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-INT-LIM.epf -i ../../../trunk/examples/svcomp/eca-rers2012/Problem16_label26_true-unreach-call.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-df4b876 [2018-11-07 20:52:41,878 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-07 20:52:41,880 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-07 20:52:41,893 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-07 20:52:41,894 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-07 20:52:41,895 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-07 20:52:41,896 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-07 20:52:41,898 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-07 20:52:41,900 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-07 20:52:41,901 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-07 20:52:41,902 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-07 20:52:41,904 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-07 20:52:41,905 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-07 20:52:41,908 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-07 20:52:41,909 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-07 20:52:41,912 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-07 20:52:41,913 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-07 20:52:41,917 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-07 20:52:41,919 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-07 20:52:41,923 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-07 20:52:41,924 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-07 20:52:41,925 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-07 20:52:41,933 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-07 20:52:41,934 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-07 20:52:41,934 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-07 20:52:41,935 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-07 20:52:41,936 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-07 20:52:41,938 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-07 20:52:41,939 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-07 20:52:41,941 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-07 20:52:41,942 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-07 20:52:41,943 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-07 20:52:41,943 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-07 20:52:41,944 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-07 20:52:41,946 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-07 20:52:41,947 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-07 20:52:41,948 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/taipan/svcomp-Reach-64bit-Taipan_Default-INT-LIM.epf [2018-11-07 20:52:41,976 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-07 20:52:41,976 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-07 20:52:41,977 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-07 20:52:41,977 INFO L133 SettingsManager]: * User list type=DISABLED [2018-11-07 20:52:41,978 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-11-07 20:52:41,979 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-11-07 20:52:41,979 INFO L133 SettingsManager]: * Maximum recursion depth of evaluation operations=6 [2018-11-07 20:52:41,979 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-11-07 20:52:41,979 INFO L133 SettingsManager]: * Octagon Domain=false [2018-11-07 20:52:41,980 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-11-07 20:52:41,980 INFO L133 SettingsManager]: * Log string format=TERM [2018-11-07 20:52:41,980 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-11-07 20:52:41,980 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-11-07 20:52:41,982 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-07 20:52:41,982 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-07 20:52:41,982 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-07 20:52:41,982 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-07 20:52:41,983 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-07 20:52:41,983 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-07 20:52:41,985 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-07 20:52:41,985 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-07 20:52:41,985 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-07 20:52:41,986 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-07 20:52:41,986 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-07 20:52:41,986 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-07 20:52:41,986 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-07 20:52:41,986 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-07 20:52:41,987 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-07 20:52:41,987 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-07 20:52:41,988 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-11-07 20:52:41,988 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-07 20:52:41,988 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-11-07 20:52:41,988 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-11-07 20:52:41,988 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-11-07 20:52:41,989 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-11-07 20:52:42,058 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-07 20:52:42,076 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-07 20:52:42,080 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-07 20:52:42,082 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-07 20:52:42,082 INFO L276 PluginConnector]: CDTParser initialized [2018-11-07 20:52:42,083 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem16_label26_true-unreach-call.c [2018-11-07 20:52:42,155 INFO L218 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c0f1fe090/f741481d69054826a93c4d6e5ad2ed54/FLAG4a52e3454 [2018-11-07 20:52:42,864 INFO L298 CDTParser]: Found 1 translation units. [2018-11-07 20:52:42,865 INFO L158 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem16_label26_true-unreach-call.c [2018-11-07 20:52:42,885 INFO L346 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c0f1fe090/f741481d69054826a93c4d6e5ad2ed54/FLAG4a52e3454 [2018-11-07 20:52:42,903 INFO L354 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c0f1fe090/f741481d69054826a93c4d6e5ad2ed54 [2018-11-07 20:52:42,913 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-07 20:52:42,915 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-11-07 20:52:42,916 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-07 20:52:42,916 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-07 20:52:42,920 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-07 20:52:42,921 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 08:52:42" (1/1) ... [2018-11-07 20:52:42,924 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7d100604 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 08:52:42, skipping insertion in model container [2018-11-07 20:52:42,925 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 08:52:42" (1/1) ... [2018-11-07 20:52:42,935 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-07 20:52:43,036 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-11-07 20:52:43,957 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-11-07 20:52:43,962 INFO L189 MainTranslator]: Completed pre-run [2018-11-07 20:52:44,198 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-11-07 20:52:44,218 INFO L193 MainTranslator]: Completed translation [2018-11-07 20:52:44,219 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 08:52:44 WrapperNode [2018-11-07 20:52:44,219 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-07 20:52:44,220 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-07 20:52:44,220 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-07 20:52:44,220 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-07 20:52:44,230 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 08:52:44" (1/1) ... [2018-11-07 20:52:44,415 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 08:52:44" (1/1) ... [2018-11-07 20:52:44,426 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-07 20:52:44,426 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-07 20:52:44,427 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-07 20:52:44,427 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-07 20:52:44,438 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 08:52:44" (1/1) ... [2018-11-07 20:52:44,438 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 08:52:44" (1/1) ... [2018-11-07 20:52:44,448 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 08:52:44" (1/1) ... [2018-11-07 20:52:44,450 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 08:52:44" (1/1) ... [2018-11-07 20:52:44,522 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 08:52:44" (1/1) ... [2018-11-07 20:52:44,562 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 08:52:44" (1/1) ... [2018-11-07 20:52:44,583 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 08:52:44" (1/1) ... [2018-11-07 20:52:44,595 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-07 20:52:44,596 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-07 20:52:44,596 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-07 20:52:44,596 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-07 20:52:44,597 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 08:52:44" (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 20:52:44,669 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2018-11-07 20:52:44,670 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-07 20:52:44,670 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-07 20:52:44,670 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output2 [2018-11-07 20:52:44,670 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output2 [2018-11-07 20:52:44,670 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2018-11-07 20:52:44,671 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2018-11-07 20:52:44,671 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-07 20:52:44,671 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-07 20:52:44,671 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-07 20:52:44,671 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-07 20:52:51,771 INFO L276 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-07 20:52:51,771 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 08:52:51 BoogieIcfgContainer [2018-11-07 20:52:51,772 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-07 20:52:51,773 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-07 20:52:51,773 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-07 20:52:51,776 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-07 20:52:51,777 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.11 08:52:42" (1/3) ... [2018-11-07 20:52:51,777 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@67529a90 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 08:52:51, skipping insertion in model container [2018-11-07 20:52:51,778 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 08:52:44" (2/3) ... [2018-11-07 20:52:51,778 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@67529a90 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 08:52:51, skipping insertion in model container [2018-11-07 20:52:51,778 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 08:52:51" (3/3) ... [2018-11-07 20:52:51,780 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem16_label26_true-unreach-call.c [2018-11-07 20:52:51,789 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-07 20:52:51,798 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-11-07 20:52:51,814 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-11-07 20:52:51,856 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-07 20:52:51,857 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-07 20:52:51,857 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-07 20:52:51,857 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-07 20:52:51,857 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-07 20:52:51,857 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-07 20:52:51,858 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-07 20:52:51,858 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-07 20:52:51,889 INFO L276 IsEmpty]: Start isEmpty. Operand 410 states. [2018-11-07 20:52:51,898 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2018-11-07 20:52:51,898 INFO L367 BasicCegarLoop]: Found error trace [2018-11-07 20:52:51,900 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] [2018-11-07 20:52:51,902 INFO L423 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-07 20:52:51,908 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 20:52:51,909 INFO L82 PathProgramCache]: Analyzing trace with hash 1191514292, now seen corresponding path program 1 times [2018-11-07 20:52:51,912 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-07 20:52:51,971 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 20:52:51,972 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-07 20:52:51,972 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 20:52:51,972 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-07 20:52:52,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-07 20:52:52,378 WARN L179 SmtUtils]: Spent 134.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 4 [2018-11-07 20:52:52,445 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 20:52:52,448 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-07 20:52:52,448 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-11-07 20:52:52,448 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-07 20:52:52,455 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-11-07 20:52:52,473 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-07 20:52:52,473 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-07 20:52:52,477 INFO L87 Difference]: Start difference. First operand 410 states. Second operand 3 states. [2018-11-07 20:52:56,140 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-07 20:52:56,140 INFO L93 Difference]: Finished difference Result 1156 states and 2144 transitions. [2018-11-07 20:52:56,146 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-07 20:52:56,147 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 42 [2018-11-07 20:52:56,148 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-07 20:52:56,174 INFO L225 Difference]: With dead ends: 1156 [2018-11-07 20:52:56,174 INFO L226 Difference]: Without dead ends: 744 [2018-11-07 20:52:56,185 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 20:52:56,210 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 744 states. [2018-11-07 20:52:56,332 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 744 to 744. [2018-11-07 20:52:56,334 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 744 states. [2018-11-07 20:52:56,341 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 744 states to 744 states and 1343 transitions. [2018-11-07 20:52:56,343 INFO L78 Accepts]: Start accepts. Automaton has 744 states and 1343 transitions. Word has length 42 [2018-11-07 20:52:56,344 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-07 20:52:56,344 INFO L480 AbstractCegarLoop]: Abstraction has 744 states and 1343 transitions. [2018-11-07 20:52:56,344 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-11-07 20:52:56,344 INFO L276 IsEmpty]: Start isEmpty. Operand 744 states and 1343 transitions. [2018-11-07 20:52:56,351 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2018-11-07 20:52:56,351 INFO L367 BasicCegarLoop]: Found error trace [2018-11-07 20:52:56,352 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 20:52:56,352 INFO L423 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-07 20:52:56,352 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 20:52:56,353 INFO L82 PathProgramCache]: Analyzing trace with hash 1985483383, now seen corresponding path program 1 times [2018-11-07 20:52:56,353 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-07 20:52:56,354 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 20:52:56,354 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-07 20:52:56,355 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 20:52:56,355 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-07 20:52:56,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-07 20:52:56,710 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 35 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-07 20:52:56,710 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-07 20:52:56,711 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-11-07 20:52:56,711 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-07 20:52:56,714 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-11-07 20:52:56,715 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-11-07 20:52:56,715 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-11-07 20:52:56,715 INFO L87 Difference]: Start difference. First operand 744 states and 1343 transitions. Second operand 6 states. [2018-11-07 20:53:03,911 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-07 20:53:03,912 INFO L93 Difference]: Finished difference Result 2846 states and 5292 transitions. [2018-11-07 20:53:03,912 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-11-07 20:53:03,912 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 115 [2018-11-07 20:53:03,913 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-07 20:53:03,928 INFO L225 Difference]: With dead ends: 2846 [2018-11-07 20:53:03,929 INFO L226 Difference]: Without dead ends: 2108 [2018-11-07 20:53:03,937 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2018-11-07 20:53:03,939 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2108 states. [2018-11-07 20:53:04,023 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2108 to 2090. [2018-11-07 20:53:04,023 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2090 states. [2018-11-07 20:53:04,033 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2090 states to 2090 states and 3323 transitions. [2018-11-07 20:53:04,034 INFO L78 Accepts]: Start accepts. Automaton has 2090 states and 3323 transitions. Word has length 115 [2018-11-07 20:53:04,034 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-07 20:53:04,034 INFO L480 AbstractCegarLoop]: Abstraction has 2090 states and 3323 transitions. [2018-11-07 20:53:04,035 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-11-07 20:53:04,036 INFO L276 IsEmpty]: Start isEmpty. Operand 2090 states and 3323 transitions. [2018-11-07 20:53:04,042 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 145 [2018-11-07 20:53:04,047 INFO L367 BasicCegarLoop]: Found error trace [2018-11-07 20:53:04,047 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 20:53:04,051 INFO L423 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-07 20:53:04,051 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 20:53:04,051 INFO L82 PathProgramCache]: Analyzing trace with hash 808284322, now seen corresponding path program 1 times [2018-11-07 20:53:04,051 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-07 20:53:04,052 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 20:53:04,052 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-07 20:53:04,053 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 20:53:04,053 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-07 20:53:04,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-07 20:53:04,365 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 35 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-07 20:53:04,365 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-07 20:53:04,366 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-11-07 20:53:04,367 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-07 20:53:04,368 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-11-07 20:53:04,368 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-11-07 20:53:04,368 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-11-07 20:53:04,371 INFO L87 Difference]: Start difference. First operand 2090 states and 3323 transitions. Second operand 6 states. [2018-11-07 20:53:09,733 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-07 20:53:09,734 INFO L93 Difference]: Finished difference Result 5549 states and 9209 transitions. [2018-11-07 20:53:09,734 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-11-07 20:53:09,734 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 144 [2018-11-07 20:53:09,735 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-07 20:53:09,760 INFO L225 Difference]: With dead ends: 5549 [2018-11-07 20:53:09,760 INFO L226 Difference]: Without dead ends: 3465 [2018-11-07 20:53:09,774 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2018-11-07 20:53:09,777 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3465 states. [2018-11-07 20:53:09,859 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3465 to 3433. [2018-11-07 20:53:09,859 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3433 states. [2018-11-07 20:53:09,872 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3433 states to 3433 states and 5124 transitions. [2018-11-07 20:53:09,872 INFO L78 Accepts]: Start accepts. Automaton has 3433 states and 5124 transitions. Word has length 144 [2018-11-07 20:53:09,873 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-07 20:53:09,873 INFO L480 AbstractCegarLoop]: Abstraction has 3433 states and 5124 transitions. [2018-11-07 20:53:09,873 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-11-07 20:53:09,873 INFO L276 IsEmpty]: Start isEmpty. Operand 3433 states and 5124 transitions. [2018-11-07 20:53:09,880 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 317 [2018-11-07 20:53:09,881 INFO L367 BasicCegarLoop]: Found error trace [2018-11-07 20:53:09,881 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 20:53:09,881 INFO L423 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-07 20:53:09,882 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 20:53:09,882 INFO L82 PathProgramCache]: Analyzing trace with hash -1228883702, now seen corresponding path program 1 times [2018-11-07 20:53:09,882 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-07 20:53:09,883 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 20:53:09,883 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-07 20:53:09,884 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 20:53:09,884 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-07 20:53:09,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-07 20:53:10,274 WARN L179 SmtUtils]: Spent 166.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 4 [2018-11-07 20:53:10,690 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 35 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-07 20:53:10,690 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-07 20:53:10,691 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-11-07 20:53:10,691 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-07 20:53:10,692 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-11-07 20:53:10,692 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-11-07 20:53:10,692 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-11-07 20:53:10,693 INFO L87 Difference]: Start difference. First operand 3433 states and 5124 transitions. Second operand 6 states. [2018-11-07 20:53:13,768 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-07 20:53:13,769 INFO L93 Difference]: Finished difference Result 8945 states and 13969 transitions. [2018-11-07 20:53:13,777 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-11-07 20:53:13,778 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 316 [2018-11-07 20:53:13,779 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-07 20:53:13,812 INFO L225 Difference]: With dead ends: 8945 [2018-11-07 20:53:13,812 INFO L226 Difference]: Without dead ends: 5518 [2018-11-07 20:53:13,823 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2018-11-07 20:53:13,829 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5518 states. [2018-11-07 20:53:13,963 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5518 to 5504. [2018-11-07 20:53:13,964 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5504 states. [2018-11-07 20:53:13,978 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5504 states to 5504 states and 7967 transitions. [2018-11-07 20:53:13,978 INFO L78 Accepts]: Start accepts. Automaton has 5504 states and 7967 transitions. Word has length 316 [2018-11-07 20:53:13,979 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-07 20:53:13,979 INFO L480 AbstractCegarLoop]: Abstraction has 5504 states and 7967 transitions. [2018-11-07 20:53:13,979 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-11-07 20:53:13,980 INFO L276 IsEmpty]: Start isEmpty. Operand 5504 states and 7967 transitions. [2018-11-07 20:53:13,994 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 433 [2018-11-07 20:53:13,995 INFO L367 BasicCegarLoop]: Found error trace [2018-11-07 20:53:13,995 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-07 20:53:13,996 INFO L423 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-07 20:53:13,996 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 20:53:13,996 INFO L82 PathProgramCache]: Analyzing trace with hash -1236053316, now seen corresponding path program 1 times [2018-11-07 20:53:13,996 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-07 20:53:13,997 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 20:53:13,997 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-07 20:53:13,998 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 20:53:13,998 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-07 20:53:14,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-07 20:53:14,351 WARN L179 SmtUtils]: Spent 161.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 4 [2018-11-07 20:53:14,846 INFO L134 CoverageAnalysis]: Checked inductivity of 186 backedges. 70 proven. 111 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2018-11-07 20:53:14,846 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-07 20:53:14,846 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-07 20:53:14,848 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 433 with the following transitions: [2018-11-07 20:53:14,851 INFO L202 CegarAbsIntRunner]: [0], [1], [180], [187], [195], [203], [211], [219], [227], [235], [243], [251], [259], [267], [275], [283], [291], [299], [307], [315], [323], [331], [339], [347], [355], [363], [371], [379], [387], [395], [403], [411], [415], [417], [420], [428], [436], [444], [452], [460], [468], [476], [484], [492], [500], [508], [516], [524], [532], [540], [548], [556], [564], [572], [580], [588], [596], [604], [612], [620], [628], [636], [644], [652], [660], [668], [673], [677], [681], [685], [689], [693], [697], [701], [705], [709], [713], [717], [721], [725], [729], [733], [737], [741], [745], [749], [753], [757], [761], [765], [769], [773], [777], [781], [785], [789], [793], [797], [801], [805], [809], [813], [817], [821], [825], [829], [833], [837], [841], [845], [849], [853], [856], [857], [861], [865], [869], [873], [877], [881], [885], [889], [893], [897], [901], [905], [909], [913], [917], [921], [925], [929], [933], [937], [941], [945], [949], [953], [957], [961], [965], [969], [973], [977], [981], [985], [989], [993], [997], [1001], [1005], [1009], [1013], [1017], [1021], [1025], [1029], [1033], [1037], [1041], [1045], [1049], [1053], [1057], [1061], [1065], [1069], [1073], [1077], [1081], [1085], [1089], [1093], [1097], [1101], [1105], [1109], [1113], [1117], [1121], [1125], [1129], [1133], [1137], [1141], [1145], [1149], [1153], [1157], [1161], [1165], [1169], [1173], [1177], [1181], [1185], [1189], [1193], [1197], [1201], [1205], [1209], [1213], [1217], [1221], [1225], [1229], [1233], [1237], [1241], [1245], [1249], [1253], [1257], [1261], [1265], [1269], [1273], [1277], [1281], [1285], [1289], [1293], [1297], [1301], [1305], [1309], [1313], [1317], [1321], [1325], [1329], [1333], [1337], [1341], [1345], [1349], [1353], [1357], [1361], [1365], [1369], [1373], [1377], [1381], [1385], [1389], [1393], [1397], [1401], [1405], [1409], [1413], [1417], [1421], [1425], [1429], [1433], [1437], [1441], [1445], [1449], [1453], [1457], [1461], [1465], [1469], [1473], [1477], [1481], [1485], [1488], [1552], [1556], [1560], [1566], [1570], [1572], [1579], [1580], [1581], [1583], [1584] [2018-11-07 20:53:14,915 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, IntervalDomain] [2018-11-07 20:53:14,915 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-07 20:53:16,384 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-11-07 20:53:16,387 INFO L272 AbstractInterpreter]: Visited 279 different actions 279 times. Never merged. Never widened. Never found a fixpoint. Largest state had 24 variables. [2018-11-07 20:53:16,421 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 20:53:16,421 INFO L398 sIntCurrentIteration]: Generating AbsInt predicates [2018-11-07 20:53:18,175 INFO L227 lantSequenceWeakener]: Weakened 410 states. On average, predicates are now at 77.6% of their original sizes. [2018-11-07 20:53:18,175 INFO L413 sIntCurrentIteration]: Unifying AI predicates [2018-11-07 20:53:22,315 INFO L415 sIntCurrentIteration]: We unified 431 AI predicates to 431 [2018-11-07 20:53:22,315 INFO L424 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-11-07 20:53:22,316 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-11-07 20:53:22,316 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [13] imperfect sequences [6] total 17 [2018-11-07 20:53:22,316 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-07 20:53:22,317 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2018-11-07 20:53:22,318 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2018-11-07 20:53:22,318 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=111, Unknown=0, NotChecked=0, Total=156 [2018-11-07 20:53:22,318 INFO L87 Difference]: Start difference. First operand 5504 states and 7967 transitions. Second operand 13 states. [2018-11-07 20:53:28,787 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-11-07 20:53:57,884 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-07 20:53:57,884 INFO L93 Difference]: Finished difference Result 11345 states and 16410 transitions. [2018-11-07 20:53:57,884 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2018-11-07 20:53:57,885 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 432 [2018-11-07 20:53:57,885 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-07 20:53:57,908 INFO L225 Difference]: With dead ends: 11345 [2018-11-07 20:53:57,908 INFO L226 Difference]: Without dead ends: 5847 [2018-11-07 20:53:57,928 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 438 GetRequests, 273 SyntacticMatches, 147 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 500 ImplicationChecksByTransitivity, 4.3s TimeCoverageRelationStatistics Valid=110, Invalid=270, Unknown=0, NotChecked=0, Total=380 [2018-11-07 20:53:57,933 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5847 states. [2018-11-07 20:53:58,040 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5847 to 5842. [2018-11-07 20:53:58,040 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5842 states. [2018-11-07 20:53:58,058 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5842 states to 5842 states and 8313 transitions. [2018-11-07 20:53:58,058 INFO L78 Accepts]: Start accepts. Automaton has 5842 states and 8313 transitions. Word has length 432 [2018-11-07 20:53:58,059 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-07 20:53:58,059 INFO L480 AbstractCegarLoop]: Abstraction has 5842 states and 8313 transitions. [2018-11-07 20:53:58,059 INFO L481 AbstractCegarLoop]: Interpolant automaton has 13 states. [2018-11-07 20:53:58,059 INFO L276 IsEmpty]: Start isEmpty. Operand 5842 states and 8313 transitions. [2018-11-07 20:53:58,082 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 525 [2018-11-07 20:53:58,082 INFO L367 BasicCegarLoop]: Found error trace [2018-11-07 20:53:58,083 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, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 20:53:58,084 INFO L423 AbstractCegarLoop]: === Iteration 6 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-07 20:53:58,084 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 20:53:58,084 INFO L82 PathProgramCache]: Analyzing trace with hash -761572322, now seen corresponding path program 1 times [2018-11-07 20:53:58,085 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-07 20:53:58,086 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 20:53:58,086 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-07 20:53:58,086 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 20:53:58,086 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-07 20:53:58,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-07 20:53:59,541 INFO L134 CoverageAnalysis]: Checked inductivity of 405 backedges. 200 proven. 115 refuted. 0 times theorem prover too weak. 90 trivial. 0 not checked. [2018-11-07 20:53:59,542 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-07 20:53:59,542 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-07 20:53:59,542 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 525 with the following transitions: [2018-11-07 20:53:59,543 INFO L202 CegarAbsIntRunner]: [0], [1], [180], [187], [195], [203], [211], [219], [227], [235], [243], [251], [259], [267], [275], [283], [291], [299], [307], [315], [323], [331], [339], [347], [355], [363], [371], [379], [387], [395], [403], [411], [415], [417], [420], [428], [436], [444], [452], [460], [468], [476], [484], [492], [500], [508], [516], [524], [532], [540], [548], [556], [564], [572], [580], [588], [596], [604], [612], [620], [628], [636], [644], [652], [660], [668], [673], [677], [681], [685], [689], [693], [697], [701], [705], [709], [713], [717], [721], [725], [729], [733], [737], [741], [745], [749], [753], [757], [760], [761], [765], [769], [773], [777], [781], [785], [789], [793], [797], [801], [805], [809], [813], [817], [821], [825], [829], [833], [837], [841], [845], [849], [853], [856], [857], [861], [865], [869], [873], [877], [881], [885], [889], [893], [897], [901], [905], [909], [913], [917], [921], [925], [929], [933], [937], [941], [945], [949], [953], [957], [961], [965], [969], [973], [977], [981], [985], [989], [993], [997], [1001], [1005], [1009], [1013], [1017], [1021], [1025], [1029], [1033], [1037], [1041], [1045], [1049], [1053], [1057], [1061], [1065], [1069], [1073], [1077], [1081], [1085], [1089], [1093], [1097], [1101], [1105], [1109], [1113], [1117], [1121], [1125], [1129], [1133], [1137], [1141], [1145], [1149], [1153], [1157], [1161], [1165], [1169], [1173], [1177], [1181], [1185], [1189], [1193], [1197], [1201], [1205], [1209], [1213], [1217], [1221], [1225], [1229], [1233], [1237], [1241], [1245], [1249], [1253], [1257], [1261], [1265], [1269], [1273], [1277], [1281], [1285], [1289], [1293], [1297], [1301], [1305], [1309], [1313], [1317], [1321], [1325], [1329], [1333], [1337], [1341], [1345], [1349], [1353], [1357], [1361], [1365], [1369], [1373], [1377], [1381], [1385], [1389], [1393], [1397], [1401], [1405], [1409], [1413], [1417], [1421], [1425], [1429], [1433], [1437], [1441], [1445], [1449], [1453], [1457], [1461], [1465], [1469], [1473], [1477], [1481], [1485], [1488], [1552], [1556], [1560], [1566], [1570], [1572], [1579], [1580], [1581], [1583], [1584] [2018-11-07 20:53:59,561 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, IntervalDomain] [2018-11-07 20:53:59,561 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-07 20:53:59,653 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-11-07 20:54:00,323 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-11-07 20:54:00,324 INFO L272 AbstractInterpreter]: Visited 283 different actions 836 times. Merged at 5 different actions 9 times. Never widened. Found 1 fixpoints after 1 different actions. Largest state had 24 variables. [2018-11-07 20:54:00,327 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 20:54:00,328 INFO L398 sIntCurrentIteration]: Generating AbsInt predicates [2018-11-07 20:54:01,180 INFO L227 lantSequenceWeakener]: Weakened 280 states. On average, predicates are now at 77.5% of their original sizes. [2018-11-07 20:54:01,181 INFO L413 sIntCurrentIteration]: Unifying AI predicates [2018-11-07 20:54:02,650 INFO L415 sIntCurrentIteration]: We unified 523 AI predicates to 523 [2018-11-07 20:54:02,650 INFO L424 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-11-07 20:54:02,650 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-11-07 20:54:02,651 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [18] imperfect sequences [6] total 22 [2018-11-07 20:54:02,651 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-07 20:54:02,652 INFO L459 AbstractCegarLoop]: Interpolant automaton has 18 states [2018-11-07 20:54:02,652 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2018-11-07 20:54:02,653 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=72, Invalid=234, Unknown=0, NotChecked=0, Total=306 [2018-11-07 20:54:02,653 INFO L87 Difference]: Start difference. First operand 5842 states and 8313 transitions. Second operand 18 states. [2018-11-07 20:54:38,472 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-07 20:54:38,472 INFO L93 Difference]: Finished difference Result 12516 states and 17851 transitions. [2018-11-07 20:54:38,473 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2018-11-07 20:54:38,473 INFO L78 Accepts]: Start accepts. Automaton has 18 states. Word has length 524 [2018-11-07 20:54:38,473 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-07 20:54:38,500 INFO L225 Difference]: With dead ends: 12516 [2018-11-07 20:54:38,500 INFO L226 Difference]: Without dead ends: 7018 [2018-11-07 20:54:38,518 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 533 GetRequests, 492 SyntacticMatches, 15 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 201 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=168, Invalid=588, Unknown=0, NotChecked=0, Total=756 [2018-11-07 20:54:38,524 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7018 states. [2018-11-07 20:54:38,649 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7018 to 6788. [2018-11-07 20:54:38,649 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6788 states. [2018-11-07 20:54:38,663 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6788 states to 6788 states and 9333 transitions. [2018-11-07 20:54:38,663 INFO L78 Accepts]: Start accepts. Automaton has 6788 states and 9333 transitions. Word has length 524 [2018-11-07 20:54:38,664 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-07 20:54:38,664 INFO L480 AbstractCegarLoop]: Abstraction has 6788 states and 9333 transitions. [2018-11-07 20:54:38,664 INFO L481 AbstractCegarLoop]: Interpolant automaton has 18 states. [2018-11-07 20:54:38,664 INFO L276 IsEmpty]: Start isEmpty. Operand 6788 states and 9333 transitions. [2018-11-07 20:54:38,687 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 561 [2018-11-07 20:54:38,688 INFO L367 BasicCegarLoop]: Found error trace [2018-11-07 20:54:38,688 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, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 20:54:38,689 INFO L423 AbstractCegarLoop]: === Iteration 7 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-07 20:54:38,689 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 20:54:38,689 INFO L82 PathProgramCache]: Analyzing trace with hash 164376854, now seen corresponding path program 1 times [2018-11-07 20:54:38,689 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-07 20:54:38,690 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 20:54:38,690 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-07 20:54:38,690 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 20:54:38,691 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-07 20:54:38,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-07 20:54:40,160 INFO L134 CoverageAnalysis]: Checked inductivity of 465 backedges. 224 proven. 115 refuted. 0 times theorem prover too weak. 126 trivial. 0 not checked. [2018-11-07 20:54:40,161 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-07 20:54:40,161 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-07 20:54:40,161 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 561 with the following transitions: [2018-11-07 20:54:40,162 INFO L202 CegarAbsIntRunner]: [0], [1], [180], [187], [195], [203], [211], [219], [227], [235], [243], [251], [259], [267], [275], [283], [291], [299], [307], [315], [323], [331], [339], [347], [355], [363], [371], [379], [387], [395], [403], [411], [415], [417], [420], [428], [436], [444], [452], [460], [468], [476], [484], [492], [500], [508], [516], [524], [532], [540], [548], [556], [564], [572], [580], [588], [596], [604], [612], [620], [628], [636], [644], [652], [660], [668], [673], [677], [681], [685], [689], [693], [697], [701], [705], [709], [713], [717], [721], [725], [729], [733], [737], [741], [745], [749], [753], [757], [761], [765], [769], [773], [777], [781], [785], [789], [793], [797], [801], [805], [809], [813], [817], [821], [825], [829], [833], [837], [841], [845], [849], [853], [856], [857], [861], [865], [869], [873], [877], [881], [885], [889], [893], [897], [901], [904], [905], [909], [913], [917], [921], [925], [929], [933], [937], [941], [945], [949], [953], [957], [961], [965], [969], [973], [977], [981], [985], [989], [993], [997], [1001], [1005], [1009], [1013], [1017], [1021], [1025], [1029], [1033], [1037], [1041], [1045], [1049], [1053], [1057], [1061], [1065], [1069], [1073], [1077], [1081], [1085], [1089], [1093], [1097], [1101], [1105], [1109], [1113], [1117], [1121], [1125], [1129], [1133], [1137], [1141], [1145], [1149], [1153], [1157], [1161], [1165], [1169], [1173], [1177], [1181], [1185], [1189], [1193], [1197], [1201], [1205], [1209], [1213], [1217], [1221], [1225], [1229], [1233], [1237], [1241], [1245], [1249], [1253], [1257], [1261], [1265], [1269], [1273], [1277], [1281], [1285], [1289], [1293], [1297], [1301], [1305], [1309], [1313], [1317], [1321], [1325], [1329], [1333], [1337], [1341], [1345], [1349], [1353], [1357], [1361], [1365], [1369], [1373], [1377], [1381], [1385], [1389], [1393], [1397], [1401], [1405], [1409], [1413], [1417], [1421], [1425], [1429], [1433], [1437], [1441], [1445], [1449], [1453], [1457], [1461], [1465], [1469], [1473], [1477], [1481], [1485], [1488], [1552], [1556], [1560], [1566], [1570], [1572], [1579], [1580], [1581], [1583], [1584] [2018-11-07 20:54:40,168 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, IntervalDomain] [2018-11-07 20:54:40,168 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-07 20:54:40,286 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-11-07 20:54:40,834 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-11-07 20:54:40,835 INFO L272 AbstractInterpreter]: Visited 283 different actions 836 times. Merged at 5 different actions 9 times. Never widened. Found 1 fixpoints after 1 different actions. Largest state had 24 variables. [2018-11-07 20:54:40,848 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 20:54:40,848 INFO L398 sIntCurrentIteration]: Generating AbsInt predicates [2018-11-07 20:54:41,513 INFO L227 lantSequenceWeakener]: Weakened 280 states. On average, predicates are now at 77.5% of their original sizes. [2018-11-07 20:54:41,514 INFO L413 sIntCurrentIteration]: Unifying AI predicates [2018-11-07 20:54:41,914 INFO L415 sIntCurrentIteration]: We unified 559 AI predicates to 559 [2018-11-07 20:54:41,914 INFO L424 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-11-07 20:54:41,914 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-11-07 20:54:41,915 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [19] imperfect sequences [13] total 30 [2018-11-07 20:54:41,915 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-07 20:54:41,916 INFO L459 AbstractCegarLoop]: Interpolant automaton has 19 states [2018-11-07 20:54:41,916 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2018-11-07 20:54:41,916 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=79, Invalid=263, Unknown=0, NotChecked=0, Total=342 [2018-11-07 20:54:41,917 INFO L87 Difference]: Start difference. First operand 6788 states and 9333 transitions. Second operand 19 states. [2018-11-07 20:55:14,194 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-07 20:55:14,194 INFO L93 Difference]: Finished difference Result 13529 states and 19001 transitions. [2018-11-07 20:55:14,195 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2018-11-07 20:55:14,195 INFO L78 Accepts]: Start accepts. Automaton has 19 states. Word has length 560 [2018-11-07 20:55:14,195 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-07 20:55:14,236 INFO L225 Difference]: With dead ends: 13529 [2018-11-07 20:55:14,236 INFO L226 Difference]: Without dead ends: 7685 [2018-11-07 20:55:14,253 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 569 GetRequests, 542 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 176 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=177, Invalid=635, Unknown=0, NotChecked=0, Total=812 [2018-11-07 20:55:14,262 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7685 states. [2018-11-07 20:55:14,417 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7685 to 7451. [2018-11-07 20:55:14,417 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7451 states. [2018-11-07 20:55:14,433 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7451 states to 7451 states and 10069 transitions. [2018-11-07 20:55:14,434 INFO L78 Accepts]: Start accepts. Automaton has 7451 states and 10069 transitions. Word has length 560 [2018-11-07 20:55:14,435 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-07 20:55:14,435 INFO L480 AbstractCegarLoop]: Abstraction has 7451 states and 10069 transitions. [2018-11-07 20:55:14,435 INFO L481 AbstractCegarLoop]: Interpolant automaton has 19 states. [2018-11-07 20:55:14,435 INFO L276 IsEmpty]: Start isEmpty. Operand 7451 states and 10069 transitions. [2018-11-07 20:55:14,475 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 673 [2018-11-07 20:55:14,475 INFO L367 BasicCegarLoop]: Found error trace [2018-11-07 20:55:14,476 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, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2018-11-07 20:55:14,476 INFO L423 AbstractCegarLoop]: === Iteration 8 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-07 20:55:14,476 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 20:55:14,477 INFO L82 PathProgramCache]: Analyzing trace with hash -1942402250, now seen corresponding path program 1 times [2018-11-07 20:55:14,477 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-07 20:55:14,479 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 20:55:14,479 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-07 20:55:14,479 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 20:55:14,479 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-07 20:55:14,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-07 20:55:15,166 WARN L179 SmtUtils]: Spent 235.00 ms on a formula simplification that was a NOOP. DAG size: 31 [2018-11-07 20:55:15,883 INFO L134 CoverageAnalysis]: Checked inductivity of 577 backedges. 215 proven. 257 refuted. 0 times theorem prover too weak. 105 trivial. 0 not checked. [2018-11-07 20:55:15,883 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-07 20:55:15,883 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-07 20:55:15,884 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 673 with the following transitions: [2018-11-07 20:55:15,884 INFO L202 CegarAbsIntRunner]: [0], [1], [180], [187], [195], [203], [211], [219], [227], [235], [243], [251], [259], [267], [275], [283], [291], [299], [307], [315], [323], [331], [339], [347], [355], [363], [371], [379], [387], [395], [403], [411], [415], [417], [420], [428], [436], [444], [452], [460], [468], [476], [484], [492], [500], [508], [516], [524], [532], [540], [548], [556], [564], [572], [580], [588], [596], [604], [612], [620], [628], [636], [644], [652], [660], [668], [673], [677], [681], [685], [689], [693], [697], [701], [705], [709], [713], [717], [721], [725], [729], [733], [737], [741], [745], [749], [753], [757], [761], [765], [769], [773], [777], [781], [785], [789], [793], [797], [801], [805], [809], [813], [817], [821], [825], [829], [833], [837], [841], [845], [849], [853], [856], [857], [861], [865], [869], [873], [877], [881], [885], [889], [893], [897], [901], [905], [909], [913], [917], [921], [925], [929], [933], [937], [941], [945], [949], [953], [957], [961], [965], [969], [973], [977], [981], [985], [989], [993], [997], [1001], [1005], [1009], [1013], [1017], [1021], [1025], [1029], [1033], [1037], [1041], [1045], [1049], [1053], [1057], [1061], [1065], [1069], [1073], [1077], [1081], [1085], [1089], [1093], [1097], [1101], [1105], [1109], [1113], [1117], [1121], [1125], [1129], [1133], [1137], [1141], [1145], [1149], [1153], [1157], [1161], [1165], [1169], [1173], [1177], [1181], [1185], [1189], [1193], [1197], [1201], [1205], [1209], [1213], [1217], [1221], [1225], [1229], [1233], [1237], [1241], [1245], [1249], [1253], [1257], [1261], [1265], [1269], [1273], [1277], [1281], [1285], [1289], [1293], [1297], [1301], [1305], [1309], [1313], [1317], [1321], [1325], [1329], [1333], [1337], [1341], [1345], [1349], [1352], [1353], [1357], [1361], [1365], [1369], [1373], [1377], [1381], [1385], [1389], [1393], [1397], [1401], [1405], [1409], [1413], [1417], [1421], [1425], [1429], [1433], [1437], [1441], [1445], [1449], [1453], [1457], [1461], [1465], [1469], [1473], [1477], [1481], [1485], [1488], [1552], [1556], [1560], [1566], [1570], [1572], [1579], [1580], [1581], [1583], [1584] [2018-11-07 20:55:15,888 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, IntervalDomain] [2018-11-07 20:55:15,888 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-07 20:55:16,315 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-11-07 20:55:16,315 INFO L272 AbstractInterpreter]: Visited 283 different actions 562 times. Merged at 5 different actions 7 times. Never widened. Found 1 fixpoints after 1 different actions. Largest state had 24 variables. [2018-11-07 20:55:16,326 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 20:55:16,326 INFO L398 sIntCurrentIteration]: Generating AbsInt predicates [2018-11-07 20:55:17,448 INFO L227 lantSequenceWeakener]: Weakened 202 states. On average, predicates are now at 78.06% of their original sizes. [2018-11-07 20:55:17,449 INFO L413 sIntCurrentIteration]: Unifying AI predicates [2018-11-07 20:55:18,852 INFO L415 sIntCurrentIteration]: We unified 671 AI predicates to 671 [2018-11-07 20:55:18,852 INFO L424 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-11-07 20:55:18,853 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-11-07 20:55:18,853 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [21] imperfect sequences [8] total 27 [2018-11-07 20:55:18,853 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-07 20:55:18,855 INFO L459 AbstractCegarLoop]: Interpolant automaton has 21 states [2018-11-07 20:55:18,855 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2018-11-07 20:55:18,855 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=88, Invalid=332, Unknown=0, NotChecked=0, Total=420 [2018-11-07 20:55:18,856 INFO L87 Difference]: Start difference. First operand 7451 states and 10069 transitions. Second operand 21 states. [2018-11-07 20:55:21,120 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-11-07 20:55:44,793 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-07 20:55:44,794 INFO L93 Difference]: Finished difference Result 14280 states and 19766 transitions. [2018-11-07 20:55:44,794 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2018-11-07 20:55:44,794 INFO L78 Accepts]: Start accepts. Automaton has 21 states. Word has length 672 [2018-11-07 20:55:44,795 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-07 20:55:44,816 INFO L225 Difference]: With dead ends: 14280 [2018-11-07 20:55:44,817 INFO L226 Difference]: Without dead ends: 8087 [2018-11-07 20:55:44,829 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 685 GetRequests, 588 SyntacticMatches, 64 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1238 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=227, Invalid=963, Unknown=0, NotChecked=0, Total=1190 [2018-11-07 20:55:44,835 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8087 states. [2018-11-07 20:55:44,971 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8087 to 8082. [2018-11-07 20:55:44,971 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8082 states. [2018-11-07 20:55:44,990 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8082 states to 8082 states and 10732 transitions. [2018-11-07 20:55:44,991 INFO L78 Accepts]: Start accepts. Automaton has 8082 states and 10732 transitions. Word has length 672 [2018-11-07 20:55:44,991 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-07 20:55:44,992 INFO L480 AbstractCegarLoop]: Abstraction has 8082 states and 10732 transitions. [2018-11-07 20:55:44,994 INFO L481 AbstractCegarLoop]: Interpolant automaton has 21 states. [2018-11-07 20:55:44,994 INFO L276 IsEmpty]: Start isEmpty. Operand 8082 states and 10732 transitions. [2018-11-07 20:55:45,019 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 681 [2018-11-07 20:55:45,019 INFO L367 BasicCegarLoop]: Found error trace [2018-11-07 20:55:45,020 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, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2018-11-07 20:55:45,020 INFO L423 AbstractCegarLoop]: === Iteration 9 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-07 20:55:45,021 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 20:55:45,021 INFO L82 PathProgramCache]: Analyzing trace with hash -1487490650, now seen corresponding path program 1 times [2018-11-07 20:55:45,021 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-07 20:55:45,022 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 20:55:45,022 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-07 20:55:45,022 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 20:55:45,022 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-07 20:55:45,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-07 20:55:45,556 WARN L179 SmtUtils]: Spent 155.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 4 [2018-11-07 20:55:46,354 INFO L134 CoverageAnalysis]: Checked inductivity of 585 backedges. 111 proven. 402 refuted. 0 times theorem prover too weak. 72 trivial. 0 not checked. [2018-11-07 20:55:46,354 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-07 20:55:46,355 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-07 20:55:46,355 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 681 with the following transitions: [2018-11-07 20:55:46,355 INFO L202 CegarAbsIntRunner]: [0], [1], [180], [187], [195], [203], [211], [219], [227], [235], [243], [251], [259], [267], [275], [283], [291], [299], [307], [315], [323], [331], [339], [347], [355], [363], [371], [379], [387], [395], [403], [411], [415], [417], [420], [428], [436], [444], [452], [460], [468], [476], [484], [492], [500], [508], [516], [524], [532], [540], [548], [556], [564], [572], [580], [588], [596], [604], [612], [620], [628], [636], [644], [652], [660], [668], [673], [677], [681], [685], [689], [693], [697], [701], [705], [709], [713], [717], [721], [725], [729], [733], [737], [741], [745], [749], [753], [757], [761], [765], [769], [773], [777], [781], [785], [789], [793], [797], [801], [805], [809], [813], [817], [821], [825], [829], [833], [837], [841], [845], [849], [853], [856], [857], [861], [865], [869], [873], [877], [881], [885], [889], [893], [897], [901], [905], [909], [913], [917], [921], [925], [929], [933], [937], [941], [945], [949], [953], [957], [961], [965], [969], [973], [977], [981], [985], [989], [993], [997], [1001], [1005], [1009], [1013], [1017], [1021], [1025], [1029], [1033], [1037], [1041], [1045], [1049], [1053], [1057], [1061], [1065], [1069], [1073], [1077], [1081], [1085], [1089], [1093], [1097], [1101], [1105], [1109], [1113], [1117], [1121], [1125], [1129], [1133], [1137], [1141], [1145], [1149], [1153], [1157], [1161], [1165], [1169], [1173], [1177], [1181], [1185], [1189], [1193], [1197], [1201], [1205], [1209], [1213], [1217], [1221], [1225], [1229], [1233], [1237], [1241], [1245], [1249], [1253], [1257], [1261], [1265], [1269], [1273], [1277], [1281], [1285], [1289], [1293], [1297], [1301], [1305], [1309], [1313], [1317], [1321], [1325], [1329], [1333], [1337], [1341], [1345], [1349], [1353], [1357], [1361], [1365], [1369], [1373], [1377], [1381], [1384], [1385], [1389], [1393], [1397], [1401], [1405], [1409], [1413], [1417], [1421], [1425], [1429], [1433], [1437], [1441], [1445], [1449], [1453], [1457], [1461], [1465], [1469], [1473], [1477], [1481], [1485], [1488], [1552], [1556], [1560], [1566], [1570], [1572], [1579], [1580], [1581], [1583], [1584] [2018-11-07 20:55:46,359 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, IntervalDomain] [2018-11-07 20:55:46,360 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-07 20:55:49,351 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-11-07 20:55:49,351 INFO L272 AbstractInterpreter]: Visited 283 different actions 2499 times. Merged at 5 different actions 40 times. Widened at 1 different actions 4 times. Found 1 fixpoints after 1 different actions. Largest state had 24 variables. [2018-11-07 20:55:49,360 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 20:55:49,360 INFO L398 sIntCurrentIteration]: Generating AbsInt predicates [2018-11-07 20:55:50,263 INFO L227 lantSequenceWeakener]: Weakened 169 states. On average, predicates are now at 78.13% of their original sizes. [2018-11-07 20:55:50,263 INFO L413 sIntCurrentIteration]: Unifying AI predicates [2018-11-07 20:55:50,698 INFO L415 sIntCurrentIteration]: We unified 679 AI predicates to 679 [2018-11-07 20:55:50,698 INFO L424 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-11-07 20:55:50,698 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-11-07 20:55:50,699 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [24] imperfect sequences [6] total 28 [2018-11-07 20:55:50,699 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-07 20:55:50,700 INFO L459 AbstractCegarLoop]: Interpolant automaton has 24 states [2018-11-07 20:55:50,701 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2018-11-07 20:55:50,701 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=122, Invalid=430, Unknown=0, NotChecked=0, Total=552 [2018-11-07 20:55:50,701 INFO L87 Difference]: Start difference. First operand 8082 states and 10732 transitions. Second operand 24 states. [2018-11-07 20:55:52,620 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-11-07 20:56:11,362 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-07 20:56:11,362 INFO L93 Difference]: Finished difference Result 14916 states and 20421 transitions. [2018-11-07 20:56:11,362 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2018-11-07 20:56:11,362 INFO L78 Accepts]: Start accepts. Automaton has 24 states. Word has length 680 [2018-11-07 20:56:11,363 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-07 20:56:11,385 INFO L225 Difference]: With dead ends: 14916 [2018-11-07 20:56:11,386 INFO L226 Difference]: Without dead ends: 8723 [2018-11-07 20:56:11,399 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 690 GetRequests, 657 SyntacticMatches, 0 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 335 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=233, Invalid=957, Unknown=0, NotChecked=0, Total=1190 [2018-11-07 20:56:11,406 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8723 states. [2018-11-07 20:56:11,536 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8723 to 8715. [2018-11-07 20:56:11,536 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8715 states. [2018-11-07 20:56:11,553 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8715 states to 8715 states and 11412 transitions. [2018-11-07 20:56:11,553 INFO L78 Accepts]: Start accepts. Automaton has 8715 states and 11412 transitions. Word has length 680 [2018-11-07 20:56:11,554 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-07 20:56:11,554 INFO L480 AbstractCegarLoop]: Abstraction has 8715 states and 11412 transitions. [2018-11-07 20:56:11,554 INFO L481 AbstractCegarLoop]: Interpolant automaton has 24 states. [2018-11-07 20:56:11,554 INFO L276 IsEmpty]: Start isEmpty. Operand 8715 states and 11412 transitions. [2018-11-07 20:56:11,576 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 765 [2018-11-07 20:56:11,576 INFO L367 BasicCegarLoop]: Found error trace [2018-11-07 20:56:11,577 INFO L375 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2018-11-07 20:56:11,577 INFO L423 AbstractCegarLoop]: === Iteration 10 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-07 20:56:11,578 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 20:56:11,578 INFO L82 PathProgramCache]: Analyzing trace with hash -1045163880, now seen corresponding path program 1 times [2018-11-07 20:56:11,578 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-07 20:56:11,579 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 20:56:11,579 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-07 20:56:11,579 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 20:56:11,579 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-07 20:56:11,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-07 20:56:12,436 WARN L179 SmtUtils]: Spent 281.00 ms on a formula simplification that was a NOOP. DAG size: 19 [2018-11-07 20:56:13,815 INFO L134 CoverageAnalysis]: Checked inductivity of 888 backedges. 240 proven. 352 refuted. 0 times theorem prover too weak. 296 trivial. 0 not checked. [2018-11-07 20:56:13,816 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-07 20:56:13,816 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-07 20:56:13,816 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 765 with the following transitions: [2018-11-07 20:56:13,816 INFO L202 CegarAbsIntRunner]: [0], [1], [180], [187], [195], [203], [211], [219], [227], [235], [243], [251], [259], [267], [275], [283], [291], [299], [307], [315], [323], [331], [339], [347], [355], [363], [371], [379], [387], [395], [403], [411], [415], [417], [420], [428], [436], [444], [452], [460], [468], [476], [484], [492], [500], [508], [516], [524], [532], [540], [548], [556], [564], [572], [580], [588], [596], [604], [612], [620], [628], [636], [644], [652], [660], [668], [673], [677], [681], [685], [689], [693], [697], [701], [705], [709], [713], [717], [721], [725], [729], [733], [737], [741], [745], [749], [753], [757], [760], [761], [765], [769], [773], [777], [781], [785], [789], [793], [797], [801], [805], [809], [813], [817], [821], [825], [829], [833], [837], [841], [845], [849], [853], [856], [857], [861], [865], [869], [873], [877], [881], [885], [889], [893], [897], [901], [905], [909], [913], [917], [921], [925], [929], [933], [937], [941], [945], [949], [953], [957], [961], [965], [969], [973], [977], [981], [985], [989], [993], [997], [1001], [1005], [1009], [1013], [1017], [1021], [1025], [1029], [1033], [1037], [1041], [1045], [1049], [1053], [1057], [1061], [1065], [1069], [1073], [1077], [1081], [1085], [1089], [1093], [1097], [1101], [1105], [1109], [1113], [1117], [1121], [1125], [1129], [1133], [1137], [1141], [1145], [1149], [1153], [1157], [1161], [1165], [1169], [1173], [1177], [1181], [1185], [1189], [1193], [1197], [1201], [1205], [1209], [1213], [1217], [1221], [1225], [1229], [1233], [1237], [1241], [1245], [1249], [1253], [1257], [1261], [1265], [1269], [1273], [1277], [1281], [1285], [1289], [1293], [1297], [1301], [1305], [1309], [1313], [1317], [1321], [1325], [1329], [1333], [1337], [1341], [1345], [1349], [1352], [1353], [1357], [1361], [1365], [1369], [1373], [1377], [1381], [1385], [1389], [1393], [1397], [1401], [1405], [1409], [1413], [1417], [1421], [1425], [1429], [1433], [1437], [1441], [1445], [1449], [1453], [1457], [1461], [1465], [1469], [1473], [1477], [1481], [1485], [1488], [1552], [1556], [1560], [1566], [1570], [1572], [1579], [1580], [1581], [1583], [1584] [2018-11-07 20:56:13,820 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, IntervalDomain] [2018-11-07 20:56:13,821 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-07 20:56:13,877 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. Received shutdown request... [2018-11-07 20:56:14,849 WARN L572 FixpointEngine]: Received timeout, aborting fixpoint engine [2018-11-07 20:56:14,850 WARN L158 AbstractInterpreter]: Abstract interpretation run out of time [2018-11-07 20:56:14,851 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: AbsInt can only provide a hoare triple checker if it generated fixpoints [2018-11-07 20:56:14,851 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-07 20:56:14,851 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 20:56:14,863 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-07 20:56:14,863 INFO L288 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-11-07 20:56:15,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-07 20:56:15,126 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-07 20:56:15,177 INFO L177 TraceCheckSpWp]: Timeout while computing interpolants [2018-11-07 20:56:15,378 WARN L521 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-11-07 20:56:15,379 WARN L549 AbstractCegarLoop]: Verification canceled [2018-11-07 20:56:15,384 WARN L205 ceAbstractionStarter]: Timeout [2018-11-07 20:56:15,384 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 07.11 08:56:15 BoogieIcfgContainer [2018-11-07 20:56:15,384 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-11-07 20:56:15,385 INFO L168 Benchmark]: Toolchain (without parser) took 212471.68 ms. Allocated memory was 1.5 GB in the beginning and 4.8 GB in the end (delta: 3.3 GB). Free memory was 1.4 GB in the beginning and 2.6 GB in the end (delta: -1.2 GB). Peak memory consumption was 2.1 GB. Max. memory is 7.1 GB. [2018-11-07 20:56:15,387 INFO L168 Benchmark]: CDTParser took 0.21 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 20:56:15,387 INFO L168 Benchmark]: CACSL2BoogieTranslator took 1303.15 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: 74.0 MB). Peak memory consumption was 74.0 MB. Max. memory is 7.1 GB. [2018-11-07 20:56:15,388 INFO L168 Benchmark]: Boogie Procedure Inliner took 206.39 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 756.0 MB). Free memory was 1.4 GB in the beginning and 2.2 GB in the end (delta: -873.3 MB). Peak memory consumption was 27.1 MB. Max. memory is 7.1 GB. [2018-11-07 20:56:15,389 INFO L168 Benchmark]: Boogie Preprocessor took 169.23 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 20:56:15,389 INFO L168 Benchmark]: RCFGBuilder took 7175.90 ms. Allocated memory is still 2.3 GB. Free memory was 2.2 GB in the beginning and 1.9 GB in the end (delta: 280.3 MB). Peak memory consumption was 280.3 MB. Max. memory is 7.1 GB. [2018-11-07 20:56:15,390 INFO L168 Benchmark]: TraceAbstraction took 203611.90 ms. Allocated memory was 2.3 GB in the beginning and 4.8 GB in the end (delta: 2.6 GB). Free memory was 1.9 GB in the beginning and 2.6 GB in the end (delta: -700.3 MB). Peak memory consumption was 1.9 GB. Max. memory is 7.1 GB. [2018-11-07 20:56:15,395 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21 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 1303.15 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: 74.0 MB). Peak memory consumption was 74.0 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 206.39 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 756.0 MB). Free memory was 1.4 GB in the beginning and 2.2 GB in the end (delta: -873.3 MB). Peak memory consumption was 27.1 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 169.23 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 7175.90 ms. Allocated memory is still 2.3 GB. Free memory was 2.2 GB in the beginning and 1.9 GB in the end (delta: 280.3 MB). Peak memory consumption was 280.3 MB. Max. memory is 7.1 GB. * TraceAbstraction took 203611.90 ms. Allocated memory was 2.3 GB in the beginning and 4.8 GB in the end (delta: 2.6 GB). Free memory was 1.9 GB in the beginning and 2.6 GB in the end (delta: -700.3 MB). Peak memory consumption was 1.9 GB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResultAtElement [Line: 112]: Timeout (TraceAbstraction) Unable to prove that call of __VERIFIER_error() unreachable (line 112). Cancelled while BasicCegarLoop was analyzing trace of length 765 with TraceHistMax 5,while TraceCheckSpWp was constructing forward predicates,while PredicateComparison was comparing new predicate (quantifier-free) to 13 known predicates. - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 410 locations, 1 error locations. TIMEOUT Result, 203.5s OverallTime, 10 OverallIterations, 5 TraceHistogramMax, 169.9s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 2436 SDtfs, 26265 SDslu, 1598 SDs, 0 SdLazy, 28604 SolverSat, 4622 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 63.3s Time, PredicateUnifierStatistics: 10 DeclaredPredicates, 2950 GetRequests, 2560 SyntacticMatches, 231 SemanticMatches, 159 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2462 ImplicationChecksByTransitivity, 9.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=8715occurred in iteration=9, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 7.5s AbstIntTime, 6 AbstIntIterations, 5 AbstIntStrong, 0.9984013174836118 AbsIntWeakeningRatio, 0.05378973105134474 AbsIntAvgWeakeningVarsNumRemoved, 10.94586098498079 AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 1.2s AutomataMinimizationTime, 9 MinimizatonAttempts, 546 StatesRemovedByMinimization, 8 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.1s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 5.1s InterpolantComputationTime, 3485 NumberOfCodeBlocks, 3485 NumberOfCodeBlocksAsserted, 9 NumberOfCheckSat, 3476 ConstructedInterpolants, 0 QuantifiedInterpolants, 8971049 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 9 InterpolantComputations, 4 PerfectInterpolantSequences, 1323/2323 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Completed graceful shutdown