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/Problem13_label46_true-unreach-call.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-df4b876 [2018-11-07 08:54:03,127 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-07 08:54:03,132 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-07 08:54:03,144 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-07 08:54:03,145 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-07 08:54:03,146 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-07 08:54:03,147 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-07 08:54:03,149 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-07 08:54:03,151 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-07 08:54:03,152 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-07 08:54:03,153 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-07 08:54:03,153 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-07 08:54:03,154 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-07 08:54:03,155 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-07 08:54:03,156 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-07 08:54:03,157 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-07 08:54:03,158 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-07 08:54:03,159 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-07 08:54:03,162 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-07 08:54:03,163 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-07 08:54:03,164 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-07 08:54:03,166 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-07 08:54:03,168 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-07 08:54:03,169 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-07 08:54:03,169 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-07 08:54:03,170 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-07 08:54:03,171 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-07 08:54:03,172 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-07 08:54:03,173 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-07 08:54:03,174 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-07 08:54:03,174 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-07 08:54:03,175 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-07 08:54:03,175 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-07 08:54:03,175 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-07 08:54:03,176 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-07 08:54:03,177 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-07 08:54:03,177 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 08:54:03,193 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-07 08:54:03,193 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-07 08:54:03,194 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-07 08:54:03,194 INFO L133 SettingsManager]: * User list type=DISABLED [2018-11-07 08:54:03,195 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-11-07 08:54:03,195 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-11-07 08:54:03,195 INFO L133 SettingsManager]: * Explicit value domain=true [2018-11-07 08:54:03,195 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-11-07 08:54:03,195 INFO L133 SettingsManager]: * Octagon Domain=false [2018-11-07 08:54:03,195 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-11-07 08:54:03,200 INFO L133 SettingsManager]: * Log string format=TERM [2018-11-07 08:54:03,200 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-11-07 08:54:03,200 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-11-07 08:54:03,200 INFO L133 SettingsManager]: * Interval Domain=false [2018-11-07 08:54:03,201 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-07 08:54:03,201 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-07 08:54:03,203 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-07 08:54:03,203 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-07 08:54:03,203 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-07 08:54:03,203 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-07 08:54:03,203 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-07 08:54:03,203 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-07 08:54:03,204 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-07 08:54:03,204 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-07 08:54:03,204 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-07 08:54:03,204 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-07 08:54:03,204 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-07 08:54:03,205 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-07 08:54:03,205 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-07 08:54:03,206 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-07 08:54:03,206 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-11-07 08:54:03,206 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-07 08:54:03,206 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-11-07 08:54:03,206 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-11-07 08:54:03,206 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-11-07 08:54:03,207 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-11-07 08:54:03,251 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-07 08:54:03,265 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-07 08:54:03,269 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-07 08:54:03,270 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-07 08:54:03,271 INFO L276 PluginConnector]: CDTParser initialized [2018-11-07 08:54:03,272 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem13_label46_true-unreach-call.c [2018-11-07 08:54:03,331 INFO L218 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9e1111a55/ac59fca38028475ea6838ad0855556c0/FLAGee985b075 [2018-11-07 08:54:04,084 INFO L298 CDTParser]: Found 1 translation units. [2018-11-07 08:54:04,085 INFO L158 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem13_label46_true-unreach-call.c [2018-11-07 08:54:04,122 INFO L346 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9e1111a55/ac59fca38028475ea6838ad0855556c0/FLAGee985b075 [2018-11-07 08:54:04,139 INFO L354 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9e1111a55/ac59fca38028475ea6838ad0855556c0 [2018-11-07 08:54:04,151 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-07 08:54:04,153 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-11-07 08:54:04,154 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-07 08:54:04,155 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-07 08:54:04,159 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-07 08:54:04,160 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 08:54:04" (1/1) ... [2018-11-07 08:54:04,164 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7ae48c7e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 08:54:04, skipping insertion in model container [2018-11-07 08:54:04,164 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 08:54:04" (1/1) ... [2018-11-07 08:54:04,177 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-07 08:54:04,390 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-11-07 08:54:05,976 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-11-07 08:54:05,982 INFO L189 MainTranslator]: Completed pre-run [2018-11-07 08:54:06,698 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-11-07 08:54:06,735 INFO L193 MainTranslator]: Completed translation [2018-11-07 08:54:06,736 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 08:54:06 WrapperNode [2018-11-07 08:54:06,736 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-07 08:54:06,737 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-07 08:54:06,737 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-07 08:54:06,738 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-07 08:54:06,748 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 08:54:06" (1/1) ... [2018-11-07 08:54:07,144 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 08:54:06" (1/1) ... [2018-11-07 08:54:07,154 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-07 08:54:07,154 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-07 08:54:07,154 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-07 08:54:07,155 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-07 08:54:07,167 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 08:54:06" (1/1) ... [2018-11-07 08:54:07,167 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 08:54:06" (1/1) ... [2018-11-07 08:54:07,232 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 08:54:06" (1/1) ... [2018-11-07 08:54:07,232 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 08:54:06" (1/1) ... [2018-11-07 08:54:07,387 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 08:54:06" (1/1) ... [2018-11-07 08:54:07,438 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 08:54:06" (1/1) ... [2018-11-07 08:54:07,475 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 08:54:06" (1/1) ... [2018-11-07 08:54:07,508 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-07 08:54:07,509 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-07 08:54:07,509 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-07 08:54:07,509 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-07 08:54:07,510 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 08:54:06" (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 08:54:07,582 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2018-11-07 08:54:07,582 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-07 08:54:07,582 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-07 08:54:07,582 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output4 [2018-11-07 08:54:07,583 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output4 [2018-11-07 08:54:07,583 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output3 [2018-11-07 08:54:07,583 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output3 [2018-11-07 08:54:07,583 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output2 [2018-11-07 08:54:07,583 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output2 [2018-11-07 08:54:07,584 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2018-11-07 08:54:07,584 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2018-11-07 08:54:07,584 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-07 08:54:07,584 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-07 08:54:07,586 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-07 08:54:07,586 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-07 08:54:19,461 INFO L276 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-07 08:54:19,461 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 08:54:19 BoogieIcfgContainer [2018-11-07 08:54:19,462 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-07 08:54:19,463 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-07 08:54:19,463 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-07 08:54:19,466 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-07 08:54:19,466 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.11 08:54:04" (1/3) ... [2018-11-07 08:54:19,467 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@78d1f53e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 08:54:19, skipping insertion in model container [2018-11-07 08:54:19,467 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 08:54:06" (2/3) ... [2018-11-07 08:54:19,468 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@78d1f53e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 08:54:19, skipping insertion in model container [2018-11-07 08:54:19,468 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 08:54:19" (3/3) ... [2018-11-07 08:54:19,470 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem13_label46_true-unreach-call.c [2018-11-07 08:54:19,480 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-07 08:54:19,499 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-11-07 08:54:19,522 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-11-07 08:54:19,586 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-07 08:54:19,587 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-07 08:54:19,587 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-07 08:54:19,587 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-07 08:54:19,587 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-07 08:54:19,587 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-07 08:54:19,587 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-07 08:54:19,588 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-07 08:54:19,643 INFO L276 IsEmpty]: Start isEmpty. Operand 1120 states. [2018-11-07 08:54:19,655 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2018-11-07 08:54:19,655 INFO L367 BasicCegarLoop]: Found error trace [2018-11-07 08:54:19,657 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] [2018-11-07 08:54:19,659 INFO L423 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-07 08:54:19,667 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 08:54:19,668 INFO L82 PathProgramCache]: Analyzing trace with hash -935987813, now seen corresponding path program 1 times [2018-11-07 08:54:19,670 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-07 08:54:19,732 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 08:54:19,732 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-07 08:54:19,732 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 08:54:19,733 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-07 08:54:19,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-07 08:54:20,273 WARN L179 SmtUtils]: Spent 164.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 4 [2018-11-07 08:54:20,396 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 08:54:20,399 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-07 08:54:20,399 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-11-07 08:54:20,400 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-07 08:54:20,406 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-11-07 08:54:20,425 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-07 08:54:20,426 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-07 08:54:20,430 INFO L87 Difference]: Start difference. First operand 1120 states. Second operand 3 states. [2018-11-07 08:54:29,378 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-07 08:54:29,378 INFO L93 Difference]: Finished difference Result 3101 states and 5730 transitions. [2018-11-07 08:54:29,379 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-07 08:54:29,380 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 73 [2018-11-07 08:54:29,381 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-07 08:54:29,418 INFO L225 Difference]: With dead ends: 3101 [2018-11-07 08:54:29,418 INFO L226 Difference]: Without dead ends: 1979 [2018-11-07 08:54:29,430 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 08:54:29,455 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1979 states. [2018-11-07 08:54:29,587 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1979 to 1959. [2018-11-07 08:54:29,589 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1959 states. [2018-11-07 08:54:29,603 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1959 states to 1959 states and 3535 transitions. [2018-11-07 08:54:29,605 INFO L78 Accepts]: Start accepts. Automaton has 1959 states and 3535 transitions. Word has length 73 [2018-11-07 08:54:29,606 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-07 08:54:29,607 INFO L480 AbstractCegarLoop]: Abstraction has 1959 states and 3535 transitions. [2018-11-07 08:54:29,607 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-11-07 08:54:29,607 INFO L276 IsEmpty]: Start isEmpty. Operand 1959 states and 3535 transitions. [2018-11-07 08:54:29,625 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 150 [2018-11-07 08:54:29,625 INFO L367 BasicCegarLoop]: Found error trace [2018-11-07 08:54:29,626 INFO L375 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2018-11-07 08:54:29,626 INFO L423 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-07 08:54:29,626 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 08:54:29,627 INFO L82 PathProgramCache]: Analyzing trace with hash 400656362, now seen corresponding path program 1 times [2018-11-07 08:54:29,627 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-07 08:54:29,629 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 08:54:29,629 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-07 08:54:29,630 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 08:54:29,630 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-07 08:54:29,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-07 08:54:29,971 INFO L134 CoverageAnalysis]: Checked inductivity of 66 backedges. 66 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-07 08:54:29,972 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-07 08:54:29,972 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-11-07 08:54:29,972 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-07 08:54:29,974 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-11-07 08:54:29,975 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-11-07 08:54:29,975 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-11-07 08:54:29,975 INFO L87 Difference]: Start difference. First operand 1959 states and 3535 transitions. Second operand 5 states. [2018-11-07 08:54:43,417 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-07 08:54:43,417 INFO L93 Difference]: Finished difference Result 5712 states and 10461 transitions. [2018-11-07 08:54:43,418 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-11-07 08:54:43,418 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 149 [2018-11-07 08:54:43,419 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-07 08:54:43,449 INFO L225 Difference]: With dead ends: 5712 [2018-11-07 08:54:43,449 INFO L226 Difference]: Without dead ends: 3759 [2018-11-07 08:54:43,457 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2018-11-07 08:54:43,463 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3759 states. [2018-11-07 08:54:43,595 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3759 to 3674. [2018-11-07 08:54:43,596 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3674 states. [2018-11-07 08:54:43,612 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3674 states to 3674 states and 6037 transitions. [2018-11-07 08:54:43,613 INFO L78 Accepts]: Start accepts. Automaton has 3674 states and 6037 transitions. Word has length 149 [2018-11-07 08:54:43,614 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-07 08:54:43,616 INFO L480 AbstractCegarLoop]: Abstraction has 3674 states and 6037 transitions. [2018-11-07 08:54:43,616 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-11-07 08:54:43,616 INFO L276 IsEmpty]: Start isEmpty. Operand 3674 states and 6037 transitions. [2018-11-07 08:54:43,620 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 151 [2018-11-07 08:54:43,620 INFO L367 BasicCegarLoop]: Found error trace [2018-11-07 08:54:43,620 INFO L375 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2018-11-07 08:54:43,621 INFO L423 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-07 08:54:43,621 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 08:54:43,621 INFO L82 PathProgramCache]: Analyzing trace with hash 1264699457, now seen corresponding path program 1 times [2018-11-07 08:54:43,621 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-07 08:54:43,622 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 08:54:43,622 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-07 08:54:43,623 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 08:54:43,623 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-07 08:54:43,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-07 08:54:43,835 INFO L134 CoverageAnalysis]: Checked inductivity of 66 backedges. 66 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-07 08:54:43,836 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-07 08:54:43,836 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-11-07 08:54:43,836 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-07 08:54:43,837 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-11-07 08:54:43,837 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-11-07 08:54:43,837 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-11-07 08:54:43,838 INFO L87 Difference]: Start difference. First operand 3674 states and 6037 transitions. Second operand 6 states. [2018-11-07 08:54:51,897 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-07 08:54:51,898 INFO L93 Difference]: Finished difference Result 10851 states and 18388 transitions. [2018-11-07 08:54:51,904 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-11-07 08:54:51,905 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 150 [2018-11-07 08:54:51,905 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-07 08:54:51,950 INFO L225 Difference]: With dead ends: 10851 [2018-11-07 08:54:51,950 INFO L226 Difference]: Without dead ends: 7183 [2018-11-07 08:54:51,966 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2018-11-07 08:54:51,972 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7183 states. [2018-11-07 08:54:52,136 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7183 to 7132. [2018-11-07 08:54:52,136 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7132 states. [2018-11-07 08:54:52,158 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7132 states to 7132 states and 10915 transitions. [2018-11-07 08:54:52,159 INFO L78 Accepts]: Start accepts. Automaton has 7132 states and 10915 transitions. Word has length 150 [2018-11-07 08:54:52,159 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-07 08:54:52,159 INFO L480 AbstractCegarLoop]: Abstraction has 7132 states and 10915 transitions. [2018-11-07 08:54:52,159 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-11-07 08:54:52,160 INFO L276 IsEmpty]: Start isEmpty. Operand 7132 states and 10915 transitions. [2018-11-07 08:54:52,163 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 175 [2018-11-07 08:54:52,163 INFO L367 BasicCegarLoop]: Found error trace [2018-11-07 08:54:52,163 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2018-11-07 08:54:52,164 INFO L423 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-07 08:54:52,164 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 08:54:52,164 INFO L82 PathProgramCache]: Analyzing trace with hash 1422847528, now seen corresponding path program 1 times [2018-11-07 08:54:52,164 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-07 08:54:52,165 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 08:54:52,166 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-07 08:54:52,166 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 08:54:52,166 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-07 08:54:52,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-07 08:54:52,365 INFO L134 CoverageAnalysis]: Checked inductivity of 66 backedges. 66 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-07 08:54:52,365 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-07 08:54:52,366 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-11-07 08:54:52,366 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-07 08:54:52,366 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-11-07 08:54:52,367 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-07 08:54:52,367 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-07 08:54:52,367 INFO L87 Difference]: Start difference. First operand 7132 states and 10915 transitions. Second operand 3 states. [2018-11-07 08:54:58,010 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-07 08:54:58,010 INFO L93 Difference]: Finished difference Result 20922 states and 33387 transitions. [2018-11-07 08:54:58,011 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-07 08:54:58,011 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 174 [2018-11-07 08:54:58,012 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-07 08:54:58,094 INFO L225 Difference]: With dead ends: 20922 [2018-11-07 08:54:58,094 INFO L226 Difference]: Without dead ends: 13796 [2018-11-07 08:54:58,147 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 08:54:58,161 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13796 states. [2018-11-07 08:54:58,645 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13796 to 13795. [2018-11-07 08:54:58,645 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13795 states. [2018-11-07 08:54:58,684 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13795 states to 13795 states and 20358 transitions. [2018-11-07 08:54:58,685 INFO L78 Accepts]: Start accepts. Automaton has 13795 states and 20358 transitions. Word has length 174 [2018-11-07 08:54:58,685 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-07 08:54:58,685 INFO L480 AbstractCegarLoop]: Abstraction has 13795 states and 20358 transitions. [2018-11-07 08:54:58,686 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-11-07 08:54:58,686 INFO L276 IsEmpty]: Start isEmpty. Operand 13795 states and 20358 transitions. [2018-11-07 08:54:58,695 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 228 [2018-11-07 08:54:58,696 INFO L367 BasicCegarLoop]: Found error trace [2018-11-07 08:54:58,696 INFO L375 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-07 08:54:58,696 INFO L423 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-07 08:54:58,697 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 08:54:58,697 INFO L82 PathProgramCache]: Analyzing trace with hash -1589052739, now seen corresponding path program 1 times [2018-11-07 08:54:58,697 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-07 08:54:58,698 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 08:54:58,698 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-07 08:54:58,698 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 08:54:58,699 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-07 08:54:58,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-07 08:54:59,008 WARN L179 SmtUtils]: Spent 156.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 4 [2018-11-07 08:54:59,449 INFO L134 CoverageAnalysis]: Checked inductivity of 208 backedges. 132 proven. 71 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2018-11-07 08:54:59,449 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-07 08:54:59,449 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-07 08:54:59,450 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 228 with the following transitions: [2018-11-07 08:54:59,453 INFO L202 CegarAbsIntRunner]: [0], [1], [2628], [2635], [2643], [2651], [2659], [2667], [2675], [2683], [2691], [2699], [2707], [2715], [2723], [2731], [2739], [2747], [2755], [2763], [2771], [2779], [2787], [2795], [2803], [2811], [2819], [2827], [2835], [2843], [2851], [2859], [2867], [2875], [2883], [2891], [2899], [2907], [2915], [2923], [2931], [2939], [2947], [2955], [2963], [2971], [2979], [2987], [2995], [3003], [3011], [3019], [3027], [3035], [3043], [3051], [3059], [3067], [3075], [3083], [3091], [3099], [3107], [3111], [3113], [3116], [3121], [3125], [3129], [3133], [3137], [3148], [3151], [3152], [3156], [3159], [4238], [4242], [4246], [4252], [4256], [4258], [4269], [4270], [4271], [4273], [4274] [2018-11-07 08:54:59,516 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-11-07 08:54:59,516 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-07 08:55:04,232 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-11-07 08:55:04,233 INFO L272 AbstractInterpreter]: Visited 83 different actions 83 times. Never merged. Never widened. Never found a fixpoint. Largest state had 26 variables. [2018-11-07 08:55:04,263 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 08:55:04,264 INFO L398 sIntCurrentIteration]: Generating AbsInt predicates [2018-11-07 08:55:07,491 INFO L227 lantSequenceWeakener]: Weakened 218 states. On average, predicates are now at 71.77% of their original sizes. [2018-11-07 08:55:07,492 INFO L413 sIntCurrentIteration]: Unifying AI predicates [2018-11-07 08:55:07,749 INFO L415 sIntCurrentIteration]: We unified 226 AI predicates to 226 [2018-11-07 08:55:07,749 INFO L424 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-11-07 08:55:07,750 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-11-07 08:55:07,750 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [6] total 10 [2018-11-07 08:55:07,751 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-07 08:55:07,757 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-11-07 08:55:07,757 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-11-07 08:55:07,757 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-11-07 08:55:07,758 INFO L87 Difference]: Start difference. First operand 13795 states and 20358 transitions. Second operand 6 states. Received shutdown request... [2018-11-07 08:58:01,214 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-11-07 08:58:01,214 WARN L549 AbstractCegarLoop]: Verification canceled [2018-11-07 08:58:01,220 WARN L205 ceAbstractionStarter]: Timeout [2018-11-07 08:58:01,220 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 07.11 08:58:01 BoogieIcfgContainer [2018-11-07 08:58:01,220 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-11-07 08:58:01,221 INFO L168 Benchmark]: Toolchain (without parser) took 237069.08 ms. Allocated memory was 1.5 GB in the beginning and 4.2 GB in the end (delta: 2.7 GB). Free memory was 1.4 GB in the beginning and 3.2 GB in the end (delta: -1.8 GB). Peak memory consumption was 902.3 MB. Max. memory is 7.1 GB. [2018-11-07 08:58:01,222 INFO L168 Benchmark]: CDTParser took 0.20 ms. Allocated memory is still 1.5 GB. Free memory is still 1.4 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-11-07 08:58:01,223 INFO L168 Benchmark]: CACSL2BoogieTranslator took 2582.12 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.2 GB in the end (delta: 243.1 MB). Peak memory consumption was 243.1 MB. Max. memory is 7.1 GB. [2018-11-07 08:58:01,224 INFO L168 Benchmark]: Boogie Procedure Inliner took 416.70 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 787.5 MB). Free memory was 1.2 GB in the beginning and 2.2 GB in the end (delta: -1.1 GB). Peak memory consumption was 67.7 MB. Max. memory is 7.1 GB. [2018-11-07 08:58:01,225 INFO L168 Benchmark]: Boogie Preprocessor took 354.50 ms. Allocated memory is still 2.3 GB. Free memory was 2.2 GB in the beginning and 2.2 GB in the end (delta: 36.8 MB). Peak memory consumption was 36.8 MB. Max. memory is 7.1 GB. [2018-11-07 08:58:01,226 INFO L168 Benchmark]: RCFGBuilder took 11952.57 ms. Allocated memory was 2.3 GB in the beginning and 2.5 GB in the end (delta: 171.4 MB). Free memory was 2.2 GB in the beginning and 2.2 GB in the end (delta: 20.1 MB). Peak memory consumption was 668.1 MB. Max. memory is 7.1 GB. [2018-11-07 08:58:01,227 INFO L168 Benchmark]: TraceAbstraction took 221757.65 ms. Allocated memory was 2.5 GB in the beginning and 4.2 GB in the end (delta: 1.7 GB). Free memory was 2.2 GB in the beginning and 3.2 GB in the end (delta: -979.6 MB). Peak memory consumption was 729.6 MB. Max. memory is 7.1 GB. [2018-11-07 08:58:01,233 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20 ms. Allocated memory is still 1.5 GB. Free memory is still 1.4 GB. There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 2582.12 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.2 GB in the end (delta: 243.1 MB). Peak memory consumption was 243.1 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 416.70 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 787.5 MB). Free memory was 1.2 GB in the beginning and 2.2 GB in the end (delta: -1.1 GB). Peak memory consumption was 67.7 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 354.50 ms. Allocated memory is still 2.3 GB. Free memory was 2.2 GB in the beginning and 2.2 GB in the end (delta: 36.8 MB). Peak memory consumption was 36.8 MB. Max. memory is 7.1 GB. * RCFGBuilder took 11952.57 ms. Allocated memory was 2.3 GB in the beginning and 2.5 GB in the end (delta: 171.4 MB). Free memory was 2.2 GB in the beginning and 2.2 GB in the end (delta: 20.1 MB). Peak memory consumption was 668.1 MB. Max. memory is 7.1 GB. * TraceAbstraction took 221757.65 ms. Allocated memory was 2.5 GB in the beginning and 4.2 GB in the end (delta: 1.7 GB). Free memory was 2.2 GB in the beginning and 3.2 GB in the end (delta: -979.6 MB). Peak memory consumption was 729.6 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResultAtElement [Line: 210]: Timeout (TraceAbstraction) Unable to prove that call of __VERIFIER_error() unreachable (line 210). Cancelled while BasicCegarLoop was constructing difference of abstraction (13795states) and FLOYD_HOARE automaton (currently 6 states, 6 states before enhancement),while ReachableStatesComputation was computing reachable states (14082 states constructedinput type IntersectNwa). - StatisticsResult: Ultimate Automizer benchmark data CFG has 7 procedures, 1120 locations, 1 error locations. TIMEOUT Result, 221.6s OverallTime, 5 OverallIterations, 3 TraceHistogramMax, 209.8s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 2777 SDtfs, 10303 SDslu, 1864 SDs, 0 SdLazy, 16440 SolverSat, 4781 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 185.1s Time, PredicateUnifierStatistics: 2 DeclaredPredicates, 256 GetRequests, 233 SyntacticMatches, 3 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.8s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=13795occurred in iteration=4, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 4.8s AbstIntTime, 1 AbstIntIterations, 1 AbstIntStrong, 0.9977227546725433 AbsIntWeakeningRatio, 0.11946902654867257 AbsIntAvgWeakeningVarsNumRemoved, 16.491150442477878 AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 1.0s AutomataMinimizationTime, 4 MinimizatonAttempts, 157 StatesRemovedByMinimization, 4 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 1.7s InterpolantComputationTime, 773 NumberOfCodeBlocks, 773 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 768 ConstructedInterpolants, 0 QuantifiedInterpolants, 349756 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 5 InterpolantComputations, 4 PerfectInterpolantSequences, 335/406 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Completed graceful shutdown