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/Problem17_label09_false-unreach-call.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-0fd1304 [2018-10-23 22:45:40,185 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-10-23 22:45:40,187 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-10-23 22:45:40,204 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-10-23 22:45:40,204 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-10-23 22:45:40,205 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-10-23 22:45:40,206 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-10-23 22:45:40,208 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-10-23 22:45:40,210 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-10-23 22:45:40,211 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-10-23 22:45:40,212 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-10-23 22:45:40,212 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-10-23 22:45:40,213 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-10-23 22:45:40,214 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-10-23 22:45:40,215 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-10-23 22:45:40,216 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-10-23 22:45:40,217 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-10-23 22:45:40,218 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-10-23 22:45:40,220 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-10-23 22:45:40,222 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-10-23 22:45:40,223 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-10-23 22:45:40,224 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-10-23 22:45:40,227 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-10-23 22:45:40,227 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-10-23 22:45:40,227 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-10-23 22:45:40,228 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-10-23 22:45:40,229 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-10-23 22:45:40,230 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-10-23 22:45:40,231 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-10-23 22:45:40,232 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-10-23 22:45:40,232 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-10-23 22:45:40,233 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-10-23 22:45:40,233 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-10-23 22:45:40,233 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-10-23 22:45:40,234 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-10-23 22:45:40,235 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-10-23 22:45:40,235 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 [2018-10-23 22:45:40,265 INFO L110 SettingsManager]: Loading preferences was successful [2018-10-23 22:45:40,265 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-10-23 22:45:40,266 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-10-23 22:45:40,266 INFO L133 SettingsManager]: * User list type=DISABLED [2018-10-23 22:45:40,266 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-10-23 22:45:40,267 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-10-23 22:45:40,267 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-10-23 22:45:40,267 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-10-23 22:45:40,267 INFO L133 SettingsManager]: * Log string format=TERM [2018-10-23 22:45:40,267 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-10-23 22:45:40,268 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-10-23 22:45:40,269 INFO L133 SettingsManager]: * Interval Domain=false [2018-10-23 22:45:40,270 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-10-23 22:45:40,270 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-10-23 22:45:40,270 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-10-23 22:45:40,270 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-10-23 22:45:40,271 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-10-23 22:45:40,272 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-10-23 22:45:40,272 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-10-23 22:45:40,272 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-10-23 22:45:40,272 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-10-23 22:45:40,273 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-10-23 22:45:40,273 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-10-23 22:45:40,273 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-10-23 22:45:40,273 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-10-23 22:45:40,273 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-10-23 22:45:40,274 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-10-23 22:45:40,274 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-10-23 22:45:40,274 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-10-23 22:45:40,274 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-10-23 22:45:40,274 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-10-23 22:45:40,275 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-10-23 22:45:40,275 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-10-23 22:45:40,275 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-10-23 22:45:40,323 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-10-23 22:45:40,337 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-10-23 22:45:40,342 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-10-23 22:45:40,343 INFO L271 PluginConnector]: Initializing CDTParser... [2018-10-23 22:45:40,344 INFO L276 PluginConnector]: CDTParser initialized [2018-10-23 22:45:40,345 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem17_label09_false-unreach-call.c [2018-10-23 22:45:40,414 INFO L218 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/12560cb73/6a23edf2a7d44660bb2c0a637a9d70bd/FLAGa679e2756 [2018-10-23 22:45:41,211 INFO L298 CDTParser]: Found 1 translation units. [2018-10-23 22:45:41,212 INFO L158 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem17_label09_false-unreach-call.c [2018-10-23 22:45:41,246 INFO L346 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/12560cb73/6a23edf2a7d44660bb2c0a637a9d70bd/FLAGa679e2756 [2018-10-23 22:45:41,267 INFO L354 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/12560cb73/6a23edf2a7d44660bb2c0a637a9d70bd [2018-10-23 22:45:41,279 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-10-23 22:45:41,282 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-10-23 22:45:41,283 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-10-23 22:45:41,283 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-10-23 22:45:41,290 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-10-23 22:45:41,291 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.10 10:45:41" (1/1) ... [2018-10-23 22:45:41,294 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1816ef0f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 10:45:41, skipping insertion in model container [2018-10-23 22:45:41,295 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.10 10:45:41" (1/1) ... [2018-10-23 22:45:41,306 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-10-23 22:45:41,443 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-10-23 22:45:42,526 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-23 22:45:42,531 INFO L189 MainTranslator]: Completed pre-run [2018-10-23 22:45:42,930 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-23 22:45:42,954 INFO L193 MainTranslator]: Completed translation [2018-10-23 22:45:42,955 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 10:45:42 WrapperNode [2018-10-23 22:45:42,955 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-10-23 22:45:42,957 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-10-23 22:45:42,957 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-10-23 22:45:42,958 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-10-23 22:45:42,968 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 10:45:42" (1/1) ... [2018-10-23 22:45:43,042 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 10:45:42" (1/1) ... [2018-10-23 22:45:43,429 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-10-23 22:45:43,430 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-10-23 22:45:43,430 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-10-23 22:45:43,430 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-10-23 22:45:43,441 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 10:45:42" (1/1) ... [2018-10-23 22:45:43,441 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 10:45:42" (1/1) ... [2018-10-23 22:45:43,485 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 10:45:42" (1/1) ... [2018-10-23 22:45:43,485 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 10:45:42" (1/1) ... [2018-10-23 22:45:43,587 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 10:45:42" (1/1) ... [2018-10-23 22:45:43,617 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 10:45:42" (1/1) ... [2018-10-23 22:45:43,668 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 10:45:42" (1/1) ... [2018-10-23 22:45:43,740 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-10-23 22:45:43,741 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-10-23 22:45:43,741 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-10-23 22:45:43,742 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-10-23 22:45:43,743 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 10:45:42" (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 [2018-10-23 22:45:43,822 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-10-23 22:45:43,823 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-10-23 22:45:43,823 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output2 [2018-10-23 22:45:43,823 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output2 [2018-10-23 22:45:43,823 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2018-10-23 22:45:43,824 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2018-10-23 22:45:43,824 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-10-23 22:45:43,824 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-10-23 22:45:43,824 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-10-23 22:45:43,824 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-10-23 22:45:55,109 INFO L341 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-10-23 22:45:55,110 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.10 10:45:55 BoogieIcfgContainer [2018-10-23 22:45:55,110 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-10-23 22:45:55,113 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-10-23 22:45:55,113 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-10-23 22:45:55,116 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-10-23 22:45:55,117 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.10 10:45:41" (1/3) ... [2018-10-23 22:45:55,117 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@12c82676 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.10 10:45:55, skipping insertion in model container [2018-10-23 22:45:55,118 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 10:45:42" (2/3) ... [2018-10-23 22:45:55,118 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@12c82676 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.10 10:45:55, skipping insertion in model container [2018-10-23 22:45:55,118 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.10 10:45:55" (3/3) ... [2018-10-23 22:45:55,120 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem17_label09_false-unreach-call.c [2018-10-23 22:45:55,131 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-10-23 22:45:55,140 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-10-23 22:45:55,157 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-10-23 22:45:55,201 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-10-23 22:45:55,201 INFO L383 AbstractCegarLoop]: Hoare is true [2018-10-23 22:45:55,201 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-10-23 22:45:55,201 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-10-23 22:45:55,202 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-10-23 22:45:55,202 INFO L387 AbstractCegarLoop]: Difference is false [2018-10-23 22:45:55,202 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-10-23 22:45:55,202 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-10-23 22:45:55,252 INFO L276 IsEmpty]: Start isEmpty. Operand 604 states. [2018-10-23 22:45:55,262 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2018-10-23 22:45:55,263 INFO L367 BasicCegarLoop]: Found error trace [2018-10-23 22:45:55,264 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-23 22:45:55,266 INFO L424 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-23 22:45:55,272 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-23 22:45:55,272 INFO L82 PathProgramCache]: Analyzing trace with hash 643267750, now seen corresponding path program 1 times [2018-10-23 22:45:55,275 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-23 22:45:55,323 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-23 22:45:55,323 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-23 22:45:55,324 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-23 22:45:55,324 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-23 22:45:55,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-23 22:45:55,613 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-23 22:45:55,617 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-23 22:45:55,618 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-10-23 22:45:55,618 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-23 22:45:55,623 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-10-23 22:45:55,637 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-10-23 22:45:55,638 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-23 22:45:55,640 INFO L87 Difference]: Start difference. First operand 604 states. Second operand 4 states. [2018-10-23 22:46:05,883 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-23 22:46:05,884 INFO L93 Difference]: Finished difference Result 2166 states and 4013 transitions. [2018-10-23 22:46:05,887 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-10-23 22:46:05,888 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 19 [2018-10-23 22:46:05,889 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-23 22:46:05,932 INFO L225 Difference]: With dead ends: 2166 [2018-10-23 22:46:05,933 INFO L226 Difference]: Without dead ends: 1556 [2018-10-23 22:46:05,945 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-23 22:46:05,966 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1556 states. [2018-10-23 22:46:06,079 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1556 to 1068. [2018-10-23 22:46:06,080 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1068 states. [2018-10-23 22:46:06,088 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1068 states to 1068 states and 1850 transitions. [2018-10-23 22:46:06,090 INFO L78 Accepts]: Start accepts. Automaton has 1068 states and 1850 transitions. Word has length 19 [2018-10-23 22:46:06,091 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-23 22:46:06,091 INFO L481 AbstractCegarLoop]: Abstraction has 1068 states and 1850 transitions. [2018-10-23 22:46:06,091 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-10-23 22:46:06,091 INFO L276 IsEmpty]: Start isEmpty. Operand 1068 states and 1850 transitions. [2018-10-23 22:46:06,096 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2018-10-23 22:46:06,097 INFO L367 BasicCegarLoop]: Found error trace [2018-10-23 22:46:06,097 INFO L375 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-23 22:46:06,097 INFO L424 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-23 22:46:06,098 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-23 22:46:06,098 INFO L82 PathProgramCache]: Analyzing trace with hash -969437153, now seen corresponding path program 1 times [2018-10-23 22:46:06,098 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-23 22:46:06,099 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-23 22:46:06,099 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-23 22:46:06,100 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-23 22:46:06,100 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-23 22:46:06,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-23 22:46:06,570 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-23 22:46:06,571 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-23 22:46:06,571 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-10-23 22:46:06,571 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-23 22:46:06,573 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-10-23 22:46:06,573 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-10-23 22:46:06,574 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-10-23 22:46:06,574 INFO L87 Difference]: Start difference. First operand 1068 states and 1850 transitions. Second operand 6 states. [2018-10-23 22:46:16,587 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-23 22:46:16,587 INFO L93 Difference]: Finished difference Result 3059 states and 5419 transitions. [2018-10-23 22:46:16,594 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-10-23 22:46:16,594 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 95 [2018-10-23 22:46:16,595 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-23 22:46:16,612 INFO L225 Difference]: With dead ends: 3059 [2018-10-23 22:46:16,612 INFO L226 Difference]: Without dead ends: 1997 [2018-10-23 22:46:16,617 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 [2018-10-23 22:46:16,619 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1997 states. [2018-10-23 22:46:16,697 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1997 to 1975. [2018-10-23 22:46:16,697 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1975 states. [2018-10-23 22:46:16,706 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1975 states to 1975 states and 3181 transitions. [2018-10-23 22:46:16,706 INFO L78 Accepts]: Start accepts. Automaton has 1975 states and 3181 transitions. Word has length 95 [2018-10-23 22:46:16,707 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-23 22:46:16,707 INFO L481 AbstractCegarLoop]: Abstraction has 1975 states and 3181 transitions. [2018-10-23 22:46:16,707 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-10-23 22:46:16,707 INFO L276 IsEmpty]: Start isEmpty. Operand 1975 states and 3181 transitions. [2018-10-23 22:46:16,713 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2018-10-23 22:46:16,713 INFO L367 BasicCegarLoop]: Found error trace [2018-10-23 22:46:16,714 INFO L375 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-23 22:46:16,714 INFO L424 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-23 22:46:16,714 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-23 22:46:16,715 INFO L82 PathProgramCache]: Analyzing trace with hash 595162535, now seen corresponding path program 1 times [2018-10-23 22:46:16,715 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-23 22:46:16,716 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-23 22:46:16,716 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-23 22:46:16,716 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-23 22:46:16,716 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-23 22:46:16,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-23 22:46:17,009 WARN L179 SmtUtils]: Spent 129.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 4 [2018-10-23 22:46:17,043 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-23 22:46:17,044 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-23 22:46:17,044 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-10-23 22:46:17,044 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-23 22:46:17,045 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-10-23 22:46:17,045 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-10-23 22:46:17,045 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-10-23 22:46:17,046 INFO L87 Difference]: Start difference. First operand 1975 states and 3181 transitions. Second operand 6 states. [2018-10-23 22:46:27,815 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-23 22:46:27,815 INFO L93 Difference]: Finished difference Result 5319 states and 8624 transitions. [2018-10-23 22:46:27,817 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-10-23 22:46:27,817 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 99 [2018-10-23 22:46:27,818 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-23 22:46:27,844 INFO L225 Difference]: With dead ends: 5319 [2018-10-23 22:46:27,844 INFO L226 Difference]: Without dead ends: 3350 [2018-10-23 22:46:27,855 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 [2018-10-23 22:46:27,858 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3350 states. [2018-10-23 22:46:27,960 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3350 to 3319. [2018-10-23 22:46:27,960 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3319 states. [2018-10-23 22:46:27,975 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3319 states to 3319 states and 4717 transitions. [2018-10-23 22:46:27,975 INFO L78 Accepts]: Start accepts. Automaton has 3319 states and 4717 transitions. Word has length 99 [2018-10-23 22:46:27,976 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-23 22:46:27,976 INFO L481 AbstractCegarLoop]: Abstraction has 3319 states and 4717 transitions. [2018-10-23 22:46:27,976 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-10-23 22:46:27,976 INFO L276 IsEmpty]: Start isEmpty. Operand 3319 states and 4717 transitions. [2018-10-23 22:46:27,979 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2018-10-23 22:46:27,980 INFO L367 BasicCegarLoop]: Found error trace [2018-10-23 22:46:27,980 INFO L375 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-23 22:46:27,980 INFO L424 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-23 22:46:27,981 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-23 22:46:27,981 INFO L82 PathProgramCache]: Analyzing trace with hash -1684716310, now seen corresponding path program 1 times [2018-10-23 22:46:27,981 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-23 22:46:27,982 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-23 22:46:27,982 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-23 22:46:27,983 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-23 22:46:27,983 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-23 22:46:28,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-23 22:46:28,168 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-23 22:46:28,169 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-23 22:46:28,169 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-10-23 22:46:28,169 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-23 22:46:28,170 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-10-23 22:46:28,170 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-10-23 22:46:28,171 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-23 22:46:28,171 INFO L87 Difference]: Start difference. First operand 3319 states and 4717 transitions. Second operand 4 states. [2018-10-23 22:46:33,236 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-23 22:46:33,236 INFO L93 Difference]: Finished difference Result 7071 states and 10074 transitions. [2018-10-23 22:46:33,243 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-10-23 22:46:33,244 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 129 [2018-10-23 22:46:33,244 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-23 22:46:33,265 INFO L225 Difference]: With dead ends: 7071 [2018-10-23 22:46:33,265 INFO L226 Difference]: Without dead ends: 3758 [2018-10-23 22:46:33,278 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-23 22:46:33,282 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3758 states. [2018-10-23 22:46:33,372 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3758 to 3758. [2018-10-23 22:46:33,373 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3758 states. [2018-10-23 22:46:33,382 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3758 states to 3758 states and 4955 transitions. [2018-10-23 22:46:33,382 INFO L78 Accepts]: Start accepts. Automaton has 3758 states and 4955 transitions. Word has length 129 [2018-10-23 22:46:33,383 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-23 22:46:33,383 INFO L481 AbstractCegarLoop]: Abstraction has 3758 states and 4955 transitions. [2018-10-23 22:46:33,383 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-10-23 22:46:33,383 INFO L276 IsEmpty]: Start isEmpty. Operand 3758 states and 4955 transitions. [2018-10-23 22:46:33,387 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 184 [2018-10-23 22:46:33,389 INFO L367 BasicCegarLoop]: Found error trace [2018-10-23 22:46:33,389 INFO L375 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2018-10-23 22:46:33,389 INFO L424 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-23 22:46:33,389 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-23 22:46:33,390 INFO L82 PathProgramCache]: Analyzing trace with hash -946229712, now seen corresponding path program 1 times [2018-10-23 22:46:33,390 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-23 22:46:33,391 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-23 22:46:33,391 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-23 22:46:33,391 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-23 22:46:33,391 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-23 22:46:33,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-23 22:46:33,609 INFO L134 CoverageAnalysis]: Checked inductivity of 100 backedges. 27 proven. 0 refuted. 0 times theorem prover too weak. 73 trivial. 0 not checked. [2018-10-23 22:46:33,609 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-23 22:46:33,609 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-10-23 22:46:33,609 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-23 22:46:33,610 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-10-23 22:46:33,610 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-10-23 22:46:33,611 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-10-23 22:46:33,611 INFO L87 Difference]: Start difference. First operand 3758 states and 4955 transitions. Second operand 3 states. [2018-10-23 22:46:39,540 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-23 22:46:39,541 INFO L93 Difference]: Finished difference Result 10155 states and 13555 transitions. [2018-10-23 22:46:39,541 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-10-23 22:46:39,541 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 183 [2018-10-23 22:46:39,542 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-23 22:46:39,565 INFO L225 Difference]: With dead ends: 10155 [2018-10-23 22:46:39,565 INFO L226 Difference]: Without dead ends: 6403 [2018-10-23 22:46:39,576 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-10-23 22:46:39,581 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6403 states. [2018-10-23 22:46:39,694 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6403 to 6403. [2018-10-23 22:46:39,695 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6403 states. [2018-10-23 22:46:39,708 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6403 states to 6403 states and 7808 transitions. [2018-10-23 22:46:39,708 INFO L78 Accepts]: Start accepts. Automaton has 6403 states and 7808 transitions. Word has length 183 [2018-10-23 22:46:39,709 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-23 22:46:39,709 INFO L481 AbstractCegarLoop]: Abstraction has 6403 states and 7808 transitions. [2018-10-23 22:46:39,709 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-10-23 22:46:39,709 INFO L276 IsEmpty]: Start isEmpty. Operand 6403 states and 7808 transitions. [2018-10-23 22:46:39,713 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 207 [2018-10-23 22:46:39,713 INFO L367 BasicCegarLoop]: Found error trace [2018-10-23 22:46:39,713 INFO L375 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2018-10-23 22:46:39,713 INFO L424 AbstractCegarLoop]: === Iteration 6 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-23 22:46:39,714 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-23 22:46:39,714 INFO L82 PathProgramCache]: Analyzing trace with hash -2123800399, now seen corresponding path program 1 times [2018-10-23 22:46:39,714 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-23 22:46:39,715 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-23 22:46:39,715 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-23 22:46:39,715 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-23 22:46:39,715 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-23 22:46:39,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-23 22:46:40,387 WARN L179 SmtUtils]: Spent 195.00 ms on a formula simplification that was a NOOP. DAG size: 16 [2018-10-23 22:46:40,647 INFO L134 CoverageAnalysis]: Checked inductivity of 101 backedges. 24 proven. 72 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2018-10-23 22:46:40,647 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-23 22:46:40,648 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-10-23 22:46:40,648 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 207 with the following transitions: [2018-10-23 22:46:40,650 INFO L202 CegarAbsIntRunner]: [0], [1], [711], [718], [726], [734], [742], [750], [758], [762], [764], [767], [775], [783], [791], [799], [807], [815], [823], [831], [839], [847], [855], [863], [871], [879], [887], [895], [903], [911], [919], [927], [935], [943], [951], [959], [967], [975], [983], [991], [999], [1007], [1015], [1023], [1031], [1039], [1047], [1055], [1063], [1071], [1079], [1087], [1095], [1103], [1111], [1119], [1127], [1135], [1143], [1151], [1159], [1167], [1175], [1183], [1191], [1199], [1204], [1208], [1212], [1216], [1220], [1224], [1228], [1231], [1232], [1236], [1240], [1244], [1255], [1259], [1263], [1267], [1271], [1275], [1279], [1283], [1287], [1291], [1295], [1299], [1303], [1307], [1318], [1322], [1326], [1330], [1334], [1345], [1349], [1353], [1357], [1361], [1365], [1369], [1373], [1377], [1381], [1384], [2279], [2283], [2287], [2293], [2297], [2299], [2306], [2307], [2308], [2310], [2311] [2018-10-23 22:46:40,724 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-10-23 22:46:40,724 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-10-23 22:46:43,251 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-10-23 22:46:43,646 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-10-23 22:46:43,648 INFO L272 AbstractInterpreter]: Visited 115 different actions 115 times. Never merged. Never widened. Never found a fixpoint. Largest state had 26 variables. [2018-10-23 22:46:43,692 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-23 22:46:43,692 INFO L398 sIntCurrentIteration]: Generating AbsInt predicates [2018-10-23 22:46:46,239 INFO L232 lantSequenceWeakener]: Weakened 198 states. On average, predicates are now at 75.06% of their original sizes. [2018-10-23 22:46:46,240 INFO L411 sIntCurrentIteration]: Unifying AI predicates [2018-10-23 22:46:46,882 INFO L422 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-10-23 22:46:46,883 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-10-23 22:46:46,884 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [8] imperfect sequences [6] total 12 [2018-10-23 22:46:46,884 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-23 22:46:46,884 INFO L460 AbstractCegarLoop]: Interpolant automaton has 8 states [2018-10-23 22:46:46,884 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2018-10-23 22:46:46,885 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2018-10-23 22:46:46,885 INFO L87 Difference]: Start difference. First operand 6403 states and 7808 transitions. Second operand 8 states. [2018-10-23 22:49:14,438 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-23 22:49:14,439 INFO L93 Difference]: Finished difference Result 13236 states and 16076 transitions. [2018-10-23 22:49:14,439 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-10-23 22:49:14,439 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 206 [2018-10-23 22:49:14,439 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-23 22:49:14,466 INFO L225 Difference]: With dead ends: 13236 [2018-10-23 22:49:14,466 INFO L226 Difference]: Without dead ends: 6839 [2018-10-23 22:49:14,482 INFO L605 BasicCegarLoop]: 2 DeclaredPredicates, 207 GetRequests, 199 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=32, Invalid=58, Unknown=0, NotChecked=0, Total=90 [2018-10-23 22:49:14,488 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6839 states. [2018-10-23 22:49:14,620 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6839 to 6837. [2018-10-23 22:49:14,621 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6837 states. [2018-10-23 22:49:14,635 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6837 states to 6837 states and 8253 transitions. [2018-10-23 22:49:14,635 INFO L78 Accepts]: Start accepts. Automaton has 6837 states and 8253 transitions. Word has length 206 [2018-10-23 22:49:14,636 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-23 22:49:14,636 INFO L481 AbstractCegarLoop]: Abstraction has 6837 states and 8253 transitions. [2018-10-23 22:49:14,636 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2018-10-23 22:49:14,636 INFO L276 IsEmpty]: Start isEmpty. Operand 6837 states and 8253 transitions. [2018-10-23 22:49:14,641 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 250 [2018-10-23 22:49:14,641 INFO L367 BasicCegarLoop]: Found error trace [2018-10-23 22:49:14,642 INFO L375 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2018-10-23 22:49:14,642 INFO L424 AbstractCegarLoop]: === Iteration 7 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-23 22:49:14,642 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-23 22:49:14,643 INFO L82 PathProgramCache]: Analyzing trace with hash -547637847, now seen corresponding path program 1 times [2018-10-23 22:49:14,643 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-23 22:49:14,644 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-23 22:49:14,644 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-23 22:49:14,644 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-23 22:49:14,644 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-23 22:49:14,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-23 22:49:15,011 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 27 proven. 0 refuted. 0 times theorem prover too weak. 85 trivial. 0 not checked. [2018-10-23 22:49:15,012 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-23 22:49:15,012 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-10-23 22:49:15,012 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-23 22:49:15,013 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-10-23 22:49:15,013 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-10-23 22:49:15,013 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-23 22:49:15,014 INFO L87 Difference]: Start difference. First operand 6837 states and 8253 transitions. Second operand 4 states. [2018-10-23 22:49:26,284 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-23 22:49:26,284 INFO L93 Difference]: Finished difference Result 16806 states and 20768 transitions. [2018-10-23 22:49:26,284 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-10-23 22:49:26,284 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 249 [2018-10-23 22:49:26,285 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-23 22:49:26,328 INFO L225 Difference]: With dead ends: 16806 [2018-10-23 22:49:26,328 INFO L226 Difference]: Without dead ends: 10409 [2018-10-23 22:49:26,355 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-23 22:49:26,363 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10409 states. [2018-10-23 22:49:26,536 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10409 to 10392. [2018-10-23 22:49:26,537 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10392 states. [2018-10-23 22:49:26,559 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10392 states to 10392 states and 12412 transitions. [2018-10-23 22:49:26,560 INFO L78 Accepts]: Start accepts. Automaton has 10392 states and 12412 transitions. Word has length 249 [2018-10-23 22:49:26,560 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-23 22:49:26,560 INFO L481 AbstractCegarLoop]: Abstraction has 10392 states and 12412 transitions. [2018-10-23 22:49:26,561 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-10-23 22:49:26,561 INFO L276 IsEmpty]: Start isEmpty. Operand 10392 states and 12412 transitions. [2018-10-23 22:49:26,567 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 259 [2018-10-23 22:49:26,567 INFO L367 BasicCegarLoop]: Found error trace [2018-10-23 22:49:26,567 INFO L375 BasicCegarLoop]: trace histogram [4, 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, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-23 22:49:26,568 INFO L424 AbstractCegarLoop]: === Iteration 8 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-23 22:49:26,568 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-23 22:49:26,568 INFO L82 PathProgramCache]: Analyzing trace with hash -273860377, now seen corresponding path program 1 times [2018-10-23 22:49:26,568 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-23 22:49:26,569 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-23 22:49:26,569 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-23 22:49:26,569 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-23 22:49:26,570 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-23 22:49:26,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-23 22:49:26,968 INFO L134 CoverageAnalysis]: Checked inductivity of 262 backedges. 46 proven. 142 refuted. 0 times theorem prover too weak. 74 trivial. 0 not checked. [2018-10-23 22:49:26,968 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-23 22:49:26,969 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-10-23 22:49:26,969 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 259 with the following transitions: [2018-10-23 22:49:26,969 INFO L202 CegarAbsIntRunner]: [0], [1], [711], [718], [726], [734], [742], [750], [758], [762], [764], [767], [775], [783], [791], [799], [807], [815], [823], [831], [839], [847], [855], [863], [871], [879], [887], [895], [903], [911], [919], [927], [935], [943], [951], [959], [967], [975], [983], [991], [999], [1007], [1015], [1023], [1031], [1039], [1047], [1055], [1063], [1071], [1079], [1087], [1095], [1103], [1111], [1119], [1127], [1135], [1143], [1151], [1159], [1167], [1175], [1183], [1191], [1199], [1204], [1208], [1212], [1216], [1220], [1223], [1224], [1227], [1228], [1232], [1236], [1240], [1244], [1255], [1259], [1263], [1267], [1271], [1275], [1279], [1282], [2279], [2283], [2287], [2293], [2297], [2299], [2306], [2307], [2308], [2310], [2311] [2018-10-23 22:49:26,975 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-10-23 22:49:26,976 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-10-23 22:49:27,574 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. Received shutdown request... [2018-10-23 22:49:32,811 WARN L572 FixpointEngine]: Received timeout, aborting fixpoint engine [2018-10-23 22:49:32,812 WARN L158 AbstractInterpreter]: Abstract interpretation run out of time [2018-10-23 22:49:32,813 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: AbsInt can only provide a hoare triple checker if it generated fixpoints [2018-10-23 22:49:32,814 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-23 22:49:32,814 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UTaipan-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 [2018-10-23 22:49:32,827 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-23 22:49:32,827 INFO L288 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-10-23 22:49:32,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-23 22:49:32,947 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-10-23 22:49:32,968 INFO L177 TraceCheckSpWp]: Timeout while computing interpolants [2018-10-23 22:49:33,169 WARN L522 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-10-23 22:49:33,170 WARN L550 AbstractCegarLoop]: Verification canceled [2018-10-23 22:49:33,175 WARN L205 ceAbstractionStarter]: Timeout [2018-10-23 22:49:33,175 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.10 10:49:33 BoogieIcfgContainer [2018-10-23 22:49:33,175 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-10-23 22:49:33,176 INFO L168 Benchmark]: Toolchain (without parser) took 231896.11 ms. Allocated memory was 1.5 GB in the beginning and 4.2 GB in the end (delta: 2.6 GB). Free memory was 1.4 GB in the beginning and 1.7 GB in the end (delta: -320.8 MB). Peak memory consumption was 2.3 GB. Max. memory is 7.1 GB. [2018-10-23 22:49:33,177 INFO L168 Benchmark]: CDTParser took 0.24 ms. Allocated memory is still 1.5 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-10-23 22:49:33,178 INFO L168 Benchmark]: CACSL2BoogieTranslator took 1673.69 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.3 GB in the end (delta: 137.4 MB). Peak memory consumption was 137.4 MB. Max. memory is 7.1 GB. [2018-10-23 22:49:33,179 INFO L168 Benchmark]: Boogie Procedure Inliner took 472.64 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 773.3 MB). Free memory was 1.3 GB in the beginning and 2.2 GB in the end (delta: -925.3 MB). Peak memory consumption was 56.4 MB. Max. memory is 7.1 GB. [2018-10-23 22:49:33,180 INFO L168 Benchmark]: Boogie Preprocessor took 310.69 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: 27.2 MB). Peak memory consumption was 27.2 MB. Max. memory is 7.1 GB. [2018-10-23 22:49:33,180 INFO L168 Benchmark]: RCFGBuilder took 11370.78 ms. Allocated memory is still 2.3 GB. Free memory was 2.2 GB in the beginning and 1.7 GB in the end (delta: 479.1 MB). Peak memory consumption was 479.1 MB. Max. memory is 7.1 GB. [2018-10-23 22:49:33,181 INFO L168 Benchmark]: TraceAbstraction took 218062.44 ms. Allocated memory was 2.3 GB in the beginning and 4.2 GB in the end (delta: 1.8 GB). Free memory was 1.7 GB in the beginning and 1.7 GB in the end (delta: -39.2 MB). Peak memory consumption was 1.8 GB. Max. memory is 7.1 GB. [2018-10-23 22:49:33,191 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.24 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 1673.69 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.3 GB in the end (delta: 137.4 MB). Peak memory consumption was 137.4 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 472.64 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 773.3 MB). Free memory was 1.3 GB in the beginning and 2.2 GB in the end (delta: -925.3 MB). Peak memory consumption was 56.4 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 310.69 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: 27.2 MB). Peak memory consumption was 27.2 MB. Max. memory is 7.1 GB. * RCFGBuilder took 11370.78 ms. Allocated memory is still 2.3 GB. Free memory was 2.2 GB in the beginning and 1.7 GB in the end (delta: 479.1 MB). Peak memory consumption was 479.1 MB. Max. memory is 7.1 GB. * TraceAbstraction took 218062.44 ms. Allocated memory was 2.3 GB in the beginning and 4.2 GB in the end (delta: 1.8 GB). Free memory was 1.7 GB in the beginning and 1.7 GB in the end (delta: -39.2 MB). Peak memory consumption was 1.8 GB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResultAtElement [Line: 44]: Timeout (TraceAbstraction) Unable to prove that call of __VERIFIER_error() unreachable (line 44). Cancelled while BasicCegarLoop was analyzing trace of length 259 with TraceHistMax 4,while TraceCheckSpWp was constructing forward predicates,while XnfDer was eliminating 1 quantified variables from 2 xjuncts. - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 604 locations, 1 error locations. TIMEOUT Result, 217.9s OverallTime, 8 OverallIterations, 4 TraceHistogramMax, 201.1s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 3770 SDtfs, 8490 SDslu, 1796 SDs, 0 SdLazy, 15846 SolverSat, 3616 SolverUnsat, 4 SolverUnknown, 0 SolverNotchecked, 153.6s Time, PredicateUnifierStatistics: 2 DeclaredPredicates, 247 GetRequests, 216 SyntacticMatches, 2 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 1.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=10392occurred in iteration=7, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 8.8s AbstIntTime, 2 AbstIntIterations, 1 AbstIntStrong, 0.9952720450281425 AbsIntWeakeningRatio, 0.13170731707317074 AbsIntAvgWeakeningVarsNumRemoved, 1038.5756097560975 AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.9s AutomataMinimizationTime, 7 MinimizatonAttempts, 560 StatesRemovedByMinimization, 5 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 2.2s InterpolantComputationTime, 980 NumberOfCodeBlocks, 980 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 973 ConstructedInterpolants, 0 QuantifiedInterpolants, 641576 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 7 InterpolantComputations, 6 PerfectInterpolantSequences, 277/349 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Completed graceful shutdown