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/Problem12_label51_false-unreach-call.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-63daa26 [2018-11-12 16:19:42,056 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-12 16:19:42,061 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-12 16:19:42,082 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-12 16:19:42,082 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-12 16:19:42,084 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-12 16:19:42,086 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-12 16:19:42,091 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-12 16:19:42,092 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-12 16:19:42,095 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-12 16:19:42,097 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-12 16:19:42,097 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-12 16:19:42,098 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-12 16:19:42,099 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-12 16:19:42,100 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-12 16:19:42,101 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-12 16:19:42,102 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-12 16:19:42,104 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-12 16:19:42,106 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-12 16:19:42,107 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-12 16:19:42,109 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-12 16:19:42,110 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-12 16:19:42,112 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-12 16:19:42,113 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-12 16:19:42,113 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-12 16:19:42,114 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-12 16:19:42,115 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-12 16:19:42,116 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-12 16:19:42,116 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-12 16:19:42,118 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-12 16:19:42,118 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-12 16:19:42,118 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-12 16:19:42,119 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-12 16:19:42,119 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-12 16:19:42,120 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-12 16:19:42,121 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-12 16:19:42,121 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 16:19:42,137 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-12 16:19:42,139 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-12 16:19:42,140 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-12 16:19:42,140 INFO L133 SettingsManager]: * User list type=DISABLED [2018-11-12 16:19:42,140 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-11-12 16:19:42,140 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-11-12 16:19:42,143 INFO L133 SettingsManager]: * Maximum recursion depth of evaluation operations=6 [2018-11-12 16:19:42,143 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-11-12 16:19:42,143 INFO L133 SettingsManager]: * Octagon Domain=false [2018-11-12 16:19:42,143 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-11-12 16:19:42,143 INFO L133 SettingsManager]: * Log string format=TERM [2018-11-12 16:19:42,144 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-11-12 16:19:42,144 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-11-12 16:19:42,145 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-12 16:19:42,145 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-12 16:19:42,145 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-12 16:19:42,145 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-12 16:19:42,145 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-12 16:19:42,146 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-12 16:19:42,146 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-12 16:19:42,146 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-12 16:19:42,146 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-12 16:19:42,146 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-12 16:19:42,147 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-12 16:19:42,147 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-12 16:19:42,147 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-12 16:19:42,147 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-12 16:19:42,147 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-12 16:19:42,147 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-12 16:19:42,148 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-11-12 16:19:42,148 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-12 16:19:42,148 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-11-12 16:19:42,148 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-11-12 16:19:42,148 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-11-12 16:19:42,149 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-11-12 16:19:42,221 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-12 16:19:42,238 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-12 16:19:42,243 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-12 16:19:42,245 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-12 16:19:42,246 INFO L276 PluginConnector]: CDTParser initialized [2018-11-12 16:19:42,246 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem12_label51_false-unreach-call.c [2018-11-12 16:19:42,316 INFO L218 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/fb90a7dc5/ae74a70dd3c5421e96a7668ce0ac9da8/FLAG3612eaae8 [2018-11-12 16:19:43,093 INFO L298 CDTParser]: Found 1 translation units. [2018-11-12 16:19:43,094 INFO L158 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem12_label51_false-unreach-call.c [2018-11-12 16:19:43,131 INFO L346 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/fb90a7dc5/ae74a70dd3c5421e96a7668ce0ac9da8/FLAG3612eaae8 [2018-11-12 16:19:43,151 INFO L354 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/fb90a7dc5/ae74a70dd3c5421e96a7668ce0ac9da8 [2018-11-12 16:19:43,163 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-12 16:19:43,166 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-11-12 16:19:43,172 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-12 16:19:43,172 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-12 16:19:43,177 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-12 16:19:43,178 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 04:19:43" (1/1) ... [2018-11-12 16:19:43,182 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3aefa37d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 04:19:43, skipping insertion in model container [2018-11-12 16:19:43,182 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 04:19:43" (1/1) ... [2018-11-12 16:19:43,194 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-12 16:19:43,361 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-11-12 16:19:44,611 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-12 16:19:44,617 INFO L189 MainTranslator]: Completed pre-run [2018-11-12 16:19:45,274 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-12 16:19:45,311 INFO L193 MainTranslator]: Completed translation [2018-11-12 16:19:45,312 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 04:19:45 WrapperNode [2018-11-12 16:19:45,312 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-12 16:19:45,313 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-12 16:19:45,313 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-12 16:19:45,313 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-12 16:19:45,570 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 04:19:45" (1/1) ... [2018-11-12 16:19:45,629 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 04:19:45" (1/1) ... [2018-11-12 16:19:45,639 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-12 16:19:45,640 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-12 16:19:45,640 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-12 16:19:45,640 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-12 16:19:45,648 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 04:19:45" (1/1) ... [2018-11-12 16:19:45,648 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 04:19:45" (1/1) ... [2018-11-12 16:19:45,664 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 04:19:45" (1/1) ... [2018-11-12 16:19:45,665 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 04:19:45" (1/1) ... [2018-11-12 16:19:45,778 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 04:19:45" (1/1) ... [2018-11-12 16:19:45,827 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 04:19:45" (1/1) ... [2018-11-12 16:19:45,859 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 04:19:45" (1/1) ... [2018-11-12 16:19:45,887 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-12 16:19:45,888 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-12 16:19:45,888 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-12 16:19:45,888 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-12 16:19:45,889 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 04:19:45" (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 16:19:45,966 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2018-11-12 16:19:45,966 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-12 16:19:45,967 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-12 16:19:45,967 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output4 [2018-11-12 16:19:45,967 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output4 [2018-11-12 16:19:45,967 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output3 [2018-11-12 16:19:45,967 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output3 [2018-11-12 16:19:45,967 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output2 [2018-11-12 16:19:45,969 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output2 [2018-11-12 16:19:45,970 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2018-11-12 16:19:45,970 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2018-11-12 16:19:45,970 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-12 16:19:45,970 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-12 16:19:45,972 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-12 16:19:45,973 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-12 16:19:54,078 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-12 16:19:54,079 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 04:19:54 BoogieIcfgContainer [2018-11-12 16:19:54,079 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-12 16:19:54,080 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-12 16:19:54,081 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-12 16:19:54,084 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-12 16:19:54,084 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.11 04:19:43" (1/3) ... [2018-11-12 16:19:54,085 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4cb1643b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 04:19:54, skipping insertion in model container [2018-11-12 16:19:54,085 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 04:19:45" (2/3) ... [2018-11-12 16:19:54,086 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4cb1643b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 04:19:54, skipping insertion in model container [2018-11-12 16:19:54,086 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 04:19:54" (3/3) ... [2018-11-12 16:19:54,088 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem12_label51_false-unreach-call.c [2018-11-12 16:19:54,098 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-12 16:19:54,110 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-11-12 16:19:54,128 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-11-12 16:19:54,180 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-12 16:19:54,180 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-12 16:19:54,180 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-12 16:19:54,180 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-12 16:19:54,181 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-12 16:19:54,181 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-12 16:19:54,181 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-12 16:19:54,181 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-12 16:19:54,337 INFO L276 IsEmpty]: Start isEmpty. Operand 840 states. [2018-11-12 16:19:54,345 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2018-11-12 16:19:54,345 INFO L367 BasicCegarLoop]: Found error trace [2018-11-12 16:19:54,346 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-12 16:19:54,349 INFO L423 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-12 16:19:54,367 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-12 16:19:54,367 INFO L82 PathProgramCache]: Analyzing trace with hash 1101804500, now seen corresponding path program 1 times [2018-11-12 16:19:54,370 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-12 16:19:54,422 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-12 16:19:54,422 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-12 16:19:54,422 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-12 16:19:54,422 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-12 16:19:54,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-12 16:19:54,813 WARN L179 SmtUtils]: Spent 158.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 4 [2018-11-12 16:19:54,918 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 16:19:54,921 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-12 16:19:54,921 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-11-12 16:19:54,921 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-12 16:19:54,937 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-11-12 16:19:54,968 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-12 16:19:54,969 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-12 16:19:54,978 INFO L87 Difference]: Start difference. First operand 840 states. Second operand 3 states. [2018-11-12 16:20:02,556 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-12 16:20:02,557 INFO L93 Difference]: Finished difference Result 2446 states and 4700 transitions. [2018-11-12 16:20:02,557 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-12 16:20:02,559 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 18 [2018-11-12 16:20:02,559 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-12 16:20:02,599 INFO L225 Difference]: With dead ends: 2446 [2018-11-12 16:20:02,599 INFO L226 Difference]: Without dead ends: 1604 [2018-11-12 16:20:02,612 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 2 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-12 16:20:02,638 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1604 states. [2018-11-12 16:20:02,792 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1604 to 1604. [2018-11-12 16:20:02,794 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1604 states. [2018-11-12 16:20:02,807 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1604 states to 1604 states and 2909 transitions. [2018-11-12 16:20:02,810 INFO L78 Accepts]: Start accepts. Automaton has 1604 states and 2909 transitions. Word has length 18 [2018-11-12 16:20:02,810 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-12 16:20:02,811 INFO L480 AbstractCegarLoop]: Abstraction has 1604 states and 2909 transitions. [2018-11-12 16:20:02,811 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-11-12 16:20:02,811 INFO L276 IsEmpty]: Start isEmpty. Operand 1604 states and 2909 transitions. [2018-11-12 16:20:02,818 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2018-11-12 16:20:02,819 INFO L367 BasicCegarLoop]: Found error trace [2018-11-12 16:20:02,820 INFO L375 BasicCegarLoop]: trace histogram [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] [2018-11-12 16:20:02,820 INFO L423 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-12 16:20:02,821 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-12 16:20:02,821 INFO L82 PathProgramCache]: Analyzing trace with hash -907006918, now seen corresponding path program 1 times [2018-11-12 16:20:02,821 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-12 16:20:02,823 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-12 16:20:02,824 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-12 16:20:02,824 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-12 16:20:02,825 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-12 16:20:02,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-12 16:20:03,272 WARN L179 SmtUtils]: Spent 163.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 4 [2018-11-12 16:20:03,403 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-12 16:20:03,403 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-12 16:20:03,404 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-11-12 16:20:03,404 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-12 16:20:03,406 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-11-12 16:20:03,406 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-11-12 16:20:03,407 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-11-12 16:20:03,407 INFO L87 Difference]: Start difference. First operand 1604 states and 2909 transitions. Second operand 5 states. [2018-11-12 16:20:12,969 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-12 16:20:12,970 INFO L93 Difference]: Finished difference Result 4818 states and 8826 transitions. [2018-11-12 16:20:12,970 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-11-12 16:20:12,971 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 92 [2018-11-12 16:20:12,971 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-12 16:20:12,998 INFO L225 Difference]: With dead ends: 4818 [2018-11-12 16:20:12,998 INFO L226 Difference]: Without dead ends: 3220 [2018-11-12 16:20:13,004 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2018-11-12 16:20:13,009 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3220 states. [2018-11-12 16:20:13,093 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3220 to 3186. [2018-11-12 16:20:13,094 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3186 states. [2018-11-12 16:20:13,108 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3186 states to 3186 states and 5594 transitions. [2018-11-12 16:20:13,109 INFO L78 Accepts]: Start accepts. Automaton has 3186 states and 5594 transitions. Word has length 92 [2018-11-12 16:20:13,109 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-12 16:20:13,109 INFO L480 AbstractCegarLoop]: Abstraction has 3186 states and 5594 transitions. [2018-11-12 16:20:13,110 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-11-12 16:20:13,110 INFO L276 IsEmpty]: Start isEmpty. Operand 3186 states and 5594 transitions. [2018-11-12 16:20:13,113 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2018-11-12 16:20:13,114 INFO L367 BasicCegarLoop]: Found error trace [2018-11-12 16:20:13,114 INFO L375 BasicCegarLoop]: trace histogram [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] [2018-11-12 16:20:13,114 INFO L423 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-12 16:20:13,114 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-12 16:20:13,115 INFO L82 PathProgramCache]: Analyzing trace with hash -1469630269, now seen corresponding path program 1 times [2018-11-12 16:20:13,115 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-12 16:20:13,115 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-12 16:20:13,116 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-12 16:20:13,116 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-12 16:20:13,116 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-12 16:20:13,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-12 16:20:13,280 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-12 16:20:13,280 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-12 16:20:13,281 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-11-12 16:20:13,281 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-12 16:20:13,281 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-11-12 16:20:13,282 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-11-12 16:20:13,282 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2018-11-12 16:20:13,282 INFO L87 Difference]: Start difference. First operand 3186 states and 5594 transitions. Second operand 5 states. [2018-11-12 16:20:24,377 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-12 16:20:24,377 INFO L93 Difference]: Finished difference Result 11100 states and 19721 transitions. [2018-11-12 16:20:24,378 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-11-12 16:20:24,378 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 97 [2018-11-12 16:20:24,379 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-12 16:20:24,425 INFO L225 Difference]: With dead ends: 11100 [2018-11-12 16:20:24,426 INFO L226 Difference]: Without dead ends: 7920 [2018-11-12 16:20:24,442 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-11-12 16:20:24,448 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7920 states. [2018-11-12 16:20:24,633 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7920 to 7891. [2018-11-12 16:20:24,634 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7891 states. [2018-11-12 16:20:24,672 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7891 states to 7891 states and 11676 transitions. [2018-11-12 16:20:24,673 INFO L78 Accepts]: Start accepts. Automaton has 7891 states and 11676 transitions. Word has length 97 [2018-11-12 16:20:24,673 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-12 16:20:24,674 INFO L480 AbstractCegarLoop]: Abstraction has 7891 states and 11676 transitions. [2018-11-12 16:20:24,674 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-11-12 16:20:24,674 INFO L276 IsEmpty]: Start isEmpty. Operand 7891 states and 11676 transitions. [2018-11-12 16:20:24,684 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2018-11-12 16:20:24,684 INFO L367 BasicCegarLoop]: Found error trace [2018-11-12 16:20:24,685 INFO L375 BasicCegarLoop]: trace histogram [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] [2018-11-12 16:20:24,685 INFO L423 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-12 16:20:24,685 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-12 16:20:24,686 INFO L82 PathProgramCache]: Analyzing trace with hash 1193444487, now seen corresponding path program 1 times [2018-11-12 16:20:24,690 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-12 16:20:24,691 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-12 16:20:24,691 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-12 16:20:24,691 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-12 16:20:24,691 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-12 16:20:24,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-12 16:20:25,010 WARN L179 SmtUtils]: Spent 162.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 4 [2018-11-12 16:20:25,423 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-12 16:20:25,423 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-12 16:20:25,423 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-11-12 16:20:25,424 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-12 16:20:25,424 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-11-12 16:20:25,425 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-11-12 16:20:25,425 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-11-12 16:20:25,425 INFO L87 Difference]: Start difference. First operand 7891 states and 11676 transitions. Second operand 6 states. [2018-11-12 16:20:32,020 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-12 16:20:32,021 INFO L93 Difference]: Finished difference Result 19169 states and 29015 transitions. [2018-11-12 16:20:32,021 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-11-12 16:20:32,021 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 143 [2018-11-12 16:20:32,022 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-12 16:20:32,083 INFO L225 Difference]: With dead ends: 19169 [2018-11-12 16:20:32,083 INFO L226 Difference]: Without dead ends: 11284 [2018-11-12 16:20:32,113 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2018-11-12 16:20:32,125 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11284 states. [2018-11-12 16:20:32,408 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11284 to 11206. [2018-11-12 16:20:32,409 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11206 states. [2018-11-12 16:20:32,439 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11206 states to 11206 states and 15763 transitions. [2018-11-12 16:20:32,440 INFO L78 Accepts]: Start accepts. Automaton has 11206 states and 15763 transitions. Word has length 143 [2018-11-12 16:20:32,440 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-12 16:20:32,441 INFO L480 AbstractCegarLoop]: Abstraction has 11206 states and 15763 transitions. [2018-11-12 16:20:32,441 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-11-12 16:20:32,441 INFO L276 IsEmpty]: Start isEmpty. Operand 11206 states and 15763 transitions. [2018-11-12 16:20:32,445 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 173 [2018-11-12 16:20:32,446 INFO L367 BasicCegarLoop]: Found error trace [2018-11-12 16:20:32,446 INFO L375 BasicCegarLoop]: trace histogram [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] [2018-11-12 16:20:32,447 INFO L423 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-12 16:20:32,447 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-12 16:20:32,447 INFO L82 PathProgramCache]: Analyzing trace with hash 1195363482, now seen corresponding path program 1 times [2018-11-12 16:20:32,447 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-12 16:20:32,448 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-12 16:20:32,448 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-12 16:20:32,449 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-12 16:20:32,449 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-12 16:20:32,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-12 16:20:33,009 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-12 16:20:33,009 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-12 16:20:33,010 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-11-12 16:20:33,010 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-12 16:20:33,010 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-11-12 16:20:33,011 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-11-12 16:20:33,011 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2018-11-12 16:20:33,011 INFO L87 Difference]: Start difference. First operand 11206 states and 15763 transitions. Second operand 5 states. [2018-11-12 16:20:40,468 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-12 16:20:40,468 INFO L93 Difference]: Finished difference Result 33957 states and 49141 transitions. [2018-11-12 16:20:40,469 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-11-12 16:20:40,470 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 172 [2018-11-12 16:20:40,470 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-12 16:20:40,566 INFO L225 Difference]: With dead ends: 33957 [2018-11-12 16:20:40,566 INFO L226 Difference]: Without dead ends: 22757 [2018-11-12 16:20:40,602 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-11-12 16:20:40,625 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22757 states. [2018-11-12 16:20:41,089 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22757 to 22593. [2018-11-12 16:20:41,090 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 22593 states. [2018-11-12 16:20:41,158 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22593 states to 22593 states and 30219 transitions. [2018-11-12 16:20:41,159 INFO L78 Accepts]: Start accepts. Automaton has 22593 states and 30219 transitions. Word has length 172 [2018-11-12 16:20:41,159 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-12 16:20:41,159 INFO L480 AbstractCegarLoop]: Abstraction has 22593 states and 30219 transitions. [2018-11-12 16:20:41,160 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-11-12 16:20:41,160 INFO L276 IsEmpty]: Start isEmpty. Operand 22593 states and 30219 transitions. [2018-11-12 16:20:41,163 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 209 [2018-11-12 16:20:41,163 INFO L367 BasicCegarLoop]: Found error trace [2018-11-12 16:20:41,163 INFO L375 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2018-11-12 16:20:41,164 INFO L423 AbstractCegarLoop]: === Iteration 6 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-12 16:20:41,164 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-12 16:20:41,164 INFO L82 PathProgramCache]: Analyzing trace with hash -645247468, now seen corresponding path program 1 times [2018-11-12 16:20:41,164 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-12 16:20:41,165 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-12 16:20:41,165 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-12 16:20:41,166 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-12 16:20:41,166 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-12 16:20:41,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-12 16:20:41,603 WARN L179 SmtUtils]: Spent 138.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 4 [2018-11-12 16:20:41,990 INFO L134 CoverageAnalysis]: Checked inductivity of 109 backedges. 22 proven. 82 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2018-11-12 16:20:41,991 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-12 16:20:41,991 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-12 16:20:41,993 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 209 with the following transitions: [2018-11-12 16:20:41,997 INFO L202 CegarAbsIntRunner]: [0], [1], [1868], [1875], [1883], [1891], [1899], [1907], [1911], [1913], [1916], [1924], [1932], [1940], [1948], [1956], [1964], [1972], [1980], [1988], [1996], [2004], [2012], [2020], [2028], [2036], [2044], [2052], [2060], [2068], [2076], [2084], [2092], [2100], [2108], [2116], [2124], [2132], [2140], [2148], [2156], [2164], [2172], [2180], [2188], [2196], [2204], [2212], [2220], [2228], [2236], [2244], [2252], [2260], [2268], [2276], [2284], [2292], [2300], [2308], [2316], [2324], [2332], [2340], [2348], [2356], [2361], [2365], [2369], [2373], [2377], [2381], [2385], [2389], [2393], [2397], [2401], [2405], [2409], [2413], [2417], [2421], [2425], [2428], [2429], [2433], [2437], [2441], [2445], [2449], [2453], [2457], [2461], [2465], [2469], [2473], [2477], [2481], [2485], [2489], [2492], [3240], [3244], [3248], [3254], [3258], [3260], [3271], [3272], [3273], [3275], [3276] [2018-11-12 16:20:42,076 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, IntervalDomain] [2018-11-12 16:20:42,079 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-12 16:20:42,742 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-11-12 16:20:42,744 INFO L272 AbstractInterpreter]: Visited 108 different actions 108 times. Never merged. Never widened. Performed 1081 root evaluator evaluations with a maximum evaluation depth of 6. Performed 1081 inverse root evaluator evaluations with a maximum inverse evaluation depth of 6. Never found a fixpoint. Largest state had 26 variables. [2018-11-12 16:20:42,790 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-12 16:20:42,790 INFO L398 sIntCurrentIteration]: Generating AbsInt predicates [2018-11-12 16:20:43,347 INFO L227 lantSequenceWeakener]: Weakened 199 states. On average, predicates are now at 74.91% of their original sizes. [2018-11-12 16:20:43,348 INFO L413 sIntCurrentIteration]: Unifying AI predicates [2018-11-12 16:20:43,676 INFO L415 sIntCurrentIteration]: We unified 207 AI predicates to 207 [2018-11-12 16:20:43,677 INFO L424 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-11-12 16:20:43,678 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-11-12 16:20:43,678 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [8] imperfect sequences [6] total 12 [2018-11-12 16:20:43,678 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-12 16:20:43,679 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2018-11-12 16:20:43,679 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2018-11-12 16:20:43,679 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2018-11-12 16:20:43,679 INFO L87 Difference]: Start difference. First operand 22593 states and 30219 transitions. Second operand 8 states. [2018-11-12 16:20:49,085 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-11-12 16:21:13,230 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-12 16:21:13,231 INFO L93 Difference]: Finished difference Result 45950 states and 61282 transitions. [2018-11-12 16:21:13,231 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-11-12 16:21:13,231 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 208 [2018-11-12 16:21:13,231 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-12 16:21:13,304 INFO L225 Difference]: With dead ends: 45950 [2018-11-12 16:21:13,304 INFO L226 Difference]: Without dead ends: 23363 [2018-11-12 16:21:13,349 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 209 GetRequests, 201 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=32, Invalid=58, Unknown=0, NotChecked=0, Total=90 [2018-11-12 16:21:13,375 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23363 states. [2018-11-12 16:21:13,767 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23363 to 23361. [2018-11-12 16:21:13,768 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 23361 states. [2018-11-12 16:21:13,820 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23361 states to 23361 states and 30997 transitions. [2018-11-12 16:21:13,821 INFO L78 Accepts]: Start accepts. Automaton has 23361 states and 30997 transitions. Word has length 208 [2018-11-12 16:21:13,821 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-12 16:21:13,822 INFO L480 AbstractCegarLoop]: Abstraction has 23361 states and 30997 transitions. [2018-11-12 16:21:13,822 INFO L481 AbstractCegarLoop]: Interpolant automaton has 8 states. [2018-11-12 16:21:13,822 INFO L276 IsEmpty]: Start isEmpty. Operand 23361 states and 30997 transitions. [2018-11-12 16:21:13,827 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 269 [2018-11-12 16:21:13,828 INFO L367 BasicCegarLoop]: Found error trace [2018-11-12 16:21:13,828 INFO L375 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2018-11-12 16:21:13,829 INFO L423 AbstractCegarLoop]: === Iteration 7 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-12 16:21:13,829 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-12 16:21:13,829 INFO L82 PathProgramCache]: Analyzing trace with hash -1937456972, now seen corresponding path program 1 times [2018-11-12 16:21:13,829 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-12 16:21:13,830 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-12 16:21:13,830 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-12 16:21:13,830 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-12 16:21:13,830 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-12 16:21:13,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-12 16:21:14,158 WARN L179 SmtUtils]: Spent 158.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 4 [2018-11-12 16:21:14,854 INFO L134 CoverageAnalysis]: Checked inductivity of 126 backedges. 16 proven. 110 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-12 16:21:14,855 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-12 16:21:14,855 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-12 16:21:14,855 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 269 with the following transitions: [2018-11-12 16:21:14,856 INFO L202 CegarAbsIntRunner]: [0], [1], [1868], [1875], [1883], [1891], [1899], [1907], [1911], [1913], [1916], [1924], [1932], [1940], [1948], [1956], [1964], [1972], [1980], [1988], [1996], [2004], [2012], [2020], [2028], [2036], [2044], [2052], [2060], [2068], [2076], [2084], [2092], [2100], [2108], [2116], [2124], [2132], [2140], [2148], [2156], [2164], [2172], [2180], [2188], [2196], [2204], [2212], [2220], [2228], [2236], [2244], [2252], [2260], [2268], [2276], [2284], [2292], [2300], [2308], [2316], [2324], [2332], [2340], [2348], [2356], [2361], [2365], [2369], [2373], [2377], [2381], [2385], [2389], [2393], [2397], [2401], [2405], [2409], [2413], [2417], [2421], [2425], [2429], [2433], [2437], [2441], [2445], [2449], [2453], [2457], [2461], [2465], [2469], [2473], [2477], [2481], [2485], [2489], [2493], [2496], [2497], [2501], [2505], [2509], [2513], [2517], [2521], [2525], [2529], [2533], [2537], [2541], [2545], [2549], [2553], [2557], [2561], [2565], [2569], [2573], [2577], [2581], [2585], [2589], [2593], [2597], [2601], [2605], [2609], [2613], [2617], [2621], [2625], [2629], [2633], [2637], [2641], [2645], [2649], [2653], [2657], [2661], [2664], [3240], [3244], [3248], [3254], [3258], [3260], [3271], [3272], [3273], [3275], [3276] [2018-11-12 16:21:14,865 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, IntervalDomain] [2018-11-12 16:21:14,865 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-12 16:21:15,176 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-11-12 16:21:16,442 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-11-12 16:21:16,443 INFO L272 AbstractInterpreter]: Visited 155 different actions 455 times. Merged at 7 different actions 14 times. Never widened. Performed 8425 root evaluator evaluations with a maximum evaluation depth of 6. Performed 8425 inverse root evaluator evaluations with a maximum inverse evaluation depth of 6. Found 3 fixpoints after 2 different actions. Largest state had 26 variables. [2018-11-12 16:21:16,481 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-12 16:21:16,483 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2018-11-12 16:21:16,483 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-12 16:21:16,483 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 16:21:16,497 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-12 16:21:16,497 INFO L286 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-11-12 16:21:16,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-12 16:21:16,631 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-12 16:21:16,743 INFO L134 CoverageAnalysis]: Checked inductivity of 126 backedges. 25 proven. 0 refuted. 0 times theorem prover too weak. 101 trivial. 0 not checked. [2018-11-12 16:21:16,743 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-11-12 16:21:17,071 INFO L134 CoverageAnalysis]: Checked inductivity of 126 backedges. 25 proven. 0 refuted. 0 times theorem prover too weak. 101 trivial. 0 not checked. [2018-11-12 16:21:17,108 INFO L312 seRefinementStrategy]: Constructing automaton from 2 perfect and 1 imperfect interpolant sequences. [2018-11-12 16:21:17,109 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [8] total 9 [2018-11-12 16:21:17,109 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-12 16:21:17,109 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-11-12 16:21:17,110 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-12 16:21:17,110 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2018-11-12 16:21:17,110 INFO L87 Difference]: Start difference. First operand 23361 states and 30997 transitions. Second operand 3 states. [2018-11-12 16:21:24,870 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-12 16:21:24,870 INFO L93 Difference]: Finished difference Result 64630 states and 89746 transitions. [2018-11-12 16:21:24,877 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-12 16:21:24,877 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 268 [2018-11-12 16:21:24,878 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-12 16:21:25,104 INFO L225 Difference]: With dead ends: 64630 [2018-11-12 16:21:25,105 INFO L226 Difference]: Without dead ends: 42043 [2018-11-12 16:21:25,217 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 547 GetRequests, 536 SyntacticMatches, 4 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2018-11-12 16:21:25,254 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42043 states. [2018-11-12 16:21:26,208 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42043 to 42015. [2018-11-12 16:21:26,209 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 42015 states. [2018-11-12 16:21:26,313 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42015 states to 42015 states and 56061 transitions. [2018-11-12 16:21:26,314 INFO L78 Accepts]: Start accepts. Automaton has 42015 states and 56061 transitions. Word has length 268 [2018-11-12 16:21:26,315 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-12 16:21:26,315 INFO L480 AbstractCegarLoop]: Abstraction has 42015 states and 56061 transitions. [2018-11-12 16:21:26,315 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-11-12 16:21:26,315 INFO L276 IsEmpty]: Start isEmpty. Operand 42015 states and 56061 transitions. [2018-11-12 16:21:26,327 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 293 [2018-11-12 16:21:26,327 INFO L367 BasicCegarLoop]: Found error trace [2018-11-12 16:21:26,327 INFO L375 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-12 16:21:26,328 INFO L423 AbstractCegarLoop]: === Iteration 8 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-12 16:21:26,328 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-12 16:21:26,328 INFO L82 PathProgramCache]: Analyzing trace with hash 1436582150, now seen corresponding path program 1 times [2018-11-12 16:21:26,328 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-12 16:21:26,329 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-12 16:21:26,329 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-12 16:21:26,329 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-12 16:21:26,330 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-12 16:21:26,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-12 16:21:26,846 INFO L134 CoverageAnalysis]: Checked inductivity of 280 backedges. 112 proven. 94 refuted. 0 times theorem prover too weak. 74 trivial. 0 not checked. [2018-11-12 16:21:26,847 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-12 16:21:26,847 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-12 16:21:26,847 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 293 with the following transitions: [2018-11-12 16:21:26,847 INFO L202 CegarAbsIntRunner]: [0], [1], [1868], [1875], [1883], [1891], [1899], [1907], [1911], [1913], [1916], [1924], [1932], [1940], [1948], [1956], [1964], [1972], [1980], [1988], [1996], [2004], [2012], [2020], [2028], [2036], [2044], [2052], [2060], [2068], [2076], [2084], [2092], [2100], [2108], [2116], [2124], [2132], [2140], [2148], [2156], [2164], [2172], [2180], [2188], [2196], [2204], [2212], [2220], [2228], [2236], [2244], [2252], [2260], [2268], [2276], [2284], [2292], [2300], [2308], [2316], [2324], [2332], [2340], [2348], [2356], [2361], [2365], [2369], [2373], [2377], [2381], [2384], [2385], [2389], [2393], [2397], [2401], [2405], [2409], [2413], [2417], [2421], [2425], [2429], [2433], [2437], [2441], [2445], [2449], [2453], [2457], [2460], [2461], [2465], [2469], [2473], [2477], [2481], [2485], [2489], [2492], [3240], [3244], [3248], [3254], [3258], [3260], [3271], [3272], [3273], [3275], [3276] [2018-11-12 16:21:26,852 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, IntervalDomain] [2018-11-12 16:21:26,852 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-12 16:21:27,110 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-11-12 16:21:27,111 INFO L272 AbstractInterpreter]: Visited 112 different actions 217 times. Merged at 4 different actions 4 times. Never widened. Performed 2370 root evaluator evaluations with a maximum evaluation depth of 6. Performed 2370 inverse root evaluator evaluations with a maximum inverse evaluation depth of 6. Found 1 fixpoints after 1 different actions. Largest state had 26 variables. [2018-11-12 16:21:27,143 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-12 16:21:27,144 INFO L398 sIntCurrentIteration]: Generating AbsInt predicates [2018-11-12 16:21:28,117 INFO L227 lantSequenceWeakener]: Weakened 289 states. On average, predicates are now at 75.01% of their original sizes. [2018-11-12 16:21:28,117 INFO L413 sIntCurrentIteration]: Unifying AI predicates [2018-11-12 16:21:28,558 INFO L415 sIntCurrentIteration]: We unified 291 AI predicates to 291 [2018-11-12 16:21:28,559 INFO L424 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-11-12 16:21:28,559 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-11-12 16:21:28,559 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [11] imperfect sequences [6] total 15 [2018-11-12 16:21:28,559 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-12 16:21:28,560 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2018-11-12 16:21:28,560 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2018-11-12 16:21:28,560 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=79, Unknown=0, NotChecked=0, Total=110 [2018-11-12 16:21:28,560 INFO L87 Difference]: Start difference. First operand 42015 states and 56061 transitions. Second operand 11 states. [2018-11-12 16:21:32,823 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-11-12 16:22:06,464 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-12 16:22:06,464 INFO L93 Difference]: Finished difference Result 84798 states and 113061 transitions. [2018-11-12 16:22:06,464 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2018-11-12 16:22:06,465 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 292 [2018-11-12 16:22:06,465 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-12 16:22:06,606 INFO L225 Difference]: With dead ends: 84798 [2018-11-12 16:22:06,606 INFO L226 Difference]: Without dead ends: 43557 [2018-11-12 16:22:06,679 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 300 GetRequests, 282 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 49 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=98, Invalid=282, Unknown=0, NotChecked=0, Total=380 [2018-11-12 16:22:06,724 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 43557 states. [2018-11-12 16:22:07,477 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 43557 to 43554. [2018-11-12 16:22:07,478 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 43554 states. [2018-11-12 16:22:07,590 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43554 states to 43554 states and 57623 transitions. [2018-11-12 16:22:07,591 INFO L78 Accepts]: Start accepts. Automaton has 43554 states and 57623 transitions. Word has length 292 [2018-11-12 16:22:07,591 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-12 16:22:07,591 INFO L480 AbstractCegarLoop]: Abstraction has 43554 states and 57623 transitions. [2018-11-12 16:22:07,595 INFO L481 AbstractCegarLoop]: Interpolant automaton has 11 states. [2018-11-12 16:22:07,595 INFO L276 IsEmpty]: Start isEmpty. Operand 43554 states and 57623 transitions. [2018-11-12 16:22:07,607 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 324 [2018-11-12 16:22:07,608 INFO L367 BasicCegarLoop]: Found error trace [2018-11-12 16:22:07,608 INFO L375 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2018-11-12 16:22:07,608 INFO L423 AbstractCegarLoop]: === Iteration 9 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-12 16:22:07,611 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-12 16:22:07,611 INFO L82 PathProgramCache]: Analyzing trace with hash 1384573725, now seen corresponding path program 1 times [2018-11-12 16:22:07,611 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-12 16:22:07,612 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-12 16:22:07,612 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-12 16:22:07,613 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-12 16:22:07,613 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-12 16:22:07,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-12 16:22:07,978 WARN L179 SmtUtils]: Spent 141.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 4 [2018-11-12 16:22:08,136 INFO L134 CoverageAnalysis]: Checked inductivity of 172 backedges. 23 proven. 67 refuted. 0 times theorem prover too weak. 82 trivial. 0 not checked. [2018-11-12 16:22:08,137 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-12 16:22:08,137 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-12 16:22:08,137 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 324 with the following transitions: [2018-11-12 16:22:08,138 INFO L202 CegarAbsIntRunner]: [0], [1], [1868], [1875], [1883], [1891], [1899], [1907], [1911], [1913], [1916], [1924], [1932], [1940], [1948], [1956], [1964], [1972], [1980], [1988], [1996], [2004], [2012], [2020], [2028], [2036], [2044], [2052], [2060], [2068], [2076], [2084], [2092], [2100], [2108], [2116], [2124], [2132], [2140], [2148], [2156], [2164], [2172], [2180], [2188], [2196], [2204], [2212], [2220], [2228], [2236], [2244], [2252], [2260], [2268], [2276], [2284], [2292], [2300], [2308], [2316], [2324], [2332], [2340], [2348], [2356], [2361], [2365], [2369], [2373], [2377], [2381], [2385], [2389], [2393], [2397], [2401], [2405], [2409], [2413], [2417], [2421], [2425], [2429], [2433], [2437], [2441], [2445], [2449], [2453], [2457], [2461], [2465], [2469], [2473], [2477], [2481], [2485], [2489], [2493], [2497], [2501], [2505], [2509], [2513], [2517], [2521], [2525], [2529], [2533], [2537], [2541], [2545], [2549], [2553], [2557], [2561], [2565], [2569], [2573], [2577], [2581], [2585], [2589], [2593], [2597], [2601], [2605], [2609], [2613], [2617], [2621], [2625], [2629], [2633], [2637], [2641], [2645], [2649], [2653], [2657], [2661], [2665], [2669], [2673], [2677], [2680], [2681], [2685], [2689], [2693], [2697], [2700], [3240], [3244], [3248], [3254], [3258], [3260], [3271], [3272], [3273], [3275], [3276] [2018-11-12 16:22:08,143 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, IntervalDomain] [2018-11-12 16:22:08,143 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-12 16:22:08,322 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-11-12 16:22:08,577 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-11-12 16:22:08,578 INFO L272 AbstractInterpreter]: Visited 163 different actions 320 times. Merged at 5 different actions 5 times. Never widened. Performed 6729 root evaluator evaluations with a maximum evaluation depth of 6. Performed 6729 inverse root evaluator evaluations with a maximum inverse evaluation depth of 6. Found 1 fixpoints after 1 different actions. Largest state had 26 variables. [2018-11-12 16:22:08,582 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-12 16:22:08,582 INFO L398 sIntCurrentIteration]: Generating AbsInt predicates [2018-11-12 16:22:10,320 INFO L227 lantSequenceWeakener]: Weakened 51 states. On average, predicates are now at 76.56% of their original sizes. [2018-11-12 16:22:10,320 INFO L413 sIntCurrentIteration]: Unifying AI predicates [2018-11-12 16:22:10,726 INFO L415 sIntCurrentIteration]: We unified 322 AI predicates to 322 [2018-11-12 16:22:10,727 INFO L424 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-11-12 16:22:10,727 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-11-12 16:22:10,727 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [24] imperfect sequences [6] total 28 [2018-11-12 16:22:10,727 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-12 16:22:10,728 INFO L459 AbstractCegarLoop]: Interpolant automaton has 24 states [2018-11-12 16:22:10,728 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2018-11-12 16:22:10,728 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=117, Invalid=435, Unknown=0, NotChecked=0, Total=552 [2018-11-12 16:22:10,729 INFO L87 Difference]: Start difference. First operand 43554 states and 57623 transitions. Second operand 24 states. Received shutdown request... [2018-11-12 16:23:20,325 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2018-11-12 16:23:20,325 WARN L549 AbstractCegarLoop]: Verification canceled [2018-11-12 16:23:20,330 WARN L205 ceAbstractionStarter]: Timeout [2018-11-12 16:23:20,330 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 12.11 04:23:20 BoogieIcfgContainer [2018-11-12 16:23:20,331 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-11-12 16:23:20,331 INFO L168 Benchmark]: Toolchain (without parser) took 217166.80 ms. Allocated memory was 1.5 GB in the beginning and 4.7 GB in the end (delta: 3.2 GB). Free memory was 1.4 GB in the beginning and 3.1 GB in the end (delta: -1.7 GB). Peak memory consumption was 1.5 GB. Max. memory is 7.1 GB. [2018-11-12 16:23:20,332 INFO L168 Benchmark]: CDTParser took 0.20 ms. Allocated memory is still 1.5 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-11-12 16:23:20,333 INFO L168 Benchmark]: CACSL2BoogieTranslator took 2140.64 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.2 GB in the end (delta: 200.8 MB). Peak memory consumption was 200.8 MB. Max. memory is 7.1 GB. [2018-11-12 16:23:20,334 INFO L168 Benchmark]: Boogie Procedure Inliner took 326.43 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 801.6 MB). Free memory was 1.2 GB in the beginning and 2.3 GB in the end (delta: -1.1 GB). Peak memory consumption was 54.3 MB. Max. memory is 7.1 GB. [2018-11-12 16:23:20,335 INFO L168 Benchmark]: Boogie Preprocessor took 248.01 ms. Allocated memory is still 2.3 GB. Free memory was 2.3 GB in the beginning and 2.2 GB in the end (delta: 23.8 MB). Peak memory consumption was 23.8 MB. Max. memory is 7.1 GB. [2018-11-12 16:23:20,336 INFO L168 Benchmark]: RCFGBuilder took 8191.40 ms. Allocated memory is still 2.3 GB. Free memory was 2.2 GB in the beginning and 1.6 GB in the end (delta: 645.7 MB). Peak memory consumption was 645.7 MB. Max. memory is 7.1 GB. [2018-11-12 16:23:20,337 INFO L168 Benchmark]: TraceAbstraction took 206250.21 ms. Allocated memory was 2.3 GB in the beginning and 4.7 GB in the end (delta: 2.4 GB). Free memory was 1.6 GB in the beginning and 3.1 GB in the end (delta: -1.5 GB). Peak memory consumption was 851.9 MB. Max. memory is 7.1 GB. [2018-11-12 16:23:20,349 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20 ms. Allocated memory is still 1.5 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 2140.64 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.2 GB in the end (delta: 200.8 MB). Peak memory consumption was 200.8 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 326.43 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 801.6 MB). Free memory was 1.2 GB in the beginning and 2.3 GB in the end (delta: -1.1 GB). Peak memory consumption was 54.3 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 248.01 ms. Allocated memory is still 2.3 GB. Free memory was 2.3 GB in the beginning and 2.2 GB in the end (delta: 23.8 MB). Peak memory consumption was 23.8 MB. Max. memory is 7.1 GB. * RCFGBuilder took 8191.40 ms. Allocated memory is still 2.3 GB. Free memory was 2.2 GB in the beginning and 1.6 GB in the end (delta: 645.7 MB). Peak memory consumption was 645.7 MB. Max. memory is 7.1 GB. * TraceAbstraction took 206250.21 ms. Allocated memory was 2.3 GB in the beginning and 4.7 GB in the end (delta: 2.4 GB). Free memory was 1.6 GB in the beginning and 3.1 GB in the end (delta: -1.5 GB). Peak memory consumption was 851.9 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResultAtElement [Line: 45]: Timeout (TraceAbstraction) Unable to prove that call of __VERIFIER_error() unreachable (line 45). Cancelled while BasicCegarLoop was constructing difference of abstraction (43554states) and FLOYD_HOARE automaton (currently 32 states, 24 states before enhancement),while ReachableStatesComputation was computing reachable states (47488 states constructedinput type IntersectNwa). - StatisticsResult: Ultimate Automizer benchmark data CFG has 7 procedures, 840 locations, 1 error locations. TIMEOUT Result, 206.1s OverallTime, 9 OverallIterations, 4 TraceHistogramMax, 188.2s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 4499 SDtfs, 24537 SDslu, 1583 SDs, 0 SdLazy, 42165 SolverSat, 6316 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 93.2s Time, PredicateUnifierStatistics: 6 DeclaredPredicates, 1431 GetRequests, 1331 SyntacticMatches, 8 SemanticMatches, 92 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 509 ImplicationChecksByTransitivity, 4.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=43554occurred in iteration=8, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 3.1s AbstIntTime, 4 AbstIntIterations, 3 AbstIntStrong, 0.9973796738786133 AbsIntWeakeningRatio, 0.10609756097560975 AbsIntAvgWeakeningVarsNumRemoved, 17.48048780487805 AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 3.8s AutomataMinimizationTime, 8 MinimizatonAttempts, 338 StatesRemovedByMinimization, 7 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.1s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 5.0s InterpolantComputationTime, 1881 NumberOfCodeBlocks, 1881 NumberOfCodeBlocksAsserted, 10 NumberOfCheckSat, 2138 ConstructedInterpolants, 0 QuantifiedInterpolants, 1510269 SizeOfPredicates, 2 NumberOfNonLiveVariables, 480 ConjunctsInSsa, 4 ConjunctsInUnsatCore, 11 InterpolantComputations, 7 PerfectInterpolantSequences, 630/983 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Completed graceful shutdown