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/Problem10_label03_true-unreach-call.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-d380424 [2018-10-24 20:54:45,959 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-10-24 20:54:45,962 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-10-24 20:54:45,979 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-10-24 20:54:45,981 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-10-24 20:54:45,982 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-10-24 20:54:45,983 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-10-24 20:54:45,985 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-10-24 20:54:45,988 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-10-24 20:54:45,989 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-10-24 20:54:45,991 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-10-24 20:54:45,991 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-10-24 20:54:45,992 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-10-24 20:54:45,993 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-10-24 20:54:45,994 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-10-24 20:54:45,995 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-10-24 20:54:45,996 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-10-24 20:54:45,997 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-10-24 20:54:45,999 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-10-24 20:54:46,001 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-10-24 20:54:46,002 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-10-24 20:54:46,003 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-10-24 20:54:46,006 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-10-24 20:54:46,006 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-10-24 20:54:46,007 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-10-24 20:54:46,007 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-10-24 20:54:46,009 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-10-24 20:54:46,009 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-10-24 20:54:46,012 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-10-24 20:54:46,013 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-10-24 20:54:46,013 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-10-24 20:54:46,015 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-10-24 20:54:46,015 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-10-24 20:54:46,016 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-10-24 20:54:46,017 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-10-24 20:54:46,019 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-10-24 20:54:46,020 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 20:54:46,044 INFO L110 SettingsManager]: Loading preferences was successful [2018-10-24 20:54:46,045 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-10-24 20:54:46,045 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-10-24 20:54:46,046 INFO L133 SettingsManager]: * User list type=DISABLED [2018-10-24 20:54:46,047 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-10-24 20:54:46,047 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-10-24 20:54:46,047 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-10-24 20:54:46,047 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-10-24 20:54:46,047 INFO L133 SettingsManager]: * Log string format=TERM [2018-10-24 20:54:46,048 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-10-24 20:54:46,048 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-10-24 20:54:46,048 INFO L133 SettingsManager]: * Interval Domain=false [2018-10-24 20:54:46,050 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-10-24 20:54:46,050 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-10-24 20:54:46,050 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-10-24 20:54:46,050 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-10-24 20:54:46,051 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-10-24 20:54:46,051 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-10-24 20:54:46,051 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-10-24 20:54:46,051 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-10-24 20:54:46,051 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-10-24 20:54:46,051 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-10-24 20:54:46,053 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-10-24 20:54:46,053 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-10-24 20:54:46,053 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-10-24 20:54:46,054 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-10-24 20:54:46,054 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-10-24 20:54:46,054 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-10-24 20:54:46,054 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-10-24 20:54:46,054 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-10-24 20:54:46,055 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-10-24 20:54:46,055 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-10-24 20:54:46,055 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-10-24 20:54:46,055 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-10-24 20:54:46,130 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-10-24 20:54:46,148 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-10-24 20:54:46,152 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-10-24 20:54:46,153 INFO L271 PluginConnector]: Initializing CDTParser... [2018-10-24 20:54:46,154 INFO L276 PluginConnector]: CDTParser initialized [2018-10-24 20:54:46,154 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem10_label03_true-unreach-call.c [2018-10-24 20:54:46,221 INFO L218 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/38cd075fa/8c737a72c9d24ebdb0d7fcd6194840d3/FLAGcea761ea0 [2018-10-24 20:54:46,785 INFO L298 CDTParser]: Found 1 translation units. [2018-10-24 20:54:46,786 INFO L158 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem10_label03_true-unreach-call.c [2018-10-24 20:54:46,817 INFO L346 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/38cd075fa/8c737a72c9d24ebdb0d7fcd6194840d3/FLAGcea761ea0 [2018-10-24 20:54:46,843 INFO L354 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/38cd075fa/8c737a72c9d24ebdb0d7fcd6194840d3 [2018-10-24 20:54:46,860 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-10-24 20:54:46,862 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-10-24 20:54:46,866 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-10-24 20:54:46,866 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-10-24 20:54:46,871 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-10-24 20:54:46,872 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 08:54:46" (1/1) ... [2018-10-24 20:54:46,875 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7abe7212 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 08:54:46, skipping insertion in model container [2018-10-24 20:54:46,875 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 08:54:46" (1/1) ... [2018-10-24 20:54:46,889 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-10-24 20:54:46,954 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-10-24 20:54:47,439 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-24 20:54:47,444 INFO L189 MainTranslator]: Completed pre-run [2018-10-24 20:54:47,544 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-24 20:54:47,562 INFO L193 MainTranslator]: Completed translation [2018-10-24 20:54:47,562 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 08:54:47 WrapperNode [2018-10-24 20:54:47,562 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-10-24 20:54:47,563 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-10-24 20:54:47,564 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-10-24 20:54:47,564 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-10-24 20:54:47,573 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 08:54:47" (1/1) ... [2018-10-24 20:54:47,608 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 08:54:47" (1/1) ... [2018-10-24 20:54:47,783 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-10-24 20:54:47,783 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-10-24 20:54:47,784 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-10-24 20:54:47,784 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-10-24 20:54:47,795 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 08:54:47" (1/1) ... [2018-10-24 20:54:47,796 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 08:54:47" (1/1) ... [2018-10-24 20:54:47,802 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 08:54:47" (1/1) ... [2018-10-24 20:54:47,803 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 08:54:47" (1/1) ... [2018-10-24 20:54:47,841 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 08:54:47" (1/1) ... [2018-10-24 20:54:47,865 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 08:54:47" (1/1) ... [2018-10-24 20:54:47,879 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 08:54:47" (1/1) ... [2018-10-24 20:54:47,890 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-10-24 20:54:47,890 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-10-24 20:54:47,890 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-10-24 20:54:47,891 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-10-24 20:54:47,892 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 08:54:47" (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 20:54:47,970 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-10-24 20:54:47,971 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-10-24 20:54:47,971 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2018-10-24 20:54:47,971 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2018-10-24 20:54:47,971 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-10-24 20:54:47,972 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-10-24 20:54:47,972 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-10-24 20:54:47,972 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-10-24 20:54:51,252 INFO L341 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-10-24 20:54:51,253 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 08:54:51 BoogieIcfgContainer [2018-10-24 20:54:51,253 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-10-24 20:54:51,254 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-10-24 20:54:51,254 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-10-24 20:54:51,258 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-10-24 20:54:51,258 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.10 08:54:46" (1/3) ... [2018-10-24 20:54:51,259 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@19cf145a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 08:54:51, skipping insertion in model container [2018-10-24 20:54:51,259 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 08:54:47" (2/3) ... [2018-10-24 20:54:51,260 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@19cf145a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 08:54:51, skipping insertion in model container [2018-10-24 20:54:51,260 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 08:54:51" (3/3) ... [2018-10-24 20:54:51,262 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem10_label03_true-unreach-call.c [2018-10-24 20:54:51,273 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-10-24 20:54:51,282 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-10-24 20:54:51,300 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-10-24 20:54:51,338 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-10-24 20:54:51,338 INFO L383 AbstractCegarLoop]: Hoare is true [2018-10-24 20:54:51,338 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-10-24 20:54:51,339 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-10-24 20:54:51,339 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-10-24 20:54:51,339 INFO L387 AbstractCegarLoop]: Difference is false [2018-10-24 20:54:51,339 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-10-24 20:54:51,339 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-10-24 20:54:51,367 INFO L276 IsEmpty]: Start isEmpty. Operand 216 states. [2018-10-24 20:54:51,376 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2018-10-24 20:54:51,377 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 20:54:51,378 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] [2018-10-24 20:54:51,381 INFO L424 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 20:54:51,387 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 20:54:51,388 INFO L82 PathProgramCache]: Analyzing trace with hash 1405656705, now seen corresponding path program 1 times [2018-10-24 20:54:51,390 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-24 20:54:51,438 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 20:54:51,439 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 20:54:51,439 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 20:54:51,439 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-24 20:54:51,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 20:54:51,881 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 20:54:51,884 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-24 20:54:51,884 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-10-24 20:54:51,885 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-24 20:54:51,891 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-10-24 20:54:51,908 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-10-24 20:54:51,908 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-24 20:54:51,911 INFO L87 Difference]: Start difference. First operand 216 states. Second operand 4 states. [2018-10-24 20:54:54,918 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 20:54:54,918 INFO L93 Difference]: Finished difference Result 737 states and 1298 transitions. [2018-10-24 20:54:54,918 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-10-24 20:54:54,920 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 43 [2018-10-24 20:54:54,921 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 20:54:54,945 INFO L225 Difference]: With dead ends: 737 [2018-10-24 20:54:54,946 INFO L226 Difference]: Without dead ends: 515 [2018-10-24 20:54:54,953 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-24 20:54:54,974 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 515 states. [2018-10-24 20:54:55,038 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 515 to 356. [2018-10-24 20:54:55,039 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 356 states. [2018-10-24 20:54:55,043 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 356 states to 356 states and 613 transitions. [2018-10-24 20:54:55,045 INFO L78 Accepts]: Start accepts. Automaton has 356 states and 613 transitions. Word has length 43 [2018-10-24 20:54:55,046 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 20:54:55,046 INFO L481 AbstractCegarLoop]: Abstraction has 356 states and 613 transitions. [2018-10-24 20:54:55,046 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-10-24 20:54:55,046 INFO L276 IsEmpty]: Start isEmpty. Operand 356 states and 613 transitions. [2018-10-24 20:54:55,053 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2018-10-24 20:54:55,053 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 20:54:55,054 INFO L375 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 20:54:55,054 INFO L424 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 20:54:55,054 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 20:54:55,055 INFO L82 PathProgramCache]: Analyzing trace with hash -1018978157, now seen corresponding path program 1 times [2018-10-24 20:54:55,055 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-24 20:54:55,056 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 20:54:55,056 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 20:54:55,057 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 20:54:55,057 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-24 20:54:55,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 20:54:55,371 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 36 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-24 20:54:55,371 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-24 20:54:55,371 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-10-24 20:54:55,372 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-24 20:54:55,374 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-10-24 20:54:55,375 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-10-24 20:54:55,375 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-24 20:54:55,375 INFO L87 Difference]: Start difference. First operand 356 states and 613 transitions. Second operand 4 states. [2018-10-24 20:54:57,165 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 20:54:57,165 INFO L93 Difference]: Finished difference Result 1282 states and 2343 transitions. [2018-10-24 20:54:57,172 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-10-24 20:54:57,172 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 114 [2018-10-24 20:54:57,173 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 20:54:57,187 INFO L225 Difference]: With dead ends: 1282 [2018-10-24 20:54:57,187 INFO L226 Difference]: Without dead ends: 932 [2018-10-24 20:54:57,192 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-24 20:54:57,194 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 932 states. [2018-10-24 20:54:57,257 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 932 to 932. [2018-10-24 20:54:57,258 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 932 states. [2018-10-24 20:54:57,266 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 932 states to 932 states and 1438 transitions. [2018-10-24 20:54:57,267 INFO L78 Accepts]: Start accepts. Automaton has 932 states and 1438 transitions. Word has length 114 [2018-10-24 20:54:57,268 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 20:54:57,268 INFO L481 AbstractCegarLoop]: Abstraction has 932 states and 1438 transitions. [2018-10-24 20:54:57,268 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-10-24 20:54:57,268 INFO L276 IsEmpty]: Start isEmpty. Operand 932 states and 1438 transitions. [2018-10-24 20:54:57,281 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 173 [2018-10-24 20:54:57,281 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 20:54:57,282 INFO L375 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 20:54:57,282 INFO L424 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 20:54:57,283 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 20:54:57,283 INFO L82 PathProgramCache]: Analyzing trace with hash 671547815, now seen corresponding path program 1 times [2018-10-24 20:54:57,283 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-24 20:54:57,284 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 20:54:57,285 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 20:54:57,285 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 20:54:57,285 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-24 20:54:57,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 20:54:57,631 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 32 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2018-10-24 20:54:57,631 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-24 20:54:57,632 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-10-24 20:54:57,633 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 173 with the following transitions: [2018-10-24 20:54:57,635 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [9], [17], [25], [33], [41], [49], [57], [65], [73], [81], [89], [97], [105], [113], [121], [129], [137], [145], [153], [161], [169], [177], [185], [193], [201], [209], [217], [225], [233], [241], [245], [247], [250], [258], [266], [274], [282], [290], [298], [306], [314], [322], [330], [338], [346], [354], [362], [370], [378], [386], [394], [402], [410], [418], [426], [434], [442], [450], [458], [466], [474], [482], [490], [495], [499], [503], [507], [511], [515], [519], [523], [527], [531], [535], [539], [543], [547], [551], [555], [559], [563], [567], [571], [575], [579], [583], [587], [591], [595], [599], [603], [607], [611], [615], [619], [623], [627], [631], [635], [639], [643], [647], [651], [655], [659], [663], [667], [671], [675], [679], [683], [687], [691], [695], [699], [703], [707], [711], [715], [719], [723], [727], [730], [792], [796], [800], [806], [810], [812], [817], [818], [819], [821], [822] [2018-10-24 20:54:57,712 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-10-24 20:54:57,712 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-10-24 20:55:02,602 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-10-24 20:55:02,604 INFO L272 AbstractInterpreter]: Visited 133 different actions 133 times. Never merged. Never widened. Never found a fixpoint. Largest state had 24 variables. [2018-10-24 20:55:02,619 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 20:55:02,619 INFO L398 sIntCurrentIteration]: Generating AbsInt predicates [2018-10-24 20:55:05,788 INFO L232 lantSequenceWeakener]: Weakened 157 states. On average, predicates are now at 73.78% of their original sizes. [2018-10-24 20:55:05,788 INFO L411 sIntCurrentIteration]: Unifying AI predicates [2018-10-24 20:55:12,628 INFO L413 sIntCurrentIteration]: We have 171 unified AI predicates [2018-10-24 20:55:12,628 INFO L422 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-10-24 20:55:12,629 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-10-24 20:55:12,629 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [11] imperfect sequences [4] total 13 [2018-10-24 20:55:12,629 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-24 20:55:12,630 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2018-10-24 20:55:12,630 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2018-10-24 20:55:12,630 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=76, Unknown=0, NotChecked=0, Total=110 [2018-10-24 20:55:12,631 INFO L87 Difference]: Start difference. First operand 932 states and 1438 transitions. Second operand 11 states. [2018-10-24 20:55:27,134 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-10-24 20:56:05,277 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 20:56:05,278 INFO L93 Difference]: Finished difference Result 2007 states and 3124 transitions. [2018-10-24 20:56:05,278 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2018-10-24 20:56:05,278 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 172 [2018-10-24 20:56:05,279 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 20:56:05,285 INFO L225 Difference]: With dead ends: 2007 [2018-10-24 20:56:05,285 INFO L226 Difference]: Without dead ends: 1081 [2018-10-24 20:56:05,290 INFO L605 BasicCegarLoop]: 2 DeclaredPredicates, 176 GetRequests, 117 SyntacticMatches, 45 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 169 ImplicationChecksByTransitivity, 7.3s TimeCoverageRelationStatistics Valid=73, Invalid=167, Unknown=0, NotChecked=0, Total=240 [2018-10-24 20:56:05,291 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1081 states. [2018-10-24 20:56:05,346 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1081 to 1076. [2018-10-24 20:56:05,346 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1076 states. [2018-10-24 20:56:05,353 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1076 states to 1076 states and 1590 transitions. [2018-10-24 20:56:05,353 INFO L78 Accepts]: Start accepts. Automaton has 1076 states and 1590 transitions. Word has length 172 [2018-10-24 20:56:05,354 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 20:56:05,354 INFO L481 AbstractCegarLoop]: Abstraction has 1076 states and 1590 transitions. [2018-10-24 20:56:05,354 INFO L482 AbstractCegarLoop]: Interpolant automaton has 11 states. [2018-10-24 20:56:05,354 INFO L276 IsEmpty]: Start isEmpty. Operand 1076 states and 1590 transitions. [2018-10-24 20:56:05,360 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 219 [2018-10-24 20:56:05,360 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 20:56:05,360 INFO L375 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 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] [2018-10-24 20:56:05,361 INFO L424 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 20:56:05,361 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 20:56:05,361 INFO L82 PathProgramCache]: Analyzing trace with hash 254914584, now seen corresponding path program 1 times [2018-10-24 20:56:05,362 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-24 20:56:05,363 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 20:56:05,363 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 20:56:05,363 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 20:56:05,363 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-24 20:56:05,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 20:56:05,814 WARN L179 SmtUtils]: Spent 113.00 ms on a formula simplification that was a NOOP. DAG size: 12 [2018-10-24 20:56:05,990 WARN L179 SmtUtils]: Spent 115.00 ms on a formula simplification that was a NOOP. DAG size: 13 [2018-10-24 20:56:06,427 WARN L179 SmtUtils]: Spent 188.00 ms on a formula simplification that was a NOOP. DAG size: 18 [2018-10-24 20:56:06,744 INFO L134 CoverageAnalysis]: Checked inductivity of 152 backedges. 150 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-24 20:56:06,744 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-24 20:56:06,744 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-10-24 20:56:06,744 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 219 with the following transitions: [2018-10-24 20:56:06,745 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [9], [17], [25], [33], [41], [49], [57], [65], [73], [81], [89], [97], [105], [113], [121], [129], [137], [145], [153], [161], [169], [177], [185], [193], [201], [209], [217], [225], [233], [241], [245], [247], [250], [258], [266], [274], [282], [290], [298], [306], [314], [322], [330], [338], [346], [354], [362], [370], [378], [386], [394], [402], [410], [418], [426], [434], [442], [450], [458], [466], [474], [482], [490], [495], [499], [503], [507], [511], [515], [519], [523], [527], [531], [534], [535], [539], [543], [547], [551], [555], [559], [563], [567], [571], [575], [579], [583], [587], [591], [594], [792], [796], [800], [806], [810], [812], [817], [818], [819], [821], [822] [2018-10-24 20:56:06,751 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-10-24 20:56:06,751 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-10-24 20:56:08,274 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-10-24 20:56:21,527 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-10-24 20:56:21,528 INFO L272 AbstractInterpreter]: Visited 103 different actions 588 times. Merged at 5 different actions 25 times. Widened at 1 different actions 1 times. Found 1 fixpoints after 1 different actions. Largest state had 24 variables. [2018-10-24 20:56:21,536 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 20:56:21,536 INFO L398 sIntCurrentIteration]: Generating AbsInt predicates [2018-10-24 20:56:23,601 INFO L232 lantSequenceWeakener]: Weakened 33 states. On average, predicates are now at 75.62% of their original sizes. [2018-10-24 20:56:23,602 INFO L411 sIntCurrentIteration]: Unifying AI predicates [2018-10-24 20:56:48,919 INFO L413 sIntCurrentIteration]: We have 217 unified AI predicates [2018-10-24 20:56:48,919 INFO L422 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-10-24 20:56:48,919 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-10-24 20:56:48,919 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [19] imperfect sequences [11] total 28 [2018-10-24 20:56:48,920 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-24 20:56:48,920 INFO L460 AbstractCegarLoop]: Interpolant automaton has 19 states [2018-10-24 20:56:48,920 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2018-10-24 20:56:48,921 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=69, Invalid=273, Unknown=0, NotChecked=0, Total=342 [2018-10-24 20:56:48,921 INFO L87 Difference]: Start difference. First operand 1076 states and 1590 transitions. Second operand 19 states. Received shutdown request... [2018-10-24 20:58:43,409 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2018-10-24 20:58:43,410 WARN L550 AbstractCegarLoop]: Verification canceled [2018-10-24 20:58:43,415 WARN L205 ceAbstractionStarter]: Timeout [2018-10-24 20:58:43,416 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.10 08:58:43 BoogieIcfgContainer [2018-10-24 20:58:43,416 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-10-24 20:58:43,417 INFO L168 Benchmark]: Toolchain (without parser) took 236555.93 ms. Allocated memory was 1.5 GB in the beginning and 4.2 GB in the end (delta: 2.7 GB). Free memory was 1.4 GB in the beginning and 2.0 GB in the end (delta: -590.8 MB). Peak memory consumption was 2.1 GB. Max. memory is 7.1 GB. [2018-10-24 20:58:43,418 INFO L168 Benchmark]: CDTParser took 0.20 ms. Allocated memory is still 1.5 GB. Free memory is still 1.4 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-10-24 20:58:43,419 INFO L168 Benchmark]: CACSL2BoogieTranslator took 696.69 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: 31.7 MB). Peak memory consumption was 31.7 MB. Max. memory is 7.1 GB. [2018-10-24 20:58:43,420 INFO L168 Benchmark]: Boogie Procedure Inliner took 219.68 ms. Allocated memory was 1.5 GB in the beginning and 2.2 GB in the end (delta: 712.0 MB). Free memory was 1.4 GB in the beginning and 2.1 GB in the end (delta: -786.8 MB). Peak memory consumption was 18.9 MB. Max. memory is 7.1 GB. [2018-10-24 20:58:43,421 INFO L168 Benchmark]: Boogie Preprocessor took 106.54 ms. Allocated memory is still 2.2 GB. Free memory is still 2.1 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-10-24 20:58:43,421 INFO L168 Benchmark]: RCFGBuilder took 3362.94 ms. Allocated memory is still 2.2 GB. Free memory was 2.1 GB in the beginning and 2.0 GB in the end (delta: 119.5 MB). Peak memory consumption was 119.5 MB. Max. memory is 7.1 GB. [2018-10-24 20:58:43,422 INFO L168 Benchmark]: TraceAbstraction took 232161.61 ms. Allocated memory was 2.2 GB in the beginning and 4.2 GB in the end (delta: 1.9 GB). Free memory was 2.0 GB in the beginning and 2.0 GB in the end (delta: 44.7 MB). Peak memory consumption was 2.0 GB. Max. memory is 7.1 GB. [2018-10-24 20:58:43,427 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20 ms. Allocated memory is still 1.5 GB. Free memory is still 1.4 GB. There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 696.69 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: 31.7 MB). Peak memory consumption was 31.7 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 219.68 ms. Allocated memory was 1.5 GB in the beginning and 2.2 GB in the end (delta: 712.0 MB). Free memory was 1.4 GB in the beginning and 2.1 GB in the end (delta: -786.8 MB). Peak memory consumption was 18.9 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 106.54 ms. Allocated memory is still 2.2 GB. Free memory is still 2.1 GB. There was no memory consumed. Max. memory is 7.1 GB. * RCFGBuilder took 3362.94 ms. Allocated memory is still 2.2 GB. Free memory was 2.1 GB in the beginning and 2.0 GB in the end (delta: 119.5 MB). Peak memory consumption was 119.5 MB. Max. memory is 7.1 GB. * TraceAbstraction took 232161.61 ms. Allocated memory was 2.2 GB in the beginning and 4.2 GB in the end (delta: 1.9 GB). Free memory was 2.0 GB in the beginning and 2.0 GB in the end (delta: 44.7 MB). Peak memory consumption was 2.0 GB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResultAtElement [Line: 112]: Timeout (TraceAbstraction) Unable to prove that call of __VERIFIER_error() unreachable (line 112). Cancelled while BasicCegarLoop was constructing difference of abstraction (1076states) and FLOYD_HOARE automaton (currently 21 states, 19 states before enhancement),while ReachableStatesComputation was computing reachable states (1243 states constructedinput type IntersectNwa). - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 216 locations, 1 error locations. TIMEOUT Result, 232.0s OverallTime, 4 OverallIterations, 3 TraceHistogramMax, 172.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 539 SDtfs, 2675 SDslu, 578 SDs, 0 SdLazy, 3285 SolverSat, 730 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 85.2s Time, PredicateUnifierStatistics: 4 DeclaredPredicates, 410 GetRequests, 296 SyntacticMatches, 73 SemanticMatches, 41 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 437 ImplicationChecksByTransitivity, 33.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1076occurred in iteration=3, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 19.7s AbstIntTime, 2 AbstIntIterations, 2 AbstIntStrong, 0.9947986702525026 AbsIntWeakeningRatio, 0.11855670103092783 AbsIntAvgWeakeningVarsNumRemoved, 140.4922680412371 AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.2s AutomataMinimizationTime, 3 MinimizatonAttempts, 164 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 1.9s InterpolantComputationTime, 547 NumberOfCodeBlocks, 547 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 543 ConstructedInterpolants, 0 QuantifiedInterpolants, 793421 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 4 InterpolantComputations, 2 PerfectInterpolantSequences, 190/224 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Completed graceful shutdown