java -Xmx8000000000 -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -s ../../../trunk/examples/settings/default/taipan/svcomp-Reach-64bit-Taipan_Default-EXP.epf -i ../../../trunk/examples/svcomp/eca-rers2012/Problem11_label11_true-unreach-call.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-df4b876 [2018-11-07 08:26:44,885 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-07 08:26:44,887 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-07 08:26:44,899 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-07 08:26:44,900 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-07 08:26:44,901 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-07 08:26:44,902 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-07 08:26:44,904 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-07 08:26:44,905 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-07 08:26:44,906 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-07 08:26:44,907 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-07 08:26:44,907 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-07 08:26:44,908 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-07 08:26:44,909 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-07 08:26:44,910 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-07 08:26:44,911 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-07 08:26:44,912 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-07 08:26:44,914 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-07 08:26:44,916 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-07 08:26:44,917 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-07 08:26:44,919 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-07 08:26:44,920 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-07 08:26:44,922 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-07 08:26:44,922 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-07 08:26:44,923 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-07 08:26:44,924 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-07 08:26:44,925 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-07 08:26:44,925 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-07 08:26:44,926 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-07 08:26:44,927 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-07 08:26:44,928 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-07 08:26:44,928 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-07 08:26:44,928 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-07 08:26:44,929 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-07 08:26:44,930 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-07 08:26:44,931 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-07 08:26:44,931 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/taipan/svcomp-Reach-64bit-Taipan_Default-EXP.epf [2018-11-07 08:26:44,947 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-07 08:26:44,948 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-07 08:26:44,949 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-07 08:26:44,949 INFO L133 SettingsManager]: * User list type=DISABLED [2018-11-07 08:26:44,949 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-11-07 08:26:44,949 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-11-07 08:26:44,949 INFO L133 SettingsManager]: * Explicit value domain=true [2018-11-07 08:26:44,950 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-11-07 08:26:44,950 INFO L133 SettingsManager]: * Octagon Domain=false [2018-11-07 08:26:44,950 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-11-07 08:26:44,950 INFO L133 SettingsManager]: * Log string format=TERM [2018-11-07 08:26:44,951 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-11-07 08:26:44,954 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-11-07 08:26:44,954 INFO L133 SettingsManager]: * Interval Domain=false [2018-11-07 08:26:44,955 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-07 08:26:44,955 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-07 08:26:44,955 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-07 08:26:44,955 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-07 08:26:44,955 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-07 08:26:44,955 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-07 08:26:44,956 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-07 08:26:44,956 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-07 08:26:44,956 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-07 08:26:44,956 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-07 08:26:44,956 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-07 08:26:44,957 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-07 08:26:44,957 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-07 08:26:44,957 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-07 08:26:44,957 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-07 08:26:44,957 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-07 08:26:44,958 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-11-07 08:26:44,958 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-07 08:26:44,958 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-11-07 08:26:44,958 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-11-07 08:26:44,958 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-11-07 08:26:44,959 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-11-07 08:26:45,018 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-07 08:26:45,030 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-07 08:26:45,035 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-07 08:26:45,036 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-07 08:26:45,037 INFO L276 PluginConnector]: CDTParser initialized [2018-11-07 08:26:45,038 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem11_label11_true-unreach-call.c [2018-11-07 08:26:45,100 INFO L218 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4bd594e98/da0149c662174aa586954bd9b8aa544e/FLAG954e7b760 [2018-11-07 08:26:45,811 INFO L298 CDTParser]: Found 1 translation units. [2018-11-07 08:26:45,812 INFO L158 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem11_label11_true-unreach-call.c [2018-11-07 08:26:45,834 INFO L346 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4bd594e98/da0149c662174aa586954bd9b8aa544e/FLAG954e7b760 [2018-11-07 08:26:45,850 INFO L354 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4bd594e98/da0149c662174aa586954bd9b8aa544e [2018-11-07 08:26:45,861 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-07 08:26:45,863 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-11-07 08:26:45,864 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-07 08:26:45,864 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-07 08:26:45,868 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-07 08:26:45,869 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 08:26:45" (1/1) ... [2018-11-07 08:26:45,873 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5a6bed07 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 08:26:45, skipping insertion in model container [2018-11-07 08:26:45,873 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 08:26:45" (1/1) ... [2018-11-07 08:26:45,884 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-07 08:26:45,953 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-11-07 08:26:46,542 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-11-07 08:26:46,555 INFO L189 MainTranslator]: Completed pre-run [2018-11-07 08:26:46,825 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-11-07 08:26:46,847 INFO L193 MainTranslator]: Completed translation [2018-11-07 08:26:46,848 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 08:26:46 WrapperNode [2018-11-07 08:26:46,848 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-07 08:26:46,849 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-07 08:26:46,849 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-07 08:26:46,849 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-07 08:26:46,861 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 08:26:46" (1/1) ... [2018-11-07 08:26:47,031 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 08:26:46" (1/1) ... [2018-11-07 08:26:47,048 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-07 08:26:47,048 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-07 08:26:47,049 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-07 08:26:47,049 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-07 08:26:47,061 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 08:26:46" (1/1) ... [2018-11-07 08:26:47,061 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 08:26:46" (1/1) ... [2018-11-07 08:26:47,074 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 08:26:46" (1/1) ... [2018-11-07 08:26:47,074 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 08:26:46" (1/1) ... [2018-11-07 08:26:47,130 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 08:26:46" (1/1) ... [2018-11-07 08:26:47,157 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 08:26:46" (1/1) ... [2018-11-07 08:26:47,177 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 08:26:46" (1/1) ... [2018-11-07 08:26:47,189 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-07 08:26:47,190 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-07 08:26:47,190 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-07 08:26:47,190 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-07 08:26:47,191 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 08:26:46" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-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 [2018-11-07 08:26:47,266 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2018-11-07 08:26:47,266 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-07 08:26:47,266 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-07 08:26:47,267 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2018-11-07 08:26:47,267 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2018-11-07 08:26:47,267 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-07 08:26:47,267 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-07 08:26:47,268 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-07 08:26:47,268 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-07 08:26:51,902 INFO L276 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-07 08:26:51,902 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 08:26:51 BoogieIcfgContainer [2018-11-07 08:26:51,902 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-07 08:26:51,903 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-07 08:26:51,904 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-07 08:26:51,907 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-07 08:26:51,908 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.11 08:26:45" (1/3) ... [2018-11-07 08:26:51,908 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7d47dfd0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 08:26:51, skipping insertion in model container [2018-11-07 08:26:51,909 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 08:26:46" (2/3) ... [2018-11-07 08:26:51,909 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7d47dfd0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 08:26:51, skipping insertion in model container [2018-11-07 08:26:51,909 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 08:26:51" (3/3) ... [2018-11-07 08:26:51,911 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem11_label11_true-unreach-call.c [2018-11-07 08:26:51,922 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-07 08:26:51,932 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-11-07 08:26:51,950 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-11-07 08:26:51,991 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-07 08:26:51,992 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-07 08:26:51,992 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-07 08:26:51,992 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-07 08:26:51,992 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-07 08:26:51,992 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-07 08:26:51,992 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-07 08:26:51,993 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-07 08:26:52,024 INFO L276 IsEmpty]: Start isEmpty. Operand 293 states. [2018-11-07 08:26:52,034 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2018-11-07 08:26:52,035 INFO L367 BasicCegarLoop]: Found error trace [2018-11-07 08:26:52,036 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-07 08:26:52,039 INFO L423 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-07 08:26:52,045 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 08:26:52,046 INFO L82 PathProgramCache]: Analyzing trace with hash 586215740, now seen corresponding path program 1 times [2018-11-07 08:26:52,048 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-07 08:26:52,104 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 08:26:52,104 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-07 08:26:52,105 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 08:26:52,105 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-07 08:26:52,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-07 08:26:52,657 WARN L179 SmtUtils]: Spent 169.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 4 [2018-11-07 08:26:52,759 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-07 08:26:52,762 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-07 08:26:52,762 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-11-07 08:26:52,762 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-07 08:26:52,769 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-11-07 08:26:52,785 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-07 08:26:52,786 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-07 08:26:52,789 INFO L87 Difference]: Start difference. First operand 293 states. Second operand 3 states. [2018-11-07 08:26:54,949 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-07 08:26:54,949 INFO L93 Difference]: Finished difference Result 782 states and 1372 transitions. [2018-11-07 08:26:54,951 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-07 08:26:54,953 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 68 [2018-11-07 08:26:54,954 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-07 08:26:54,973 INFO L225 Difference]: With dead ends: 782 [2018-11-07 08:26:54,973 INFO L226 Difference]: Without dead ends: 487 [2018-11-07 08:26:54,983 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 2 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-07 08:26:55,006 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 487 states. [2018-11-07 08:26:55,067 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 487 to 482. [2018-11-07 08:26:55,069 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 482 states. [2018-11-07 08:26:55,073 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 482 states to 482 states and 843 transitions. [2018-11-07 08:26:55,076 INFO L78 Accepts]: Start accepts. Automaton has 482 states and 843 transitions. Word has length 68 [2018-11-07 08:26:55,076 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-07 08:26:55,077 INFO L480 AbstractCegarLoop]: Abstraction has 482 states and 843 transitions. [2018-11-07 08:26:55,077 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-11-07 08:26:55,077 INFO L276 IsEmpty]: Start isEmpty. Operand 482 states and 843 transitions. [2018-11-07 08:26:55,096 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2018-11-07 08:26:55,096 INFO L367 BasicCegarLoop]: Found error trace [2018-11-07 08:26:55,097 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, 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] [2018-11-07 08:26:55,097 INFO L423 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-07 08:26:55,097 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 08:26:55,098 INFO L82 PathProgramCache]: Analyzing trace with hash 1561490343, now seen corresponding path program 1 times [2018-11-07 08:26:55,098 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-07 08:26:55,099 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 08:26:55,099 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-07 08:26:55,099 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 08:26:55,100 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-07 08:26:55,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-07 08:26:55,887 WARN L179 SmtUtils]: Spent 179.00 ms on a formula simplification that was a NOOP. DAG size: 15 [2018-11-07 08:26:56,228 INFO L134 CoverageAnalysis]: Checked inductivity of 61 backedges. 61 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-07 08:26:56,229 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-07 08:26:56,229 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2018-11-07 08:26:56,229 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-07 08:26:56,231 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-11-07 08:26:56,232 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-11-07 08:26:56,232 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2018-11-07 08:26:56,232 INFO L87 Difference]: Start difference. First operand 482 states and 843 transitions. Second operand 7 states. [2018-11-07 08:27:02,337 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-07 08:27:02,338 INFO L93 Difference]: Finished difference Result 1760 states and 3239 transitions. [2018-11-07 08:27:02,338 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2018-11-07 08:27:02,339 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 143 [2018-11-07 08:27:02,339 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-07 08:27:02,355 INFO L225 Difference]: With dead ends: 1760 [2018-11-07 08:27:02,356 INFO L226 Difference]: Without dead ends: 1284 [2018-11-07 08:27:02,363 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=48, Invalid=84, Unknown=0, NotChecked=0, Total=132 [2018-11-07 08:27:02,365 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1284 states. [2018-11-07 08:27:02,437 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1284 to 1037. [2018-11-07 08:27:02,437 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1037 states. [2018-11-07 08:27:02,444 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1037 states to 1037 states and 1685 transitions. [2018-11-07 08:27:02,444 INFO L78 Accepts]: Start accepts. Automaton has 1037 states and 1685 transitions. Word has length 143 [2018-11-07 08:27:02,445 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-07 08:27:02,445 INFO L480 AbstractCegarLoop]: Abstraction has 1037 states and 1685 transitions. [2018-11-07 08:27:02,445 INFO L481 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-11-07 08:27:02,445 INFO L276 IsEmpty]: Start isEmpty. Operand 1037 states and 1685 transitions. [2018-11-07 08:27:02,451 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 217 [2018-11-07 08:27:02,451 INFO L367 BasicCegarLoop]: Found error trace [2018-11-07 08:27:02,451 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-07 08:27:02,452 INFO L423 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-07 08:27:02,452 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 08:27:02,452 INFO L82 PathProgramCache]: Analyzing trace with hash 1636025592, now seen corresponding path program 1 times [2018-11-07 08:27:02,452 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-07 08:27:02,453 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 08:27:02,453 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-07 08:27:02,454 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 08:27:02,454 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-07 08:27:02,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-07 08:27:02,759 WARN L179 SmtUtils]: Spent 149.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 4 [2018-11-07 08:27:02,862 INFO L134 CoverageAnalysis]: Checked inductivity of 195 backedges. 122 proven. 68 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2018-11-07 08:27:02,862 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-07 08:27:02,863 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-07 08:27:02,863 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 217 with the following transitions: [2018-11-07 08:27:02,866 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], [337], [345], [353], [361], [369], [377], [385], [393], [401], [409], [417], [425], [433], [441], [445], [447], [450], [458], [466], [474], [482], [490], [495], [499], [503], [506], [507], [511], [514], [1084], [1088], [1092], [1098], [1102], [1104], [1109], [1110], [1111], [1113], [1114] [2018-11-07 08:27:02,912 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-11-07 08:27:02,913 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-07 08:27:03,629 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-11-07 08:27:03,633 INFO L272 AbstractInterpreter]: Visited 80 different actions 80 times. Never merged. Never widened. Never found a fixpoint. Largest state had 28 variables. [2018-11-07 08:27:03,672 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 08:27:03,673 INFO L398 sIntCurrentIteration]: Generating AbsInt predicates [2018-11-07 08:27:04,551 INFO L227 lantSequenceWeakener]: Weakened 207 states. On average, predicates are now at 73.9% of their original sizes. [2018-11-07 08:27:04,551 INFO L413 sIntCurrentIteration]: Unifying AI predicates [2018-11-07 08:27:04,820 INFO L415 sIntCurrentIteration]: We unified 215 AI predicates to 215 [2018-11-07 08:27:04,821 INFO L424 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-11-07 08:27:04,822 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-11-07 08:27:04,822 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [6] total 10 [2018-11-07 08:27:04,822 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-07 08:27:04,824 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-11-07 08:27:04,824 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-11-07 08:27:04,824 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-11-07 08:27:04,824 INFO L87 Difference]: Start difference. First operand 1037 states and 1685 transitions. Second operand 6 states. [2018-11-07 08:27:57,210 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-07 08:27:57,210 INFO L93 Difference]: Finished difference Result 2260 states and 3574 transitions. [2018-11-07 08:27:57,210 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-11-07 08:27:57,211 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 216 [2018-11-07 08:27:57,211 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-07 08:27:57,219 INFO L225 Difference]: With dead ends: 2260 [2018-11-07 08:27:57,219 INFO L226 Difference]: Without dead ends: 1229 [2018-11-07 08:27:57,223 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 216 GetRequests, 211 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2018-11-07 08:27:57,224 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1229 states. [2018-11-07 08:27:57,253 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1229 to 1227. [2018-11-07 08:27:57,254 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1227 states. [2018-11-07 08:27:57,260 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1227 states to 1227 states and 1883 transitions. [2018-11-07 08:27:57,260 INFO L78 Accepts]: Start accepts. Automaton has 1227 states and 1883 transitions. Word has length 216 [2018-11-07 08:27:57,261 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-07 08:27:57,261 INFO L480 AbstractCegarLoop]: Abstraction has 1227 states and 1883 transitions. [2018-11-07 08:27:57,261 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-11-07 08:27:57,261 INFO L276 IsEmpty]: Start isEmpty. Operand 1227 states and 1883 transitions. [2018-11-07 08:27:57,266 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 261 [2018-11-07 08:27:57,266 INFO L367 BasicCegarLoop]: Found error trace [2018-11-07 08:27:57,267 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-07 08:27:57,267 INFO L423 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-07 08:27:57,268 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 08:27:57,268 INFO L82 PathProgramCache]: Analyzing trace with hash 1687745886, now seen corresponding path program 1 times [2018-11-07 08:27:57,268 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-07 08:27:57,269 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 08:27:57,269 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-07 08:27:57,269 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 08:27:57,270 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-07 08:27:57,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-07 08:27:57,871 INFO L134 CoverageAnalysis]: Checked inductivity of 197 backedges. 0 proven. 125 refuted. 0 times theorem prover too weak. 72 trivial. 0 not checked. [2018-11-07 08:27:57,871 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-07 08:27:57,872 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-07 08:27:57,872 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 261 with the following transitions: [2018-11-07 08:27:57,873 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], [337], [345], [353], [361], [369], [377], [385], [393], [401], [409], [417], [425], [433], [441], [445], [447], [450], [458], [466], [474], [482], [490], [495], [499], [503], [507], [511], [514], [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], [654], [658], [662], [666], [677], [688], [692], [696], [707], [710], [1084], [1088], [1092], [1098], [1102], [1104], [1109], [1110], [1111], [1113], [1114] [2018-11-07 08:27:57,879 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-11-07 08:27:57,879 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-07 08:27:58,515 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-11-07 08:27:58,515 INFO L272 AbstractInterpreter]: Visited 126 different actions 375 times. Merged at 7 different actions 21 times. Never widened. Found 3 fixpoints after 2 different actions. Largest state had 28 variables. [2018-11-07 08:27:58,555 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 08:27:58,557 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2018-11-07 08:27:58,557 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-07 08:27:58,557 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-11-07 08:27:58,575 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-07 08:27:58,575 INFO L288 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-11-07 08:27:58,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-07 08:27:58,701 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-07 08:28:05,718 WARN L179 SmtUtils]: Spent 4.70 s on a formula simplification. DAG size of input: 118 DAG size of output: 31 [2018-11-07 08:28:05,912 INFO L134 CoverageAnalysis]: Checked inductivity of 197 backedges. 0 proven. 125 refuted. 0 times theorem prover too weak. 72 trivial. 0 not checked. [2018-11-07 08:28:05,912 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-11-07 08:28:06,125 INFO L134 CoverageAnalysis]: Checked inductivity of 197 backedges. 125 proven. 0 refuted. 0 times theorem prover too weak. 72 trivial. 0 not checked. [2018-11-07 08:28:06,147 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 2 imperfect interpolant sequences. [2018-11-07 08:28:06,148 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [7, 6] total 9 [2018-11-07 08:28:06,148 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-07 08:28:06,149 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-11-07 08:28:06,149 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-07 08:28:06,149 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=47, Unknown=1, NotChecked=0, Total=72 [2018-11-07 08:28:06,149 INFO L87 Difference]: Start difference. First operand 1227 states and 1883 transitions. Second operand 3 states. [2018-11-07 08:28:09,694 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-07 08:28:09,694 INFO L93 Difference]: Finished difference Result 2966 states and 4885 transitions. [2018-11-07 08:28:09,695 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-07 08:28:09,695 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 260 [2018-11-07 08:28:09,696 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-07 08:28:09,707 INFO L225 Difference]: With dead ends: 2966 [2018-11-07 08:28:09,708 INFO L226 Difference]: Without dead ends: 1935 [2018-11-07 08:28:09,713 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 530 GetRequests, 519 SyntacticMatches, 4 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 7.3s TimeCoverageRelationStatistics Valid=24, Invalid=47, Unknown=1, NotChecked=0, Total=72 [2018-11-07 08:28:09,715 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1935 states. [2018-11-07 08:28:09,760 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1935 to 1935. [2018-11-07 08:28:09,760 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1935 states. [2018-11-07 08:28:09,769 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1935 states to 1935 states and 2922 transitions. [2018-11-07 08:28:09,770 INFO L78 Accepts]: Start accepts. Automaton has 1935 states and 2922 transitions. Word has length 260 [2018-11-07 08:28:09,770 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-07 08:28:09,771 INFO L480 AbstractCegarLoop]: Abstraction has 1935 states and 2922 transitions. [2018-11-07 08:28:09,771 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-11-07 08:28:09,771 INFO L276 IsEmpty]: Start isEmpty. Operand 1935 states and 2922 transitions. [2018-11-07 08:28:09,780 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 287 [2018-11-07 08:28:09,780 INFO L367 BasicCegarLoop]: Found error trace [2018-11-07 08:28:09,780 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-07 08:28:09,781 INFO L423 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-07 08:28:09,781 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 08:28:09,781 INFO L82 PathProgramCache]: Analyzing trace with hash -307629149, now seen corresponding path program 1 times [2018-11-07 08:28:09,781 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-07 08:28:09,782 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 08:28:09,782 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-07 08:28:09,782 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 08:28:09,783 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-07 08:28:09,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-07 08:28:10,032 INFO L134 CoverageAnalysis]: Checked inductivity of 208 backedges. 125 proven. 0 refuted. 0 times theorem prover too weak. 83 trivial. 0 not checked. [2018-11-07 08:28:10,032 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-07 08:28:10,032 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-11-07 08:28:10,032 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-07 08:28:10,033 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-11-07 08:28:10,033 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-07 08:28:10,034 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-07 08:28:10,034 INFO L87 Difference]: Start difference. First operand 1935 states and 2922 transitions. Second operand 3 states. [2018-11-07 08:28:12,247 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-07 08:28:12,247 INFO L93 Difference]: Finished difference Result 4248 states and 6732 transitions. [2018-11-07 08:28:12,253 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-07 08:28:12,253 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 286 [2018-11-07 08:28:12,254 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-07 08:28:12,268 INFO L225 Difference]: With dead ends: 4248 [2018-11-07 08:28:12,268 INFO L226 Difference]: Without dead ends: 2509 [2018-11-07 08:28:12,278 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-07 08:28:12,280 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2509 states. [2018-11-07 08:28:12,328 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2509 to 2507. [2018-11-07 08:28:12,329 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2507 states. [2018-11-07 08:28:12,338 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2507 states to 2507 states and 3708 transitions. [2018-11-07 08:28:12,339 INFO L78 Accepts]: Start accepts. Automaton has 2507 states and 3708 transitions. Word has length 286 [2018-11-07 08:28:12,339 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-07 08:28:12,339 INFO L480 AbstractCegarLoop]: Abstraction has 2507 states and 3708 transitions. [2018-11-07 08:28:12,340 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-11-07 08:28:12,340 INFO L276 IsEmpty]: Start isEmpty. Operand 2507 states and 3708 transitions. [2018-11-07 08:28:12,348 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 292 [2018-11-07 08:28:12,348 INFO L367 BasicCegarLoop]: Found error trace [2018-11-07 08:28:12,348 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-07 08:28:12,349 INFO L423 AbstractCegarLoop]: === Iteration 6 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-07 08:28:12,349 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 08:28:12,349 INFO L82 PathProgramCache]: Analyzing trace with hash 748491532, now seen corresponding path program 1 times [2018-11-07 08:28:12,349 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-07 08:28:12,350 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 08:28:12,350 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-07 08:28:12,350 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 08:28:12,351 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-07 08:28:12,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-07 08:28:12,636 INFO L134 CoverageAnalysis]: Checked inductivity of 213 backedges. 125 proven. 0 refuted. 0 times theorem prover too weak. 88 trivial. 0 not checked. [2018-11-07 08:28:12,637 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-07 08:28:12,637 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-11-07 08:28:12,637 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-07 08:28:12,638 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-11-07 08:28:12,638 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-07 08:28:12,638 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-07 08:28:12,638 INFO L87 Difference]: Start difference. First operand 2507 states and 3708 transitions. Second operand 3 states. [2018-11-07 08:28:14,140 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-07 08:28:14,140 INFO L93 Difference]: Finished difference Result 6944 states and 10675 transitions. [2018-11-07 08:28:14,141 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-07 08:28:14,141 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 291 [2018-11-07 08:28:14,141 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-07 08:28:14,166 INFO L225 Difference]: With dead ends: 6944 [2018-11-07 08:28:14,167 INFO L226 Difference]: Without dead ends: 4633 [2018-11-07 08:28:14,181 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-07 08:28:14,185 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4633 states. [2018-11-07 08:28:14,284 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4633 to 4633. [2018-11-07 08:28:14,285 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4633 states. [2018-11-07 08:28:14,298 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4633 states to 4633 states and 6739 transitions. [2018-11-07 08:28:14,299 INFO L78 Accepts]: Start accepts. Automaton has 4633 states and 6739 transitions. Word has length 291 [2018-11-07 08:28:14,299 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-07 08:28:14,300 INFO L480 AbstractCegarLoop]: Abstraction has 4633 states and 6739 transitions. [2018-11-07 08:28:14,300 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-11-07 08:28:14,300 INFO L276 IsEmpty]: Start isEmpty. Operand 4633 states and 6739 transitions. [2018-11-07 08:28:14,314 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 301 [2018-11-07 08:28:14,314 INFO L367 BasicCegarLoop]: Found error trace [2018-11-07 08:28:14,314 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-07 08:28:14,315 INFO L423 AbstractCegarLoop]: === Iteration 7 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-07 08:28:14,315 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 08:28:14,315 INFO L82 PathProgramCache]: Analyzing trace with hash 2041497929, now seen corresponding path program 1 times [2018-11-07 08:28:14,315 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-07 08:28:14,316 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 08:28:14,316 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-07 08:28:14,316 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 08:28:14,316 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-07 08:28:14,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-07 08:28:14,601 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 233 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-07 08:28:14,601 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-07 08:28:14,601 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-07 08:28:14,601 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 301 with the following transitions: [2018-11-07 08:28:14,602 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], [337], [345], [353], [361], [369], [377], [385], [393], [401], [409], [417], [425], [433], [441], [445], [447], [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], [654], [658], [662], [666], [677], [680], [685], [687], [688], [692], [696], [707], [710], [1084], [1088], [1092], [1098], [1102], [1104], [1109], [1110], [1111], [1113], [1114] [2018-11-07 08:28:14,608 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-11-07 08:28:14,608 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-07 08:28:15,040 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-11-07 08:28:15,040 INFO L272 AbstractInterpreter]: Visited 125 different actions 244 times. Merged at 5 different actions 5 times. Never widened. Found 1 fixpoints after 1 different actions. Largest state had 28 variables. [2018-11-07 08:28:15,048 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 08:28:15,048 INFO L398 sIntCurrentIteration]: Generating AbsInt predicates [2018-11-07 08:28:15,407 INFO L227 lantSequenceWeakener]: Weakened 295 states. On average, predicates are now at 75.61% of their original sizes. [2018-11-07 08:28:15,407 INFO L413 sIntCurrentIteration]: Unifying AI predicates [2018-11-07 08:28:15,646 INFO L415 sIntCurrentIteration]: We unified 299 AI predicates to 299 [2018-11-07 08:28:15,646 INFO L424 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-11-07 08:28:15,646 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-11-07 08:28:15,647 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [10] imperfect sequences [6] total 14 [2018-11-07 08:28:15,647 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-07 08:28:15,647 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2018-11-07 08:28:15,648 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2018-11-07 08:28:15,648 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2018-11-07 08:28:15,648 INFO L87 Difference]: Start difference. First operand 4633 states and 6739 transitions. Second operand 10 states. [2018-11-07 08:29:40,048 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-07 08:29:40,049 INFO L93 Difference]: Finished difference Result 9840 states and 14506 transitions. [2018-11-07 08:29:40,049 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2018-11-07 08:29:40,049 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 300 [2018-11-07 08:29:40,050 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-07 08:29:40,072 INFO L225 Difference]: With dead ends: 9840 [2018-11-07 08:29:40,072 INFO L226 Difference]: Without dead ends: 5403 [2018-11-07 08:29:40,089 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 308 GetRequests, 291 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 46 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=92, Invalid=250, Unknown=0, NotChecked=0, Total=342 [2018-11-07 08:29:40,093 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5403 states. [2018-11-07 08:29:40,198 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5403 to 5398. [2018-11-07 08:29:40,198 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5398 states. [2018-11-07 08:29:40,213 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5398 states to 5398 states and 7666 transitions. [2018-11-07 08:29:40,213 INFO L78 Accepts]: Start accepts. Automaton has 5398 states and 7666 transitions. Word has length 300 [2018-11-07 08:29:40,214 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-07 08:29:40,214 INFO L480 AbstractCegarLoop]: Abstraction has 5398 states and 7666 transitions. [2018-11-07 08:29:40,214 INFO L481 AbstractCegarLoop]: Interpolant automaton has 10 states. [2018-11-07 08:29:40,214 INFO L276 IsEmpty]: Start isEmpty. Operand 5398 states and 7666 transitions. [2018-11-07 08:29:40,231 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 308 [2018-11-07 08:29:40,231 INFO L367 BasicCegarLoop]: Found error trace [2018-11-07 08:29:40,231 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-07 08:29:40,232 INFO L423 AbstractCegarLoop]: === Iteration 8 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-07 08:29:40,232 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 08:29:40,232 INFO L82 PathProgramCache]: Analyzing trace with hash 1761643877, now seen corresponding path program 1 times [2018-11-07 08:29:40,232 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-07 08:29:40,233 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 08:29:40,233 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-07 08:29:40,233 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 08:29:40,233 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-07 08:29:40,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-07 08:29:40,763 INFO L134 CoverageAnalysis]: Checked inductivity of 229 backedges. 127 proven. 2 refuted. 0 times theorem prover too weak. 100 trivial. 0 not checked. [2018-11-07 08:29:40,763 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-07 08:29:40,763 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-07 08:29:40,763 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 308 with the following transitions: [2018-11-07 08:29:40,764 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], [337], [345], [353], [361], [369], [377], [385], [393], [401], [409], [417], [425], [433], [441], [445], [447], [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], [649], [650], [654], [658], [662], [666], [677], [688], [692], [696], [707], [711], [715], [719], [723], [727], [731], [735], [739], [743], [747], [751], [762], [766], [769], [772], [776], [1084], [1088], [1092], [1098], [1102], [1104], [1109], [1110], [1111], [1113], [1114] [2018-11-07 08:29:40,821 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-11-07 08:29:40,822 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-07 08:29:41,076 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-11-07 08:29:41,076 INFO L272 AbstractInterpreter]: Visited 141 different actions 417 times. Merged at 7 different actions 18 times. Never widened. Found 3 fixpoints after 3 different actions. Largest state had 28 variables. [2018-11-07 08:29:41,081 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 08:29:41,081 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2018-11-07 08:29:41,081 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-07 08:29:41,081 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-11-07 08:29:41,091 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-07 08:29:41,091 INFO L288 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-11-07 08:29:41,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-07 08:29:41,194 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-07 08:29:41,342 INFO L134 CoverageAnalysis]: Checked inductivity of 229 backedges. 227 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-07 08:29:41,343 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-11-07 08:29:41,805 INFO L134 CoverageAnalysis]: Checked inductivity of 229 backedges. 227 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-07 08:29:41,826 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2018-11-07 08:29:41,826 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 5, 5] total 11 [2018-11-07 08:29:41,827 INFO L251 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-11-07 08:29:41,827 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2018-11-07 08:29:41,828 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2018-11-07 08:29:41,828 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=86, Unknown=0, NotChecked=0, Total=110 [2018-11-07 08:29:41,828 INFO L87 Difference]: Start difference. First operand 5398 states and 7666 transitions. Second operand 10 states. [2018-11-07 08:29:56,337 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-07 08:29:56,337 INFO L93 Difference]: Finished difference Result 21928 states and 35022 transitions. [2018-11-07 08:29:56,338 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 74 states. [2018-11-07 08:29:56,339 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 307 [2018-11-07 08:29:56,339 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-07 08:29:56,441 INFO L225 Difference]: With dead ends: 21928 [2018-11-07 08:29:56,441 INFO L226 Difference]: Without dead ends: 16725 [2018-11-07 08:29:56,491 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 715 GetRequests, 637 SyntacticMatches, 2 SemanticMatches, 76 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2264 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=983, Invalid=5023, Unknown=0, NotChecked=0, Total=6006 [2018-11-07 08:29:56,506 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16725 states. [2018-11-07 08:29:56,890 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16725 to 15895. [2018-11-07 08:29:56,890 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15895 states. [2018-11-07 08:29:56,945 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15895 states to 15895 states and 23439 transitions. [2018-11-07 08:29:56,946 INFO L78 Accepts]: Start accepts. Automaton has 15895 states and 23439 transitions. Word has length 307 [2018-11-07 08:29:56,946 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-07 08:29:56,947 INFO L480 AbstractCegarLoop]: Abstraction has 15895 states and 23439 transitions. [2018-11-07 08:29:56,947 INFO L481 AbstractCegarLoop]: Interpolant automaton has 10 states. [2018-11-07 08:29:56,947 INFO L276 IsEmpty]: Start isEmpty. Operand 15895 states and 23439 transitions. [2018-11-07 08:29:57,014 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 375 [2018-11-07 08:29:57,014 INFO L367 BasicCegarLoop]: Found error trace [2018-11-07 08:29:57,015 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, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 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] [2018-11-07 08:29:57,015 INFO L423 AbstractCegarLoop]: === Iteration 9 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-07 08:29:57,015 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 08:29:57,015 INFO L82 PathProgramCache]: Analyzing trace with hash 1170300453, now seen corresponding path program 1 times [2018-11-07 08:29:57,016 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-07 08:29:57,016 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 08:29:57,016 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-07 08:29:57,017 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 08:29:57,017 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-07 08:29:57,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-07 08:29:57,886 INFO L134 CoverageAnalysis]: Checked inductivity of 444 backedges. 371 proven. 2 refuted. 0 times theorem prover too weak. 71 trivial. 0 not checked. [2018-11-07 08:29:57,887 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-07 08:29:57,887 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-07 08:29:57,887 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 375 with the following transitions: [2018-11-07 08:29:57,888 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], [337], [345], [353], [361], [369], [377], [385], [393], [401], [409], [417], [425], [433], [441], [445], [447], [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], [654], [658], [662], [666], [677], [680], [685], [687], [688], [692], [696], [707], [710], [1084], [1088], [1092], [1098], [1102], [1104], [1109], [1110], [1111], [1113], [1114] [2018-11-07 08:29:57,891 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-11-07 08:29:57,891 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-07 08:29:58,444 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-11-07 08:29:58,444 INFO L272 AbstractInterpreter]: Visited 127 different actions 378 times. Merged at 7 different actions 21 times. Never widened. Found 3 fixpoints after 2 different actions. Largest state had 28 variables. [2018-11-07 08:29:58,449 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 08:29:58,449 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2018-11-07 08:29:58,449 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-07 08:29:58,449 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-11-07 08:29:58,458 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-07 08:29:58,459 INFO L288 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-11-07 08:29:58,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-07 08:29:58,568 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-07 08:29:58,733 INFO L134 CoverageAnalysis]: Checked inductivity of 444 backedges. 371 proven. 2 refuted. 0 times theorem prover too weak. 71 trivial. 0 not checked. [2018-11-07 08:29:58,733 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-11-07 08:29:58,935 INFO L134 CoverageAnalysis]: Checked inductivity of 444 backedges. 371 proven. 2 refuted. 0 times theorem prover too weak. 71 trivial. 0 not checked. [2018-11-07 08:29:58,956 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2018-11-07 08:29:58,956 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 5, 5] total 7 [2018-11-07 08:29:58,956 INFO L251 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-11-07 08:29:58,957 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-11-07 08:29:58,957 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-11-07 08:29:58,957 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2018-11-07 08:29:58,957 INFO L87 Difference]: Start difference. First operand 15895 states and 23439 transitions. Second operand 6 states. [2018-11-07 08:30:00,577 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-07 08:30:00,577 INFO L93 Difference]: Finished difference Result 30149 states and 46897 transitions. [2018-11-07 08:30:00,578 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-11-07 08:30:00,578 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 374 [2018-11-07 08:30:00,579 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-07 08:30:00,669 INFO L225 Difference]: With dead ends: 30149 [2018-11-07 08:30:00,669 INFO L226 Difference]: Without dead ends: 15990 [2018-11-07 08:30:00,716 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 759 GetRequests, 749 SyntacticMatches, 2 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=35, Invalid=55, Unknown=0, NotChecked=0, Total=90 [2018-11-07 08:30:00,731 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15990 states. [2018-11-07 08:30:01,062 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15990 to 15870. [2018-11-07 08:30:01,063 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15870 states. [2018-11-07 08:30:01,118 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15870 states to 15870 states and 21295 transitions. [2018-11-07 08:30:01,118 INFO L78 Accepts]: Start accepts. Automaton has 15870 states and 21295 transitions. Word has length 374 [2018-11-07 08:30:01,119 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-07 08:30:01,119 INFO L480 AbstractCegarLoop]: Abstraction has 15870 states and 21295 transitions. [2018-11-07 08:30:01,119 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-11-07 08:30:01,119 INFO L276 IsEmpty]: Start isEmpty. Operand 15870 states and 21295 transitions. [2018-11-07 08:30:01,190 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 395 [2018-11-07 08:30:01,190 INFO L367 BasicCegarLoop]: Found error trace [2018-11-07 08:30:01,191 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, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 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] [2018-11-07 08:30:01,191 INFO L423 AbstractCegarLoop]: === Iteration 10 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-07 08:30:01,191 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 08:30:01,191 INFO L82 PathProgramCache]: Analyzing trace with hash 1034638058, now seen corresponding path program 1 times [2018-11-07 08:30:01,191 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-07 08:30:01,192 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 08:30:01,192 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-07 08:30:01,192 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 08:30:01,193 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-07 08:30:01,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-07 08:30:01,781 INFO L134 CoverageAnalysis]: Checked inductivity of 454 backedges. 265 proven. 78 refuted. 0 times theorem prover too weak. 111 trivial. 0 not checked. [2018-11-07 08:30:01,781 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-07 08:30:01,781 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-07 08:30:01,782 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 395 with the following transitions: [2018-11-07 08:30:01,782 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], [337], [345], [353], [361], [369], [377], [385], [393], [401], [409], [417], [425], [433], [441], [445], [447], [450], [458], [466], [474], [482], [490], [495], [499], [503], [507], [511], [515], [519], [523], [527], [530], [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], [654], [658], [662], [666], [677], [680], [685], [687], [688], [692], [696], [707], [711], [715], [719], [723], [727], [731], [735], [739], [743], [747], [751], [762], [766], [769], [772], [776], [1084], [1088], [1092], [1098], [1102], [1104], [1109], [1110], [1111], [1113], [1114] [2018-11-07 08:30:01,785 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-11-07 08:30:01,786 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-07 08:30:02,210 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-11-07 08:30:02,211 INFO L272 AbstractInterpreter]: Visited 144 different actions 567 times. Merged at 8 different actions 28 times. Never widened. Found 6 fixpoints after 2 different actions. Largest state had 28 variables. [2018-11-07 08:30:02,218 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 08:30:02,218 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2018-11-07 08:30:02,218 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-07 08:30:02,218 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-11-07 08:30:02,228 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-07 08:30:02,228 INFO L288 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-11-07 08:30:02,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-07 08:30:02,334 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-07 08:30:02,875 INFO L134 CoverageAnalysis]: Checked inductivity of 454 backedges. 390 proven. 2 refuted. 0 times theorem prover too weak. 62 trivial. 0 not checked. [2018-11-07 08:30:02,875 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-11-07 08:30:03,553 INFO L134 CoverageAnalysis]: Checked inductivity of 454 backedges. 265 proven. 78 refuted. 0 times theorem prover too weak. 111 trivial. 0 not checked. [2018-11-07 08:30:03,573 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2018-11-07 08:30:03,574 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 5, 5] total 11 [2018-11-07 08:30:03,574 INFO L251 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-11-07 08:30:03,574 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-11-07 08:30:03,575 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-11-07 08:30:03,575 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2018-11-07 08:30:03,575 INFO L87 Difference]: Start difference. First operand 15870 states and 21295 transitions. Second operand 9 states. [2018-11-07 08:30:07,695 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-07 08:30:07,696 INFO L93 Difference]: Finished difference Result 33467 states and 48408 transitions. [2018-11-07 08:30:07,696 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2018-11-07 08:30:07,696 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 394 [2018-11-07 08:30:07,697 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-07 08:30:07,771 INFO L225 Difference]: With dead ends: 33467 [2018-11-07 08:30:07,771 INFO L226 Difference]: Without dead ends: 19331 [2018-11-07 08:30:07,844 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 807 GetRequests, 790 SyntacticMatches, 1 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 39 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=98, Invalid=208, Unknown=0, NotChecked=0, Total=306 [2018-11-07 08:30:07,860 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19331 states. [2018-11-07 08:30:08,203 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19331 to 19082. [2018-11-07 08:30:08,204 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19082 states. [2018-11-07 08:30:08,259 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19082 states to 19082 states and 24545 transitions. [2018-11-07 08:30:08,260 INFO L78 Accepts]: Start accepts. Automaton has 19082 states and 24545 transitions. Word has length 394 [2018-11-07 08:30:08,260 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-07 08:30:08,260 INFO L480 AbstractCegarLoop]: Abstraction has 19082 states and 24545 transitions. [2018-11-07 08:30:08,261 INFO L481 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-11-07 08:30:08,261 INFO L276 IsEmpty]: Start isEmpty. Operand 19082 states and 24545 transitions. [2018-11-07 08:30:08,306 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 424 [2018-11-07 08:30:08,306 INFO L367 BasicCegarLoop]: Found error trace [2018-11-07 08:30:08,307 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, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 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] [2018-11-07 08:30:08,307 INFO L423 AbstractCegarLoop]: === Iteration 11 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-07 08:30:08,307 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 08:30:08,307 INFO L82 PathProgramCache]: Analyzing trace with hash -788927721, now seen corresponding path program 1 times [2018-11-07 08:30:08,308 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-07 08:30:08,308 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 08:30:08,308 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-07 08:30:08,309 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 08:30:08,309 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-07 08:30:08,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-07 08:30:08,870 INFO L134 CoverageAnalysis]: Checked inductivity of 512 backedges. 189 proven. 217 refuted. 0 times theorem prover too weak. 106 trivial. 0 not checked. [2018-11-07 08:30:08,870 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-07 08:30:08,871 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-07 08:30:08,871 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 424 with the following transitions: [2018-11-07 08:30:08,871 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], [337], [345], [353], [361], [369], [377], [385], [393], [401], [409], [417], [425], [433], [441], [445], [447], [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], [680], [685], [687], [688], [692], [696], [707], [711], [715], [719], [723], [727], [731], [735], [739], [743], [747], [751], [762], [766], [769], [772], [776], [1084], [1088], [1092], [1098], [1102], [1104], [1109], [1110], [1111], [1113], [1114] [2018-11-07 08:30:08,874 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-11-07 08:30:08,874 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-07 08:30:09,304 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-11-07 08:30:09,304 INFO L272 AbstractInterpreter]: Visited 144 different actions 573 times. Merged at 8 different actions 34 times. Widened at 1 different actions 1 times. Found 7 fixpoints after 2 different actions. Largest state had 28 variables. [2018-11-07 08:30:09,310 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 08:30:09,310 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2018-11-07 08:30:09,310 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-07 08:30:09,310 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-11-07 08:30:09,318 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-07 08:30:09,318 INFO L288 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-11-07 08:30:09,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-07 08:30:09,447 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-07 08:30:11,714 WARN L179 SmtUtils]: Spent 916.00 ms on a formula simplification. DAG size of input: 33 DAG size of output: 13 [2018-11-07 08:30:11,848 INFO L134 CoverageAnalysis]: Checked inductivity of 512 backedges. 343 proven. 107 refuted. 0 times theorem prover too weak. 62 trivial. 0 not checked. [2018-11-07 08:30:11,849 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-11-07 08:30:12,222 INFO L134 CoverageAnalysis]: Checked inductivity of 512 backedges. 294 proven. 107 refuted. 0 times theorem prover too weak. 111 trivial. 0 not checked. [2018-11-07 08:30:12,243 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2018-11-07 08:30:12,243 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 8, 5] total 12 [2018-11-07 08:30:12,243 INFO L251 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-11-07 08:30:12,244 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2018-11-07 08:30:12,244 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2018-11-07 08:30:12,244 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=96, Unknown=2, NotChecked=0, Total=132 [2018-11-07 08:30:12,245 INFO L87 Difference]: Start difference. First operand 19082 states and 24545 transitions. Second operand 10 states. [2018-11-07 08:30:12,702 WARN L179 SmtUtils]: Spent 436.00 ms on a formula simplification that was a NOOP. DAG size: 16 [2018-11-07 08:30:17,697 WARN L179 SmtUtils]: Spent 223.00 ms on a formula simplification that was a NOOP. DAG size: 17 Received shutdown request... [2018-11-07 08:30:44,792 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2018-11-07 08:30:44,793 WARN L549 AbstractCegarLoop]: Verification canceled [2018-11-07 08:30:44,798 WARN L205 ceAbstractionStarter]: Timeout [2018-11-07 08:30:44,799 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 07.11 08:30:44 BoogieIcfgContainer [2018-11-07 08:30:44,799 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-11-07 08:30:44,800 INFO L168 Benchmark]: Toolchain (without parser) took 238937.87 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: -2.1 GB). Peak memory consumption was 506.1 MB. Max. memory is 7.1 GB. [2018-11-07 08:30:44,801 INFO L168 Benchmark]: CDTParser took 0.20 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. [2018-11-07 08:30:44,801 INFO L168 Benchmark]: CACSL2BoogieTranslator took 984.41 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: 63.4 MB). Peak memory consumption was 63.4 MB. Max. memory is 7.1 GB. [2018-11-07 08:30:44,802 INFO L168 Benchmark]: Boogie Procedure Inliner took 199.20 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 742.4 MB). Free memory was 1.4 GB in the beginning and 2.2 GB in the end (delta: -850.5 MB). Peak memory consumption was 23.0 MB. Max. memory is 7.1 GB. [2018-11-07 08:30:44,803 INFO L168 Benchmark]: Boogie Preprocessor took 141.03 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. [2018-11-07 08:30:44,804 INFO L168 Benchmark]: RCFGBuilder took 4712.63 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: 173.0 MB). Peak memory consumption was 173.0 MB. Max. memory is 7.1 GB. [2018-11-07 08:30:44,804 INFO L168 Benchmark]: TraceAbstraction took 232895.45 ms. Allocated memory was 2.3 GB in the beginning and 4.2 GB in the end (delta: 1.9 GB). Free memory was 2.0 GB in the beginning and 3.5 GB in the end (delta: -1.5 GB). Peak memory consumption was 377.8 MB. Max. memory is 7.1 GB. [2018-11-07 08:30:44,809 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20 ms. Allocated memory is still 1.5 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 984.41 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: 63.4 MB). Peak memory consumption was 63.4 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 199.20 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 742.4 MB). Free memory was 1.4 GB in the beginning and 2.2 GB in the end (delta: -850.5 MB). Peak memory consumption was 23.0 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 141.03 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 4712.63 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: 173.0 MB). Peak memory consumption was 173.0 MB. Max. memory is 7.1 GB. * TraceAbstraction took 232895.45 ms. Allocated memory was 2.3 GB in the beginning and 4.2 GB in the end (delta: 1.9 GB). Free memory was 2.0 GB in the beginning and 3.5 GB in the end (delta: -1.5 GB). Peak memory consumption was 377.8 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResultAtElement [Line: 189]: Timeout (TraceAbstraction) Unable to prove that call of __VERIFIER_error() unreachable (line 189). Cancelled while BasicCegarLoop was constructing difference of abstraction (19082states) and FLOYD_HOARE automaton (currently 24 states, 10 states before enhancement),while ReachableStatesComputation was computing reachable states (8277 states constructedinput type IntersectNwa). - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 293 locations, 1 error locations. TIMEOUT Result, 232.8s OverallTime, 11 OverallIterations, 4 TraceHistogramMax, 205.7s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 2276 SDtfs, 12533 SDslu, 2565 SDs, 0 SdLazy, 21719 SolverSat, 4807 SolverUnsat, 12 SolverUnknown, 0 SolverNotchecked, 165.0s Time, PredicateUnifierStatistics: 4 DeclaredPredicates, 4249 GetRequests, 4064 SyntacticMatches, 16 SemanticMatches, 169 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2541 ImplicationChecksByTransitivity, 28.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=19082occurred in iteration=10, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 3.6s AbstIntTime, 7 AbstIntIterations, 2 AbstIntStrong, 0.9978987350832212 AbsIntWeakeningRatio, 0.11284046692607004 AbsIntAvgWeakeningVarsNumRemoved, 18.285992217898833 AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 1.8s AutomataMinimizationTime, 10 MinimizatonAttempts, 1460 StatesRemovedByMinimization, 8 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.2s SsaConstructionTime, 0.9s SatisfiabilityAnalysisTime, 17.0s InterpolantComputationTime, 4820 NumberOfCodeBlocks, 4820 NumberOfCodeBlocksAsserted, 16 NumberOfCheckSat, 6557 ConstructedInterpolants, 5 QuantifiedInterpolants, 5667886 SizeOfPredicates, 6 NumberOfNonLiveVariables, 2917 ConjunctsInSsa, 35 ConjunctsInUnsatCore, 21 InterpolantComputations, 5 PerfectInterpolantSequences, 5499/6420 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Completed graceful shutdown