2018-11-12 16:46:26,963 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=72, Invalid=234, Unknown=0, NotChecked=0, Total=306 [2018-11-12 16:46:26,963 INFO L87 Difference]: Start difference. First operand 1763 states and 2612 transitions. Second operand 18 states. [2018-11-12 16:47:10,409 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-12 16:47:10,410 INFO L93 Difference]: Finished difference Result 4356 states and 6646 transitions. [2018-11-12 16:47:10,410 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2018-11-12 16:47:10,410 INFO L78 Accepts]: Start accepts. Automaton has 18 states. Word has length 328 [2018-11-12 16:47:10,412 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-12 16:47:10,424 INFO L225 Difference]: With dead ends: 4356 [2018-11-12 16:47:10,424 INFO L226 Difference]: Without dead ends: 2937 [2018-11-12 16:47:10,430 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 337 GetRequests, 296 SyntacticMatches, 15 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 236 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=168, Invalid=588, Unknown=0, NotChecked=0, Total=756 [2018-11-12 16:47:10,432 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2937 states. [2018-11-12 16:47:10,492 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2937 to 2707. [2018-11-12 16:47:10,492 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2707 states. [2018-11-12 16:47:10,501 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2707 states to 2707 states and 3594 transitions. [2018-11-12 16:47:10,501 INFO L78 Accepts]: Start accepts. Automaton has 2707 states and 3594 transitions. Word has length 328 [2018-11-12 16:47:10,502 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-12 16:47:10,502 INFO L480 AbstractCegarLoop]: Abstraction has 2707 states and 3594 transitions. [2018-11-12 16:47:10,502 INFO L481 AbstractCegarLoop]: Interpolant automaton has 18 states. [2018-11-12 16:47:10,502 INFO L276 IsEmpty]: Start isEmpty. Operand 2707 states and 3594 transitions. [2018-11-12 16:47:10,511 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 365 [2018-11-12 16:47:10,511 INFO L367 BasicCegarLoop]: Found error trace [2018-11-12 16:47:10,511 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, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 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 16:47:10,512 INFO L423 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-12 16:47:10,512 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-12 16:47:10,512 INFO L82 PathProgramCache]: Analyzing trace with hash 601477834, now seen corresponding path program 1 times [2018-11-12 16:47:10,512 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-12 16:47:10,513 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-12 16:47:10,513 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-12 16:47:10,513 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-12 16:47:10,514 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-12 16:47:10,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-12 16:47:10,857 WARN L179 SmtUtils]: Spent 165.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 4 [2018-11-12 16:47:11,363 INFO L134 CoverageAnalysis]: Checked inductivity of 372 backedges. 81 proven. 217 refuted. 0 times theorem prover too weak. 74 trivial. 0 not checked. [2018-11-12 16:47:11,363 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-12 16:47:11,363 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-12 16:47:11,363 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 365 with the following transitions: [2018-11-12 16:47:11,364 INFO L202 CegarAbsIntRunner]: [0], [1], [180], [187], [195], [203], [211], [219], [227], [235], [243], [251], [259], [267], [275], [283], [291], [299], [307], [315], [323], [331], [335], [337], [340], [348], [356], [364], [372], [380], [388], [396], [404], [412], [420], [428], [436], [444], [452], [460], [468], [476], [484], [492], [500], [508], [516], [524], [532], [540], [548], [556], [564], [572], [580], [588], [596], [604], [612], [620], [628], [636], [644], [652], [660], [668], [673], [677], [681], [685], [689], [693], [697], [701], [705], [709], [713], [717], [721], [725], [729], [733], [737], [741], [745], [749], [753], [757], [761], [764], [765], [769], [773], [777], [781], [785], [789], [793], [797], [801], [805], [809], [813], [817], [821], [825], [829], [833], [836], [837], [841], [845], [849], [853], [857], [861], [865], [869], [873], [877], [881], [885], [889], [893], [897], [901], [904], [1552], [1556], [1560], [1566], [1570], [1572], [1579], [1580], [1581], [1583], [1584] [2018-11-12 16:47:11,370 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, IntervalDomain] [2018-11-12 16:47:11,370 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-12 16:47:11,531 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-11-12 16:47:11,785 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-11-12 16:47:11,786 INFO L272 AbstractInterpreter]: Visited 137 different actions 398 times. Merged at 5 different actions 9 times. Never widened. Performed 7065 root evaluator evaluations with a maximum evaluation depth of 6. Performed 7065 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 16:47:11,792 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-12 16:47:11,792 INFO L398 sIntCurrentIteration]: Generating AbsInt predicates [2018-11-12 16:47:12,295 INFO L227 lantSequenceWeakener]: Weakened 84 states. On average, predicates are now at 77.49% of their original sizes. [2018-11-12 16:47:12,295 INFO L413 sIntCurrentIteration]: Unifying AI predicates [2018-11-12 16:47:13,709 INFO L415 sIntCurrentIteration]: We unified 363 AI predicates to 363 [2018-11-12 16:47:13,709 INFO L424 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-11-12 16:47:13,710 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-11-12 16:47:13,710 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [17] imperfect sequences [6] total 21 [2018-11-12 16:47:13,710 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-12 16:47:13,711 INFO L459 AbstractCegarLoop]: Interpolant automaton has 17 states [2018-11-12 16:47:13,711 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2018-11-12 16:47:13,711 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=64, Invalid=208, Unknown=0, NotChecked=0, Total=272 [2018-11-12 16:47:13,712 INFO L87 Difference]: Start difference. First operand 2707 states and 3594 transitions. Second operand 17 states. [2018-11-12 16:47:57,061 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-12 16:47:57,061 INFO L93 Difference]: Finished difference Result 5358 states and 7703 transitions. [2018-11-12 16:47:57,061 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2018-11-12 16:47:57,062 INFO L78 Accepts]: Start accepts. Automaton has 17 states. Word has length 364 [2018-11-12 16:47:57,062 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-12 16:47:57,077 INFO L225 Difference]: With dead ends: 5358 [2018-11-12 16:47:57,077 INFO L226 Difference]: Without dead ends: 3595 [2018-11-12 16:47:57,083 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 372 GetRequests, 333 SyntacticMatches, 15 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 158 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=149, Invalid=501, Unknown=0, NotChecked=0, Total=650 [2018-11-12 16:47:57,086 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3595 states. [2018-11-12 16:47:57,158 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3595 to 3363. [2018-11-12 16:47:57,158 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3363 states. [2018-11-12 16:47:57,167 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3363 states to 3363 states and 4280 transitions. [2018-11-12 16:47:57,168 INFO L78 Accepts]: Start accepts. Automaton has 3363 states and 4280 transitions. Word has length 364 [2018-11-12 16:47:57,168 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-12 16:47:57,169 INFO L480 AbstractCegarLoop]: Abstraction has 3363 states and 4280 transitions. [2018-11-12 16:47:57,169 INFO L481 AbstractCegarLoop]: Interpolant automaton has 17 states. [2018-11-12 16:47:57,169 INFO L276 IsEmpty]: Start isEmpty. Operand 3363 states and 4280 transitions. [2018-11-12 16:47:57,183 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 477 [2018-11-12 16:47:57,183 INFO L367 BasicCegarLoop]: Found error trace [2018-11-12 16:47:57,183 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, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 16:47:57,184 INFO L423 AbstractCegarLoop]: === Iteration 6 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-12 16:47:57,184 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-12 16:47:57,184 INFO L82 PathProgramCache]: Analyzing trace with hash -2051588886, now seen corresponding path program 1 times [2018-11-12 16:47:57,184 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-12 16:47:57,185 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-12 16:47:57,185 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-12 16:47:57,186 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-12 16:47:57,186 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-12 16:47:57,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-12 16:47:57,587 WARN L179 SmtUtils]: Spent 141.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 4 [2018-11-12 16:47:58,221 INFO L134 CoverageAnalysis]: Checked inductivity of 372 backedges. 81 proven. 217 refuted. 0 times theorem prover too weak. 74 trivial. 0 not checked. [2018-11-12 16:47:58,222 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-12 16:47:58,222 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-12 16:47:58,222 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 477 with the following transitions: [2018-11-12 16:47:58,223 INFO L202 CegarAbsIntRunner]: [0], [1], [180], [187], [195], [203], [211], [219], [227], [235], [243], [251], [259], [267], [275], [283], [291], [299], [307], [315], [323], [331], [335], [337], [340], [348], [356], [364], [372], [380], [388], [396], [404], [412], [420], [428], [436], [444], [452], [460], [468], [476], [484], [492], [500], [508], [516], [524], [532], [540], [548], [556], [564], [572], [580], [588], [596], [604], [612], [620], [628], [636], [644], [652], [660], [668], [673], [677], [681], [685], [689], [693], [697], [701], [705], [709], [713], [717], [721], [725], [729], [733], [737], [741], [745], [749], [753], [757], [761], [764], [765], [769], [773], [777], [781], [785], [789], [793], [797], [801], [805], [809], [813], [817], [821], [825], [829], [833], [836], [837], [841], [845], [849], [853], [857], [861], [865], [869], [873], [877], [881], [885], [889], [893], [897], [901], [905], [909], [913], [917], [921], [925], [929], [933], [937], [941], [945], [949], [953], [957], [961], [965], [969], [973], [977], [981], [985], [989], [993], [997], [1001], [1005], [1009], [1013], [1017], [1021], [1025], [1029], [1033], [1037], [1041], [1045], [1049], [1053], [1057], [1061], [1065], [1069], [1073], [1077], [1081], [1085], [1089], [1093], [1097], [1101], [1105], [1109], [1113], [1117], [1121], [1125], [1129], [1133], [1137], [1141], [1145], [1149], [1153], [1157], [1161], [1165], [1169], [1173], [1177], [1181], [1185], [1189], [1193], [1197], [1201], [1205], [1209], [1213], [1217], [1221], [1225], [1229], [1233], [1237], [1241], [1245], [1249], [1253], [1257], [1261], [1265], [1269], [1273], [1277], [1281], [1285], [1289], [1293], [1297], [1301], [1305], [1309], [1313], [1317], [1321], [1325], [1329], [1333], [1337], [1341], [1345], [1349], [1352], [1552], [1556], [1560], [1566], [1570], [1572], [1579], [1580], [1581], [1583], [1584] [2018-11-12 16:47:58,233 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, IntervalDomain] [2018-11-12 16:47:58,234 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-12 16:47:58,904 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-11-12 16:47:58,904 INFO L272 AbstractInterpreter]: Visited 249 different actions 494 times. Merged at 5 different actions 7 times. Never widened. Performed 8203 root evaluator evaluations with a maximum evaluation depth of 6. Performed 8203 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 16:47:58,940 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-12 16:47:58,941 INFO L398 sIntCurrentIteration]: Generating AbsInt predicates [2018-11-12 16:47:59,978 INFO L227 lantSequenceWeakener]: Weakened 246 states. On average, predicates are now at 77.78% of their original sizes. [2018-11-12 16:47:59,978 INFO L413 sIntCurrentIteration]: Unifying AI predicates [2018-11-12 16:48:00,531 INFO L415 sIntCurrentIteration]: We unified 475 AI predicates to 475 [2018-11-12 16:48:00,531 INFO L424 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-11-12 16:48:00,532 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-11-12 16:48:00,532 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [18] imperfect sequences [6] total 22 [2018-11-12 16:48:00,532 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-12 16:48:00,533 INFO L459 AbstractCegarLoop]: Interpolant automaton has 18 states [2018-11-12 16:48:00,533 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2018-11-12 16:48:00,533 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=62, Invalid=244, Unknown=0, NotChecked=0, Total=306 [2018-11-12 16:48:00,534 INFO L87 Difference]: Start difference. First operand 3363 states and 4280 transitions. Second operand 18 states. [2018-11-12 16:48:02,725 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-11-12 16:48:31,874 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-12 16:48:31,874 INFO L93 Difference]: Finished difference Result 6104 states and 8325 transitions. [2018-11-12 16:48:31,875 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2018-11-12 16:48:31,875 INFO L78 Accepts]: Start accepts. Automaton has 18 states. Word has length 476 [2018-11-12 16:48:31,876 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-12 16:48:31,890 INFO L225 Difference]: With dead ends: 6104 [2018-11-12 16:48:31,890 INFO L226 Difference]: Without dead ends: 3999 [2018-11-12 16:48:31,896 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 491 GetRequests, 439 SyntacticMatches, 20 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 406 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=213, Invalid=909, Unknown=0, NotChecked=0, Total=1122 [2018-11-12 16:48:31,899 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3999 states. [2018-11-12 16:48:31,982 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3999 to 3994. [2018-11-12 16:48:31,982 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3994 states. [2018-11-12 16:48:31,990 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3994 states to 3994 states and 4945 transitions. [2018-11-12 16:48:31,990 INFO L78 Accepts]: Start accepts. Automaton has 3994 states and 4945 transitions. Word has length 476 [2018-11-12 16:48:31,991 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-12 16:48:31,991 INFO L480 AbstractCegarLoop]: Abstraction has 3994 states and 4945 transitions. [2018-11-12 16:48:31,991 INFO L481 AbstractCegarLoop]: Interpolant automaton has 18 states. [2018-11-12 16:48:31,991 INFO L276 IsEmpty]: Start isEmpty. Operand 3994 states and 4945 transitions. [2018-11-12 16:48:32,006 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 485 [2018-11-12 16:48:32,007 INFO L367 BasicCegarLoop]: Found error trace [2018-11-12 16:48:32,007 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, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 16:48:32,007 INFO L423 AbstractCegarLoop]: === Iteration 7 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-12 16:48:32,008 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-12 16:48:32,008 INFO L82 PathProgramCache]: Analyzing trace with hash -393135270, now seen corresponding path program 1 times [2018-11-12 16:48:32,008 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-12 16:48:32,009 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-12 16:48:32,009 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-12 16:48:32,009 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-12 16:48:32,009 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-12 16:48:32,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-12 16:48:32,423 WARN L179 SmtUtils]: Spent 164.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 4 [2018-11-12 16:48:32,705 INFO L134 CoverageAnalysis]: Checked inductivity of 372 backedges. 81 proven. 217 refuted. 0 times theorem prover too weak. 74 trivial. 0 not checked. [2018-11-12 16:48:32,705 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-12 16:48:32,706 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-12 16:48:32,706 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 485 with the following transitions: [2018-11-12 16:48:32,706 INFO L202 CegarAbsIntRunner]: [0], [1], [180], [187], [195], [203], [211], [219], [227], [235], [243], [251], [259], [267], [275], [283], [291], [299], [307], [315], [323], [331], [335], [337], [340], [348], [356], [364], [372], [380], [388], [396], [404], [412], [420], [428], [436], [444], [452], [460], [468], [476], [484], [492], [500], [508], [516], [524], [532], [540], [548], [556], [564], [572], [580], [588], [596], [604], [612], [620], [628], [636], [644], [652], [660], [668], [673], [677], [681], [685], [689], [693], [697], [701], [705], [709], [713], [717], [721], [725], [729], [733], [737], [741], [745], [749], [753], [757], [761], [764], [765], [769], [773], [777], [781], [785], [789], [793], [797], [801], [805], [809], [813], [817], [821], [825], [829], [833], [836], [837], [841], [845], [849], [853], [857], [861], [865], [869], [873], [877], [881], [885], [889], [893], [897], [901], [905], [909], [913], [917], [921], [925], [929], [933], [937], [941], [945], [949], [953], [957], [961], [965], [969], [973], [977], [981], [985], [989], [993], [997], [1001], [1005], [1009], [1013], [1017], [1021], [1025], [1029], [1033], [1037], [1041], [1045], [1049], [1053], [1057], [1061], [1065], [1069], [1073], [1077], [1081], [1085], [1089], [1093], [1097], [1101], [1105], [1109], [1113], [1117], [1121], [1125], [1129], [1133], [1137], [1141], [1145], [1149], [1153], [1157], [1161], [1165], [1169], [1173], [1177], [1181], [1185], [1189], [1193], [1197], [1201], [1205], [1209], [1213], [1217], [1221], [1225], [1229], [1233], [1237], [1241], [1245], [1249], [1253], [1257], [1261], [1265], [1269], [1273], [1277], [1281], [1285], [1289], [1293], [1297], [1301], [1305], [1309], [1313], [1317], [1321], [1325], [1329], [1333], [1337], [1341], [1345], [1349], [1353], [1357], [1361], [1365], [1369], [1373], [1377], [1381], [1384], [1552], [1556], [1560], [1566], [1570], [1572], [1579], [1580], [1581], [1583], [1584] [2018-11-12 16:48:32,711 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, IntervalDomain] [2018-11-12 16:48:32,711 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-12 16:48:35,589 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-11-12 16:48:35,589 INFO L272 AbstractInterpreter]: Visited 257 different actions 2265 times. Merged at 5 different actions 40 times. Widened at 1 different actions 4 times. Performed 40018 root evaluator evaluations with a maximum evaluation depth of 6. Performed 40018 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 16:48:35,591 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-12 16:48:35,592 INFO L398 sIntCurrentIteration]: Generating AbsInt predicates [2018-11-12 16:48:36,189 INFO L227 lantSequenceWeakener]: Weakened 131 states. On average, predicates are now at 78.11% of their original sizes. [2018-11-12 16:48:36,190 INFO L413 sIntCurrentIteration]: Unifying AI predicates [2018-11-12 16:48:36,640 INFO L415 sIntCurrentIteration]: We unified 483 AI predicates to 483 [2018-11-12 16:48:36,640 INFO L424 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-11-12 16:48:36,641 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-11-12 16:48:36,641 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [23] imperfect sequences [6] total 27 [2018-11-12 16:48:36,641 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-12 16:48:36,644 INFO L459 AbstractCegarLoop]: Interpolant automaton has 23 states [2018-11-12 16:48:36,644 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2018-11-12 16:48:36,644 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=118, Invalid=388, Unknown=0, NotChecked=0, Total=506 [2018-11-12 16:48:36,645 INFO L87 Difference]: Start difference. First operand 3994 states and 4945 transitions. Second operand 23 states. [2018-11-12 16:48:38,819 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-11-12 16:48:56,647 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-12 16:48:56,647 INFO L93 Difference]: Finished difference Result 6740 states and 9001 transitions. [2018-11-12 16:48:56,647 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2018-11-12 16:48:56,648 INFO L78 Accepts]: Start accepts. Automaton has 23 states. Word has length 484 [2018-11-12 16:48:56,649 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-12 16:48:56,666 INFO L225 Difference]: With dead ends: 6740 [2018-11-12 16:48:56,666 INFO L226 Difference]: Without dead ends: 4635 [2018-11-12 16:48:56,673 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 496 GetRequests, 462 SyntacticMatches, 0 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 350 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=259, Invalid=1001, Unknown=0, NotChecked=0, Total=1260 [2018-11-12 16:48:56,677 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4635 states. [2018-11-12 16:48:56,777 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4635 to 4627. [2018-11-12 16:48:56,777 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4627 states. [2018-11-12 16:48:56,786 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4627 states to 4627 states and 5616 transitions. [2018-11-12 16:48:56,786 INFO L78 Accepts]: Start accepts. Automaton has 4627 states and 5616 transitions. Word has length 484 [2018-11-12 16:48:56,787 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-12 16:48:56,787 INFO L480 AbstractCegarLoop]: Abstraction has 4627 states and 5616 transitions. [2018-11-12 16:48:56,787 INFO L481 AbstractCegarLoop]: Interpolant automaton has 23 states. [2018-11-12 16:48:56,788 INFO L276 IsEmpty]: Start isEmpty. Operand 4627 states and 5616 transitions. [2018-11-12 16:48:56,807 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 569 [2018-11-12 16:48:56,808 INFO L367 BasicCegarLoop]: Found error trace [2018-11-12 16:48:56,808 INFO L375 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 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] [2018-11-12 16:48:56,809 INFO L423 AbstractCegarLoop]: === Iteration 8 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-12 16:48:56,809 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-12 16:48:56,809 INFO L82 PathProgramCache]: Analyzing trace with hash -746085396, now seen corresponding path program 1 times [2018-11-12 16:48:56,809 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-12 16:48:56,810 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-12 16:48:56,810 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-12 16:48:56,810 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-12 16:48:56,811 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-12 16:48:56,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-12 16:48:57,645 WARN L179 SmtUtils]: Spent 271.00 ms on a formula simplification that was a NOOP. DAG size: 19 [2018-11-12 16:48:57,965 WARN L179 SmtUtils]: Spent 216.00 ms on a formula simplification that was a NOOP. DAG size: 23 [2018-11-12 16:48:58,919 INFO L134 CoverageAnalysis]: Checked inductivity of 673 backedges. 200 proven. 200 refuted. 0 times theorem prover too weak. 273 trivial. 0 not checked. [2018-11-12 16:48:58,919 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-12 16:48:58,919 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-12 16:48:58,920 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 569 with the following transitions: [2018-11-12 16:48:58,920 INFO L202 CegarAbsIntRunner]: [0], [1], [180], [187], [195], [203], [211], [219], [227], [235], [243], [251], [259], [267], [275], [283], [291], [299], [307], [315], [323], [331], [335], [337], [340], [348], [356], [364], [372], [380], [388], [396], [404], [412], [420], [428], [436], [444], [452], [460], [468], [476], [484], [492], [500], [508], [516], [524], [532], [540], [548], [556], [564], [572], [580], [588], [596], [604], [612], [620], [628], [636], [644], [652], [660], [668], [673], [677], [681], [685], [689], [693], [697], [701], [705], [709], [713], [717], [721], [725], [729], [733], [737], [741], [745], [749], [753], [757], [760], [761], [764], [765], [769], [773], [777], [781], [785], [789], [793], [797], [801], [805], [809], [813], [817], [821], [825], [829], [833], [836], [837], [841], [845], [849], [853], [857], [861], [865], [869], [873], [877], [881], [885], [889], [893], [897], [901], [905], [909], [913], [917], [921], [925], [929], [933], [937], [941], [945], [949], [953], [957], [961], [965], [969], [973], [977], [981], [985], [989], [993], [997], [1001], [1005], [1009], [1013], [1017], [1021], [1025], [1029], [1033], [1037], [1041], [1045], [1049], [1053], [1057], [1061], [1065], [1069], [1073], [1077], [1081], [1085], [1089], [1093], [1097], [1101], [1105], [1109], [1113], [1117], [1121], [1125], [1129], [1133], [1137], [1141], [1145], [1149], [1153], [1157], [1161], [1165], [1169], [1173], [1177], [1181], [1185], [1189], [1193], [1197], [1201], [1205], [1209], [1213], [1217], [1221], [1225], [1229], [1233], [1237], [1241], [1245], [1249], [1253], [1257], [1261], [1265], [1269], [1273], [1277], [1281], [1285], [1289], [1293], [1297], [1301], [1305], [1309], [1313], [1317], [1321], [1325], [1329], [1333], [1337], [1341], [1345], [1349], [1352], [1552], [1556], [1560], [1566], [1570], [1572], [1579], [1580], [1581], [1583], [1584] [2018-11-12 16:48:58,924 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, IntervalDomain] [2018-11-12 16:48:58,924 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-12 16:48:59,010 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-11-12 16:49:00,332 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-11-12 16:49:00,332 INFO L272 AbstractInterpreter]: Visited 250 different actions 992 times. Merged at 7 different actions 25 times. Never widened. Performed 16427 root evaluator evaluations with a maximum evaluation depth of 6. Performed 16427 inverse root evaluator evaluations with a maximum inverse evaluation depth of 6. Found 5 fixpoints after 2 different actions. Largest state had 24 variables. [2018-11-12 16:49:00,339 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-12 16:49:00,339 INFO L398 sIntCurrentIteration]: Generating AbsInt predicates [2018-11-12 16:49:00,826 INFO L227 lantSequenceWeakener]: Weakened 565 states. On average, predicates are now at 77.44% of their original sizes. [2018-11-12 16:49:00,826 INFO L413 sIntCurrentIteration]: Unifying AI predicates [2018-11-12 16:49:00,922 INFO L415 sIntCurrentIteration]: We unified 567 AI predicates to 567 [2018-11-12 16:49:00,922 INFO L424 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-11-12 16:49:00,923 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-11-12 16:49:00,923 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [10] imperfect sequences [13] total 21 [2018-11-12 16:49:00,923 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-12 16:49:00,924 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2018-11-12 16:49:00,924 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2018-11-12 16:49:00,924 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2018-11-12 16:49:00,924 INFO L87 Difference]: Start difference. First operand 4627 states and 5616 transitions. Second operand 10 states. Received shutdown request... [2018-11-12 16:49:09,946 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2018-11-12 16:49:09,947 WARN L549 AbstractCegarLoop]: Verification canceled [2018-11-12 16:49:09,952 WARN L205 ceAbstractionStarter]: Timeout [2018-11-12 16:49:09,952 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 12.11 04:49:09 BoogieIcfgContainer [2018-11-12 16:49:09,952 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-11-12 16:49:09,953 INFO L168 Benchmark]: Toolchain (without parser) took 220840.71 ms. Allocated memory was 1.5 GB in the beginning and 4.9 GB in the end (delta: 3.3 GB). Free memory was 1.4 GB in the beginning and 1.3 GB in the end (delta: 102.6 MB). Peak memory consumption was 3.4 GB. Max. memory is 7.1 GB. [2018-11-12 16:49:09,954 INFO L168 Benchmark]: CDTParser took 0.26 ms. Allocated memory is still 1.5 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-11-12 16:49:09,955 INFO L168 Benchmark]: CACSL2BoogieTranslator took 1150.56 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: 84.6 MB). Peak memory consumption was 84.6 MB. Max. memory is 7.1 GB. [2018-11-12 16:49:09,955 INFO L168 Benchmark]: Boogie Procedure Inliner took 199.09 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 755.0 MB). Free memory was 1.3 GB in the beginning and 2.2 GB in the end (delta: -896.2 MB). Peak memory consumption was 26.9 MB. Max. memory is 7.1 GB. [2018-11-12 16:49:09,956 INFO L168 Benchmark]: Boogie Preprocessor took 150.79 ms. Allocated memory is still 2.3 GB. Free memory was 2.2 GB in the beginning and 2.2 GB in the end (delta: 13.5 MB). Peak memory consumption was 13.5 MB. Max. memory is 7.1 GB. [2018-11-12 16:49:09,957 INFO L168 Benchmark]: RCFGBuilder took 6716.06 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: 266.4 MB). Peak memory consumption was 266.4 MB. Max. memory is 7.1 GB. [2018-11-12 16:49:09,958 INFO L168 Benchmark]: TraceAbstraction took 212618.66 ms. Allocated memory was 2.3 GB in the beginning and 4.9 GB in the end (delta: 2.6 GB). Free memory was 2.0 GB in the beginning and 1.3 GB in the end (delta: 634.3 MB). Peak memory consumption was 3.2 GB. Max. memory is 7.1 GB. [2018-11-12 16:49:09,963 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.26 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 1150.56 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: 84.6 MB). Peak memory consumption was 84.6 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 199.09 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 755.0 MB). Free memory was 1.3 GB in the beginning and 2.2 GB in the end (delta: -896.2 MB). Peak memory consumption was 26.9 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 150.79 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 6716.06 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: 266.4 MB). Peak memory consumption was 266.4 MB. Max. memory is 7.1 GB. * TraceAbstraction took 212618.66 ms. Allocated memory was 2.3 GB in the beginning and 4.9 GB in the end (delta: 2.6 GB). Free memory was 2.0 GB in the beginning and 1.3 GB in the end (delta: 634.3 MB). Peak memory consumption was 3.2 GB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResultAtElement [Line: 82]: Timeout (TraceAbstraction) Unable to prove that call of __VERIFIER_error() unreachable (line 82). Cancelled while BasicCegarLoop was constructing difference of abstraction (4627states) and FLOYD_HOARE automaton (currently 17 states, 10 states before enhancement),while ReachableStatesComputation was computing reachable states (5490 states constructedinput type IntersectNwa). - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 410 locations, 1 error locations. TIMEOUT Result, 212.5s OverallTime, 8 OverallIterations, 5 TraceHistogramMax, 187.1s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 2562 SDtfs, 19606 SDslu, 1814 SDs, 0 SdLazy, 29771 SolverSat, 4027 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 72.8s Time, PredicateUnifierStatistics: 12 DeclaredPredicates, 2525 GetRequests, 2300 SyntacticMatches, 73 SemanticMatches, 152 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1278 ImplicationChecksByTransitivity, 7.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=4627occurred in iteration=7, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 7.6s AbstIntTime, 6 AbstIntIterations, 6 AbstIntStrong, 0.9976125253037418 AbsIntWeakeningRatio, 0.0783673469387755 AbsIntAvgWeakeningVarsNumRemoved, 13.713061224489795 AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.6s AutomataMinimizationTime, 7 MinimizatonAttempts, 501 StatesRemovedByMinimization, 6 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.1s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 4.7s InterpolantComputationTime, 2613 NumberOfCodeBlocks, 2613 NumberOfCodeBlocksAsserted, 8 NumberOfCheckSat, 2605 ConstructedInterpolants, 0 QuantifiedInterpolants, 6143021 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 8 InterpolantComputations, 2 PerfectInterpolantSequences, 1173/2309 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Completed graceful shutdown