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/Problem19_label47_false-unreach-call.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-63daa26 [2018-11-12 17:03:32,007 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-12 17:03:32,009 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-12 17:03:32,029 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-12 17:03:32,030 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-12 17:03:32,031 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-12 17:03:32,032 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-12 17:03:32,034 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-12 17:03:32,036 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-12 17:03:32,036 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-12 17:03:32,037 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-12 17:03:32,038 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-12 17:03:32,038 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-12 17:03:32,039 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-12 17:03:32,041 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-12 17:03:32,041 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-12 17:03:32,042 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-12 17:03:32,044 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-12 17:03:32,046 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-12 17:03:32,048 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-12 17:03:32,054 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-12 17:03:32,058 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-12 17:03:32,060 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-12 17:03:32,061 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-12 17:03:32,061 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-12 17:03:32,064 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-12 17:03:32,065 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-12 17:03:32,068 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-12 17:03:32,069 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-12 17:03:32,073 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-12 17:03:32,073 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-12 17:03:32,074 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-12 17:03:32,075 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-12 17:03:32,075 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-12 17:03:32,076 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-12 17:03:32,077 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-12 17:03:32,078 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 17:03:32,113 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-12 17:03:32,113 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-12 17:03:32,114 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-12 17:03:32,115 INFO L133 SettingsManager]: * User list type=DISABLED [2018-11-12 17:03:32,115 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-11-12 17:03:32,115 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-11-12 17:03:32,115 INFO L133 SettingsManager]: * Maximum recursion depth of evaluation operations=6 [2018-11-12 17:03:32,115 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-11-12 17:03:32,116 INFO L133 SettingsManager]: * Octagon Domain=false [2018-11-12 17:03:32,116 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-11-12 17:03:32,116 INFO L133 SettingsManager]: * Log string format=TERM [2018-11-12 17:03:32,116 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-11-12 17:03:32,116 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-11-12 17:03:32,120 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-12 17:03:32,121 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-12 17:03:32,121 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-12 17:03:32,121 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-12 17:03:32,121 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-12 17:03:32,122 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-12 17:03:32,123 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-12 17:03:32,124 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-12 17:03:32,124 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-12 17:03:32,124 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-12 17:03:32,124 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-12 17:03:32,124 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-12 17:03:32,125 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-12 17:03:32,125 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-12 17:03:32,125 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-12 17:03:32,126 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-12 17:03:32,126 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-11-12 17:03:32,126 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-12 17:03:32,126 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-11-12 17:03:32,126 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-11-12 17:03:32,127 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-11-12 17:03:32,127 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-11-12 17:03:32,176 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-12 17:03:32,190 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-12 17:03:32,195 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-12 17:03:32,196 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-12 17:03:32,197 INFO L276 PluginConnector]: CDTParser initialized [2018-11-12 17:03:32,198 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem19_label47_false-unreach-call.c [2018-11-12 17:03:32,265 INFO L218 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9a0c5498f/62c5c245c35a48c9a82bea95d94fe09b/FLAGfce1c5894 [2018-11-12 17:03:33,161 INFO L298 CDTParser]: Found 1 translation units. [2018-11-12 17:03:33,162 INFO L158 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem19_label47_false-unreach-call.c [2018-11-12 17:03:33,211 INFO L346 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9a0c5498f/62c5c245c35a48c9a82bea95d94fe09b/FLAGfce1c5894 [2018-11-12 17:03:33,228 INFO L354 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9a0c5498f/62c5c245c35a48c9a82bea95d94fe09b [2018-11-12 17:03:33,242 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-12 17:03:33,244 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-11-12 17:03:33,245 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-12 17:03:33,245 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-12 17:03:33,249 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-12 17:03:33,250 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 05:03:33" (1/1) ... [2018-11-12 17:03:33,254 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@55907750 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 05:03:33, skipping insertion in model container [2018-11-12 17:03:33,254 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 05:03:33" (1/1) ... [2018-11-12 17:03:33,266 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-12 17:03:33,521 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-11-12 17:03:35,444 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-12 17:03:35,449 INFO L189 MainTranslator]: Completed pre-run [2018-11-12 17:03:36,468 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-12 17:03:36,517 INFO L193 MainTranslator]: Completed translation [2018-11-12 17:03:36,518 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 05:03:36 WrapperNode [2018-11-12 17:03:36,518 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-12 17:03:36,519 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-12 17:03:36,519 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-12 17:03:36,519 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-12 17:03:36,935 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 05:03:36" (1/1) ... [2018-11-12 17:03:37,020 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 05:03:36" (1/1) ... [2018-11-12 17:03:37,031 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-12 17:03:37,032 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-12 17:03:37,032 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-12 17:03:37,032 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-12 17:03:37,042 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 05:03:36" (1/1) ... [2018-11-12 17:03:37,043 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 05:03:36" (1/1) ... [2018-11-12 17:03:37,109 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 05:03:36" (1/1) ... [2018-11-12 17:03:37,109 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 05:03:36" (1/1) ... [2018-11-12 17:03:37,275 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 05:03:36" (1/1) ... [2018-11-12 17:03:37,319 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 05:03:36" (1/1) ... [2018-11-12 17:03:37,364 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 05:03:36" (1/1) ... [2018-11-12 17:03:37,442 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-12 17:03:37,443 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-12 17:03:37,443 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-12 17:03:37,443 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-12 17:03:37,444 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 05:03:36" (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 17:03:37,512 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2018-11-12 17:03:37,513 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-12 17:03:37,513 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-12 17:03:37,513 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output6 [2018-11-12 17:03:37,513 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output6 [2018-11-12 17:03:37,513 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output5 [2018-11-12 17:03:37,513 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output5 [2018-11-12 17:03:37,514 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output4 [2018-11-12 17:03:37,514 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output4 [2018-11-12 17:03:37,514 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output3 [2018-11-12 17:03:37,514 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output3 [2018-11-12 17:03:37,514 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output2 [2018-11-12 17:03:37,514 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output2 [2018-11-12 17:03:37,515 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2018-11-12 17:03:37,515 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2018-11-12 17:03:37,516 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-12 17:03:37,516 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-12 17:03:37,516 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-12 17:03:37,516 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-12 17:03:53,065 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-12 17:03:53,066 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 05:03:53 BoogieIcfgContainer [2018-11-12 17:03:53,066 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-12 17:03:53,067 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-12 17:03:53,067 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-12 17:03:53,071 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-12 17:03:53,071 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.11 05:03:33" (1/3) ... [2018-11-12 17:03:53,072 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@602d967c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 05:03:53, skipping insertion in model container [2018-11-12 17:03:53,072 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 05:03:36" (2/3) ... [2018-11-12 17:03:53,073 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@602d967c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 05:03:53, skipping insertion in model container [2018-11-12 17:03:53,073 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 05:03:53" (3/3) ... [2018-11-12 17:03:53,075 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem19_label47_false-unreach-call.c [2018-11-12 17:03:53,085 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-12 17:03:53,096 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-11-12 17:03:53,114 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-11-12 17:03:53,173 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-12 17:03:53,174 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-12 17:03:53,174 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-12 17:03:53,174 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-12 17:03:53,174 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-12 17:03:53,174 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-12 17:03:53,175 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-12 17:03:53,175 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-12 17:03:53,241 INFO L276 IsEmpty]: Start isEmpty. Operand 1778 states. [2018-11-12 17:03:53,247 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2018-11-12 17:03:53,247 INFO L367 BasicCegarLoop]: Found error trace [2018-11-12 17:03:53,248 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-12 17:03:53,251 INFO L423 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-12 17:03:53,257 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-12 17:03:53,257 INFO L82 PathProgramCache]: Analyzing trace with hash 1585777530, now seen corresponding path program 1 times [2018-11-12 17:03:53,260 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-12 17:03:53,310 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-12 17:03:53,310 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-12 17:03:53,310 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-12 17:03:53,310 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-12 17:03:53,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-12 17:03:53,658 WARN L179 SmtUtils]: Spent 143.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 4 [2018-11-12 17:03:53,764 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 17:03:53,767 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-12 17:03:53,767 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-11-12 17:03:53,767 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-12 17:03:53,774 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-11-12 17:03:53,791 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-12 17:03:53,792 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-12 17:03:53,794 INFO L87 Difference]: Start difference. First operand 1778 states. Second operand 3 states. [2018-11-12 17:04:07,965 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-12 17:04:07,965 INFO L93 Difference]: Finished difference Result 5034 states and 9499 transitions. [2018-11-12 17:04:07,966 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-12 17:04:07,968 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 15 [2018-11-12 17:04:07,969 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-12 17:04:08,022 INFO L225 Difference]: With dead ends: 5034 [2018-11-12 17:04:08,022 INFO L226 Difference]: Without dead ends: 3254 [2018-11-12 17:04:08,042 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 17:04:08,069 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3254 states. [2018-11-12 17:04:08,229 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3254 to 3207. [2018-11-12 17:04:08,231 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3207 states. [2018-11-12 17:04:08,251 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3207 states to 3207 states and 5994 transitions. [2018-11-12 17:04:08,253 INFO L78 Accepts]: Start accepts. Automaton has 3207 states and 5994 transitions. Word has length 15 [2018-11-12 17:04:08,254 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-12 17:04:08,254 INFO L480 AbstractCegarLoop]: Abstraction has 3207 states and 5994 transitions. [2018-11-12 17:04:08,254 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-11-12 17:04:08,254 INFO L276 IsEmpty]: Start isEmpty. Operand 3207 states and 5994 transitions. [2018-11-12 17:04:08,260 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2018-11-12 17:04:08,260 INFO L367 BasicCegarLoop]: Found error trace [2018-11-12 17:04:08,261 INFO L375 BasicCegarLoop]: trace histogram [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] [2018-11-12 17:04:08,261 INFO L423 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-12 17:04:08,261 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-12 17:04:08,262 INFO L82 PathProgramCache]: Analyzing trace with hash -496581386, now seen corresponding path program 1 times [2018-11-12 17:04:08,262 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-12 17:04:08,264 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-12 17:04:08,264 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-12 17:04:08,264 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-12 17:04:08,265 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-12 17:04:08,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-12 17:04:08,896 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-12 17:04:08,897 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-12 17:04:08,897 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-11-12 17:04:08,897 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-12 17:04:08,899 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-11-12 17:04:08,899 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-11-12 17:04:08,899 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2018-11-12 17:04:08,901 INFO L87 Difference]: Start difference. First operand 3207 states and 5994 transitions. Second operand 6 states. [2018-11-12 17:04:28,384 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-12 17:04:28,384 INFO L93 Difference]: Finished difference Result 9586 states and 17981 transitions. [2018-11-12 17:04:28,384 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2018-11-12 17:04:28,385 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 88 [2018-11-12 17:04:28,385 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-12 17:04:28,436 INFO L225 Difference]: With dead ends: 9586 [2018-11-12 17:04:28,436 INFO L226 Difference]: Without dead ends: 6385 [2018-11-12 17:04:28,447 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=32, Invalid=58, Unknown=0, NotChecked=0, Total=90 [2018-11-12 17:04:28,455 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6385 states. [2018-11-12 17:04:28,649 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6385 to 6261. [2018-11-12 17:04:28,649 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6261 states. [2018-11-12 17:04:28,673 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6261 states to 6261 states and 11290 transitions. [2018-11-12 17:04:28,673 INFO L78 Accepts]: Start accepts. Automaton has 6261 states and 11290 transitions. Word has length 88 [2018-11-12 17:04:28,676 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-12 17:04:28,676 INFO L480 AbstractCegarLoop]: Abstraction has 6261 states and 11290 transitions. [2018-11-12 17:04:28,676 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-11-12 17:04:28,676 INFO L276 IsEmpty]: Start isEmpty. Operand 6261 states and 11290 transitions. [2018-11-12 17:04:28,682 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2018-11-12 17:04:28,685 INFO L367 BasicCegarLoop]: Found error trace [2018-11-12 17:04:28,686 INFO L375 BasicCegarLoop]: trace histogram [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] [2018-11-12 17:04:28,686 INFO L423 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-12 17:04:28,686 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-12 17:04:28,686 INFO L82 PathProgramCache]: Analyzing trace with hash -805674407, now seen corresponding path program 1 times [2018-11-12 17:04:28,687 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-12 17:04:28,687 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-12 17:04:28,688 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-12 17:04:28,688 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-12 17:04:28,688 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-12 17:04:28,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-12 17:04:28,872 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-12 17:04:28,872 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-12 17:04:28,873 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-11-12 17:04:28,873 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-12 17:04:28,873 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-11-12 17:04:28,874 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-11-12 17:04:28,874 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-11-12 17:04:28,874 INFO L87 Difference]: Start difference. First operand 6261 states and 11290 transitions. Second operand 5 states. [2018-11-12 17:04:45,984 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-12 17:04:45,984 INFO L93 Difference]: Finished difference Result 18898 states and 34251 transitions. [2018-11-12 17:04:45,988 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-11-12 17:04:45,988 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 102 [2018-11-12 17:04:45,989 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-12 17:04:46,059 INFO L225 Difference]: With dead ends: 18898 [2018-11-12 17:04:46,059 INFO L226 Difference]: Without dead ends: 12643 [2018-11-12 17:04:46,080 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2018-11-12 17:04:46,093 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12643 states. [2018-11-12 17:04:46,356 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12643 to 12378. [2018-11-12 17:04:46,356 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12378 states. [2018-11-12 17:04:46,385 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12378 states to 12378 states and 18858 transitions. [2018-11-12 17:04:46,386 INFO L78 Accepts]: Start accepts. Automaton has 12378 states and 18858 transitions. Word has length 102 [2018-11-12 17:04:46,386 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-12 17:04:46,386 INFO L480 AbstractCegarLoop]: Abstraction has 12378 states and 18858 transitions. [2018-11-12 17:04:46,386 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-11-12 17:04:46,387 INFO L276 IsEmpty]: Start isEmpty. Operand 12378 states and 18858 transitions. [2018-11-12 17:04:46,391 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 193 [2018-11-12 17:04:46,392 INFO L367 BasicCegarLoop]: Found error trace [2018-11-12 17:04:46,392 INFO L375 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-12 17:04:46,392 INFO L423 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-12 17:04:46,393 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-12 17:04:46,393 INFO L82 PathProgramCache]: Analyzing trace with hash 530660719, now seen corresponding path program 1 times [2018-11-12 17:04:46,393 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-12 17:04:46,394 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-12 17:04:46,394 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-12 17:04:46,394 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-12 17:04:46,394 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-12 17:04:46,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-12 17:04:46,905 INFO L134 CoverageAnalysis]: Checked inductivity of 103 backedges. 16 proven. 82 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2018-11-12 17:04:46,905 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-12 17:04:46,905 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-12 17:04:46,906 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 193 with the following transitions: [2018-11-12 17:04:46,910 INFO L202 CegarAbsIntRunner]: [0], [1], [5227], [5234], [5242], [5246], [5248], [5251], [5259], [5267], [5275], [5283], [5291], [5299], [5307], [5315], [5323], [5331], [5339], [5347], [5355], [5363], [5371], [5379], [5387], [5395], [5403], [5411], [5419], [5427], [5435], [5443], [5451], [5459], [5467], [5475], [5483], [5491], [5499], [5507], [5515], [5523], [5531], [5539], [5547], [5555], [5563], [5571], [5579], [5587], [5595], [5603], [5611], [5619], [5627], [5635], [5643], [5651], [5659], [5667], [5675], [5683], [5691], [5699], [5707], [5715], [5727], [5731], [5742], [5746], [5750], [5754], [5758], [5762], [5766], [5770], [5774], [5778], [5782], [5786], [5797], [5808], [5819], [5822], [5823], [5827], [5838], [5841], [6802], [6806], [6810], [6816], [6820], [6822], [6837], [6838], [6839], [6841], [6842] [2018-11-12 17:04:46,967 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, IntervalDomain] [2018-11-12 17:04:46,967 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-12 17:04:47,489 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-11-12 17:04:47,490 INFO L272 AbstractInterpreter]: Visited 95 different actions 95 times. Never merged. Never widened. Performed 902 root evaluator evaluations with a maximum evaluation depth of 4. Performed 902 inverse root evaluator evaluations with a maximum inverse evaluation depth of 4. Never found a fixpoint. Largest state had 26 variables. [2018-11-12 17:04:47,516 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-12 17:04:47,516 INFO L398 sIntCurrentIteration]: Generating AbsInt predicates [2018-11-12 17:04:47,984 INFO L227 lantSequenceWeakener]: Weakened 183 states. On average, predicates are now at 74.83% of their original sizes. [2018-11-12 17:04:47,984 INFO L413 sIntCurrentIteration]: Unifying AI predicates [2018-11-12 17:04:48,123 INFO L415 sIntCurrentIteration]: We unified 191 AI predicates to 191 [2018-11-12 17:04:48,123 INFO L424 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-11-12 17:04:48,124 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-11-12 17:04:48,125 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [6] total 11 [2018-11-12 17:04:48,125 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-12 17:04:48,125 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-11-12 17:04:48,126 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-11-12 17:04:48,126 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2018-11-12 17:04:48,126 INFO L87 Difference]: Start difference. First operand 12378 states and 18858 transitions. Second operand 7 states. [2018-11-12 17:04:53,358 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-11-12 17:06:24,350 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-12 17:06:24,350 INFO L93 Difference]: Finished difference Result 26142 states and 39309 transitions. [2018-11-12 17:06:24,351 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-11-12 17:06:24,351 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 192 [2018-11-12 17:06:24,351 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-12 17:06:24,387 INFO L225 Difference]: With dead ends: 26142 [2018-11-12 17:06:24,388 INFO L226 Difference]: Without dead ends: 13770 [2018-11-12 17:06:24,412 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 192 GetRequests, 186 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=21, Invalid=35, Unknown=0, NotChecked=0, Total=56 [2018-11-12 17:06:24,425 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13770 states. [2018-11-12 17:06:24,653 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13770 to 13768. [2018-11-12 17:06:24,654 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13768 states. [2018-11-12 17:06:24,686 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13768 states to 13768 states and 20262 transitions. [2018-11-12 17:06:24,687 INFO L78 Accepts]: Start accepts. Automaton has 13768 states and 20262 transitions. Word has length 192 [2018-11-12 17:06:24,687 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-12 17:06:24,688 INFO L480 AbstractCegarLoop]: Abstraction has 13768 states and 20262 transitions. [2018-11-12 17:06:24,688 INFO L481 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-11-12 17:06:24,688 INFO L276 IsEmpty]: Start isEmpty. Operand 13768 states and 20262 transitions. [2018-11-12 17:06:24,698 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 433 [2018-11-12 17:06:24,698 INFO L367 BasicCegarLoop]: Found error trace [2018-11-12 17:06:24,699 INFO L375 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 17:06:24,699 INFO L423 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-12 17:06:24,700 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-12 17:06:24,700 INFO L82 PathProgramCache]: Analyzing trace with hash -1013220305, now seen corresponding path program 1 times [2018-11-12 17:06:24,700 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-12 17:06:24,701 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-12 17:06:24,701 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-12 17:06:24,702 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-12 17:06:24,702 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-12 17:06:24,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-12 17:06:26,220 INFO L134 CoverageAnalysis]: Checked inductivity of 288 backedges. 30 proven. 166 refuted. 0 times theorem prover too weak. 92 trivial. 0 not checked. [2018-11-12 17:06:26,221 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-12 17:06:26,221 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-12 17:06:26,221 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 433 with the following transitions: [2018-11-12 17:06:26,223 INFO L202 CegarAbsIntRunner]: [0], [1], [5227], [5234], [5242], [5246], [5248], [5251], [5259], [5267], [5275], [5283], [5291], [5299], [5307], [5315], [5323], [5331], [5339], [5347], [5355], [5363], [5371], [5379], [5387], [5395], [5403], [5411], [5419], [5427], [5435], [5443], [5451], [5459], [5467], [5475], [5483], [5491], [5499], [5507], [5515], [5523], [5531], [5539], [5547], [5555], [5563], [5571], [5579], [5587], [5595], [5603], [5611], [5619], [5627], [5635], [5643], [5651], [5659], [5667], [5675], [5683], [5691], [5699], [5707], [5715], [5727], [5731], [5742], [5746], [5750], [5754], [5758], [5762], [5766], [5770], [5774], [5778], [5782], [5786], [5797], [5808], [5819], [5822], [5823], [5827], [5838], [5841], [5842], [5846], [5850], [5854], [5858], [5862], [5866], [5870], [5874], [5878], [5882], [5886], [5890], [5894], [5898], [5902], [5906], [5910], [5914], [5918], [5922], [5926], [5930], [5934], [5938], [5942], [5946], [5950], [5954], [5958], [5962], [5966], [5977], [5981], [5985], [5996], [6000], [6004], [6008], [6012], [6016], [6020], [6024], [6028], [6032], [6036], [6040], [6051], [6055], [6059], [6063], [6067], [6071], [6075], [6079], [6083], [6087], [6091], [6102], [6106], [6110], [6121], [6125], [6129], [6140], [6144], [6148], [6152], [6156], [6160], [6164], [6168], [6172], [6176], [6180], [6184], [6188], [6192], [6196], [6200], [6204], [6208], [6212], [6216], [6220], [6224], [6228], [6232], [6236], [6240], [6251], [6255], [6259], [6263], [6267], [6278], [6282], [6286], [6290], [6294], [6298], [6302], [6306], [6310], [6314], [6325], [6329], [6333], [6344], [6348], [6352], [6356], [6360], [6371], [6375], [6379], [6383], [6387], [6391], [6402], [6413], [6417], [6421], [6425], [6429], [6440], [6444], [6455], [6459], [6463], [6467], [6471], [6475], [6486], [6490], [6494], [6498], [6502], [6506], [6510], [6514], [6525], [6529], [6533], [6537], [6541], [6545], [6549], [6553], [6557], [6560], [6802], [6806], [6810], [6816], [6820], [6822], [6837], [6838], [6839], [6841], [6842] [2018-11-12 17:06:26,244 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, IntervalDomain] [2018-11-12 17:06:26,244 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-12 17:06:27,078 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-11-12 17:06:27,079 INFO L272 AbstractInterpreter]: Visited 249 different actions 491 times. Merged at 4 different actions 4 times. Never widened. Performed 9051 root evaluator evaluations with a maximum evaluation depth of 6. Performed 9051 inverse root evaluator evaluations with a maximum inverse evaluation depth of 6. Found 1 fixpoints after 1 different actions. Largest state had 26 variables. [2018-11-12 17:06:27,118 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-12 17:06:27,119 INFO L398 sIntCurrentIteration]: Generating AbsInt predicates [2018-11-12 17:06:28,206 INFO L227 lantSequenceWeakener]: Weakened 132 states. On average, predicates are now at 75.17% of their original sizes. [2018-11-12 17:06:28,207 INFO L413 sIntCurrentIteration]: Unifying AI predicates [2018-11-12 17:06:30,071 INFO L415 sIntCurrentIteration]: We unified 431 AI predicates to 431 [2018-11-12 17:06:30,071 INFO L424 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-11-12 17:06:30,071 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-11-12 17:06:30,072 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [30] imperfect sequences [5] total 33 [2018-11-12 17:06:30,072 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-12 17:06:30,073 INFO L459 AbstractCegarLoop]: Interpolant automaton has 30 states [2018-11-12 17:06:30,073 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2018-11-12 17:06:30,074 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=180, Invalid=690, Unknown=0, NotChecked=0, Total=870 [2018-11-12 17:06:30,074 INFO L87 Difference]: Start difference. First operand 13768 states and 20262 transitions. Second operand 30 states. [2018-11-12 17:06:45,358 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. Received shutdown request... [2018-11-12 17:06:56,753 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2018-11-12 17:06:56,753 WARN L549 AbstractCegarLoop]: Verification canceled [2018-11-12 17:06:56,759 WARN L205 ceAbstractionStarter]: Timeout [2018-11-12 17:06:56,760 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 12.11 05:06:56 BoogieIcfgContainer [2018-11-12 17:06:56,760 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-11-12 17:06:56,761 INFO L168 Benchmark]: Toolchain (without parser) took 203518.29 ms. Allocated memory was 1.5 GB in the beginning and 5.9 GB in the end (delta: 4.4 GB). Free memory was 1.4 GB in the beginning and 2.4 GB in the end (delta: -970.9 MB). Peak memory consumption was 3.4 GB. Max. memory is 7.1 GB. [2018-11-12 17:06:56,762 INFO L168 Benchmark]: CDTParser took 0.20 ms. Allocated memory is still 1.5 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-11-12 17:06:56,762 INFO L168 Benchmark]: CACSL2BoogieTranslator took 3273.37 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.0 GB in the end (delta: 392.7 MB). Peak memory consumption was 392.7 MB. Max. memory is 7.1 GB. [2018-11-12 17:06:56,763 INFO L168 Benchmark]: Boogie Procedure Inliner took 512.37 ms. Allocated memory was 1.5 GB in the beginning and 2.4 GB in the end (delta: 871.9 MB). Free memory was 1.0 GB in the beginning and 2.3 GB in the end (delta: -1.3 GB). Peak memory consumption was 98.8 MB. Max. memory is 7.1 GB. [2018-11-12 17:06:56,764 INFO L168 Benchmark]: Boogie Preprocessor took 410.84 ms. Allocated memory is still 2.4 GB. Free memory was 2.3 GB in the beginning and 2.3 GB in the end (delta: 63.3 MB). Peak memory consumption was 63.3 MB. Max. memory is 7.1 GB. [2018-11-12 17:06:56,765 INFO L168 Benchmark]: RCFGBuilder took 15623.29 ms. Allocated memory was 2.4 GB in the beginning and 2.6 GB in the end (delta: 134.7 MB). Free memory was 2.3 GB in the beginning and 1.7 GB in the end (delta: 525.6 MB). Peak memory consumption was 660.3 MB. Max. memory is 7.1 GB. [2018-11-12 17:06:56,766 INFO L168 Benchmark]: TraceAbstraction took 183692.64 ms. Allocated memory was 2.6 GB in the beginning and 5.9 GB in the end (delta: 3.4 GB). Free memory was 1.7 GB in the beginning and 2.4 GB in the end (delta: -645.3 MB). Peak memory consumption was 2.7 GB. Max. memory is 7.1 GB. [2018-11-12 17:06:56,772 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20 ms. Allocated memory is still 1.5 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 3273.37 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.0 GB in the end (delta: 392.7 MB). Peak memory consumption was 392.7 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 512.37 ms. Allocated memory was 1.5 GB in the beginning and 2.4 GB in the end (delta: 871.9 MB). Free memory was 1.0 GB in the beginning and 2.3 GB in the end (delta: -1.3 GB). Peak memory consumption was 98.8 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 410.84 ms. Allocated memory is still 2.4 GB. Free memory was 2.3 GB in the beginning and 2.3 GB in the end (delta: 63.3 MB). Peak memory consumption was 63.3 MB. Max. memory is 7.1 GB. * RCFGBuilder took 15623.29 ms. Allocated memory was 2.4 GB in the beginning and 2.6 GB in the end (delta: 134.7 MB). Free memory was 2.3 GB in the beginning and 1.7 GB in the end (delta: 525.6 MB). Peak memory consumption was 660.3 MB. Max. memory is 7.1 GB. * TraceAbstraction took 183692.64 ms. Allocated memory was 2.6 GB in the beginning and 5.9 GB in the end (delta: 3.4 GB). Free memory was 1.7 GB in the beginning and 2.4 GB in the end (delta: -645.3 MB). Peak memory consumption was 2.7 GB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResultAtElement [Line: 40]: Timeout (TraceAbstraction) Unable to prove that call of __VERIFIER_error() unreachable (line 40). Cancelled while BasicCegarLoop was constructing difference of abstraction (13768states) and FLOYD_HOARE automaton (currently 22 states, 30 states before enhancement),while ReachableStatesComputation was computing reachable states (3662 states constructedinput type IntersectNwa). - StatisticsResult: Ultimate Automizer benchmark data CFG has 9 procedures, 1778 locations, 1 error locations. TIMEOUT Result, 183.5s OverallTime, 5 OverallIterations, 4 TraceHistogramMax, 173.9s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 3721 SDtfs, 28621 SDslu, 3574 SDs, 0 SdLazy, 34549 SolverSat, 5867 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 97.5s Time, PredicateUnifierStatistics: 4 DeclaredPredicates, 661 GetRequests, 597 SyntacticMatches, 2 SemanticMatches, 62 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 526 ImplicationChecksByTransitivity, 3.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=13768occurred in iteration=4, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 1.5s AbstIntTime, 2 AbstIntIterations, 2 AbstIntStrong, 0.9976971730445796 AbsIntWeakeningRatio, 0.09646302250803858 AbsIntAvgWeakeningVarsNumRemoved, 8.868167202572348 AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.9s AutomataMinimizationTime, 4 MinimizatonAttempts, 438 StatesRemovedByMinimization, 4 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 1.9s InterpolantComputationTime, 829 NumberOfCodeBlocks, 829 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 824 ConstructedInterpolants, 0 QuantifiedInterpolants, 739882 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 5 InterpolantComputations, 3 PerfectInterpolantSequences, 159/407 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Completed graceful shutdown