java -Xmx8000000000 -jar /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -s ../../../trunk/examples/settings/default/taipan/svcomp-Reach-64bit-Taipan_Default.epf -i ../../../trunk/examples/svcomp/eca-rers2012/Problem19_label36_true-unreach-call.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-1dbac8b [2018-10-27 03:54:00,082 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-10-27 03:54:00,084 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-10-27 03:54:00,102 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-10-27 03:54:00,102 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-10-27 03:54:00,103 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-10-27 03:54:00,105 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-10-27 03:54:00,108 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-10-27 03:54:00,120 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-10-27 03:54:00,126 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-10-27 03:54:00,127 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-10-27 03:54:00,131 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-10-27 03:54:00,132 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-10-27 03:54:00,135 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-10-27 03:54:00,136 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-10-27 03:54:00,137 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-10-27 03:54:00,140 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-10-27 03:54:00,144 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-10-27 03:54:00,147 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-10-27 03:54:00,150 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-10-27 03:54:00,152 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-10-27 03:54:00,153 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-10-27 03:54:00,156 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-10-27 03:54:00,156 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-10-27 03:54:00,156 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-10-27 03:54:00,161 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-10-27 03:54:00,162 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-10-27 03:54:00,163 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-10-27 03:54:00,164 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-10-27 03:54:00,165 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-10-27 03:54:00,166 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-10-27 03:54:00,167 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-10-27 03:54:00,167 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-10-27 03:54:00,169 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-10-27 03:54:00,170 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-10-27 03:54:00,171 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-10-27 03:54:00,171 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/../../../trunk/examples/settings/default/taipan/svcomp-Reach-64bit-Taipan_Default.epf [2018-10-27 03:54:00,197 INFO L110 SettingsManager]: Loading preferences was successful [2018-10-27 03:54:00,198 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-10-27 03:54:00,199 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-10-27 03:54:00,200 INFO L133 SettingsManager]: * User list type=DISABLED [2018-10-27 03:54:00,200 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-10-27 03:54:00,200 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-10-27 03:54:00,200 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-10-27 03:54:00,200 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-10-27 03:54:00,201 INFO L133 SettingsManager]: * Log string format=TERM [2018-10-27 03:54:00,201 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-10-27 03:54:00,201 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-10-27 03:54:00,201 INFO L133 SettingsManager]: * Interval Domain=false [2018-10-27 03:54:00,202 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-10-27 03:54:00,203 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-10-27 03:54:00,203 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-10-27 03:54:00,203 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-10-27 03:54:00,203 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-10-27 03:54:00,203 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-10-27 03:54:00,204 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-10-27 03:54:00,204 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-10-27 03:54:00,204 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-10-27 03:54:00,204 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-10-27 03:54:00,204 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-10-27 03:54:00,205 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-10-27 03:54:00,206 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-10-27 03:54:00,207 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-10-27 03:54:00,207 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-10-27 03:54:00,207 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-10-27 03:54:00,207 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-10-27 03:54:00,207 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-10-27 03:54:00,208 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-10-27 03:54:00,208 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-10-27 03:54:00,208 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-10-27 03:54:00,208 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-10-27 03:54:00,276 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-10-27 03:54:00,292 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-10-27 03:54:00,297 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-10-27 03:54:00,299 INFO L271 PluginConnector]: Initializing CDTParser... [2018-10-27 03:54:00,299 INFO L276 PluginConnector]: CDTParser initialized [2018-10-27 03:54:00,300 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem19_label36_true-unreach-call.c [2018-10-27 03:54:00,365 INFO L218 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/3745a47ed/e25edca1aa8b4a89841f0b07f47b6b81/FLAG40bfc86c8 [2018-10-27 03:54:01,248 INFO L298 CDTParser]: Found 1 translation units. [2018-10-27 03:54:01,249 INFO L158 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem19_label36_true-unreach-call.c [2018-10-27 03:54:01,298 INFO L346 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/3745a47ed/e25edca1aa8b4a89841f0b07f47b6b81/FLAG40bfc86c8 [2018-10-27 03:54:01,317 INFO L354 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/3745a47ed/e25edca1aa8b4a89841f0b07f47b6b81 [2018-10-27 03:54:01,328 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-10-27 03:54:01,330 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-10-27 03:54:01,331 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-10-27 03:54:01,331 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-10-27 03:54:01,337 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-10-27 03:54:01,338 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.10 03:54:01" (1/1) ... [2018-10-27 03:54:01,341 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@100fc25b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 03:54:01, skipping insertion in model container [2018-10-27 03:54:01,342 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.10 03:54:01" (1/1) ... [2018-10-27 03:54:01,353 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-10-27 03:54:01,610 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-10-27 03:54:03,492 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-27 03:54:03,498 INFO L189 MainTranslator]: Completed pre-run [2018-10-27 03:54:04,553 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-27 03:54:04,611 INFO L193 MainTranslator]: Completed translation [2018-10-27 03:54:04,611 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 03:54:04 WrapperNode [2018-10-27 03:54:04,612 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-10-27 03:54:04,613 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-10-27 03:54:04,613 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-10-27 03:54:04,613 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-10-27 03:54:04,624 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 03:54:04" (1/1) ... [2018-10-27 03:54:04,733 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 03:54:04" (1/1) ... [2018-10-27 03:54:05,352 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-10-27 03:54:05,353 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-10-27 03:54:05,353 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-10-27 03:54:05,353 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-10-27 03:54:05,364 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 03:54:04" (1/1) ... [2018-10-27 03:54:05,364 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 03:54:04" (1/1) ... [2018-10-27 03:54:05,400 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 03:54:04" (1/1) ... [2018-10-27 03:54:05,401 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 03:54:04" (1/1) ... [2018-10-27 03:54:05,620 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 03:54:04" (1/1) ... [2018-10-27 03:54:05,667 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 03:54:04" (1/1) ... [2018-10-27 03:54:05,771 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 03:54:04" (1/1) ... [2018-10-27 03:54:05,910 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-10-27 03:54:05,910 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-10-27 03:54:05,910 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-10-27 03:54:05,910 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-10-27 03:54:05,911 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 03:54:04" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UTaipan-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 [2018-10-27 03:54:05,987 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-10-27 03:54:05,987 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-10-27 03:54:05,988 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output6 [2018-10-27 03:54:05,988 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output6 [2018-10-27 03:54:05,988 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output5 [2018-10-27 03:54:05,988 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output5 [2018-10-27 03:54:05,988 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output4 [2018-10-27 03:54:05,989 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output4 [2018-10-27 03:54:05,989 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output3 [2018-10-27 03:54:05,989 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output3 [2018-10-27 03:54:05,989 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output2 [2018-10-27 03:54:05,989 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output2 [2018-10-27 03:54:05,990 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2018-10-27 03:54:05,991 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2018-10-27 03:54:05,991 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-10-27 03:54:05,991 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-10-27 03:54:05,991 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-10-27 03:54:05,991 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-10-27 03:54:26,260 INFO L341 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-10-27 03:54:26,261 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.10 03:54:26 BoogieIcfgContainer [2018-10-27 03:54:26,261 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-10-27 03:54:26,262 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-10-27 03:54:26,263 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-10-27 03:54:26,266 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-10-27 03:54:26,266 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 27.10 03:54:01" (1/3) ... [2018-10-27 03:54:26,267 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7336bc15 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.10 03:54:26, skipping insertion in model container [2018-10-27 03:54:26,267 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 03:54:04" (2/3) ... [2018-10-27 03:54:26,268 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7336bc15 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.10 03:54:26, skipping insertion in model container [2018-10-27 03:54:26,268 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.10 03:54:26" (3/3) ... [2018-10-27 03:54:26,270 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem19_label36_true-unreach-call.c [2018-10-27 03:54:26,280 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-10-27 03:54:26,301 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-10-27 03:54:26,320 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-10-27 03:54:26,394 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-10-27 03:54:26,394 INFO L383 AbstractCegarLoop]: Hoare is true [2018-10-27 03:54:26,394 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-10-27 03:54:26,394 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-10-27 03:54:26,395 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-10-27 03:54:26,395 INFO L387 AbstractCegarLoop]: Difference is false [2018-10-27 03:54:26,395 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-10-27 03:54:26,395 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-10-27 03:54:26,466 INFO L276 IsEmpty]: Start isEmpty. Operand 1778 states. [2018-10-27 03:54:26,473 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2018-10-27 03:54:26,473 INFO L367 BasicCegarLoop]: Found error trace [2018-10-27 03:54:26,474 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] [2018-10-27 03:54:26,476 INFO L424 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-27 03:54:26,482 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-27 03:54:26,482 INFO L82 PathProgramCache]: Analyzing trace with hash -1662781076, now seen corresponding path program 1 times [2018-10-27 03:54:26,485 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-27 03:54:26,543 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 03:54:26,543 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-27 03:54:26,543 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 03:54:26,543 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-27 03:54:26,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-27 03:54:26,929 WARN L179 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 4 [2018-10-27 03:54:27,027 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-27 03:54:27,030 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-27 03:54:27,030 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-10-27 03:54:27,031 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-27 03:54:27,037 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-10-27 03:54:27,054 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-10-27 03:54:27,054 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-10-27 03:54:27,057 INFO L87 Difference]: Start difference. First operand 1778 states. Second operand 3 states. [2018-10-27 03:54:41,878 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-27 03:54:41,878 INFO L93 Difference]: Finished difference Result 4999 states and 9420 transitions. [2018-10-27 03:54:41,880 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-10-27 03:54:41,881 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 40 [2018-10-27 03:54:41,882 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-27 03:54:41,932 INFO L225 Difference]: With dead ends: 4999 [2018-10-27 03:54:41,932 INFO L226 Difference]: Without dead ends: 3219 [2018-10-27 03:54:41,945 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 2 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-10-27 03:54:41,970 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3219 states. [2018-10-27 03:54:42,135 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3219 to 3215. [2018-10-27 03:54:42,137 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3215 states. [2018-10-27 03:54:42,153 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3215 states to 3215 states and 5845 transitions. [2018-10-27 03:54:42,155 INFO L78 Accepts]: Start accepts. Automaton has 3215 states and 5845 transitions. Word has length 40 [2018-10-27 03:54:42,156 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-27 03:54:42,156 INFO L481 AbstractCegarLoop]: Abstraction has 3215 states and 5845 transitions. [2018-10-27 03:54:42,156 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-10-27 03:54:42,156 INFO L276 IsEmpty]: Start isEmpty. Operand 3215 states and 5845 transitions. [2018-10-27 03:54:42,163 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2018-10-27 03:54:42,163 INFO L367 BasicCegarLoop]: Found error trace [2018-10-27 03:54:42,163 INFO L375 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-27 03:54:42,164 INFO L424 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-27 03:54:42,164 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-27 03:54:42,164 INFO L82 PathProgramCache]: Analyzing trace with hash -997001405, now seen corresponding path program 1 times [2018-10-27 03:54:42,165 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-27 03:54:42,166 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 03:54:42,166 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-27 03:54:42,166 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 03:54:42,166 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-27 03:54:42,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-27 03:54:42,736 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 33 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-27 03:54:42,737 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-27 03:54:42,737 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-10-27 03:54:42,737 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-27 03:54:42,739 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-10-27 03:54:42,739 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-10-27 03:54:42,740 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-10-27 03:54:42,740 INFO L87 Difference]: Start difference. First operand 3215 states and 5845 transitions. Second operand 6 states. [2018-10-27 03:55:07,430 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-27 03:55:07,430 INFO L93 Difference]: Finished difference Result 9331 states and 16910 transitions. [2018-10-27 03:55:07,438 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-10-27 03:55:07,438 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 112 [2018-10-27 03:55:07,439 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-27 03:55:07,471 INFO L225 Difference]: With dead ends: 9331 [2018-10-27 03:55:07,471 INFO L226 Difference]: Without dead ends: 6122 [2018-10-27 03:55:07,482 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2018-10-27 03:55:07,488 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6122 states. [2018-10-27 03:55:07,640 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6122 to 6084. [2018-10-27 03:55:07,640 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6084 states. [2018-10-27 03:55:07,662 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6084 states to 6084 states and 9616 transitions. [2018-10-27 03:55:07,662 INFO L78 Accepts]: Start accepts. Automaton has 6084 states and 9616 transitions. Word has length 112 [2018-10-27 03:55:07,663 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-27 03:55:07,663 INFO L481 AbstractCegarLoop]: Abstraction has 6084 states and 9616 transitions. [2018-10-27 03:55:07,663 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-10-27 03:55:07,663 INFO L276 IsEmpty]: Start isEmpty. Operand 6084 states and 9616 transitions. [2018-10-27 03:55:07,678 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2018-10-27 03:55:07,678 INFO L367 BasicCegarLoop]: Found error trace [2018-10-27 03:55:07,678 INFO L375 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-27 03:55:07,679 INFO L424 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-27 03:55:07,679 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-27 03:55:07,679 INFO L82 PathProgramCache]: Analyzing trace with hash -2068825087, now seen corresponding path program 1 times [2018-10-27 03:55:07,679 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-27 03:55:07,682 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 03:55:07,682 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-27 03:55:07,683 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 03:55:07,683 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-27 03:55:07,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-27 03:55:08,084 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 33 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-27 03:55:08,085 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-27 03:55:08,085 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-10-27 03:55:08,085 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-27 03:55:08,086 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-10-27 03:55:08,086 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-10-27 03:55:08,086 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2018-10-27 03:55:08,086 INFO L87 Difference]: Start difference. First operand 6084 states and 9616 transitions. Second operand 6 states. [2018-10-27 03:55:53,215 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-27 03:55:53,216 INFO L93 Difference]: Finished difference Result 24241 states and 39702 transitions. [2018-10-27 03:55:53,219 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2018-10-27 03:55:53,219 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 130 [2018-10-27 03:55:53,220 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-27 03:55:53,311 INFO L225 Difference]: With dead ends: 24241 [2018-10-27 03:55:53,311 INFO L226 Difference]: Without dead ends: 18163 [2018-10-27 03:55:53,348 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=32, Invalid=58, Unknown=0, NotChecked=0, Total=90 [2018-10-27 03:55:53,363 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18163 states. [2018-10-27 03:55:53,804 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18163 to 18089. [2018-10-27 03:55:53,805 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18089 states. [2018-10-27 03:55:53,860 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18089 states to 18089 states and 25634 transitions. [2018-10-27 03:55:53,860 INFO L78 Accepts]: Start accepts. Automaton has 18089 states and 25634 transitions. Word has length 130 [2018-10-27 03:55:53,863 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-27 03:55:53,863 INFO L481 AbstractCegarLoop]: Abstraction has 18089 states and 25634 transitions. [2018-10-27 03:55:53,863 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-10-27 03:55:53,863 INFO L276 IsEmpty]: Start isEmpty. Operand 18089 states and 25634 transitions. [2018-10-27 03:55:53,874 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 176 [2018-10-27 03:55:53,875 INFO L367 BasicCegarLoop]: Found error trace [2018-10-27 03:55:53,875 INFO L375 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-27 03:55:53,875 INFO L424 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-27 03:55:53,876 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-27 03:55:53,877 INFO L82 PathProgramCache]: Analyzing trace with hash -162888064, now seen corresponding path program 1 times [2018-10-27 03:55:53,877 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-27 03:55:53,879 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 03:55:53,879 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-27 03:55:53,880 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 03:55:53,880 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-27 03:55:53,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-27 03:55:54,242 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 33 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-27 03:55:54,242 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-27 03:55:54,243 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-10-27 03:55:54,243 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-27 03:55:54,243 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-10-27 03:55:54,244 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-10-27 03:55:54,244 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-10-27 03:55:54,244 INFO L87 Difference]: Start difference. First operand 18089 states and 25634 transitions. Second operand 5 states. [2018-10-27 03:56:22,308 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-27 03:56:22,309 INFO L93 Difference]: Finished difference Result 56348 states and 85050 transitions. [2018-10-27 03:56:22,309 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-10-27 03:56:22,309 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 175 [2018-10-27 03:56:22,310 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-27 03:56:22,474 INFO L225 Difference]: With dead ends: 56348 [2018-10-27 03:56:22,475 INFO L226 Difference]: Without dead ends: 38265 [2018-10-27 03:56:22,549 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2018-10-27 03:56:22,585 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38265 states. [2018-10-27 03:56:23,497 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38265 to 37203. [2018-10-27 03:56:23,497 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 37203 states. [2018-10-27 03:56:23,592 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37203 states to 37203 states and 50476 transitions. [2018-10-27 03:56:23,593 INFO L78 Accepts]: Start accepts. Automaton has 37203 states and 50476 transitions. Word has length 175 [2018-10-27 03:56:23,593 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-27 03:56:23,593 INFO L481 AbstractCegarLoop]: Abstraction has 37203 states and 50476 transitions. [2018-10-27 03:56:23,593 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-10-27 03:56:23,594 INFO L276 IsEmpty]: Start isEmpty. Operand 37203 states and 50476 transitions. [2018-10-27 03:56:23,601 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 196 [2018-10-27 03:56:23,604 INFO L367 BasicCegarLoop]: Found error trace [2018-10-27 03:56:23,604 INFO L375 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2018-10-27 03:56:23,604 INFO L424 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-27 03:56:23,604 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-27 03:56:23,605 INFO L82 PathProgramCache]: Analyzing trace with hash 573942238, now seen corresponding path program 1 times [2018-10-27 03:56:23,605 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-27 03:56:23,606 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 03:56:23,606 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-27 03:56:23,606 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 03:56:23,606 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-27 03:56:23,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-27 03:56:24,125 INFO L134 CoverageAnalysis]: Checked inductivity of 139 backedges. 66 proven. 68 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2018-10-27 03:56:24,125 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-27 03:56:24,126 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-10-27 03:56:24,127 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 196 with the following transitions: [2018-10-27 03:56:24,129 INFO L202 CegarAbsIntRunner]: [0], [1], [5227], [5234], [5242], [5250], [5258], [5266], [5274], [5282], [5290], [5298], [5306], [5314], [5322], [5330], [5338], [5346], [5354], [5362], [5370], [5378], [5386], [5394], [5402], [5410], [5418], [5426], [5434], [5442], [5446], [5448], [5451], [5459], [5467], [5475], [5483], [5491], [5499], [5507], [5515], [5523], [5531], [5539], [5547], [5555], [5563], [5571], [5579], [5587], [5595], [5603], [5611], [5619], [5627], [5635], [5643], [5651], [5659], [5667], [5675], [5683], [5691], [5699], [5707], [5715], [5727], [5731], [5742], [5745], [5746], [5750], [5754], [5758], [5762], [5766], [5770], [5774], [5778], [5781], [6802], [6806], [6810], [6816], [6820], [6822], [6837], [6838], [6839], [6841], [6842] [2018-10-27 03:56:24,220 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-10-27 03:56:24,220 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-10-27 03:56:26,689 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-10-27 03:56:26,690 INFO L272 AbstractInterpreter]: Visited 87 different actions 87 times. Never merged. Never widened. Never found a fixpoint. Largest state had 26 variables. [2018-10-27 03:56:26,700 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-27 03:56:26,700 INFO L398 sIntCurrentIteration]: Generating AbsInt predicates [2018-10-27 03:56:28,682 INFO L227 lantSequenceWeakener]: Weakened 187 states. On average, predicates are now at 75.53% of their original sizes. [2018-10-27 03:56:28,683 INFO L413 sIntCurrentIteration]: Unifying AI predicates [2018-10-27 03:56:29,151 INFO L415 sIntCurrentIteration]: We unified 194 AI predicates to 194 [2018-10-27 03:56:29,152 INFO L424 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-10-27 03:56:29,153 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-10-27 03:56:29,153 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [6] total 11 [2018-10-27 03:56:29,153 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-27 03:56:29,153 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-10-27 03:56:29,154 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-10-27 03:56:29,154 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2018-10-27 03:56:29,154 INFO L87 Difference]: Start difference. First operand 37203 states and 50476 transitions. Second operand 7 states. [2018-10-27 03:56:33,751 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. Received shutdown request... [2018-10-27 03:57:43,032 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-10-27 03:57:43,032 WARN L550 AbstractCegarLoop]: Verification canceled [2018-10-27 03:57:43,039 WARN L205 ceAbstractionStarter]: Timeout [2018-10-27 03:57:43,039 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 27.10 03:57:43 BoogieIcfgContainer [2018-10-27 03:57:43,039 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-10-27 03:57:43,040 INFO L168 Benchmark]: Toolchain (without parser) took 221710.90 ms. Allocated memory was 1.5 GB in the beginning and 4.2 GB in the end (delta: 2.6 GB). Free memory was 1.4 GB in the beginning and 1.7 GB in the end (delta: -292.3 MB). Peak memory consumption was 2.4 GB. Max. memory is 7.1 GB. [2018-10-27 03:57:43,041 INFO L168 Benchmark]: CDTParser took 0.21 ms. Allocated memory is still 1.5 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-10-27 03:57:43,042 INFO L168 Benchmark]: CACSL2BoogieTranslator took 3281.02 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.0 GB in the end (delta: 401.6 MB). Peak memory consumption was 401.6 MB. Max. memory is 7.1 GB. [2018-10-27 03:57:43,043 INFO L168 Benchmark]: Boogie Procedure Inliner took 739.72 ms. Allocated memory was 1.5 GB in the beginning and 2.4 GB in the end (delta: 877.1 MB). Free memory was 1.0 GB in the beginning and 2.3 GB in the end (delta: -1.3 GB). Peak memory consumption was 106.6 MB. Max. memory is 7.1 GB. [2018-10-27 03:57:43,044 INFO L168 Benchmark]: Boogie Preprocessor took 557.15 ms. Allocated memory is still 2.4 GB. Free memory was 2.3 GB in the beginning and 2.2 GB in the end (delta: 52.6 MB). Peak memory consumption was 52.6 MB. Max. memory is 7.1 GB. [2018-10-27 03:57:43,044 INFO L168 Benchmark]: RCFGBuilder took 20351.40 ms. Allocated memory was 2.4 GB in the beginning and 2.6 GB in the end (delta: 153.1 MB). Free memory was 2.2 GB in the beginning and 1.7 GB in the end (delta: 530.6 MB). Peak memory consumption was 683.7 MB. Max. memory is 7.1 GB. [2018-10-27 03:57:43,045 INFO L168 Benchmark]: TraceAbstraction took 196776.73 ms. Allocated memory was 2.6 GB in the beginning and 4.2 GB in the end (delta: 1.6 GB). Free memory was 1.7 GB in the beginning and 1.7 GB in the end (delta: 13.3 MB). Peak memory consumption was 1.6 GB. Max. memory is 7.1 GB. [2018-10-27 03:57:43,051 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21 ms. Allocated memory is still 1.5 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 3281.02 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.0 GB in the end (delta: 401.6 MB). Peak memory consumption was 401.6 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 739.72 ms. Allocated memory was 1.5 GB in the beginning and 2.4 GB in the end (delta: 877.1 MB). Free memory was 1.0 GB in the beginning and 2.3 GB in the end (delta: -1.3 GB). Peak memory consumption was 106.6 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 557.15 ms. Allocated memory is still 2.4 GB. Free memory was 2.3 GB in the beginning and 2.2 GB in the end (delta: 52.6 MB). Peak memory consumption was 52.6 MB. Max. memory is 7.1 GB. * RCFGBuilder took 20351.40 ms. Allocated memory was 2.4 GB in the beginning and 2.6 GB in the end (delta: 153.1 MB). Free memory was 2.2 GB in the beginning and 1.7 GB in the end (delta: 530.6 MB). Peak memory consumption was 683.7 MB. Max. memory is 7.1 GB. * TraceAbstraction took 196776.73 ms. Allocated memory was 2.6 GB in the beginning and 4.2 GB in the end (delta: 1.6 GB). Free memory was 1.7 GB in the beginning and 1.7 GB in the end (delta: 13.3 MB). Peak memory consumption was 1.6 GB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResultAtElement [Line: 115]: Timeout (TraceAbstraction) Unable to prove that call of __VERIFIER_error() unreachable (line 115). Cancelled while BasicCegarLoop was constructing difference of abstraction (37203states) and FLOYD_HOARE automaton (currently 7 states, 7 states before enhancement),while ReachableStatesComputation was computing reachable states (15706 states constructedinput type IntersectNwa). - StatisticsResult: Ultimate Automizer benchmark data CFG has 9 procedures, 1778 locations, 1 error locations. TIMEOUT Result, 196.6s OverallTime, 5 OverallIterations, 3 TraceHistogramMax, 187.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 2746 SDtfs, 22274 SDslu, 3187 SDs, 0 SdLazy, 40473 SolverSat, 10285 SolverUnsat, 1 SolverUnknown, 0 SolverNotchecked, 141.9s Time, PredicateUnifierStatistics: 2 DeclaredPredicates, 230 GetRequests, 199 SyntacticMatches, 3 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 1.7s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=37203occurred in iteration=4, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 2.5s AbstIntTime, 1 AbstIntIterations, 1 AbstIntStrong, 0.9950039651070578 AbsIntWeakeningRatio, 0.13917525773195877 AbsIntAvgWeakeningVarsNumRemoved, 1037.6958762886597 AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 1.9s AutomataMinimizationTime, 4 MinimizatonAttempts, 1178 StatesRemovedByMinimization, 4 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 1.8s InterpolantComputationTime, 652 NumberOfCodeBlocks, 652 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 647 ConstructedInterpolants, 0 QuantifiedInterpolants, 414696 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 5 InterpolantComputations, 4 PerfectInterpolantSequences, 170/238 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Completed graceful shutdown