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/Problem02_label54_true-unreach-call_false-termination.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-d380424 [2018-10-24 19:34:03,325 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-10-24 19:34:03,330 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-10-24 19:34:03,349 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-10-24 19:34:03,350 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-10-24 19:34:03,351 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-10-24 19:34:03,353 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-10-24 19:34:03,355 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-10-24 19:34:03,357 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-10-24 19:34:03,366 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-10-24 19:34:03,367 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-10-24 19:34:03,368 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-10-24 19:34:03,369 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-10-24 19:34:03,370 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-10-24 19:34:03,371 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-10-24 19:34:03,372 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-10-24 19:34:03,373 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-10-24 19:34:03,375 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-10-24 19:34:03,377 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-10-24 19:34:03,378 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-10-24 19:34:03,379 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-10-24 19:34:03,380 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-10-24 19:34:03,383 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-10-24 19:34:03,383 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-10-24 19:34:03,383 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-10-24 19:34:03,384 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-10-24 19:34:03,385 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-10-24 19:34:03,386 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-10-24 19:34:03,387 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-10-24 19:34:03,390 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-10-24 19:34:03,390 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-10-24 19:34:03,392 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-10-24 19:34:03,392 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-10-24 19:34:03,393 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-10-24 19:34:03,394 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-10-24 19:34:03,394 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-10-24 19:34:03,395 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 19:34:03,425 INFO L110 SettingsManager]: Loading preferences was successful [2018-10-24 19:34:03,425 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-10-24 19:34:03,426 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-10-24 19:34:03,426 INFO L133 SettingsManager]: * User list type=DISABLED [2018-10-24 19:34:03,427 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-10-24 19:34:03,428 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-10-24 19:34:03,428 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-10-24 19:34:03,428 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-10-24 19:34:03,428 INFO L133 SettingsManager]: * Log string format=TERM [2018-10-24 19:34:03,428 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-10-24 19:34:03,429 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-10-24 19:34:03,429 INFO L133 SettingsManager]: * Interval Domain=false [2018-10-24 19:34:03,430 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-10-24 19:34:03,431 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-10-24 19:34:03,431 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-10-24 19:34:03,431 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-10-24 19:34:03,431 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-10-24 19:34:03,431 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-10-24 19:34:03,432 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-10-24 19:34:03,432 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-10-24 19:34:03,432 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-10-24 19:34:03,432 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-10-24 19:34:03,433 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-10-24 19:34:03,434 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-10-24 19:34:03,434 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-10-24 19:34:03,434 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-10-24 19:34:03,434 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-10-24 19:34:03,435 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-10-24 19:34:03,435 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-10-24 19:34:03,435 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-10-24 19:34:03,435 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-10-24 19:34:03,435 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-10-24 19:34:03,436 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-10-24 19:34:03,436 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-10-24 19:34:03,490 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-10-24 19:34:03,508 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-10-24 19:34:03,513 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-10-24 19:34:03,514 INFO L271 PluginConnector]: Initializing CDTParser... [2018-10-24 19:34:03,515 INFO L276 PluginConnector]: CDTParser initialized [2018-10-24 19:34:03,516 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem02_label54_true-unreach-call_false-termination.c [2018-10-24 19:34:03,591 INFO L218 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/58d98a4a4/e31a29857ec048e5b5614e21991e9b56/FLAGfe91b9720 [2018-10-24 19:34:04,200 INFO L298 CDTParser]: Found 1 translation units. [2018-10-24 19:34:04,204 INFO L158 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem02_label54_true-unreach-call_false-termination.c [2018-10-24 19:34:04,218 INFO L346 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/58d98a4a4/e31a29857ec048e5b5614e21991e9b56/FLAGfe91b9720 [2018-10-24 19:34:04,238 INFO L354 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/58d98a4a4/e31a29857ec048e5b5614e21991e9b56 [2018-10-24 19:34:04,250 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-10-24 19:34:04,253 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-10-24 19:34:04,254 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-10-24 19:34:04,255 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-10-24 19:34:04,260 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-10-24 19:34:04,261 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 07:34:04" (1/1) ... [2018-10-24 19:34:04,264 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@72cfc8f3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 07:34:04, skipping insertion in model container [2018-10-24 19:34:04,264 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 07:34:04" (1/1) ... [2018-10-24 19:34:04,276 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-10-24 19:34:04,327 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-10-24 19:34:04,776 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-24 19:34:04,781 INFO L189 MainTranslator]: Completed pre-run [2018-10-24 19:34:04,926 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-24 19:34:04,954 INFO L193 MainTranslator]: Completed translation [2018-10-24 19:34:04,954 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 07:34:04 WrapperNode [2018-10-24 19:34:04,954 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-10-24 19:34:04,955 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-10-24 19:34:04,955 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-10-24 19:34:04,956 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-10-24 19:34:04,966 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 07:34:04" (1/1) ... [2018-10-24 19:34:04,990 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 07:34:04" (1/1) ... [2018-10-24 19:34:05,165 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-10-24 19:34:05,166 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-10-24 19:34:05,166 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-10-24 19:34:05,166 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-10-24 19:34:05,177 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 07:34:04" (1/1) ... [2018-10-24 19:34:05,177 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 07:34:04" (1/1) ... [2018-10-24 19:34:05,189 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 07:34:04" (1/1) ... [2018-10-24 19:34:05,189 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 07:34:04" (1/1) ... [2018-10-24 19:34:05,223 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 07:34:04" (1/1) ... [2018-10-24 19:34:05,249 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 07:34:04" (1/1) ... [2018-10-24 19:34:05,262 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 07:34:04" (1/1) ... [2018-10-24 19:34:05,279 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-10-24 19:34:05,283 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-10-24 19:34:05,283 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-10-24 19:34:05,283 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-10-24 19:34:05,284 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 07:34:04" (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 19:34:05,360 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-10-24 19:34:05,361 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-10-24 19:34:05,361 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2018-10-24 19:34:05,361 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2018-10-24 19:34:05,361 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-10-24 19:34:05,361 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-10-24 19:34:05,362 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-10-24 19:34:05,362 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-10-24 19:34:08,774 INFO L341 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-10-24 19:34:08,775 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 07:34:08 BoogieIcfgContainer [2018-10-24 19:34:08,775 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-10-24 19:34:08,778 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-10-24 19:34:08,779 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-10-24 19:34:08,784 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-10-24 19:34:08,785 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.10 07:34:04" (1/3) ... [2018-10-24 19:34:08,787 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1c84daf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 07:34:08, skipping insertion in model container [2018-10-24 19:34:08,787 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 07:34:04" (2/3) ... [2018-10-24 19:34:08,788 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1c84daf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 07:34:08, skipping insertion in model container [2018-10-24 19:34:08,788 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 07:34:08" (3/3) ... [2018-10-24 19:34:08,790 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem02_label54_true-unreach-call_false-termination.c [2018-10-24 19:34:08,801 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-10-24 19:34:08,812 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-10-24 19:34:08,831 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-10-24 19:34:08,878 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-10-24 19:34:08,878 INFO L383 AbstractCegarLoop]: Hoare is true [2018-10-24 19:34:08,879 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-10-24 19:34:08,879 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-10-24 19:34:08,879 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-10-24 19:34:08,879 INFO L387 AbstractCegarLoop]: Difference is false [2018-10-24 19:34:08,880 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-10-24 19:34:08,880 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-10-24 19:34:08,926 INFO L276 IsEmpty]: Start isEmpty. Operand 237 states. [2018-10-24 19:34:08,942 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2018-10-24 19:34:08,943 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 19:34:08,946 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 19:34:08,948 INFO L424 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 19:34:08,956 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 19:34:08,957 INFO L82 PathProgramCache]: Analyzing trace with hash -410796504, now seen corresponding path program 1 times [2018-10-24 19:34:08,960 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-24 19:34:09,021 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 19:34:09,022 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 19:34:09,022 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 19:34:09,022 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-24 19:34:09,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 19:34:09,630 WARN L179 SmtUtils]: Spent 153.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 4 [2018-10-24 19:34:09,775 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 19:34:09,778 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-24 19:34:09,778 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-10-24 19:34:09,779 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-24 19:34:09,786 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-10-24 19:34:09,803 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-10-24 19:34:09,804 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-10-24 19:34:09,806 INFO L87 Difference]: Start difference. First operand 237 states. Second operand 3 states. [2018-10-24 19:34:11,613 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 19:34:11,614 INFO L93 Difference]: Finished difference Result 621 states and 1059 transitions. [2018-10-24 19:34:11,615 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-10-24 19:34:11,617 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 108 [2018-10-24 19:34:11,618 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 19:34:11,637 INFO L225 Difference]: With dead ends: 621 [2018-10-24 19:34:11,637 INFO L226 Difference]: Without dead ends: 382 [2018-10-24 19:34:11,645 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 2 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-10-24 19:34:11,666 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 382 states. [2018-10-24 19:34:11,724 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 382 to 382. [2018-10-24 19:34:11,726 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 382 states. [2018-10-24 19:34:11,729 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 382 states to 382 states and 608 transitions. [2018-10-24 19:34:11,731 INFO L78 Accepts]: Start accepts. Automaton has 382 states and 608 transitions. Word has length 108 [2018-10-24 19:34:11,732 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 19:34:11,733 INFO L481 AbstractCegarLoop]: Abstraction has 382 states and 608 transitions. [2018-10-24 19:34:11,733 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-10-24 19:34:11,733 INFO L276 IsEmpty]: Start isEmpty. Operand 382 states and 608 transitions. [2018-10-24 19:34:11,741 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2018-10-24 19:34:11,741 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 19:34:11,742 INFO L375 BasicCegarLoop]: trace histogram [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] [2018-10-24 19:34:11,742 INFO L424 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 19:34:11,742 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 19:34:11,743 INFO L82 PathProgramCache]: Analyzing trace with hash 842519989, now seen corresponding path program 1 times [2018-10-24 19:34:11,743 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-24 19:34:11,744 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 19:34:11,744 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 19:34:11,745 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 19:34:11,745 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-24 19:34:11,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 19:34:12,014 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-24 19:34:12,015 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-24 19:34:12,015 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-10-24 19:34:12,015 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-24 19:34:12,018 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-10-24 19:34:12,019 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-10-24 19:34:12,019 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-10-24 19:34:12,019 INFO L87 Difference]: Start difference. First operand 382 states and 608 transitions. Second operand 3 states. [2018-10-24 19:34:13,070 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 19:34:13,071 INFO L93 Difference]: Finished difference Result 1049 states and 1735 transitions. [2018-10-24 19:34:13,073 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-10-24 19:34:13,074 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 117 [2018-10-24 19:34:13,075 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 19:34:13,083 INFO L225 Difference]: With dead ends: 1049 [2018-10-24 19:34:13,083 INFO L226 Difference]: Without dead ends: 673 [2018-10-24 19:34:13,090 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 19:34:13,091 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 673 states. [2018-10-24 19:34:13,136 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 673 to 673. [2018-10-24 19:34:13,137 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 673 states. [2018-10-24 19:34:13,142 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 673 states to 673 states and 1035 transitions. [2018-10-24 19:34:13,142 INFO L78 Accepts]: Start accepts. Automaton has 673 states and 1035 transitions. Word has length 117 [2018-10-24 19:34:13,143 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 19:34:13,143 INFO L481 AbstractCegarLoop]: Abstraction has 673 states and 1035 transitions. [2018-10-24 19:34:13,143 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-10-24 19:34:13,143 INFO L276 IsEmpty]: Start isEmpty. Operand 673 states and 1035 transitions. [2018-10-24 19:34:13,154 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2018-10-24 19:34:13,154 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 19:34:13,154 INFO L375 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-24 19:34:13,158 INFO L424 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 19:34:13,158 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 19:34:13,158 INFO L82 PathProgramCache]: Analyzing trace with hash -821181838, now seen corresponding path program 1 times [2018-10-24 19:34:13,159 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-24 19:34:13,161 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 19:34:13,161 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 19:34:13,161 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 19:34:13,161 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-24 19:34:13,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 19:34:13,416 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 20 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-24 19:34:13,416 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-24 19:34:13,417 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-10-24 19:34:13,417 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-24 19:34:13,417 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-10-24 19:34:13,418 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-10-24 19:34:13,418 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-10-24 19:34:13,418 INFO L87 Difference]: Start difference. First operand 673 states and 1035 transitions. Second operand 6 states. [2018-10-24 19:34:16,060 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 19:34:16,060 INFO L93 Difference]: Finished difference Result 2200 states and 3543 transitions. [2018-10-24 19:34:16,061 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-10-24 19:34:16,061 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 131 [2018-10-24 19:34:16,061 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 19:34:16,075 INFO L225 Difference]: With dead ends: 2200 [2018-10-24 19:34:16,075 INFO L226 Difference]: Without dead ends: 1533 [2018-10-24 19:34:16,081 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2018-10-24 19:34:16,082 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1533 states. [2018-10-24 19:34:16,139 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1533 to 1502. [2018-10-24 19:34:16,139 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1502 states. [2018-10-24 19:34:16,149 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1502 states to 1502 states and 2214 transitions. [2018-10-24 19:34:16,150 INFO L78 Accepts]: Start accepts. Automaton has 1502 states and 2214 transitions. Word has length 131 [2018-10-24 19:34:16,150 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 19:34:16,150 INFO L481 AbstractCegarLoop]: Abstraction has 1502 states and 2214 transitions. [2018-10-24 19:34:16,150 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-10-24 19:34:16,151 INFO L276 IsEmpty]: Start isEmpty. Operand 1502 states and 2214 transitions. [2018-10-24 19:34:16,156 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2018-10-24 19:34:16,156 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 19:34:16,157 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 19:34:16,157 INFO L424 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 19:34:16,157 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 19:34:16,158 INFO L82 PathProgramCache]: Analyzing trace with hash -873096346, now seen corresponding path program 1 times [2018-10-24 19:34:16,158 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-24 19:34:16,159 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 19:34:16,159 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 19:34:16,159 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 19:34:16,159 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-24 19:34:16,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 19:34:16,331 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 26 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-24 19:34:16,331 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-24 19:34:16,331 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-10-24 19:34:16,331 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-24 19:34:16,332 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-10-24 19:34:16,332 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-10-24 19:34:16,332 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-10-24 19:34:16,333 INFO L87 Difference]: Start difference. First operand 1502 states and 2214 transitions. Second operand 6 states. [2018-10-24 19:34:17,999 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 19:34:17,999 INFO L93 Difference]: Finished difference Result 3724 states and 5537 transitions. [2018-10-24 19:34:18,000 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-10-24 19:34:18,000 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 137 [2018-10-24 19:34:18,000 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 19:34:18,018 INFO L225 Difference]: With dead ends: 3724 [2018-10-24 19:34:18,018 INFO L226 Difference]: Without dead ends: 2228 [2018-10-24 19:34:18,027 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2018-10-24 19:34:18,029 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2228 states. [2018-10-24 19:34:18,100 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2228 to 2187. [2018-10-24 19:34:18,101 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2187 states. [2018-10-24 19:34:18,110 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2187 states to 2187 states and 3040 transitions. [2018-10-24 19:34:18,110 INFO L78 Accepts]: Start accepts. Automaton has 2187 states and 3040 transitions. Word has length 137 [2018-10-24 19:34:18,110 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 19:34:18,111 INFO L481 AbstractCegarLoop]: Abstraction has 2187 states and 3040 transitions. [2018-10-24 19:34:18,111 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-10-24 19:34:18,111 INFO L276 IsEmpty]: Start isEmpty. Operand 2187 states and 3040 transitions. [2018-10-24 19:34:18,118 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 146 [2018-10-24 19:34:18,118 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 19:34:18,118 INFO L375 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2018-10-24 19:34:18,119 INFO L424 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 19:34:18,119 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 19:34:18,119 INFO L82 PathProgramCache]: Analyzing trace with hash -59817223, now seen corresponding path program 1 times [2018-10-24 19:34:18,119 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-24 19:34:18,120 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 19:34:18,121 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 19:34:18,121 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 19:34:18,121 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-24 19:34:18,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 19:34:18,436 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 26 proven. 19 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-24 19:34:18,437 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-24 19:34:18,437 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-10-24 19:34:18,438 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 146 with the following transitions: [2018-10-24 19:34:18,440 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [6], [10], [14], [18], [22], [25], [26], [30], [34], [38], [42], [53], [64], [68], [72], [75], [76], [80], [84], [88], [92], [96], [100], [104], [108], [112], [116], [120], [124], [128], [132], [136], [140], [144], [148], [152], [156], [160], [171], [175], [179], [183], [187], [191], [195], [199], [210], [214], [218], [222], [233], [237], [241], [245], [249], [253], [257], [268], [272], [283], [287], [298], [309], [313], [317], [321], [325], [329], [333], [344], [348], [352], [356], [360], [364], [368], [372], [379], [387], [395], [403], [411], [419], [427], [435], [443], [451], [459], [467], [475], [483], [491], [499], [507], [515], [523], [531], [535], [537], [863], [867], [871], [877], [881], [883], [888], [889], [890], [892], [893] [2018-10-24 19:34:18,552 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-10-24 19:34:18,552 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-10-24 19:35:08,994 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-10-24 19:35:08,996 INFO L272 AbstractInterpreter]: Visited 112 different actions 332 times. Merged at 7 different actions 18 times. Never widened. Found 3 fixpoints after 3 different actions. Largest state had 38 variables. [2018-10-24 19:35:09,013 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 19:35:09,013 INFO L398 sIntCurrentIteration]: Generating AbsInt predicates [2018-10-24 19:35:14,771 INFO L232 lantSequenceWeakener]: Weakened 7 states. On average, predicates are now at 85.71% of their original sizes. [2018-10-24 19:35:14,771 INFO L411 sIntCurrentIteration]: Unifying AI predicates Received shutdown request... [2018-10-24 19:38:30,999 WARN L550 AbstractCegarLoop]: Verification canceled [2018-10-24 19:38:31,005 WARN L205 ceAbstractionStarter]: Timeout [2018-10-24 19:38:31,005 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.10 07:38:31 BoogieIcfgContainer [2018-10-24 19:38:31,005 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-10-24 19:38:31,007 INFO L168 Benchmark]: Toolchain (without parser) took 266754.29 ms. Allocated memory was 1.5 GB in the beginning and 3.6 GB in the end (delta: 2.1 GB). Free memory was 1.4 GB in the beginning and 1.7 GB in the end (delta: -264.0 MB). Peak memory consumption was 1.8 GB. Max. memory is 7.1 GB. [2018-10-24 19:38:31,008 INFO L168 Benchmark]: CDTParser took 0.22 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 19:38:31,008 INFO L168 Benchmark]: CACSL2BoogieTranslator took 700.25 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.4 GB in the end (delta: 42.3 MB). Peak memory consumption was 42.3 MB. Max. memory is 7.1 GB. [2018-10-24 19:38:31,009 INFO L168 Benchmark]: Boogie Procedure Inliner took 210.23 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 748.7 MB). Free memory was 1.4 GB in the beginning and 2.2 GB in the end (delta: -838.6 MB). Peak memory consumption was 18.8 MB. Max. memory is 7.1 GB. [2018-10-24 19:38:31,013 INFO L168 Benchmark]: Boogie Preprocessor took 113.64 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: 3.3 MB). Peak memory consumption was 3.3 MB. Max. memory is 7.1 GB. [2018-10-24 19:38:31,014 INFO L168 Benchmark]: RCFGBuilder took 3492.49 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: 102.7 MB). Peak memory consumption was 102.7 MB. Max. memory is 7.1 GB. [2018-10-24 19:38:31,015 INFO L168 Benchmark]: TraceAbstraction took 262227.27 ms. Allocated memory was 2.3 GB in the beginning and 3.6 GB in the end (delta: 1.3 GB). Free memory was 2.1 GB in the beginning and 1.7 GB in the end (delta: 426.3 MB). Peak memory consumption was 1.8 GB. Max. memory is 7.1 GB. [2018-10-24 19:38:31,021 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22 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 700.25 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.4 GB in the end (delta: 42.3 MB). Peak memory consumption was 42.3 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 210.23 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 748.7 MB). Free memory was 1.4 GB in the beginning and 2.2 GB in the end (delta: -838.6 MB). Peak memory consumption was 18.8 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 113.64 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: 3.3 MB). Peak memory consumption was 3.3 MB. Max. memory is 7.1 GB. * RCFGBuilder took 3492.49 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: 102.7 MB). Peak memory consumption was 102.7 MB. Max. memory is 7.1 GB. * TraceAbstraction took 262227.27 ms. Allocated memory was 2.3 GB in the beginning and 3.6 GB in the end (delta: 1.3 GB). Free memory was 2.1 GB in the beginning and 1.7 GB in the end (delta: 426.3 MB). Peak memory consumption was 1.8 GB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResultAtElement [Line: 475]: Timeout (TraceAbstraction) Unable to prove that call of __VERIFIER_error() unreachable (line 475). Cancelled while BasicCegarLoop was analyzing trace of length 146 with TraceHistMax 3,while AbsIntCurrentIteration was generating AI predicates,while PredicateComparison was comparing new predicate (quantifier-free) to 15 known predicates. - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 237 locations, 1 error locations. TIMEOUT Result, 262.1s OverallTime, 5 OverallIterations, 3 TraceHistogramMax, 7.2s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 569 SDtfs, 1908 SDslu, 417 SDs, 0 SdLazy, 2726 SolverSat, 658 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 5.8s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 29 GetRequests, 9 SyntacticMatches, 4 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.7s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=2187occurred in iteration=4, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 50.5s AbstIntTime, 1 AbstIntIterations, 1 AbstIntStrong, 0.9935692271218587 AbsIntWeakeningRatio, 0.22916666666666666 AbsIntAvgWeakeningVarsNumRemoved, 1268.9791666666667 AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.2s AutomataMinimizationTime, 4 MinimizatonAttempts, 72 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 1.0s InterpolantComputationTime, 493 NumberOfCodeBlocks, 493 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 489 ConstructedInterpolants, 0 QuantifiedInterpolants, 150266 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 PerfectInterpolantSequences, 52/52 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Completed graceful shutdown