java -Xmx8000000000 -jar /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -s ../../../trunk/examples/settings/default/taipan/svcomp-Reach-64bit-Taipan_Default.epf -i ../../../trunk/examples/svcomp/eca-rers2012/Problem13_label41_true-unreach-call.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-1dbac8b [2018-10-27 02:56:48,140 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-10-27 02:56:48,142 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-10-27 02:56:48,154 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-10-27 02:56:48,154 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-10-27 02:56:48,155 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-10-27 02:56:48,157 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-10-27 02:56:48,158 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-10-27 02:56:48,160 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-10-27 02:56:48,161 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-10-27 02:56:48,162 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-10-27 02:56:48,162 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-10-27 02:56:48,163 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-10-27 02:56:48,164 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-10-27 02:56:48,165 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-10-27 02:56:48,166 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-10-27 02:56:48,167 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-10-27 02:56:48,169 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-10-27 02:56:48,171 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-10-27 02:56:48,173 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-10-27 02:56:48,177 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-10-27 02:56:48,178 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-10-27 02:56:48,180 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-10-27 02:56:48,180 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-10-27 02:56:48,184 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-10-27 02:56:48,185 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-10-27 02:56:48,186 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-10-27 02:56:48,189 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-10-27 02:56:48,190 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-10-27 02:56:48,191 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-10-27 02:56:48,192 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-10-27 02:56:48,193 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-10-27 02:56:48,193 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-10-27 02:56:48,193 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-10-27 02:56:48,194 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-10-27 02:56:48,195 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-10-27 02:56:48,195 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/../../../trunk/examples/settings/default/taipan/svcomp-Reach-64bit-Taipan_Default.epf [2018-10-27 02:56:48,211 INFO L110 SettingsManager]: Loading preferences was successful [2018-10-27 02:56:48,211 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-10-27 02:56:48,212 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-10-27 02:56:48,212 INFO L133 SettingsManager]: * User list type=DISABLED [2018-10-27 02:56:48,213 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-10-27 02:56:48,213 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-10-27 02:56:48,213 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-10-27 02:56:48,213 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-10-27 02:56:48,213 INFO L133 SettingsManager]: * Log string format=TERM [2018-10-27 02:56:48,214 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-10-27 02:56:48,214 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-10-27 02:56:48,214 INFO L133 SettingsManager]: * Interval Domain=false [2018-10-27 02:56:48,215 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-10-27 02:56:48,215 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-10-27 02:56:48,215 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-10-27 02:56:48,215 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-10-27 02:56:48,215 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-10-27 02:56:48,215 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-10-27 02:56:48,216 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-10-27 02:56:48,216 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-10-27 02:56:48,216 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-10-27 02:56:48,216 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-10-27 02:56:48,216 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-10-27 02:56:48,217 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-10-27 02:56:48,217 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-10-27 02:56:48,217 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-10-27 02:56:48,217 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-10-27 02:56:48,217 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-10-27 02:56:48,218 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-10-27 02:56:48,218 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-10-27 02:56:48,218 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-10-27 02:56:48,218 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-10-27 02:56:48,218 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-10-27 02:56:48,219 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-10-27 02:56:48,264 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-10-27 02:56:48,278 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-10-27 02:56:48,282 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-10-27 02:56:48,283 INFO L271 PluginConnector]: Initializing CDTParser... [2018-10-27 02:56:48,284 INFO L276 PluginConnector]: CDTParser initialized [2018-10-27 02:56:48,285 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem13_label41_true-unreach-call.c [2018-10-27 02:56:48,344 INFO L218 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/856a09396/730311eafe1f4fb5a24c3155def2c84c/FLAGfbbaa2462 [2018-10-27 02:56:49,097 INFO L298 CDTParser]: Found 1 translation units. [2018-10-27 02:56:49,098 INFO L158 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem13_label41_true-unreach-call.c [2018-10-27 02:56:49,133 INFO L346 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/856a09396/730311eafe1f4fb5a24c3155def2c84c/FLAGfbbaa2462 [2018-10-27 02:56:49,156 INFO L354 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/856a09396/730311eafe1f4fb5a24c3155def2c84c [2018-10-27 02:56:49,168 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-10-27 02:56:49,171 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-10-27 02:56:49,172 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-10-27 02:56:49,172 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-10-27 02:56:49,178 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-10-27 02:56:49,179 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.10 02:56:49" (1/1) ... [2018-10-27 02:56:49,183 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@8de4687 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 02:56:49, skipping insertion in model container [2018-10-27 02:56:49,183 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.10 02:56:49" (1/1) ... [2018-10-27 02:56:49,194 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-10-27 02:56:49,378 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-10-27 02:56:50,799 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-27 02:56:50,804 INFO L189 MainTranslator]: Completed pre-run [2018-10-27 02:56:51,510 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-27 02:56:51,555 INFO L193 MainTranslator]: Completed translation [2018-10-27 02:56:51,555 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 02:56:51 WrapperNode [2018-10-27 02:56:51,556 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-10-27 02:56:51,557 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-10-27 02:56:51,557 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-10-27 02:56:51,557 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-10-27 02:56:51,568 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 02:56:51" (1/1) ... [2018-10-27 02:56:51,666 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 02:56:51" (1/1) ... [2018-10-27 02:56:52,176 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-10-27 02:56:52,177 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-10-27 02:56:52,177 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-10-27 02:56:52,177 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-10-27 02:56:52,188 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 02:56:51" (1/1) ... [2018-10-27 02:56:52,188 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 02:56:51" (1/1) ... [2018-10-27 02:56:52,233 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 02:56:51" (1/1) ... [2018-10-27 02:56:52,233 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 02:56:51" (1/1) ... [2018-10-27 02:56:52,394 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 02:56:51" (1/1) ... [2018-10-27 02:56:52,438 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 02:56:51" (1/1) ... [2018-10-27 02:56:52,484 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 02:56:51" (1/1) ... [2018-10-27 02:56:52,531 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-10-27 02:56:52,532 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-10-27 02:56:52,532 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-10-27 02:56:52,532 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-10-27 02:56:52,537 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 02:56:51" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-10-27 02:56:52,595 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-10-27 02:56:52,595 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-10-27 02:56:52,596 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output4 [2018-10-27 02:56:52,596 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output4 [2018-10-27 02:56:52,596 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output3 [2018-10-27 02:56:52,596 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output3 [2018-10-27 02:56:52,596 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output2 [2018-10-27 02:56:52,596 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output2 [2018-10-27 02:56:52,597 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2018-10-27 02:56:52,597 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2018-10-27 02:56:52,597 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-10-27 02:56:52,597 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-10-27 02:56:52,597 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-10-27 02:56:52,598 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-10-27 02:57:03,138 INFO L341 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-10-27 02:57:03,139 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.10 02:57:03 BoogieIcfgContainer [2018-10-27 02:57:03,139 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-10-27 02:57:03,140 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-10-27 02:57:03,140 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-10-27 02:57:03,144 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-10-27 02:57:03,144 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 27.10 02:56:49" (1/3) ... [2018-10-27 02:57:03,145 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2e5791cb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.10 02:57:03, skipping insertion in model container [2018-10-27 02:57:03,145 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 02:56:51" (2/3) ... [2018-10-27 02:57:03,146 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2e5791cb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.10 02:57:03, skipping insertion in model container [2018-10-27 02:57:03,146 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.10 02:57:03" (3/3) ... [2018-10-27 02:57:03,148 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem13_label41_true-unreach-call.c [2018-10-27 02:57:03,160 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-10-27 02:57:03,170 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-10-27 02:57:03,189 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-10-27 02:57:03,252 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-10-27 02:57:03,253 INFO L383 AbstractCegarLoop]: Hoare is true [2018-10-27 02:57:03,253 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-10-27 02:57:03,253 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-10-27 02:57:03,253 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-10-27 02:57:03,253 INFO L387 AbstractCegarLoop]: Difference is false [2018-10-27 02:57:03,253 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-10-27 02:57:03,254 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-10-27 02:57:03,307 INFO L276 IsEmpty]: Start isEmpty. Operand 1120 states. [2018-10-27 02:57:03,315 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2018-10-27 02:57:03,316 INFO L367 BasicCegarLoop]: Found error trace [2018-10-27 02:57:03,316 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] [2018-10-27 02:57:03,319 INFO L424 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-27 02:57:03,324 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-27 02:57:03,325 INFO L82 PathProgramCache]: Analyzing trace with hash -501349661, now seen corresponding path program 1 times [2018-10-27 02:57:03,327 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-27 02:57:03,383 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 02:57:03,384 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-27 02:57:03,384 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 02:57:03,384 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-27 02:57:03,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-27 02:57:03,884 WARN L179 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 6 DAG size of output: 3 [2018-10-27 02:57:03,909 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-27 02:57:03,913 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-27 02:57:03,914 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-10-27 02:57:03,914 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-27 02:57:03,921 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-10-27 02:57:03,956 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-10-27 02:57:03,961 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-27 02:57:03,967 INFO L87 Difference]: Start difference. First operand 1120 states. Second operand 4 states. [2018-10-27 02:57:18,317 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-27 02:57:18,318 INFO L93 Difference]: Finished difference Result 4063 states and 7611 transitions. [2018-10-27 02:57:18,328 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-10-27 02:57:18,330 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 51 [2018-10-27 02:57:18,330 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-27 02:57:18,380 INFO L225 Difference]: With dead ends: 4063 [2018-10-27 02:57:18,380 INFO L226 Difference]: Without dead ends: 2937 [2018-10-27 02:57:18,394 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-27 02:57:18,420 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2937 states. [2018-10-27 02:57:18,561 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2937 to 1982. [2018-10-27 02:57:18,563 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1982 states. [2018-10-27 02:57:18,576 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1982 states to 1982 states and 3456 transitions. [2018-10-27 02:57:18,578 INFO L78 Accepts]: Start accepts. Automaton has 1982 states and 3456 transitions. Word has length 51 [2018-10-27 02:57:18,579 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-27 02:57:18,579 INFO L481 AbstractCegarLoop]: Abstraction has 1982 states and 3456 transitions. [2018-10-27 02:57:18,579 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-10-27 02:57:18,580 INFO L276 IsEmpty]: Start isEmpty. Operand 1982 states and 3456 transitions. [2018-10-27 02:57:18,592 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 123 [2018-10-27 02:57:18,594 INFO L367 BasicCegarLoop]: Found error trace [2018-10-27 02:57:18,595 INFO L375 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-27 02:57:18,595 INFO L424 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-27 02:57:18,595 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-27 02:57:18,596 INFO L82 PathProgramCache]: Analyzing trace with hash -1322678209, now seen corresponding path program 1 times [2018-10-27 02:57:18,597 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-27 02:57:18,598 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 02:57:18,598 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-27 02:57:18,599 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 02:57:18,599 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-27 02:57:18,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-27 02:57:19,000 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 44 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-27 02:57:19,000 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-27 02:57:19,000 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-10-27 02:57:19,000 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-27 02:57:19,003 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-10-27 02:57:19,003 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-10-27 02:57:19,003 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-10-27 02:57:19,004 INFO L87 Difference]: Start difference. First operand 1982 states and 3456 transitions. Second operand 6 states. [2018-10-27 02:57:36,077 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-27 02:57:36,077 INFO L93 Difference]: Finished difference Result 7277 states and 13063 transitions. [2018-10-27 02:57:36,078 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-10-27 02:57:36,078 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 122 [2018-10-27 02:57:36,079 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-27 02:57:36,116 INFO L225 Difference]: With dead ends: 7277 [2018-10-27 02:57:36,116 INFO L226 Difference]: Without dead ends: 5301 [2018-10-27 02:57:36,129 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2018-10-27 02:57:36,135 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5301 states. [2018-10-27 02:57:36,285 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5301 to 5252. [2018-10-27 02:57:36,285 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5252 states. [2018-10-27 02:57:36,311 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5252 states to 5252 states and 8253 transitions. [2018-10-27 02:57:36,312 INFO L78 Accepts]: Start accepts. Automaton has 5252 states and 8253 transitions. Word has length 122 [2018-10-27 02:57:36,313 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-27 02:57:36,313 INFO L481 AbstractCegarLoop]: Abstraction has 5252 states and 8253 transitions. [2018-10-27 02:57:36,313 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-10-27 02:57:36,313 INFO L276 IsEmpty]: Start isEmpty. Operand 5252 states and 8253 transitions. [2018-10-27 02:57:36,319 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 126 [2018-10-27 02:57:36,319 INFO L367 BasicCegarLoop]: Found error trace [2018-10-27 02:57:36,325 INFO L375 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-27 02:57:36,325 INFO L424 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-27 02:57:36,326 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-27 02:57:36,326 INFO L82 PathProgramCache]: Analyzing trace with hash 497570766, now seen corresponding path program 1 times [2018-10-27 02:57:36,326 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-27 02:57:36,327 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 02:57:36,327 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-27 02:57:36,327 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 02:57:36,327 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-27 02:57:36,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-27 02:57:36,649 WARN L179 SmtUtils]: Spent 151.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 4 [2018-10-27 02:57:36,753 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 44 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-27 02:57:36,754 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-27 02:57:36,754 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-10-27 02:57:36,754 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-27 02:57:36,755 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-10-27 02:57:36,755 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-10-27 02:57:36,755 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-10-27 02:57:36,756 INFO L87 Difference]: Start difference. First operand 5252 states and 8253 transitions. Second operand 6 states. [2018-10-27 02:57:49,646 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-27 02:57:49,647 INFO L93 Difference]: Finished difference Result 13914 states and 22498 transitions. [2018-10-27 02:57:49,647 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-10-27 02:57:49,648 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 125 [2018-10-27 02:57:49,648 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-27 02:57:49,690 INFO L225 Difference]: With dead ends: 13914 [2018-10-27 02:57:49,690 INFO L226 Difference]: Without dead ends: 8668 [2018-10-27 02:57:49,714 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2018-10-27 02:57:49,722 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8668 states. [2018-10-27 02:57:49,921 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8668 to 8605. [2018-10-27 02:57:49,922 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8605 states. [2018-10-27 02:57:49,942 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8605 states to 8605 states and 12803 transitions. [2018-10-27 02:57:49,942 INFO L78 Accepts]: Start accepts. Automaton has 8605 states and 12803 transitions. Word has length 125 [2018-10-27 02:57:49,943 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-27 02:57:49,943 INFO L481 AbstractCegarLoop]: Abstraction has 8605 states and 12803 transitions. [2018-10-27 02:57:49,943 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-10-27 02:57:49,943 INFO L276 IsEmpty]: Start isEmpty. Operand 8605 states and 12803 transitions. [2018-10-27 02:57:49,946 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2018-10-27 02:57:49,946 INFO L367 BasicCegarLoop]: Found error trace [2018-10-27 02:57:49,946 INFO L375 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-27 02:57:49,947 INFO L424 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-27 02:57:49,947 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-27 02:57:49,947 INFO L82 PathProgramCache]: Analyzing trace with hash 1108741538, now seen corresponding path program 1 times [2018-10-27 02:57:49,947 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-27 02:57:49,948 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 02:57:49,948 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-27 02:57:49,949 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 02:57:49,949 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-27 02:57:49,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-27 02:57:50,243 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 44 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-27 02:57:50,244 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-27 02:57:50,244 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-10-27 02:57:50,244 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-27 02:57:50,245 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-10-27 02:57:50,246 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-10-27 02:57:50,246 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-10-27 02:57:50,246 INFO L87 Difference]: Start difference. First operand 8605 states and 12803 transitions. Second operand 5 states. [2018-10-27 02:58:08,458 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-27 02:58:08,458 INFO L93 Difference]: Finished difference Result 25983 states and 40339 transitions. [2018-10-27 02:58:08,459 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-10-27 02:58:08,459 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 135 [2018-10-27 02:58:08,459 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-27 02:58:08,557 INFO L225 Difference]: With dead ends: 25983 [2018-10-27 02:58:08,557 INFO L226 Difference]: Without dead ends: 17384 [2018-10-27 02:58:08,588 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2018-10-27 02:58:08,605 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17384 states. [2018-10-27 02:58:09,017 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17384 to 17119. [2018-10-27 02:58:09,017 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17119 states. [2018-10-27 02:58:09,059 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17119 states to 17119 states and 24326 transitions. [2018-10-27 02:58:09,060 INFO L78 Accepts]: Start accepts. Automaton has 17119 states and 24326 transitions. Word has length 135 [2018-10-27 02:58:09,060 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-27 02:58:09,061 INFO L481 AbstractCegarLoop]: Abstraction has 17119 states and 24326 transitions. [2018-10-27 02:58:09,061 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-10-27 02:58:09,061 INFO L276 IsEmpty]: Start isEmpty. Operand 17119 states and 24326 transitions. [2018-10-27 02:58:09,065 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 153 [2018-10-27 02:58:09,066 INFO L367 BasicCegarLoop]: Found error trace [2018-10-27 02:58:09,066 INFO L375 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-27 02:58:09,066 INFO L424 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-27 02:58:09,067 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-27 02:58:09,070 INFO L82 PathProgramCache]: Analyzing trace with hash -645200432, now seen corresponding path program 1 times [2018-10-27 02:58:09,070 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-27 02:58:09,070 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 02:58:09,071 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-27 02:58:09,071 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 02:58:09,071 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-27 02:58:09,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-27 02:58:09,338 WARN L179 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 4 [2018-10-27 02:58:09,396 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 27 proven. 17 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-27 02:58:09,397 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-27 02:58:09,397 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-10-27 02:58:09,398 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 153 with the following transitions: [2018-10-27 02:58:09,400 INFO L202 CegarAbsIntRunner]: [0], [1], [2628], [2635], [2643], [2651], [2659], [2667], [2675], [2683], [2691], [2699], [2707], [2715], [2723], [2731], [2739], [2747], [2755], [2763], [2771], [2779], [2787], [2795], [2803], [2811], [2819], [2827], [2835], [2843], [2851], [2859], [2867], [2875], [2883], [2891], [2899], [2907], [2915], [2923], [2931], [2935], [2937], [2940], [2948], [2956], [2964], [2972], [2980], [2988], [2996], [3004], [3012], [3020], [3028], [3036], [3044], [3052], [3060], [3068], [3076], [3084], [3092], [3100], [3108], [3116], [3121], [3125], [3129], [3133], [3137], [3148], [3152], [3156], [3160], [3164], [3168], [3179], [3183], [3187], [3191], [3195], [3199], [3203], [3207], [3218], [3222], [3226], [3230], [3234], [3238], [3242], [3246], [3250], [3254], [3258], [3262], [3265], [4238], [4242], [4246], [4252], [4256], [4258], [4269], [4270], [4271], [4273], [4274] [2018-10-27 02:58:09,477 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-10-27 02:58:09,477 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-10-27 02:58:43,819 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-10-27 02:58:43,821 INFO L272 AbstractInterpreter]: Visited 108 different actions 720 times. Merged at 5 different actions 30 times. Widened at 1 different actions 2 times. Found 1 fixpoints after 1 different actions. Largest state had 26 variables. [2018-10-27 02:58:43,832 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-27 02:58:43,832 INFO L398 sIntCurrentIteration]: Generating AbsInt predicates [2018-10-27 02:58:46,370 INFO L227 lantSequenceWeakener]: Weakened 42 states. On average, predicates are now at 75.37% of their original sizes. [2018-10-27 02:58:46,371 INFO L413 sIntCurrentIteration]: Unifying AI predicates [2018-10-27 02:58:55,185 INFO L415 sIntCurrentIteration]: We unified 151 AI predicates to 151 [2018-10-27 02:58:55,186 INFO L424 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-10-27 02:58:55,187 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-10-27 02:58:55,187 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [14] imperfect sequences [7] total 19 [2018-10-27 02:58:55,187 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-27 02:58:55,188 INFO L460 AbstractCegarLoop]: Interpolant automaton has 14 states [2018-10-27 02:58:55,188 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2018-10-27 02:58:55,188 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=136, Unknown=0, NotChecked=0, Total=182 [2018-10-27 02:58:55,188 INFO L87 Difference]: Start difference. First operand 17119 states and 24326 transitions. Second operand 14 states. [2018-10-27 02:59:20,380 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. Received shutdown request... [2018-10-27 03:00:40,733 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2018-10-27 03:00:40,734 WARN L550 AbstractCegarLoop]: Verification canceled [2018-10-27 03:00:40,739 WARN L205 ceAbstractionStarter]: Timeout [2018-10-27 03:00:40,739 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 27.10 03:00:40 BoogieIcfgContainer [2018-10-27 03:00:40,739 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-10-27 03:00:40,740 INFO L168 Benchmark]: Toolchain (without parser) took 231571.44 ms. Allocated memory was 1.5 GB in the beginning and 4.2 GB in the end (delta: 2.7 GB). Free memory was 1.4 GB in the beginning and 1.4 GB in the end (delta: -27.1 MB). Peak memory consumption was 2.7 GB. Max. memory is 7.1 GB. [2018-10-27 03:00:40,742 INFO L168 Benchmark]: CDTParser took 0.22 ms. Allocated memory is still 1.5 GB. Free memory is still 1.4 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-10-27 03:00:40,742 INFO L168 Benchmark]: CACSL2BoogieTranslator took 2384.33 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.1 GB in the end (delta: 253.7 MB). Peak memory consumption was 253.7 MB. Max. memory is 7.1 GB. [2018-10-27 03:00:40,743 INFO L168 Benchmark]: Boogie Procedure Inliner took 619.60 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 818.4 MB). Free memory was 1.1 GB in the beginning and 2.2 GB in the end (delta: -1.1 GB). Peak memory consumption was 84.1 MB. Max. memory is 7.1 GB. [2018-10-27 03:00:40,744 INFO L168 Benchmark]: Boogie Preprocessor took 354.61 ms. Allocated memory is still 2.3 GB. Free memory was 2.2 GB in the beginning and 2.2 GB in the end (delta: 37.8 MB). Peak memory consumption was 37.8 MB. Max. memory is 7.1 GB. [2018-10-27 03:00:40,745 INFO L168 Benchmark]: RCFGBuilder took 10607.76 ms. Allocated memory was 2.3 GB in the beginning and 2.5 GB in the end (delta: 190.8 MB). Free memory was 2.2 GB in the beginning and 2.2 GB in the end (delta: 17.3 MB). Peak memory consumption was 673.7 MB. Max. memory is 7.1 GB. [2018-10-27 03:00:40,746 INFO L168 Benchmark]: TraceAbstraction took 217599.21 ms. Allocated memory was 2.5 GB in the beginning and 4.2 GB in the end (delta: 1.7 GB). Free memory was 2.2 GB in the beginning and 1.4 GB in the end (delta: 755.4 MB). Peak memory consumption was 2.5 GB. Max. memory is 7.1 GB. [2018-10-27 03:00:40,752 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22 ms. Allocated memory is still 1.5 GB. Free memory is still 1.4 GB. There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 2384.33 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.1 GB in the end (delta: 253.7 MB). Peak memory consumption was 253.7 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 619.60 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 818.4 MB). Free memory was 1.1 GB in the beginning and 2.2 GB in the end (delta: -1.1 GB). Peak memory consumption was 84.1 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 354.61 ms. Allocated memory is still 2.3 GB. Free memory was 2.2 GB in the beginning and 2.2 GB in the end (delta: 37.8 MB). Peak memory consumption was 37.8 MB. Max. memory is 7.1 GB. * RCFGBuilder took 10607.76 ms. Allocated memory was 2.3 GB in the beginning and 2.5 GB in the end (delta: 190.8 MB). Free memory was 2.2 GB in the beginning and 2.2 GB in the end (delta: 17.3 MB). Peak memory consumption was 673.7 MB. Max. memory is 7.1 GB. * TraceAbstraction took 217599.21 ms. Allocated memory was 2.5 GB in the beginning and 4.2 GB in the end (delta: 1.7 GB). Free memory was 2.2 GB in the beginning and 1.4 GB in the end (delta: 755.4 MB). Peak memory consumption was 2.5 GB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResultAtElement [Line: 144]: Timeout (TraceAbstraction) Unable to prove that call of __VERIFIER_error() unreachable (line 144). Cancelled while BasicCegarLoop was constructing difference of abstraction (17119states) and FLOYD_HOARE automaton (currently 15 states, 14 states before enhancement),while ReachableStatesComputation was computing reachable states (1804 states constructedinput type IntersectNwa). - StatisticsResult: Ultimate Automizer benchmark data CFG has 7 procedures, 1120 locations, 1 error locations. TIMEOUT Result, 217.5s OverallTime, 5 OverallIterations, 2 TraceHistogramMax, 168.4s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 2004 SDtfs, 15121 SDslu, 2282 SDs, 0 SdLazy, 24198 SolverSat, 7711 SolverUnsat, 1 SolverUnknown, 0 SolverNotchecked, 104.8s Time, PredicateUnifierStatistics: 2 DeclaredPredicates, 191 GetRequests, 143 SyntacticMatches, 9 SemanticMatches, 39 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 81 ImplicationChecksByTransitivity, 10.8s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=17119occurred in iteration=4, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 34.4s AbstIntTime, 1 AbstIntIterations, 1 AbstIntStrong, 0.9941008660213957 AbsIntWeakeningRatio, 0.1390728476821192 AbsIntAvgWeakeningVarsNumRemoved, 76.23841059602648 AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 1.0s AutomataMinimizationTime, 4 MinimizatonAttempts, 1332 StatesRemovedByMinimization, 4 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 1.5s InterpolantComputationTime, 585 NumberOfCodeBlocks, 585 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 580 ConstructedInterpolants, 0 QuantifiedInterpolants, 331108 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 5 InterpolantComputations, 4 PerfectInterpolantSequences, 159/176 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Completed graceful shutdown