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 0.1.23-1dbac8b [2018-10-27 03:30:15,308 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-10-27 03:30:15,311 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-10-27 03:30:15,323 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-10-27 03:30:15,323 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-10-27 03:30:15,324 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-10-27 03:30:15,326 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-10-27 03:30:15,328 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-10-27 03:30:15,329 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-10-27 03:30:15,330 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-10-27 03:30:15,331 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-10-27 03:30:15,331 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-10-27 03:30:15,332 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-10-27 03:30:15,333 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-10-27 03:30:15,334 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-10-27 03:30:15,335 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-10-27 03:30:15,336 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-10-27 03:30:15,338 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-10-27 03:30:15,340 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-10-27 03:30:15,342 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-10-27 03:30:15,343 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-10-27 03:30:15,344 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-10-27 03:30:15,346 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2018-10-27 03:30:15,359 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-10-27 03:30:15,359 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-10-27 03:30:15,360 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-10-27 03:30:15,363 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-10-27 03:30:15,363 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 [2018-10-27 03:30:15,395 INFO L110 SettingsManager]: Loading preferences was successful [2018-10-27 03:30:15,396 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-10-27 03:30:15,397 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-10-27 03:30:15,397 INFO L133 SettingsManager]: * User list type=DISABLED [2018-10-27 03:30:15,397 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-10-27 03:30:15,397 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-10-27 03:30:15,401 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-10-27 03:30:15,401 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-10-27 03:30:15,401 INFO L133 SettingsManager]: * Log string format=TERM [2018-10-27 03:30:15,402 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-10-27 03:30:15,402 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-10-27 03:30:15,402 INFO L133 SettingsManager]: * Interval Domain=false [2018-10-27 03:30:15,403 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-10-27 03:30:15,403 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-10-27 03:30:15,404 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-10-27 03:30:15,404 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-10-27 03:30:15,404 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-10-27 03:30:15,404 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-10-27 03:30:15,404 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-10-27 03:30:15,405 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-10-27 03:30:15,405 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-10-27 03:30:15,405 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-10-27 03:30:15,405 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-10-27 03:30:15,405 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-10-27 03:30:15,406 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-10-27 03:30:15,408 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-10-27 03:30:15,408 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-10-27 03:30:15,408 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-10-27 03:30:15,408 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-10-27 03:30:15,408 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-10-27 03:30:15,409 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-10-27 03:30:15,409 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-10-27 03:30:15,409 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-10-27 03:30:15,409 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-10-27 03:30:15,455 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-10-27 03:30:15,469 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-10-27 03:30:15,473 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-10-27 03:30:15,474 INFO L271 PluginConnector]: Initializing CDTParser... [2018-10-27 03:30:15,475 INFO L276 PluginConnector]: CDTParser initialized [2018-10-27 03:30:15,476 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem17_label10_true-unreach-call.c [2018-10-27 03:30:15,547 INFO L218 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/8f6d28139/18001fd8e3fb4bb7b3237eb926ccc404/FLAG600d2761e [2018-10-27 03:30:16,294 INFO L298 CDTParser]: Found 1 translation units. [2018-10-27 03:30:16,295 INFO L158 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem17_label10_true-unreach-call.c [2018-10-27 03:30:16,324 INFO L346 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/8f6d28139/18001fd8e3fb4bb7b3237eb926ccc404/FLAG600d2761e [2018-10-27 03:30:16,348 INFO L354 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/8f6d28139/18001fd8e3fb4bb7b3237eb926ccc404 [2018-10-27 03:30:16,359 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-10-27 03:30:16,360 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-10-27 03:30:16,361 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-10-27 03:30:16,361 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-10-27 03:30:16,365 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-10-27 03:30:16,366 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.10 03:30:16" (1/1) ... [2018-10-27 03:30:16,369 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@14b692d0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 03:30:16, skipping insertion in model container [2018-10-27 03:30:16,369 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.10 03:30:16" (1/1) ... [2018-10-27 03:30:16,380 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-10-27 03:30:16,493 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-10-27 03:30:17,499 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-27 03:30:17,504 INFO L189 MainTranslator]: Completed pre-run [2018-10-27 03:30:18,038 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-27 03:30:18,063 INFO L193 MainTranslator]: Completed translation [2018-10-27 03:30:18,063 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 03:30:18 WrapperNode [2018-10-27 03:30:18,064 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-10-27 03:30:18,065 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-10-27 03:30:18,065 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-10-27 03:30:18,065 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-10-27 03:30:18,075 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 03:30:18" (1/1) ... [2018-10-27 03:30:18,130 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 03:30:18" (1/1) ... [2018-10-27 03:30:18,533 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-10-27 03:30:18,533 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-10-27 03:30:18,534 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-10-27 03:30:18,534 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-10-27 03:30:18,546 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 03:30:18" (1/1) ... [2018-10-27 03:30:18,547 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 03:30:18" (1/1) ... [2018-10-27 03:30:18,579 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 03:30:18" (1/1) ... [2018-10-27 03:30:18,581 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 03:30:18" (1/1) ... [2018-10-27 03:30:18,719 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 03:30:18" (1/1) ... [2018-10-27 03:30:18,747 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 03:30:18" (1/1) ... [2018-10-27 03:30:18,813 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 03:30:18" (1/1) ... [2018-10-27 03:30:18,878 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-10-27 03:30:18,878 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-10-27 03:30:18,879 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-10-27 03:30:18,879 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-10-27 03:30:18,880 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 03:30:18" (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 [2018-10-27 03:30:18,954 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-10-27 03:30:18,954 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-10-27 03:30:18,954 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output2 [2018-10-27 03:30:18,954 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output2 [2018-10-27 03:30:18,955 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2018-10-27 03:30:18,955 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2018-10-27 03:30:18,955 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-10-27 03:30:18,955 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-10-27 03:30:18,955 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-10-27 03:30:18,955 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-10-27 03:30:31,238 INFO L341 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-10-27 03:30:31,238 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.10 03:30:31 BoogieIcfgContainer [2018-10-27 03:30:31,239 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-10-27 03:30:31,240 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-10-27 03:30:31,240 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-10-27 03:30:31,244 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-10-27 03:30:31,244 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 27.10 03:30:16" (1/3) ... [2018-10-27 03:30:31,245 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@52eb0f7f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.10 03:30:31, skipping insertion in model container [2018-10-27 03:30:31,245 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 03:30:18" (2/3) ... [2018-10-27 03:30:31,246 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@52eb0f7f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.10 03:30:31, skipping insertion in model container [2018-10-27 03:30:31,246 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.10 03:30:31" (3/3) ... [2018-10-27 03:30:31,248 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem17_label10_true-unreach-call.c [2018-10-27 03:30:31,259 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-10-27 03:30:31,269 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-10-27 03:30:31,288 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-10-27 03:30:31,348 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-10-27 03:30:31,348 INFO L383 AbstractCegarLoop]: Hoare is true [2018-10-27 03:30:31,348 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-10-27 03:30:31,348 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-10-27 03:30:31,349 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-10-27 03:30:31,349 INFO L387 AbstractCegarLoop]: Difference is false [2018-10-27 03:30:31,349 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-10-27 03:30:31,349 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-10-27 03:30:31,381 INFO L276 IsEmpty]: Start isEmpty. Operand 604 states. [2018-10-27 03:30:31,390 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2018-10-27 03:30:31,390 INFO L367 BasicCegarLoop]: Found error trace [2018-10-27 03:30:31,391 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] [2018-10-27 03:30:31,394 INFO L424 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-27 03:30:31,400 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-27 03:30:31,401 INFO L82 PathProgramCache]: Analyzing trace with hash -1853097852, now seen corresponding path program 1 times [2018-10-27 03:30:31,403 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-27 03:30:31,457 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 03:30:31,457 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-27 03:30:31,457 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 03:30:31,457 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-27 03:30:31,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-27 03:30:31,925 WARN L179 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 8 DAG size of output: 5 [2018-10-27 03:30:31,938 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-27 03:30:31,940 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-27 03:30:31,941 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-10-27 03:30:31,941 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-27 03:30:31,947 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-10-27 03:30:31,963 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-10-27 03:30:31,964 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-27 03:30:31,966 INFO L87 Difference]: Start difference. First operand 604 states. Second operand 4 states. [2018-10-27 03:30:47,096 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-27 03:30:47,096 INFO L93 Difference]: Finished difference Result 2139 states and 3961 transitions. [2018-10-27 03:30:47,097 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-10-27 03:30:47,098 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 46 [2018-10-27 03:30:47,099 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-27 03:30:47,132 INFO L225 Difference]: With dead ends: 2139 [2018-10-27 03:30:47,133 INFO L226 Difference]: Without dead ends: 1529 [2018-10-27 03:30:47,144 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 [2018-10-27 03:30:47,167 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1529 states. [2018-10-27 03:30:47,332 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1529 to 1527. [2018-10-27 03:30:47,336 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1527 states. [2018-10-27 03:30:47,346 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1527 states to 1527 states and 2413 transitions. [2018-10-27 03:30:47,348 INFO L78 Accepts]: Start accepts. Automaton has 1527 states and 2413 transitions. Word has length 46 [2018-10-27 03:30:47,348 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-27 03:30:47,348 INFO L481 AbstractCegarLoop]: Abstraction has 1527 states and 2413 transitions. [2018-10-27 03:30:47,349 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-10-27 03:30:47,349 INFO L276 IsEmpty]: Start isEmpty. Operand 1527 states and 2413 transitions. [2018-10-27 03:30:47,358 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2018-10-27 03:30:47,358 INFO L367 BasicCegarLoop]: Found error trace [2018-10-27 03:30:47,361 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] [2018-10-27 03:30:47,362 INFO L424 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-27 03:30:47,362 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-27 03:30:47,362 INFO L82 PathProgramCache]: Analyzing trace with hash -180836774, now seen corresponding path program 1 times [2018-10-27 03:30:47,362 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-27 03:30:47,363 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 03:30:47,365 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-27 03:30:47,365 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 03:30:47,365 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-27 03:30:47,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-27 03:30:47,920 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 0 proven. 39 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-27 03:30:47,920 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-27 03:30:47,921 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-10-27 03:30:47,922 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 122 with the following transitions: [2018-10-27 03:30:47,924 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] [2018-10-27 03:30:47,993 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-10-27 03:30:47,993 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-10-27 03:30:49,621 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-10-27 03:31:10,724 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-10-27 03:31:10,725 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. [2018-10-27 03:31:10,737 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-27 03:31:10,737 INFO L398 sIntCurrentIteration]: Generating AbsInt predicates [2018-10-27 03:31:12,833 INFO L227 lantSequenceWeakener]: Weakened 5 states. On average, predicates are now at 83.33% of their original sizes. [2018-10-27 03:31:12,834 INFO L413 sIntCurrentIteration]: Unifying AI predicates [2018-10-27 03:31:52,772 INFO L415 sIntCurrentIteration]: We unified 120 AI predicates to 120 [2018-10-27 03:31:52,773 INFO L424 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-10-27 03:31:52,774 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-10-27 03:31:52,774 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [19] imperfect sequences [7] total 24 [2018-10-27 03:31:52,774 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-27 03:31:52,776 INFO L460 AbstractCegarLoop]: Interpolant automaton has 19 states [2018-10-27 03:31:52,776 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2018-10-27 03:31:52,777 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=71, Invalid=271, Unknown=0, NotChecked=0, Total=342 [2018-10-27 03:31:52,777 INFO L87 Difference]: Start difference. First operand 1527 states and 2413 transitions. Second operand 19 states. Received shutdown request... [2018-10-27 03:34:24,035 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2018-10-27 03:34:24,036 WARN L550 AbstractCegarLoop]: Verification canceled [2018-10-27 03:34:24,041 WARN L205 ceAbstractionStarter]: Timeout [2018-10-27 03:34:24,041 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 27.10 03:34:24 BoogieIcfgContainer [2018-10-27 03:34:24,041 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-10-27 03:34:24,042 INFO L168 Benchmark]: Toolchain (without parser) took 247683.10 ms. Allocated memory was 1.5 GB in the beginning and 4.3 GB in the end (delta: 2.7 GB). Free memory was 1.4 GB in the beginning and 2.0 GB in the end (delta: -553.4 MB). Peak memory consumption was 2.2 GB. Max. memory is 7.1 GB. [2018-10-27 03:34:24,044 INFO L168 Benchmark]: CDTParser took 0.21 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. [2018-10-27 03:34:24,044 INFO L168 Benchmark]: CACSL2BoogieTranslator took 1703.00 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: 140.1 MB). Peak memory consumption was 140.1 MB. Max. memory is 7.1 GB. [2018-10-27 03:34:24,045 INFO L168 Benchmark]: Boogie Procedure Inliner took 468.65 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 801.1 MB). Free memory was 1.3 GB in the beginning and 2.2 GB in the end (delta: -957.3 MB). Peak memory consumption was 56.2 MB. Max. memory is 7.1 GB. [2018-10-27 03:34:24,046 INFO L168 Benchmark]: Boogie Preprocessor took 344.50 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: 27.6 MB). Peak memory consumption was 27.6 MB. Max. memory is 7.1 GB. [2018-10-27 03:34:24,047 INFO L168 Benchmark]: RCFGBuilder took 12360.74 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: 467.4 MB). Peak memory consumption was 467.4 MB. Max. memory is 7.1 GB. [2018-10-27 03:34:24,048 INFO L168 Benchmark]: TraceAbstraction took 232801.39 ms. Allocated memory was 2.3 GB in the beginning and 4.3 GB in the end (delta: 1.9 GB). Free memory was 1.7 GB in the beginning and 2.0 GB in the end (delta: -231.2 MB). Peak memory consumption was 1.7 GB. Max. memory is 7.1 GB. [2018-10-27 03:34:24,054 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21 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 1703.00 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: 140.1 MB). Peak memory consumption was 140.1 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 468.65 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 801.1 MB). Free memory was 1.3 GB in the beginning and 2.2 GB in the end (delta: -957.3 MB). Peak memory consumption was 56.2 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 344.50 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: 27.6 MB). Peak memory consumption was 27.6 MB. Max. memory is 7.1 GB. * RCFGBuilder took 12360.74 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: 467.4 MB). Peak memory consumption was 467.4 MB. Max. memory is 7.1 GB. * TraceAbstraction took 232801.39 ms. Allocated memory was 2.3 GB in the beginning and 4.3 GB in the end (delta: 1.9 GB). Free memory was 1.7 GB in the beginning and 2.0 GB in the end (delta: -231.2 MB). Peak memory consumption was 1.7 GB. 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 22 states, 19 states before enhancement),while ReachableStatesComputation was computing reachable states (679 states constructedinput type IntersectNwa). - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 604 locations, 1 error locations. TIMEOUT Result, 232.7s OverallTime, 2 OverallIterations, 2 TraceHistogramMax, 166.4s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 588 SDtfs, 2744 SDslu, 306 SDs, 0 SdLazy, 4029 SolverSat, 925 SolverUnsat, 1 SolverUnknown, 0 SolverNotchecked, 61.1s Time, PredicateUnifierStatistics: 2 DeclaredPredicates, 143 GetRequests, 86 SyntacticMatches, 21 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 454 ImplicationChecksByTransitivity, 50.4s 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, 22.8s AbstIntTime, 1 AbstIntIterations, 1 AbstIntStrong, 0.9925769230769231 AbsIntWeakeningRatio, 0.175 AbsIntAvgWeakeningVarsNumRemoved, 792.625 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