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/Problem14_label11_false-unreach-call_false-termination.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-d380424 [2018-10-24 18:28:48,881 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-10-24 18:28:48,884 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-10-24 18:28:48,897 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-10-24 18:28:48,897 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-10-24 18:28:48,898 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-10-24 18:28:48,900 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-10-24 18:28:48,901 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-10-24 18:28:48,903 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-10-24 18:28:48,904 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-10-24 18:28:48,905 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-10-24 18:28:48,905 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-10-24 18:28:48,906 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-10-24 18:28:48,907 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-10-24 18:28:48,908 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-10-24 18:28:48,909 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-10-24 18:28:48,910 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-10-24 18:28:48,911 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-10-24 18:28:48,913 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-10-24 18:28:48,916 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-10-24 18:28:48,919 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-10-24 18:28:48,921 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-10-24 18:28:48,925 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-10-24 18:28:48,925 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-10-24 18:28:48,926 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-10-24 18:28:48,926 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-10-24 18:28:48,929 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-10-24 18:28:48,933 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-10-24 18:28:48,934 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-10-24 18:28:48,935 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-10-24 18:28:48,936 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-10-24 18:28:48,938 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-10-24 18:28:48,939 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-10-24 18:28:48,941 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-10-24 18:28:48,942 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-10-24 18:28:48,942 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-10-24 18:28:48,943 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 18:28:48,972 INFO L110 SettingsManager]: Loading preferences was successful [2018-10-24 18:28:48,972 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-10-24 18:28:48,973 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-10-24 18:28:48,973 INFO L133 SettingsManager]: * User list type=DISABLED [2018-10-24 18:28:48,973 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-10-24 18:28:48,974 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-10-24 18:28:48,978 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-10-24 18:28:48,978 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-10-24 18:28:48,978 INFO L133 SettingsManager]: * Log string format=TERM [2018-10-24 18:28:48,978 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-10-24 18:28:48,978 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-10-24 18:28:48,979 INFO L133 SettingsManager]: * Interval Domain=false [2018-10-24 18:28:48,979 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-10-24 18:28:48,981 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-10-24 18:28:48,981 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-10-24 18:28:48,981 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-10-24 18:28:48,981 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-10-24 18:28:48,982 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-10-24 18:28:48,982 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-10-24 18:28:48,982 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-10-24 18:28:48,982 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-10-24 18:28:48,982 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-10-24 18:28:48,983 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-10-24 18:28:48,984 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-10-24 18:28:48,984 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-10-24 18:28:48,984 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-10-24 18:28:48,985 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-10-24 18:28:48,985 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-10-24 18:28:48,985 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-10-24 18:28:48,985 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-10-24 18:28:48,985 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-10-24 18:28:48,986 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-10-24 18:28:48,986 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-10-24 18:28:48,986 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-10-24 18:28:49,047 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-10-24 18:28:49,064 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-10-24 18:28:49,069 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-10-24 18:28:49,070 INFO L271 PluginConnector]: Initializing CDTParser... [2018-10-24 18:28:49,071 INFO L276 PluginConnector]: CDTParser initialized [2018-10-24 18:28:49,072 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem14_label11_false-unreach-call_false-termination.c [2018-10-24 18:28:49,137 INFO L218 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/7be05386d/3d6325d6a89f4edcac9bd30c74fef471/FLAG6bafc6871 [2018-10-24 18:28:49,746 INFO L298 CDTParser]: Found 1 translation units. [2018-10-24 18:28:49,746 INFO L158 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem14_label11_false-unreach-call_false-termination.c [2018-10-24 18:28:49,763 INFO L346 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/7be05386d/3d6325d6a89f4edcac9bd30c74fef471/FLAG6bafc6871 [2018-10-24 18:28:49,782 INFO L354 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/7be05386d/3d6325d6a89f4edcac9bd30c74fef471 [2018-10-24 18:28:49,795 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-10-24 18:28:49,797 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-10-24 18:28:49,798 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-10-24 18:28:49,798 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-10-24 18:28:49,802 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-10-24 18:28:49,803 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 06:28:49" (1/1) ... [2018-10-24 18:28:49,807 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@28a8effd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 06:28:49, skipping insertion in model container [2018-10-24 18:28:49,807 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 06:28:49" (1/1) ... [2018-10-24 18:28:49,817 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-10-24 18:28:49,900 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-10-24 18:28:50,413 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-24 18:28:50,418 INFO L189 MainTranslator]: Completed pre-run [2018-10-24 18:28:50,594 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-24 18:28:50,614 INFO L193 MainTranslator]: Completed translation [2018-10-24 18:28:50,615 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 06:28:50 WrapperNode [2018-10-24 18:28:50,615 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-10-24 18:28:50,616 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-10-24 18:28:50,617 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-10-24 18:28:50,617 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-10-24 18:28:50,628 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 06:28:50" (1/1) ... [2018-10-24 18:28:50,664 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 06:28:50" (1/1) ... [2018-10-24 18:28:50,854 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-10-24 18:28:50,857 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-10-24 18:28:50,857 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-10-24 18:28:50,857 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-10-24 18:28:50,869 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 06:28:50" (1/1) ... [2018-10-24 18:28:50,870 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 06:28:50" (1/1) ... [2018-10-24 18:28:50,877 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 06:28:50" (1/1) ... [2018-10-24 18:28:50,877 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 06:28:50" (1/1) ... [2018-10-24 18:28:50,910 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 06:28:50" (1/1) ... [2018-10-24 18:28:50,929 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 06:28:50" (1/1) ... [2018-10-24 18:28:50,949 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 06:28:50" (1/1) ... [2018-10-24 18:28:50,969 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-10-24 18:28:50,969 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-10-24 18:28:50,969 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-10-24 18:28:50,970 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-10-24 18:28:50,970 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 06:28:50" (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 18:28:51,029 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-10-24 18:28:51,029 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-10-24 18:28:51,029 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2018-10-24 18:28:51,030 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2018-10-24 18:28:51,030 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-10-24 18:28:51,030 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-10-24 18:28:51,030 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-10-24 18:28:51,031 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-10-24 18:28:54,794 INFO L341 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-10-24 18:28:54,795 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 06:28:54 BoogieIcfgContainer [2018-10-24 18:28:54,795 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-10-24 18:28:54,798 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-10-24 18:28:54,799 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-10-24 18:28:54,803 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-10-24 18:28:54,803 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.10 06:28:49" (1/3) ... [2018-10-24 18:28:54,804 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@55525b26 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 06:28:54, skipping insertion in model container [2018-10-24 18:28:54,804 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 06:28:50" (2/3) ... [2018-10-24 18:28:54,804 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@55525b26 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 06:28:54, skipping insertion in model container [2018-10-24 18:28:54,805 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 06:28:54" (3/3) ... [2018-10-24 18:28:54,807 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem14_label11_false-unreach-call_false-termination.c [2018-10-24 18:28:54,816 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-10-24 18:28:54,825 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-10-24 18:28:54,843 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-10-24 18:28:54,882 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-10-24 18:28:54,882 INFO L383 AbstractCegarLoop]: Hoare is true [2018-10-24 18:28:54,882 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-10-24 18:28:54,883 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-10-24 18:28:54,883 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-10-24 18:28:54,883 INFO L387 AbstractCegarLoop]: Difference is false [2018-10-24 18:28:54,883 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-10-24 18:28:54,883 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-10-24 18:28:54,913 INFO L276 IsEmpty]: Start isEmpty. Operand 255 states. [2018-10-24 18:28:54,920 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2018-10-24 18:28:54,920 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 18:28:54,922 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] [2018-10-24 18:28:54,924 INFO L424 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 18:28:54,930 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 18:28:54,930 INFO L82 PathProgramCache]: Analyzing trace with hash 177535516, now seen corresponding path program 1 times [2018-10-24 18:28:54,933 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-24 18:28:54,991 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 18:28:54,992 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 18:28:54,992 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 18:28:54,992 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-24 18:28:55,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 18:28:55,393 WARN L179 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 8 DAG size of output: 3 [2018-10-24 18:28:55,408 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 18:28:55,411 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-24 18:28:55,411 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-10-24 18:28:55,411 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-24 18:28:55,417 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-10-24 18:28:55,435 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-10-24 18:28:55,436 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-24 18:28:55,439 INFO L87 Difference]: Start difference. First operand 255 states. Second operand 4 states. [2018-10-24 18:28:58,475 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 18:28:58,475 INFO L93 Difference]: Finished difference Result 894 states and 1611 transitions. [2018-10-24 18:28:58,478 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-10-24 18:28:58,479 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 28 [2018-10-24 18:28:58,479 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 18:28:58,502 INFO L225 Difference]: With dead ends: 894 [2018-10-24 18:28:58,503 INFO L226 Difference]: Without dead ends: 633 [2018-10-24 18:28:58,511 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 18:28:58,530 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 633 states. [2018-10-24 18:28:58,611 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 633 to 633. [2018-10-24 18:28:58,613 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 633 states. [2018-10-24 18:28:58,619 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 633 states to 633 states and 962 transitions. [2018-10-24 18:28:58,621 INFO L78 Accepts]: Start accepts. Automaton has 633 states and 962 transitions. Word has length 28 [2018-10-24 18:28:58,621 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 18:28:58,622 INFO L481 AbstractCegarLoop]: Abstraction has 633 states and 962 transitions. [2018-10-24 18:28:58,622 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-10-24 18:28:58,622 INFO L276 IsEmpty]: Start isEmpty. Operand 633 states and 962 transitions. [2018-10-24 18:28:58,631 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 142 [2018-10-24 18:28:58,631 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 18:28:58,632 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 18:28:58,632 INFO L424 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 18:28:58,632 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 18:28:58,633 INFO L82 PathProgramCache]: Analyzing trace with hash 578252947, now seen corresponding path program 1 times [2018-10-24 18:28:58,633 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-24 18:28:58,634 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 18:28:58,634 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 18:28:58,634 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 18:28:58,634 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-24 18:28:58,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 18:28:58,961 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 21 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-24 18:28:58,962 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-24 18:28:58,962 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-10-24 18:28:58,962 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-24 18:28:58,964 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-10-24 18:28:58,965 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-10-24 18:28:58,965 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-24 18:28:58,965 INFO L87 Difference]: Start difference. First operand 633 states and 962 transitions. Second operand 4 states. [2018-10-24 18:29:02,052 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 18:29:02,053 INFO L93 Difference]: Finished difference Result 2358 states and 3741 transitions. [2018-10-24 18:29:02,053 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-10-24 18:29:02,053 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 141 [2018-10-24 18:29:02,054 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 18:29:02,071 INFO L225 Difference]: With dead ends: 2358 [2018-10-24 18:29:02,071 INFO L226 Difference]: Without dead ends: 1731 [2018-10-24 18:29:02,078 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 18:29:02,080 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1731 states. [2018-10-24 18:29:02,159 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1731 to 1731. [2018-10-24 18:29:02,159 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1731 states. [2018-10-24 18:29:02,170 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1731 states to 1731 states and 2519 transitions. [2018-10-24 18:29:02,171 INFO L78 Accepts]: Start accepts. Automaton has 1731 states and 2519 transitions. Word has length 141 [2018-10-24 18:29:02,171 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 18:29:02,172 INFO L481 AbstractCegarLoop]: Abstraction has 1731 states and 2519 transitions. [2018-10-24 18:29:02,172 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-10-24 18:29:02,172 INFO L276 IsEmpty]: Start isEmpty. Operand 1731 states and 2519 transitions. [2018-10-24 18:29:02,189 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 216 [2018-10-24 18:29:02,190 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 18:29:02,190 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-24 18:29:02,191 INFO L424 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 18:29:02,191 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 18:29:02,191 INFO L82 PathProgramCache]: Analyzing trace with hash -138677585, now seen corresponding path program 1 times [2018-10-24 18:29:02,191 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-24 18:29:02,192 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 18:29:02,193 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 18:29:02,193 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 18:29:02,193 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-24 18:29:02,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 18:29:02,509 INFO L134 CoverageAnalysis]: Checked inductivity of 116 backedges. 45 proven. 0 refuted. 0 times theorem prover too weak. 71 trivial. 0 not checked. [2018-10-24 18:29:02,510 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-24 18:29:02,510 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-10-24 18:29:02,510 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-24 18:29:02,512 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-10-24 18:29:02,513 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-10-24 18:29:02,513 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-24 18:29:02,513 INFO L87 Difference]: Start difference. First operand 1731 states and 2519 transitions. Second operand 4 states. [2018-10-24 18:29:05,336 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 18:29:05,336 INFO L93 Difference]: Finished difference Result 5832 states and 9044 transitions. [2018-10-24 18:29:05,340 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-10-24 18:29:05,340 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 215 [2018-10-24 18:29:05,341 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 18:29:05,378 INFO L225 Difference]: With dead ends: 5832 [2018-10-24 18:29:05,379 INFO L226 Difference]: Without dead ends: 4107 [2018-10-24 18:29:05,399 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 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 18:29:05,403 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4107 states. [2018-10-24 18:29:05,517 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4107 to 4107. [2018-10-24 18:29:05,518 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4107 states. [2018-10-24 18:29:05,538 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4107 states to 4107 states and 5921 transitions. [2018-10-24 18:29:05,540 INFO L78 Accepts]: Start accepts. Automaton has 4107 states and 5921 transitions. Word has length 215 [2018-10-24 18:29:05,541 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 18:29:05,541 INFO L481 AbstractCegarLoop]: Abstraction has 4107 states and 5921 transitions. [2018-10-24 18:29:05,541 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-10-24 18:29:05,541 INFO L276 IsEmpty]: Start isEmpty. Operand 4107 states and 5921 transitions. [2018-10-24 18:29:05,551 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 242 [2018-10-24 18:29:05,552 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 18:29:05,552 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, 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, 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] [2018-10-24 18:29:05,552 INFO L424 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 18:29:05,553 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 18:29:05,553 INFO L82 PathProgramCache]: Analyzing trace with hash 801110427, now seen corresponding path program 1 times [2018-10-24 18:29:05,553 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-24 18:29:05,554 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 18:29:05,554 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 18:29:05,555 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 18:29:05,555 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-24 18:29:05,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 18:29:06,209 INFO L134 CoverageAnalysis]: Checked inductivity of 142 backedges. 140 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-24 18:29:06,209 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-24 18:29:06,209 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-10-24 18:29:06,210 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 242 with the following transitions: [2018-10-24 18:29:06,213 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [9], [17], [25], [33], [41], [49], [57], [65], [73], [81], [89], [97], [105], [113], [121], [125], [127], [130], [138], [146], [154], [162], [170], [178], [186], [194], [202], [210], [218], [226], [234], [242], [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], [614], [615], [619], [623], [627], [631], [635], [639], [643], [647], [651], [655], [659], [663], [666], [948], [952], [956], [962], [966], [968], [973], [974], [975], [977], [978] [2018-10-24 18:29:06,287 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-10-24 18:29:06,287 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-10-24 18:29:08,832 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-10-24 18:29:11,543 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-10-24 18:29:11,545 INFO L272 AbstractInterpreter]: Visited 118 different actions 118 times. Never merged. Never widened. Never found a fixpoint. Largest state had 24 variables. [2018-10-24 18:29:11,588 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 18:29:11,588 INFO L398 sIntCurrentIteration]: Generating AbsInt predicates [2018-10-24 18:29:14,821 INFO L232 lantSequenceWeakener]: Weakened 233 states. On average, predicates are now at 77.55% of their original sizes. [2018-10-24 18:29:14,821 INFO L411 sIntCurrentIteration]: Unifying AI predicates [2018-10-24 18:29:15,276 INFO L413 sIntCurrentIteration]: We have 240 unified AI predicates [2018-10-24 18:29:15,277 INFO L422 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-10-24 18:29:15,278 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-10-24 18:29:15,278 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [11] total 16 [2018-10-24 18:29:15,278 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-24 18:29:15,279 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-10-24 18:29:15,279 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-10-24 18:29:15,279 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2018-10-24 18:29:15,279 INFO L87 Difference]: Start difference. First operand 4107 states and 5921 transitions. Second operand 7 states. [2018-10-24 18:29:29,509 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 18:29:29,509 INFO L93 Difference]: Finished difference Result 8393 states and 12078 transitions. [2018-10-24 18:29:29,509 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-10-24 18:29:29,509 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 241 [2018-10-24 18:29:29,510 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 18:29:29,536 INFO L225 Difference]: With dead ends: 8393 [2018-10-24 18:29:29,536 INFO L226 Difference]: Without dead ends: 4292 [2018-10-24 18:29:29,557 INFO L605 BasicCegarLoop]: 2 DeclaredPredicates, 241 GetRequests, 235 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 18:29:29,561 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4292 states. [2018-10-24 18:29:29,664 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4292 to 4290. [2018-10-24 18:29:29,664 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4290 states. [2018-10-24 18:29:29,678 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4290 states to 4290 states and 6112 transitions. [2018-10-24 18:29:29,678 INFO L78 Accepts]: Start accepts. Automaton has 4290 states and 6112 transitions. Word has length 241 [2018-10-24 18:29:29,679 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 18:29:29,679 INFO L481 AbstractCegarLoop]: Abstraction has 4290 states and 6112 transitions. [2018-10-24 18:29:29,679 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-10-24 18:29:29,679 INFO L276 IsEmpty]: Start isEmpty. Operand 4290 states and 6112 transitions. [2018-10-24 18:29:29,689 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 327 [2018-10-24 18:29:29,689 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 18:29:29,690 INFO L375 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 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, 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 18:29:29,690 INFO L424 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 18:29:29,690 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 18:29:29,691 INFO L82 PathProgramCache]: Analyzing trace with hash 2059096588, now seen corresponding path program 1 times [2018-10-24 18:29:29,691 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-24 18:29:29,692 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 18:29:29,692 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 18:29:29,692 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 18:29:29,692 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-24 18:29:29,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 18:29:30,171 WARN L179 SmtUtils]: Spent 104.00 ms on a formula simplification that was a NOOP. DAG size: 13 [2018-10-24 18:29:30,385 WARN L179 SmtUtils]: Spent 126.00 ms on a formula simplification that was a NOOP. DAG size: 15 [2018-10-24 18:29:30,623 WARN L179 SmtUtils]: Spent 124.00 ms on a formula simplification that was a NOOP. DAG size: 13 [2018-10-24 18:29:31,588 INFO L134 CoverageAnalysis]: Checked inductivity of 333 backedges. 151 proven. 177 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2018-10-24 18:29:31,589 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-24 18:29:31,589 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-10-24 18:29:31,589 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 327 with the following transitions: [2018-10-24 18:29:31,590 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [9], [17], [25], [33], [41], [49], [57], [65], [73], [81], [89], [97], [105], [113], [121], [125], [127], [130], [138], [146], [154], [162], [170], [178], [186], [194], [202], [210], [218], [226], [234], [242], [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], [554], [555], [559], [563], [567], [571], [575], [579], [583], [587], [591], [595], [599], [603], [607], [611], [614], [615], [619], [623], [627], [631], [635], [639], [643], [647], [651], [655], [659], [663], [666], [948], [952], [956], [962], [966], [968], [973], [974], [975], [977], [978] [2018-10-24 18:29:31,597 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-10-24 18:29:31,597 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-10-24 18:29:33,839 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-10-24 18:29:38,598 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-10-24 18:29:38,598 INFO L272 AbstractInterpreter]: Visited 122 different actions 237 times. Merged at 4 different actions 4 times. Never widened. Found 1 fixpoints after 1 different actions. Largest state had 24 variables. [2018-10-24 18:29:38,605 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 18:29:38,605 INFO L398 sIntCurrentIteration]: Generating AbsInt predicates [2018-10-24 18:29:41,233 INFO L232 lantSequenceWeakener]: Weakened 152 states. On average, predicates are now at 77.97% of their original sizes. [2018-10-24 18:29:41,234 INFO L411 sIntCurrentIteration]: Unifying AI predicates [2018-10-24 18:30:04,290 INFO L413 sIntCurrentIteration]: We have 325 unified AI predicates [2018-10-24 18:30:04,291 INFO L422 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-10-24 18:30:04,291 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-10-24 18:30:04,291 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [24] imperfect sequences [12] total 34 [2018-10-24 18:30:04,292 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-24 18:30:04,292 INFO L460 AbstractCegarLoop]: Interpolant automaton has 24 states [2018-10-24 18:30:04,292 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2018-10-24 18:30:04,293 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=110, Invalid=442, Unknown=0, NotChecked=0, Total=552 [2018-10-24 18:30:04,293 INFO L87 Difference]: Start difference. First operand 4290 states and 6112 transitions. Second operand 24 states. [2018-10-24 18:31:57,498 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 18:31:57,499 INFO L93 Difference]: Finished difference Result 8954 states and 12684 transitions. [2018-10-24 18:31:57,499 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2018-10-24 18:31:57,499 INFO L78 Accepts]: Start accepts. Automaton has 24 states. Word has length 326 [2018-10-24 18:31:57,499 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 18:31:57,518 INFO L225 Difference]: With dead ends: 8954 [2018-10-24 18:31:57,518 INFO L226 Difference]: Without dead ends: 4295 [2018-10-24 18:31:57,538 INFO L605 BasicCegarLoop]: 2 DeclaredPredicates, 339 GetRequests, 283 SyntacticMatches, 20 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 345 ImplicationChecksByTransitivity, 27.3s TimeCoverageRelationStatistics Valid=248, Invalid=1158, Unknown=0, NotChecked=0, Total=1406 [2018-10-24 18:31:57,541 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4295 states. [2018-10-24 18:31:57,676 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4295 to 4290. [2018-10-24 18:31:57,676 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4290 states. [2018-10-24 18:31:57,688 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4290 states to 4290 states and 6106 transitions. [2018-10-24 18:31:57,688 INFO L78 Accepts]: Start accepts. Automaton has 4290 states and 6106 transitions. Word has length 326 [2018-10-24 18:31:57,688 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 18:31:57,689 INFO L481 AbstractCegarLoop]: Abstraction has 4290 states and 6106 transitions. [2018-10-24 18:31:57,690 INFO L482 AbstractCegarLoop]: Interpolant automaton has 24 states. [2018-10-24 18:31:57,690 INFO L276 IsEmpty]: Start isEmpty. Operand 4290 states and 6106 transitions. [2018-10-24 18:31:57,704 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 353 [2018-10-24 18:31:57,704 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 18:31:57,705 INFO L375 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-24 18:31:57,705 INFO L424 AbstractCegarLoop]: === Iteration 6 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 18:31:57,705 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 18:31:57,706 INFO L82 PathProgramCache]: Analyzing trace with hash -774588128, now seen corresponding path program 1 times [2018-10-24 18:31:57,706 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-24 18:31:57,707 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 18:31:57,707 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 18:31:57,707 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 18:31:57,707 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-24 18:31:57,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 18:31:58,242 WARN L179 SmtUtils]: Spent 123.00 ms on a formula simplification that was a NOOP. DAG size: 13 [2018-10-24 18:31:58,427 WARN L179 SmtUtils]: Spent 118.00 ms on a formula simplification that was a NOOP. DAG size: 15 [2018-10-24 18:31:58,659 WARN L179 SmtUtils]: Spent 121.00 ms on a formula simplification that was a NOOP. DAG size: 13 [2018-10-24 18:31:59,461 INFO L134 CoverageAnalysis]: Checked inductivity of 374 backedges. 76 proven. 293 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2018-10-24 18:31:59,461 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-24 18:31:59,462 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-10-24 18:31:59,462 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 353 with the following transitions: [2018-10-24 18:31:59,462 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [9], [17], [25], [33], [41], [49], [57], [65], [73], [81], [89], [97], [105], [113], [121], [125], [127], [130], [138], [146], [154], [162], [170], [178], [186], [194], [202], [210], [218], [226], [234], [242], [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], [614], [615], [619], [623], [627], [631], [635], [639], [643], [647], [651], [655], [658], [659], [663], [666], [948], [952], [956], [962], [966], [968], [973], [974], [975], [977], [978] [2018-10-24 18:31:59,466 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-10-24 18:31:59,467 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-10-24 18:32:00,927 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-10-24 18:32:06,764 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-10-24 18:32:06,765 INFO L272 AbstractInterpreter]: Visited 122 different actions 238 times. Merged at 5 different actions 5 times. Never widened. Found 1 fixpoints after 1 different actions. Largest state had 24 variables. [2018-10-24 18:32:06,774 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 18:32:06,774 INFO L398 sIntCurrentIteration]: Generating AbsInt predicates [2018-10-24 18:32:10,191 INFO L232 lantSequenceWeakener]: Weakened 220 states. On average, predicates are now at 77.69% of their original sizes. [2018-10-24 18:32:10,191 INFO L411 sIntCurrentIteration]: Unifying AI predicates [2018-10-24 18:32:16,499 INFO L413 sIntCurrentIteration]: We have 351 unified AI predicates [2018-10-24 18:32:16,500 INFO L422 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-10-24 18:32:16,500 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-10-24 18:32:16,500 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [17] imperfect sequences [15] total 30 [2018-10-24 18:32:16,500 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-24 18:32:16,501 INFO L460 AbstractCegarLoop]: Interpolant automaton has 17 states [2018-10-24 18:32:16,501 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2018-10-24 18:32:16,501 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=56, Invalid=216, Unknown=0, NotChecked=0, Total=272 [2018-10-24 18:32:16,503 INFO L87 Difference]: Start difference. First operand 4290 states and 6106 transitions. Second operand 17 states. Received shutdown request... [2018-10-24 18:32:48,278 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2018-10-24 18:32:48,279 WARN L550 AbstractCegarLoop]: Verification canceled [2018-10-24 18:32:48,284 WARN L205 ceAbstractionStarter]: Timeout [2018-10-24 18:32:48,284 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.10 06:32:48 BoogieIcfgContainer [2018-10-24 18:32:48,284 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-10-24 18:32:48,285 INFO L168 Benchmark]: Toolchain (without parser) took 238489.81 ms. Allocated memory was 1.5 GB in the beginning and 4.2 GB in the end (delta: 2.6 GB). Free memory was 1.4 GB in the beginning and 3.5 GB in the end (delta: -2.0 GB). Peak memory consumption was 585.2 MB. Max. memory is 7.1 GB. [2018-10-24 18:32:48,286 INFO L168 Benchmark]: CDTParser took 0.56 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 18:32:48,287 INFO L168 Benchmark]: CACSL2BoogieTranslator took 818.10 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 18:32:48,288 INFO L168 Benchmark]: Boogie Procedure Inliner took 240.33 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 748.2 MB). Free memory was 1.4 GB in the beginning and 2.2 GB in the end (delta: -845.4 MB). Peak memory consumption was 20.4 MB. Max. memory is 7.1 GB. [2018-10-24 18:32:48,289 INFO L168 Benchmark]: Boogie Preprocessor took 111.76 ms. Allocated memory is still 2.3 GB. Free memory was 2.2 GB in the beginning and 2.2 GB in the end (delta: 13.3 MB). Peak memory consumption was 13.3 MB. Max. memory is 7.1 GB. [2018-10-24 18:32:48,290 INFO L168 Benchmark]: RCFGBuilder took 3826.42 ms. Allocated memory is still 2.3 GB. Free memory was 2.2 GB in the beginning and 2.1 GB in the end (delta: 117.3 MB). Peak memory consumption was 117.3 MB. Max. memory is 7.1 GB. [2018-10-24 18:32:48,290 INFO L168 Benchmark]: TraceAbstraction took 233485.82 ms. Allocated memory was 2.3 GB in the beginning and 4.2 GB in the end (delta: 1.9 GB). Free memory was 2.1 GB in the beginning and 3.5 GB in the end (delta: -1.4 GB). Peak memory consumption was 498.9 MB. Max. memory is 7.1 GB. [2018-10-24 18:32:48,297 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.56 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 818.10 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 240.33 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 748.2 MB). Free memory was 1.4 GB in the beginning and 2.2 GB in the end (delta: -845.4 MB). Peak memory consumption was 20.4 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 111.76 ms. Allocated memory is still 2.3 GB. Free memory was 2.2 GB in the beginning and 2.2 GB in the end (delta: 13.3 MB). Peak memory consumption was 13.3 MB. Max. memory is 7.1 GB. * RCFGBuilder took 3826.42 ms. Allocated memory is still 2.3 GB. Free memory was 2.2 GB in the beginning and 2.1 GB in the end (delta: 117.3 MB). Peak memory consumption was 117.3 MB. Max. memory is 7.1 GB. * TraceAbstraction took 233485.82 ms. Allocated memory was 2.3 GB in the beginning and 4.2 GB in the end (delta: 1.9 GB). Free memory was 2.1 GB in the beginning and 3.5 GB in the end (delta: -1.4 GB). Peak memory consumption was 498.9 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResultAtElement [Line: 67]: Timeout (TraceAbstraction) Unable to prove that call of __VERIFIER_error() unreachable (line 67). Cancelled while BasicCegarLoop was constructing difference of abstraction (4290states) and FLOYD_HOARE automaton (currently 10 states, 17 states before enhancement),while ReachableStatesComputation was computing reachable states (116 states constructedinput type IntersectNwa). - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 255 locations, 1 error locations. TIMEOUT Result, 233.4s OverallTime, 6 OverallIterations, 4 TraceHistogramMax, 168.3s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 886 SDtfs, 4788 SDslu, 872 SDs, 0 SdLazy, 6997 SolverSat, 1171 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 62.2s Time, PredicateUnifierStatistics: 6 DeclaredPredicates, 952 GetRequests, 864 SyntacticMatches, 20 SemanticMatches, 68 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 387 ImplicationChecksByTransitivity, 35.9s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=4290occurred in iteration=4, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 19.7s AbstIntTime, 3 AbstIntIterations, 3 AbstIntStrong, 0.9957656952091638 AbsIntWeakeningRatio, 0.0982532751091703 AbsIntAvgWeakeningVarsNumRemoved, 390.07423580786025 AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.5s AutomataMinimizationTime, 5 MinimizatonAttempts, 7 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 4.0s InterpolantComputationTime, 1303 NumberOfCodeBlocks, 1303 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 1297 ConstructedInterpolants, 0 QuantifiedInterpolants, 4280149 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 6 InterpolantComputations, 3 PerfectInterpolantSequences, 514/986 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Completed graceful shutdown