java -Xmx8000000000 -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -s ../../../trunk/examples/settings/default/taipan/svcomp-Reach-64bit-Taipan_Default-EXP.epf -i ../../../trunk/examples/svcomp/eca-rers2012/Problem03_label06_true-unreach-call.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-df4b876 [2018-11-07 07:10:48,283 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-07 07:10:48,286 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-07 07:10:48,308 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-07 07:10:48,308 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-07 07:10:48,309 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-07 07:10:48,314 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-07 07:10:48,316 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-07 07:10:48,319 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-07 07:10:48,319 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-07 07:10:48,321 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-07 07:10:48,321 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-07 07:10:48,322 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-07 07:10:48,323 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-07 07:10:48,324 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-07 07:10:48,325 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-07 07:10:48,326 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-07 07:10:48,328 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-07 07:10:48,330 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-07 07:10:48,331 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-07 07:10:48,333 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-07 07:10:48,334 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-07 07:10:48,336 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-07 07:10:48,337 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-07 07:10:48,337 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-07 07:10:48,338 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-07 07:10:48,339 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-07 07:10:48,340 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-07 07:10:48,341 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-07 07:10:48,342 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-07 07:10:48,342 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-07 07:10:48,343 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-07 07:10:48,343 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-07 07:10:48,343 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-07 07:10:48,345 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-07 07:10:48,345 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-07 07:10:48,346 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/taipan/svcomp-Reach-64bit-Taipan_Default-EXP.epf [2018-11-07 07:10:48,363 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-07 07:10:48,363 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-07 07:10:48,364 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-07 07:10:48,364 INFO L133 SettingsManager]: * User list type=DISABLED [2018-11-07 07:10:48,365 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-11-07 07:10:48,365 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-11-07 07:10:48,365 INFO L133 SettingsManager]: * Explicit value domain=true [2018-11-07 07:10:48,365 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-11-07 07:10:48,366 INFO L133 SettingsManager]: * Octagon Domain=false [2018-11-07 07:10:48,366 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-11-07 07:10:48,366 INFO L133 SettingsManager]: * Log string format=TERM [2018-11-07 07:10:48,366 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-11-07 07:10:48,366 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-11-07 07:10:48,367 INFO L133 SettingsManager]: * Interval Domain=false [2018-11-07 07:10:48,367 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-07 07:10:48,368 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-07 07:10:48,368 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-07 07:10:48,368 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-07 07:10:48,368 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-07 07:10:48,368 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-07 07:10:48,369 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-07 07:10:48,369 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-07 07:10:48,369 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-07 07:10:48,369 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-07 07:10:48,369 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-07 07:10:48,370 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-07 07:10:48,370 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-07 07:10:48,370 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-07 07:10:48,370 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-07 07:10:48,371 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-07 07:10:48,371 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-11-07 07:10:48,371 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-07 07:10:48,371 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-11-07 07:10:48,371 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-11-07 07:10:48,372 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-11-07 07:10:48,372 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-11-07 07:10:48,416 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-07 07:10:48,431 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-07 07:10:48,434 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-07 07:10:48,435 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-07 07:10:48,435 INFO L276 PluginConnector]: CDTParser initialized [2018-11-07 07:10:48,436 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem03_label06_true-unreach-call.c [2018-11-07 07:10:48,500 INFO L218 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2336e56d1/b4c177f3d707492c911bb9a9439cbf56/FLAGdd9564be9 [2018-11-07 07:10:49,184 INFO L298 CDTParser]: Found 1 translation units. [2018-11-07 07:10:49,185 INFO L158 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem03_label06_true-unreach-call.c [2018-11-07 07:10:49,204 INFO L346 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2336e56d1/b4c177f3d707492c911bb9a9439cbf56/FLAGdd9564be9 [2018-11-07 07:10:49,220 INFO L354 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2336e56d1/b4c177f3d707492c911bb9a9439cbf56 [2018-11-07 07:10:49,231 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-07 07:10:49,233 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-11-07 07:10:49,235 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-07 07:10:49,235 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-07 07:10:49,239 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-07 07:10:49,240 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 07:10:49" (1/1) ... [2018-11-07 07:10:49,244 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@49b7df7e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 07:10:49, skipping insertion in model container [2018-11-07 07:10:49,244 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 07:10:49" (1/1) ... [2018-11-07 07:10:49,255 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-07 07:10:49,335 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-11-07 07:10:50,142 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-11-07 07:10:50,149 INFO L189 MainTranslator]: Completed pre-run [2018-11-07 07:10:50,498 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-11-07 07:10:50,524 INFO L193 MainTranslator]: Completed translation [2018-11-07 07:10:50,524 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 07:10:50 WrapperNode [2018-11-07 07:10:50,524 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-07 07:10:50,526 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-07 07:10:50,526 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-07 07:10:50,526 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-07 07:10:50,537 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 07:10:50" (1/1) ... [2018-11-07 07:10:50,719 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 07:10:50" (1/1) ... [2018-11-07 07:10:50,738 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-07 07:10:50,738 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-07 07:10:50,738 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-07 07:10:50,738 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-07 07:10:50,753 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 07:10:50" (1/1) ... [2018-11-07 07:10:50,754 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 07:10:50" (1/1) ... [2018-11-07 07:10:50,762 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 07:10:50" (1/1) ... [2018-11-07 07:10:50,763 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 07:10:50" (1/1) ... [2018-11-07 07:10:50,816 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 07:10:50" (1/1) ... [2018-11-07 07:10:50,843 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 07:10:50" (1/1) ... [2018-11-07 07:10:50,863 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 07:10:50" (1/1) ... [2018-11-07 07:10:50,879 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-07 07:10:50,880 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-07 07:10:50,880 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-07 07:10:50,881 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-07 07:10:50,881 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 07:10:50" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-07 07:10:50,951 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2018-11-07 07:10:50,952 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-07 07:10:50,952 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-07 07:10:50,952 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2018-11-07 07:10:50,953 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2018-11-07 07:10:50,954 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-07 07:10:50,954 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-07 07:10:50,954 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-07 07:10:50,954 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-07 07:10:55,583 INFO L276 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-07 07:10:55,585 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 07:10:55 BoogieIcfgContainer [2018-11-07 07:10:55,585 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-07 07:10:55,586 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-07 07:10:55,586 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-07 07:10:55,590 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-07 07:10:55,591 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.11 07:10:49" (1/3) ... [2018-11-07 07:10:55,592 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@f177fa8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 07:10:55, skipping insertion in model container [2018-11-07 07:10:55,592 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 07:10:50" (2/3) ... [2018-11-07 07:10:55,592 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@f177fa8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 07:10:55, skipping insertion in model container [2018-11-07 07:10:55,593 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 07:10:55" (3/3) ... [2018-11-07 07:10:55,595 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem03_label06_true-unreach-call.c [2018-11-07 07:10:55,607 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-07 07:10:55,621 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-11-07 07:10:55,641 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-11-07 07:10:55,686 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-07 07:10:55,686 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-07 07:10:55,686 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-07 07:10:55,687 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-07 07:10:55,687 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-07 07:10:55,687 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-07 07:10:55,687 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-07 07:10:55,688 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-07 07:10:55,718 INFO L276 IsEmpty]: Start isEmpty. Operand 312 states. [2018-11-07 07:10:55,743 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 177 [2018-11-07 07:10:55,744 INFO L367 BasicCegarLoop]: Found error trace [2018-11-07 07:10:55,745 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-07 07:10:55,747 INFO L423 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-07 07:10:55,753 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 07:10:55,753 INFO L82 PathProgramCache]: Analyzing trace with hash 1227747913, now seen corresponding path program 1 times [2018-11-07 07:10:55,756 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-07 07:10:55,803 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 07:10:55,803 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-07 07:10:55,803 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 07:10:55,803 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-07 07:10:56,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-07 07:10:56,851 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-07 07:10:56,853 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-07 07:10:56,854 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-11-07 07:10:56,854 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-07 07:10:56,861 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-11-07 07:10:56,878 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-07 07:10:56,879 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-07 07:10:56,881 INFO L87 Difference]: Start difference. First operand 312 states. Second operand 3 states. [2018-11-07 07:10:59,153 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-07 07:10:59,153 INFO L93 Difference]: Finished difference Result 848 states and 1491 transitions. [2018-11-07 07:10:59,154 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-07 07:10:59,155 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 176 [2018-11-07 07:10:59,156 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-07 07:10:59,177 INFO L225 Difference]: With dead ends: 848 [2018-11-07 07:10:59,178 INFO L226 Difference]: Without dead ends: 534 [2018-11-07 07:10:59,185 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-07 07:10:59,207 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 534 states. [2018-11-07 07:10:59,267 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 534 to 532. [2018-11-07 07:10:59,271 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 532 states. [2018-11-07 07:10:59,278 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 532 states to 532 states and 867 transitions. [2018-11-07 07:10:59,280 INFO L78 Accepts]: Start accepts. Automaton has 532 states and 867 transitions. Word has length 176 [2018-11-07 07:10:59,281 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-07 07:10:59,282 INFO L480 AbstractCegarLoop]: Abstraction has 532 states and 867 transitions. [2018-11-07 07:10:59,282 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-11-07 07:10:59,282 INFO L276 IsEmpty]: Start isEmpty. Operand 532 states and 867 transitions. [2018-11-07 07:10:59,291 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 190 [2018-11-07 07:10:59,291 INFO L367 BasicCegarLoop]: Found error trace [2018-11-07 07:10:59,292 INFO L375 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-07 07:10:59,292 INFO L423 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-07 07:10:59,293 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 07:10:59,293 INFO L82 PathProgramCache]: Analyzing trace with hash -602299443, now seen corresponding path program 1 times [2018-11-07 07:10:59,293 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-07 07:10:59,294 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 07:10:59,295 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-07 07:10:59,295 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 07:10:59,295 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-07 07:10:59,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-07 07:10:59,761 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-07 07:10:59,762 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-07 07:10:59,762 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-11-07 07:10:59,762 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-07 07:10:59,766 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-11-07 07:10:59,766 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-07 07:10:59,766 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-07 07:10:59,767 INFO L87 Difference]: Start difference. First operand 532 states and 867 transitions. Second operand 3 states. [2018-11-07 07:11:01,762 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-07 07:11:01,762 INFO L93 Difference]: Finished difference Result 1493 states and 2512 transitions. [2018-11-07 07:11:01,762 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-07 07:11:01,763 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 189 [2018-11-07 07:11:01,763 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-07 07:11:01,770 INFO L225 Difference]: With dead ends: 1493 [2018-11-07 07:11:01,770 INFO L226 Difference]: Without dead ends: 967 [2018-11-07 07:11:01,774 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-07 07:11:01,775 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 967 states. [2018-11-07 07:11:01,821 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 967 to 951. [2018-11-07 07:11:01,821 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 951 states. [2018-11-07 07:11:01,830 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 951 states to 951 states and 1540 transitions. [2018-11-07 07:11:01,830 INFO L78 Accepts]: Start accepts. Automaton has 951 states and 1540 transitions. Word has length 189 [2018-11-07 07:11:01,830 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-07 07:11:01,831 INFO L480 AbstractCegarLoop]: Abstraction has 951 states and 1540 transitions. [2018-11-07 07:11:01,831 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-11-07 07:11:01,831 INFO L276 IsEmpty]: Start isEmpty. Operand 951 states and 1540 transitions. [2018-11-07 07:11:01,838 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 205 [2018-11-07 07:11:01,838 INFO L367 BasicCegarLoop]: Found error trace [2018-11-07 07:11:01,838 INFO L375 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-07 07:11:01,839 INFO L423 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-07 07:11:01,839 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 07:11:01,839 INFO L82 PathProgramCache]: Analyzing trace with hash -1117769588, now seen corresponding path program 1 times [2018-11-07 07:11:01,839 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-07 07:11:01,841 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 07:11:01,841 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-07 07:11:01,841 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 07:11:01,841 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-07 07:11:01,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-07 07:11:02,143 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 25 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-07 07:11:02,143 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-07 07:11:02,143 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-11-07 07:11:02,144 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-07 07:11:02,144 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-11-07 07:11:02,145 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-11-07 07:11:02,145 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-11-07 07:11:02,145 INFO L87 Difference]: Start difference. First operand 951 states and 1540 transitions. Second operand 6 states. [2018-11-07 07:11:06,214 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-07 07:11:06,215 INFO L93 Difference]: Finished difference Result 2784 states and 4694 transitions. [2018-11-07 07:11:06,216 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-11-07 07:11:06,216 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 204 [2018-11-07 07:11:06,216 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-07 07:11:06,238 INFO L225 Difference]: With dead ends: 2784 [2018-11-07 07:11:06,238 INFO L226 Difference]: Without dead ends: 1839 [2018-11-07 07:11:06,242 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2018-11-07 07:11:06,244 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1839 states. [2018-11-07 07:11:06,336 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1839 to 1809. [2018-11-07 07:11:06,336 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1809 states. [2018-11-07 07:11:06,345 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1809 states to 1809 states and 2782 transitions. [2018-11-07 07:11:06,349 INFO L78 Accepts]: Start accepts. Automaton has 1809 states and 2782 transitions. Word has length 204 [2018-11-07 07:11:06,349 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-07 07:11:06,350 INFO L480 AbstractCegarLoop]: Abstraction has 1809 states and 2782 transitions. [2018-11-07 07:11:06,350 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-11-07 07:11:06,350 INFO L276 IsEmpty]: Start isEmpty. Operand 1809 states and 2782 transitions. [2018-11-07 07:11:06,359 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 224 [2018-11-07 07:11:06,359 INFO L367 BasicCegarLoop]: Found error trace [2018-11-07 07:11:06,360 INFO L375 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-07 07:11:06,360 INFO L423 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-07 07:11:06,360 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 07:11:06,360 INFO L82 PathProgramCache]: Analyzing trace with hash -356667913, now seen corresponding path program 1 times [2018-11-07 07:11:06,361 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-07 07:11:06,362 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 07:11:06,362 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-07 07:11:06,362 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 07:11:06,362 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-07 07:11:06,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-07 07:11:06,616 INFO L134 CoverageAnalysis]: Checked inductivity of 53 backedges. 51 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-07 07:11:06,617 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-07 07:11:06,617 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-07 07:11:06,618 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 224 with the following transitions: [2018-11-07 07:11:06,620 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [13], [17], [21], [24], [25], [29], [33], [37], [41], [45], [49], [53], [57], [61], [65], [76], [80], [84], [88], [92], [96], [100], [104], [108], [112], [116], [120], [123], [124], [128], [132], [136], [140], [144], [148], [159], [163], [167], [171], [175], [179], [183], [187], [191], [202], [206], [210], [221], [225], [229], [233], [237], [241], [245], [249], [253], [257], [261], [265], [269], [273], [277], [281], [285], [289], [293], [297], [308], [312], [323], [327], [331], [335], [339], [343], [347], [351], [355], [359], [363], [367], [371], [375], [379], [383], [394], [398], [402], [406], [417], [421], [425], [429], [433], [437], [441], [445], [449], [453], [457], [461], [472], [476], [480], [484], [488], [492], [496], [500], [504], [508], [512], [516], [520], [524], [528], [532], [536], [540], [551], [555], [559], [570], [574], [585], [589], [593], [597], [601], [605], [609], [613], [624], [635], [646], [650], [654], [658], [662], [666], [673], [681], [689], [697], [705], [713], [721], [729], [737], [745], [753], [761], [769], [777], [785], [793], [801], [809], [817], [825], [833], [841], [849], [857], [865], [869], [871], [1157], [1161], [1165], [1171], [1175], [1177], [1182], [1183], [1184], [1186], [1187] [2018-11-07 07:11:06,684 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-11-07 07:11:06,684 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-07 07:11:08,452 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-11-07 07:11:08,454 INFO L272 AbstractInterpreter]: Visited 180 different actions 354 times. Merged at 5 different actions 5 times. Never widened. Found 1 fixpoints after 1 different actions. Largest state had 88 variables. [2018-11-07 07:11:08,500 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 07:11:08,500 INFO L398 sIntCurrentIteration]: Generating AbsInt predicates [2018-11-07 07:11:09,510 INFO L227 lantSequenceWeakener]: Weakened 220 states. On average, predicates are now at 72.61% of their original sizes. [2018-11-07 07:11:09,511 INFO L413 sIntCurrentIteration]: Unifying AI predicates [2018-11-07 07:11:10,882 INFO L415 sIntCurrentIteration]: We unified 222 AI predicates to 222 [2018-11-07 07:11:10,882 INFO L424 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-11-07 07:11:10,883 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-11-07 07:11:10,884 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [20] imperfect sequences [6] total 24 [2018-11-07 07:11:10,884 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-07 07:11:10,885 INFO L459 AbstractCegarLoop]: Interpolant automaton has 20 states [2018-11-07 07:11:10,885 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2018-11-07 07:11:10,885 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=78, Invalid=302, Unknown=0, NotChecked=0, Total=380 [2018-11-07 07:11:10,886 INFO L87 Difference]: Start difference. First operand 1809 states and 2782 transitions. Second operand 20 states. [2018-11-07 07:11:42,426 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-07 07:11:42,427 INFO L93 Difference]: Finished difference Result 4034 states and 6121 transitions. [2018-11-07 07:11:42,427 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2018-11-07 07:11:42,427 INFO L78 Accepts]: Start accepts. Automaton has 20 states. Word has length 223 [2018-11-07 07:11:42,428 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-07 07:11:42,450 INFO L225 Difference]: With dead ends: 4034 [2018-11-07 07:11:42,450 INFO L226 Difference]: Without dead ends: 2231 [2018-11-07 07:11:42,457 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 231 GetRequests, 204 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 148 ImplicationChecksByTransitivity, 2.1s TimeCoverageRelationStatistics Valid=181, Invalid=631, Unknown=0, NotChecked=0, Total=812 [2018-11-07 07:11:42,460 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2231 states. [2018-11-07 07:11:42,527 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2231 to 2228. [2018-11-07 07:11:42,527 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2228 states. [2018-11-07 07:11:42,536 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2228 states to 2228 states and 3229 transitions. [2018-11-07 07:11:42,537 INFO L78 Accepts]: Start accepts. Automaton has 2228 states and 3229 transitions. Word has length 223 [2018-11-07 07:11:42,537 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-07 07:11:42,538 INFO L480 AbstractCegarLoop]: Abstraction has 2228 states and 3229 transitions. [2018-11-07 07:11:42,538 INFO L481 AbstractCegarLoop]: Interpolant automaton has 20 states. [2018-11-07 07:11:42,538 INFO L276 IsEmpty]: Start isEmpty. Operand 2228 states and 3229 transitions. [2018-11-07 07:11:42,547 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 224 [2018-11-07 07:11:42,548 INFO L367 BasicCegarLoop]: Found error trace [2018-11-07 07:11:42,548 INFO L375 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-07 07:11:42,549 INFO L423 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-07 07:11:42,549 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 07:11:42,549 INFO L82 PathProgramCache]: Analyzing trace with hash 1245431112, now seen corresponding path program 1 times [2018-11-07 07:11:42,549 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-07 07:11:42,550 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 07:11:42,551 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-07 07:11:42,551 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 07:11:42,551 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-07 07:11:42,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-07 07:11:42,820 INFO L134 CoverageAnalysis]: Checked inductivity of 61 backedges. 59 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-07 07:11:42,821 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-07 07:11:42,821 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-07 07:11:42,821 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 224 with the following transitions: [2018-11-07 07:11:42,822 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [13], [17], [21], [25], [29], [33], [37], [41], [45], [49], [53], [57], [61], [64], [65], [68], [73], [75], [76], [80], [84], [88], [92], [96], [100], [104], [108], [112], [116], [120], [124], [128], [132], [136], [140], [144], [148], [159], [163], [167], [171], [175], [179], [183], [187], [191], [202], [206], [210], [221], [225], [229], [233], [237], [241], [245], [249], [253], [257], [261], [265], [269], [273], [277], [281], [285], [289], [293], [297], [308], [312], [323], [327], [331], [335], [339], [343], [347], [351], [355], [359], [363], [367], [371], [375], [379], [383], [394], [398], [402], [406], [417], [421], [425], [429], [433], [437], [441], [445], [449], [453], [457], [461], [472], [476], [480], [484], [488], [492], [496], [500], [504], [508], [512], [516], [520], [524], [528], [532], [536], [540], [551], [555], [559], [570], [574], [585], [589], [593], [597], [601], [605], [609], [613], [624], [635], [646], [650], [654], [658], [662], [666], [673], [681], [689], [697], [705], [713], [721], [729], [737], [745], [753], [761], [769], [777], [785], [793], [801], [809], [817], [825], [833], [841], [849], [857], [865], [869], [871], [1157], [1161], [1165], [1171], [1175], [1177], [1182], [1183], [1184], [1186], [1187] [2018-11-07 07:11:42,832 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-11-07 07:11:42,833 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-07 07:11:43,900 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-11-07 07:11:43,901 INFO L272 AbstractInterpreter]: Visited 180 different actions 353 times. Merged at 4 different actions 4 times. Never widened. Found 1 fixpoints after 1 different actions. Largest state had 88 variables. [2018-11-07 07:11:43,907 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 07:11:43,907 INFO L398 sIntCurrentIteration]: Generating AbsInt predicates [2018-11-07 07:11:44,617 INFO L227 lantSequenceWeakener]: Weakened 218 states. On average, predicates are now at 74.76% of their original sizes. [2018-11-07 07:11:44,622 INFO L413 sIntCurrentIteration]: Unifying AI predicates [2018-11-07 07:11:44,991 INFO L415 sIntCurrentIteration]: We unified 222 AI predicates to 222 [2018-11-07 07:11:44,991 INFO L424 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-11-07 07:11:44,991 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-11-07 07:11:44,991 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [15] imperfect sequences [6] total 19 [2018-11-07 07:11:44,992 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-07 07:11:44,992 INFO L459 AbstractCegarLoop]: Interpolant automaton has 15 states [2018-11-07 07:11:44,992 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2018-11-07 07:11:44,993 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=55, Invalid=155, Unknown=0, NotChecked=0, Total=210 [2018-11-07 07:11:44,993 INFO L87 Difference]: Start difference. First operand 2228 states and 3229 transitions. Second operand 15 states. [2018-11-07 07:12:27,660 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-07 07:12:27,661 INFO L93 Difference]: Finished difference Result 5311 states and 7950 transitions. [2018-11-07 07:12:27,661 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2018-11-07 07:12:27,661 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 223 [2018-11-07 07:12:27,662 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-07 07:12:27,678 INFO L225 Difference]: With dead ends: 5311 [2018-11-07 07:12:27,678 INFO L226 Difference]: Without dead ends: 3508 [2018-11-07 07:12:27,685 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 231 GetRequests, 209 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 61 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=140, Invalid=412, Unknown=0, NotChecked=0, Total=552 [2018-11-07 07:12:27,688 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3508 states. [2018-11-07 07:12:27,763 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3508 to 3501. [2018-11-07 07:12:27,764 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3501 states. [2018-11-07 07:12:27,776 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3501 states to 3501 states and 4910 transitions. [2018-11-07 07:12:27,777 INFO L78 Accepts]: Start accepts. Automaton has 3501 states and 4910 transitions. Word has length 223 [2018-11-07 07:12:27,777 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-07 07:12:27,777 INFO L480 AbstractCegarLoop]: Abstraction has 3501 states and 4910 transitions. [2018-11-07 07:12:27,777 INFO L481 AbstractCegarLoop]: Interpolant automaton has 15 states. [2018-11-07 07:12:27,777 INFO L276 IsEmpty]: Start isEmpty. Operand 3501 states and 4910 transitions. [2018-11-07 07:12:27,788 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 225 [2018-11-07 07:12:27,788 INFO L367 BasicCegarLoop]: Found error trace [2018-11-07 07:12:27,789 INFO L375 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-07 07:12:27,789 INFO L423 AbstractCegarLoop]: === Iteration 6 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-07 07:12:27,789 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 07:12:27,790 INFO L82 PathProgramCache]: Analyzing trace with hash -297463297, now seen corresponding path program 1 times [2018-11-07 07:12:27,790 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-07 07:12:27,791 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 07:12:27,791 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-07 07:12:27,791 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 07:12:27,791 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-07 07:12:27,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-07 07:12:28,097 INFO L134 CoverageAnalysis]: Checked inductivity of 54 backedges. 45 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2018-11-07 07:12:28,097 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-07 07:12:28,098 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-11-07 07:12:28,098 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-07 07:12:28,098 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-11-07 07:12:28,099 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-07 07:12:28,099 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-07 07:12:28,099 INFO L87 Difference]: Start difference. First operand 3501 states and 4910 transitions. Second operand 3 states. [2018-11-07 07:12:30,215 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-07 07:12:30,215 INFO L93 Difference]: Finished difference Result 9120 states and 13652 transitions. [2018-11-07 07:12:30,217 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-07 07:12:30,217 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 224 [2018-11-07 07:12:30,218 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-07 07:12:30,250 INFO L225 Difference]: With dead ends: 9120 [2018-11-07 07:12:30,250 INFO L226 Difference]: Without dead ends: 6044 [2018-11-07 07:12:30,267 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-07 07:12:30,273 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6044 states. [2018-11-07 07:12:30,407 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6044 to 6037. [2018-11-07 07:12:30,407 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6037 states. [2018-11-07 07:12:30,422 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6037 states to 6037 states and 8571 transitions. [2018-11-07 07:12:30,423 INFO L78 Accepts]: Start accepts. Automaton has 6037 states and 8571 transitions. Word has length 224 [2018-11-07 07:12:30,423 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-07 07:12:30,423 INFO L480 AbstractCegarLoop]: Abstraction has 6037 states and 8571 transitions. [2018-11-07 07:12:30,424 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-11-07 07:12:30,425 INFO L276 IsEmpty]: Start isEmpty. Operand 6037 states and 8571 transitions. [2018-11-07 07:12:30,445 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 250 [2018-11-07 07:12:30,446 INFO L367 BasicCegarLoop]: Found error trace [2018-11-07 07:12:30,446 INFO L375 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-07 07:12:30,447 INFO L423 AbstractCegarLoop]: === Iteration 7 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-07 07:12:30,447 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 07:12:30,447 INFO L82 PathProgramCache]: Analyzing trace with hash -595480447, now seen corresponding path program 1 times [2018-11-07 07:12:30,447 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-07 07:12:30,448 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 07:12:30,449 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-07 07:12:30,449 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 07:12:30,450 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-07 07:12:30,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-07 07:12:31,197 INFO L134 CoverageAnalysis]: Checked inductivity of 109 backedges. 98 proven. 2 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2018-11-07 07:12:31,197 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-07 07:12:31,197 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-07 07:12:31,198 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 250 with the following transitions: [2018-11-07 07:12:31,198 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [13], [17], [21], [24], [25], [29], [33], [37], [41], [45], [49], [53], [57], [61], [65], [68], [73], [75], [76], [80], [84], [88], [92], [96], [100], [104], [108], [112], [116], [120], [124], [127], [128], [132], [136], [140], [144], [148], [159], [163], [167], [171], [175], [179], [183], [187], [191], [202], [206], [210], [221], [225], [229], [233], [237], [241], [245], [249], [253], [257], [261], [265], [269], [273], [277], [281], [285], [289], [293], [297], [308], [312], [323], [327], [331], [335], [339], [343], [347], [351], [355], [359], [363], [367], [371], [375], [379], [383], [394], [398], [402], [406], [417], [421], [425], [429], [433], [437], [441], [445], [449], [453], [457], [461], [472], [476], [480], [484], [488], [492], [496], [500], [504], [508], [512], [516], [520], [524], [528], [532], [536], [540], [551], [555], [559], [570], [574], [585], [589], [593], [597], [601], [605], [609], [613], [624], [635], [646], [650], [654], [658], [662], [666], [673], [681], [689], [697], [705], [713], [721], [729], [737], [745], [753], [761], [769], [777], [785], [793], [801], [809], [817], [825], [833], [841], [849], [857], [865], [869], [871], [1157], [1161], [1165], [1171], [1175], [1177], [1182], [1183], [1184], [1186], [1187] [2018-11-07 07:12:31,206 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-11-07 07:12:31,207 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-07 07:12:32,128 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-11-07 07:12:32,129 INFO L272 AbstractInterpreter]: Visited 182 different actions 543 times. Merged at 7 different actions 21 times. Never widened. Found 4 fixpoints after 3 different actions. Largest state had 88 variables. [2018-11-07 07:12:32,139 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 07:12:32,140 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2018-11-07 07:12:32,140 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-07 07:12:32,140 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-11-07 07:12:32,151 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-07 07:12:32,151 INFO L288 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-11-07 07:12:32,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-07 07:12:32,396 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-07 07:12:32,610 INFO L134 CoverageAnalysis]: Checked inductivity of 109 backedges. 68 proven. 0 refuted. 0 times theorem prover too weak. 41 trivial. 0 not checked. [2018-11-07 07:12:32,610 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-11-07 07:12:32,796 INFO L134 CoverageAnalysis]: Checked inductivity of 109 backedges. 68 proven. 0 refuted. 0 times theorem prover too weak. 41 trivial. 0 not checked. [2018-11-07 07:12:32,819 INFO L312 seRefinementStrategy]: Constructing automaton from 2 perfect and 1 imperfect interpolant sequences. [2018-11-07 07:12:32,819 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [6] total 8 [2018-11-07 07:12:32,819 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-07 07:12:32,820 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-11-07 07:12:32,820 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-07 07:12:32,820 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2018-11-07 07:12:32,822 INFO L87 Difference]: Start difference. First operand 6037 states and 8571 transitions. Second operand 3 states. [2018-11-07 07:12:35,215 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-07 07:12:35,215 INFO L93 Difference]: Finished difference Result 11230 states and 16312 transitions. [2018-11-07 07:12:35,215 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-07 07:12:35,216 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 249 [2018-11-07 07:12:35,216 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-07 07:12:35,243 INFO L225 Difference]: With dead ends: 11230 [2018-11-07 07:12:35,243 INFO L226 Difference]: Without dead ends: 6039 [2018-11-07 07:12:35,263 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 503 GetRequests, 497 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2018-11-07 07:12:35,268 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6039 states. [2018-11-07 07:12:35,415 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6039 to 6037. [2018-11-07 07:12:35,416 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6037 states. [2018-11-07 07:12:35,429 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6037 states to 6037 states and 8052 transitions. [2018-11-07 07:12:35,429 INFO L78 Accepts]: Start accepts. Automaton has 6037 states and 8052 transitions. Word has length 249 [2018-11-07 07:12:35,430 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-07 07:12:35,430 INFO L480 AbstractCegarLoop]: Abstraction has 6037 states and 8052 transitions. [2018-11-07 07:12:35,430 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-11-07 07:12:35,430 INFO L276 IsEmpty]: Start isEmpty. Operand 6037 states and 8052 transitions. [2018-11-07 07:12:35,451 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 264 [2018-11-07 07:12:35,451 INFO L367 BasicCegarLoop]: Found error trace [2018-11-07 07:12:35,452 INFO L375 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-07 07:12:35,452 INFO L423 AbstractCegarLoop]: === Iteration 8 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-07 07:12:35,452 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 07:12:35,452 INFO L82 PathProgramCache]: Analyzing trace with hash -1821939352, now seen corresponding path program 1 times [2018-11-07 07:12:35,453 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-07 07:12:35,453 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 07:12:35,453 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-07 07:12:35,454 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 07:12:35,454 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-07 07:12:35,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-07 07:12:35,729 WARN L179 SmtUtils]: Spent 122.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 4 [2018-11-07 07:12:36,015 INFO L134 CoverageAnalysis]: Checked inductivity of 176 backedges. 84 proven. 59 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2018-11-07 07:12:36,015 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-07 07:12:36,015 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-07 07:12:36,015 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 264 with the following transitions: [2018-11-07 07:12:36,016 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [13], [17], [21], [24], [25], [29], [33], [37], [41], [45], [49], [53], [57], [61], [64], [65], [68], [73], [75], [76], [80], [84], [88], [92], [95], [96], [100], [104], [108], [112], [116], [120], [124], [128], [132], [136], [140], [144], [148], [159], [163], [167], [171], [175], [179], [183], [187], [191], [202], [206], [210], [221], [225], [229], [233], [237], [241], [245], [249], [253], [257], [261], [265], [269], [273], [277], [281], [285], [289], [293], [297], [308], [312], [323], [327], [331], [335], [339], [343], [347], [351], [355], [359], [363], [367], [371], [375], [379], [383], [394], [398], [402], [406], [417], [421], [425], [429], [433], [437], [441], [445], [449], [453], [457], [461], [472], [476], [480], [484], [488], [492], [496], [500], [504], [508], [512], [516], [520], [524], [528], [532], [536], [540], [551], [555], [559], [570], [574], [585], [589], [593], [597], [601], [605], [609], [613], [624], [635], [646], [650], [654], [658], [662], [666], [673], [681], [689], [697], [705], [713], [721], [729], [737], [745], [753], [761], [769], [777], [785], [793], [801], [809], [817], [825], [833], [841], [849], [857], [865], [869], [871], [1157], [1161], [1165], [1171], [1175], [1177], [1182], [1183], [1184], [1186], [1187] [2018-11-07 07:12:36,022 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-11-07 07:12:36,022 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-07 07:12:37,484 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-11-07 07:12:37,484 INFO L272 AbstractInterpreter]: Visited 183 different actions 547 times. Merged at 8 different actions 22 times. Never widened. Found 5 fixpoints after 3 different actions. Largest state had 88 variables. [2018-11-07 07:12:37,492 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 07:12:37,492 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2018-11-07 07:12:37,492 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-07 07:12:37,492 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-11-07 07:12:37,505 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-07 07:12:37,505 INFO L288 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-11-07 07:12:37,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-07 07:12:37,720 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-07 07:12:37,867 INFO L134 CoverageAnalysis]: Checked inductivity of 176 backedges. 104 proven. 2 refuted. 0 times theorem prover too weak. 70 trivial. 0 not checked. [2018-11-07 07:12:37,868 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-11-07 07:12:38,197 INFO L134 CoverageAnalysis]: Checked inductivity of 176 backedges. 93 proven. 20 refuted. 0 times theorem prover too weak. 63 trivial. 0 not checked. [2018-11-07 07:12:38,225 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2018-11-07 07:12:38,225 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 5, 5] total 14 [2018-11-07 07:12:38,225 INFO L251 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-11-07 07:12:38,226 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2018-11-07 07:12:38,226 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2018-11-07 07:12:38,226 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=141, Unknown=0, NotChecked=0, Total=182 [2018-11-07 07:12:38,227 INFO L87 Difference]: Start difference. First operand 6037 states and 8052 transitions. Second operand 12 states. [2018-11-07 07:12:44,413 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-07 07:12:44,413 INFO L93 Difference]: Finished difference Result 18884 states and 27182 transitions. [2018-11-07 07:12:44,414 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2018-11-07 07:12:44,414 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 263 [2018-11-07 07:12:44,414 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-07 07:12:44,482 INFO L225 Difference]: With dead ends: 18884 [2018-11-07 07:12:44,482 INFO L226 Difference]: Without dead ends: 13274 [2018-11-07 07:12:44,523 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 590 GetRequests, 548 SyntacticMatches, 2 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 451 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=409, Invalid=1313, Unknown=0, NotChecked=0, Total=1722 [2018-11-07 07:12:44,536 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13274 states. [2018-11-07 07:12:44,905 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13274 to 13270. [2018-11-07 07:12:44,906 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13270 states. [2018-11-07 07:12:44,957 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13270 states to 13270 states and 18152 transitions. [2018-11-07 07:12:44,958 INFO L78 Accepts]: Start accepts. Automaton has 13270 states and 18152 transitions. Word has length 263 [2018-11-07 07:12:44,958 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-07 07:12:44,958 INFO L480 AbstractCegarLoop]: Abstraction has 13270 states and 18152 transitions. [2018-11-07 07:12:44,959 INFO L481 AbstractCegarLoop]: Interpolant automaton has 12 states. [2018-11-07 07:12:44,959 INFO L276 IsEmpty]: Start isEmpty. Operand 13270 states and 18152 transitions. [2018-11-07 07:12:45,026 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 317 [2018-11-07 07:12:45,026 INFO L367 BasicCegarLoop]: Found error trace [2018-11-07 07:12:45,027 INFO L375 BasicCegarLoop]: trace histogram [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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2018-11-07 07:12:45,027 INFO L423 AbstractCegarLoop]: === Iteration 9 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-07 07:12:45,027 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 07:12:45,027 INFO L82 PathProgramCache]: Analyzing trace with hash -759076715, now seen corresponding path program 1 times [2018-11-07 07:12:45,028 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-07 07:12:45,028 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 07:12:45,029 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-07 07:12:45,029 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 07:12:45,029 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-07 07:12:45,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-07 07:12:45,625 INFO L134 CoverageAnalysis]: Checked inductivity of 175 backedges. 141 proven. 8 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2018-11-07 07:12:45,626 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-07 07:12:45,626 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-07 07:12:45,626 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 317 with the following transitions: [2018-11-07 07:12:45,627 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [5], [8], [12], [13], [17], [21], [25], [29], [33], [37], [41], [45], [49], [53], [57], [61], [65], [76], [80], [84], [88], [92], [95], [96], [100], [104], [108], [112], [116], [120], [124], [128], [132], [136], [140], [144], [148], [159], [163], [167], [171], [175], [179], [183], [187], [191], [202], [206], [210], [221], [225], [229], [233], [237], [241], [245], [249], [253], [257], [261], [265], [269], [273], [277], [281], [285], [289], [293], [297], [308], [312], [323], [327], [331], [335], [339], [343], [347], [351], [355], [359], [363], [367], [371], [375], [379], [383], [394], [398], [402], [406], [417], [421], [425], [429], [433], [436], [437], [441], [445], [449], [453], [457], [461], [472], [476], [480], [484], [488], [492], [496], [500], [504], [508], [512], [516], [520], [524], [528], [532], [536], [540], [551], [555], [559], [570], [574], [585], [589], [593], [597], [601], [605], [609], [613], [624], [635], [646], [650], [654], [658], [662], [666], [673], [681], [689], [697], [705], [713], [721], [729], [737], [745], [753], [761], [769], [777], [785], [793], [801], [809], [817], [825], [833], [841], [849], [857], [865], [869], [871], [1157], [1161], [1165], [1171], [1175], [1177], [1182], [1183], [1184], [1186], [1187] [2018-11-07 07:12:45,632 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-11-07 07:12:45,632 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-07 07:12:46,995 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-11-07 07:12:46,995 INFO L272 AbstractInterpreter]: Visited 183 different actions 547 times. Merged at 8 different actions 24 times. Never widened. Found 4 fixpoints after 3 different actions. Largest state had 88 variables. [2018-11-07 07:12:47,001 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 07:12:47,001 INFO L398 sIntCurrentIteration]: Generating AbsInt predicates [2018-11-07 07:12:48,018 INFO L227 lantSequenceWeakener]: Weakened 313 states. On average, predicates are now at 74.23% of their original sizes. [2018-11-07 07:12:48,019 INFO L413 sIntCurrentIteration]: Unifying AI predicates [2018-11-07 07:12:48,434 INFO L415 sIntCurrentIteration]: We unified 315 AI predicates to 315 [2018-11-07 07:12:48,434 INFO L424 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-11-07 07:12:48,434 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-11-07 07:12:48,435 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [25] imperfect sequences [5] total 28 [2018-11-07 07:12:48,435 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-07 07:12:48,436 INFO L459 AbstractCegarLoop]: Interpolant automaton has 25 states [2018-11-07 07:12:48,436 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2018-11-07 07:12:48,436 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=112, Invalid=488, Unknown=0, NotChecked=0, Total=600 [2018-11-07 07:12:48,436 INFO L87 Difference]: Start difference. First operand 13270 states and 18152 transitions. Second operand 25 states. [2018-11-07 07:14:05,822 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-07 07:14:05,823 INFO L93 Difference]: Finished difference Result 49713 states and 71127 transitions. [2018-11-07 07:14:05,823 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 45 states. [2018-11-07 07:14:05,823 INFO L78 Accepts]: Start accepts. Automaton has 25 states. Word has length 316 [2018-11-07 07:14:05,824 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-07 07:14:06,009 INFO L225 Difference]: With dead ends: 49713 [2018-11-07 07:14:06,010 INFO L226 Difference]: Without dead ends: 36870 [2018-11-07 07:14:06,069 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 345 GetRequests, 292 SyntacticMatches, 0 SemanticMatches, 53 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 723 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=538, Invalid=2432, Unknown=0, NotChecked=0, Total=2970 [2018-11-07 07:14:06,103 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36870 states. [2018-11-07 07:14:06,850 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36870 to 36798. [2018-11-07 07:14:06,850 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 36798 states. [2018-11-07 07:14:06,977 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36798 states to 36798 states and 49259 transitions. [2018-11-07 07:14:06,977 INFO L78 Accepts]: Start accepts. Automaton has 36798 states and 49259 transitions. Word has length 316 [2018-11-07 07:14:06,978 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-07 07:14:06,978 INFO L480 AbstractCegarLoop]: Abstraction has 36798 states and 49259 transitions. [2018-11-07 07:14:06,978 INFO L481 AbstractCegarLoop]: Interpolant automaton has 25 states. [2018-11-07 07:14:06,978 INFO L276 IsEmpty]: Start isEmpty. Operand 36798 states and 49259 transitions. [2018-11-07 07:14:07,078 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 340 [2018-11-07 07:14:07,078 INFO L367 BasicCegarLoop]: Found error trace [2018-11-07 07:14:07,079 INFO L375 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-07 07:14:07,079 INFO L423 AbstractCegarLoop]: === Iteration 10 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-07 07:14:07,079 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 07:14:07,080 INFO L82 PathProgramCache]: Analyzing trace with hash 1491452514, now seen corresponding path program 1 times [2018-11-07 07:14:07,080 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-07 07:14:07,081 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 07:14:07,081 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-07 07:14:07,081 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 07:14:07,081 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-07 07:14:07,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-07 07:14:07,727 WARN L179 SmtUtils]: Spent 156.00 ms on a formula simplification that was a NOOP. DAG size: 12 [2018-11-07 07:14:07,997 INFO L134 CoverageAnalysis]: Checked inductivity of 272 backedges. 187 proven. 58 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2018-11-07 07:14:07,997 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-07 07:14:07,997 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-07 07:14:07,998 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 340 with the following transitions: [2018-11-07 07:14:07,998 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [13], [17], [21], [24], [25], [28], [29], [33], [37], [41], [45], [49], [53], [57], [61], [65], [76], [80], [84], [88], [92], [96], [100], [104], [108], [112], [116], [120], [124], [128], [132], [136], [140], [144], [148], [159], [163], [167], [171], [175], [179], [183], [187], [191], [202], [206], [210], [221], [225], [229], [233], [237], [240], [241], [245], [249], [253], [257], [261], [265], [269], [273], [277], [281], [285], [289], [293], [297], [308], [312], [323], [327], [331], [334], [335], [339], [343], [347], [351], [355], [359], [363], [367], [371], [375], [379], [383], [394], [398], [402], [406], [417], [421], [425], [429], [433], [437], [441], [445], [449], [453], [457], [461], [472], [476], [480], [484], [488], [492], [496], [500], [504], [508], [512], [516], [520], [524], [528], [532], [536], [540], [551], [555], [559], [570], [574], [585], [589], [593], [597], [601], [605], [609], [613], [624], [635], [646], [650], [654], [658], [662], [666], [673], [681], [689], [697], [705], [713], [721], [729], [737], [745], [753], [761], [769], [777], [785], [793], [801], [809], [817], [825], [833], [841], [849], [857], [865], [869], [871], [1157], [1161], [1165], [1171], [1175], [1177], [1182], [1183], [1184], [1186], [1187] [2018-11-07 07:14:08,004 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-11-07 07:14:08,004 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-07 07:14:10,492 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-11-07 07:14:10,492 INFO L272 AbstractInterpreter]: Visited 183 different actions 732 times. Merged at 9 different actions 35 times. Widened at 1 different actions 1 times. Found 8 fixpoints after 4 different actions. Largest state had 88 variables. [2018-11-07 07:14:10,502 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 07:14:10,502 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2018-11-07 07:14:10,502 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-07 07:14:10,502 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-11-07 07:14:10,512 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-07 07:14:10,512 INFO L288 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-11-07 07:14:10,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-07 07:14:10,772 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-07 07:14:10,938 INFO L134 CoverageAnalysis]: Checked inductivity of 272 backedges. 202 proven. 4 refuted. 0 times theorem prover too weak. 66 trivial. 0 not checked. [2018-11-07 07:14:10,938 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-11-07 07:14:11,617 INFO L134 CoverageAnalysis]: Checked inductivity of 272 backedges. 202 proven. 4 refuted. 0 times theorem prover too weak. 66 trivial. 0 not checked. [2018-11-07 07:14:11,653 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2018-11-07 07:14:11,653 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 5, 5] total 11 [2018-11-07 07:14:11,653 INFO L251 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-11-07 07:14:11,654 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-11-07 07:14:11,655 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-11-07 07:14:11,655 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=83, Unknown=0, NotChecked=0, Total=110 [2018-11-07 07:14:11,655 INFO L87 Difference]: Start difference. First operand 36798 states and 49259 transitions. Second operand 9 states. [2018-11-07 07:14:20,457 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-07 07:14:20,457 INFO L93 Difference]: Finished difference Result 133579 states and 185200 transitions. [2018-11-07 07:14:20,458 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 40 states. [2018-11-07 07:14:20,458 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 339 [2018-11-07 07:14:20,458 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-07 07:14:20,928 INFO L225 Difference]: With dead ends: 133579 [2018-11-07 07:14:20,929 INFO L226 Difference]: Without dead ends: 97207 [2018-11-07 07:14:21,576 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 745 GetRequests, 705 SyntacticMatches, 0 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 456 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=342, Invalid=1380, Unknown=0, NotChecked=0, Total=1722 [2018-11-07 07:14:21,641 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 97207 states. [2018-11-07 07:14:23,100 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 97207 to 96204. [2018-11-07 07:14:23,101 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 96204 states. [2018-11-07 07:14:23,372 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 96204 states to 96204 states and 123524 transitions. [2018-11-07 07:14:23,372 INFO L78 Accepts]: Start accepts. Automaton has 96204 states and 123524 transitions. Word has length 339 [2018-11-07 07:14:23,373 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-07 07:14:23,373 INFO L480 AbstractCegarLoop]: Abstraction has 96204 states and 123524 transitions. [2018-11-07 07:14:23,373 INFO L481 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-11-07 07:14:23,373 INFO L276 IsEmpty]: Start isEmpty. Operand 96204 states and 123524 transitions. [2018-11-07 07:14:23,492 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 394 [2018-11-07 07:14:23,492 INFO L367 BasicCegarLoop]: Found error trace [2018-11-07 07:14:23,493 INFO L375 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-07 07:14:23,493 INFO L423 AbstractCegarLoop]: === Iteration 11 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-07 07:14:23,493 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 07:14:23,494 INFO L82 PathProgramCache]: Analyzing trace with hash -1662360738, now seen corresponding path program 1 times [2018-11-07 07:14:23,494 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-07 07:14:23,494 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 07:14:23,495 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-07 07:14:23,495 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 07:14:23,495 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-07 07:14:23,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-07 07:14:24,815 INFO L134 CoverageAnalysis]: Checked inductivity of 331 backedges. 290 proven. 32 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2018-11-07 07:14:24,815 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-07 07:14:24,816 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-07 07:14:24,816 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 394 with the following transitions: [2018-11-07 07:14:24,816 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [13], [17], [21], [24], [25], [29], [33], [37], [41], [45], [49], [53], [57], [61], [65], [76], [80], [84], [88], [92], [95], [96], [100], [104], [108], [112], [116], [120], [124], [127], [128], [132], [136], [140], [144], [148], [159], [163], [167], [171], [175], [179], [183], [187], [191], [202], [206], [210], [221], [225], [229], [233], [237], [241], [245], [249], [253], [257], [261], [265], [269], [273], [277], [281], [285], [289], [293], [297], [308], [312], [323], [327], [331], [335], [339], [343], [347], [351], [355], [359], [363], [367], [371], [375], [379], [383], [394], [398], [402], [406], [417], [421], [425], [429], [433], [437], [441], [445], [449], [453], [457], [461], [472], [476], [480], [484], [488], [492], [496], [500], [504], [508], [512], [516], [520], [524], [528], [532], [536], [540], [551], [555], [559], [570], [574], [585], [589], [593], [597], [601], [605], [609], [613], [616], [619], [623], [624], [635], [646], [650], [654], [658], [662], [666], [673], [681], [689], [697], [705], [713], [721], [729], [737], [745], [753], [761], [769], [777], [785], [793], [801], [809], [817], [825], [833], [841], [849], [857], [865], [869], [871], [1157], [1161], [1165], [1171], [1175], [1177], [1182], [1183], [1184], [1186], [1187] [2018-11-07 07:14:24,822 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-11-07 07:14:24,823 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-07 07:14:26,038 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-11-07 07:14:26,038 INFO L272 AbstractInterpreter]: Visited 183 different actions 548 times. Merged at 8 different actions 23 times. Never widened. Found 5 fixpoints after 3 different actions. Largest state had 88 variables. [2018-11-07 07:14:26,048 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 07:14:26,048 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2018-11-07 07:14:26,048 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-07 07:14:26,048 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-11-07 07:14:26,057 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-07 07:14:26,057 INFO L288 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-11-07 07:14:26,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-07 07:14:26,328 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-07 07:14:27,076 INFO L134 CoverageAnalysis]: Checked inductivity of 331 backedges. 275 proven. 2 refuted. 0 times theorem prover too weak. 54 trivial. 0 not checked. [2018-11-07 07:14:27,077 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-11-07 07:14:27,234 WARN L179 SmtUtils]: Spent 101.00 ms on a formula simplification that was a NOOP. DAG size: 8 [2018-11-07 07:14:27,997 INFO L134 CoverageAnalysis]: Checked inductivity of 331 backedges. 275 proven. 2 refuted. 0 times theorem prover too weak. 54 trivial. 0 not checked. [2018-11-07 07:14:28,019 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2018-11-07 07:14:28,020 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 5, 5] total 15 [2018-11-07 07:14:28,020 INFO L251 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-11-07 07:14:28,020 INFO L459 AbstractCegarLoop]: Interpolant automaton has 14 states [2018-11-07 07:14:28,021 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2018-11-07 07:14:28,021 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=173, Unknown=0, NotChecked=0, Total=210 [2018-11-07 07:14:28,021 INFO L87 Difference]: Start difference. First operand 96204 states and 123524 transitions. Second operand 14 states. Received shutdown request... [2018-11-07 07:14:34,485 WARN L187 SmtUtils]: Removed 7 from assertion stack [2018-11-07 07:14:34,486 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 66 states. [2018-11-07 07:14:34,486 WARN L549 AbstractCegarLoop]: Verification canceled [2018-11-07 07:14:34,491 WARN L205 ceAbstractionStarter]: Timeout [2018-11-07 07:14:34,491 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 07.11 07:14:34 BoogieIcfgContainer [2018-11-07 07:14:34,492 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-11-07 07:14:34,493 INFO L168 Benchmark]: Toolchain (without parser) took 225260.41 ms. Allocated memory was 1.5 GB in the beginning and 4.1 GB in the end (delta: 2.5 GB). Free memory was 1.4 GB in the beginning and 1.2 GB in the end (delta: 222.3 MB). Peak memory consumption was 2.7 GB. Max. memory is 7.1 GB. [2018-11-07 07:14:34,494 INFO L168 Benchmark]: CDTParser took 0.19 ms. Allocated memory is still 1.5 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-11-07 07:14:34,494 INFO L168 Benchmark]: CACSL2BoogieTranslator took 1290.19 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.3 GB in the end (delta: 74.0 MB). Peak memory consumption was 74.0 MB. Max. memory is 7.1 GB. [2018-11-07 07:14:34,497 INFO L168 Benchmark]: Boogie Procedure Inliner took 212.15 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 749.7 MB). Free memory was 1.3 GB in the beginning and 2.2 GB in the end (delta: -876.4 MB). Peak memory consumption was 38.6 MB. Max. memory is 7.1 GB. [2018-11-07 07:14:34,498 INFO L168 Benchmark]: Boogie Preprocessor took 141.75 ms. Allocated memory is still 2.3 GB. Free memory is still 2.2 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-11-07 07:14:34,499 INFO L168 Benchmark]: RCFGBuilder took 4704.91 ms. Allocated memory is still 2.3 GB. Free memory was 2.2 GB in the beginning and 2.0 GB in the end (delta: 257.2 MB). Peak memory consumption was 257.2 MB. Max. memory is 7.1 GB. [2018-11-07 07:14:34,504 INFO L168 Benchmark]: TraceAbstraction took 218905.72 ms. Allocated memory was 2.3 GB in the beginning and 4.1 GB in the end (delta: 1.8 GB). Free memory was 2.0 GB in the beginning and 1.2 GB in the end (delta: 767.5 MB). Peak memory consumption was 2.5 GB. Max. memory is 7.1 GB. [2018-11-07 07:14:34,514 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19 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 1290.19 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.3 GB in the end (delta: 74.0 MB). Peak memory consumption was 74.0 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 212.15 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 749.7 MB). Free memory was 1.3 GB in the beginning and 2.2 GB in the end (delta: -876.4 MB). Peak memory consumption was 38.6 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 141.75 ms. Allocated memory is still 2.3 GB. Free memory is still 2.2 GB. There was no memory consumed. Max. memory is 7.1 GB. * RCFGBuilder took 4704.91 ms. Allocated memory is still 2.3 GB. Free memory was 2.2 GB in the beginning and 2.0 GB in the end (delta: 257.2 MB). Peak memory consumption was 257.2 MB. Max. memory is 7.1 GB. * TraceAbstraction took 218905.72 ms. Allocated memory was 2.3 GB in the beginning and 4.1 GB in the end (delta: 1.8 GB). Free memory was 2.0 GB in the beginning and 1.2 GB in the end (delta: 767.5 MB). Peak memory consumption was 2.5 GB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResultAtElement [Line: 1542]: Timeout (TraceAbstraction) Unable to prove that call of __VERIFIER_error() unreachable (line 1542). Cancelled while BasicCegarLoop was constructing difference of abstraction (96204states) and FLOYD_HOARE automaton (currently 66 states, 14 states before enhancement),while PredicateUnifier was unifying predicates,while SimplifyDDAWithTimeout was simplifying term of DAG size 16. - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 312 locations, 1 error locations. TIMEOUT Result, 218.8s OverallTime, 11 OverallIterations, 5 TraceHistogramMax, 187.6s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 2667 SDtfs, 21133 SDslu, 5230 SDs, 0 SdLazy, 34402 SolverSat, 6105 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 92.9s Time, PredicateUnifierStatistics: 6 DeclaredPredicates, 3572 GetRequests, 3286 SyntacticMatches, 11 SemanticMatches, 274 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4070 ImplicationChecksByTransitivity, 10.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=96204occurred in iteration=10, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 10.4s AbstIntTime, 7 AbstIntIterations, 3 AbstIntStrong, 0.9988989084817878 AbsIntWeakeningRatio, 0.26613965744400525 AbsIntAvgWeakeningVarsNumRemoved, 55.15415019762846 AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 3.8s AutomataMinimizationTime, 10 MinimizatonAttempts, 1146 StatesRemovedByMinimization, 10 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.4s SsaConstructionTime, 1.2s SatisfiabilityAnalysisTime, 8.6s InterpolantComputationTime, 4043 NumberOfCodeBlocks, 4043 NumberOfCodeBlocksAsserted, 15 NumberOfCheckSat, 5268 ConstructedInterpolants, 0 QuantifiedInterpolants, 3305548 SizeOfPredicates, 3 NumberOfNonLiveVariables, 5593 ConjunctsInSsa, 23 ConjunctsInUnsatCore, 19 InterpolantComputations, 6 PerfectInterpolantSequences, 2845/3042 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Completed graceful shutdown