java -Xmx8000000000 -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -s ../../../trunk/examples/settings/default/taipan/svcomp-Reach-64bit-Taipan_Default-INT-LIM.epf -i ../../../trunk/examples/svcomp/eca-rers2012/Problem03_label59_true-unreach-call.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-63daa26 [2018-11-12 17:28:41,110 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-12 17:28:41,112 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-12 17:28:41,129 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-12 17:28:41,129 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-12 17:28:41,130 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-12 17:28:41,132 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-12 17:28:41,135 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-12 17:28:41,139 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-12 17:28:41,141 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-12 17:28:41,143 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-12 17:28:41,143 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-12 17:28:41,145 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-12 17:28:41,146 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-12 17:28:41,147 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-12 17:28:41,156 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-12 17:28:41,158 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-12 17:28:41,160 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-12 17:28:41,165 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-12 17:28:41,166 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-12 17:28:41,169 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-12 17:28:41,172 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-12 17:28:41,176 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-12 17:28:41,176 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-12 17:28:41,177 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-12 17:28:41,178 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-12 17:28:41,178 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-12 17:28:41,180 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-12 17:28:41,181 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-12 17:28:41,183 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-12 17:28:41,184 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-12 17:28:41,186 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-12 17:28:41,186 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-12 17:28:41,186 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-12 17:28:41,188 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-12 17:28:41,189 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-12 17:28:41,189 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/taipan/svcomp-Reach-64bit-Taipan_Default-INT-LIM.epf [2018-11-12 17:28:41,215 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-12 17:28:41,216 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-12 17:28:41,217 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-12 17:28:41,217 INFO L133 SettingsManager]: * User list type=DISABLED [2018-11-12 17:28:41,217 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-11-12 17:28:41,218 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-11-12 17:28:41,218 INFO L133 SettingsManager]: * Maximum recursion depth of evaluation operations=6 [2018-11-12 17:28:41,218 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-11-12 17:28:41,218 INFO L133 SettingsManager]: * Octagon Domain=false [2018-11-12 17:28:41,219 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-11-12 17:28:41,219 INFO L133 SettingsManager]: * Log string format=TERM [2018-11-12 17:28:41,219 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-11-12 17:28:41,219 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-11-12 17:28:41,220 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-12 17:28:41,221 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-12 17:28:41,221 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-12 17:28:41,221 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-12 17:28:41,221 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-12 17:28:41,221 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-12 17:28:41,222 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-12 17:28:41,222 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-12 17:28:41,222 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-12 17:28:41,222 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-12 17:28:41,222 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-12 17:28:41,223 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-12 17:28:41,224 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-12 17:28:41,224 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-12 17:28:41,225 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-12 17:28:41,225 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-12 17:28:41,225 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-11-12 17:28:41,225 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-12 17:28:41,225 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-11-12 17:28:41,226 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-11-12 17:28:41,226 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-11-12 17:28:41,226 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-11-12 17:28:41,281 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-12 17:28:41,295 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-12 17:28:41,299 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-12 17:28:41,300 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-12 17:28:41,301 INFO L276 PluginConnector]: CDTParser initialized [2018-11-12 17:28:41,302 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem03_label59_true-unreach-call.c [2018-11-12 17:28:41,383 INFO L218 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b0fbce83e/3069ff308fc143ad81bb66709f5278b3/FLAGc8ec33ff1 [2018-11-12 17:28:42,037 INFO L298 CDTParser]: Found 1 translation units. [2018-11-12 17:28:42,038 INFO L158 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem03_label59_true-unreach-call.c [2018-11-12 17:28:42,059 INFO L346 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b0fbce83e/3069ff308fc143ad81bb66709f5278b3/FLAGc8ec33ff1 [2018-11-12 17:28:42,080 INFO L354 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b0fbce83e/3069ff308fc143ad81bb66709f5278b3 [2018-11-12 17:28:42,092 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-12 17:28:42,095 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-11-12 17:28:42,095 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-12 17:28:42,096 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-12 17:28:42,100 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-12 17:28:42,101 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 05:28:42" (1/1) ... [2018-11-12 17:28:42,104 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6a177669 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 05:28:42, skipping insertion in model container [2018-11-12 17:28:42,104 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 05:28:42" (1/1) ... [2018-11-12 17:28:42,115 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-12 17:28:42,206 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-11-12 17:28:42,875 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-12 17:28:42,881 INFO L189 MainTranslator]: Completed pre-run [2018-11-12 17:28:43,168 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-12 17:28:43,194 INFO L193 MainTranslator]: Completed translation [2018-11-12 17:28:43,195 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 05:28:43 WrapperNode [2018-11-12 17:28:43,195 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-12 17:28:43,196 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-12 17:28:43,196 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-12 17:28:43,196 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-12 17:28:43,208 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 05:28:43" (1/1) ... [2018-11-12 17:28:43,406 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 05:28:43" (1/1) ... [2018-11-12 17:28:43,418 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-12 17:28:43,418 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-12 17:28:43,418 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-12 17:28:43,419 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-12 17:28:43,432 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 05:28:43" (1/1) ... [2018-11-12 17:28:43,432 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 05:28:43" (1/1) ... [2018-11-12 17:28:43,439 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 05:28:43" (1/1) ... [2018-11-12 17:28:43,440 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 05:28:43" (1/1) ... [2018-11-12 17:28:43,503 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 05:28:43" (1/1) ... [2018-11-12 17:28:43,530 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 05:28:43" (1/1) ... [2018-11-12 17:28:43,553 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 05:28:43" (1/1) ... [2018-11-12 17:28:43,568 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-12 17:28:43,569 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-12 17:28:43,569 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-12 17:28:43,569 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-12 17:28:43,570 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 05:28:43" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-12 17:28:43,645 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2018-11-12 17:28:43,645 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-12 17:28:43,645 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-12 17:28:43,646 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2018-11-12 17:28:43,646 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2018-11-12 17:28:43,646 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-12 17:28:43,646 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-12 17:28:43,646 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-12 17:28:43,647 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-12 17:28:48,830 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-12 17:28:48,831 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 05:28:48 BoogieIcfgContainer [2018-11-12 17:28:48,832 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-12 17:28:48,833 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-12 17:28:48,833 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-12 17:28:48,837 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-12 17:28:48,838 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.11 05:28:42" (1/3) ... [2018-11-12 17:28:48,839 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5a3bdbb9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 05:28:48, skipping insertion in model container [2018-11-12 17:28:48,839 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 05:28:43" (2/3) ... [2018-11-12 17:28:48,840 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5a3bdbb9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 05:28:48, skipping insertion in model container [2018-11-12 17:28:48,840 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 05:28:48" (3/3) ... [2018-11-12 17:28:48,842 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem03_label59_true-unreach-call.c [2018-11-12 17:28:48,854 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-12 17:28:48,863 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-11-12 17:28:48,882 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-11-12 17:28:48,922 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-12 17:28:48,923 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-12 17:28:48,923 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-12 17:28:48,923 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-12 17:28:48,923 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-12 17:28:48,923 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-12 17:28:48,924 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-12 17:28:48,924 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-12 17:28:48,956 INFO L276 IsEmpty]: Start isEmpty. Operand 312 states. [2018-11-12 17:28:48,974 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 182 [2018-11-12 17:28:48,974 INFO L367 BasicCegarLoop]: Found error trace [2018-11-12 17:28:48,976 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-12 17:28:48,978 INFO L423 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-12 17:28:48,985 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-12 17:28:48,985 INFO L82 PathProgramCache]: Analyzing trace with hash -209089196, now seen corresponding path program 1 times [2018-11-12 17:28:48,988 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-12 17:28:49,050 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-12 17:28:49,050 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-12 17:28:49,050 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-12 17:28:49,050 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-12 17:28:49,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-12 17:28:50,305 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-12 17:28:50,307 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-12 17:28:50,307 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-11-12 17:28:50,308 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-12 17:28:50,315 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-11-12 17:28:50,331 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-11-12 17:28:50,332 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-11-12 17:28:50,335 INFO L87 Difference]: Start difference. First operand 312 states. Second operand 4 states. [2018-11-12 17:28:53,486 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-12 17:28:53,487 INFO L93 Difference]: Finished difference Result 1084 states and 1945 transitions. [2018-11-12 17:28:53,487 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-11-12 17:28:53,488 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 181 [2018-11-12 17:28:53,490 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-12 17:28:53,516 INFO L225 Difference]: With dead ends: 1084 [2018-11-12 17:28:53,516 INFO L226 Difference]: Without dead ends: 766 [2018-11-12 17:28:53,525 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-11-12 17:28:53,547 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 766 states. [2018-11-12 17:28:53,642 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 766 to 524. [2018-11-12 17:28:53,644 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 524 states. [2018-11-12 17:28:53,652 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 524 states to 524 states and 918 transitions. [2018-11-12 17:28:53,657 INFO L78 Accepts]: Start accepts. Automaton has 524 states and 918 transitions. Word has length 181 [2018-11-12 17:28:53,658 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-12 17:28:53,658 INFO L480 AbstractCegarLoop]: Abstraction has 524 states and 918 transitions. [2018-11-12 17:28:53,658 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-11-12 17:28:53,661 INFO L276 IsEmpty]: Start isEmpty. Operand 524 states and 918 transitions. [2018-11-12 17:28:53,676 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 193 [2018-11-12 17:28:53,676 INFO L367 BasicCegarLoop]: Found error trace [2018-11-12 17:28:53,677 INFO L375 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-12 17:28:53,677 INFO L423 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-12 17:28:53,677 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-12 17:28:53,677 INFO L82 PathProgramCache]: Analyzing trace with hash -588288187, now seen corresponding path program 1 times [2018-11-12 17:28:53,681 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-12 17:28:53,682 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-12 17:28:53,682 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-12 17:28:53,682 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-12 17:28:53,683 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-12 17:28:53,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-12 17:28:53,985 WARN L179 SmtUtils]: Spent 154.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 4 [2018-11-12 17:28:54,242 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-12 17:28:54,243 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-12 17:28:54,243 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-11-12 17:28:54,243 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-12 17:28:54,247 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-11-12 17:28:54,249 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-11-12 17:28:54,249 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-11-12 17:28:54,250 INFO L87 Difference]: Start difference. First operand 524 states and 918 transitions. Second operand 5 states. [2018-11-12 17:28:57,420 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-12 17:28:57,421 INFO L93 Difference]: Finished difference Result 1614 states and 2930 transitions. [2018-11-12 17:28:57,433 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-11-12 17:28:57,433 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 192 [2018-11-12 17:28:57,433 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-12 17:28:57,445 INFO L225 Difference]: With dead ends: 1614 [2018-11-12 17:28:57,445 INFO L226 Difference]: Without dead ends: 1096 [2018-11-12 17:28:57,450 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2018-11-12 17:28:57,452 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1096 states. [2018-11-12 17:28:57,501 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1096 to 1073. [2018-11-12 17:28:57,502 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1073 states. [2018-11-12 17:28:57,508 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1073 states to 1073 states and 1769 transitions. [2018-11-12 17:28:57,508 INFO L78 Accepts]: Start accepts. Automaton has 1073 states and 1769 transitions. Word has length 192 [2018-11-12 17:28:57,509 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-12 17:28:57,509 INFO L480 AbstractCegarLoop]: Abstraction has 1073 states and 1769 transitions. [2018-11-12 17:28:57,509 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-11-12 17:28:57,509 INFO L276 IsEmpty]: Start isEmpty. Operand 1073 states and 1769 transitions. [2018-11-12 17:28:57,514 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 195 [2018-11-12 17:28:57,514 INFO L367 BasicCegarLoop]: Found error trace [2018-11-12 17:28:57,514 INFO L375 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-12 17:28:57,515 INFO L423 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-12 17:28:57,515 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-12 17:28:57,515 INFO L82 PathProgramCache]: Analyzing trace with hash 1719938640, now seen corresponding path program 1 times [2018-11-12 17:28:57,515 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-12 17:28:57,516 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-12 17:28:57,516 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-12 17:28:57,517 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-12 17:28:57,517 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-12 17:28:57,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-12 17:28:57,845 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-12 17:28:57,845 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-12 17:28:57,845 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-11-12 17:28:57,846 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-12 17:28:57,846 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-11-12 17:28:57,847 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-12 17:28:57,847 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-12 17:28:57,848 INFO L87 Difference]: Start difference. First operand 1073 states and 1769 transitions. Second operand 3 states. [2018-11-12 17:29:00,173 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-12 17:29:00,174 INFO L93 Difference]: Finished difference Result 3104 states and 5262 transitions. [2018-11-12 17:29:00,178 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-12 17:29:00,178 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 194 [2018-11-12 17:29:00,179 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-12 17:29:00,192 INFO L225 Difference]: With dead ends: 3104 [2018-11-12 17:29:00,193 INFO L226 Difference]: Without dead ends: 2037 [2018-11-12 17:29:00,199 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 [2018-11-12 17:29:00,201 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2037 states. [2018-11-12 17:29:00,264 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2037 to 2030. [2018-11-12 17:29:00,265 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2030 states. [2018-11-12 17:29:00,277 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2030 states to 2030 states and 3225 transitions. [2018-11-12 17:29:00,277 INFO L78 Accepts]: Start accepts. Automaton has 2030 states and 3225 transitions. Word has length 194 [2018-11-12 17:29:00,278 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-12 17:29:00,278 INFO L480 AbstractCegarLoop]: Abstraction has 2030 states and 3225 transitions. [2018-11-12 17:29:00,279 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-11-12 17:29:00,279 INFO L276 IsEmpty]: Start isEmpty. Operand 2030 states and 3225 transitions. [2018-11-12 17:29:00,288 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 203 [2018-11-12 17:29:00,289 INFO L367 BasicCegarLoop]: Found error trace [2018-11-12 17:29:00,289 INFO L375 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-12 17:29:00,289 INFO L423 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-12 17:29:00,290 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-12 17:29:00,290 INFO L82 PathProgramCache]: Analyzing trace with hash 284836524, now seen corresponding path program 1 times [2018-11-12 17:29:00,290 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-12 17:29:00,294 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-12 17:29:00,294 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-12 17:29:00,294 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-12 17:29:00,294 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-12 17:29:00,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-12 17:29:00,575 WARN L179 SmtUtils]: Spent 149.00 ms on a formula simplification. DAG size of input: 12 DAG size of output: 4 [2018-11-12 17:29:00,890 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 13 proven. 4 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2018-11-12 17:29:00,891 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-12 17:29:00,891 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-12 17:29:00,892 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 203 with the following transitions: [2018-11-12 17:29:00,895 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [5], [8], [12], [13], [16], [17], [21], [25], [29], [33], [37], [41], [45], [49], [53], [57], [61], [65], [76], [80], [84], [88], [92], [96], [100], [104], [108], [112], [116], [120], [124], [128], [132], [136], [140], [144], [148], [159], [163], [167], [171], [175], [179], [183], [187], [191], [202], [206], [210], [221], [225], [229], [233], [237], [241], [245], [249], [253], [257], [261], [265], [269], [273], [277], [281], [285], [289], [293], [297], [308], [312], [323], [327], [331], [335], [339], [343], [347], [351], [355], [359], [363], [367], [371], [375], [379], [383], [394], [398], [402], [406], [417], [421], [425], [429], [433], [437], [441], [445], [449], [453], [457], [461], [472], [476], [480], [484], [488], [492], [496], [500], [504], [508], [512], [516], [520], [524], [528], [532], [536], [540], [551], [555], [559], [570], [574], [585], [589], [593], [597], [601], [605], [609], [613], [624], [635], [646], [650], [654], [658], [662], [666], [673], [681], [689], [697], [705], [713], [721], [729], [737], [745], [753], [761], [769], [777], [785], [793], [801], [809], [817], [825], [833], [841], [849], [857], [865], [873], [881], [889], [897], [905], [909], [911], [1157], [1161], [1165], [1171], [1175], [1177], [1182], [1183], [1184], [1186], [1187] [2018-11-12 17:29:00,973 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, IntervalDomain] [2018-11-12 17:29:00,973 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-12 17:29:02,694 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-11-12 17:29:02,696 INFO L272 AbstractInterpreter]: Visited 182 different actions 182 times. Never merged. Never widened. Performed 3235 root evaluator evaluations with a maximum evaluation depth of 6. Performed 3235 inverse root evaluator evaluations with a maximum inverse evaluation depth of 6. Never found a fixpoint. Largest state had 88 variables. [2018-11-12 17:29:02,734 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-12 17:29:02,735 INFO L398 sIntCurrentIteration]: Generating AbsInt predicates [2018-11-12 17:29:03,982 INFO L227 lantSequenceWeakener]: Weakened 191 states. On average, predicates are now at 73% of their original sizes. [2018-11-12 17:29:03,982 INFO L413 sIntCurrentIteration]: Unifying AI predicates [2018-11-12 17:29:06,531 INFO L415 sIntCurrentIteration]: We unified 201 AI predicates to 201 [2018-11-12 17:29:06,531 INFO L424 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-11-12 17:29:06,532 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-11-12 17:29:06,533 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [25] imperfect sequences [6] total 29 [2018-11-12 17:29:06,533 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-12 17:29:06,534 INFO L459 AbstractCegarLoop]: Interpolant automaton has 25 states [2018-11-12 17:29:06,534 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2018-11-12 17:29:06,535 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=133, Invalid=467, Unknown=0, NotChecked=0, Total=600 [2018-11-12 17:29:06,535 INFO L87 Difference]: Start difference. First operand 2030 states and 3225 transitions. Second operand 25 states. [2018-11-12 17:29:50,989 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-12 17:29:50,990 INFO L93 Difference]: Finished difference Result 4264 states and 6779 transitions. [2018-11-12 17:29:50,990 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2018-11-12 17:29:50,990 INFO L78 Accepts]: Start accepts. Automaton has 25 states. Word has length 202 [2018-11-12 17:29:50,990 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-12 17:29:51,002 INFO L225 Difference]: With dead ends: 4264 [2018-11-12 17:29:51,002 INFO L226 Difference]: Without dead ends: 2240 [2018-11-12 17:29:51,009 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 204 GetRequests, 178 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 173 ImplicationChecksByTransitivity, 2.7s TimeCoverageRelationStatistics Valid=182, Invalid=574, Unknown=0, NotChecked=0, Total=756 [2018-11-12 17:29:51,011 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2240 states. [2018-11-12 17:29:51,061 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2240 to 2238. [2018-11-12 17:29:51,061 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2238 states. [2018-11-12 17:29:51,069 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2238 states to 2238 states and 3442 transitions. [2018-11-12 17:29:51,070 INFO L78 Accepts]: Start accepts. Automaton has 2238 states and 3442 transitions. Word has length 202 [2018-11-12 17:29:51,070 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-12 17:29:51,070 INFO L480 AbstractCegarLoop]: Abstraction has 2238 states and 3442 transitions. [2018-11-12 17:29:51,070 INFO L481 AbstractCegarLoop]: Interpolant automaton has 25 states. [2018-11-12 17:29:51,070 INFO L276 IsEmpty]: Start isEmpty. Operand 2238 states and 3442 transitions. [2018-11-12 17:29:51,078 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 215 [2018-11-12 17:29:51,078 INFO L367 BasicCegarLoop]: Found error trace [2018-11-12 17:29:51,079 INFO L375 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-12 17:29:51,079 INFO L423 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-12 17:29:51,080 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-12 17:29:51,080 INFO L82 PathProgramCache]: Analyzing trace with hash -576572177, now seen corresponding path program 1 times [2018-11-12 17:29:51,080 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-12 17:29:51,081 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-12 17:29:51,081 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-12 17:29:51,081 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-12 17:29:51,081 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-12 17:29:51,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-12 17:29:51,321 WARN L179 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 12 DAG size of output: 4 [2018-11-12 17:29:51,401 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 28 proven. 17 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2018-11-12 17:29:51,402 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-12 17:29:51,402 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-12 17:29:51,402 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 215 with the following transitions: [2018-11-12 17:29:51,403 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [5], [8], [12], [13], [16], [17], [21], [24], [25], [29], [33], [37], [41], [45], [49], [53], [57], [61], [65], [76], [80], [84], [88], [92], [96], [100], [104], [108], [112], [116], [120], [124], [128], [132], [136], [140], [144], [148], [159], [163], [167], [171], [175], [179], [183], [187], [191], [202], [206], [210], [221], [225], [229], [233], [237], [241], [245], [249], [253], [257], [261], [265], [269], [273], [277], [281], [285], [289], [293], [297], [308], [312], [323], [327], [331], [335], [339], [343], [347], [351], [355], [359], [363], [367], [371], [375], [379], [383], [394], [398], [402], [406], [417], [421], [425], [429], [433], [437], [441], [445], [449], [453], [457], [461], [472], [476], [480], [484], [488], [492], [496], [500], [504], [508], [512], [516], [520], [524], [528], [532], [536], [540], [551], [555], [559], [570], [574], [585], [589], [593], [597], [601], [605], [609], [613], [624], [635], [646], [650], [654], [658], [662], [666], [673], [681], [689], [697], [705], [713], [721], [729], [737], [745], [753], [761], [769], [777], [785], [793], [801], [809], [817], [825], [833], [841], [849], [857], [865], [873], [881], [889], [897], [905], [909], [911], [1157], [1161], [1165], [1171], [1175], [1177], [1182], [1183], [1184], [1186], [1187] [2018-11-12 17:29:51,413 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, IntervalDomain] [2018-11-12 17:29:51,413 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-12 17:29:54,771 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-11-12 17:29:54,772 INFO L272 AbstractInterpreter]: Visited 186 different actions 368 times. Merged at 5 different actions 7 times. Never widened. Performed 11714 root evaluator evaluations with a maximum evaluation depth of 6. Performed 11714 inverse root evaluator evaluations with a maximum inverse evaluation depth of 6. Found 1 fixpoints after 1 different actions. Largest state had 88 variables. [2018-11-12 17:29:54,782 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-12 17:29:54,782 INFO L398 sIntCurrentIteration]: Generating AbsInt predicates [2018-11-12 17:29:56,141 INFO L227 lantSequenceWeakener]: Weakened 90 states. On average, predicates are now at 76.86% of their original sizes. [2018-11-12 17:29:56,141 INFO L413 sIntCurrentIteration]: Unifying AI predicates [2018-11-12 17:30:03,784 INFO L415 sIntCurrentIteration]: We unified 213 AI predicates to 213 [2018-11-12 17:30:03,784 INFO L424 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-11-12 17:30:03,785 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-11-12 17:30:03,785 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [33] imperfect sequences [9] total 40 [2018-11-12 17:30:03,785 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-12 17:30:03,786 INFO L459 AbstractCegarLoop]: Interpolant automaton has 33 states [2018-11-12 17:30:03,786 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 33 interpolants. [2018-11-12 17:30:03,787 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=195, Invalid=861, Unknown=0, NotChecked=0, Total=1056 [2018-11-12 17:30:03,787 INFO L87 Difference]: Start difference. First operand 2238 states and 3442 transitions. Second operand 33 states. [2018-11-12 17:31:19,623 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-12 17:31:19,623 INFO L93 Difference]: Finished difference Result 4476 states and 7003 transitions. [2018-11-12 17:31:19,623 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2018-11-12 17:31:19,624 INFO L78 Accepts]: Start accepts. Automaton has 33 states. Word has length 214 [2018-11-12 17:31:19,624 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-12 17:31:19,635 INFO L225 Difference]: With dead ends: 4476 [2018-11-12 17:31:19,635 INFO L226 Difference]: Without dead ends: 2452 [2018-11-12 17:31:19,642 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 226 GetRequests, 133 SyntacticMatches, 49 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1099 ImplicationChecksByTransitivity, 7.9s TimeCoverageRelationStatistics Valid=374, Invalid=1696, Unknown=0, NotChecked=0, Total=2070 [2018-11-12 17:31:19,644 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2452 states. [2018-11-12 17:31:19,696 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2452 to 2449. [2018-11-12 17:31:19,696 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2449 states. [2018-11-12 17:31:19,705 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2449 states to 2449 states and 3670 transitions. [2018-11-12 17:31:19,705 INFO L78 Accepts]: Start accepts. Automaton has 2449 states and 3670 transitions. Word has length 214 [2018-11-12 17:31:19,706 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-12 17:31:19,706 INFO L480 AbstractCegarLoop]: Abstraction has 2449 states and 3670 transitions. [2018-11-12 17:31:19,706 INFO L481 AbstractCegarLoop]: Interpolant automaton has 33 states. [2018-11-12 17:31:19,706 INFO L276 IsEmpty]: Start isEmpty. Operand 2449 states and 3670 transitions. [2018-11-12 17:31:19,715 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 215 [2018-11-12 17:31:19,715 INFO L367 BasicCegarLoop]: Found error trace [2018-11-12 17:31:19,715 INFO L375 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-12 17:31:19,716 INFO L423 AbstractCegarLoop]: === Iteration 6 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-12 17:31:19,716 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-12 17:31:19,716 INFO L82 PathProgramCache]: Analyzing trace with hash 139297364, now seen corresponding path program 1 times [2018-11-12 17:31:19,716 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-12 17:31:19,717 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-12 17:31:19,717 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-12 17:31:19,717 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-12 17:31:19,718 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-12 17:31:19,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-12 17:31:20,032 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 32 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-12 17:31:20,032 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-12 17:31:20,032 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-12 17:31:20,033 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 215 with the following transitions: [2018-11-12 17:31:20,033 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [5], [8], [12], [13], [17], [21], [25], [29], [33], [37], [41], [45], [49], [53], [57], [61], [64], [65], [76], [80], [84], [88], [92], [96], [100], [104], [108], [112], [116], [120], [124], [128], [132], [136], [140], [144], [148], [159], [163], [167], [171], [175], [179], [183], [187], [191], [202], [206], [210], [221], [225], [229], [233], [237], [241], [245], [249], [253], [257], [261], [265], [269], [273], [277], [281], [285], [289], [293], [297], [308], [312], [323], [327], [331], [335], [339], [343], [347], [351], [355], [359], [363], [367], [371], [375], [379], [383], [394], [398], [402], [406], [417], [421], [425], [429], [433], [437], [441], [445], [449], [453], [457], [461], [472], [476], [480], [484], [488], [492], [496], [500], [504], [508], [512], [516], [520], [524], [528], [532], [536], [540], [551], [555], [559], [570], [574], [585], [589], [593], [597], [601], [605], [609], [613], [624], [635], [646], [650], [654], [658], [662], [666], [673], [681], [689], [697], [705], [713], [721], [729], [737], [745], [753], [761], [769], [777], [785], [793], [801], [809], [817], [825], [833], [841], [849], [857], [865], [873], [881], [889], [897], [905], [909], [911], [1157], [1161], [1165], [1171], [1175], [1177], [1182], [1183], [1184], [1186], [1187] [2018-11-12 17:31:20,041 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, IntervalDomain] [2018-11-12 17:31:20,041 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-12 17:31:21,851 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-11-12 17:31:21,851 INFO L272 AbstractInterpreter]: Visited 186 different actions 364 times. Merged at 4 different actions 4 times. Never widened. Performed 8264 root evaluator evaluations with a maximum evaluation depth of 6. Performed 8264 inverse root evaluator evaluations with a maximum inverse evaluation depth of 6. Found 1 fixpoints after 1 different actions. Largest state had 88 variables. [2018-11-12 17:31:21,865 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-12 17:31:21,866 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2018-11-12 17:31:21,866 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-12 17:31:21,866 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-11-12 17:31:21,876 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-12 17:31:21,876 INFO L286 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-11-12 17:31:22,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-12 17:31:22,063 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-12 17:31:22,301 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 32 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-12 17:31:22,301 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-11-12 17:31:23,145 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 32 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-12 17:31:23,170 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2018-11-12 17:31:23,171 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 11 [2018-11-12 17:31:23,171 INFO L249 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-11-12 17:31:23,171 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2018-11-12 17:31:23,172 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2018-11-12 17:31:23,172 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=76, Unknown=0, NotChecked=0, Total=110 [2018-11-12 17:31:23,172 INFO L87 Difference]: Start difference. First operand 2449 states and 3670 transitions. Second operand 8 states. [2018-11-12 17:31:27,091 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-12 17:31:27,091 INFO L93 Difference]: Finished difference Result 8331 states and 15541 transitions. [2018-11-12 17:31:27,094 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2018-11-12 17:31:27,094 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 214 [2018-11-12 17:31:27,094 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-12 17:31:27,143 INFO L225 Difference]: With dead ends: 8331 [2018-11-12 17:31:27,143 INFO L226 Difference]: Without dead ends: 6307 [2018-11-12 17:31:27,173 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 442 GetRequests, 428 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=76, Invalid=164, Unknown=0, NotChecked=0, Total=240 [2018-11-12 17:31:27,178 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6307 states. [2018-11-12 17:31:27,423 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6307 to 6186. [2018-11-12 17:31:27,423 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6186 states. [2018-11-12 17:31:27,453 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6186 states to 6186 states and 9953 transitions. [2018-11-12 17:31:27,453 INFO L78 Accepts]: Start accepts. Automaton has 6186 states and 9953 transitions. Word has length 214 [2018-11-12 17:31:27,453 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-12 17:31:27,453 INFO L480 AbstractCegarLoop]: Abstraction has 6186 states and 9953 transitions. [2018-11-12 17:31:27,454 INFO L481 AbstractCegarLoop]: Interpolant automaton has 8 states. [2018-11-12 17:31:27,454 INFO L276 IsEmpty]: Start isEmpty. Operand 6186 states and 9953 transitions. [2018-11-12 17:31:27,482 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 240 [2018-11-12 17:31:27,483 INFO L367 BasicCegarLoop]: Found error trace [2018-11-12 17:31:27,483 INFO L375 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-12 17:31:27,483 INFO L423 AbstractCegarLoop]: === Iteration 7 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-12 17:31:27,484 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-12 17:31:27,484 INFO L82 PathProgramCache]: Analyzing trace with hash 1069054914, now seen corresponding path program 1 times [2018-11-12 17:31:27,484 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-12 17:31:27,485 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-12 17:31:27,485 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-12 17:31:27,485 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-12 17:31:27,485 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-12 17:31:27,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-12 17:31:27,939 INFO L134 CoverageAnalysis]: Checked inductivity of 85 backedges. 70 proven. 8 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2018-11-12 17:31:27,939 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-12 17:31:27,940 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-12 17:31:27,940 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 240 with the following transitions: [2018-11-12 17:31:27,940 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [5], [8], [12], [13], [17], [21], [25], [29], [33], [37], [41], [45], [49], [53], [57], [61], [64], [65], [68], [71], [75], [76], [80], [84], [88], [92], [96], [100], [104], [108], [112], [116], [120], [124], [128], [132], [136], [140], [144], [148], [159], [163], [167], [171], [175], [179], [183], [187], [191], [202], [206], [210], [221], [225], [229], [233], [237], [241], [245], [249], [253], [257], [261], [265], [269], [273], [277], [281], [285], [289], [293], [297], [308], [312], [323], [327], [331], [335], [339], [343], [347], [351], [355], [359], [363], [367], [371], [375], [379], [383], [394], [398], [402], [406], [417], [421], [425], [429], [433], [437], [441], [445], [449], [453], [457], [461], [472], [476], [480], [484], [488], [492], [496], [500], [504], [508], [512], [516], [520], [524], [528], [532], [536], [540], [551], [555], [559], [570], [574], [585], [589], [593], [597], [601], [605], [609], [613], [624], [635], [646], [650], [654], [658], [662], [666], [673], [681], [689], [697], [705], [713], [721], [729], [737], [745], [753], [761], [769], [777], [785], [793], [801], [809], [817], [825], [833], [841], [849], [857], [865], [873], [881], [889], [897], [905], [909], [911], [1157], [1161], [1165], [1171], [1175], [1177], [1182], [1183], [1184], [1186], [1187] [2018-11-12 17:31:27,946 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, IntervalDomain] [2018-11-12 17:31:27,946 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-12 17:31:29,401 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-11-12 17:31:29,401 INFO L272 AbstractInterpreter]: Visited 187 different actions 366 times. Merged at 4 different actions 4 times. Never widened. Performed 8272 root evaluator evaluations with a maximum evaluation depth of 6. Performed 8272 inverse root evaluator evaluations with a maximum inverse evaluation depth of 6. Found 1 fixpoints after 1 different actions. Largest state had 88 variables. [2018-11-12 17:31:29,403 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-12 17:31:29,403 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2018-11-12 17:31:29,403 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-12 17:31:29,403 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-11-12 17:31:29,415 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-12 17:31:29,415 INFO L286 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-11-12 17:31:29,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-12 17:31:29,625 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-12 17:31:29,824 INFO L134 CoverageAnalysis]: Checked inductivity of 85 backedges. 64 proven. 2 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2018-11-12 17:31:29,824 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-11-12 17:31:30,010 INFO L134 CoverageAnalysis]: Checked inductivity of 85 backedges. 64 proven. 2 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2018-11-12 17:31:30,032 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2018-11-12 17:31:30,032 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 5, 5] total 11 [2018-11-12 17:31:30,032 INFO L249 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-11-12 17:31:30,033 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-11-12 17:31:30,034 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-11-12 17:31:30,034 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=83, Unknown=0, NotChecked=0, Total=110 [2018-11-12 17:31:30,034 INFO L87 Difference]: Start difference. First operand 6186 states and 9953 transitions. Second operand 9 states. [2018-11-12 17:31:32,625 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-12 17:31:32,625 INFO L93 Difference]: Finished difference Result 17910 states and 32073 transitions. [2018-11-12 17:31:32,625 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2018-11-12 17:31:32,626 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 239 [2018-11-12 17:31:32,626 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-12 17:31:32,722 INFO L225 Difference]: With dead ends: 17910 [2018-11-12 17:31:32,723 INFO L226 Difference]: Without dead ends: 12149 [2018-11-12 17:31:32,783 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 495 GetRequests, 478 SyntacticMatches, 1 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=87, Invalid=219, Unknown=0, NotChecked=0, Total=306 [2018-11-12 17:31:32,793 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12149 states. [2018-11-12 17:31:33,235 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12149 to 11213. [2018-11-12 17:31:33,235 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11213 states. [2018-11-12 17:31:33,290 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11213 states to 11213 states and 17277 transitions. [2018-11-12 17:31:33,291 INFO L78 Accepts]: Start accepts. Automaton has 11213 states and 17277 transitions. Word has length 239 [2018-11-12 17:31:33,291 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-12 17:31:33,291 INFO L480 AbstractCegarLoop]: Abstraction has 11213 states and 17277 transitions. [2018-11-12 17:31:33,292 INFO L481 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-11-12 17:31:33,292 INFO L276 IsEmpty]: Start isEmpty. Operand 11213 states and 17277 transitions. [2018-11-12 17:31:33,331 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 261 [2018-11-12 17:31:33,331 INFO L367 BasicCegarLoop]: Found error trace [2018-11-12 17:31:33,331 INFO L375 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-12 17:31:33,332 INFO L423 AbstractCegarLoop]: === Iteration 8 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-12 17:31:33,332 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-12 17:31:33,332 INFO L82 PathProgramCache]: Analyzing trace with hash -1828610292, now seen corresponding path program 1 times [2018-11-12 17:31:33,332 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-12 17:31:33,333 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-12 17:31:33,334 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-12 17:31:33,334 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-12 17:31:33,334 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-12 17:31:33,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-12 17:31:33,941 WARN L179 SmtUtils]: Spent 292.00 ms on a formula simplification that was a NOOP. DAG size: 4 [2018-11-12 17:31:33,978 INFO L134 CoverageAnalysis]: Checked inductivity of 108 backedges. 87 proven. 2 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2018-11-12 17:31:33,979 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-12 17:31:33,979 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-12 17:31:33,979 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 261 with the following transitions: [2018-11-12 17:31:33,980 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [5], [8], [12], [13], [17], [21], [25], [29], [33], [37], [41], [45], [49], [53], [57], [61], [64], [65], [76], [80], [84], [88], [92], [96], [100], [104], [108], [112], [116], [120], [124], [128], [132], [136], [140], [144], [148], [159], [163], [167], [171], [174], [175], [179], [183], [187], [191], [202], [206], [210], [221], [225], [229], [233], [237], [241], [245], [249], [253], [257], [261], [265], [269], [273], [277], [281], [285], [289], [293], [297], [308], [312], [323], [327], [331], [335], [339], [343], [347], [351], [355], [359], [363], [367], [371], [375], [379], [383], [394], [398], [402], [406], [417], [421], [425], [429], [433], [437], [441], [445], [449], [453], [457], [461], [472], [476], [480], [484], [488], [492], [496], [500], [504], [508], [512], [516], [520], [524], [528], [532], [536], [540], [551], [555], [559], [570], [574], [585], [589], [593], [597], [601], [605], [609], [613], [624], [635], [646], [650], [654], [658], [662], [666], [673], [681], [689], [697], [705], [713], [721], [729], [737], [745], [753], [761], [769], [777], [785], [793], [801], [809], [817], [825], [833], [841], [849], [857], [865], [873], [881], [889], [897], [905], [909], [911], [1157], [1161], [1165], [1171], [1175], [1177], [1182], [1183], [1184], [1186], [1187] [2018-11-12 17:31:33,986 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, IntervalDomain] [2018-11-12 17:31:33,986 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-12 17:31:37,491 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-11-12 17:31:37,492 INFO L272 AbstractInterpreter]: Visited 187 different actions 555 times. Merged at 7 different actions 17 times. Never widened. Performed 13470 root evaluator evaluations with a maximum evaluation depth of 6. Performed 13470 inverse root evaluator evaluations with a maximum inverse evaluation depth of 6. Found 3 fixpoints after 2 different actions. Largest state had 88 variables. [2018-11-12 17:31:37,499 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-12 17:31:37,499 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2018-11-12 17:31:37,499 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-12 17:31:37,499 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-11-12 17:31:37,508 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-12 17:31:37,508 INFO L286 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-11-12 17:31:37,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-12 17:31:37,714 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-12 17:31:38,055 INFO L134 CoverageAnalysis]: Checked inductivity of 108 backedges. 87 proven. 2 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2018-11-12 17:31:38,056 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-11-12 17:31:38,517 INFO L134 CoverageAnalysis]: Checked inductivity of 108 backedges. 87 proven. 2 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2018-11-12 17:31:38,540 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2018-11-12 17:31:38,540 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 10 [2018-11-12 17:31:38,540 INFO L249 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-11-12 17:31:38,541 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2018-11-12 17:31:38,543 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2018-11-12 17:31:38,543 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2018-11-12 17:31:38,543 INFO L87 Difference]: Start difference. First operand 11213 states and 17277 transitions. Second operand 8 states. [2018-11-12 17:31:46,120 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-12 17:31:46,120 INFO L93 Difference]: Finished difference Result 45225 states and 78469 transitions. [2018-11-12 17:31:46,120 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2018-11-12 17:31:46,120 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 260 [2018-11-12 17:31:46,121 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-12 17:31:46,336 INFO L225 Difference]: With dead ends: 45225 [2018-11-12 17:31:46,336 INFO L226 Difference]: Without dead ends: 34492 [2018-11-12 17:31:46,400 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 574 GetRequests, 540 SyntacticMatches, 1 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 290 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=233, Invalid=957, Unknown=0, NotChecked=0, Total=1190 [2018-11-12 17:31:46,431 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34492 states. [2018-11-12 17:31:47,511 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34492 to 33433. [2018-11-12 17:31:47,511 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 33433 states. [2018-11-12 17:31:47,622 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33433 states to 33433 states and 48097 transitions. [2018-11-12 17:31:47,622 INFO L78 Accepts]: Start accepts. Automaton has 33433 states and 48097 transitions. Word has length 260 [2018-11-12 17:31:47,623 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-12 17:31:47,623 INFO L480 AbstractCegarLoop]: Abstraction has 33433 states and 48097 transitions. [2018-11-12 17:31:47,623 INFO L481 AbstractCegarLoop]: Interpolant automaton has 8 states. [2018-11-12 17:31:47,623 INFO L276 IsEmpty]: Start isEmpty. Operand 33433 states and 48097 transitions. [2018-11-12 17:31:47,718 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 282 [2018-11-12 17:31:47,718 INFO L367 BasicCegarLoop]: Found error trace [2018-11-12 17:31:47,719 INFO L375 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-12 17:31:47,719 INFO L423 AbstractCegarLoop]: === Iteration 9 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-12 17:31:47,719 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-12 17:31:47,719 INFO L82 PathProgramCache]: Analyzing trace with hash 1896904569, now seen corresponding path program 1 times [2018-11-12 17:31:47,720 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-12 17:31:47,720 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-12 17:31:47,721 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-12 17:31:47,721 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-12 17:31:47,721 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-12 17:31:47,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-12 17:31:48,291 INFO L134 CoverageAnalysis]: Checked inductivity of 114 backedges. 112 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-12 17:31:48,292 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-12 17:31:48,292 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-12 17:31:48,292 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 282 with the following transitions: [2018-11-12 17:31:48,293 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [13], [17], [21], [25], [29], [33], [37], [41], [45], [49], [53], [57], [61], [64], [65], [76], [80], [84], [88], [92], [96], [100], [104], [108], [112], [116], [120], [124], [128], [132], [136], [140], [144], [148], [159], [163], [167], [171], [175], [179], [183], [187], [191], [202], [206], [210], [221], [225], [229], [233], [237], [241], [245], [249], [253], [257], [261], [265], [269], [273], [277], [281], [285], [289], [293], [297], [308], [312], [315], [320], [322], [323], [327], [331], [335], [339], [343], [347], [351], [355], [359], [363], [367], [371], [375], [379], [383], [394], [398], [402], [406], [417], [421], [425], [429], [433], [437], [441], [445], [449], [453], [457], [461], [472], [476], [480], [484], [488], [492], [496], [500], [504], [508], [512], [516], [520], [524], [528], [532], [536], [540], [551], [555], [559], [570], [574], [585], [589], [593], [597], [601], [605], [609], [613], [624], [635], [646], [650], [654], [658], [662], [666], [673], [681], [689], [697], [705], [713], [721], [729], [737], [745], [753], [761], [769], [777], [785], [793], [801], [809], [817], [825], [833], [841], [849], [857], [865], [873], [881], [889], [897], [905], [909], [911], [1157], [1161], [1165], [1171], [1175], [1177], [1182], [1183], [1184], [1186], [1187] [2018-11-12 17:31:48,299 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, IntervalDomain] [2018-11-12 17:31:48,299 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-12 17:31:51,380 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-11-12 17:31:51,380 INFO L272 AbstractInterpreter]: Visited 188 different actions 554 times. Merged at 7 different actions 15 times. Never widened. Performed 13009 root evaluator evaluations with a maximum evaluation depth of 6. Performed 13009 inverse root evaluator evaluations with a maximum inverse evaluation depth of 6. Found 3 fixpoints after 2 different actions. Largest state had 88 variables. [2018-11-12 17:31:51,389 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-12 17:31:51,389 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2018-11-12 17:31:51,389 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-12 17:31:51,389 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-11-12 17:31:51,398 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-12 17:31:51,398 INFO L286 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-11-12 17:31:51,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-12 17:31:51,596 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-12 17:31:52,320 WARN L179 SmtUtils]: Spent 287.00 ms on a formula simplification. DAG size of input: 12 DAG size of output: 10 [2018-11-12 17:31:52,540 INFO L134 CoverageAnalysis]: Checked inductivity of 114 backedges. 112 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-12 17:31:52,540 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-11-12 17:31:53,015 INFO L134 CoverageAnalysis]: Checked inductivity of 114 backedges. 112 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-12 17:31:53,048 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2018-11-12 17:31:53,049 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6] total 13 [2018-11-12 17:31:53,049 INFO L249 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-11-12 17:31:53,050 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2018-11-12 17:31:53,050 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2018-11-12 17:31:53,050 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=122, Unknown=0, NotChecked=0, Total=156 [2018-11-12 17:31:53,051 INFO L87 Difference]: Start difference. First operand 33433 states and 48097 transitions. Second operand 10 states. [2018-11-12 17:32:02,100 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-12 17:32:02,100 INFO L93 Difference]: Finished difference Result 83217 states and 134450 transitions. [2018-11-12 17:32:02,101 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 51 states. [2018-11-12 17:32:02,101 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 281 [2018-11-12 17:32:02,101 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-12 17:32:02,446 INFO L225 Difference]: With dead ends: 83217 [2018-11-12 17:32:02,447 INFO L226 Difference]: Without dead ends: 50206 [2018-11-12 17:32:02,600 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 636 GetRequests, 579 SyntacticMatches, 1 SemanticMatches, 56 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 989 ImplicationChecksByTransitivity, 2.0s TimeCoverageRelationStatistics Valid=646, Invalid=2660, Unknown=0, NotChecked=0, Total=3306 [2018-11-12 17:32:02,634 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 50206 states. [2018-11-12 17:32:04,011 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 50206 to 47992. [2018-11-12 17:32:04,012 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 47992 states. [2018-11-12 17:32:04,128 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47992 states to 47992 states and 64279 transitions. [2018-11-12 17:32:04,128 INFO L78 Accepts]: Start accepts. Automaton has 47992 states and 64279 transitions. Word has length 281 [2018-11-12 17:32:04,129 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-12 17:32:04,129 INFO L480 AbstractCegarLoop]: Abstraction has 47992 states and 64279 transitions. [2018-11-12 17:32:04,129 INFO L481 AbstractCegarLoop]: Interpolant automaton has 10 states. [2018-11-12 17:32:04,129 INFO L276 IsEmpty]: Start isEmpty. Operand 47992 states and 64279 transitions. [2018-11-12 17:32:04,164 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 294 [2018-11-12 17:32:04,164 INFO L367 BasicCegarLoop]: Found error trace [2018-11-12 17:32:04,165 INFO L375 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-12 17:32:04,165 INFO L423 AbstractCegarLoop]: === Iteration 10 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-12 17:32:04,165 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-12 17:32:04,165 INFO L82 PathProgramCache]: Analyzing trace with hash 1060268907, now seen corresponding path program 1 times [2018-11-12 17:32:04,165 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-12 17:32:04,166 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-12 17:32:04,166 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-12 17:32:04,166 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-12 17:32:04,167 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-12 17:32:04,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-12 17:32:04,709 INFO L134 CoverageAnalysis]: Checked inductivity of 113 backedges. 111 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-12 17:32:04,710 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-12 17:32:04,710 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-12 17:32:04,710 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 294 with the following transitions: [2018-11-12 17:32:04,711 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [5], [8], [12], [13], [17], [21], [25], [29], [33], [37], [41], [45], [49], [53], [57], [61], [65], [76], [80], [84], [88], [92], [96], [100], [104], [108], [112], [116], [120], [124], [128], [132], [136], [140], [144], [148], [159], [163], [167], [171], [175], [179], [183], [187], [191], [202], [206], [210], [221], [225], [229], [233], [237], [241], [245], [249], [253], [257], [261], [265], [269], [273], [277], [281], [285], [289], [293], [297], [308], [312], [323], [327], [331], [335], [339], [343], [347], [351], [355], [359], [363], [367], [371], [375], [379], [383], [394], [398], [402], [406], [417], [421], [425], [429], [433], [436], [437], [441], [445], [449], [453], [457], [461], [472], [476], [480], [484], [488], [492], [496], [500], [504], [508], [512], [516], [520], [524], [528], [532], [536], [540], [551], [555], [559], [570], [574], [585], [589], [593], [597], [601], [605], [609], [613], [624], [635], [646], [650], [654], [658], [662], [666], [673], [681], [689], [697], [705], [713], [721], [729], [737], [745], [753], [761], [769], [777], [785], [793], [801], [809], [817], [825], [833], [841], [849], [857], [865], [873], [881], [889], [897], [905], [909], [911], [1157], [1161], [1165], [1171], [1175], [1177], [1182], [1183], [1184], [1186], [1187] [2018-11-12 17:32:04,716 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, IntervalDomain] [2018-11-12 17:32:04,716 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-12 17:32:06,491 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-11-12 17:32:06,491 INFO L272 AbstractInterpreter]: Visited 185 different actions 364 times. Merged at 5 different actions 5 times. Never widened. Performed 7129 root evaluator evaluations with a maximum evaluation depth of 6. Performed 7129 inverse root evaluator evaluations with a maximum inverse evaluation depth of 6. Found 1 fixpoints after 1 different actions. Largest state had 88 variables. [2018-11-12 17:32:06,499 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-12 17:32:06,499 INFO L398 sIntCurrentIteration]: Generating AbsInt predicates [2018-11-12 17:32:07,765 INFO L227 lantSequenceWeakener]: Weakened 288 states. On average, predicates are now at 71.89% of their original sizes. [2018-11-12 17:32:07,765 INFO L413 sIntCurrentIteration]: Unifying AI predicates [2018-11-12 17:32:08,232 INFO L415 sIntCurrentIteration]: We unified 292 AI predicates to 292 [2018-11-12 17:32:08,232 INFO L424 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-11-12 17:32:08,233 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-11-12 17:32:08,233 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [23] imperfect sequences [5] total 26 [2018-11-12 17:32:08,233 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-12 17:32:08,234 INFO L459 AbstractCegarLoop]: Interpolant automaton has 23 states [2018-11-12 17:32:08,234 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2018-11-12 17:32:08,235 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=95, Invalid=411, Unknown=0, NotChecked=0, Total=506 [2018-11-12 17:32:08,235 INFO L87 Difference]: Start difference. First operand 47992 states and 64279 transitions. Second operand 23 states. Received shutdown request... [2018-11-12 17:32:30,219 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2018-11-12 17:32:30,220 WARN L549 AbstractCegarLoop]: Verification canceled [2018-11-12 17:32:30,226 WARN L205 ceAbstractionStarter]: Timeout [2018-11-12 17:32:30,226 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 12.11 05:32:30 BoogieIcfgContainer [2018-11-12 17:32:30,227 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-11-12 17:32:30,227 INFO L168 Benchmark]: Toolchain (without parser) took 228133.91 ms. Allocated memory was 1.5 GB in the beginning and 3.9 GB in the end (delta: 2.3 GB). Free memory was 1.4 GB in the beginning and 2.1 GB in the end (delta: -705.4 MB). Peak memory consumption was 1.6 GB. Max. memory is 7.1 GB. [2018-11-12 17:32:30,228 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. [2018-11-12 17:32:30,229 INFO L168 Benchmark]: CACSL2BoogieTranslator took 1100.05 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.3 GB in the end (delta: 74.0 MB). Peak memory consumption was 74.0 MB. Max. memory is 7.1 GB. [2018-11-12 17:32:30,230 INFO L168 Benchmark]: Boogie Procedure Inliner took 221.82 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 773.8 MB). Free memory was 1.3 GB in the beginning and 2.2 GB in the end (delta: -900.3 MB). Peak memory consumption was 39.3 MB. Max. memory is 7.1 GB. [2018-11-12 17:32:30,231 INFO L168 Benchmark]: Boogie Preprocessor took 150.56 ms. Allocated memory is still 2.3 GB. Free memory is still 2.2 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-11-12 17:32:30,231 INFO L168 Benchmark]: RCFGBuilder took 5262.78 ms. Allocated memory is still 2.3 GB. Free memory was 2.2 GB in the beginning and 2.0 GB in the end (delta: 257.5 MB). Peak memory consumption was 257.5 MB. Max. memory is 7.1 GB. [2018-11-12 17:32:30,232 INFO L168 Benchmark]: TraceAbstraction took 221393.73 ms. Allocated memory was 2.3 GB in the beginning and 3.9 GB in the end (delta: 1.6 GB). Free memory was 2.0 GB in the beginning and 2.1 GB in the end (delta: -136.7 MB). Peak memory consumption was 1.4 GB. Max. memory is 7.1 GB. [2018-11-12 17:32:30,236 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 1100.05 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.3 GB in the end (delta: 74.0 MB). Peak memory consumption was 74.0 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 221.82 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 773.8 MB). Free memory was 1.3 GB in the beginning and 2.2 GB in the end (delta: -900.3 MB). Peak memory consumption was 39.3 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 150.56 ms. Allocated memory is still 2.3 GB. Free memory is still 2.2 GB. There was no memory consumed. Max. memory is 7.1 GB. * RCFGBuilder took 5262.78 ms. Allocated memory is still 2.3 GB. Free memory was 2.2 GB in the beginning and 2.0 GB in the end (delta: 257.5 MB). Peak memory consumption was 257.5 MB. Max. memory is 7.1 GB. * TraceAbstraction took 221393.73 ms. Allocated memory was 2.3 GB in the beginning and 3.9 GB in the end (delta: 1.6 GB). Free memory was 2.0 GB in the beginning and 2.1 GB in the end (delta: -136.7 MB). Peak memory consumption was 1.4 GB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResultAtElement [Line: 1557]: Timeout (TraceAbstraction) Unable to prove that call of __VERIFIER_error() unreachable (line 1557). Cancelled while BasicCegarLoop was constructing difference of abstraction (47992states) and FLOYD_HOARE automaton (currently 14 states, 23 states before enhancement),while ReachableStatesComputation was computing reachable states (2492 states constructedinput type IntersectNwa). - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 312 locations, 1 error locations. TIMEOUT Result, 221.3s OverallTime, 10 OverallIterations, 4 TraceHistogramMax, 175.2s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 2286 SDtfs, 16832 SDslu, 3968 SDs, 0 SdLazy, 27615 SolverSat, 4983 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 111.1s Time, PredicateUnifierStatistics: 6 DeclaredPredicates, 2897 GetRequests, 2616 SyntacticMatches, 53 SemanticMatches, 228 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2755 ImplicationChecksByTransitivity, 16.7s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=47992occurred in iteration=9, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 16.9s AbstIntTime, 7 AbstIntIterations, 3 AbstIntStrong, 0.9991088110676073 AbsIntWeakeningRatio, 0.29461756373937675 AbsIntAvgWeakeningVarsNumRemoved, 52.022662889518415 AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 3.9s AutomataMinimizationTime, 9 MinimizatonAttempts, 4607 StatesRemovedByMinimization, 9 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.3s SsaConstructionTime, 1.0s SatisfiabilityAnalysisTime, 8.0s InterpolantComputationTime, 3264 NumberOfCodeBlocks, 3264 NumberOfCodeBlocksAsserted, 14 NumberOfCheckSat, 4240 ConstructedInterpolants, 0 QuantifiedInterpolants, 1804687 SizeOfPredicates, 15 NumberOfNonLiveVariables, 4600 ConjunctsInSsa, 17 ConjunctsInUnsatCore, 18 InterpolantComputations, 3 PerfectInterpolantSequences, 1171/1224 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Completed graceful shutdown