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/Problem03_label00_true-unreach-call.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-0fd1304 [2018-10-23 23:30:46,144 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-10-23 23:30:46,147 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-10-23 23:30:46,164 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-10-23 23:30:46,165 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-10-23 23:30:46,166 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-10-23 23:30:46,168 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-10-23 23:30:46,170 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-10-23 23:30:46,173 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-10-23 23:30:46,174 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-10-23 23:30:46,176 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-10-23 23:30:46,177 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-10-23 23:30:46,178 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-10-23 23:30:46,179 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-10-23 23:30:46,187 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-10-23 23:30:46,188 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-10-23 23:30:46,189 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-10-23 23:30:46,195 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-10-23 23:30:46,199 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-10-23 23:30:46,200 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-10-23 23:30:46,204 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-10-23 23:30:46,205 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-10-23 23:30:46,211 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-10-23 23:30:46,211 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-10-23 23:30:46,212 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-10-23 23:30:46,213 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-10-23 23:30:46,214 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-10-23 23:30:46,215 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-10-23 23:30:46,217 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-10-23 23:30:46,219 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-10-23 23:30:46,219 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-10-23 23:30:46,222 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-10-23 23:30:46,222 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-10-23 23:30:46,222 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-10-23 23:30:46,223 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-10-23 23:30:46,224 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-10-23 23:30:46,224 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 [2018-10-23 23:30:46,255 INFO L110 SettingsManager]: Loading preferences was successful [2018-10-23 23:30:46,255 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-10-23 23:30:46,256 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-10-23 23:30:46,256 INFO L133 SettingsManager]: * User list type=DISABLED [2018-10-23 23:30:46,256 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-10-23 23:30:46,257 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-10-23 23:30:46,257 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-10-23 23:30:46,257 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-10-23 23:30:46,257 INFO L133 SettingsManager]: * Log string format=TERM [2018-10-23 23:30:46,258 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-10-23 23:30:46,258 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-10-23 23:30:46,258 INFO L133 SettingsManager]: * Interval Domain=false [2018-10-23 23:30:46,259 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-10-23 23:30:46,260 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-10-23 23:30:46,260 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-10-23 23:30:46,260 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-10-23 23:30:46,260 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-10-23 23:30:46,261 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-10-23 23:30:46,261 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-10-23 23:30:46,261 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-10-23 23:30:46,261 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-10-23 23:30:46,261 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-10-23 23:30:46,262 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-10-23 23:30:46,263 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-10-23 23:30:46,263 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-10-23 23:30:46,263 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-10-23 23:30:46,264 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-10-23 23:30:46,264 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-10-23 23:30:46,264 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-10-23 23:30:46,264 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-10-23 23:30:46,264 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-10-23 23:30:46,265 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-10-23 23:30:46,265 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-10-23 23:30:46,265 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-10-23 23:30:46,341 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-10-23 23:30:46,354 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-10-23 23:30:46,358 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-10-23 23:30:46,360 INFO L271 PluginConnector]: Initializing CDTParser... [2018-10-23 23:30:46,360 INFO L276 PluginConnector]: CDTParser initialized [2018-10-23 23:30:46,361 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem03_label00_true-unreach-call.c [2018-10-23 23:30:46,424 INFO L218 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/ec6881dce/17d64c12d4994e8296c086a5fda9aa0d/FLAG905879296 [2018-10-23 23:30:47,120 INFO L298 CDTParser]: Found 1 translation units. [2018-10-23 23:30:47,122 INFO L158 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem03_label00_true-unreach-call.c [2018-10-23 23:30:47,141 INFO L346 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/ec6881dce/17d64c12d4994e8296c086a5fda9aa0d/FLAG905879296 [2018-10-23 23:30:47,157 INFO L354 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/ec6881dce/17d64c12d4994e8296c086a5fda9aa0d [2018-10-23 23:30:47,168 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-10-23 23:30:47,170 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-10-23 23:30:47,171 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-10-23 23:30:47,171 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-10-23 23:30:47,175 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-10-23 23:30:47,176 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.10 11:30:47" (1/1) ... [2018-10-23 23:30:47,179 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1a804135 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 11:30:47, skipping insertion in model container [2018-10-23 23:30:47,179 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.10 11:30:47" (1/1) ... [2018-10-23 23:30:47,190 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-10-23 23:30:47,282 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-10-23 23:30:47,986 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-23 23:30:47,995 INFO L189 MainTranslator]: Completed pre-run [2018-10-23 23:30:48,308 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-23 23:30:48,333 INFO L193 MainTranslator]: Completed translation [2018-10-23 23:30:48,334 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 11:30:48 WrapperNode [2018-10-23 23:30:48,335 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-10-23 23:30:48,336 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-10-23 23:30:48,336 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-10-23 23:30:48,336 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-10-23 23:30:48,347 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 11:30:48" (1/1) ... [2018-10-23 23:30:48,392 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 11:30:48" (1/1) ... [2018-10-23 23:30:48,656 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-10-23 23:30:48,656 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-10-23 23:30:48,657 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-10-23 23:30:48,657 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-10-23 23:30:48,669 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 11:30:48" (1/1) ... [2018-10-23 23:30:48,670 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 11:30:48" (1/1) ... [2018-10-23 23:30:48,684 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 11:30:48" (1/1) ... [2018-10-23 23:30:48,684 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 11:30:48" (1/1) ... [2018-10-23 23:30:48,757 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 11:30:48" (1/1) ... [2018-10-23 23:30:48,792 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 11:30:48" (1/1) ... [2018-10-23 23:30:48,804 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 11:30:48" (1/1) ... [2018-10-23 23:30:48,825 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-10-23 23:30:48,826 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-10-23 23:30:48,826 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-10-23 23:30:48,826 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-10-23 23:30:48,827 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 11:30:48" (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 [2018-10-23 23:30:48,893 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-10-23 23:30:48,893 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-10-23 23:30:48,893 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2018-10-23 23:30:48,894 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2018-10-23 23:30:48,894 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-10-23 23:30:48,894 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-10-23 23:30:48,894 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-10-23 23:30:48,894 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-10-23 23:30:53,719 INFO L341 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-10-23 23:30:53,720 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.10 11:30:53 BoogieIcfgContainer [2018-10-23 23:30:53,720 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-10-23 23:30:53,722 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-10-23 23:30:53,722 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-10-23 23:30:53,726 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-10-23 23:30:53,727 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.10 11:30:47" (1/3) ... [2018-10-23 23:30:53,729 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3e4c7553 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.10 11:30:53, skipping insertion in model container [2018-10-23 23:30:53,729 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 11:30:48" (2/3) ... [2018-10-23 23:30:53,729 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3e4c7553 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.10 11:30:53, skipping insertion in model container [2018-10-23 23:30:53,729 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.10 11:30:53" (3/3) ... [2018-10-23 23:30:53,732 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem03_label00_true-unreach-call.c [2018-10-23 23:30:53,744 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-10-23 23:30:53,760 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-10-23 23:30:53,780 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-10-23 23:30:53,823 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-10-23 23:30:53,823 INFO L383 AbstractCegarLoop]: Hoare is true [2018-10-23 23:30:53,824 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-10-23 23:30:53,824 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-10-23 23:30:53,824 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-10-23 23:30:53,824 INFO L387 AbstractCegarLoop]: Difference is false [2018-10-23 23:30:53,825 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-10-23 23:30:53,825 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-10-23 23:30:53,857 INFO L276 IsEmpty]: Start isEmpty. Operand 312 states. [2018-10-23 23:30:53,880 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 200 [2018-10-23 23:30:53,881 INFO L367 BasicCegarLoop]: Found error trace [2018-10-23 23:30:53,882 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-23 23:30:53,885 INFO L424 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-23 23:30:53,896 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-23 23:30:53,896 INFO L82 PathProgramCache]: Analyzing trace with hash 612696124, now seen corresponding path program 1 times [2018-10-23 23:30:53,899 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-23 23:30:53,969 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-23 23:30:53,969 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-23 23:30:53,969 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-23 23:30:53,970 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-23 23:30:54,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-23 23:30:55,101 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-23 23:30:55,104 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-23 23:30:55,104 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-10-23 23:30:55,105 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-23 23:30:55,112 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-10-23 23:30:55,125 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-10-23 23:30:55,126 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-23 23:30:55,129 INFO L87 Difference]: Start difference. First operand 312 states. Second operand 4 states. [2018-10-23 23:30:58,669 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-23 23:30:58,670 INFO L93 Difference]: Finished difference Result 1085 states and 1949 transitions. [2018-10-23 23:30:58,671 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-10-23 23:30:58,673 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 199 [2018-10-23 23:30:58,674 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-23 23:30:58,702 INFO L225 Difference]: With dead ends: 1085 [2018-10-23 23:30:58,702 INFO L226 Difference]: Without dead ends: 767 [2018-10-23 23:30:58,711 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 [2018-10-23 23:30:58,732 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 767 states. [2018-10-23 23:30:58,810 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 767 to 523. [2018-10-23 23:30:58,811 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 523 states. [2018-10-23 23:30:58,815 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 523 states to 523 states and 922 transitions. [2018-10-23 23:30:58,817 INFO L78 Accepts]: Start accepts. Automaton has 523 states and 922 transitions. Word has length 199 [2018-10-23 23:30:58,818 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-23 23:30:58,818 INFO L481 AbstractCegarLoop]: Abstraction has 523 states and 922 transitions. [2018-10-23 23:30:58,819 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-10-23 23:30:58,819 INFO L276 IsEmpty]: Start isEmpty. Operand 523 states and 922 transitions. [2018-10-23 23:30:58,827 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 211 [2018-10-23 23:30:58,827 INFO L367 BasicCegarLoop]: Found error trace [2018-10-23 23:30:58,828 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-23 23:30:58,828 INFO L424 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-23 23:30:58,829 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-23 23:30:58,829 INFO L82 PathProgramCache]: Analyzing trace with hash -1141200915, now seen corresponding path program 1 times [2018-10-23 23:30:58,829 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-23 23:30:58,831 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-23 23:30:58,831 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-23 23:30:58,831 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-23 23:30:58,831 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-23 23:30:58,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-23 23:30:59,151 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-23 23:30:59,152 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-23 23:30:59,152 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-10-23 23:30:59,152 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-23 23:30:59,155 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-10-23 23:30:59,155 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-10-23 23:30:59,155 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-10-23 23:30:59,156 INFO L87 Difference]: Start difference. First operand 523 states and 922 transitions. Second operand 5 states. [2018-10-23 23:31:02,844 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-23 23:31:02,845 INFO L93 Difference]: Finished difference Result 1613 states and 2944 transitions. [2018-10-23 23:31:02,851 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-10-23 23:31:02,851 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 210 [2018-10-23 23:31:02,852 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-23 23:31:02,864 INFO L225 Difference]: With dead ends: 1613 [2018-10-23 23:31:02,864 INFO L226 Difference]: Without dead ends: 1096 [2018-10-23 23:31:02,873 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2018-10-23 23:31:02,875 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1096 states. [2018-10-23 23:31:02,951 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1096 to 1073. [2018-10-23 23:31:02,951 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1073 states. [2018-10-23 23:31:02,960 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1073 states to 1073 states and 1774 transitions. [2018-10-23 23:31:02,961 INFO L78 Accepts]: Start accepts. Automaton has 1073 states and 1774 transitions. Word has length 210 [2018-10-23 23:31:02,961 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-23 23:31:02,961 INFO L481 AbstractCegarLoop]: Abstraction has 1073 states and 1774 transitions. [2018-10-23 23:31:02,961 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-10-23 23:31:02,961 INFO L276 IsEmpty]: Start isEmpty. Operand 1073 states and 1774 transitions. [2018-10-23 23:31:02,968 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 213 [2018-10-23 23:31:02,968 INFO L367 BasicCegarLoop]: Found error trace [2018-10-23 23:31:02,969 INFO L375 BasicCegarLoop]: trace histogram [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] [2018-10-23 23:31:02,972 INFO L424 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-23 23:31:02,972 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-23 23:31:02,972 INFO L82 PathProgramCache]: Analyzing trace with hash 2110773816, now seen corresponding path program 1 times [2018-10-23 23:31:02,973 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-23 23:31:02,974 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-23 23:31:02,974 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-23 23:31:02,974 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-23 23:31:02,974 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-23 23:31:03,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-23 23:31:03,305 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-23 23:31:03,306 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-23 23:31:03,306 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-10-23 23:31:03,306 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-23 23:31:03,307 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-10-23 23:31:03,307 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-10-23 23:31:03,307 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-10-23 23:31:03,310 INFO L87 Difference]: Start difference. First operand 1073 states and 1774 transitions. Second operand 3 states. [2018-10-23 23:31:05,220 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-23 23:31:05,222 INFO L93 Difference]: Finished difference Result 3069 states and 5224 transitions. [2018-10-23 23:31:05,222 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-10-23 23:31:05,222 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 212 [2018-10-23 23:31:05,223 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-23 23:31:05,237 INFO L225 Difference]: With dead ends: 3069 [2018-10-23 23:31:05,238 INFO L226 Difference]: Without dead ends: 2002 [2018-10-23 23:31:05,243 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 [2018-10-23 23:31:05,248 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2002 states. [2018-10-23 23:31:05,317 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2002 to 1984. [2018-10-23 23:31:05,318 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1984 states. [2018-10-23 23:31:05,331 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1984 states to 1984 states and 3215 transitions. [2018-10-23 23:31:05,331 INFO L78 Accepts]: Start accepts. Automaton has 1984 states and 3215 transitions. Word has length 212 [2018-10-23 23:31:05,332 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-23 23:31:05,332 INFO L481 AbstractCegarLoop]: Abstraction has 1984 states and 3215 transitions. [2018-10-23 23:31:05,332 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-10-23 23:31:05,332 INFO L276 IsEmpty]: Start isEmpty. Operand 1984 states and 3215 transitions. [2018-10-23 23:31:05,344 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 254 [2018-10-23 23:31:05,344 INFO L367 BasicCegarLoop]: Found error trace [2018-10-23 23:31:05,345 INFO L375 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-23 23:31:05,345 INFO L424 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-23 23:31:05,346 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-23 23:31:05,346 INFO L82 PathProgramCache]: Analyzing trace with hash -639515856, now seen corresponding path program 1 times [2018-10-23 23:31:05,346 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-23 23:31:05,347 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-23 23:31:05,347 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-23 23:31:05,347 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-23 23:31:05,347 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-23 23:31:05,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-23 23:31:05,619 WARN L179 SmtUtils]: Spent 138.00 ms on a formula simplification. DAG size of input: 12 DAG size of output: 4 [2018-10-23 23:31:06,139 INFO L134 CoverageAnalysis]: Checked inductivity of 56 backedges. 46 proven. 5 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2018-10-23 23:31:06,140 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-23 23:31:06,140 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-10-23 23:31:06,142 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 254 with the following transitions: [2018-10-23 23:31:06,145 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [13], [16], [17], [21], [25], [29], [33], [37], [41], [45], [49], [53], [57], [61], [65], [76], [80], [84], [88], [92], [96], [100], [104], [108], [112], [116], [120], [124], [128], [132], [136], [140], [144], [148], [151], [156], [158], [159], [163], [167], [171], [175], [179], [183], [187], [191], [202], [206], [210], [221], [225], [229], [233], [237], [241], [245], [249], [253], [257], [261], [265], [269], [273], [277], [281], [285], [289], [293], [297], [308], [312], [323], [327], [331], [335], [339], [343], [347], [351], [355], [359], [363], [367], [371], [375], [379], [383], [394], [398], [402], [406], [417], [421], [425], [429], [433], [437], [441], [445], [449], [453], [457], [461], [472], [476], [480], [484], [488], [492], [496], [500], [504], [508], [512], [516], [520], [524], [528], [532], [536], [540], [551], [555], [559], [570], [574], [585], [589], [593], [597], [601], [605], [609], [613], [624], [635], [646], [650], [654], [658], [662], [666], [673], [681], [689], [697], [705], [713], [721], [729], [737], [745], [753], [761], [769], [777], [785], [793], [801], [809], [817], [825], [833], [841], [849], [857], [865], [873], [881], [889], [897], [905], [913], [921], [929], [937], [945], [953], [961], [969], [977], [985], [993], [1001], [1009], [1017], [1025], [1033], [1041], [1049], [1053], [1055], [1157], [1161], [1165], [1171], [1175], [1177], [1182], [1183], [1184], [1186], [1187] [2018-10-23 23:31:06,270 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-10-23 23:31:06,271 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) Received shutdown request... [2018-10-23 23:35:22,332 WARN L572 FixpointEngine]: Received timeout, aborting fixpoint engine [2018-10-23 23:35:22,333 WARN L158 AbstractInterpreter]: Abstract interpretation run out of time [2018-10-23 23:35:22,335 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: AbsInt can only provide a hoare triple checker if it generated fixpoints [2018-10-23 23:35:22,335 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-23 23:35:22,335 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-10-23 23:35:22,351 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-23 23:35:22,351 INFO L288 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-10-23 23:35:22,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-23 23:35:22,593 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-10-23 23:35:22,635 INFO L177 TraceCheckSpWp]: Timeout while computing interpolants [2018-10-23 23:35:22,837 WARN L522 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-10-23 23:35:22,838 WARN L550 AbstractCegarLoop]: Verification canceled [2018-10-23 23:35:22,844 WARN L205 ceAbstractionStarter]: Timeout [2018-10-23 23:35:22,845 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.10 11:35:22 BoogieIcfgContainer [2018-10-23 23:35:22,845 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-10-23 23:35:22,846 INFO L168 Benchmark]: Toolchain (without parser) took 275676.75 ms. Allocated memory was 1.5 GB in the beginning and 3.1 GB in the end (delta: 1.6 GB). Free memory was 1.4 GB in the beginning and 2.3 GB in the end (delta: -925.4 MB). Peak memory consumption was 673.7 MB. Max. memory is 7.1 GB. [2018-10-23 23:35:22,847 INFO L168 Benchmark]: CDTParser took 0.25 ms. Allocated memory is still 1.5 GB. Free memory is still 1.4 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-10-23 23:35:22,848 INFO L168 Benchmark]: CACSL2BoogieTranslator took 1163.95 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: 84.6 MB). Peak memory consumption was 84.6 MB. Max. memory is 7.1 GB. [2018-10-23 23:35:22,849 INFO L168 Benchmark]: Boogie Procedure Inliner took 320.43 ms. Allocated memory was 1.5 GB in the beginning and 2.2 GB in the end (delta: 731.9 MB). Free memory was 1.3 GB in the beginning and 2.2 GB in the end (delta: -855.7 MB). Peak memory consumption was 40.3 MB. Max. memory is 7.1 GB. [2018-10-23 23:35:22,850 INFO L168 Benchmark]: Boogie Preprocessor took 169.25 ms. Allocated memory is still 2.2 GB. Free memory was 2.2 GB in the beginning and 2.2 GB in the end (delta: 14.3 MB). Peak memory consumption was 14.3 MB. Max. memory is 7.1 GB. [2018-10-23 23:35:22,851 INFO L168 Benchmark]: RCFGBuilder took 4894.62 ms. Allocated memory is still 2.2 GB. Free memory was 2.2 GB in the beginning and 1.9 GB in the end (delta: 255.9 MB). Peak memory consumption was 255.9 MB. Max. memory is 7.1 GB. [2018-10-23 23:35:22,852 INFO L168 Benchmark]: TraceAbstraction took 269123.01 ms. Allocated memory was 2.2 GB in the beginning and 3.1 GB in the end (delta: 867.2 MB). Free memory was 1.9 GB in the beginning and 2.3 GB in the end (delta: -424.5 MB). Peak memory consumption was 442.7 MB. Max. memory is 7.1 GB. [2018-10-23 23:35:22,857 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.25 ms. Allocated memory is still 1.5 GB. Free memory is still 1.4 GB. There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 1163.95 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: 84.6 MB). Peak memory consumption was 84.6 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 320.43 ms. Allocated memory was 1.5 GB in the beginning and 2.2 GB in the end (delta: 731.9 MB). Free memory was 1.3 GB in the beginning and 2.2 GB in the end (delta: -855.7 MB). Peak memory consumption was 40.3 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 169.25 ms. Allocated memory is still 2.2 GB. Free memory was 2.2 GB in the beginning and 2.2 GB in the end (delta: 14.3 MB). Peak memory consumption was 14.3 MB. Max. memory is 7.1 GB. * RCFGBuilder took 4894.62 ms. Allocated memory is still 2.2 GB. Free memory was 2.2 GB in the beginning and 1.9 GB in the end (delta: 255.9 MB). Peak memory consumption was 255.9 MB. Max. memory is 7.1 GB. * TraceAbstraction took 269123.01 ms. Allocated memory was 2.2 GB in the beginning and 3.1 GB in the end (delta: 867.2 MB). Free memory was 1.9 GB in the beginning and 2.3 GB in the end (delta: -424.5 MB). Peak memory consumption was 442.7 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResultAtElement [Line: 1611]: Timeout (TraceAbstraction) Unable to prove that call of __VERIFIER_error() unreachable (line 1611). Cancelled while BasicCegarLoop was analyzing trace of length 254 with TraceHistMax 3,while TraceCheckSpWp was constructing forward predicates,while PredicateComparison was comparing new predicate (quantifier-free) to 6 known predicates. - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 312 locations, 1 error locations. TIMEOUT Result, 269.0s OverallTime, 4 OverallIterations, 3 TraceHistogramMax, 9.2s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 803 SDtfs, 1647 SDslu, 345 SDs, 0 SdLazy, 3216 SolverSat, 747 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 7.5s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 19 GetRequests, 9 SyntacticMatches, 1 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1984occurred in iteration=3, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 256.1s AbstIntTime, 1 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.2s AutomataMinimizationTime, 3 MinimizatonAttempts, 285 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.1s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 1.0s InterpolantComputationTime, 621 NumberOfCodeBlocks, 621 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 618 ConstructedInterpolants, 0 QuantifiedInterpolants, 517784 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 3 InterpolantComputations, 3 PerfectInterpolantSequences, 16/16 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Completed graceful shutdown