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_label10_true-unreach-call.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-d380424 [2018-10-24 22:06:26,215 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-10-24 22:06:26,218 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-10-24 22:06:26,233 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-10-24 22:06:26,234 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-10-24 22:06:26,235 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-10-24 22:06:26,237 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-10-24 22:06:26,239 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-10-24 22:06:26,241 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-10-24 22:06:26,242 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-10-24 22:06:26,243 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-10-24 22:06:26,244 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-10-24 22:06:26,246 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-10-24 22:06:26,249 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-10-24 22:06:26,250 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-10-24 22:06:26,251 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-10-24 22:06:26,259 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-10-24 22:06:26,261 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-10-24 22:06:26,263 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-10-24 22:06:26,265 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-10-24 22:06:26,269 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-10-24 22:06:26,270 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-10-24 22:06:26,272 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-10-24 22:06:26,272 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-10-24 22:06:26,273 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-10-24 22:06:26,275 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-10-24 22:06:26,276 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-10-24 22:06:26,277 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-10-24 22:06:26,278 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-10-24 22:06:26,282 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-10-24 22:06:26,283 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-10-24 22:06:26,283 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... 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[2018-10-24 22:06:26,286 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 22:06:26,301 INFO L110 SettingsManager]: Loading preferences was successful [2018-10-24 22:06:26,302 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-10-24 22:06:26,302 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-10-24 22:06:26,303 INFO L133 SettingsManager]: * User list type=DISABLED [2018-10-24 22:06:26,303 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-10-24 22:06:26,303 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-10-24 22:06:26,303 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-10-24 22:06:26,303 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-10-24 22:06:26,303 INFO L133 SettingsManager]: * Log string format=TERM [2018-10-24 22:06:26,304 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-10-24 22:06:26,305 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-10-24 22:06:26,305 INFO L133 SettingsManager]: * Interval Domain=false [2018-10-24 22:06:26,305 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-10-24 22:06:26,306 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-10-24 22:06:26,306 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-10-24 22:06:26,306 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-10-24 22:06:26,306 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-10-24 22:06:26,306 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-10-24 22:06:26,306 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-10-24 22:06:26,308 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-10-24 22:06:26,308 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-10-24 22:06:26,308 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-10-24 22:06:26,309 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-10-24 22:06:26,309 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-10-24 22:06:26,309 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-10-24 22:06:26,309 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-10-24 22:06:26,309 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-10-24 22:06:26,310 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-10-24 22:06:26,310 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-10-24 22:06:26,310 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-10-24 22:06:26,310 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-10-24 22:06:26,310 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-10-24 22:06:26,310 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-10-24 22:06:26,311 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-10-24 22:06:26,371 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-10-24 22:06:26,387 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-10-24 22:06:26,390 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-10-24 22:06:26,391 INFO L271 PluginConnector]: Initializing CDTParser... [2018-10-24 22:06:26,392 INFO L276 PluginConnector]: CDTParser initialized [2018-10-24 22:06:26,393 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem17_label10_true-unreach-call.c [2018-10-24 22:06:26,454 INFO L218 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/4810bdf82/0fd2d9d43acf4ec6958cafaf7f3e87e4/FLAGf5913339c [2018-10-24 22:06:27,129 INFO L298 CDTParser]: Found 1 translation units. [2018-10-24 22:06:27,131 INFO L158 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem17_label10_true-unreach-call.c [2018-10-24 22:06:27,161 INFO L346 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/4810bdf82/0fd2d9d43acf4ec6958cafaf7f3e87e4/FLAGf5913339c [2018-10-24 22:06:27,181 INFO L354 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/4810bdf82/0fd2d9d43acf4ec6958cafaf7f3e87e4 [2018-10-24 22:06:27,195 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-10-24 22:06:27,197 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-10-24 22:06:27,198 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-10-24 22:06:27,199 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-10-24 22:06:27,208 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-10-24 22:06:27,210 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 10:06:27" (1/1) ... [2018-10-24 22:06:27,215 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2f32220e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 10:06:27, skipping insertion in model container [2018-10-24 22:06:27,215 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 10:06:27" (1/1) ... [2018-10-24 22:06:27,227 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-10-24 22:06:27,354 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-10-24 22:06:28,418 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-24 22:06:28,423 INFO L189 MainTranslator]: Completed pre-run [2018-10-24 22:06:28,850 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-24 22:06:28,876 INFO L193 MainTranslator]: Completed translation [2018-10-24 22:06:28,877 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 10:06:28 WrapperNode [2018-10-24 22:06:28,877 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-10-24 22:06:28,878 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-10-24 22:06:28,878 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-10-24 22:06:28,879 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-10-24 22:06:28,890 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 10:06:28" (1/1) ... [2018-10-24 22:06:28,937 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 10:06:28" (1/1) ... [2018-10-24 22:06:29,310 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-10-24 22:06:29,311 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-10-24 22:06:29,311 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-10-24 22:06:29,311 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-10-24 22:06:29,322 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 10:06:28" (1/1) ... [2018-10-24 22:06:29,322 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 10:06:28" (1/1) ... [2018-10-24 22:06:29,351 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 10:06:28" (1/1) ... [2018-10-24 22:06:29,352 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 10:06:28" (1/1) ... [2018-10-24 22:06:29,461 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 10:06:28" (1/1) ... [2018-10-24 22:06:29,485 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 10:06:28" (1/1) ... [2018-10-24 22:06:29,543 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 10:06:28" (1/1) ... [2018-10-24 22:06:29,599 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-10-24 22:06:29,599 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-10-24 22:06:29,600 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-10-24 22:06:29,600 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-10-24 22:06:29,601 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 10:06:28" (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 22:06:29,671 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-10-24 22:06:29,672 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-10-24 22:06:29,672 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output2 [2018-10-24 22:06:29,672 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output2 [2018-10-24 22:06:29,672 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2018-10-24 22:06:29,673 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2018-10-24 22:06:29,673 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-10-24 22:06:29,673 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-10-24 22:06:29,673 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-10-24 22:06:29,673 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-10-24 22:06:42,613 INFO L341 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-10-24 22:06:42,614 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 10:06:42 BoogieIcfgContainer [2018-10-24 22:06:42,614 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-10-24 22:06:42,616 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-10-24 22:06:42,616 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-10-24 22:06:42,622 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-10-24 22:06:42,622 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.10 10:06:27" (1/3) ... [2018-10-24 22:06:42,623 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@444506a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 10:06:42, skipping insertion in model container [2018-10-24 22:06:42,623 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 10:06:28" (2/3) ... [2018-10-24 22:06:42,623 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@444506a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 10:06:42, skipping insertion in model container [2018-10-24 22:06:42,624 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 10:06:42" (3/3) ... [2018-10-24 22:06:42,626 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem17_label10_true-unreach-call.c [2018-10-24 22:06:42,636 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-10-24 22:06:42,645 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-10-24 22:06:42,664 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-10-24 22:06:42,713 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-10-24 22:06:42,713 INFO L383 AbstractCegarLoop]: Hoare is true [2018-10-24 22:06:42,713 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-10-24 22:06:42,713 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-10-24 22:06:42,713 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-10-24 22:06:42,714 INFO L387 AbstractCegarLoop]: Difference is false [2018-10-24 22:06:42,714 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-10-24 22:06:42,714 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-10-24 22:06:42,749 INFO L276 IsEmpty]: Start isEmpty. Operand 604 states. [2018-10-24 22:06:42,758 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2018-10-24 22:06:42,758 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 22:06:42,759 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] [2018-10-24 22:06:42,761 INFO L424 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 22:06:42,768 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 22:06:42,768 INFO L82 PathProgramCache]: Analyzing trace with hash -1853097852, now seen corresponding path program 1 times [2018-10-24 22:06:42,771 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-24 22:06:42,826 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 22:06:42,826 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 22:06:42,826 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 22:06:42,826 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-24 22:06:42,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 22:06:43,323 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 22:06:43,325 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-24 22:06:43,326 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-10-24 22:06:43,326 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-24 22:06:43,332 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-10-24 22:06:43,348 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-10-24 22:06:43,349 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-24 22:06:43,353 INFO L87 Difference]: Start difference. First operand 604 states. Second operand 4 states. [2018-10-24 22:06:56,488 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 22:06:56,489 INFO L93 Difference]: Finished difference Result 2139 states and 3961 transitions. [2018-10-24 22:06:56,489 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-10-24 22:06:56,490 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 46 [2018-10-24 22:06:56,491 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 22:06:56,525 INFO L225 Difference]: With dead ends: 2139 [2018-10-24 22:06:56,525 INFO L226 Difference]: Without dead ends: 1529 [2018-10-24 22:06:56,542 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-24 22:06:56,563 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1529 states. [2018-10-24 22:06:56,687 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1529 to 1527. [2018-10-24 22:06:56,688 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1527 states. [2018-10-24 22:06:56,698 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1527 states to 1527 states and 2413 transitions. [2018-10-24 22:06:56,700 INFO L78 Accepts]: Start accepts. Automaton has 1527 states and 2413 transitions. Word has length 46 [2018-10-24 22:06:56,700 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 22:06:56,700 INFO L481 AbstractCegarLoop]: Abstraction has 1527 states and 2413 transitions. [2018-10-24 22:06:56,701 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-10-24 22:06:56,701 INFO L276 IsEmpty]: Start isEmpty. Operand 1527 states and 2413 transitions. [2018-10-24 22:06:56,707 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2018-10-24 22:06:56,708 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 22:06:56,708 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 22:06:56,708 INFO L424 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 22:06:56,709 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 22:06:56,709 INFO L82 PathProgramCache]: Analyzing trace with hash -180836774, now seen corresponding path program 1 times [2018-10-24 22:06:56,709 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-24 22:06:56,710 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 22:06:56,710 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 22:06:56,710 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 22:06:56,711 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-24 22:06:56,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 22:06:57,174 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 0 proven. 39 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-24 22:06:57,174 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-24 22:06:57,175 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-10-24 22:06:57,176 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 122 with the following transitions: [2018-10-24 22:06:57,178 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], [978], [980], [983], [991], [999], [1007], [1015], [1023], [1031], [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 22:06:57,245 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-10-24 22:06:57,246 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-10-24 22:06:58,724 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-10-24 22:07:17,927 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-10-24 22:07:17,928 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 22:07:17,943 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 22:07:17,943 INFO L398 sIntCurrentIteration]: Generating AbsInt predicates [2018-10-24 22:07:19,903 INFO L232 lantSequenceWeakener]: Weakened 7 states. On average, predicates are now at 82.14% of their original sizes. [2018-10-24 22:07:19,904 INFO L411 sIntCurrentIteration]: Unifying AI predicates [2018-10-24 22:07:48,864 INFO L413 sIntCurrentIteration]: We have 120 unified AI predicates [2018-10-24 22:07:48,865 INFO L422 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-10-24 22:07:48,866 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-10-24 22:07:48,866 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [22] imperfect sequences [7] total 27 [2018-10-24 22:07:48,866 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-24 22:07:48,870 INFO L460 AbstractCegarLoop]: Interpolant automaton has 22 states [2018-10-24 22:07:48,870 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2018-10-24 22:07:48,870 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=92, Invalid=370, Unknown=0, NotChecked=0, Total=462 [2018-10-24 22:07:48,871 INFO L87 Difference]: Start difference. First operand 1527 states and 2413 transitions. Second operand 22 states. Received shutdown request... [2018-10-24 22:10:35,482 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2018-10-24 22:10:35,483 WARN L550 AbstractCegarLoop]: Verification canceled [2018-10-24 22:10:35,488 WARN L205 ceAbstractionStarter]: Timeout [2018-10-24 22:10:35,488 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.10 10:10:35 BoogieIcfgContainer [2018-10-24 22:10:35,489 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-10-24 22:10:35,490 INFO L168 Benchmark]: Toolchain (without parser) took 248293.59 ms. Allocated memory was 1.5 GB in the beginning and 4.2 GB in the end (delta: 2.7 GB). Free memory was 1.4 GB in the beginning and 2.8 GB in the end (delta: -1.4 GB). Peak memory consumption was 1.2 GB. Max. memory is 7.1 GB. [2018-10-24 22:10:35,492 INFO L168 Benchmark]: CDTParser took 0.19 ms. Allocated memory is still 1.5 GB. Free memory is still 1.4 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-10-24 22:10:35,492 INFO L168 Benchmark]: CACSL2BoogieTranslator took 1679.27 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.2 GB in the end (delta: 137.4 MB). Peak memory consumption was 137.4 MB. Max. memory is 7.1 GB. [2018-10-24 22:10:35,493 INFO L168 Benchmark]: Boogie Procedure Inliner took 432.13 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 762.3 MB). Free memory was 1.2 GB in the beginning and 2.2 GB in the end (delta: -911.6 MB). Peak memory consumption was 56.1 MB. Max. memory is 7.1 GB. [2018-10-24 22:10:35,494 INFO L168 Benchmark]: Boogie Preprocessor took 288.52 ms. Allocated memory is still 2.3 GB. Free memory was 2.2 GB in the beginning and 2.1 GB in the end (delta: 28.8 MB). Peak memory consumption was 28.8 MB. Max. memory is 7.1 GB. [2018-10-24 22:10:35,495 INFO L168 Benchmark]: RCFGBuilder took 13016.10 ms. Allocated memory is still 2.3 GB. Free memory was 2.1 GB in the beginning and 1.7 GB in the end (delta: 469.4 MB). Peak memory consumption was 469.4 MB. Max. memory is 7.1 GB. [2018-10-24 22:10:35,496 INFO L168 Benchmark]: TraceAbstraction took 232872.44 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 2.8 GB in the end (delta: -1.2 GB). Peak memory consumption was 761.7 MB. Max. memory is 7.1 GB. [2018-10-24 22:10:35,501 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19 ms. Allocated memory is still 1.5 GB. Free memory is still 1.4 GB. There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 1679.27 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.2 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 432.13 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 762.3 MB). Free memory was 1.2 GB in the beginning and 2.2 GB in the end (delta: -911.6 MB). Peak memory consumption was 56.1 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 288.52 ms. Allocated memory is still 2.3 GB. Free memory was 2.2 GB in the beginning and 2.1 GB in the end (delta: 28.8 MB). Peak memory consumption was 28.8 MB. Max. memory is 7.1 GB. * RCFGBuilder took 13016.10 ms. Allocated memory is still 2.3 GB. Free memory was 2.1 GB in the beginning and 1.7 GB in the end (delta: 469.4 MB). Peak memory consumption was 469.4 MB. Max. memory is 7.1 GB. * TraceAbstraction took 232872.44 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 2.8 GB in the end (delta: -1.2 GB). Peak memory consumption was 761.7 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResultAtElement [Line: 125]: Timeout (TraceAbstraction) Unable to prove that call of __VERIFIER_error() unreachable (line 125). Cancelled while BasicCegarLoop was constructing difference of abstraction (1527states) and FLOYD_HOARE automaton (currently 21 states, 22 states before enhancement),while PredicateComparison was comparing new predicate (quantifier-free) to 38 known predicates. - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 604 locations, 1 error locations. TIMEOUT Result, 232.7s OverallTime, 2 OverallIterations, 2 TraceHistogramMax, 179.8s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 588 SDtfs, 2691 SDslu, 379 SDs, 0 SdLazy, 4140 SolverSat, 908 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 64.7s Time, PredicateUnifierStatistics: 2 DeclaredPredicates, 143 GetRequests, 93 SyntacticMatches, 11 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 424 ImplicationChecksByTransitivity, 39.1s 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, 20.7s AbstIntTime, 1 AbstIntIterations, 1 AbstIntStrong, 0.9925769230769231 AbsIntWeakeningRatio, 0.175 AbsIntAvgWeakeningVarsNumRemoved, 847.375 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, 0.7s InterpolantComputationTime, 167 NumberOfCodeBlocks, 167 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 165 ConstructedInterpolants, 0 QuantifiedInterpolants, 70965 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 2 InterpolantComputations, 1 PerfectInterpolantSequences, 0/39 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Completed graceful shutdown