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/Problem01_label55_true-unreach-call_false-termination.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-63daa26 [2018-11-12 17:10:55,020 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-12 17:10:55,026 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-12 17:10:55,041 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-12 17:10:55,042 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-12 17:10:55,043 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-12 17:10:55,047 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-12 17:10:55,049 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-12 17:10:55,053 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-12 17:10:55,054 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-12 17:10:55,057 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-12 17:10:55,058 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-12 17:10:55,059 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-12 17:10:55,060 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-12 17:10:55,061 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-12 17:10:55,062 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-12 17:10:55,071 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-12 17:10:55,073 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-12 17:10:55,078 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-12 17:10:55,082 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-12 17:10:55,083 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-12 17:10:55,088 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-12 17:10:55,091 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-12 17:10:55,092 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-12 17:10:55,092 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-12 17:10:55,093 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-12 17:10:55,094 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-12 17:10:55,095 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-12 17:10:55,096 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-12 17:10:55,097 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-12 17:10:55,097 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-12 17:10:55,098 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-12 17:10:55,098 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-12 17:10:55,098 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-12 17:10:55,099 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-12 17:10:55,099 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-12 17:10:55,100 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 [2018-11-12 17:10:55,121 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-12 17:10:55,121 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-12 17:10:55,122 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-12 17:10:55,123 INFO L133 SettingsManager]: * User list type=DISABLED [2018-11-12 17:10:55,123 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-11-12 17:10:55,123 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-11-12 17:10:55,123 INFO L133 SettingsManager]: * Maximum recursion depth of evaluation operations=6 [2018-11-12 17:10:55,123 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-11-12 17:10:55,124 INFO L133 SettingsManager]: * Octagon Domain=false [2018-11-12 17:10:55,124 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-11-12 17:10:55,124 INFO L133 SettingsManager]: * Log string format=TERM [2018-11-12 17:10:55,124 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-11-12 17:10:55,124 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-11-12 17:10:55,125 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-12 17:10:55,125 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-12 17:10:55,125 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-12 17:10:55,126 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-12 17:10:55,126 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-12 17:10:55,126 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-12 17:10:55,126 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-12 17:10:55,126 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-12 17:10:55,127 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-12 17:10:55,127 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-12 17:10:55,127 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-12 17:10:55,127 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-12 17:10:55,128 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-12 17:10:55,128 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-12 17:10:55,128 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-12 17:10:55,128 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-12 17:10:55,128 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-11-12 17:10:55,129 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-12 17:10:55,129 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-11-12 17:10:55,129 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-11-12 17:10:55,129 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-11-12 17:10:55,129 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-11-12 17:10:55,177 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-12 17:10:55,191 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-12 17:10:55,195 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-12 17:10:55,196 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-12 17:10:55,197 INFO L276 PluginConnector]: CDTParser initialized [2018-11-12 17:10:55,197 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem01_label55_true-unreach-call_false-termination.c [2018-11-12 17:10:55,258 INFO L218 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/dbc359e23/1380bf43ca774eb4901b00adc22648d3/FLAG7a38bc419 [2018-11-12 17:10:55,897 INFO L298 CDTParser]: Found 1 translation units. [2018-11-12 17:10:55,898 INFO L158 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem01_label55_true-unreach-call_false-termination.c [2018-11-12 17:10:55,910 INFO L346 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/dbc359e23/1380bf43ca774eb4901b00adc22648d3/FLAG7a38bc419 [2018-11-12 17:10:55,927 INFO L354 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/dbc359e23/1380bf43ca774eb4901b00adc22648d3 [2018-11-12 17:10:55,936 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-12 17:10:55,938 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-11-12 17:10:55,939 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-12 17:10:55,939 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-12 17:10:55,943 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-12 17:10:55,944 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 05:10:55" (1/1) ... [2018-11-12 17:10:55,948 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@665e3473 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 05:10:55, skipping insertion in model container [2018-11-12 17:10:55,948 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 05:10:55" (1/1) ... [2018-11-12 17:10:55,959 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-12 17:10:56,015 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-11-12 17:10:56,508 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-12 17:10:56,514 INFO L189 MainTranslator]: Completed pre-run [2018-11-12 17:10:56,651 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-12 17:10:56,673 INFO L193 MainTranslator]: Completed translation [2018-11-12 17:10:56,673 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 05:10:56 WrapperNode [2018-11-12 17:10:56,674 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-12 17:10:56,675 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-12 17:10:56,675 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-12 17:10:56,675 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-12 17:10:56,689 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 05:10:56" (1/1) ... [2018-11-12 17:10:56,798 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 05:10:56" (1/1) ... [2018-11-12 17:10:56,806 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-12 17:10:56,806 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-12 17:10:56,807 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-12 17:10:56,807 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-12 17:10:56,814 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 05:10:56" (1/1) ... [2018-11-12 17:10:56,815 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 05:10:56" (1/1) ... [2018-11-12 17:10:56,819 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 05:10:56" (1/1) ... [2018-11-12 17:10:56,820 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 05:10:56" (1/1) ... [2018-11-12 17:10:56,864 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 05:10:56" (1/1) ... [2018-11-12 17:10:56,890 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 05:10:56" (1/1) ... [2018-11-12 17:10:56,903 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 05:10:56" (1/1) ... [2018-11-12 17:10:56,913 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-12 17:10:56,913 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-12 17:10:56,913 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-12 17:10:56,914 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-12 17:10:56,915 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 05:10:56" (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 [2018-11-12 17:10:56,987 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2018-11-12 17:10:56,987 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-12 17:10:56,988 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-12 17:10:56,988 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2018-11-12 17:10:56,988 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2018-11-12 17:10:56,988 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-12 17:10:56,989 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-12 17:10:56,989 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-12 17:10:56,989 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-12 17:10:59,955 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-12 17:10:59,956 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 05:10:59 BoogieIcfgContainer [2018-11-12 17:10:59,956 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-12 17:10:59,957 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-12 17:10:59,957 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-12 17:10:59,961 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-12 17:10:59,961 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.11 05:10:55" (1/3) ... [2018-11-12 17:10:59,962 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@28c19270 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 05:10:59, skipping insertion in model container [2018-11-12 17:10:59,962 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 05:10:56" (2/3) ... [2018-11-12 17:10:59,963 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@28c19270 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 05:10:59, skipping insertion in model container [2018-11-12 17:10:59,963 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 05:10:59" (3/3) ... [2018-11-12 17:10:59,965 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem01_label55_true-unreach-call_false-termination.c [2018-11-12 17:10:59,975 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-12 17:10:59,985 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-11-12 17:11:00,004 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-11-12 17:11:00,047 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-12 17:11:00,047 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-12 17:11:00,047 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-12 17:11:00,047 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-12 17:11:00,047 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-12 17:11:00,048 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-12 17:11:00,048 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-12 17:11:00,048 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-12 17:11:00,075 INFO L276 IsEmpty]: Start isEmpty. Operand 208 states. [2018-11-12 17:11:00,089 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2018-11-12 17:11:00,089 INFO L367 BasicCegarLoop]: Found error trace [2018-11-12 17:11:00,090 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-12 17:11:00,093 INFO L423 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-12 17:11:00,098 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-12 17:11:00,098 INFO L82 PathProgramCache]: Analyzing trace with hash 240629952, now seen corresponding path program 1 times [2018-11-12 17:11:00,100 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-12 17:11:00,150 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-12 17:11:00,151 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-12 17:11:00,151 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-12 17:11:00,151 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-12 17:11:00,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-12 17:11:00,741 WARN L179 SmtUtils]: Spent 129.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 4 [2018-11-12 17:11:00,898 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-12 17:11:00,901 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-12 17:11:00,902 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-11-12 17:11:00,902 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-12 17:11:00,910 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-11-12 17:11:00,925 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-12 17:11:00,926 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-12 17:11:00,929 INFO L87 Difference]: Start difference. First operand 208 states. Second operand 3 states. [2018-11-12 17:11:02,429 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-12 17:11:02,430 INFO L93 Difference]: Finished difference Result 550 states and 941 transitions. [2018-11-12 17:11:02,431 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-12 17:11:02,433 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 118 [2018-11-12 17:11:02,434 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-12 17:11:02,452 INFO L225 Difference]: With dead ends: 550 [2018-11-12 17:11:02,452 INFO L226 Difference]: Without dead ends: 340 [2018-11-12 17:11:02,459 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 [2018-11-12 17:11:02,478 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 340 states. [2018-11-12 17:11:02,530 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 340 to 340. [2018-11-12 17:11:02,532 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 340 states. [2018-11-12 17:11:02,535 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 340 states to 340 states and 569 transitions. [2018-11-12 17:11:02,537 INFO L78 Accepts]: Start accepts. Automaton has 340 states and 569 transitions. Word has length 118 [2018-11-12 17:11:02,538 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-12 17:11:02,538 INFO L480 AbstractCegarLoop]: Abstraction has 340 states and 569 transitions. [2018-11-12 17:11:02,538 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-11-12 17:11:02,539 INFO L276 IsEmpty]: Start isEmpty. Operand 340 states and 569 transitions. [2018-11-12 17:11:02,545 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 129 [2018-11-12 17:11:02,545 INFO L367 BasicCegarLoop]: Found error trace [2018-11-12 17:11:02,546 INFO L375 BasicCegarLoop]: trace histogram [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] [2018-11-12 17:11:02,546 INFO L423 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-12 17:11:02,546 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-12 17:11:02,547 INFO L82 PathProgramCache]: Analyzing trace with hash -617422281, now seen corresponding path program 1 times [2018-11-12 17:11:02,547 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-12 17:11:02,548 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-12 17:11:02,549 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-12 17:11:02,549 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-12 17:11:02,549 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-12 17:11:02,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-12 17:11:02,732 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-12 17:11:02,733 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-12 17:11:02,733 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-11-12 17:11:02,733 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-12 17:11:02,736 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-11-12 17:11:02,737 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-11-12 17:11:02,737 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-11-12 17:11:02,737 INFO L87 Difference]: Start difference. First operand 340 states and 569 transitions. Second operand 5 states. [2018-11-12 17:11:04,534 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-12 17:11:04,535 INFO L93 Difference]: Finished difference Result 1079 states and 1888 transitions. [2018-11-12 17:11:04,538 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-11-12 17:11:04,538 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 128 [2018-11-12 17:11:04,539 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-12 17:11:04,555 INFO L225 Difference]: With dead ends: 1079 [2018-11-12 17:11:04,556 INFO L226 Difference]: Without dead ends: 745 [2018-11-12 17:11:04,565 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2018-11-12 17:11:04,566 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 745 states. [2018-11-12 17:11:04,618 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 745 to 733. [2018-11-12 17:11:04,618 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 733 states. [2018-11-12 17:11:04,624 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 733 states to 733 states and 1163 transitions. [2018-11-12 17:11:04,624 INFO L78 Accepts]: Start accepts. Automaton has 733 states and 1163 transitions. Word has length 128 [2018-11-12 17:11:04,624 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-12 17:11:04,625 INFO L480 AbstractCegarLoop]: Abstraction has 733 states and 1163 transitions. [2018-11-12 17:11:04,625 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-11-12 17:11:04,625 INFO L276 IsEmpty]: Start isEmpty. Operand 733 states and 1163 transitions. [2018-11-12 17:11:04,636 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 139 [2018-11-12 17:11:04,636 INFO L367 BasicCegarLoop]: Found error trace [2018-11-12 17:11:04,639 INFO L375 BasicCegarLoop]: trace histogram [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] [2018-11-12 17:11:04,639 INFO L423 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-12 17:11:04,639 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-12 17:11:04,640 INFO L82 PathProgramCache]: Analyzing trace with hash 11496099, now seen corresponding path program 1 times [2018-11-12 17:11:04,640 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-12 17:11:04,641 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-12 17:11:04,641 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-12 17:11:04,642 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-12 17:11:04,642 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-12 17:11:04,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-12 17:11:05,135 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 0 proven. 17 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-12 17:11:05,135 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-12 17:11:05,136 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-12 17:11:05,137 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 139 with the following transitions: [2018-11-12 17:11:05,139 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [6], [10], [14], [18], [22], [26], [30], [34], [38], [42], [46], [49], [50], [54], [58], [62], [66], [70], [74], [78], [82], [86], [90], [94], [98], [102], [106], [110], [114], [118], [122], [126], [130], [134], [138], [142], [146], [150], [154], [158], [162], [166], [170], [174], [178], [182], [186], [190], [194], [198], [202], [206], [210], [214], [218], [222], [226], [230], [234], [238], [242], [246], [250], [254], [258], [262], [266], [273], [281], [289], [297], [305], [313], [321], [329], [337], [345], [353], [361], [369], [377], [385], [393], [401], [409], [417], [425], [433], [441], [449], [457], [465], [473], [481], [489], [497], [505], [513], [521], [529], [537], [545], [553], [561], [569], [577], [581], [583], [757], [761], [765], [771], [775], [777], [782], [783], [784], [786], [787] [2018-11-12 17:11:05,190 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, IntervalDomain] [2018-11-12 17:11:05,191 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-12 17:11:06,014 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-11-12 17:11:06,016 INFO L272 AbstractInterpreter]: Visited 68 different actions 68 times. Never merged. Never widened. Performed 890 root evaluator evaluations with a maximum evaluation depth of 6. Performed 890 inverse root evaluator evaluations with a maximum inverse evaluation depth of 6. Never found a fixpoint. Largest state had 42 variables. [2018-11-12 17:11:06,060 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-12 17:11:06,060 INFO L398 sIntCurrentIteration]: Generating AbsInt predicates [2018-11-12 17:11:06,561 INFO L227 lantSequenceWeakener]: Weakened 82 states. On average, predicates are now at 79.49% of their original sizes. [2018-11-12 17:11:06,562 INFO L413 sIntCurrentIteration]: Unifying AI predicates [2018-11-12 17:11:07,808 INFO L415 sIntCurrentIteration]: We unified 137 AI predicates to 137 [2018-11-12 17:11:07,810 INFO L424 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-11-12 17:11:07,811 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-11-12 17:11:07,812 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [12] imperfect sequences [7] total 17 [2018-11-12 17:11:07,812 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-12 17:11:07,813 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2018-11-12 17:11:07,813 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2018-11-12 17:11:07,813 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=86, Unknown=0, NotChecked=0, Total=132 [2018-11-12 17:11:07,813 INFO L87 Difference]: Start difference. First operand 733 states and 1163 transitions. Second operand 12 states. [2018-11-12 17:11:18,651 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-12 17:11:18,651 INFO L93 Difference]: Finished difference Result 1521 states and 2423 transitions. [2018-11-12 17:11:18,651 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2018-11-12 17:11:18,651 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 138 [2018-11-12 17:11:18,652 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-12 17:11:18,656 INFO L225 Difference]: With dead ends: 1521 [2018-11-12 17:11:18,657 INFO L226 Difference]: Without dead ends: 794 [2018-11-12 17:11:18,659 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 143 GetRequests, 127 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=106, Invalid=200, Unknown=0, NotChecked=0, Total=306 [2018-11-12 17:11:18,660 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 794 states. [2018-11-12 17:11:18,690 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 794 to 794. [2018-11-12 17:11:18,690 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 794 states. [2018-11-12 17:11:18,694 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 794 states to 794 states and 1232 transitions. [2018-11-12 17:11:18,695 INFO L78 Accepts]: Start accepts. Automaton has 794 states and 1232 transitions. Word has length 138 [2018-11-12 17:11:18,695 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-12 17:11:18,695 INFO L480 AbstractCegarLoop]: Abstraction has 794 states and 1232 transitions. [2018-11-12 17:11:18,696 INFO L481 AbstractCegarLoop]: Interpolant automaton has 12 states. [2018-11-12 17:11:18,696 INFO L276 IsEmpty]: Start isEmpty. Operand 794 states and 1232 transitions. [2018-11-12 17:11:18,699 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 141 [2018-11-12 17:11:18,700 INFO L367 BasicCegarLoop]: Found error trace [2018-11-12 17:11:18,700 INFO L375 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-12 17:11:18,701 INFO L423 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-12 17:11:18,701 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-12 17:11:18,701 INFO L82 PathProgramCache]: Analyzing trace with hash 1720247914, now seen corresponding path program 1 times [2018-11-12 17:11:18,701 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-12 17:11:18,702 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-12 17:11:18,703 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-12 17:11:18,703 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-12 17:11:18,703 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-12 17:11:18,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-12 17:11:19,148 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 24 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-12 17:11:19,148 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-12 17:11:19,149 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-12 17:11:19,149 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 141 with the following transitions: [2018-11-12 17:11:19,149 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [6], [9], [10], [14], [17], [18], [22], [26], [30], [34], [38], [42], [46], [50], [54], [58], [62], [66], [70], [74], [78], [82], [86], [90], [94], [98], [102], [106], [110], [114], [118], [122], [126], [130], [134], [138], [142], [146], [150], [154], [158], [162], [166], [170], [174], [178], [182], [186], [190], [194], [198], [202], [206], [210], [214], [218], [222], [226], [230], [234], [238], [242], [246], [250], [254], [258], [262], [266], [273], [281], [289], [297], [305], [313], [321], [329], [337], [345], [353], [361], [369], [377], [385], [393], [401], [409], [417], [425], [433], [441], [449], [457], [465], [473], [481], [489], [497], [505], [513], [521], [529], [537], [545], [553], [561], [569], [577], [581], [583], [757], [761], [765], [771], [775], [777], [782], [783], [784], [786], [787] [2018-11-12 17:11:19,158 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, IntervalDomain] [2018-11-12 17:11:19,158 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-12 17:11:19,840 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-11-12 17:11:19,840 INFO L272 AbstractInterpreter]: Visited 122 different actions 187 times. Merged at 4 different actions 4 times. Never widened. Performed 2529 root evaluator evaluations with a maximum evaluation depth of 6. Performed 2529 inverse root evaluator evaluations with a maximum inverse evaluation depth of 6. Found 1 fixpoints after 1 different actions. Largest state had 42 variables. [2018-11-12 17:11:19,880 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-12 17:11:19,881 INFO L398 sIntCurrentIteration]: Generating AbsInt predicates [2018-11-12 17:11:20,301 INFO L227 lantSequenceWeakener]: Weakened 137 states. On average, predicates are now at 80.49% of their original sizes. [2018-11-12 17:11:20,302 INFO L413 sIntCurrentIteration]: Unifying AI predicates [2018-11-12 17:11:21,267 INFO L415 sIntCurrentIteration]: We unified 139 AI predicates to 139 [2018-11-12 17:11:21,269 INFO L424 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-11-12 17:11:21,269 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-11-12 17:11:21,270 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [11] imperfect sequences [6] total 15 [2018-11-12 17:11:21,270 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-12 17:11:21,270 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2018-11-12 17:11:21,271 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2018-11-12 17:11:21,271 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=79, Unknown=0, NotChecked=0, Total=110 [2018-11-12 17:11:21,272 INFO L87 Difference]: Start difference. First operand 794 states and 1232 transitions. Second operand 11 states. [2018-11-12 17:11:32,289 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-12 17:11:32,289 INFO L93 Difference]: Finished difference Result 2256 states and 3581 transitions. [2018-11-12 17:11:32,289 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2018-11-12 17:11:32,289 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 140 [2018-11-12 17:11:32,290 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-12 17:11:32,302 INFO L225 Difference]: With dead ends: 2256 [2018-11-12 17:11:32,302 INFO L226 Difference]: Without dead ends: 1529 [2018-11-12 17:11:32,306 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 150 GetRequests, 130 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 71 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=113, Invalid=349, Unknown=0, NotChecked=0, Total=462 [2018-11-12 17:11:32,308 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1529 states. [2018-11-12 17:11:32,361 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1529 to 1504. [2018-11-12 17:11:32,361 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1504 states. [2018-11-12 17:11:32,367 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1504 states to 1504 states and 2018 transitions. [2018-11-12 17:11:32,368 INFO L78 Accepts]: Start accepts. Automaton has 1504 states and 2018 transitions. Word has length 140 [2018-11-12 17:11:32,368 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-12 17:11:32,368 INFO L480 AbstractCegarLoop]: Abstraction has 1504 states and 2018 transitions. [2018-11-12 17:11:32,368 INFO L481 AbstractCegarLoop]: Interpolant automaton has 11 states. [2018-11-12 17:11:32,368 INFO L276 IsEmpty]: Start isEmpty. Operand 1504 states and 2018 transitions. [2018-11-12 17:11:32,373 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 148 [2018-11-12 17:11:32,374 INFO L367 BasicCegarLoop]: Found error trace [2018-11-12 17:11:32,374 INFO L375 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-12 17:11:32,374 INFO L423 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-12 17:11:32,375 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-12 17:11:32,375 INFO L82 PathProgramCache]: Analyzing trace with hash 1488530374, now seen corresponding path program 1 times [2018-11-12 17:11:32,375 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-12 17:11:32,376 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-12 17:11:32,376 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-12 17:11:32,376 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-12 17:11:32,377 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-12 17:11:32,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-12 17:11:32,636 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 30 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-12 17:11:32,637 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-12 17:11:32,637 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-12 17:11:32,637 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 148 with the following transitions: [2018-11-12 17:11:32,638 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [5], [6], [10], [14], [18], [22], [26], [30], [34], [38], [42], [46], [49], [50], [54], [58], [62], [66], [70], [74], [78], [82], [86], [90], [94], [98], [102], [106], [110], [114], [118], [122], [126], [130], [134], [138], [142], [146], [150], [154], [158], [162], [166], [170], [174], [178], [182], [186], [190], [194], [198], [202], [206], [210], [214], [218], [222], [226], [230], [234], [238], [242], [246], [250], [254], [258], [262], [266], [273], [281], [289], [297], [305], [313], [321], [329], [337], [345], [353], [361], [369], [377], [385], [393], [401], [409], [417], [425], [433], [441], [449], [457], [465], [473], [481], [489], [497], [505], [513], [521], [529], [537], [545], [553], [561], [569], [577], [581], [583], [757], [761], [765], [771], [775], [777], [782], [783], [784], [786], [787] [2018-11-12 17:11:32,642 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, IntervalDomain] [2018-11-12 17:11:32,642 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-12 17:11:33,269 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-11-12 17:11:33,270 INFO L272 AbstractInterpreter]: Visited 122 different actions 190 times. Merged at 5 different actions 7 times. Never widened. Performed 3450 root evaluator evaluations with a maximum evaluation depth of 6. Performed 3450 inverse root evaluator evaluations with a maximum inverse evaluation depth of 6. Found 1 fixpoints after 1 different actions. Largest state had 42 variables. [2018-11-12 17:11:33,276 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-12 17:11:33,276 INFO L398 sIntCurrentIteration]: Generating AbsInt predicates [2018-11-12 17:11:33,758 INFO L227 lantSequenceWeakener]: Weakened 116 states. On average, predicates are now at 80.86% of their original sizes. [2018-11-12 17:11:33,758 INFO L413 sIntCurrentIteration]: Unifying AI predicates [2018-11-12 17:11:34,398 INFO L415 sIntCurrentIteration]: We unified 146 AI predicates to 146 [2018-11-12 17:11:34,398 INFO L424 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-11-12 17:11:34,399 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-11-12 17:11:34,399 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [20] imperfect sequences [7] total 25 [2018-11-12 17:11:34,399 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-12 17:11:34,399 INFO L459 AbstractCegarLoop]: Interpolant automaton has 20 states [2018-11-12 17:11:34,400 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2018-11-12 17:11:34,400 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=81, Invalid=299, Unknown=0, NotChecked=0, Total=380 [2018-11-12 17:11:34,401 INFO L87 Difference]: Start difference. First operand 1504 states and 2018 transitions. Second operand 20 states. [2018-11-12 17:11:54,055 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-12 17:11:54,055 INFO L93 Difference]: Finished difference Result 3226 states and 4396 transitions. [2018-11-12 17:11:54,056 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2018-11-12 17:11:54,056 INFO L78 Accepts]: Start accepts. Automaton has 20 states. Word has length 147 [2018-11-12 17:11:54,056 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-12 17:11:54,065 INFO L225 Difference]: With dead ends: 3226 [2018-11-12 17:11:54,065 INFO L226 Difference]: Without dead ends: 1789 [2018-11-12 17:11:54,073 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 163 GetRequests, 128 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 284 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=253, Invalid=1079, Unknown=0, NotChecked=0, Total=1332 [2018-11-12 17:11:54,074 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1789 states. [2018-11-12 17:11:54,117 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1789 to 1642. [2018-11-12 17:11:54,117 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1642 states. [2018-11-12 17:11:54,123 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1642 states to 1642 states and 2164 transitions. [2018-11-12 17:11:54,123 INFO L78 Accepts]: Start accepts. Automaton has 1642 states and 2164 transitions. Word has length 147 [2018-11-12 17:11:54,124 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-12 17:11:54,124 INFO L480 AbstractCegarLoop]: Abstraction has 1642 states and 2164 transitions. [2018-11-12 17:11:54,124 INFO L481 AbstractCegarLoop]: Interpolant automaton has 20 states. [2018-11-12 17:11:54,124 INFO L276 IsEmpty]: Start isEmpty. Operand 1642 states and 2164 transitions. [2018-11-12 17:11:54,130 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 160 [2018-11-12 17:11:54,130 INFO L367 BasicCegarLoop]: Found error trace [2018-11-12 17:11:54,130 INFO L375 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 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] [2018-11-12 17:11:54,131 INFO L423 AbstractCegarLoop]: === Iteration 6 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-12 17:11:54,131 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-12 17:11:54,131 INFO L82 PathProgramCache]: Analyzing trace with hash -1640342349, now seen corresponding path program 1 times [2018-11-12 17:11:54,131 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-12 17:11:54,132 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-12 17:11:54,132 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-12 17:11:54,132 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-12 17:11:54,133 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-12 17:11:54,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-12 17:11:54,250 INFO L134 CoverageAnalysis]: Checked inductivity of 62 backedges. 44 proven. 8 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2018-11-12 17:11:54,251 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-12 17:11:54,251 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-12 17:11:54,251 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 160 with the following transitions: [2018-11-12 17:11:54,252 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [5], [6], [10], [14], [17], [18], [22], [26], [30], [34], [38], [42], [46], [49], [50], [54], [58], [62], [66], [70], [74], [78], [82], [86], [90], [94], [98], [102], [106], [110], [114], [118], [122], [126], [130], [134], [138], [142], [146], [150], [154], [158], [162], [166], [170], [174], [178], [182], [186], [190], [194], [198], [202], [206], [210], [214], [218], [222], [226], [230], [234], [238], [242], [246], [250], [254], [258], [262], [266], [273], [281], [289], [297], [305], [313], [321], [329], [337], [345], [353], [361], [369], [377], [385], [393], [401], [409], [417], [425], [433], [441], [449], [457], [465], [473], [481], [489], [497], [505], [513], [521], [529], [537], [545], [553], [561], [569], [577], [581], [583], [757], [761], [765], [771], [775], [777], [782], [783], [784], [786], [787] [2018-11-12 17:11:54,256 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, IntervalDomain] [2018-11-12 17:11:54,256 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-12 17:11:55,865 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-11-12 17:11:55,866 INFO L272 AbstractInterpreter]: Visited 124 different actions 564 times. Merged at 8 different actions 41 times. Widened at 1 different actions 1 times. Performed 9172 root evaluator evaluations with a maximum evaluation depth of 6. Performed 9172 inverse root evaluator evaluations with a maximum inverse evaluation depth of 6. Found 9 fixpoints after 3 different actions. Largest state had 42 variables. [2018-11-12 17:11:55,873 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-12 17:11:55,874 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2018-11-12 17:11:55,874 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-12 17:11:55,874 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-11-12 17:11:55,885 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-12 17:11:55,886 INFO L286 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-11-12 17:11:55,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-12 17:11:56,006 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-12 17:11:56,245 INFO L134 CoverageAnalysis]: Checked inductivity of 62 backedges. 42 proven. 2 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2018-11-12 17:11:56,245 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-11-12 17:11:56,437 INFO L134 CoverageAnalysis]: Checked inductivity of 62 backedges. 44 proven. 8 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2018-11-12 17:11:56,458 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2018-11-12 17:11:56,458 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 11 [2018-11-12 17:11:56,458 INFO L249 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-11-12 17:11:56,459 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2018-11-12 17:11:56,459 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2018-11-12 17:11:56,459 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=83, Unknown=0, NotChecked=0, Total=110 [2018-11-12 17:11:56,460 INFO L87 Difference]: Start difference. First operand 1642 states and 2164 transitions. Second operand 8 states. [2018-11-12 17:12:00,802 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-12 17:12:00,802 INFO L93 Difference]: Finished difference Result 5411 states and 7866 transitions. [2018-11-12 17:12:00,802 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2018-11-12 17:12:00,803 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 159 [2018-11-12 17:12:00,803 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-12 17:12:00,818 INFO L225 Difference]: With dead ends: 5411 [2018-11-12 17:12:00,819 INFO L226 Difference]: Without dead ends: 2608 [2018-11-12 17:12:00,836 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 364 GetRequests, 334 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 200 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=215, Invalid=777, Unknown=0, NotChecked=0, Total=992 [2018-11-12 17:12:00,840 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2608 states. [2018-11-12 17:12:00,920 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2608 to 2498. [2018-11-12 17:12:00,920 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2498 states. [2018-11-12 17:12:00,930 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2498 states to 2498 states and 3085 transitions. [2018-11-12 17:12:00,930 INFO L78 Accepts]: Start accepts. Automaton has 2498 states and 3085 transitions. Word has length 159 [2018-11-12 17:12:00,931 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-12 17:12:00,931 INFO L480 AbstractCegarLoop]: Abstraction has 2498 states and 3085 transitions. [2018-11-12 17:12:00,931 INFO L481 AbstractCegarLoop]: Interpolant automaton has 8 states. [2018-11-12 17:12:00,931 INFO L276 IsEmpty]: Start isEmpty. Operand 2498 states and 3085 transitions. [2018-11-12 17:12:00,940 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 187 [2018-11-12 17:12:00,940 INFO L367 BasicCegarLoop]: Found error trace [2018-11-12 17:12:00,941 INFO L375 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-12 17:12:00,941 INFO L423 AbstractCegarLoop]: === Iteration 7 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-12 17:12:00,941 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-12 17:12:00,942 INFO L82 PathProgramCache]: Analyzing trace with hash 867493849, now seen corresponding path program 1 times [2018-11-12 17:12:00,942 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-12 17:12:00,943 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-12 17:12:00,943 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-12 17:12:00,943 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-12 17:12:00,943 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-12 17:12:00,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-12 17:12:01,350 WARN L179 SmtUtils]: Spent 167.00 ms on a formula simplification that was a NOOP. DAG size: 13 [2018-11-12 17:12:01,440 INFO L134 CoverageAnalysis]: Checked inductivity of 95 backedges. 78 proven. 9 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2018-11-12 17:12:01,440 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-12 17:12:01,441 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-12 17:12:01,441 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 187 with the following transitions: [2018-11-12 17:12:01,441 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [6], [9], [10], [14], [18], [22], [26], [30], [33], [34], [38], [42], [46], [50], [54], [58], [62], [66], [70], [74], [78], [82], [86], [90], [94], [98], [102], [106], [110], [114], [118], [122], [126], [130], [134], [137], [138], [142], [146], [150], [154], [158], [162], [166], [170], [174], [178], [182], [186], [190], [194], [198], [202], [206], [210], [214], [218], [222], [226], [230], [234], [238], [242], [246], [250], [254], [258], [262], [266], [273], [281], [289], [297], [305], [313], [321], [329], [337], [345], [353], [361], [369], [377], [385], [393], [401], [409], [417], [425], [433], [441], [449], [457], [465], [473], [481], [489], [497], [505], [513], [521], [529], [537], [545], [553], [561], [569], [577], [581], [583], [757], [761], [765], [771], [775], [777], [782], [783], [784], [786], [787] [2018-11-12 17:12:01,451 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, IntervalDomain] [2018-11-12 17:12:01,451 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-12 17:12:01,870 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-11-12 17:12:01,870 INFO L272 AbstractInterpreter]: Visited 123 different actions 192 times. Merged at 5 different actions 7 times. Never widened. Performed 3428 root evaluator evaluations with a maximum evaluation depth of 6. Performed 3428 inverse root evaluator evaluations with a maximum inverse evaluation depth of 6. Found 1 fixpoints after 1 different actions. Largest state had 42 variables. [2018-11-12 17:12:01,877 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-12 17:12:01,877 INFO L398 sIntCurrentIteration]: Generating AbsInt predicates [2018-11-12 17:12:02,436 INFO L227 lantSequenceWeakener]: Weakened 80 states. On average, predicates are now at 81.25% of their original sizes. [2018-11-12 17:12:02,437 INFO L413 sIntCurrentIteration]: Unifying AI predicates [2018-11-12 17:12:03,343 INFO L415 sIntCurrentIteration]: We unified 185 AI predicates to 185 [2018-11-12 17:12:03,343 INFO L424 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-11-12 17:12:03,343 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-11-12 17:12:03,344 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [21] imperfect sequences [6] total 25 [2018-11-12 17:12:03,344 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-12 17:12:03,345 INFO L459 AbstractCegarLoop]: Interpolant automaton has 21 states [2018-11-12 17:12:03,345 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2018-11-12 17:12:03,345 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=108, Invalid=312, Unknown=0, NotChecked=0, Total=420 [2018-11-12 17:12:03,346 INFO L87 Difference]: Start difference. First operand 2498 states and 3085 transitions. Second operand 21 states. [2018-11-12 17:12:17,662 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-12 17:12:17,663 INFO L93 Difference]: Finished difference Result 5213 states and 6485 transitions. [2018-11-12 17:12:17,663 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2018-11-12 17:12:17,663 INFO L78 Accepts]: Start accepts. Automaton has 21 states. Word has length 186 [2018-11-12 17:12:17,664 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-12 17:12:17,678 INFO L225 Difference]: With dead ends: 5213 [2018-11-12 17:12:17,678 INFO L226 Difference]: Without dead ends: 2920 [2018-11-12 17:12:17,687 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 194 GetRequests, 160 SyntacticMatches, 6 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 218 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=200, Invalid=670, Unknown=0, NotChecked=0, Total=870 [2018-11-12 17:12:17,689 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2920 states. [2018-11-12 17:12:17,751 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2920 to 2772. [2018-11-12 17:12:17,752 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2772 states. [2018-11-12 17:12:17,758 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2772 states to 2772 states and 3375 transitions. [2018-11-12 17:12:17,759 INFO L78 Accepts]: Start accepts. Automaton has 2772 states and 3375 transitions. Word has length 186 [2018-11-12 17:12:17,759 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-12 17:12:17,759 INFO L480 AbstractCegarLoop]: Abstraction has 2772 states and 3375 transitions. [2018-11-12 17:12:17,759 INFO L481 AbstractCegarLoop]: Interpolant automaton has 21 states. [2018-11-12 17:12:17,759 INFO L276 IsEmpty]: Start isEmpty. Operand 2772 states and 3375 transitions. [2018-11-12 17:12:17,768 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 196 [2018-11-12 17:12:17,768 INFO L367 BasicCegarLoop]: Found error trace [2018-11-12 17:12:17,768 INFO L375 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 4, 4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-12 17:12:17,769 INFO L423 AbstractCegarLoop]: === Iteration 8 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-12 17:12:17,769 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-12 17:12:17,769 INFO L82 PathProgramCache]: Analyzing trace with hash -1448672338, now seen corresponding path program 1 times [2018-11-12 17:12:17,769 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-12 17:12:17,770 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-12 17:12:17,770 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-12 17:12:17,770 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-12 17:12:17,771 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-12 17:12:17,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-12 17:12:18,011 INFO L134 CoverageAnalysis]: Checked inductivity of 128 backedges. 76 proven. 32 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2018-11-12 17:12:18,012 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-12 17:12:18,012 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-12 17:12:18,012 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 196 with the following transitions: [2018-11-12 17:12:18,012 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [5], [6], [9], [10], [14], [18], [22], [26], [30], [33], [34], [38], [42], [46], [50], [54], [58], [62], [66], [70], [74], [78], [82], [86], [90], [94], [98], [102], [106], [110], [114], [118], [122], [126], [130], [134], [137], [138], [142], [146], [150], [154], [158], [162], [166], [170], [174], [178], [182], [186], [190], [194], [198], [202], [206], [210], [214], [218], [222], [226], [230], [234], [238], [242], [246], [250], [254], [258], [262], [266], [273], [281], [289], [297], [305], [313], [321], [329], [337], [345], [353], [361], [369], [377], [385], [393], [401], [409], [417], [425], [433], [441], [449], [457], [465], [473], [481], [489], [497], [505], [513], [521], [529], [537], [545], [553], [561], [569], [577], [581], [583], [757], [761], [765], [771], [775], [777], [782], [783], [784], [786], [787] [2018-11-12 17:12:18,015 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, IntervalDomain] [2018-11-12 17:12:18,015 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-12 17:12:19,493 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-11-12 17:12:19,493 INFO L272 AbstractInterpreter]: Visited 125 different actions 576 times. Merged at 9 different actions 48 times. Widened at 1 different actions 1 times. Performed 9401 root evaluator evaluations with a maximum evaluation depth of 6. Performed 9401 inverse root evaluator evaluations with a maximum inverse evaluation depth of 6. Found 11 fixpoints after 3 different actions. Largest state had 42 variables. [2018-11-12 17:12:19,499 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-12 17:12:19,499 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2018-11-12 17:12:19,499 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-12 17:12:19,499 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-11-12 17:12:19,511 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-12 17:12:19,511 INFO L286 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-11-12 17:12:19,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-12 17:12:19,607 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-12 17:12:19,741 INFO L134 CoverageAnalysis]: Checked inductivity of 128 backedges. 94 proven. 2 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2018-11-12 17:12:19,742 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-11-12 17:12:19,841 INFO L134 CoverageAnalysis]: Checked inductivity of 128 backedges. 82 proven. 14 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2018-11-12 17:12:19,863 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2018-11-12 17:12:19,863 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 5, 5] total 14 [2018-11-12 17:12:19,863 INFO L249 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-11-12 17:12:19,864 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2018-11-12 17:12:19,864 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2018-11-12 17:12:19,864 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=141, Unknown=0, NotChecked=0, Total=182 [2018-11-12 17:12:19,865 INFO L87 Difference]: Start difference. First operand 2772 states and 3375 transitions. Second operand 12 states. [2018-11-12 17:12:25,864 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-12 17:12:25,864 INFO L93 Difference]: Finished difference Result 16565 states and 23273 transitions. [2018-11-12 17:12:25,865 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2018-11-12 17:12:25,865 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 195 [2018-11-12 17:12:25,865 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-12 17:12:25,972 INFO L225 Difference]: With dead ends: 16565 [2018-11-12 17:12:25,973 INFO L226 Difference]: Without dead ends: 13780 [2018-11-12 17:12:26,028 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 473 GetRequests, 423 SyntacticMatches, 1 SemanticMatches, 49 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 695 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=532, Invalid=2018, Unknown=0, NotChecked=0, Total=2550 [2018-11-12 17:12:26,039 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13780 states. [2018-11-12 17:12:26,473 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13780 to 13224. [2018-11-12 17:12:26,474 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13224 states. [2018-11-12 17:12:26,532 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13224 states to 13224 states and 17384 transitions. [2018-11-12 17:12:26,532 INFO L78 Accepts]: Start accepts. Automaton has 13224 states and 17384 transitions. Word has length 195 [2018-11-12 17:12:26,532 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-12 17:12:26,533 INFO L480 AbstractCegarLoop]: Abstraction has 13224 states and 17384 transitions. [2018-11-12 17:12:26,533 INFO L481 AbstractCegarLoop]: Interpolant automaton has 12 states. [2018-11-12 17:12:26,533 INFO L276 IsEmpty]: Start isEmpty. Operand 13224 states and 17384 transitions. [2018-11-12 17:12:26,586 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 226 [2018-11-12 17:12:26,586 INFO L367 BasicCegarLoop]: Found error trace [2018-11-12 17:12:26,586 INFO L375 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2018-11-12 17:12:26,587 INFO L423 AbstractCegarLoop]: === Iteration 9 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-12 17:12:26,587 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-12 17:12:26,587 INFO L82 PathProgramCache]: Analyzing trace with hash -1211800928, now seen corresponding path program 1 times [2018-11-12 17:12:26,587 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-12 17:12:26,588 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-12 17:12:26,588 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-12 17:12:26,588 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-12 17:12:26,588 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-12 17:12:26,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-12 17:12:27,178 WARN L179 SmtUtils]: Spent 197.00 ms on a formula simplification that was a NOOP. DAG size: 15 [2018-11-12 17:12:27,385 INFO L134 CoverageAnalysis]: Checked inductivity of 185 backedges. 119 proven. 52 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2018-11-12 17:12:27,385 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-12 17:12:27,385 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-12 17:12:27,386 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 226 with the following transitions: [2018-11-12 17:12:27,386 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [5], [6], [10], [14], [18], [22], [26], [30], [33], [34], [38], [42], [46], [50], [54], [58], [62], [66], [70], [74], [78], [82], [86], [90], [93], [94], [98], [102], [106], [110], [114], [118], [122], [126], [130], [134], [138], [142], [146], [150], [154], [158], [162], [166], [170], [173], [174], [178], [182], [186], [190], [194], [198], [202], [206], [210], [214], [218], [222], [226], [230], [234], [238], [242], [246], [250], [254], [258], [262], [266], [273], [281], [289], [297], [305], [313], [321], [329], [337], [345], [353], [361], [369], [377], [385], [393], [401], [409], [417], [425], [433], [441], [449], [457], [465], [473], [481], [489], [497], [505], [513], [521], [529], [537], [545], [553], [561], [569], [577], [581], [583], [757], [761], [765], [771], [775], [777], [782], [783], [784], [786], [787] [2018-11-12 17:12:27,388 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, IntervalDomain] [2018-11-12 17:12:27,389 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-12 17:12:28,063 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-11-12 17:12:28,063 INFO L272 AbstractInterpreter]: Visited 124 different actions 314 times. Merged at 7 different actions 14 times. Never widened. Performed 4650 root evaluator evaluations with a maximum evaluation depth of 6. Performed 4650 inverse root evaluator evaluations with a maximum inverse evaluation depth of 6. Found 3 fixpoints after 2 different actions. Largest state had 42 variables. [2018-11-12 17:12:28,069 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-12 17:12:28,069 INFO L398 sIntCurrentIteration]: Generating AbsInt predicates [2018-11-12 17:12:28,384 INFO L227 lantSequenceWeakener]: Weakened 222 states. On average, predicates are now at 80.36% of their original sizes. [2018-11-12 17:12:28,385 INFO L413 sIntCurrentIteration]: Unifying AI predicates [2018-11-12 17:12:28,504 INFO L415 sIntCurrentIteration]: We unified 224 AI predicates to 224 [2018-11-12 17:12:28,504 INFO L424 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-11-12 17:12:28,504 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-11-12 17:12:28,504 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [11] imperfect sequences [6] total 15 [2018-11-12 17:12:28,504 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-12 17:12:28,505 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2018-11-12 17:12:28,505 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2018-11-12 17:12:28,505 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=79, Unknown=0, NotChecked=0, Total=110 [2018-11-12 17:12:28,505 INFO L87 Difference]: Start difference. First operand 13224 states and 17384 transitions. Second operand 11 states. [2018-11-12 17:12:35,118 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-12 17:12:35,119 INFO L93 Difference]: Finished difference Result 26663 states and 35111 transitions. [2018-11-12 17:12:35,119 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2018-11-12 17:12:35,119 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 225 [2018-11-12 17:12:35,119 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-12 17:12:35,188 INFO L225 Difference]: With dead ends: 26663 [2018-11-12 17:12:35,188 INFO L226 Difference]: Without dead ends: 13782 [2018-11-12 17:12:35,236 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 233 GetRequests, 215 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 49 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=98, Invalid=282, Unknown=0, NotChecked=0, Total=380 [2018-11-12 17:12:35,248 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13782 states. [2018-11-12 17:12:35,590 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13782 to 13772. [2018-11-12 17:12:35,590 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13772 states. [2018-11-12 17:12:35,647 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13772 states to 13772 states and 17973 transitions. [2018-11-12 17:12:35,648 INFO L78 Accepts]: Start accepts. Automaton has 13772 states and 17973 transitions. Word has length 225 [2018-11-12 17:12:35,648 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-12 17:12:35,648 INFO L480 AbstractCegarLoop]: Abstraction has 13772 states and 17973 transitions. [2018-11-12 17:12:35,648 INFO L481 AbstractCegarLoop]: Interpolant automaton has 11 states. [2018-11-12 17:12:35,648 INFO L276 IsEmpty]: Start isEmpty. Operand 13772 states and 17973 transitions. [2018-11-12 17:12:35,708 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 242 [2018-11-12 17:12:35,709 INFO L367 BasicCegarLoop]: Found error trace [2018-11-12 17:12:35,709 INFO L375 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 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] [2018-11-12 17:12:35,709 INFO L423 AbstractCegarLoop]: === Iteration 10 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-12 17:12:35,710 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-12 17:12:35,710 INFO L82 PathProgramCache]: Analyzing trace with hash -634639250, now seen corresponding path program 1 times [2018-11-12 17:12:35,710 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-12 17:12:35,711 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-12 17:12:35,711 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-12 17:12:35,711 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-12 17:12:35,711 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-12 17:12:35,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-12 17:12:36,187 INFO L134 CoverageAnalysis]: Checked inductivity of 255 backedges. 174 proven. 52 refuted. 0 times theorem prover too weak. 29 trivial. 0 not checked. [2018-11-12 17:12:36,188 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-12 17:12:36,188 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-12 17:12:36,188 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 242 with the following transitions: [2018-11-12 17:12:36,189 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [6], [10], [14], [18], [22], [26], [30], [33], [34], [38], [42], [46], [50], [54], [58], [62], [66], [70], [74], [78], [82], [86], [90], [93], [94], [98], [102], [105], [106], [110], [114], [118], [122], [126], [130], [134], [137], [138], [142], [146], [150], [154], [158], [162], [166], [170], [174], [178], [182], [186], [190], [194], [198], [202], [206], [210], [214], [218], [222], [226], [230], [234], [238], [242], [246], [250], [254], [258], [262], [266], [273], [281], [289], [297], [305], [313], [321], [329], [337], [345], [353], [361], [369], [377], [385], [393], [401], [409], [417], [425], [433], [441], [449], [457], [465], [473], [481], [489], [497], [505], [513], [521], [529], [537], [545], [553], [561], [569], [577], [581], [583], [757], [761], [765], [771], [775], [777], [782], [783], [784], [786], [787] [2018-11-12 17:12:36,191 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, IntervalDomain] [2018-11-12 17:12:36,191 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-12 17:12:37,156 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-11-12 17:12:37,156 INFO L272 AbstractInterpreter]: Visited 125 different actions 448 times. Merged at 9 different actions 34 times. Never widened. Performed 7052 root evaluator evaluations with a maximum evaluation depth of 6. Performed 7052 inverse root evaluator evaluations with a maximum inverse evaluation depth of 6. Found 7 fixpoints after 3 different actions. Largest state had 42 variables. [2018-11-12 17:12:37,166 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-12 17:12:37,166 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2018-11-12 17:12:37,166 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-12 17:12:37,166 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-11-12 17:12:37,176 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-12 17:12:37,176 INFO L286 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-11-12 17:12:37,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-12 17:12:37,277 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-12 17:12:37,401 INFO L134 CoverageAnalysis]: Checked inductivity of 255 backedges. 120 proven. 0 refuted. 0 times theorem prover too weak. 135 trivial. 0 not checked. [2018-11-12 17:12:37,402 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-11-12 17:12:37,505 INFO L134 CoverageAnalysis]: Checked inductivity of 255 backedges. 120 proven. 0 refuted. 0 times theorem prover too weak. 135 trivial. 0 not checked. [2018-11-12 17:12:37,529 INFO L312 seRefinementStrategy]: Constructing automaton from 2 perfect and 1 imperfect interpolant sequences. [2018-11-12 17:12:37,529 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [9] total 10 [2018-11-12 17:12:37,530 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-12 17:12:37,530 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-11-12 17:12:37,530 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-12 17:12:37,531 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2018-11-12 17:12:37,532 INFO L87 Difference]: Start difference. First operand 13772 states and 17973 transitions. Second operand 3 states. [2018-11-12 17:12:38,326 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-12 17:12:38,326 INFO L93 Difference]: Finished difference Result 23003 states and 30127 transitions. [2018-11-12 17:12:38,327 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-12 17:12:38,327 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 241 [2018-11-12 17:12:38,328 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-12 17:12:38,328 INFO L225 Difference]: With dead ends: 23003 [2018-11-12 17:12:38,328 INFO L226 Difference]: Without dead ends: 0 [2018-11-12 17:12:38,405 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 490 GetRequests, 480 SyntacticMatches, 2 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2018-11-12 17:12:38,405 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-11-12 17:12:38,405 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-11-12 17:12:38,405 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-11-12 17:12:38,405 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-11-12 17:12:38,406 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 241 [2018-11-12 17:12:38,406 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-12 17:12:38,406 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-11-12 17:12:38,407 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-11-12 17:12:38,407 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-11-12 17:12:38,407 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-11-12 17:12:38,412 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2018-11-12 17:12:38,866 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-12 17:12:38,993 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-12 17:12:38,994 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-12 17:12:38,995 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-12 17:12:38,998 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-12 17:12:39,000 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-12 17:12:39,016 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-12 17:12:39,017 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-12 17:12:39,022 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-12 17:12:39,033 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-12 17:12:39,036 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-12 17:12:39,040 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-12 17:12:39,043 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-12 17:12:39,048 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-12 17:12:39,050 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-12 17:12:39,061 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-12 17:12:39,070 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-12 17:12:39,082 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-12 17:12:39,085 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-12 17:12:39,087 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-12 17:12:39,109 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-12 17:12:39,114 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-12 17:12:39,122 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-12 17:12:39,125 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-12 17:12:39,131 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-12 17:12:39,136 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-12 17:12:39,147 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-12 17:12:39,151 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-12 17:12:39,169 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-12 17:12:39,180 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-12 17:12:39,197 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-12 17:12:39,202 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-12 17:12:39,204 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-12 17:12:39,209 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-12 17:12:39,220 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-12 17:12:39,222 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-12 17:12:39,231 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-12 17:12:39,235 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-12 17:12:39,239 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-12 17:12:39,243 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-12 17:12:39,248 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-12 17:12:39,250 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-12 17:12:39,252 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-12 17:12:39,273 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-12 17:12:39,295 WARN L179 SmtUtils]: Spent 522.00 ms on a formula simplification. DAG size of input: 417 DAG size of output: 185 [2018-11-12 17:12:39,417 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-12 17:12:39,424 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-12 17:12:39,541 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-12 17:12:39,542 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-12 17:12:39,543 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-12 17:12:39,544 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-12 17:12:39,545 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-12 17:12:39,551 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-12 17:12:39,552 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-12 17:12:39,553 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-12 17:12:39,555 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-12 17:12:39,560 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-12 17:12:39,564 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-12 17:12:39,567 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-12 17:12:39,568 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-12 17:12:39,571 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-12 17:12:39,574 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-12 17:12:39,606 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-12 17:12:39,615 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-12 17:12:39,622 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-12 17:12:39,632 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-12 17:12:39,634 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-12 17:12:39,636 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-12 17:12:39,638 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-12 17:12:39,641 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-12 17:12:39,645 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-12 17:12:39,648 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-12 17:12:39,651 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-12 17:12:39,655 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-12 17:12:39,661 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-12 17:12:39,664 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-12 17:12:39,673 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-12 17:12:39,679 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-12 17:12:39,691 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-12 17:12:39,695 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-12 17:12:39,698 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-12 17:12:39,702 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-12 17:12:39,713 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-12 17:12:39,715 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-12 17:12:39,724 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-12 17:12:39,726 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-12 17:12:39,728 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-12 17:12:39,731 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-12 17:12:39,734 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-12 17:12:39,736 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-12 17:12:39,737 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-12 17:12:39,755 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-12 17:12:39,770 WARN L179 SmtUtils]: Spent 473.00 ms on a formula simplification. DAG size of input: 405 DAG size of output: 177 [2018-11-12 17:12:40,144 WARN L179 SmtUtils]: Spent 372.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 54 [2018-11-12 17:12:40,555 WARN L179 SmtUtils]: Spent 407.00 ms on a formula simplification. DAG size of input: 142 DAG size of output: 86 [2018-11-12 17:12:49,329 WARN L179 SmtUtils]: Spent 8.75 s on a formula simplification. DAG size of input: 407 DAG size of output: 126 [2018-11-12 17:12:50,031 WARN L179 SmtUtils]: Spent 685.00 ms on a formula simplification. DAG size of input: 214 DAG size of output: 106 [2018-11-12 17:12:50,586 WARN L179 SmtUtils]: Spent 552.00 ms on a formula simplification. DAG size of input: 208 DAG size of output: 109 [2018-11-12 17:12:50,589 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2018-11-12 17:12:50,589 INFO L421 ceAbstractionStarter]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: (and (= ~a7~0 |old(~a7~0)|) (= |old(~a8~0)| ~a8~0) (= |old(~a20~0)| ~a20~0) (= ~a17~0 |old(~a17~0)|)) [2018-11-12 17:12:50,589 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2018-11-12 17:12:50,590 INFO L425 ceAbstractionStarter]: For program point L333(lines 333 390) no Hoare annotation was computed. [2018-11-12 17:12:50,590 INFO L425 ceAbstractionStarter]: For program point L102(lines 102 390) no Hoare annotation was computed. [2018-11-12 17:12:50,590 INFO L425 ceAbstractionStarter]: For program point L565-1(lines 30 575) no Hoare annotation was computed. [2018-11-12 17:12:50,591 INFO L425 ceAbstractionStarter]: For program point L532-1(lines 30 575) no Hoare annotation was computed. [2018-11-12 17:12:50,591 INFO L425 ceAbstractionStarter]: For program point L499-1(lines 30 575) no Hoare annotation was computed. [2018-11-12 17:12:50,592 INFO L425 ceAbstractionStarter]: For program point L466-1(lines 30 575) no Hoare annotation was computed. [2018-11-12 17:12:50,592 INFO L425 ceAbstractionStarter]: For program point L433-1(lines 30 575) no Hoare annotation was computed. [2018-11-12 17:12:50,592 INFO L425 ceAbstractionStarter]: For program point L400-1(lines 30 575) no Hoare annotation was computed. [2018-11-12 17:12:50,592 INFO L425 ceAbstractionStarter]: For program point L268(lines 268 390) no Hoare annotation was computed. [2018-11-12 17:12:50,592 INFO L425 ceAbstractionStarter]: For program point L136(lines 136 390) no Hoare annotation was computed. [2018-11-12 17:12:50,592 INFO L425 ceAbstractionStarter]: For program point L566(line 566) no Hoare annotation was computed. [2018-11-12 17:12:50,592 INFO L425 ceAbstractionStarter]: For program point L533(line 533) no Hoare annotation was computed. [2018-11-12 17:12:50,592 INFO L425 ceAbstractionStarter]: For program point L500(line 500) no Hoare annotation was computed. [2018-11-12 17:12:50,592 INFO L425 ceAbstractionStarter]: For program point L467(line 467) no Hoare annotation was computed. [2018-11-12 17:12:50,592 INFO L425 ceAbstractionStarter]: For program point L434(line 434) no Hoare annotation was computed. [2018-11-12 17:12:50,592 INFO L425 ceAbstractionStarter]: For program point L401(line 401) no Hoare annotation was computed. [2018-11-12 17:12:50,592 INFO L425 ceAbstractionStarter]: For program point L203(lines 203 390) no Hoare annotation was computed. [2018-11-12 17:12:50,592 INFO L425 ceAbstractionStarter]: For program point L72(lines 72 390) no Hoare annotation was computed. [2018-11-12 17:12:50,593 INFO L425 ceAbstractionStarter]: For program point L568-1(lines 30 575) no Hoare annotation was computed. [2018-11-12 17:12:50,593 INFO L425 ceAbstractionStarter]: For program point L535-1(lines 30 575) no Hoare annotation was computed. [2018-11-12 17:12:50,593 INFO L425 ceAbstractionStarter]: For program point L502-1(lines 30 575) no Hoare annotation was computed. [2018-11-12 17:12:50,593 INFO L425 ceAbstractionStarter]: For program point L469-1(lines 30 575) no Hoare annotation was computed. [2018-11-12 17:12:50,593 INFO L425 ceAbstractionStarter]: For program point L436-1(lines 30 575) no Hoare annotation was computed. [2018-11-12 17:12:50,593 INFO L425 ceAbstractionStarter]: For program point L403-1(lines 30 575) no Hoare annotation was computed. [2018-11-12 17:12:50,593 INFO L425 ceAbstractionStarter]: For program point L337(lines 337 390) no Hoare annotation was computed. [2018-11-12 17:12:50,593 INFO L425 ceAbstractionStarter]: For program point L238(lines 238 390) no Hoare annotation was computed. [2018-11-12 17:12:50,594 INFO L425 ceAbstractionStarter]: For program point L569(line 569) no Hoare annotation was computed. [2018-11-12 17:12:50,594 INFO L425 ceAbstractionStarter]: For program point L536(line 536) no Hoare annotation was computed. [2018-11-12 17:12:50,594 INFO L425 ceAbstractionStarter]: For program point L503(line 503) no Hoare annotation was computed. [2018-11-12 17:12:50,594 INFO L425 ceAbstractionStarter]: For program point L470(line 470) no Hoare annotation was computed. [2018-11-12 17:12:50,594 INFO L425 ceAbstractionStarter]: For program point L437(line 437) no Hoare annotation was computed. [2018-11-12 17:12:50,594 INFO L425 ceAbstractionStarter]: For program point L404(line 404) no Hoare annotation was computed. [2018-11-12 17:12:50,594 INFO L425 ceAbstractionStarter]: For program point L173(lines 173 390) no Hoare annotation was computed. [2018-11-12 17:12:50,595 INFO L425 ceAbstractionStarter]: For program point L140(lines 140 390) no Hoare annotation was computed. [2018-11-12 17:12:50,595 INFO L425 ceAbstractionStarter]: For program point L372(lines 372 390) no Hoare annotation was computed. [2018-11-12 17:12:50,595 INFO L425 ceAbstractionStarter]: For program point L306(lines 306 390) no Hoare annotation was computed. [2018-11-12 17:12:50,595 INFO L425 ceAbstractionStarter]: For program point L273(lines 273 390) no Hoare annotation was computed. [2018-11-12 17:12:50,595 INFO L425 ceAbstractionStarter]: For program point calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION(line 509) no Hoare annotation was computed. [2018-11-12 17:12:50,595 INFO L425 ceAbstractionStarter]: For program point L108(lines 108 390) no Hoare annotation was computed. [2018-11-12 17:12:50,595 INFO L425 ceAbstractionStarter]: For program point L571-1(lines 571 573) no Hoare annotation was computed. [2018-11-12 17:12:50,595 INFO L425 ceAbstractionStarter]: For program point L538-1(lines 30 575) no Hoare annotation was computed. [2018-11-12 17:12:50,596 INFO L425 ceAbstractionStarter]: For program point L505-1(lines 30 575) no Hoare annotation was computed. [2018-11-12 17:12:50,596 INFO L425 ceAbstractionStarter]: For program point L472-1(lines 30 575) no Hoare annotation was computed. [2018-11-12 17:12:50,596 INFO L425 ceAbstractionStarter]: For program point L439-1(lines 30 575) no Hoare annotation was computed. [2018-11-12 17:12:50,596 INFO L425 ceAbstractionStarter]: For program point L406-1(lines 30 575) no Hoare annotation was computed. [2018-11-12 17:12:50,596 INFO L425 ceAbstractionStarter]: For program point L208(lines 208 390) no Hoare annotation was computed. [2018-11-12 17:12:50,596 INFO L425 ceAbstractionStarter]: For program point L43(lines 43 390) no Hoare annotation was computed. [2018-11-12 17:12:50,596 INFO L425 ceAbstractionStarter]: For program point L572(line 572) no Hoare annotation was computed. [2018-11-12 17:12:50,596 INFO L425 ceAbstractionStarter]: For program point L539(line 539) no Hoare annotation was computed. [2018-11-12 17:12:50,596 INFO L425 ceAbstractionStarter]: For program point L506(line 506) no Hoare annotation was computed. [2018-11-12 17:12:50,596 INFO L425 ceAbstractionStarter]: For program point L473(line 473) no Hoare annotation was computed. [2018-11-12 17:12:50,596 INFO L425 ceAbstractionStarter]: For program point L440(line 440) no Hoare annotation was computed. [2018-11-12 17:12:50,596 INFO L425 ceAbstractionStarter]: For program point L407(line 407) no Hoare annotation was computed. [2018-11-12 17:12:50,596 INFO L425 ceAbstractionStarter]: For program point L144(lines 144 390) no Hoare annotation was computed. [2018-11-12 17:12:50,597 INFO L425 ceAbstractionStarter]: For program point L541-1(lines 30 575) no Hoare annotation was computed. [2018-11-12 17:12:50,597 INFO L425 ceAbstractionStarter]: For program point L508-1(lines 30 575) no Hoare annotation was computed. [2018-11-12 17:12:50,597 INFO L425 ceAbstractionStarter]: For program point L475-1(lines 30 575) no Hoare annotation was computed. [2018-11-12 17:12:50,597 INFO L425 ceAbstractionStarter]: For program point L442-1(lines 30 575) no Hoare annotation was computed. [2018-11-12 17:12:50,597 INFO L425 ceAbstractionStarter]: For program point L409-1(lines 30 575) no Hoare annotation was computed. [2018-11-12 17:12:50,597 INFO L425 ceAbstractionStarter]: For program point L178(lines 178 390) no Hoare annotation was computed. [2018-11-12 17:12:50,597 INFO L425 ceAbstractionStarter]: For program point L542(line 542) no Hoare annotation was computed. [2018-11-12 17:12:50,597 INFO L425 ceAbstractionStarter]: For program point L509(line 509) no Hoare annotation was computed. [2018-11-12 17:12:50,597 INFO L425 ceAbstractionStarter]: For program point L476(line 476) no Hoare annotation was computed. [2018-11-12 17:12:50,597 INFO L425 ceAbstractionStarter]: For program point L443(line 443) no Hoare annotation was computed. [2018-11-12 17:12:50,598 INFO L425 ceAbstractionStarter]: For program point L410(line 410) no Hoare annotation was computed. [2018-11-12 17:12:50,598 INFO L425 ceAbstractionStarter]: For program point L377(lines 377 390) no Hoare annotation was computed. [2018-11-12 17:12:50,598 INFO L425 ceAbstractionStarter]: For program point L278(lines 278 390) no Hoare annotation was computed. [2018-11-12 17:12:50,598 INFO L425 ceAbstractionStarter]: For program point L245(lines 245 390) no Hoare annotation was computed. [2018-11-12 17:12:50,598 INFO L425 ceAbstractionStarter]: For program point L80(lines 80 390) no Hoare annotation was computed. [2018-11-12 17:12:50,598 INFO L425 ceAbstractionStarter]: For program point L345(lines 345 390) no Hoare annotation was computed. [2018-11-12 17:12:50,598 INFO L425 ceAbstractionStarter]: For program point L312(lines 312 390) no Hoare annotation was computed. [2018-11-12 17:12:50,598 INFO L425 ceAbstractionStarter]: For program point L114(lines 114 390) no Hoare annotation was computed. [2018-11-12 17:12:50,598 INFO L425 ceAbstractionStarter]: For program point L544-1(lines 30 575) no Hoare annotation was computed. [2018-11-12 17:12:50,599 INFO L425 ceAbstractionStarter]: For program point L511-1(lines 30 575) no Hoare annotation was computed. [2018-11-12 17:12:50,599 INFO L425 ceAbstractionStarter]: For program point L478-1(lines 30 575) no Hoare annotation was computed. [2018-11-12 17:12:50,599 INFO L425 ceAbstractionStarter]: For program point L445-1(lines 30 575) no Hoare annotation was computed. [2018-11-12 17:12:50,599 INFO L425 ceAbstractionStarter]: For program point L412-1(lines 30 575) no Hoare annotation was computed. [2018-11-12 17:12:50,599 INFO L425 ceAbstractionStarter]: For program point L214(lines 214 390) no Hoare annotation was computed. [2018-11-12 17:12:50,599 INFO L425 ceAbstractionStarter]: For program point L148(lines 148 390) no Hoare annotation was computed. [2018-11-12 17:12:50,599 INFO L425 ceAbstractionStarter]: For program point L49(lines 49 390) no Hoare annotation was computed. [2018-11-12 17:12:50,599 INFO L425 ceAbstractionStarter]: For program point L545(line 545) no Hoare annotation was computed. [2018-11-12 17:12:50,599 INFO L425 ceAbstractionStarter]: For program point L512(line 512) no Hoare annotation was computed. [2018-11-12 17:12:50,600 INFO L425 ceAbstractionStarter]: For program point L479(line 479) no Hoare annotation was computed. [2018-11-12 17:12:50,600 INFO L425 ceAbstractionStarter]: For program point L446(line 446) no Hoare annotation was computed. [2018-11-12 17:12:50,600 INFO L425 ceAbstractionStarter]: For program point L413(line 413) no Hoare annotation was computed. [2018-11-12 17:12:50,600 INFO L425 ceAbstractionStarter]: For program point L84(lines 84 390) no Hoare annotation was computed. [2018-11-12 17:12:50,600 INFO L425 ceAbstractionStarter]: For program point calculate_outputFINAL(lines 30 575) no Hoare annotation was computed. [2018-11-12 17:12:50,600 INFO L425 ceAbstractionStarter]: For program point calculate_outputEXIT(lines 30 575) no Hoare annotation was computed. [2018-11-12 17:12:50,600 INFO L425 ceAbstractionStarter]: For program point L547-1(lines 30 575) no Hoare annotation was computed. [2018-11-12 17:12:50,600 INFO L425 ceAbstractionStarter]: For program point L514-1(lines 30 575) no Hoare annotation was computed. [2018-11-12 17:12:50,600 INFO L425 ceAbstractionStarter]: For program point L481-1(lines 30 575) no Hoare annotation was computed. [2018-11-12 17:12:50,600 INFO L425 ceAbstractionStarter]: For program point L448-1(lines 30 575) no Hoare annotation was computed. [2018-11-12 17:12:50,600 INFO L425 ceAbstractionStarter]: For program point L382(lines 382 390) no Hoare annotation was computed. [2018-11-12 17:12:50,600 INFO L425 ceAbstractionStarter]: For program point L415-1(lines 30 575) no Hoare annotation was computed. [2018-11-12 17:12:50,601 INFO L425 ceAbstractionStarter]: For program point L316(lines 316 390) no Hoare annotation was computed. [2018-11-12 17:12:50,601 INFO L425 ceAbstractionStarter]: For program point L250(lines 250 390) no Hoare annotation was computed. [2018-11-12 17:12:50,601 INFO L425 ceAbstractionStarter]: For program point L548(line 548) no Hoare annotation was computed. [2018-11-12 17:12:50,601 INFO L425 ceAbstractionStarter]: For program point L515(line 515) no Hoare annotation was computed. [2018-11-12 17:12:50,601 INFO L425 ceAbstractionStarter]: For program point L482(line 482) no Hoare annotation was computed. [2018-11-12 17:12:50,601 INFO L425 ceAbstractionStarter]: For program point L449(line 449) no Hoare annotation was computed. [2018-11-12 17:12:50,601 INFO L425 ceAbstractionStarter]: For program point L416(line 416) no Hoare annotation was computed. [2018-11-12 17:12:50,601 INFO L425 ceAbstractionStarter]: For program point L218(lines 218 390) no Hoare annotation was computed. [2018-11-12 17:12:50,601 INFO L425 ceAbstractionStarter]: For program point L152(lines 152 390) no Hoare annotation was computed. [2018-11-12 17:12:50,601 INFO L425 ceAbstractionStarter]: For program point L119(lines 119 390) no Hoare annotation was computed. [2018-11-12 17:12:50,601 INFO L425 ceAbstractionStarter]: For program point L318(lines 318 390) no Hoare annotation was computed. [2018-11-12 17:12:50,601 INFO L425 ceAbstractionStarter]: For program point L186(lines 186 390) no Hoare annotation was computed. [2018-11-12 17:12:50,602 INFO L425 ceAbstractionStarter]: For program point L54(lines 54 390) no Hoare annotation was computed. [2018-11-12 17:12:50,602 INFO L425 ceAbstractionStarter]: For program point L550-1(lines 30 575) no Hoare annotation was computed. [2018-11-12 17:12:50,602 INFO L425 ceAbstractionStarter]: For program point L517-1(lines 30 575) no Hoare annotation was computed. [2018-11-12 17:12:50,602 INFO L425 ceAbstractionStarter]: For program point L484-1(lines 30 575) no Hoare annotation was computed. [2018-11-12 17:12:50,602 INFO L425 ceAbstractionStarter]: For program point L451-1(lines 30 575) no Hoare annotation was computed. [2018-11-12 17:12:50,602 INFO L425 ceAbstractionStarter]: For program point L418-1(lines 30 575) no Hoare annotation was computed. [2018-11-12 17:12:50,602 INFO L425 ceAbstractionStarter]: For program point L286(lines 286 390) no Hoare annotation was computed. [2018-11-12 17:12:50,603 INFO L425 ceAbstractionStarter]: For program point L551(line 551) no Hoare annotation was computed. [2018-11-12 17:12:50,603 INFO L425 ceAbstractionStarter]: For program point L518(line 518) no Hoare annotation was computed. [2018-11-12 17:12:50,603 INFO L425 ceAbstractionStarter]: For program point L485(line 485) no Hoare annotation was computed. [2018-11-12 17:12:50,603 INFO L425 ceAbstractionStarter]: For program point L452(line 452) no Hoare annotation was computed. [2018-11-12 17:12:50,603 INFO L425 ceAbstractionStarter]: For program point L419(line 419) no Hoare annotation was computed. [2018-11-12 17:12:50,603 INFO L425 ceAbstractionStarter]: For program point L353(lines 353 390) no Hoare annotation was computed. [2018-11-12 17:12:50,603 INFO L425 ceAbstractionStarter]: For program point L189(lines 189 390) no Hoare annotation was computed. [2018-11-12 17:12:50,604 INFO L425 ceAbstractionStarter]: For program point L553-1(lines 30 575) no Hoare annotation was computed. [2018-11-12 17:12:50,604 INFO L425 ceAbstractionStarter]: For program point L520-1(lines 30 575) no Hoare annotation was computed. [2018-11-12 17:12:50,604 INFO L425 ceAbstractionStarter]: For program point L487-1(lines 30 575) no Hoare annotation was computed. [2018-11-12 17:12:50,604 INFO L425 ceAbstractionStarter]: For program point L454-1(lines 30 575) no Hoare annotation was computed. [2018-11-12 17:12:50,604 INFO L425 ceAbstractionStarter]: For program point L421-1(lines 30 575) no Hoare annotation was computed. [2018-11-12 17:12:50,604 INFO L425 ceAbstractionStarter]: For program point L355(lines 355 390) no Hoare annotation was computed. [2018-11-12 17:12:50,604 INFO L425 ceAbstractionStarter]: For program point L256(lines 256 390) no Hoare annotation was computed. [2018-11-12 17:12:50,604 INFO L425 ceAbstractionStarter]: For program point L223(lines 223 390) no Hoare annotation was computed. [2018-11-12 17:12:50,605 INFO L425 ceAbstractionStarter]: For program point L124(lines 124 390) no Hoare annotation was computed. [2018-11-12 17:12:50,605 INFO L425 ceAbstractionStarter]: For program point L554(line 554) no Hoare annotation was computed. [2018-11-12 17:12:50,605 INFO L425 ceAbstractionStarter]: For program point L521(line 521) no Hoare annotation was computed. [2018-11-12 17:12:50,605 INFO L425 ceAbstractionStarter]: For program point L488(line 488) no Hoare annotation was computed. [2018-11-12 17:12:50,605 INFO L425 ceAbstractionStarter]: For program point L455(line 455) no Hoare annotation was computed. [2018-11-12 17:12:50,605 INFO L425 ceAbstractionStarter]: For program point L422(line 422) no Hoare annotation was computed. [2018-11-12 17:12:50,605 INFO L425 ceAbstractionStarter]: For program point L92(lines 92 390) no Hoare annotation was computed. [2018-11-12 17:12:50,606 INFO L421 ceAbstractionStarter]: At program point calculate_outputENTRY(lines 30 575) the Hoare annotation is: (let ((.cse24 (= 1 |old(~a17~0)|)) (.cse12 (= ~a7~0 |old(~a7~0)|)) (.cse13 (= |old(~a8~0)| ~a8~0)) (.cse19 (= |old(~a20~0)| ~a20~0)) (.cse14 (= ~a17~0 |old(~a17~0)|))) (let ((.cse0 (and .cse12 .cse13 .cse19 .cse14)) (.cse3 (< |old(~a20~0)| 1)) (.cse5 (and (= 1 ~a7~0) .cse13 .cse19 .cse14)) (.cse1 (< |old(~a8~0)| 15)) (.cse15 (not (= 1 |old(~a20~0)|))) (.cse6 (not (= 1 |old(~a7~0)|))) (.cse17 (not (= |old(~a20~0)| 1))) (.cse7 (< 0 |old(~a17~0)|)) (.cse21 (and .cse19 .cse14)) (.cse8 (< 6 |calculate_output_#in~input|)) (.cse11 (= ~a21~0 1)) (.cse22 (not (= 0 |old(~a7~0)|))) (.cse9 (not (= 1 |old(~a21~0)|))) (.cse23 (not (= 15 |old(~a8~0)|))) (.cse10 (not (= 8 ~a12~0))) (.cse4 (not .cse24)) (.cse16 (< |calculate_output_#in~input| 1)) (.cse18 (= 6 |old(~a16~0)|)) (.cse2 (< 13 |old(~a8~0)|)) (.cse20 (not (= ~a16~0 6)))) (and (or .cse0 .cse1) (or .cse2 .cse0 .cse3 .cse4) (or .cse5 .cse2 .cse3 .cse6 .cse7) (or .cse8 .cse9 (< 15 |old(~a8~0)|) .cse10 (and (<= ~a16~0 5) .cse11 .cse12 .cse13 .cse14 (<= 4 ~a16~0) (= ~a20~0 1)) .cse4 .cse15 (< 5 |old(~a16~0)|) (< |old(~a16~0)| 4) (< 1 |old(~a7~0)|) (< |old(~a8~0)| 13) (< |old(~a7~0)| 0) .cse16) (or .cse17 .cse5 .cse6 .cse7) (or .cse18 (and .cse12 .cse13 .cse19 .cse14 .cse20) .cse7) (or .cse18 .cse20 .cse1) (or .cse8 (or .cse9 (not (= 4 |old(~a16~0)|)) (not (= 13 |old(~a8~0)|))) .cse10 .cse4 .cse15 .cse6 .cse16 (= ~a16~0 4)) (or .cse18 .cse2 .cse21 .cse6) (or (or (or .cse22 .cse9 .cse10 (< |old(~a16~0)| 5) (< 6 |old(~a16~0)|) .cse23 (< |old(~a17~0)| 0)) .cse17 .cse7) (and (<= 5 ~a16~0) .cse11 (<= ~a16~0 6))) (or .cse18 .cse2 .cse24 .cse21) (or .cse8 (and .cse11 (= ~a16~0 5)) (let ((.cse25 (not (= 5 |old(~a16~0)|)))) (and (or .cse22 .cse9 .cse23 (not (= 0 |old(~a17~0)|)) (not (= 0 |old(~a20~0)|)) .cse25 .cse10) (or .cse22 .cse9 .cse23 .cse25 .cse10 (< 1 |old(~a20~0)|) (< |old(~a20~0)| 0) .cse4))) .cse16) (or .cse18 .cse2 (and .cse12 .cse13 .cse20))))) [2018-11-12 17:12:50,606 INFO L425 ceAbstractionStarter]: For program point L324(lines 324 390) no Hoare annotation was computed. [2018-11-12 17:12:50,606 INFO L425 ceAbstractionStarter]: For program point L556-1(lines 30 575) no Hoare annotation was computed. [2018-11-12 17:12:50,606 INFO L425 ceAbstractionStarter]: For program point L523-1(lines 30 575) no Hoare annotation was computed. [2018-11-12 17:12:50,606 INFO L425 ceAbstractionStarter]: For program point L490-1(lines 30 575) no Hoare annotation was computed. [2018-11-12 17:12:50,606 INFO L425 ceAbstractionStarter]: For program point L457-1(lines 30 575) no Hoare annotation was computed. [2018-11-12 17:12:50,606 INFO L425 ceAbstractionStarter]: For program point L391(lines 391 393) no Hoare annotation was computed. [2018-11-12 17:12:50,607 INFO L425 ceAbstractionStarter]: For program point L424-1(lines 30 575) no Hoare annotation was computed. [2018-11-12 17:12:50,607 INFO L425 ceAbstractionStarter]: For program point L391-2(lines 30 575) no Hoare annotation was computed. [2018-11-12 17:12:50,607 INFO L425 ceAbstractionStarter]: For program point L292(lines 292 390) no Hoare annotation was computed. [2018-11-12 17:12:50,607 INFO L425 ceAbstractionStarter]: For program point L160(lines 160 390) no Hoare annotation was computed. [2018-11-12 17:12:50,607 INFO L425 ceAbstractionStarter]: For program point L557(line 557) no Hoare annotation was computed. [2018-11-12 17:12:50,607 INFO L425 ceAbstractionStarter]: For program point L524(line 524) no Hoare annotation was computed. [2018-11-12 17:12:50,607 INFO L425 ceAbstractionStarter]: For program point L491(line 491) no Hoare annotation was computed. [2018-11-12 17:12:50,607 INFO L425 ceAbstractionStarter]: For program point L458(line 458) no Hoare annotation was computed. [2018-11-12 17:12:50,607 INFO L425 ceAbstractionStarter]: For program point L425(line 425) no Hoare annotation was computed. [2018-11-12 17:12:50,608 INFO L425 ceAbstractionStarter]: For program point L392(line 392) no Hoare annotation was computed. [2018-11-12 17:12:50,608 INFO L425 ceAbstractionStarter]: For program point L194(lines 194 390) no Hoare annotation was computed. [2018-11-12 17:12:50,608 INFO L425 ceAbstractionStarter]: For program point L62(lines 62 390) no Hoare annotation was computed. [2018-11-12 17:12:50,608 INFO L425 ceAbstractionStarter]: For program point L261(lines 261 390) no Hoare annotation was computed. [2018-11-12 17:12:50,608 INFO L425 ceAbstractionStarter]: For program point L129(lines 129 390) no Hoare annotation was computed. [2018-11-12 17:12:50,608 INFO L425 ceAbstractionStarter]: For program point L559-1(lines 30 575) no Hoare annotation was computed. [2018-11-12 17:12:50,608 INFO L425 ceAbstractionStarter]: For program point L526-1(lines 30 575) no Hoare annotation was computed. [2018-11-12 17:12:50,609 INFO L425 ceAbstractionStarter]: For program point L493-1(lines 30 575) no Hoare annotation was computed. [2018-11-12 17:12:50,609 INFO L425 ceAbstractionStarter]: For program point L460-1(lines 30 575) no Hoare annotation was computed. [2018-11-12 17:12:50,609 INFO L425 ceAbstractionStarter]: For program point L427-1(lines 30 575) no Hoare annotation was computed. [2018-11-12 17:12:50,609 INFO L425 ceAbstractionStarter]: For program point L361(lines 361 390) no Hoare annotation was computed. [2018-11-12 17:12:50,609 INFO L425 ceAbstractionStarter]: For program point L394-1(lines 30 575) no Hoare annotation was computed. [2018-11-12 17:12:50,609 INFO L425 ceAbstractionStarter]: For program point L97(lines 97 390) no Hoare annotation was computed. [2018-11-12 17:12:50,609 INFO L425 ceAbstractionStarter]: For program point L31(lines 31 390) no Hoare annotation was computed. [2018-11-12 17:12:50,609 INFO L425 ceAbstractionStarter]: For program point L560(line 560) no Hoare annotation was computed. [2018-11-12 17:12:50,610 INFO L425 ceAbstractionStarter]: For program point L527(line 527) no Hoare annotation was computed. [2018-11-12 17:12:50,610 INFO L425 ceAbstractionStarter]: For program point L494(line 494) no Hoare annotation was computed. [2018-11-12 17:12:50,610 INFO L425 ceAbstractionStarter]: For program point L461(line 461) no Hoare annotation was computed. [2018-11-12 17:12:50,610 INFO L425 ceAbstractionStarter]: For program point L428(line 428) no Hoare annotation was computed. [2018-11-12 17:12:50,610 INFO L425 ceAbstractionStarter]: For program point L395(line 395) no Hoare annotation was computed. [2018-11-12 17:12:50,610 INFO L425 ceAbstractionStarter]: For program point L329(lines 329 390) no Hoare annotation was computed. [2018-11-12 17:12:50,610 INFO L425 ceAbstractionStarter]: For program point L197(lines 197 390) no Hoare annotation was computed. [2018-11-12 17:12:50,610 INFO L425 ceAbstractionStarter]: For program point L65(lines 65 390) no Hoare annotation was computed. [2018-11-12 17:12:50,611 INFO L425 ceAbstractionStarter]: For program point L363(lines 363 390) no Hoare annotation was computed. [2018-11-12 17:12:50,611 INFO L425 ceAbstractionStarter]: For program point L231(lines 231 390) no Hoare annotation was computed. [2018-11-12 17:12:50,611 INFO L425 ceAbstractionStarter]: For program point L165(lines 165 390) no Hoare annotation was computed. [2018-11-12 17:12:50,611 INFO L425 ceAbstractionStarter]: For program point L562-1(lines 30 575) no Hoare annotation was computed. [2018-11-12 17:12:50,611 INFO L425 ceAbstractionStarter]: For program point L529-1(lines 30 575) no Hoare annotation was computed. [2018-11-12 17:12:50,611 INFO L425 ceAbstractionStarter]: For program point L496-1(lines 30 575) no Hoare annotation was computed. [2018-11-12 17:12:50,611 INFO L425 ceAbstractionStarter]: For program point L463-1(lines 30 575) no Hoare annotation was computed. [2018-11-12 17:12:50,611 INFO L425 ceAbstractionStarter]: For program point L430-1(lines 30 575) no Hoare annotation was computed. [2018-11-12 17:12:50,611 INFO L425 ceAbstractionStarter]: For program point L397-1(lines 30 575) no Hoare annotation was computed. [2018-11-12 17:12:50,611 INFO L425 ceAbstractionStarter]: For program point L265(lines 265 390) no Hoare annotation was computed. [2018-11-12 17:12:50,612 INFO L425 ceAbstractionStarter]: For program point L563(line 563) no Hoare annotation was computed. [2018-11-12 17:12:50,612 INFO L425 ceAbstractionStarter]: For program point L530(line 530) no Hoare annotation was computed. [2018-11-12 17:12:50,612 INFO L425 ceAbstractionStarter]: For program point L497(line 497) no Hoare annotation was computed. [2018-11-12 17:12:50,612 INFO L425 ceAbstractionStarter]: For program point L464(line 464) no Hoare annotation was computed. [2018-11-12 17:12:50,612 INFO L425 ceAbstractionStarter]: For program point L431(line 431) no Hoare annotation was computed. [2018-11-12 17:12:50,612 INFO L425 ceAbstractionStarter]: For program point L398(line 398) no Hoare annotation was computed. [2018-11-12 17:12:50,612 INFO L425 ceAbstractionStarter]: For program point L365(lines 365 390) no Hoare annotation was computed. [2018-11-12 17:12:50,612 INFO L425 ceAbstractionStarter]: For program point L299(lines 299 390) no Hoare annotation was computed. [2018-11-12 17:12:50,612 INFO L425 ceAbstractionStarter]: For program point L35(lines 35 390) no Hoare annotation was computed. [2018-11-12 17:12:50,612 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2018-11-12 17:12:50,613 INFO L421 ceAbstractionStarter]: At program point L-1(line -1) the Hoare annotation is: (and (= ~d~0 4) (= ~a8~0 15) (= ~z~0 26) (= ~a17~0 1) (= ~c~0 3) (= ~a21~0 1) (= ~f~0 6) (= ~w~0 23) (= ~u~0 21) (= ~v~0 22) (= ~a7~0 0) (= ~y~0 25) (= ~e~0 5) (= ~x~0 24) (= ~b~0 2) (= ~a~0 1) (= ~a12~0 8) (= ~a20~0 1) (= ~a16~0 5)) [2018-11-12 17:12:50,613 INFO L428 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2018-11-12 17:12:50,613 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2018-11-12 17:12:50,613 INFO L421 ceAbstractionStarter]: At program point mainENTRY(lines 577 594) the Hoare annotation is: (or (and (= ~a21~0 1) (= |old(~a8~0)| ~a8~0) (= ~a7~0 |old(~a7~0)|) (= ~a17~0 |old(~a17~0)|) (= ~a20~0 1) (= ~a16~0 5)) (not (= ~v~0 22)) (not (= ~u~0 21)) (not (= |old(~a16~0)| 5)) (not (= |old(~a21~0)| 1)) (not (= ~b~0 2)) (not (= ~y~0 25)) (not (= |old(~a7~0)| 0)) (not (= 3 ~c~0)) (not (= |old(~a20~0)| 1)) (not (= ~a~0 1)) (not (= 26 ~z~0)) (not (= ~x~0 24)) (not (= |old(~a17~0)| 1)) (not (= ~a12~0 8)) (not (= ~e~0 5)) (not (= |old(~a8~0)| 15)) (not (= ~d~0 4)) (not (= 6 ~f~0)) (not (= ~w~0 23))) [2018-11-12 17:12:50,613 INFO L425 ceAbstractionStarter]: For program point mainEXIT(lines 577 594) no Hoare annotation was computed. [2018-11-12 17:12:50,613 INFO L421 ceAbstractionStarter]: At program point L591(line 591) the Hoare annotation is: (let ((.cse3 (<= ~a17~0 0)) (.cse5 (<= 1 ~a20~0)) (.cse0 (<= ~a8~0 13)) (.cse2 (= 1 ~a7~0)) (.cse1 (not (= ~a16~0 6))) (.cse4 (= ~a17~0 1))) (or (not (= |old(~a21~0)| 1)) (not (= ~b~0 2)) (not (= ~y~0 25)) (and .cse0 (= ~a7~0 |old(~a7~0)|) .cse1) (and .cse2 (= |old(~a20~0)| ~a20~0) .cse3) (not (= ~x~0 24)) (not (= ~a12~0 8)) (not (= ~e~0 5)) (not (= ~d~0 4)) (and .cse1 .cse3) (not (= 21 ~u~0)) (and .cse0 .cse1 (not .cse4)) (not (= 22 ~v~0)) (and .cse0 (= ~a17~0 |old(~a17~0)|) .cse5) (not (= ~z~0 26)) (not (= |old(~a16~0)| 5)) (and .cse0 .cse2 .cse3 .cse5) (not (= 0 |old(~a7~0)|)) (not (= 3 ~c~0)) (not (= |old(~a20~0)| 1)) (<= 15 ~a8~0) (not (= 23 ~w~0)) (not (= ~a~0 1)) (and .cse0 .cse2 .cse1) (not (= |old(~a17~0)| 1)) (not (= |old(~a8~0)| 15)) (not (= 6 ~f~0)) (and (<= ~a7~0 1) (<= 1 main_~input~0) (<= main_~input~0 6) (<= ~a16~0 5) .cse4 (= ~a21~0 1) (<= 0 ~a7~0) (<= 4 ~a16~0) (= ~a20~0 1)))) [2018-11-12 17:12:50,614 INFO L425 ceAbstractionStarter]: For program point L591-1(line 591) no Hoare annotation was computed. [2018-11-12 17:12:50,614 INFO L425 ceAbstractionStarter]: For program point L588(line 588) no Hoare annotation was computed. [2018-11-12 17:12:50,614 INFO L425 ceAbstractionStarter]: For program point L583-1(lines 583 593) no Hoare annotation was computed. [2018-11-12 17:12:50,614 INFO L421 ceAbstractionStarter]: At program point L583-3(lines 583 593) the Hoare annotation is: (let ((.cse3 (<= ~a17~0 0)) (.cse5 (<= 1 ~a20~0)) (.cse4 (= ~a17~0 1)) (.cse0 (<= ~a8~0 13)) (.cse2 (= 1 ~a7~0)) (.cse1 (not (= ~a16~0 6)))) (or (not (= |old(~a21~0)| 1)) (not (= ~b~0 2)) (not (= ~y~0 25)) (and .cse0 (= ~a7~0 |old(~a7~0)|) .cse1) (and .cse2 (= |old(~a20~0)| ~a20~0) .cse3) (not (= ~x~0 24)) (not (= ~a12~0 8)) (not (= ~e~0 5)) (not (= ~d~0 4)) (and .cse1 .cse3) (not (= 21 ~u~0)) (and .cse0 .cse1 (not .cse4)) (not (= 22 ~v~0)) (and .cse0 (= ~a17~0 |old(~a17~0)|) .cse5) (not (= ~z~0 26)) (not (= |old(~a16~0)| 5)) (and .cse0 .cse2 .cse3 .cse5) (not (= 0 |old(~a7~0)|)) (not (= 3 ~c~0)) (not (= |old(~a20~0)| 1)) (<= 15 ~a8~0) (and (<= ~a7~0 1) (<= ~a16~0 5) .cse4 (= ~a21~0 1) (<= 0 ~a7~0) (<= 4 ~a16~0) (= ~a20~0 1)) (not (= 23 ~w~0)) (not (= ~a~0 1)) (and .cse0 .cse2 .cse1) (not (= |old(~a17~0)| 1)) (not (= |old(~a8~0)| 15)) (not (= 6 ~f~0)))) [2018-11-12 17:12:50,614 INFO L425 ceAbstractionStarter]: For program point L583-4(lines 577 594) no Hoare annotation was computed. [2018-11-12 17:12:50,628 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 12.11 05:12:50 BoogieIcfgContainer [2018-11-12 17:12:50,628 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-11-12 17:12:50,629 INFO L168 Benchmark]: Toolchain (without parser) took 114692.33 ms. Allocated memory was 1.5 GB in the beginning and 4.1 GB in the end (delta: 2.6 GB). Free memory was 1.4 GB in the beginning and 3.2 GB in the end (delta: -1.8 GB). Peak memory consumption was 2.5 GB. Max. memory is 7.1 GB. [2018-11-12 17:12:50,631 INFO L168 Benchmark]: CDTParser took 0.16 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. [2018-11-12 17:12:50,631 INFO L168 Benchmark]: CACSL2BoogieTranslator took 735.21 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.4 GB in the end (delta: 31.7 MB). Peak memory consumption was 31.7 MB. Max. memory is 7.1 GB. [2018-11-12 17:12:50,632 INFO L168 Benchmark]: Boogie Procedure Inliner took 131.47 ms. Allocated memory was 1.5 GB in the beginning and 2.2 GB in the end (delta: 722.5 MB). Free memory was 1.4 GB in the beginning and 2.2 GB in the end (delta: -799.5 MB). Peak memory consumption was 18.4 MB. Max. memory is 7.1 GB. [2018-11-12 17:12:50,633 INFO L168 Benchmark]: Boogie Preprocessor took 106.45 ms. Allocated memory is still 2.2 GB. Free memory is still 2.2 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-11-12 17:12:50,633 INFO L168 Benchmark]: RCFGBuilder took 3042.95 ms. Allocated memory is still 2.2 GB. Free memory was 2.2 GB in the beginning and 2.1 GB in the end (delta: 104.1 MB). Peak memory consumption was 104.1 MB. Max. memory is 7.1 GB. [2018-11-12 17:12:50,634 INFO L168 Benchmark]: TraceAbstraction took 110671.20 ms. Allocated memory was 2.2 GB in the beginning and 4.1 GB in the end (delta: 1.8 GB). Free memory was 2.1 GB in the beginning and 3.2 GB in the end (delta: -1.1 GB). Peak memory consumption was 2.5 GB. Max. memory is 7.1 GB. [2018-11-12 17:12:50,639 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16 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 735.21 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.4 GB in the end (delta: 31.7 MB). Peak memory consumption was 31.7 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 131.47 ms. Allocated memory was 1.5 GB in the beginning and 2.2 GB in the end (delta: 722.5 MB). Free memory was 1.4 GB in the beginning and 2.2 GB in the end (delta: -799.5 MB). Peak memory consumption was 18.4 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 106.45 ms. Allocated memory is still 2.2 GB. Free memory is still 2.2 GB. There was no memory consumed. Max. memory is 7.1 GB. * RCFGBuilder took 3042.95 ms. Allocated memory is still 2.2 GB. Free memory was 2.2 GB in the beginning and 2.1 GB in the end (delta: 104.1 MB). Peak memory consumption was 104.1 MB. Max. memory is 7.1 GB. * TraceAbstraction took 110671.20 ms. Allocated memory was 2.2 GB in the beginning and 4.1 GB in the end (delta: 1.8 GB). Free memory was 2.1 GB in the beginning and 3.2 GB in the end (delta: -1.1 GB). Peak memory consumption was 2.5 GB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 509]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 583]: Loop Invariant Derived loop invariant: ((((((((((((((((((((((((((!(\old(a21) == 1) || !(b == 2)) || !(y == 25)) || ((a8 <= 13 && a7 == \old(a7)) && !(a16 == 6))) || ((1 == a7 && \old(a20) == a20) && a17 <= 0)) || !(x == 24)) || !(a12 == 8)) || !(e == 5)) || !(d == 4)) || (!(a16 == 6) && a17 <= 0)) || !(21 == u)) || ((a8 <= 13 && !(a16 == 6)) && !(a17 == 1))) || !(22 == v)) || ((a8 <= 13 && a17 == \old(a17)) && 1 <= a20)) || !(z == 26)) || !(\old(a16) == 5)) || (((a8 <= 13 && 1 == a7) && a17 <= 0) && 1 <= a20)) || !(0 == \old(a7))) || !(3 == c)) || !(\old(a20) == 1)) || 15 <= a8) || ((((((a7 <= 1 && a16 <= 5) && a17 == 1) && a21 == 1) && 0 <= a7) && 4 <= a16) && a20 == 1)) || !(23 == w)) || !(a == 1)) || ((a8 <= 13 && 1 == a7) && !(a16 == 6))) || !(\old(a17) == 1)) || !(\old(a8) == 15)) || !(6 == f) - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 208 locations, 1 error locations. SAFE Result, 110.5s OverallTime, 10 OverallIterations, 5 TraceHistogramMax, 77.4s AutomataDifference, 0.0s DeadEndRemovalTime, 12.1s HoareAnnotationTime, HoareTripleCheckerStatistics: 1698 SDtfs, 10976 SDslu, 2398 SDs, 0 SdLazy, 14834 SolverSat, 2934 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 29.3s Time, PredicateUnifierStatistics: 10 DeclaredPredicates, 2224 GetRequests, 2001 SyntacticMatches, 12 SemanticMatches, 211 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1564 ImplicationChecksByTransitivity, 7.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=13772occurred in iteration=9, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 7.5s AbstIntTime, 8 AbstIntIterations, 5 AbstIntStrong, 0.9972859882064982 AbsIntWeakeningRatio, 0.2250300842358604 AbsIntAvgWeakeningVarsNumRemoved, 24.70878459687124 AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 1.3s AutomataMinimizationTime, 10 MinimizatonAttempts, 1008 StatesRemovedByMinimization, 7 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 7 LocationsWithAnnotation, 528 PreInvPairs, 916 NumberOfFragments, 962 HoareAnnotationTreeSize, 528 FomulaSimplifications, 24998 FormulaSimplificationTreeSizeReduction, 1.3s HoareSimplificationTime, 7 FomulaSimplificationsInter, 8616 FormulaSimplificationTreeSizeReductionInter, 10.7s HoareSimplificationTimeInter, RefinementEngineStatistics: TraceCheckStatistics: 0.1s SsaConstructionTime, 0.5s SatisfiabilityAnalysisTime, 4.5s InterpolantComputationTime, 2272 NumberOfCodeBlocks, 2272 NumberOfCodeBlocksAsserted, 13 NumberOfCheckSat, 2851 ConstructedInterpolants, 0 QuantifiedInterpolants, 1089805 SizeOfPredicates, 4 NumberOfNonLiveVariables, 1715 ConjunctsInSsa, 12 ConjunctsInUnsatCore, 16 InterpolantComputations, 4 PerfectInterpolantSequences, 1497/1697 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...