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_label16_true-unreach-call.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-df4b876 [2018-11-07 20:51:05,897 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-07 20:51:05,899 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-07 20:51:05,912 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-07 20:51:05,912 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-07 20:51:05,913 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-07 20:51:05,915 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-07 20:51:05,917 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-07 20:51:05,919 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-07 20:51:05,919 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-07 20:51:05,920 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-07 20:51:05,921 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-07 20:51:05,922 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-07 20:51:05,923 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-07 20:51:05,924 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-07 20:51:05,925 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-07 20:51:05,926 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-07 20:51:05,928 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-07 20:51:05,930 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-07 20:51:05,931 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-07 20:51:05,932 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-07 20:51:05,934 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-07 20:51:05,936 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-07 20:51:05,937 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-07 20:51:05,937 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-07 20:51:05,938 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-07 20:51:05,939 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-07 20:51:05,940 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-07 20:51:05,941 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-07 20:51:05,945 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-07 20:51:05,945 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-07 20:51:05,946 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-07 20:51:05,947 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-07 20:51:05,947 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-07 20:51:05,949 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-07 20:51:05,950 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-07 20:51:05,951 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 20:51:05,983 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-07 20:51:05,984 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-07 20:51:05,985 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-07 20:51:05,985 INFO L133 SettingsManager]: * User list type=DISABLED [2018-11-07 20:51:05,986 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-11-07 20:51:05,986 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-11-07 20:51:05,986 INFO L133 SettingsManager]: * Maximum recursion depth of evaluation operations=6 [2018-11-07 20:51:05,987 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-11-07 20:51:05,987 INFO L133 SettingsManager]: * Octagon Domain=false [2018-11-07 20:51:05,987 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-11-07 20:51:05,987 INFO L133 SettingsManager]: * Log string format=TERM [2018-11-07 20:51:05,987 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-11-07 20:51:05,987 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-11-07 20:51:05,988 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-07 20:51:05,988 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-07 20:51:05,990 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-07 20:51:05,990 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-07 20:51:05,990 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-07 20:51:05,990 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-07 20:51:05,991 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-07 20:51:05,991 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-07 20:51:05,991 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-07 20:51:05,991 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-07 20:51:05,991 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-07 20:51:05,993 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-07 20:51:05,993 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-07 20:51:05,993 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-07 20:51:05,993 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-07 20:51:05,994 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-07 20:51:05,994 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-11-07 20:51:05,994 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-07 20:51:05,994 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-11-07 20:51:05,994 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-11-07 20:51:05,995 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-11-07 20:51:05,995 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-11-07 20:51:06,071 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-07 20:51:06,085 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-07 20:51:06,089 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-07 20:51:06,091 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-07 20:51:06,092 INFO L276 PluginConnector]: CDTParser initialized [2018-11-07 20:51:06,093 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem16_label16_true-unreach-call.c [2018-11-07 20:51:06,162 INFO L218 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/dd948a6cc/679b3c1b30d04b1f950b69aa4da045c0/FLAG8b0ee5748 [2018-11-07 20:51:06,888 INFO L298 CDTParser]: Found 1 translation units. [2018-11-07 20:51:06,889 INFO L158 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem16_label16_true-unreach-call.c [2018-11-07 20:51:06,912 INFO L346 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/dd948a6cc/679b3c1b30d04b1f950b69aa4da045c0/FLAG8b0ee5748 [2018-11-07 20:51:06,931 INFO L354 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/dd948a6cc/679b3c1b30d04b1f950b69aa4da045c0 [2018-11-07 20:51:06,945 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-07 20:51:06,947 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-11-07 20:51:06,948 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-07 20:51:06,948 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-07 20:51:06,954 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-07 20:51:06,955 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 08:51:06" (1/1) ... [2018-11-07 20:51:06,958 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@710be24e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 08:51:06, skipping insertion in model container [2018-11-07 20:51:06,959 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 08:51:06" (1/1) ... [2018-11-07 20:51:06,970 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-07 20:51:07,070 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-11-07 20:51:07,862 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-11-07 20:51:07,866 INFO L189 MainTranslator]: Completed pre-run [2018-11-07 20:51:08,150 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-11-07 20:51:08,173 INFO L193 MainTranslator]: Completed translation [2018-11-07 20:51:08,174 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 08:51:08 WrapperNode [2018-11-07 20:51:08,174 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-07 20:51:08,175 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-07 20:51:08,176 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-07 20:51:08,176 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-07 20:51:08,186 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 08:51:08" (1/1) ... [2018-11-07 20:51:08,393 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 08:51:08" (1/1) ... [2018-11-07 20:51:08,410 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-07 20:51:08,410 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-07 20:51:08,410 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-07 20:51:08,410 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-07 20:51:08,423 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 08:51:08" (1/1) ... [2018-11-07 20:51:08,423 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 08:51:08" (1/1) ... [2018-11-07 20:51:08,435 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 08:51:08" (1/1) ... [2018-11-07 20:51:08,436 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 08:51:08" (1/1) ... [2018-11-07 20:51:08,499 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 08:51:08" (1/1) ... [2018-11-07 20:51:08,531 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 08:51:08" (1/1) ... [2018-11-07 20:51:08,548 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 08:51:08" (1/1) ... [2018-11-07 20:51:08,563 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-07 20:51:08,564 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-07 20:51:08,564 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-07 20:51:08,564 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-07 20:51:08,565 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 08:51:08" (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 20:51:08,635 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2018-11-07 20:51:08,635 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-07 20:51:08,635 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-07 20:51:08,635 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output2 [2018-11-07 20:51:08,635 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output2 [2018-11-07 20:51:08,636 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2018-11-07 20:51:08,636 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2018-11-07 20:51:08,636 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-07 20:51:08,636 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-07 20:51:08,636 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-07 20:51:08,637 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-07 20:51:15,271 INFO L276 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-07 20:51:15,271 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 08:51:15 BoogieIcfgContainer [2018-11-07 20:51:15,272 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-07 20:51:15,273 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-07 20:51:15,273 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-07 20:51:15,276 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-07 20:51:15,277 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.11 08:51:06" (1/3) ... [2018-11-07 20:51:15,277 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7d0c1f63 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 08:51:15, skipping insertion in model container [2018-11-07 20:51:15,278 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 08:51:08" (2/3) ... [2018-11-07 20:51:15,278 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7d0c1f63 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 08:51:15, skipping insertion in model container [2018-11-07 20:51:15,278 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 08:51:15" (3/3) ... [2018-11-07 20:51:15,280 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem16_label16_true-unreach-call.c [2018-11-07 20:51:15,290 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-07 20:51:15,299 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-11-07 20:51:15,315 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-11-07 20:51:15,357 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-07 20:51:15,357 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-07 20:51:15,357 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-07 20:51:15,358 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-07 20:51:15,358 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-07 20:51:15,358 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-07 20:51:15,358 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-07 20:51:15,358 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-07 20:51:15,397 INFO L276 IsEmpty]: Start isEmpty. Operand 410 states. [2018-11-07 20:51:15,408 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2018-11-07 20:51:15,408 INFO L367 BasicCegarLoop]: Found error trace [2018-11-07 20:51:15,409 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-07 20:51:15,412 INFO L423 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-07 20:51:15,417 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 20:51:15,417 INFO L82 PathProgramCache]: Analyzing trace with hash 657368747, now seen corresponding path program 1 times [2018-11-07 20:51:15,420 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-07 20:51:15,469 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 20:51:15,469 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-07 20:51:15,469 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 20:51:15,469 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-07 20:51:15,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-07 20:51:15,860 WARN L179 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 4 [2018-11-07 20:51:15,947 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 20:51:15,950 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-07 20:51:15,950 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-11-07 20:51:15,950 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-07 20:51:15,957 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-11-07 20:51:15,974 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-07 20:51:15,974 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-07 20:51:15,978 INFO L87 Difference]: Start difference. First operand 410 states. Second operand 3 states. [2018-11-07 20:51:19,255 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-07 20:51:19,255 INFO L93 Difference]: Finished difference Result 1156 states and 2144 transitions. [2018-11-07 20:51:19,256 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-07 20:51:19,257 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 49 [2018-11-07 20:51:19,258 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-07 20:51:19,282 INFO L225 Difference]: With dead ends: 1156 [2018-11-07 20:51:19,282 INFO L226 Difference]: Without dead ends: 744 [2018-11-07 20:51:19,293 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 20:51:19,315 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 744 states. [2018-11-07 20:51:19,395 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 744 to 744. [2018-11-07 20:51:19,396 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 744 states. [2018-11-07 20:51:19,403 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 744 states to 744 states and 1317 transitions. [2018-11-07 20:51:19,407 INFO L78 Accepts]: Start accepts. Automaton has 744 states and 1317 transitions. Word has length 49 [2018-11-07 20:51:19,407 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-07 20:51:19,408 INFO L480 AbstractCegarLoop]: Abstraction has 744 states and 1317 transitions. [2018-11-07 20:51:19,409 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-11-07 20:51:19,410 INFO L276 IsEmpty]: Start isEmpty. Operand 744 states and 1317 transitions. [2018-11-07 20:51:19,420 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 126 [2018-11-07 20:51:19,420 INFO L367 BasicCegarLoop]: Found error trace [2018-11-07 20:51:19,420 INFO L375 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 20:51:19,421 INFO L423 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-07 20:51:19,421 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 20:51:19,422 INFO L82 PathProgramCache]: Analyzing trace with hash 591590536, now seen corresponding path program 1 times [2018-11-07 20:51:19,422 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-07 20:51:19,423 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 20:51:19,423 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-07 20:51:19,424 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 20:51:19,424 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-07 20:51:19,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-07 20:51:19,754 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 42 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-07 20:51:19,755 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-07 20:51:19,755 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-11-07 20:51:19,755 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-07 20:51:19,757 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-11-07 20:51:19,758 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-11-07 20:51:19,758 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2018-11-07 20:51:19,758 INFO L87 Difference]: Start difference. First operand 744 states and 1317 transitions. Second operand 6 states. [2018-11-07 20:51:29,889 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-07 20:51:29,889 INFO L93 Difference]: Finished difference Result 2960 states and 5501 transitions. [2018-11-07 20:51:29,889 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2018-11-07 20:51:29,890 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 125 [2018-11-07 20:51:29,890 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-07 20:51:29,916 INFO L225 Difference]: With dead ends: 2960 [2018-11-07 20:51:29,916 INFO L226 Difference]: Without dead ends: 2222 [2018-11-07 20:51:29,932 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=32, Invalid=58, Unknown=0, NotChecked=0, Total=90 [2018-11-07 20:51:29,934 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2222 states. [2018-11-07 20:51:30,038 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2222 to 2174. [2018-11-07 20:51:30,038 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2174 states. [2018-11-07 20:51:30,053 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2174 states to 2174 states and 3683 transitions. [2018-11-07 20:51:30,053 INFO L78 Accepts]: Start accepts. Automaton has 2174 states and 3683 transitions. Word has length 125 [2018-11-07 20:51:30,054 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-07 20:51:30,054 INFO L480 AbstractCegarLoop]: Abstraction has 2174 states and 3683 transitions. [2018-11-07 20:51:30,054 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-11-07 20:51:30,054 INFO L276 IsEmpty]: Start isEmpty. Operand 2174 states and 3683 transitions. [2018-11-07 20:51:30,062 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2018-11-07 20:51:30,062 INFO L367 BasicCegarLoop]: Found error trace [2018-11-07 20:51:30,066 INFO L375 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 20:51:30,066 INFO L423 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-07 20:51:30,067 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 20:51:30,067 INFO L82 PathProgramCache]: Analyzing trace with hash 975106256, now seen corresponding path program 1 times [2018-11-07 20:51:30,067 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-07 20:51:30,068 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 20:51:30,068 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-07 20:51:30,069 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 20:51:30,069 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-07 20:51:30,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-07 20:51:30,302 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 42 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-07 20:51:30,302 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-07 20:51:30,302 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-11-07 20:51:30,302 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-07 20:51:30,303 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-11-07 20:51:30,303 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-11-07 20:51:30,304 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-11-07 20:51:30,304 INFO L87 Difference]: Start difference. First operand 2174 states and 3683 transitions. Second operand 6 states. [2018-11-07 20:51:35,682 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-07 20:51:35,683 INFO L93 Difference]: Finished difference Result 8056 states and 14415 transitions. [2018-11-07 20:51:35,687 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-11-07 20:51:35,687 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 129 [2018-11-07 20:51:35,688 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-07 20:51:35,731 INFO L225 Difference]: With dead ends: 8056 [2018-11-07 20:51:35,732 INFO L226 Difference]: Without dead ends: 5888 [2018-11-07 20:51:35,767 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 20:51:35,773 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5888 states. [2018-11-07 20:51:35,942 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5888 to 5825. [2018-11-07 20:51:35,942 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5825 states. [2018-11-07 20:51:35,976 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5825 states to 5825 states and 8990 transitions. [2018-11-07 20:51:35,977 INFO L78 Accepts]: Start accepts. Automaton has 5825 states and 8990 transitions. Word has length 129 [2018-11-07 20:51:35,978 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-07 20:51:35,978 INFO L480 AbstractCegarLoop]: Abstraction has 5825 states and 8990 transitions. [2018-11-07 20:51:35,978 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-11-07 20:51:35,978 INFO L276 IsEmpty]: Start isEmpty. Operand 5825 states and 8990 transitions. [2018-11-07 20:51:35,982 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2018-11-07 20:51:35,982 INFO L367 BasicCegarLoop]: Found error trace [2018-11-07 20:51:35,983 INFO L375 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 20:51:35,983 INFO L423 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-07 20:51:35,983 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 20:51:35,984 INFO L82 PathProgramCache]: Analyzing trace with hash -834708748, now seen corresponding path program 1 times [2018-11-07 20:51:35,984 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-07 20:51:35,987 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 20:51:35,987 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-07 20:51:35,987 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 20:51:35,987 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-07 20:51:36,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-07 20:51:36,310 WARN L179 SmtUtils]: Spent 148.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 4 [2018-11-07 20:51:36,373 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 42 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-07 20:51:36,374 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-07 20:51:36,374 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-11-07 20:51:36,374 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-07 20:51:36,375 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-11-07 20:51:36,375 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-11-07 20:51:36,375 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-11-07 20:51:36,375 INFO L87 Difference]: Start difference. First operand 5825 states and 8990 transitions. Second operand 6 states. [2018-11-07 20:51:40,713 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-07 20:51:40,713 INFO L93 Difference]: Finished difference Result 13811 states and 22555 transitions. [2018-11-07 20:51:40,717 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-11-07 20:51:40,717 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 131 [2018-11-07 20:51:40,718 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-07 20:51:40,772 INFO L225 Difference]: With dead ends: 13811 [2018-11-07 20:51:40,772 INFO L226 Difference]: Without dead ends: 7992 [2018-11-07 20:51:40,824 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2018-11-07 20:51:40,831 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7992 states. [2018-11-07 20:51:41,034 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7992 to 7914. [2018-11-07 20:51:41,034 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7914 states. [2018-11-07 20:51:41,063 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7914 states to 7914 states and 11631 transitions. [2018-11-07 20:51:41,064 INFO L78 Accepts]: Start accepts. Automaton has 7914 states and 11631 transitions. Word has length 131 [2018-11-07 20:51:41,064 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-07 20:51:41,065 INFO L480 AbstractCegarLoop]: Abstraction has 7914 states and 11631 transitions. [2018-11-07 20:51:41,065 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-11-07 20:51:41,065 INFO L276 IsEmpty]: Start isEmpty. Operand 7914 states and 11631 transitions. [2018-11-07 20:51:41,069 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2018-11-07 20:51:41,069 INFO L367 BasicCegarLoop]: Found error trace [2018-11-07 20:51:41,069 INFO L375 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 20:51:41,070 INFO L423 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-07 20:51:41,070 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 20:51:41,070 INFO L82 PathProgramCache]: Analyzing trace with hash 845250593, now seen corresponding path program 1 times [2018-11-07 20:51:41,070 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-07 20:51:41,071 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 20:51:41,071 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-07 20:51:41,071 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 20:51:41,071 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-07 20:51:41,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-07 20:51:41,307 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 42 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-07 20:51:41,307 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-07 20:51:41,308 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-11-07 20:51:41,308 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-07 20:51:41,308 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-11-07 20:51:41,309 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-11-07 20:51:41,309 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-11-07 20:51:41,309 INFO L87 Difference]: Start difference. First operand 7914 states and 11631 transitions. Second operand 6 states. [2018-11-07 20:51:44,697 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-07 20:51:44,698 INFO L93 Difference]: Finished difference Result 19303 states and 30706 transitions. [2018-11-07 20:51:44,700 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-11-07 20:51:44,700 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 134 [2018-11-07 20:51:44,701 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-07 20:51:44,780 INFO L225 Difference]: With dead ends: 19303 [2018-11-07 20:51:44,780 INFO L226 Difference]: Without dead ends: 11395 [2018-11-07 20:51:44,812 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 20:51:44,823 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11395 states. [2018-11-07 20:51:45,100 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11395 to 11330. [2018-11-07 20:51:45,100 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11330 states. [2018-11-07 20:51:45,140 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11330 states to 11330 states and 16228 transitions. [2018-11-07 20:51:45,141 INFO L78 Accepts]: Start accepts. Automaton has 11330 states and 16228 transitions. Word has length 134 [2018-11-07 20:51:45,141 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-07 20:51:45,141 INFO L480 AbstractCegarLoop]: Abstraction has 11330 states and 16228 transitions. [2018-11-07 20:51:45,141 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-11-07 20:51:45,142 INFO L276 IsEmpty]: Start isEmpty. Operand 11330 states and 16228 transitions. [2018-11-07 20:51:45,145 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 140 [2018-11-07 20:51:45,145 INFO L367 BasicCegarLoop]: Found error trace [2018-11-07 20:51:45,146 INFO L375 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 20:51:45,146 INFO L423 AbstractCegarLoop]: === Iteration 6 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-07 20:51:45,146 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 20:51:45,147 INFO L82 PathProgramCache]: Analyzing trace with hash 1926747012, now seen corresponding path program 1 times [2018-11-07 20:51:45,147 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-07 20:51:45,147 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 20:51:45,148 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-07 20:51:45,148 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 20:51:45,148 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-07 20:51:45,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-07 20:51:45,396 WARN L179 SmtUtils]: Spent 127.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 4 [2018-11-07 20:51:45,791 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 42 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-07 20:51:45,791 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-07 20:51:45,792 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-11-07 20:51:45,792 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-07 20:51:45,792 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-11-07 20:51:45,793 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-11-07 20:51:45,793 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-11-07 20:51:45,793 INFO L87 Difference]: Start difference. First operand 11330 states and 16228 transitions. Second operand 6 states. [2018-11-07 20:51:49,160 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-07 20:51:49,160 INFO L93 Difference]: Finished difference Result 24439 states and 35718 transitions. [2018-11-07 20:51:49,165 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-11-07 20:51:49,165 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 139 [2018-11-07 20:51:49,165 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-07 20:51:49,221 INFO L225 Difference]: With dead ends: 24439 [2018-11-07 20:51:49,221 INFO L226 Difference]: Without dead ends: 13115 [2018-11-07 20:51:49,253 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2018-11-07 20:51:49,265 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13115 states. [2018-11-07 20:51:49,507 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13115 to 13089. [2018-11-07 20:51:49,508 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13089 states. [2018-11-07 20:51:49,551 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13089 states to 13089 states and 17349 transitions. [2018-11-07 20:51:49,551 INFO L78 Accepts]: Start accepts. Automaton has 13089 states and 17349 transitions. Word has length 139 [2018-11-07 20:51:49,552 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-07 20:51:49,552 INFO L480 AbstractCegarLoop]: Abstraction has 13089 states and 17349 transitions. [2018-11-07 20:51:49,552 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-11-07 20:51:49,552 INFO L276 IsEmpty]: Start isEmpty. Operand 13089 states and 17349 transitions. [2018-11-07 20:51:49,556 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 142 [2018-11-07 20:51:49,556 INFO L367 BasicCegarLoop]: Found error trace [2018-11-07 20:51:49,556 INFO L375 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 20:51:49,556 INFO L423 AbstractCegarLoop]: === Iteration 7 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-07 20:51:49,557 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 20:51:49,557 INFO L82 PathProgramCache]: Analyzing trace with hash 520725928, now seen corresponding path program 1 times [2018-11-07 20:51:49,557 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-07 20:51:49,561 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 20:51:49,561 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-07 20:51:49,562 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 20:51:49,562 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-07 20:51:49,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-07 20:51:49,807 WARN L179 SmtUtils]: Spent 136.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 4 [2018-11-07 20:51:49,864 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 0 proven. 38 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2018-11-07 20:51:49,864 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-07 20:51:49,864 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-07 20:51:49,865 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 142 with the following transitions: [2018-11-07 20:51:49,867 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], [419], [427], [435], [443], [451], [459], [467], [471], [473], [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], [1552], [1556], [1560], [1566], [1570], [1572], [1579], [1580], [1581], [1583], [1584] [2018-11-07 20:51:49,934 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, IntervalDomain] [2018-11-07 20:51:49,934 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-07 20:51:50,643 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-11-07 20:51:51,147 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-11-07 20:51:51,150 INFO L272 AbstractInterpreter]: Visited 99 different actions 284 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 20:51:51,191 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 20:51:51,192 INFO L398 sIntCurrentIteration]: Generating AbsInt predicates [2018-11-07 20:51:51,740 INFO L227 lantSequenceWeakener]: Weakened 21 states. On average, predicates are now at 81.82% of their original sizes. [2018-11-07 20:51:51,740 INFO L413 sIntCurrentIteration]: Unifying AI predicates [2018-11-07 20:51:53,014 INFO L415 sIntCurrentIteration]: We unified 140 AI predicates to 140 [2018-11-07 20:51:53,014 INFO L424 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-11-07 20:51:53,015 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-11-07 20:51:53,015 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [16] imperfect sequences [4] total 18 [2018-11-07 20:51:53,015 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-07 20:51:53,016 INFO L459 AbstractCegarLoop]: Interpolant automaton has 16 states [2018-11-07 20:51:53,016 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2018-11-07 20:51:53,016 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=60, Invalid=180, Unknown=0, NotChecked=0, Total=240 [2018-11-07 20:51:53,017 INFO L87 Difference]: Start difference. First operand 13089 states and 17349 transitions. Second operand 16 states. [2018-11-07 20:52:33,002 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-07 20:52:33,002 INFO L93 Difference]: Finished difference Result 28610 states and 37762 transitions. [2018-11-07 20:52:33,003 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2018-11-07 20:52:33,003 INFO L78 Accepts]: Start accepts. Automaton has 16 states. Word has length 141 [2018-11-07 20:52:33,003 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-07 20:52:33,057 INFO L225 Difference]: With dead ends: 28610 [2018-11-07 20:52:33,058 INFO L226 Difference]: Without dead ends: 15527 [2018-11-07 20:52:33,105 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 149 GetRequests, 121 SyntacticMatches, 5 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 154 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=145, Invalid=455, Unknown=0, NotChecked=0, Total=600 [2018-11-07 20:52:33,117 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15527 states. [2018-11-07 20:52:33,420 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15527 to 15523. [2018-11-07 20:52:33,420 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15523 states. [2018-11-07 20:52:33,468 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15523 states to 15523 states and 19928 transitions. [2018-11-07 20:52:33,469 INFO L78 Accepts]: Start accepts. Automaton has 15523 states and 19928 transitions. Word has length 141 [2018-11-07 20:52:33,469 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-07 20:52:33,469 INFO L480 AbstractCegarLoop]: Abstraction has 15523 states and 19928 transitions. [2018-11-07 20:52:33,469 INFO L481 AbstractCegarLoop]: Interpolant automaton has 16 states. [2018-11-07 20:52:33,470 INFO L276 IsEmpty]: Start isEmpty. Operand 15523 states and 19928 transitions. [2018-11-07 20:52:33,472 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 178 [2018-11-07 20:52:33,472 INFO L367 BasicCegarLoop]: Found error trace [2018-11-07 20:52:33,473 INFO L375 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 20:52:33,473 INFO L423 AbstractCegarLoop]: === Iteration 8 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-07 20:52:33,473 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 20:52:33,474 INFO L82 PathProgramCache]: Analyzing trace with hash 322339888, now seen corresponding path program 1 times [2018-11-07 20:52:33,474 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-07 20:52:33,475 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 20:52:33,475 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-07 20:52:33,475 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 20:52:33,475 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-07 20:52:33,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-07 20:52:33,717 WARN L179 SmtUtils]: Spent 126.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 4 [2018-11-07 20:52:33,944 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 0 proven. 38 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2018-11-07 20:52:33,944 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-07 20:52:33,944 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-07 20:52:33,944 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 178 with the following transitions: [2018-11-07 20:52:33,945 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], [419], [427], [435], [443], [451], [459], [467], [471], [473], [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], [857], [861], [865], [869], [873], [877], [881], [885], [889], [893], [897], [901], [904], [1552], [1556], [1560], [1566], [1570], [1572], [1579], [1580], [1581], [1583], [1584] [2018-11-07 20:52:33,955 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, IntervalDomain] [2018-11-07 20:52:33,955 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-07 20:52:34,061 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-11-07 20:52:34,406 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-11-07 20:52:34,406 INFO L272 AbstractInterpreter]: Visited 135 different actions 392 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 20:52:34,433 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 20:52:34,434 INFO L398 sIntCurrentIteration]: Generating AbsInt predicates [2018-11-07 20:52:35,464 INFO L227 lantSequenceWeakener]: Weakened 21 states. On average, predicates are now at 81.82% of their original sizes. [2018-11-07 20:52:35,464 INFO L413 sIntCurrentIteration]: Unifying AI predicates [2018-11-07 20:52:36,029 INFO L415 sIntCurrentIteration]: We unified 176 AI predicates to 176 [2018-11-07 20:52:36,030 INFO L424 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-11-07 20:52:36,030 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-11-07 20:52:36,030 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [16] imperfect sequences [4] total 18 [2018-11-07 20:52:36,030 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-07 20:52:36,031 INFO L459 AbstractCegarLoop]: Interpolant automaton has 16 states [2018-11-07 20:52:36,031 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2018-11-07 20:52:36,031 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=61, Invalid=179, Unknown=0, NotChecked=0, Total=240 [2018-11-07 20:52:36,032 INFO L87 Difference]: Start difference. First operand 15523 states and 19928 transitions. Second operand 16 states. [2018-11-07 20:53:08,921 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-07 20:53:08,921 INFO L93 Difference]: Finished difference Result 31492 states and 40897 transitions. [2018-11-07 20:53:08,921 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2018-11-07 20:53:08,921 INFO L78 Accepts]: Start accepts. Automaton has 16 states. Word has length 177 [2018-11-07 20:53:08,922 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-07 20:53:08,978 INFO L225 Difference]: With dead ends: 31492 [2018-11-07 20:53:08,978 INFO L226 Difference]: Without dead ends: 17377 [2018-11-07 20:53:09,015 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 185 GetRequests, 157 SyntacticMatches, 5 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 119 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=144, Invalid=456, Unknown=0, NotChecked=0, Total=600 [2018-11-07 20:53:09,032 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17377 states. [2018-11-07 20:53:09,306 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17377 to 17143. [2018-11-07 20:53:09,307 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17143 states. [2018-11-07 20:53:09,359 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17143 states to 17143 states and 21816 transitions. [2018-11-07 20:53:09,359 INFO L78 Accepts]: Start accepts. Automaton has 17143 states and 21816 transitions. Word has length 177 [2018-11-07 20:53:09,360 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-07 20:53:09,360 INFO L480 AbstractCegarLoop]: Abstraction has 17143 states and 21816 transitions. [2018-11-07 20:53:09,360 INFO L481 AbstractCegarLoop]: Interpolant automaton has 16 states. [2018-11-07 20:53:09,360 INFO L276 IsEmpty]: Start isEmpty. Operand 17143 states and 21816 transitions. [2018-11-07 20:53:09,374 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 385 [2018-11-07 20:53:09,374 INFO L367 BasicCegarLoop]: Found error trace [2018-11-07 20:53:09,374 INFO L375 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2018-11-07 20:53:09,375 INFO L423 AbstractCegarLoop]: === Iteration 9 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-07 20:53:09,375 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 20:53:09,375 INFO L82 PathProgramCache]: Analyzing trace with hash -564714480, now seen corresponding path program 1 times [2018-11-07 20:53:09,375 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-07 20:53:09,376 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 20:53:09,376 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-07 20:53:09,377 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 20:53:09,377 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-07 20:53:09,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-07 20:53:10,061 INFO L134 CoverageAnalysis]: Checked inductivity of 179 backedges. 177 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-07 20:53:10,062 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-07 20:53:10,062 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-07 20:53:10,062 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 385 with the following transitions: [2018-11-07 20:53:10,064 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], [419], [427], [435], [443], [451], [459], [467], [471], [473], [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], [772], [773], [777], [781], [785], [789], [793], [797], [801], [805], [809], [813], [817], [821], [825], [829], [833], [837], [841], [845], [849], [853], [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], [1552], [1556], [1560], [1566], [1570], [1572], [1579], [1580], [1581], [1583], [1584] [2018-11-07 20:53:10,077 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, IntervalDomain] [2018-11-07 20:53:10,079 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-07 20:53:10,766 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-11-07 20:53:10,766 INFO L272 AbstractInterpreter]: Visited 248 different actions 492 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 20:53:10,809 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 20:53:10,810 INFO L398 sIntCurrentIteration]: Generating AbsInt predicates [2018-11-07 20:53:12,158 INFO L227 lantSequenceWeakener]: Weakened 154 states. On average, predicates are now at 78.51% of their original sizes. [2018-11-07 20:53:12,158 INFO L413 sIntCurrentIteration]: Unifying AI predicates [2018-11-07 20:53:14,396 INFO L415 sIntCurrentIteration]: We unified 383 AI predicates to 383 [2018-11-07 20:53:14,396 INFO L424 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-11-07 20:53:14,397 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-11-07 20:53:14,397 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [18] imperfect sequences [6] total 22 [2018-11-07 20:53:14,397 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-07 20:53:14,398 INFO L459 AbstractCegarLoop]: Interpolant automaton has 18 states [2018-11-07 20:53:14,398 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2018-11-07 20:53:14,399 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=62, Invalid=244, Unknown=0, NotChecked=0, Total=306 [2018-11-07 20:53:14,399 INFO L87 Difference]: Start difference. First operand 17143 states and 21816 transitions. Second operand 18 states. [2018-11-07 20:53:16,562 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-11-07 20:53:52,329 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-07 20:53:52,330 INFO L93 Difference]: Finished difference Result 32963 states and 42378 transitions. [2018-11-07 20:53:52,330 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2018-11-07 20:53:52,330 INFO L78 Accepts]: Start accepts. Automaton has 18 states. Word has length 384 [2018-11-07 20:53:52,330 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-07 20:53:52,381 INFO L225 Difference]: With dead ends: 32963 [2018-11-07 20:53:52,381 INFO L226 Difference]: Without dead ends: 17779 [2018-11-07 20:53:52,411 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 399 GetRequests, 290 SyntacticMatches, 77 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 616 ImplicationChecksByTransitivity, 2.4s TimeCoverageRelationStatistics Valid=213, Invalid=909, Unknown=0, NotChecked=0, Total=1122 [2018-11-07 20:53:52,422 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17779 states. [2018-11-07 20:53:52,685 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17779 to 17774. [2018-11-07 20:53:52,686 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17774 states. [2018-11-07 20:53:52,737 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17774 states to 17774 states and 22485 transitions. [2018-11-07 20:53:52,738 INFO L78 Accepts]: Start accepts. Automaton has 17774 states and 22485 transitions. Word has length 384 [2018-11-07 20:53:52,739 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-07 20:53:52,739 INFO L480 AbstractCegarLoop]: Abstraction has 17774 states and 22485 transitions. [2018-11-07 20:53:52,739 INFO L481 AbstractCegarLoop]: Interpolant automaton has 18 states. [2018-11-07 20:53:52,739 INFO L276 IsEmpty]: Start isEmpty. Operand 17774 states and 22485 transitions. [2018-11-07 20:53:52,756 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 393 [2018-11-07 20:53:52,756 INFO L367 BasicCegarLoop]: Found error trace [2018-11-07 20:53:52,757 INFO L375 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2018-11-07 20:53:52,757 INFO L423 AbstractCegarLoop]: === Iteration 10 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-07 20:53:52,757 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 20:53:52,757 INFO L82 PathProgramCache]: Analyzing trace with hash -1608566400, now seen corresponding path program 1 times [2018-11-07 20:53:52,758 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-07 20:53:52,758 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 20:53:52,759 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-07 20:53:52,759 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 20:53:52,760 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-07 20:53:52,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-07 20:53:53,618 INFO L134 CoverageAnalysis]: Checked inductivity of 179 backedges. 85 proven. 86 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2018-11-07 20:53:53,618 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-07 20:53:53,618 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-07 20:53:53,618 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 393 with the following transitions: [2018-11-07 20:53:53,619 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], [419], [427], [435], [443], [451], [459], [467], [471], [473], [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], [772], [773], [777], [781], [785], [789], [793], [797], [801], [805], [809], [813], [817], [821], [825], [829], [833], [837], [841], [845], [849], [853], [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], [1552], [1556], [1560], [1566], [1570], [1572], [1579], [1580], [1581], [1583], [1584] [2018-11-07 20:53:53,623 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, IntervalDomain] [2018-11-07 20:53:53,624 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-07 20:53:55,430 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-11-07 20:53:55,430 INFO L272 AbstractInterpreter]: Visited 256 different actions 2006 times. Merged at 5 different actions 35 times. Widened at 1 different actions 3 times. Found 1 fixpoints after 1 different actions. Largest state had 24 variables. [2018-11-07 20:53:55,438 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 20:53:55,438 INFO L398 sIntCurrentIteration]: Generating AbsInt predicates [2018-11-07 20:53:55,841 INFO L227 lantSequenceWeakener]: Weakened 230 states. On average, predicates are now at 78.08% of their original sizes. [2018-11-07 20:53:55,841 INFO L413 sIntCurrentIteration]: Unifying AI predicates [2018-11-07 20:53:56,094 INFO L415 sIntCurrentIteration]: We unified 391 AI predicates to 391 [2018-11-07 20:53:56,094 INFO L424 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-11-07 20:53:56,094 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-11-07 20:53:56,095 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [20] imperfect sequences [6] total 24 [2018-11-07 20:53:56,095 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-07 20:53:56,095 INFO L459 AbstractCegarLoop]: Interpolant automaton has 20 states [2018-11-07 20:53:56,096 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2018-11-07 20:53:56,096 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=78, Invalid=302, Unknown=0, NotChecked=0, Total=380 [2018-11-07 20:53:56,096 INFO L87 Difference]: Start difference. First operand 17774 states and 22485 transitions. Second operand 20 states. [2018-11-07 20:53:58,836 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-11-07 20:54:22,799 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-07 20:54:22,799 INFO L93 Difference]: Finished difference Result 33599 states and 43147 transitions. [2018-11-07 20:54:22,800 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2018-11-07 20:54:22,800 INFO L78 Accepts]: Start accepts. Automaton has 20 states. Word has length 392 [2018-11-07 20:54:22,801 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-07 20:54:22,858 INFO L225 Difference]: With dead ends: 33599 [2018-11-07 20:54:22,858 INFO L226 Difference]: Without dead ends: 18415 [2018-11-07 20:54:22,898 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 407 GetRequests, 373 SyntacticMatches, 0 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 298 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=249, Invalid=1011, Unknown=0, NotChecked=0, Total=1260 [2018-11-07 20:54:22,912 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18415 states. [2018-11-07 20:54:23,189 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18415 to 18407. [2018-11-07 20:54:23,190 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18407 states. [2018-11-07 20:54:23,242 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18407 states to 18407 states and 23194 transitions. [2018-11-07 20:54:23,243 INFO L78 Accepts]: Start accepts. Automaton has 18407 states and 23194 transitions. Word has length 392 [2018-11-07 20:54:23,243 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-07 20:54:23,243 INFO L480 AbstractCegarLoop]: Abstraction has 18407 states and 23194 transitions. [2018-11-07 20:54:23,244 INFO L481 AbstractCegarLoop]: Interpolant automaton has 20 states. [2018-11-07 20:54:23,244 INFO L276 IsEmpty]: Start isEmpty. Operand 18407 states and 23194 transitions. [2018-11-07 20:54:23,266 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 474 [2018-11-07 20:54:23,267 INFO L367 BasicCegarLoop]: Found error trace [2018-11-07 20:54:23,267 INFO L375 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2018-11-07 20:54:23,267 INFO L423 AbstractCegarLoop]: === Iteration 11 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-07 20:54:23,268 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 20:54:23,268 INFO L82 PathProgramCache]: Analyzing trace with hash 1218241157, now seen corresponding path program 1 times [2018-11-07 20:54:23,268 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-07 20:54:23,269 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 20:54:23,269 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-07 20:54:23,269 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 20:54:23,269 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-07 20:54:23,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-07 20:54:23,702 INFO L134 CoverageAnalysis]: Checked inductivity of 268 backedges. 87 proven. 0 refuted. 0 times theorem prover too weak. 181 trivial. 0 not checked. [2018-11-07 20:54:23,702 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-07 20:54:23,702 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-11-07 20:54:23,702 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-07 20:54:23,703 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-11-07 20:54:23,703 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-11-07 20:54:23,703 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-11-07 20:54:23,704 INFO L87 Difference]: Start difference. First operand 18407 states and 23194 transitions. Second operand 4 states. [2018-11-07 20:54:27,680 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-07 20:54:27,680 INFO L93 Difference]: Finished difference Result 43968 states and 59121 transitions. [2018-11-07 20:54:27,681 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-11-07 20:54:27,681 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 473 [2018-11-07 20:54:27,682 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-07 20:54:27,786 INFO L225 Difference]: With dead ends: 43968 [2018-11-07 20:54:27,787 INFO L226 Difference]: Without dead ends: 28444 [2018-11-07 20:54:27,859 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 1 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-11-07 20:54:27,880 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28444 states. [2018-11-07 20:54:28,331 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28444 to 28166. [2018-11-07 20:54:28,332 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 28166 states. [2018-11-07 20:54:28,429 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28166 states to 28166 states and 35342 transitions. [2018-11-07 20:54:28,430 INFO L78 Accepts]: Start accepts. Automaton has 28166 states and 35342 transitions. Word has length 473 [2018-11-07 20:54:28,430 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-07 20:54:28,431 INFO L480 AbstractCegarLoop]: Abstraction has 28166 states and 35342 transitions. [2018-11-07 20:54:28,431 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-11-07 20:54:28,431 INFO L276 IsEmpty]: Start isEmpty. Operand 28166 states and 35342 transitions. [2018-11-07 20:54:28,542 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 850 [2018-11-07 20:54:28,543 INFO L367 BasicCegarLoop]: Found error trace [2018-11-07 20:54:28,543 INFO L375 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 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, 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] [2018-11-07 20:54:28,544 INFO L423 AbstractCegarLoop]: === Iteration 12 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-07 20:54:28,544 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 20:54:28,544 INFO L82 PathProgramCache]: Analyzing trace with hash -779324895, now seen corresponding path program 1 times [2018-11-07 20:54:28,544 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-07 20:54:28,545 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 20:54:28,545 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-07 20:54:28,546 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 20:54:28,546 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-07 20:54:28,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-07 20:54:29,439 WARN L179 SmtUtils]: Spent 267.00 ms on a formula simplification that was a NOOP. DAG size: 19 [2018-11-07 20:54:29,781 WARN L179 SmtUtils]: Spent 243.00 ms on a formula simplification that was a NOOP. DAG size: 23 [2018-11-07 20:54:31,520 INFO L134 CoverageAnalysis]: Checked inductivity of 1693 backedges. 362 proven. 458 refuted. 0 times theorem prover too weak. 873 trivial. 0 not checked. [2018-11-07 20:54:31,521 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-07 20:54:31,521 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-07 20:54:31,521 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 850 with the following transitions: [2018-11-07 20:54:31,521 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], [419], [427], [435], [443], [451], [459], [467], [471], [473], [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], [692], [693], [697], [701], [705], [709], [713], [717], [721], [725], [728], [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], [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], [972], [973], [977], [981], [985], [989], [993], [997], [1001], [1005], [1009], [1013], [1017], [1021], [1025], [1029], [1033], [1037], [1041], [1045], [1048], [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], [1552], [1556], [1560], [1566], [1570], [1572], [1579], [1580], [1581], [1583], [1584] [2018-11-07 20:54:31,525 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, IntervalDomain] [2018-11-07 20:54:31,525 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-07 20:54:31,564 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-11-07 20:54:32,543 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-11-07 20:54:32,543 INFO L272 AbstractInterpreter]: Visited 252 different actions 1003 times. Merged at 7 different actions 28 times. Never widened. Found 5 fixpoints after 3 different actions. Largest state had 24 variables. [2018-11-07 20:54:32,550 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 20:54:32,550 INFO L398 sIntCurrentIteration]: Generating AbsInt predicates [2018-11-07 20:54:33,284 INFO L227 lantSequenceWeakener]: Weakened 846 states. On average, predicates are now at 77.49% of their original sizes. [2018-11-07 20:54:33,285 INFO L413 sIntCurrentIteration]: Unifying AI predicates [2018-11-07 20:54:33,394 INFO L415 sIntCurrentIteration]: We unified 848 AI predicates to 848 [2018-11-07 20:54:33,395 INFO L424 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-11-07 20:54:33,395 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-11-07 20:54:33,395 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [10] imperfect sequences [13] total 21 [2018-11-07 20:54:33,395 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-07 20:54:33,396 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2018-11-07 20:54:33,396 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2018-11-07 20:54:33,396 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2018-11-07 20:54:33,396 INFO L87 Difference]: Start difference. First operand 28166 states and 35342 transitions. Second operand 10 states. Received shutdown request... [2018-11-07 20:54:41,973 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2018-11-07 20:54:41,974 WARN L549 AbstractCegarLoop]: Verification canceled [2018-11-07 20:54:41,979 WARN L205 ceAbstractionStarter]: Timeout [2018-11-07 20:54:41,979 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 07.11 08:54:41 BoogieIcfgContainer [2018-11-07 20:54:41,979 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-11-07 20:54:41,980 INFO L168 Benchmark]: Toolchain (without parser) took 215034.58 ms. Allocated memory was 1.5 GB in the beginning and 4.9 GB in the end (delta: 3.4 GB). Free memory was 1.4 GB in the beginning and 1.8 GB in the end (delta: -426.3 MB). Peak memory consumption was 2.9 GB. Max. memory is 7.1 GB. [2018-11-07 20:54:41,981 INFO L168 Benchmark]: CDTParser took 0.23 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 20:54:41,981 INFO L168 Benchmark]: CACSL2BoogieTranslator took 1226.31 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.3 GB in the end (delta: 74.0 MB). Peak memory consumption was 74.0 MB. Max. memory is 7.1 GB. [2018-11-07 20:54:41,982 INFO L168 Benchmark]: Boogie Procedure Inliner took 234.52 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 760.2 MB). Free memory was 1.3 GB in the beginning and 2.2 GB in the end (delta: -887.1 MB). Peak memory consumption was 27.1 MB. Max. memory is 7.1 GB. [2018-11-07 20:54:41,983 INFO L168 Benchmark]: Boogie Preprocessor took 153.45 ms. Allocated memory is still 2.3 GB. Free memory was 2.2 GB in the beginning and 2.2 GB in the end (delta: 13.8 MB). Peak memory consumption was 13.8 MB. Max. memory is 7.1 GB. [2018-11-07 20:54:41,984 INFO L168 Benchmark]: RCFGBuilder took 6707.95 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: 271.5 MB). Peak memory consumption was 271.5 MB. Max. memory is 7.1 GB. [2018-11-07 20:54:41,984 INFO L168 Benchmark]: TraceAbstraction took 206706.38 ms. Allocated memory was 2.3 GB in the beginning and 4.9 GB in the end (delta: 2.6 GB). Free memory was 1.9 GB in the beginning and 1.8 GB in the end (delta: 101.5 MB). Peak memory consumption was 2.7 GB. Max. memory is 7.1 GB. [2018-11-07 20:54:41,989 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23 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 1226.31 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.3 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 234.52 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 760.2 MB). Free memory was 1.3 GB in the beginning and 2.2 GB in the end (delta: -887.1 MB). Peak memory consumption was 27.1 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 153.45 ms. Allocated memory is still 2.3 GB. Free memory was 2.2 GB in the beginning and 2.2 GB in the end (delta: 13.8 MB). Peak memory consumption was 13.8 MB. Max. memory is 7.1 GB. * RCFGBuilder took 6707.95 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: 271.5 MB). Peak memory consumption was 271.5 MB. Max. memory is 7.1 GB. * TraceAbstraction took 206706.38 ms. Allocated memory was 2.3 GB in the beginning and 4.9 GB in the end (delta: 2.6 GB). Free memory was 1.9 GB in the beginning and 1.8 GB in the end (delta: 101.5 MB). Peak memory consumption was 2.7 GB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResultAtElement [Line: 133]: Timeout (TraceAbstraction) Unable to prove that call of __VERIFIER_error() unreachable (line 133). Cancelled while BasicCegarLoop was constructing difference of abstraction (28166states) and FLOYD_HOARE automaton (currently 16 states, 10 states before enhancement),while ReachableStatesComputation was computing reachable states (7221 states constructedinput type IntersectNwa). - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 410 locations, 1 error locations. TIMEOUT Result, 206.6s OverallTime, 12 OverallIterations, 7 TraceHistogramMax, 181.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 2412 SDtfs, 26974 SDslu, 1882 SDs, 0 SdLazy, 35966 SolverSat, 5665 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 76.8s Time, PredicateUnifierStatistics: 10 DeclaredPredicates, 2059 GetRequests, 1798 SyntacticMatches, 94 SemanticMatches, 167 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1251 ImplicationChecksByTransitivity, 7.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=28166occurred in iteration=11, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 5.4s AbstIntTime, 5 AbstIntIterations, 5 AbstIntStrong, 0.9978247904112766 AbsIntWeakeningRatio, 0.07327141382868937 AbsIntAvgWeakeningVarsNumRemoved, 17.115583075335397 AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 3.2s AutomataMinimizationTime, 11 MinimizatonAttempts, 809 StatesRemovedByMinimization, 10 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.1s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 5.0s InterpolantComputationTime, 3123 NumberOfCodeBlocks, 3123 NumberOfCodeBlocksAsserted, 12 NumberOfCheckSat, 3111 ConstructedInterpolants, 0 QuantifiedInterpolants, 7794845 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 12 InterpolantComputations, 7 PerfectInterpolantSequences, 1991/2613 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Completed graceful shutdown