java -Xmx8000000000 -jar /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -s ../../../trunk/examples/settings/default/taipan/svcomp-Reach-64bit-Taipan_Default.epf -i ../../../trunk/examples/svcomp/eca-rers2012/Problem17_label01_true-unreach-call.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-d380424 [2018-10-24 22:04:30,251 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-10-24 22:04:30,254 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-10-24 22:04:30,266 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-10-24 22:04:30,267 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-10-24 22:04:30,268 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-10-24 22:04:30,269 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-10-24 22:04:30,271 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-10-24 22:04:30,273 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-10-24 22:04:30,274 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-10-24 22:04:30,275 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-10-24 22:04:30,275 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-10-24 22:04:30,276 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-10-24 22:04:30,277 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-10-24 22:04:30,280 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-10-24 22:04:30,280 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-10-24 22:04:30,283 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-10-24 22:04:30,285 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-10-24 22:04:30,290 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-10-24 22:04:30,294 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-10-24 22:04:30,296 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-10-24 22:04:30,299 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-10-24 22:04:30,304 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-10-24 22:04:30,304 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-10-24 22:04:30,305 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-10-24 22:04:30,306 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-10-24 22:04:30,310 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-10-24 22:04:30,311 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-10-24 22:04:30,312 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-10-24 22:04:30,316 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-10-24 22:04:30,316 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-10-24 22:04:30,317 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-10-24 22:04:30,317 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-10-24 22:04:30,317 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-10-24 22:04:30,319 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-10-24 22:04:30,320 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-10-24 22:04:30,321 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/../../../trunk/examples/settings/default/taipan/svcomp-Reach-64bit-Taipan_Default.epf [2018-10-24 22:04:30,348 INFO L110 SettingsManager]: Loading preferences was successful [2018-10-24 22:04:30,349 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-10-24 22:04:30,350 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-10-24 22:04:30,350 INFO L133 SettingsManager]: * User list type=DISABLED [2018-10-24 22:04:30,350 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-10-24 22:04:30,350 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-10-24 22:04:30,350 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-10-24 22:04:30,351 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-10-24 22:04:30,351 INFO L133 SettingsManager]: * Log string format=TERM [2018-10-24 22:04:30,351 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-10-24 22:04:30,352 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-10-24 22:04:30,352 INFO L133 SettingsManager]: * Interval Domain=false [2018-10-24 22:04:30,352 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-10-24 22:04:30,353 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-10-24 22:04:30,353 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-10-24 22:04:30,353 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-10-24 22:04:30,353 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-10-24 22:04:30,353 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-10-24 22:04:30,354 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-10-24 22:04:30,355 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-10-24 22:04:30,356 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-10-24 22:04:30,356 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-10-24 22:04:30,356 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-10-24 22:04:30,356 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-10-24 22:04:30,356 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-10-24 22:04:30,357 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-10-24 22:04:30,357 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-10-24 22:04:30,357 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-10-24 22:04:30,357 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-10-24 22:04:30,358 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-10-24 22:04:30,358 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-10-24 22:04:30,358 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-10-24 22:04:30,358 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-10-24 22:04:30,358 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-10-24 22:04:30,420 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-10-24 22:04:30,439 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-10-24 22:04:30,443 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-10-24 22:04:30,444 INFO L271 PluginConnector]: Initializing CDTParser... [2018-10-24 22:04:30,444 INFO L276 PluginConnector]: CDTParser initialized [2018-10-24 22:04:30,445 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem17_label01_true-unreach-call.c [2018-10-24 22:04:30,503 INFO L218 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/16a9c4f53/e4576334f99a4551868c63e7fa708f89/FLAGc735c5d11 [2018-10-24 22:04:31,192 INFO L298 CDTParser]: Found 1 translation units. [2018-10-24 22:04:31,193 INFO L158 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem17_label01_true-unreach-call.c [2018-10-24 22:04:31,223 INFO L346 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/16a9c4f53/e4576334f99a4551868c63e7fa708f89/FLAGc735c5d11 [2018-10-24 22:04:31,244 INFO L354 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/16a9c4f53/e4576334f99a4551868c63e7fa708f89 [2018-10-24 22:04:31,259 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-10-24 22:04:31,260 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-10-24 22:04:31,262 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-10-24 22:04:31,262 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-10-24 22:04:31,268 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-10-24 22:04:31,269 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 10:04:31" (1/1) ... [2018-10-24 22:04:31,273 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@31151419 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 10:04:31, skipping insertion in model container [2018-10-24 22:04:31,274 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 10:04:31" (1/1) ... [2018-10-24 22:04:31,285 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-10-24 22:04:31,414 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-10-24 22:04:32,428 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-24 22:04:32,433 INFO L189 MainTranslator]: Completed pre-run [2018-10-24 22:04:32,837 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-24 22:04:32,860 INFO L193 MainTranslator]: Completed translation [2018-10-24 22:04:32,861 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 10:04:32 WrapperNode [2018-10-24 22:04:32,861 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-10-24 22:04:32,862 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-10-24 22:04:32,862 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-10-24 22:04:32,863 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-10-24 22:04:32,873 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 10:04:32" (1/1) ... [2018-10-24 22:04:32,924 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 10:04:32" (1/1) ... [2018-10-24 22:04:33,396 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-10-24 22:04:33,397 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-10-24 22:04:33,397 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-10-24 22:04:33,397 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-10-24 22:04:33,409 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 10:04:32" (1/1) ... [2018-10-24 22:04:33,410 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 10:04:32" (1/1) ... [2018-10-24 22:04:33,439 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 10:04:32" (1/1) ... [2018-10-24 22:04:33,439 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 10:04:32" (1/1) ... [2018-10-24 22:04:33,551 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 10:04:32" (1/1) ... [2018-10-24 22:04:33,574 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 10:04:32" (1/1) ... [2018-10-24 22:04:33,632 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 10:04:32" (1/1) ... [2018-10-24 22:04:33,681 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-10-24 22:04:33,682 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-10-24 22:04:33,682 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-10-24 22:04:33,682 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-10-24 22:04:33,683 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 10:04:32" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-10-24 22:04:33,753 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-10-24 22:04:33,753 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-10-24 22:04:33,754 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output2 [2018-10-24 22:04:33,754 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output2 [2018-10-24 22:04:33,754 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2018-10-24 22:04:33,754 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2018-10-24 22:04:33,754 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-10-24 22:04:33,755 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-10-24 22:04:33,755 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-10-24 22:04:33,755 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-10-24 22:04:45,929 INFO L341 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-10-24 22:04:45,930 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 10:04:45 BoogieIcfgContainer [2018-10-24 22:04:45,930 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-10-24 22:04:45,933 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-10-24 22:04:45,933 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-10-24 22:04:45,937 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-10-24 22:04:45,937 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.10 10:04:31" (1/3) ... [2018-10-24 22:04:45,938 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@55cca701 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 10:04:45, skipping insertion in model container [2018-10-24 22:04:45,938 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 10:04:32" (2/3) ... [2018-10-24 22:04:45,939 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@55cca701 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 10:04:45, skipping insertion in model container [2018-10-24 22:04:45,939 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 10:04:45" (3/3) ... [2018-10-24 22:04:45,941 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem17_label01_true-unreach-call.c [2018-10-24 22:04:45,952 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-10-24 22:04:45,961 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-10-24 22:04:45,976 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-10-24 22:04:46,030 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-10-24 22:04:46,031 INFO L383 AbstractCegarLoop]: Hoare is true [2018-10-24 22:04:46,031 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-10-24 22:04:46,031 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-10-24 22:04:46,031 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-10-24 22:04:46,031 INFO L387 AbstractCegarLoop]: Difference is false [2018-10-24 22:04:46,032 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-10-24 22:04:46,032 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-10-24 22:04:46,070 INFO L276 IsEmpty]: Start isEmpty. Operand 604 states. [2018-10-24 22:04:46,079 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2018-10-24 22:04:46,080 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 22:04:46,081 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] [2018-10-24 22:04:46,083 INFO L424 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 22:04:46,090 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 22:04:46,091 INFO L82 PathProgramCache]: Analyzing trace with hash -412274706, now seen corresponding path program 1 times [2018-10-24 22:04:46,094 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-24 22:04:46,144 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 22:04:46,144 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 22:04:46,144 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 22:04:46,144 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-24 22:04:46,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 22:04:46,620 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-24 22:04:46,623 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-24 22:04:46,623 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-10-24 22:04:46,623 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-24 22:04:46,630 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-10-24 22:04:46,646 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-10-24 22:04:46,647 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-24 22:04:46,649 INFO L87 Difference]: Start difference. First operand 604 states. Second operand 4 states. [2018-10-24 22:04:59,148 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 22:04:59,149 INFO L93 Difference]: Finished difference Result 2139 states and 3961 transitions. [2018-10-24 22:04:59,149 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-10-24 22:04:59,151 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 53 [2018-10-24 22:04:59,151 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 22:04:59,182 INFO L225 Difference]: With dead ends: 2139 [2018-10-24 22:04:59,182 INFO L226 Difference]: Without dead ends: 1529 [2018-10-24 22:04:59,194 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-24 22:04:59,214 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1529 states. [2018-10-24 22:04:59,333 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1529 to 1527. [2018-10-24 22:04:59,334 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1527 states. [2018-10-24 22:04:59,346 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1527 states to 1527 states and 2413 transitions. [2018-10-24 22:04:59,348 INFO L78 Accepts]: Start accepts. Automaton has 1527 states and 2413 transitions. Word has length 53 [2018-10-24 22:04:59,349 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 22:04:59,349 INFO L481 AbstractCegarLoop]: Abstraction has 1527 states and 2413 transitions. [2018-10-24 22:04:59,349 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-10-24 22:04:59,349 INFO L276 IsEmpty]: Start isEmpty. Operand 1527 states and 2413 transitions. [2018-10-24 22:04:59,357 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 129 [2018-10-24 22:04:59,357 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 22:04:59,358 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-24 22:04:59,359 INFO L424 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 22:04:59,360 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 22:04:59,360 INFO L82 PathProgramCache]: Analyzing trace with hash 1326175065, now seen corresponding path program 1 times [2018-10-24 22:04:59,360 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-24 22:04:59,361 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 22:04:59,364 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 22:04:59,364 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 22:04:59,364 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-24 22:04:59,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 22:04:59,761 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 0 proven. 46 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-24 22:04:59,761 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-24 22:04:59,762 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-10-24 22:04:59,763 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 129 with the following transitions: [2018-10-24 22:04:59,765 INFO L202 CegarAbsIntRunner]: [0], [1], [711], [718], [726], [734], [742], [750], [758], [766], [774], [782], [790], [798], [806], [814], [822], [830], [838], [846], [854], [862], [870], [878], [886], [894], [902], [910], [918], [926], [934], [942], [950], [958], [966], [974], [982], [990], [998], [1006], [1014], [1022], [1030], [1034], [1036], [1039], [1047], [1055], [1063], [1071], [1079], [1087], [1095], [1103], [1111], [1119], [1127], [1135], [1143], [1151], [1159], [1167], [1175], [1183], [1191], [1199], [1204], [1208], [1212], [1216], [1220], [1223], [2279], [2283], [2287], [2293], [2297], [2299], [2306], [2307], [2308], [2310], [2311] [2018-10-24 22:04:59,858 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-10-24 22:04:59,858 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-10-24 22:05:01,675 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-10-24 22:05:20,556 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-10-24 22:05:20,558 INFO L272 AbstractInterpreter]: Visited 82 different actions 538 times. Merged at 5 different actions 30 times. Widened at 1 different actions 2 times. Found 1 fixpoints after 1 different actions. Largest state had 26 variables. [2018-10-24 22:05:20,575 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 22:05:20,575 INFO L398 sIntCurrentIteration]: Generating AbsInt predicates [2018-10-24 22:05:22,901 INFO L232 lantSequenceWeakener]: Weakened 4 states. On average, predicates are now at 84.38% of their original sizes. [2018-10-24 22:05:22,901 INFO L411 sIntCurrentIteration]: Unifying AI predicates [2018-10-24 22:06:02,014 INFO L413 sIntCurrentIteration]: We have 127 unified AI predicates [2018-10-24 22:06:02,015 INFO L422 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-10-24 22:06:02,016 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-10-24 22:06:02,016 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [20] imperfect sequences [7] total 25 [2018-10-24 22:06:02,016 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-24 22:06:02,018 INFO L460 AbstractCegarLoop]: Interpolant automaton has 20 states [2018-10-24 22:06:02,018 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2018-10-24 22:06:02,019 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=73, Invalid=307, Unknown=0, NotChecked=0, Total=380 [2018-10-24 22:06:02,019 INFO L87 Difference]: Start difference. First operand 1527 states and 2413 transitions. Second operand 20 states. Received shutdown request... [2018-10-24 22:08:44,233 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2018-10-24 22:08:44,234 WARN L550 AbstractCegarLoop]: Verification canceled [2018-10-24 22:08:44,238 WARN L205 ceAbstractionStarter]: Timeout [2018-10-24 22:08:44,238 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.10 10:08:44 BoogieIcfgContainer [2018-10-24 22:08:44,238 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-10-24 22:08:44,239 INFO L168 Benchmark]: Toolchain (without parser) took 252980.27 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 3.1 GB in the end (delta: -1.7 GB). Peak memory consumption was 995.2 MB. Max. memory is 7.1 GB. [2018-10-24 22:08:44,241 INFO L168 Benchmark]: CDTParser took 0.16 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. [2018-10-24 22:08:44,242 INFO L168 Benchmark]: CACSL2BoogieTranslator took 1600.13 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: 137.4 MB). Peak memory consumption was 137.4 MB. Max. memory is 7.1 GB. [2018-10-24 22:08:44,243 INFO L168 Benchmark]: Boogie Procedure Inliner took 534.13 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 793.8 MB). Free memory was 1.3 GB in the beginning and 2.2 GB in the end (delta: -944.6 MB). Peak memory consumption was 56.1 MB. Max. memory is 7.1 GB. [2018-10-24 22:08:44,244 INFO L168 Benchmark]: Boogie Preprocessor took 284.76 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: 28.7 MB). Peak memory consumption was 28.7 MB. Max. memory is 7.1 GB. [2018-10-24 22:08:44,244 INFO L168 Benchmark]: RCFGBuilder took 12250.33 ms. Allocated memory is still 2.3 GB. Free memory was 2.2 GB in the beginning and 1.7 GB in the end (delta: 475.1 MB). Peak memory consumption was 475.1 MB. Max. memory is 7.1 GB. [2018-10-24 22:08:44,245 INFO L168 Benchmark]: TraceAbstraction took 238305.38 ms. Allocated memory was 2.3 GB in the beginning and 4.2 GB in the end (delta: 1.9 GB). Free memory was 1.7 GB in the beginning and 3.1 GB in the end (delta: -1.4 GB). Peak memory consumption was 504.9 MB. Max. memory is 7.1 GB. [2018-10-24 22:08:44,251 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16 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 1600.13 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: 137.4 MB). Peak memory consumption was 137.4 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 534.13 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 793.8 MB). Free memory was 1.3 GB in the beginning and 2.2 GB in the end (delta: -944.6 MB). Peak memory consumption was 56.1 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 284.76 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: 28.7 MB). Peak memory consumption was 28.7 MB. Max. memory is 7.1 GB. * RCFGBuilder took 12250.33 ms. Allocated memory is still 2.3 GB. Free memory was 2.2 GB in the beginning and 1.7 GB in the end (delta: 475.1 MB). Peak memory consumption was 475.1 MB. Max. memory is 7.1 GB. * TraceAbstraction took 238305.38 ms. Allocated memory was 2.3 GB in the beginning and 4.2 GB in the end (delta: 1.9 GB). Free memory was 1.7 GB in the beginning and 3.1 GB in the end (delta: -1.4 GB). Peak memory consumption was 504.9 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResultAtElement [Line: 146]: Timeout (TraceAbstraction) Unable to prove that call of __VERIFIER_error() unreachable (line 146). Cancelled while BasicCegarLoop was constructing difference of abstraction (1527states) and FLOYD_HOARE automaton (currently 20 states, 20 states before enhancement),while ReachableStatesComputation was computing reachable states (527 states constructedinput type IntersectNwa). - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 604 locations, 1 error locations. TIMEOUT Result, 238.2s OverallTime, 2 OverallIterations, 2 TraceHistogramMax, 174.7s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 571 SDtfs, 2216 SDslu, 292 SDs, 0 SdLazy, 4013 SolverSat, 874 SolverUnsat, 1 SolverUnknown, 0 SolverNotchecked, 74.2s Time, PredicateUnifierStatistics: 2 DeclaredPredicates, 148 GetRequests, 95 SyntacticMatches, 18 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 416 ImplicationChecksByTransitivity, 48.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1527occurred in iteration=1, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 20.8s AbstIntTime, 1 AbstIntIterations, 1 AbstIntStrong, 0.9929860690490613 AbsIntWeakeningRatio, 0.16535433070866143 AbsIntAvgWeakeningVarsNumRemoved, 792.7716535433071 AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 1 MinimizatonAttempts, 2 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.6s InterpolantComputationTime, 181 NumberOfCodeBlocks, 181 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 179 ConstructedInterpolants, 0 QuantifiedInterpolants, 67447 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 2 InterpolantComputations, 1 PerfectInterpolantSequences, 0/46 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Completed graceful shutdown