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/Problem11_label53_true-unreach-call.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-d380424 [2018-10-24 21:15:57,729 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-10-24 21:15:57,731 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-10-24 21:15:57,750 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-10-24 21:15:57,751 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-10-24 21:15:57,754 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-10-24 21:15:57,756 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-10-24 21:15:57,759 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-10-24 21:15:57,760 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-10-24 21:15:57,764 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-10-24 21:15:57,765 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-10-24 21:15:57,768 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-10-24 21:15:57,769 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-10-24 21:15:57,772 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-10-24 21:15:57,773 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-10-24 21:15:57,775 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-10-24 21:15:57,775 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-10-24 21:15:57,786 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-10-24 21:15:57,791 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-10-24 21:15:57,793 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-10-24 21:15:57,794 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-10-24 21:15:57,795 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-10-24 21:15:57,801 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-10-24 21:15:57,802 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-10-24 21:15:57,802 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-10-24 21:15:57,803 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-10-24 21:15:57,804 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-10-24 21:15:57,807 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-10-24 21:15:57,808 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-10-24 21:15:57,811 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-10-24 21:15:57,812 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-10-24 21:15:57,812 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-10-24 21:15:57,813 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-10-24 21:15:57,813 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-10-24 21:15:57,815 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-10-24 21:15:57,816 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-10-24 21:15:57,816 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 21:15:57,838 INFO L110 SettingsManager]: Loading preferences was successful [2018-10-24 21:15:57,839 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-10-24 21:15:57,839 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-10-24 21:15:57,840 INFO L133 SettingsManager]: * User list type=DISABLED [2018-10-24 21:15:57,840 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-10-24 21:15:57,840 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-10-24 21:15:57,840 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-10-24 21:15:57,841 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-10-24 21:15:57,841 INFO L133 SettingsManager]: * Log string format=TERM [2018-10-24 21:15:57,841 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-10-24 21:15:57,841 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-10-24 21:15:57,841 INFO L133 SettingsManager]: * Interval Domain=false [2018-10-24 21:15:57,842 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-10-24 21:15:57,842 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-10-24 21:15:57,843 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-10-24 21:15:57,843 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-10-24 21:15:57,843 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-10-24 21:15:57,843 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-10-24 21:15:57,843 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-10-24 21:15:57,844 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-10-24 21:15:57,844 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-10-24 21:15:57,844 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-10-24 21:15:57,844 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-10-24 21:15:57,845 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-10-24 21:15:57,845 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-10-24 21:15:57,845 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-10-24 21:15:57,845 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-10-24 21:15:57,845 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-10-24 21:15:57,846 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-10-24 21:15:57,846 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-10-24 21:15:57,846 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-10-24 21:15:57,846 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-10-24 21:15:57,846 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-10-24 21:15:57,847 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-10-24 21:15:57,894 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-10-24 21:15:57,909 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-10-24 21:15:57,912 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-10-24 21:15:57,913 INFO L271 PluginConnector]: Initializing CDTParser... [2018-10-24 21:15:57,914 INFO L276 PluginConnector]: CDTParser initialized [2018-10-24 21:15:57,914 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem11_label53_true-unreach-call.c [2018-10-24 21:15:57,966 INFO L218 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/6651e151f/9ce092323ce54ad8a27327fc6a2b30cb/FLAGdd9f76543 [2018-10-24 21:15:58,573 INFO L298 CDTParser]: Found 1 translation units. [2018-10-24 21:15:58,575 INFO L158 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem11_label53_true-unreach-call.c [2018-10-24 21:15:58,591 INFO L346 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/6651e151f/9ce092323ce54ad8a27327fc6a2b30cb/FLAGdd9f76543 [2018-10-24 21:15:58,608 INFO L354 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/6651e151f/9ce092323ce54ad8a27327fc6a2b30cb [2018-10-24 21:15:58,620 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-10-24 21:15:58,622 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-10-24 21:15:58,623 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-10-24 21:15:58,623 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-10-24 21:15:58,628 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-10-24 21:15:58,629 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 09:15:58" (1/1) ... [2018-10-24 21:15:58,632 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5dcd87c8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 09:15:58, skipping insertion in model container [2018-10-24 21:15:58,633 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 09:15:58" (1/1) ... [2018-10-24 21:15:58,645 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-10-24 21:15:58,739 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-10-24 21:15:59,320 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-24 21:15:59,327 INFO L189 MainTranslator]: Completed pre-run [2018-10-24 21:15:59,508 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-24 21:15:59,528 INFO L193 MainTranslator]: Completed translation [2018-10-24 21:15:59,529 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 09:15:59 WrapperNode [2018-10-24 21:15:59,529 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-10-24 21:15:59,530 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-10-24 21:15:59,530 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-10-24 21:15:59,530 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-10-24 21:15:59,540 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 09:15:59" (1/1) ... [2018-10-24 21:15:59,570 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 09:15:59" (1/1) ... [2018-10-24 21:15:59,833 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-10-24 21:15:59,834 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-10-24 21:15:59,834 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-10-24 21:15:59,834 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-10-24 21:15:59,846 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 09:15:59" (1/1) ... [2018-10-24 21:15:59,846 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 09:15:59" (1/1) ... [2018-10-24 21:15:59,858 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 09:15:59" (1/1) ... [2018-10-24 21:15:59,858 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 09:15:59" (1/1) ... [2018-10-24 21:15:59,921 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 09:15:59" (1/1) ... [2018-10-24 21:15:59,948 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 09:15:59" (1/1) ... [2018-10-24 21:15:59,967 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 09:15:59" (1/1) ... [2018-10-24 21:15:59,992 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-10-24 21:15:59,993 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-10-24 21:15:59,993 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-10-24 21:15:59,993 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-10-24 21:15:59,994 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 09:15:59" (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 21:16:00,056 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-10-24 21:16:00,057 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-10-24 21:16:00,057 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2018-10-24 21:16:00,057 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2018-10-24 21:16:00,058 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-10-24 21:16:00,058 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-10-24 21:16:00,058 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-10-24 21:16:00,058 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-10-24 21:16:04,839 INFO L341 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-10-24 21:16:04,840 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 09:16:04 BoogieIcfgContainer [2018-10-24 21:16:04,840 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-10-24 21:16:04,844 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-10-24 21:16:04,844 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-10-24 21:16:04,847 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-10-24 21:16:04,848 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.10 09:15:58" (1/3) ... [2018-10-24 21:16:04,849 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@60a19c63 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 09:16:04, skipping insertion in model container [2018-10-24 21:16:04,849 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 09:15:59" (2/3) ... [2018-10-24 21:16:04,849 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@60a19c63 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 09:16:04, skipping insertion in model container [2018-10-24 21:16:04,849 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 09:16:04" (3/3) ... [2018-10-24 21:16:04,853 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem11_label53_true-unreach-call.c [2018-10-24 21:16:04,862 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-10-24 21:16:04,870 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-10-24 21:16:04,888 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-10-24 21:16:04,927 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-10-24 21:16:04,927 INFO L383 AbstractCegarLoop]: Hoare is true [2018-10-24 21:16:04,927 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-10-24 21:16:04,928 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-10-24 21:16:04,928 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-10-24 21:16:04,928 INFO L387 AbstractCegarLoop]: Difference is false [2018-10-24 21:16:04,928 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-10-24 21:16:04,928 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-10-24 21:16:04,960 INFO L276 IsEmpty]: Start isEmpty. Operand 293 states. [2018-10-24 21:16:04,970 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2018-10-24 21:16:04,970 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 21:16:04,971 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] [2018-10-24 21:16:04,974 INFO L424 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 21:16:04,979 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 21:16:04,979 INFO L82 PathProgramCache]: Analyzing trace with hash 1916491172, now seen corresponding path program 1 times [2018-10-24 21:16:04,982 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-24 21:16:05,037 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 21:16:05,037 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 21:16:05,037 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 21:16:05,038 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-24 21:16:05,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 21:16:05,483 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 21:16:05,486 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-24 21:16:05,486 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-10-24 21:16:05,487 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-24 21:16:05,494 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-10-24 21:16:05,510 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-10-24 21:16:05,511 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-24 21:16:05,514 INFO L87 Difference]: Start difference. First operand 293 states. Second operand 4 states. [2018-10-24 21:16:09,251 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 21:16:09,252 INFO L93 Difference]: Finished difference Result 1001 states and 1780 transitions. [2018-10-24 21:16:09,252 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-10-24 21:16:09,253 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 54 [2018-10-24 21:16:09,254 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 21:16:09,278 INFO L225 Difference]: With dead ends: 1001 [2018-10-24 21:16:09,278 INFO L226 Difference]: Without dead ends: 702 [2018-10-24 21:16:09,289 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 21:16:09,312 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 702 states. [2018-10-24 21:16:09,381 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 702 to 699. [2018-10-24 21:16:09,383 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 699 states. [2018-10-24 21:16:09,388 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 699 states to 699 states and 1082 transitions. [2018-10-24 21:16:09,390 INFO L78 Accepts]: Start accepts. Automaton has 699 states and 1082 transitions. Word has length 54 [2018-10-24 21:16:09,390 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 21:16:09,391 INFO L481 AbstractCegarLoop]: Abstraction has 699 states and 1082 transitions. [2018-10-24 21:16:09,391 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-10-24 21:16:09,391 INFO L276 IsEmpty]: Start isEmpty. Operand 699 states and 1082 transitions. [2018-10-24 21:16:09,403 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 128 [2018-10-24 21:16:09,404 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 21:16:09,406 INFO L375 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2018-10-24 21:16:09,406 INFO L424 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 21:16:09,407 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 21:16:09,407 INFO L82 PathProgramCache]: Analyzing trace with hash 1310907987, now seen corresponding path program 1 times [2018-10-24 21:16:09,407 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-24 21:16:09,410 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 21:16:09,410 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 21:16:09,410 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 21:16:09,411 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-24 21:16:09,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 21:16:09,819 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 47 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-24 21:16:09,819 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-24 21:16:09,820 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-10-24 21:16:09,820 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-24 21:16:09,822 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-10-24 21:16:09,822 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-10-24 21:16:09,822 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-10-24 21:16:09,823 INFO L87 Difference]: Start difference. First operand 699 states and 1082 transitions. Second operand 6 states. [2018-10-24 21:16:14,481 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 21:16:14,481 INFO L93 Difference]: Finished difference Result 2534 states and 4100 transitions. [2018-10-24 21:16:14,481 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-10-24 21:16:14,482 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 127 [2018-10-24 21:16:14,482 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 21:16:14,495 INFO L225 Difference]: With dead ends: 2534 [2018-10-24 21:16:14,496 INFO L226 Difference]: Without dead ends: 1841 [2018-10-24 21:16:14,503 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2018-10-24 21:16:14,505 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1841 states. [2018-10-24 21:16:14,575 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1841 to 1815. [2018-10-24 21:16:14,576 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1815 states. [2018-10-24 21:16:14,587 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1815 states to 1815 states and 2683 transitions. [2018-10-24 21:16:14,587 INFO L78 Accepts]: Start accepts. Automaton has 1815 states and 2683 transitions. Word has length 127 [2018-10-24 21:16:14,587 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 21:16:14,588 INFO L481 AbstractCegarLoop]: Abstraction has 1815 states and 2683 transitions. [2018-10-24 21:16:14,588 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-10-24 21:16:14,588 INFO L276 IsEmpty]: Start isEmpty. Operand 1815 states and 2683 transitions. [2018-10-24 21:16:14,609 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 231 [2018-10-24 21:16:14,609 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 21:16:14,610 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 21:16:14,610 INFO L424 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 21:16:14,610 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 21:16:14,610 INFO L82 PathProgramCache]: Analyzing trace with hash -1917313452, now seen corresponding path program 1 times [2018-10-24 21:16:14,611 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-24 21:16:14,612 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 21:16:14,612 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 21:16:14,612 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 21:16:14,612 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-24 21:16:14,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 21:16:14,956 INFO L134 CoverageAnalysis]: Checked inductivity of 168 backedges. 97 proven. 0 refuted. 0 times theorem prover too weak. 71 trivial. 0 not checked. [2018-10-24 21:16:14,956 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-24 21:16:14,956 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-10-24 21:16:14,956 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-24 21:16:14,957 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-10-24 21:16:14,958 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-10-24 21:16:14,958 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-24 21:16:14,958 INFO L87 Difference]: Start difference. First operand 1815 states and 2683 transitions. Second operand 4 states. [2018-10-24 21:16:18,286 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 21:16:18,286 INFO L93 Difference]: Finished difference Result 4749 states and 7412 transitions. [2018-10-24 21:16:18,290 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-10-24 21:16:18,290 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 230 [2018-10-24 21:16:18,291 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 21:16:18,314 INFO L225 Difference]: With dead ends: 4749 [2018-10-24 21:16:18,314 INFO L226 Difference]: Without dead ends: 2940 [2018-10-24 21:16:18,327 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 21:16:18,333 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2940 states. [2018-10-24 21:16:18,417 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2940 to 2927. [2018-10-24 21:16:18,418 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2927 states. [2018-10-24 21:16:18,432 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2927 states to 2927 states and 4052 transitions. [2018-10-24 21:16:18,432 INFO L78 Accepts]: Start accepts. Automaton has 2927 states and 4052 transitions. Word has length 230 [2018-10-24 21:16:18,433 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 21:16:18,433 INFO L481 AbstractCegarLoop]: Abstraction has 2927 states and 4052 transitions. [2018-10-24 21:16:18,434 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-10-24 21:16:18,434 INFO L276 IsEmpty]: Start isEmpty. Operand 2927 states and 4052 transitions. [2018-10-24 21:16:18,442 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 237 [2018-10-24 21:16:18,442 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 21:16:18,442 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 21:16:18,443 INFO L424 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 21:16:18,443 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 21:16:18,443 INFO L82 PathProgramCache]: Analyzing trace with hash -20907064, now seen corresponding path program 1 times [2018-10-24 21:16:18,443 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-24 21:16:18,444 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 21:16:18,444 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 21:16:18,445 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 21:16:18,445 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-24 21:16:18,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 21:16:19,043 INFO L134 CoverageAnalysis]: Checked inductivity of 168 backedges. 166 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-24 21:16:19,044 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-24 21:16:19,044 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-10-24 21:16:19,045 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 237 with the following transitions: [2018-10-24 21:16:19,049 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], [249], [257], [265], [273], [281], [289], [297], [305], [313], [321], [329], [333], [335], [338], [346], [354], [362], [370], [378], [386], [394], [402], [410], [418], [426], [434], [442], [450], [458], [466], [474], [482], [490], [495], [499], [503], [507], [510], [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], [626], [630], [634], [638], [642], [646], [650], [653], [1084], [1088], [1092], [1098], [1102], [1104], [1109], [1110], [1111], [1113], [1114] [2018-10-24 21:16:19,147 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-10-24 21:16:19,147 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-10-24 21:16:21,996 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-10-24 21:16:24,530 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-10-24 21:16:24,532 INFO L272 AbstractInterpreter]: Visited 113 different actions 113 times. Never merged. Never widened. Never found a fixpoint. Largest state had 28 variables. [2018-10-24 21:16:24,563 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 21:16:24,563 INFO L398 sIntCurrentIteration]: Generating AbsInt predicates [2018-10-24 21:16:27,891 INFO L232 lantSequenceWeakener]: Weakened 228 states. On average, predicates are now at 73.67% of their original sizes. [2018-10-24 21:16:27,891 INFO L411 sIntCurrentIteration]: Unifying AI predicates [2018-10-24 21:16:28,417 INFO L413 sIntCurrentIteration]: We have 235 unified AI predicates [2018-10-24 21:16:28,421 INFO L422 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-10-24 21:16:28,422 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-10-24 21:16:28,422 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [6] total 11 [2018-10-24 21:16:28,422 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-24 21:16:28,423 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-10-24 21:16:28,423 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-10-24 21:16:28,423 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2018-10-24 21:16:28,424 INFO L87 Difference]: Start difference. First operand 2927 states and 4052 transitions. Second operand 7 states. [2018-10-24 21:17:17,770 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 21:17:17,770 INFO L93 Difference]: Finished difference Result 6040 states and 8357 transitions. [2018-10-24 21:17:17,771 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-10-24 21:17:17,771 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 236 [2018-10-24 21:17:17,771 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 21:17:17,788 INFO L225 Difference]: With dead ends: 6040 [2018-10-24 21:17:17,789 INFO L226 Difference]: Without dead ends: 3119 [2018-10-24 21:17:17,799 INFO L605 BasicCegarLoop]: 2 DeclaredPredicates, 236 GetRequests, 230 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=21, Invalid=35, Unknown=0, NotChecked=0, Total=56 [2018-10-24 21:17:17,802 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3119 states. [2018-10-24 21:17:17,872 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3119 to 3117. [2018-10-24 21:17:17,872 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3117 states. [2018-10-24 21:17:17,885 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3117 states to 3117 states and 4252 transitions. [2018-10-24 21:17:17,885 INFO L78 Accepts]: Start accepts. Automaton has 3117 states and 4252 transitions. Word has length 236 [2018-10-24 21:17:17,886 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 21:17:17,886 INFO L481 AbstractCegarLoop]: Abstraction has 3117 states and 4252 transitions. [2018-10-24 21:17:17,886 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-10-24 21:17:17,886 INFO L276 IsEmpty]: Start isEmpty. Operand 3117 states and 4252 transitions. [2018-10-24 21:17:17,894 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 290 [2018-10-24 21:17:17,894 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 21:17:17,894 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, 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, 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] [2018-10-24 21:17:17,895 INFO L424 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 21:17:17,895 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 21:17:17,895 INFO L82 PathProgramCache]: Analyzing trace with hash 1343138969, now seen corresponding path program 1 times [2018-10-24 21:17:17,895 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-24 21:17:17,896 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 21:17:17,897 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 21:17:17,897 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 21:17:17,897 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-24 21:17:17,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 21:17:18,488 INFO L134 CoverageAnalysis]: Checked inductivity of 202 backedges. 200 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-24 21:17:18,489 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-24 21:17:18,489 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-10-24 21:17:18,489 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 290 with the following transitions: [2018-10-24 21:17:18,490 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], [249], [257], [265], [273], [281], [289], [297], [305], [313], [321], [329], [333], [335], [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], [626], [630], [634], [638], [642], [646], [650], [653], [654], [658], [662], [666], [677], [688], [692], [696], [707], [711], [715], [719], [723], [727], [731], [735], [739], [743], [747], [750], [1084], [1088], [1092], [1098], [1102], [1104], [1109], [1110], [1111], [1113], [1114] [2018-10-24 21:17:18,496 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-10-24 21:17:18,497 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-10-24 21:17:21,773 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-10-24 21:17:35,861 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-10-24 21:17:35,861 INFO L272 AbstractInterpreter]: Visited 135 different actions 393 times. Merged at 5 different actions 10 times. Never widened. Found 1 fixpoints after 1 different actions. Largest state had 28 variables. [2018-10-24 21:17:35,870 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 21:17:35,870 INFO L398 sIntCurrentIteration]: Generating AbsInt predicates [2018-10-24 21:17:40,384 INFO L232 lantSequenceWeakener]: Weakened 57 states. On average, predicates are now at 76.55% of their original sizes. [2018-10-24 21:17:40,384 INFO L411 sIntCurrentIteration]: Unifying AI predicates [2018-10-24 21:17:57,559 INFO L413 sIntCurrentIteration]: We have 288 unified AI predicates [2018-10-24 21:17:57,559 INFO L422 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-10-24 21:17:57,559 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-10-24 21:17:57,559 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [22] imperfect sequences [6] total 26 [2018-10-24 21:17:57,560 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-24 21:17:57,560 INFO L460 AbstractCegarLoop]: Interpolant automaton has 22 states [2018-10-24 21:17:57,561 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2018-10-24 21:17:57,561 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=86, Invalid=376, Unknown=0, NotChecked=0, Total=462 [2018-10-24 21:17:57,561 INFO L87 Difference]: Start difference. First operand 3117 states and 4252 transitions. Second operand 22 states. Received shutdown request... [2018-10-24 21:19:55,620 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2018-10-24 21:19:55,620 WARN L550 AbstractCegarLoop]: Verification canceled [2018-10-24 21:19:55,626 WARN L205 ceAbstractionStarter]: Timeout [2018-10-24 21:19:55,626 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.10 09:19:55 BoogieIcfgContainer [2018-10-24 21:19:55,626 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-10-24 21:19:55,627 INFO L168 Benchmark]: Toolchain (without parser) took 237006.38 ms. Allocated memory was 1.5 GB in the beginning and 4.0 GB in the end (delta: 2.5 GB). Free memory was 1.4 GB in the beginning and 2.7 GB in the end (delta: -1.3 GB). Peak memory consumption was 1.2 GB. Max. memory is 7.1 GB. [2018-10-24 21:19:55,629 INFO L168 Benchmark]: CDTParser took 0.15 ms. Allocated memory is still 1.5 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-10-24 21:19:55,629 INFO L168 Benchmark]: CACSL2BoogieTranslator took 906.61 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: 52.8 MB). Peak memory consumption was 52.8 MB. Max. memory is 7.1 GB. [2018-10-24 21:19:55,630 INFO L168 Benchmark]: Boogie Procedure Inliner took 303.96 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 740.8 MB). Free memory was 1.4 GB in the beginning and 2.2 GB in the end (delta: -833.6 MB). Peak memory consumption was 24.3 MB. Max. memory is 7.1 GB. [2018-10-24 21:19:55,631 INFO L168 Benchmark]: Boogie Preprocessor took 158.44 ms. Allocated memory is still 2.3 GB. Free memory is still 2.2 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-10-24 21:19:55,632 INFO L168 Benchmark]: RCFGBuilder took 4847.05 ms. Allocated memory is still 2.3 GB. Free memory was 2.2 GB in the beginning and 2.0 GB in the end (delta: 190.4 MB). Peak memory consumption was 190.4 MB. Max. memory is 7.1 GB. [2018-10-24 21:19:55,632 INFO L168 Benchmark]: TraceAbstraction took 230782.47 ms. Allocated memory was 2.3 GB in the beginning and 4.0 GB in the end (delta: 1.7 GB). Free memory was 2.0 GB in the beginning and 2.7 GB in the end (delta: -662.0 MB). Peak memory consumption was 1.1 GB. Max. memory is 7.1 GB. [2018-10-24 21:19:55,637 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.15 ms. Allocated memory is still 1.5 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 906.61 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: 52.8 MB). Peak memory consumption was 52.8 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 303.96 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 740.8 MB). Free memory was 1.4 GB in the beginning and 2.2 GB in the end (delta: -833.6 MB). Peak memory consumption was 24.3 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 158.44 ms. Allocated memory is still 2.3 GB. Free memory is still 2.2 GB. There was no memory consumed. Max. memory is 7.1 GB. * RCFGBuilder took 4847.05 ms. Allocated memory is still 2.3 GB. Free memory was 2.2 GB in the beginning and 2.0 GB in the end (delta: 190.4 MB). Peak memory consumption was 190.4 MB. Max. memory is 7.1 GB. * TraceAbstraction took 230782.47 ms. Allocated memory was 2.3 GB in the beginning and 4.0 GB in the end (delta: 1.7 GB). Free memory was 2.0 GB in the beginning and 2.7 GB in the end (delta: -662.0 MB). Peak memory consumption was 1.1 GB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResultAtElement [Line: 147]: Timeout (TraceAbstraction) Unable to prove that call of __VERIFIER_error() unreachable (line 147). Cancelled while BasicCegarLoop was constructing difference of abstraction (3117states) and FLOYD_HOARE automaton (currently 18 states, 22 states before enhancement),while ReachableStatesComputation was computing reachable states (469 states constructedinput type IntersectNwa). - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 293 locations, 1 error locations. TIMEOUT Result, 230.7s OverallTime, 5 OverallIterations, 3 TraceHistogramMax, 179.2s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 1254 SDtfs, 3573 SDslu, 977 SDs, 0 SdLazy, 6348 SolverSat, 1249 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 68.2s Time, PredicateUnifierStatistics: 4 DeclaredPredicates, 554 GetRequests, 507 SyntacticMatches, 1 SemanticMatches, 46 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 158 ImplicationChecksByTransitivity, 24.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=3117occurred in iteration=4, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 22.8s AbstIntTime, 2 AbstIntIterations, 2 AbstIntStrong, 0.9961455582870499 AbsIntWeakeningRatio, 0.10707456978967496 AbsIntAvgWeakeningVarsNumRemoved, 685.453154875717 AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.3s AutomataMinimizationTime, 4 MinimizatonAttempts, 44 StatesRemovedByMinimization, 4 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 1.7s InterpolantComputationTime, 936 NumberOfCodeBlocks, 936 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 931 ConstructedInterpolants, 0 QuantifiedInterpolants, 617515 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 5 InterpolantComputations, 3 PerfectInterpolantSequences, 581/585 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Completed graceful shutdown