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/Problem15_label23_false-unreach-call.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-d380424 [2018-10-24 18:37:11,262 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-10-24 18:37:11,267 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-10-24 18:37:11,284 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-10-24 18:37:11,287 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-10-24 18:37:11,289 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-10-24 18:37:11,290 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-10-24 18:37:11,292 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-10-24 18:37:11,295 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-10-24 18:37:11,295 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-10-24 18:37:11,296 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-10-24 18:37:11,297 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-10-24 18:37:11,298 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-10-24 18:37:11,301 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-10-24 18:37:11,304 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-10-24 18:37:11,305 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-10-24 18:37:11,306 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-10-24 18:37:11,314 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-10-24 18:37:11,318 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-10-24 18:37:11,320 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-10-24 18:37:11,324 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-10-24 18:37:11,325 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-10-24 18:37:11,330 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-10-24 18:37:11,331 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-10-24 18:37:11,331 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-10-24 18:37:11,332 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-10-24 18:37:11,333 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-10-24 18:37:11,334 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-10-24 18:37:11,334 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-10-24 18:37:11,335 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-10-24 18:37:11,338 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-10-24 18:37:11,339 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-10-24 18:37:11,339 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-10-24 18:37:11,339 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-10-24 18:37:11,340 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-10-24 18:37:11,343 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-10-24 18:37:11,343 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 18:37:11,371 INFO L110 SettingsManager]: Loading preferences was successful [2018-10-24 18:37:11,372 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-10-24 18:37:11,373 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-10-24 18:37:11,374 INFO L133 SettingsManager]: * User list type=DISABLED [2018-10-24 18:37:11,374 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-10-24 18:37:11,374 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-10-24 18:37:11,374 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-10-24 18:37:11,375 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-10-24 18:37:11,375 INFO L133 SettingsManager]: * Log string format=TERM [2018-10-24 18:37:11,375 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-10-24 18:37:11,376 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-10-24 18:37:11,376 INFO L133 SettingsManager]: * Interval Domain=false [2018-10-24 18:37:11,377 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-10-24 18:37:11,378 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-10-24 18:37:11,378 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-10-24 18:37:11,378 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-10-24 18:37:11,378 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-10-24 18:37:11,379 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-10-24 18:37:11,379 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-10-24 18:37:11,379 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-10-24 18:37:11,379 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-10-24 18:37:11,379 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-10-24 18:37:11,380 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-10-24 18:37:11,381 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-10-24 18:37:11,381 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-10-24 18:37:11,381 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-10-24 18:37:11,381 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-10-24 18:37:11,382 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-10-24 18:37:11,382 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-10-24 18:37:11,382 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-10-24 18:37:11,382 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-10-24 18:37:11,382 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-10-24 18:37:11,383 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-10-24 18:37:11,383 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-10-24 18:37:11,453 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-10-24 18:37:11,471 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-10-24 18:37:11,476 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-10-24 18:37:11,477 INFO L271 PluginConnector]: Initializing CDTParser... [2018-10-24 18:37:11,478 INFO L276 PluginConnector]: CDTParser initialized [2018-10-24 18:37:11,479 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem15_label23_false-unreach-call.c [2018-10-24 18:37:11,552 INFO L218 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/c98b362f0/8ba0d4c1cd7f48a29a153582d72c323f/FLAG90fd7b2f3 [2018-10-24 18:37:12,219 INFO L298 CDTParser]: Found 1 translation units. [2018-10-24 18:37:12,221 INFO L158 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem15_label23_false-unreach-call.c [2018-10-24 18:37:12,240 INFO L346 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/c98b362f0/8ba0d4c1cd7f48a29a153582d72c323f/FLAG90fd7b2f3 [2018-10-24 18:37:12,256 INFO L354 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/c98b362f0/8ba0d4c1cd7f48a29a153582d72c323f [2018-10-24 18:37:12,267 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-10-24 18:37:12,269 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-10-24 18:37:12,270 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-10-24 18:37:12,270 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-10-24 18:37:12,276 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-10-24 18:37:12,277 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 06:37:12" (1/1) ... [2018-10-24 18:37:12,280 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@639b200f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 06:37:12, skipping insertion in model container [2018-10-24 18:37:12,280 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 06:37:12" (1/1) ... [2018-10-24 18:37:12,291 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-10-24 18:37:12,405 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-10-24 18:37:13,282 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-24 18:37:13,287 INFO L189 MainTranslator]: Completed pre-run [2018-10-24 18:37:13,562 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-24 18:37:13,585 INFO L193 MainTranslator]: Completed translation [2018-10-24 18:37:13,585 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 06:37:13 WrapperNode [2018-10-24 18:37:13,585 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-10-24 18:37:13,586 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-10-24 18:37:13,587 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-10-24 18:37:13,587 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-10-24 18:37:13,597 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 06:37:13" (1/1) ... [2018-10-24 18:37:13,636 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 06:37:13" (1/1) ... [2018-10-24 18:37:13,963 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-10-24 18:37:13,964 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-10-24 18:37:13,964 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-10-24 18:37:13,964 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-10-24 18:37:13,977 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 06:37:13" (1/1) ... [2018-10-24 18:37:13,977 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 06:37:13" (1/1) ... [2018-10-24 18:37:14,004 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 06:37:13" (1/1) ... [2018-10-24 18:37:14,004 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 06:37:13" (1/1) ... [2018-10-24 18:37:14,081 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 06:37:13" (1/1) ... [2018-10-24 18:37:14,099 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 06:37:13" (1/1) ... [2018-10-24 18:37:14,144 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 06:37:13" (1/1) ... [2018-10-24 18:37:14,177 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-10-24 18:37:14,178 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-10-24 18:37:14,178 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-10-24 18:37:14,178 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-10-24 18:37:14,180 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 06:37:13" (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 18:37:14,247 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-10-24 18:37:14,248 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-10-24 18:37:14,248 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output2 [2018-10-24 18:37:14,248 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output2 [2018-10-24 18:37:14,248 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2018-10-24 18:37:14,248 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2018-10-24 18:37:14,249 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-10-24 18:37:14,249 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-10-24 18:37:14,249 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-10-24 18:37:14,249 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-10-24 18:37:21,276 INFO L341 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-10-24 18:37:21,277 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 06:37:21 BoogieIcfgContainer [2018-10-24 18:37:21,277 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-10-24 18:37:21,278 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-10-24 18:37:21,279 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-10-24 18:37:21,282 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-10-24 18:37:21,282 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.10 06:37:12" (1/3) ... [2018-10-24 18:37:21,283 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7c6c5d8b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 06:37:21, skipping insertion in model container [2018-10-24 18:37:21,284 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 06:37:13" (2/3) ... [2018-10-24 18:37:21,284 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7c6c5d8b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 06:37:21, skipping insertion in model container [2018-10-24 18:37:21,284 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 06:37:21" (3/3) ... [2018-10-24 18:37:21,286 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem15_label23_false-unreach-call.c [2018-10-24 18:37:21,299 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-10-24 18:37:21,309 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-10-24 18:37:21,327 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-10-24 18:37:21,370 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-10-24 18:37:21,371 INFO L383 AbstractCegarLoop]: Hoare is true [2018-10-24 18:37:21,371 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-10-24 18:37:21,371 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-10-24 18:37:21,371 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-10-24 18:37:21,372 INFO L387 AbstractCegarLoop]: Difference is false [2018-10-24 18:37:21,372 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-10-24 18:37:21,372 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-10-24 18:37:21,406 INFO L276 IsEmpty]: Start isEmpty. Operand 438 states. [2018-10-24 18:37:21,413 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2018-10-24 18:37:21,414 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 18:37:21,415 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] [2018-10-24 18:37:21,418 INFO L424 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 18:37:21,424 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 18:37:21,425 INFO L82 PathProgramCache]: Analyzing trace with hash -263633140, now seen corresponding path program 1 times [2018-10-24 18:37:21,427 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-24 18:37:21,478 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 18:37:21,478 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 18:37:21,479 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 18:37:21,479 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-24 18:37:21,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 18:37:21,849 WARN L179 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 9 DAG size of output: 5 [2018-10-24 18:37:21,856 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 18:37:21,858 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-24 18:37:21,859 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-10-24 18:37:21,859 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-24 18:37:21,867 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-10-24 18:37:21,884 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-10-24 18:37:21,885 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-24 18:37:21,888 INFO L87 Difference]: Start difference. First operand 438 states. Second operand 4 states. [2018-10-24 18:37:30,210 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 18:37:30,210 INFO L93 Difference]: Finished difference Result 1558 states and 2849 transitions. [2018-10-24 18:37:30,211 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-10-24 18:37:30,212 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 24 [2018-10-24 18:37:30,213 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 18:37:30,258 INFO L225 Difference]: With dead ends: 1558 [2018-10-24 18:37:30,259 INFO L226 Difference]: Without dead ends: 1114 [2018-10-24 18:37:30,274 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 18:37:30,300 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1114 states. [2018-10-24 18:37:30,429 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1114 to 759. [2018-10-24 18:37:30,431 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 759 states. [2018-10-24 18:37:30,438 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 759 states to 759 states and 1355 transitions. [2018-10-24 18:37:30,441 INFO L78 Accepts]: Start accepts. Automaton has 759 states and 1355 transitions. Word has length 24 [2018-10-24 18:37:30,441 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 18:37:30,441 INFO L481 AbstractCegarLoop]: Abstraction has 759 states and 1355 transitions. [2018-10-24 18:37:30,441 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-10-24 18:37:30,442 INFO L276 IsEmpty]: Start isEmpty. Operand 759 states and 1355 transitions. [2018-10-24 18:37:30,450 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2018-10-24 18:37:30,451 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 18:37:30,451 INFO L375 BasicCegarLoop]: trace histogram [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] [2018-10-24 18:37:30,452 INFO L424 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 18:37:30,452 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 18:37:30,452 INFO L82 PathProgramCache]: Analyzing trace with hash -1599824585, now seen corresponding path program 1 times [2018-10-24 18:37:30,452 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-24 18:37:30,454 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 18:37:30,454 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 18:37:30,454 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 18:37:30,454 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-24 18:37:30,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 18:37:30,716 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 17 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-24 18:37:30,716 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-24 18:37:30,716 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-10-24 18:37:30,716 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-24 18:37:30,718 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-10-24 18:37:30,719 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-10-24 18:37:30,720 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-10-24 18:37:30,720 INFO L87 Difference]: Start difference. First operand 759 states and 1355 transitions. Second operand 3 states. [2018-10-24 18:37:34,247 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 18:37:34,247 INFO L93 Difference]: Finished difference Result 2135 states and 3917 transitions. [2018-10-24 18:37:34,250 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-10-24 18:37:34,250 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 94 [2018-10-24 18:37:34,251 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 18:37:34,262 INFO L225 Difference]: With dead ends: 2135 [2018-10-24 18:37:34,263 INFO L226 Difference]: Without dead ends: 1382 [2018-10-24 18:37:34,269 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-10-24 18:37:34,273 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1382 states. [2018-10-24 18:37:34,337 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1382 to 1379. [2018-10-24 18:37:34,338 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1379 states. [2018-10-24 18:37:34,346 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1379 states to 1379 states and 2119 transitions. [2018-10-24 18:37:34,346 INFO L78 Accepts]: Start accepts. Automaton has 1379 states and 2119 transitions. Word has length 94 [2018-10-24 18:37:34,347 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 18:37:34,347 INFO L481 AbstractCegarLoop]: Abstraction has 1379 states and 2119 transitions. [2018-10-24 18:37:34,347 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-10-24 18:37:34,348 INFO L276 IsEmpty]: Start isEmpty. Operand 1379 states and 2119 transitions. [2018-10-24 18:37:34,357 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2018-10-24 18:37:34,357 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 18:37:34,357 INFO L375 BasicCegarLoop]: trace histogram [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] [2018-10-24 18:37:34,358 INFO L424 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 18:37:34,360 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 18:37:34,360 INFO L82 PathProgramCache]: Analyzing trace with hash 1923051551, now seen corresponding path program 1 times [2018-10-24 18:37:34,360 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-24 18:37:34,361 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 18:37:34,362 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 18:37:34,362 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 18:37:34,362 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-24 18:37:34,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 18:37:34,760 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 17 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-24 18:37:34,760 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-24 18:37:34,761 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-10-24 18:37:34,761 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-24 18:37:34,761 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-10-24 18:37:34,762 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-10-24 18:37:34,762 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-10-24 18:37:34,762 INFO L87 Difference]: Start difference. First operand 1379 states and 2119 transitions. Second operand 5 states. [2018-10-24 18:37:43,519 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 18:37:43,520 INFO L93 Difference]: Finished difference Result 4123 states and 6416 transitions. [2018-10-24 18:37:43,520 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-10-24 18:37:43,520 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 111 [2018-10-24 18:37:43,521 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 18:37:43,539 INFO L225 Difference]: With dead ends: 4123 [2018-10-24 18:37:43,539 INFO L226 Difference]: Without dead ends: 2750 [2018-10-24 18:37:43,546 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2018-10-24 18:37:43,549 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2750 states. [2018-10-24 18:37:43,617 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2750 to 2710. [2018-10-24 18:37:43,618 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2710 states. [2018-10-24 18:37:43,631 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2710 states to 2710 states and 3750 transitions. [2018-10-24 18:37:43,631 INFO L78 Accepts]: Start accepts. Automaton has 2710 states and 3750 transitions. Word has length 111 [2018-10-24 18:37:43,632 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 18:37:43,632 INFO L481 AbstractCegarLoop]: Abstraction has 2710 states and 3750 transitions. [2018-10-24 18:37:43,632 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-10-24 18:37:43,632 INFO L276 IsEmpty]: Start isEmpty. Operand 2710 states and 3750 transitions. [2018-10-24 18:37:43,638 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 300 [2018-10-24 18:37:43,638 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 18:37:43,639 INFO L375 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 18:37:43,639 INFO L424 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 18:37:43,639 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 18:37:43,639 INFO L82 PathProgramCache]: Analyzing trace with hash 56698522, now seen corresponding path program 1 times [2018-10-24 18:37:43,640 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-24 18:37:43,641 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 18:37:43,641 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 18:37:43,641 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 18:37:43,641 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-24 18:37:43,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 18:37:44,123 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 0 proven. 13 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2018-10-24 18:37:44,124 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-24 18:37:44,124 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-10-24 18:37:44,125 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 300 with the following transitions: [2018-10-24 18:37:44,128 INFO L202 CegarAbsIntRunner]: [0], [1], [74], [81], [89], [97], [105], [113], [121], [129], [137], [145], [153], [161], [165], [167], [170], [178], [186], [194], [202], [210], [218], [226], [234], [242], [250], [258], [266], [274], [282], [290], [298], [306], [314], [322], [330], [338], [346], [354], [362], [370], [378], [386], [394], [402], [410], [418], [426], [434], [442], [450], [458], [466], [474], [482], [490], [498], [506], [514], [522], [530], [538], [546], [554], [562], [567], [571], [582], [586], [590], [594], [598], [602], [606], [610], [614], [618], [622], [626], [630], [641], [645], [649], [653], [657], [668], [672], [676], [680], [684], [688], [692], [696], [707], [711], [715], [719], [723], [727], [731], [735], [739], [743], [747], [751], [755], [759], [763], [767], [771], [775], [779], [783], [787], [798], [809], [813], [824], [835], [839], [850], [854], [865], [869], [873], [877], [881], [885], [896], [900], [904], [908], [912], [916], [920], [924], [935], [939], [943], [947], [951], [955], [959], [963], [967], [971], [975], [979], [983], [987], [991], [1002], [1006], [1010], [1014], [1018], [1029], [1033], [1037], [1041], [1045], [1049], [1053], [1057], [1061], [1072], [1076], [1080], [1084], [1088], [1092], [1096], [1100], [1104], [1108], [1112], [1116], [1120], [1124], [1128], [1132], [1136], [1140], [1144], [1148], [1152], [1156], [1160], [1164], [1168], [1172], [1176], [1180], [1191], [1202], [1206], [1210], [1214], [1218], [1229], [1233], [1237], [1241], [1245], [1256], [1260], [1264], [1268], [1272], [1276], [1280], [1284], [1288], [1292], [1296], [1300], [1304], [1308], [1312], [1316], [1320], [1324], [1328], [1332], [1336], [1340], [1344], [1348], [1352], [1356], [1367], [1371], [1375], [1379], [1383], [1394], [1398], [1402], [1406], [1417], [1421], [1425], [1429], [1433], [1437], [1441], [1452], [1456], [1460], [1471], [1475], [1486], [1490], [1494], [1498], [1502], [1506], [1510], [1514], [1518], [1522], [1526], [1530], [1534], [1538], [1542], [1546], [1550], [1554], [1558], [1561], [1635], [1639], [1643], [1649], [1653], [1655], [1662], [1663], [1664], [1666], [1667] [2018-10-24 18:37:44,225 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-10-24 18:37:44,225 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-10-24 18:37:50,964 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-10-24 18:38:15,333 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-10-24 18:38:15,335 INFO L272 AbstractInterpreter]: Visited 282 different actions 834 times. Merged at 5 different actions 10 times. Never widened. Found 1 fixpoints after 1 different actions. Largest state had 24 variables. [2018-10-24 18:38:15,354 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 18:38:15,354 INFO L398 sIntCurrentIteration]: Generating AbsInt predicates [2018-10-24 18:38:19,903 INFO L232 lantSequenceWeakener]: Weakened 58 states. On average, predicates are now at 78.79% of their original sizes. [2018-10-24 18:38:19,903 INFO L411 sIntCurrentIteration]: Unifying AI predicates [2018-10-24 18:38:34,805 INFO L413 sIntCurrentIteration]: We have 298 unified AI predicates [2018-10-24 18:38:34,805 INFO L422 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-10-24 18:38:34,806 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-10-24 18:38:34,807 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [25] imperfect sequences [5] total 28 [2018-10-24 18:38:34,807 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-24 18:38:34,808 INFO L460 AbstractCegarLoop]: Interpolant automaton has 25 states [2018-10-24 18:38:34,808 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2018-10-24 18:38:34,809 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=115, Invalid=485, Unknown=0, NotChecked=0, Total=600 [2018-10-24 18:38:34,809 INFO L87 Difference]: Start difference. First operand 2710 states and 3750 transitions. Second operand 25 states. Received shutdown request... [2018-10-24 18:41:22,550 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2018-10-24 18:41:22,550 WARN L550 AbstractCegarLoop]: Verification canceled [2018-10-24 18:41:22,556 WARN L205 ceAbstractionStarter]: Timeout [2018-10-24 18:41:22,557 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.10 06:41:22 BoogieIcfgContainer [2018-10-24 18:41:22,557 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-10-24 18:41:22,558 INFO L168 Benchmark]: Toolchain (without parser) took 250290.01 ms. Allocated memory was 1.5 GB in the beginning and 3.8 GB in the end (delta: 2.2 GB). Free memory was 1.4 GB in the beginning and 3.6 GB in the end (delta: -2.2 GB). Peak memory consumption was 71.4 MB. Max. memory is 7.1 GB. [2018-10-24 18:41:22,559 INFO L168 Benchmark]: CDTParser took 0.20 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 18:41:22,560 INFO L168 Benchmark]: CACSL2BoogieTranslator took 1315.98 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: 105.7 MB). Peak memory consumption was 105.7 MB. Max. memory is 7.1 GB. [2018-10-24 18:41:22,561 INFO L168 Benchmark]: Boogie Procedure Inliner took 377.19 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 757.6 MB). Free memory was 1.3 GB in the beginning and 2.2 GB in the end (delta: -875.2 MB). Peak memory consumption was 33.3 MB. Max. memory is 7.1 GB. [2018-10-24 18:41:22,562 INFO L168 Benchmark]: Boogie Preprocessor took 213.50 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: 13.7 MB). Peak memory consumption was 13.7 MB. Max. memory is 7.1 GB. [2018-10-24 18:41:22,564 INFO L168 Benchmark]: RCFGBuilder took 7099.46 ms. Allocated memory is still 2.3 GB. Free memory was 2.2 GB in the beginning and 1.9 GB in the end (delta: 315.3 MB). Peak memory consumption was 315.3 MB. Max. memory is 7.1 GB. [2018-10-24 18:41:22,565 INFO L168 Benchmark]: TraceAbstraction took 241278.65 ms. Allocated memory was 2.3 GB in the beginning and 3.8 GB in the end (delta: 1.5 GB). Free memory was 1.9 GB in the beginning and 3.6 GB in the end (delta: -1.7 GB). There was no memory consumed. Max. memory is 7.1 GB. [2018-10-24 18:41:22,572 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20 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 1315.98 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: 105.7 MB). Peak memory consumption was 105.7 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 377.19 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 757.6 MB). Free memory was 1.3 GB in the beginning and 2.2 GB in the end (delta: -875.2 MB). Peak memory consumption was 33.3 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 213.50 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: 13.7 MB). Peak memory consumption was 13.7 MB. Max. memory is 7.1 GB. * RCFGBuilder took 7099.46 ms. Allocated memory is still 2.3 GB. Free memory was 2.2 GB in the beginning and 1.9 GB in the end (delta: 315.3 MB). Peak memory consumption was 315.3 MB. Max. memory is 7.1 GB. * TraceAbstraction took 241278.65 ms. Allocated memory was 2.3 GB in the beginning and 3.8 GB in the end (delta: 1.5 GB). Free memory was 1.9 GB in the beginning and 3.6 GB in the end (delta: -1.7 GB). There was no memory consumed. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResultAtElement [Line: 58]: Timeout (TraceAbstraction) Unable to prove that call of __VERIFIER_error() unreachable (line 58). Cancelled while BasicCegarLoop was constructing difference of abstraction (2710states) and FLOYD_HOARE automaton (currently 11 states, 25 states before enhancement),while ReachableStatesComputation was computing reachable states (1053 states constructedinput type IntersectNwa). - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 438 locations, 1 error locations. TIMEOUT Result, 241.1s OverallTime, 4 OverallIterations, 2 TraceHistogramMax, 188.4s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 763 SDtfs, 4009 SDslu, 543 SDs, 0 SdLazy, 6787 SolverSat, 1285 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 50.7s Time, PredicateUnifierStatistics: 2 DeclaredPredicates, 324 GetRequests, 285 SyntacticMatches, 0 SemanticMatches, 39 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 196 ImplicationChecksByTransitivity, 18.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=2710occurred in iteration=3, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 31.2s AbstIntTime, 1 AbstIntIterations, 1 AbstIntStrong, 0.9968996206594688 AbsIntWeakeningRatio, 0.06711409395973154 AbsIntAvgWeakeningVarsNumRemoved, 466.2852348993289 AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.3s AutomataMinimizationTime, 3 MinimizatonAttempts, 398 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 1.1s InterpolantComputationTime, 528 NumberOfCodeBlocks, 528 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 524 ConstructedInterpolants, 0 QuantifiedInterpolants, 329646 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 4 InterpolantComputations, 3 PerfectInterpolantSequences, 38/51 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Completed graceful shutdown