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/Problem15_label58_true-unreach-call.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-d380424 [2018-10-24 21:53:30,256 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-10-24 21:53:30,258 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-10-24 21:53:30,273 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-10-24 21:53:30,274 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-10-24 21:53:30,275 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-10-24 21:53:30,276 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-10-24 21:53:30,278 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-10-24 21:53:30,279 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-10-24 21:53:30,281 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-10-24 21:53:30,282 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-10-24 21:53:30,283 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-10-24 21:53:30,283 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-10-24 21:53:30,290 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-10-24 21:53:30,291 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-10-24 21:53:30,292 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-10-24 21:53:30,293 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-10-24 21:53:30,295 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-10-24 21:53:30,297 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-10-24 21:53:30,298 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-10-24 21:53:30,299 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-10-24 21:53:30,301 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-10-24 21:53:30,303 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2018-10-24 21:53:30,309 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-10-24 21:53:30,309 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-10-24 21:53:30,310 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-10-24 21:53:30,311 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-10-24 21:53:30,311 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 [2018-10-24 21:53:30,327 INFO L110 SettingsManager]: Loading preferences was successful [2018-10-24 21:53:30,327 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-10-24 21:53:30,328 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-10-24 21:53:30,328 INFO L133 SettingsManager]: * User list type=DISABLED [2018-10-24 21:53:30,328 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-10-24 21:53:30,329 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-10-24 21:53:30,329 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-10-24 21:53:30,329 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-10-24 21:53:30,329 INFO L133 SettingsManager]: * Log string format=TERM [2018-10-24 21:53:30,329 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-10-24 21:53:30,330 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-10-24 21:53:30,330 INFO L133 SettingsManager]: * Interval Domain=false [2018-10-24 21:53:30,330 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-10-24 21:53:30,331 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-10-24 21:53:30,331 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-10-24 21:53:30,331 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-10-24 21:53:30,331 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-10-24 21:53:30,331 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-10-24 21:53:30,332 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-10-24 21:53:30,332 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-10-24 21:53:30,332 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-10-24 21:53:30,332 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-10-24 21:53:30,332 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-10-24 21:53:30,333 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-10-24 21:53:30,333 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-10-24 21:53:30,333 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-10-24 21:53:30,333 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-10-24 21:53:30,333 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-10-24 21:53:30,334 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-10-24 21:53:30,334 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-10-24 21:53:30,334 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-10-24 21:53:30,334 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-10-24 21:53:30,334 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-10-24 21:53:30,334 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-10-24 21:53:30,389 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-10-24 21:53:30,407 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-10-24 21:53:30,411 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-10-24 21:53:30,413 INFO L271 PluginConnector]: Initializing CDTParser... [2018-10-24 21:53:30,413 INFO L276 PluginConnector]: CDTParser initialized [2018-10-24 21:53:30,414 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem15_label58_true-unreach-call.c [2018-10-24 21:53:30,488 INFO L218 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/dc18eea2f/5779f0a378b840639b8858a3d19ca2ab/FLAG0fad460c4 [2018-10-24 21:53:31,171 INFO L298 CDTParser]: Found 1 translation units. [2018-10-24 21:53:31,172 INFO L158 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem15_label58_true-unreach-call.c [2018-10-24 21:53:31,198 INFO L346 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/dc18eea2f/5779f0a378b840639b8858a3d19ca2ab/FLAG0fad460c4 [2018-10-24 21:53:31,211 INFO L354 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/dc18eea2f/5779f0a378b840639b8858a3d19ca2ab [2018-10-24 21:53:31,223 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-10-24 21:53:31,224 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-10-24 21:53:31,225 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-10-24 21:53:31,226 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-10-24 21:53:31,230 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-10-24 21:53:31,231 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 09:53:31" (1/1) ... [2018-10-24 21:53:31,234 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4569e7cb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 09:53:31, skipping insertion in model container [2018-10-24 21:53:31,234 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 09:53:31" (1/1) ... [2018-10-24 21:53:31,245 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-10-24 21:53:31,348 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-10-24 21:53:32,155 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-24 21:53:32,160 INFO L189 MainTranslator]: Completed pre-run [2018-10-24 21:53:32,461 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-24 21:53:32,485 INFO L193 MainTranslator]: Completed translation [2018-10-24 21:53:32,486 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 09:53:32 WrapperNode [2018-10-24 21:53:32,486 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-10-24 21:53:32,487 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-10-24 21:53:32,487 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-10-24 21:53:32,487 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-10-24 21:53:32,498 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 09:53:32" (1/1) ... [2018-10-24 21:53:32,551 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 09:53:32" (1/1) ... [2018-10-24 21:53:32,854 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-10-24 21:53:32,855 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-10-24 21:53:32,855 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-10-24 21:53:32,855 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-10-24 21:53:32,866 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 09:53:32" (1/1) ... [2018-10-24 21:53:32,867 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 09:53:32" (1/1) ... [2018-10-24 21:53:32,885 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 09:53:32" (1/1) ... [2018-10-24 21:53:32,885 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 09:53:32" (1/1) ... [2018-10-24 21:53:32,984 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 09:53:32" (1/1) ... [2018-10-24 21:53:33,018 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 09:53:32" (1/1) ... [2018-10-24 21:53:33,058 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 09:53:32" (1/1) ... [2018-10-24 21:53:33,099 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-10-24 21:53:33,100 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-10-24 21:53:33,100 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-10-24 21:53:33,100 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-10-24 21:53:33,101 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 09:53:32" (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 [2018-10-24 21:53:33,171 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-10-24 21:53:33,171 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-10-24 21:53:33,172 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output2 [2018-10-24 21:53:33,172 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output2 [2018-10-24 21:53:33,172 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2018-10-24 21:53:33,172 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2018-10-24 21:53:33,172 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-10-24 21:53:33,172 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-10-24 21:53:33,173 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-10-24 21:53:33,173 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-10-24 21:53:40,908 INFO L341 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-10-24 21:53:40,909 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 09:53:40 BoogieIcfgContainer [2018-10-24 21:53:40,909 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-10-24 21:53:40,910 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-10-24 21:53:40,910 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-10-24 21:53:40,914 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-10-24 21:53:40,914 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.10 09:53:31" (1/3) ... [2018-10-24 21:53:40,915 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4740ee68 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 09:53:40, skipping insertion in model container [2018-10-24 21:53:40,915 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 09:53:32" (2/3) ... [2018-10-24 21:53:40,916 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4740ee68 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 09:53:40, skipping insertion in model container [2018-10-24 21:53:40,916 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 09:53:40" (3/3) ... [2018-10-24 21:53:40,918 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem15_label58_true-unreach-call.c [2018-10-24 21:53:40,927 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-10-24 21:53:40,936 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-10-24 21:53:40,954 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-10-24 21:53:40,995 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-10-24 21:53:40,995 INFO L383 AbstractCegarLoop]: Hoare is true [2018-10-24 21:53:40,996 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-10-24 21:53:40,996 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-10-24 21:53:40,996 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-10-24 21:53:40,996 INFO L387 AbstractCegarLoop]: Difference is false [2018-10-24 21:53:40,996 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-10-24 21:53:40,996 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-10-24 21:53:41,033 INFO L276 IsEmpty]: Start isEmpty. Operand 438 states. [2018-10-24 21:53:41,042 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2018-10-24 21:53:41,043 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 21:53:41,044 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-24 21:53:41,047 INFO L424 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 21:53:41,053 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 21:53:41,053 INFO L82 PathProgramCache]: Analyzing trace with hash -1265036959, now seen corresponding path program 1 times [2018-10-24 21:53:41,056 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-24 21:53:41,106 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 21:53:41,106 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 21:53:41,106 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 21:53:41,106 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-24 21:53:41,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 21:53:41,598 WARN L179 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 8 DAG size of output: 3 [2018-10-24 21:53:41,618 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-24 21:53:41,620 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-24 21:53:41,621 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-10-24 21:53:41,623 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-24 21:53:41,629 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-10-24 21:53:41,646 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-10-24 21:53:41,646 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-24 21:53:41,650 INFO L87 Difference]: Start difference. First operand 438 states. Second operand 4 states. [2018-10-24 21:53:52,007 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 21:53:52,007 INFO L93 Difference]: Finished difference Result 1558 states and 2849 transitions. [2018-10-24 21:53:52,008 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-10-24 21:53:52,009 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 57 [2018-10-24 21:53:52,010 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 21:53:52,044 INFO L225 Difference]: With dead ends: 1558 [2018-10-24 21:53:52,044 INFO L226 Difference]: Without dead ends: 1114 [2018-10-24 21:53:52,056 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 [2018-10-24 21:53:52,078 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1114 states. [2018-10-24 21:53:52,179 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1114 to 1091. [2018-10-24 21:53:52,181 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1091 states. [2018-10-24 21:53:52,189 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1091 states to 1091 states and 1853 transitions. [2018-10-24 21:53:52,191 INFO L78 Accepts]: Start accepts. Automaton has 1091 states and 1853 transitions. Word has length 57 [2018-10-24 21:53:52,192 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 21:53:52,192 INFO L481 AbstractCegarLoop]: Abstraction has 1091 states and 1853 transitions. [2018-10-24 21:53:52,192 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-10-24 21:53:52,193 INFO L276 IsEmpty]: Start isEmpty. Operand 1091 states and 1853 transitions. [2018-10-24 21:53:52,205 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2018-10-24 21:53:52,205 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 21:53:52,205 INFO L375 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-24 21:53:52,206 INFO L424 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 21:53:52,206 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 21:53:52,207 INFO L82 PathProgramCache]: Analyzing trace with hash 569089420, now seen corresponding path program 1 times [2018-10-24 21:53:52,207 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-24 21:53:52,208 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 21:53:52,208 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 21:53:52,208 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 21:53:52,208 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-24 21:53:52,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 21:53:52,506 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 50 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-24 21:53:52,506 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-24 21:53:52,506 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-10-24 21:53:52,506 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-24 21:53:52,508 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-10-24 21:53:52,509 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-10-24 21:53:52,509 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-10-24 21:53:52,509 INFO L87 Difference]: Start difference. First operand 1091 states and 1853 transitions. Second operand 5 states. [2018-10-24 21:54:00,691 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 21:54:00,691 INFO L93 Difference]: Finished difference Result 3240 states and 5580 transitions. [2018-10-24 21:54:00,694 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-10-24 21:54:00,694 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 130 [2018-10-24 21:54:00,695 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 21:54:00,716 INFO L225 Difference]: With dead ends: 3240 [2018-10-24 21:54:00,717 INFO L226 Difference]: Without dead ends: 2155 [2018-10-24 21:54:00,724 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2018-10-24 21:54:00,727 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2155 states. [2018-10-24 21:54:00,818 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2155 to 2114. [2018-10-24 21:54:00,819 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2114 states. [2018-10-24 21:54:00,830 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2114 states to 2114 states and 3176 transitions. [2018-10-24 21:54:00,830 INFO L78 Accepts]: Start accepts. Automaton has 2114 states and 3176 transitions. Word has length 130 [2018-10-24 21:54:00,831 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 21:54:00,831 INFO L481 AbstractCegarLoop]: Abstraction has 2114 states and 3176 transitions. [2018-10-24 21:54:00,831 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-10-24 21:54:00,831 INFO L276 IsEmpty]: Start isEmpty. Operand 2114 states and 3176 transitions. [2018-10-24 21:54:00,835 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 139 [2018-10-24 21:54:00,835 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 21:54:00,835 INFO L375 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-24 21:54:00,835 INFO L424 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 21:54:00,836 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 21:54:00,836 INFO L82 PathProgramCache]: Analyzing trace with hash 139406748, now seen corresponding path program 1 times [2018-10-24 21:54:00,836 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-24 21:54:00,837 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 21:54:00,837 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 21:54:00,837 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 21:54:00,837 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-24 21:54:00,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 21:54:01,101 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 50 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-24 21:54:01,102 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-24 21:54:01,102 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-10-24 21:54:01,102 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-24 21:54:01,104 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-10-24 21:54:01,105 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-10-24 21:54:01,105 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-24 21:54:01,106 INFO L87 Difference]: Start difference. First operand 2114 states and 3176 transitions. Second operand 4 states. [2018-10-24 21:54:08,458 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 21:54:08,458 INFO L93 Difference]: Finished difference Result 7943 states and 12452 transitions. [2018-10-24 21:54:08,461 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-10-24 21:54:08,461 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 138 [2018-10-24 21:54:08,462 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 21:54:08,507 INFO L225 Difference]: With dead ends: 7943 [2018-10-24 21:54:08,507 INFO L226 Difference]: Without dead ends: 5835 [2018-10-24 21:54:08,535 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 [2018-10-24 21:54:08,540 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5835 states. [2018-10-24 21:54:08,699 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5835 to 5835. [2018-10-24 21:54:08,700 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5835 states. [2018-10-24 21:54:08,740 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5835 states to 5835 states and 8168 transitions. [2018-10-24 21:54:08,741 INFO L78 Accepts]: Start accepts. Automaton has 5835 states and 8168 transitions. Word has length 138 [2018-10-24 21:54:08,741 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 21:54:08,741 INFO L481 AbstractCegarLoop]: Abstraction has 5835 states and 8168 transitions. [2018-10-24 21:54:08,742 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-10-24 21:54:08,742 INFO L276 IsEmpty]: Start isEmpty. Operand 5835 states and 8168 transitions. [2018-10-24 21:54:08,753 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 218 [2018-10-24 21:54:08,753 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 21:54:08,753 INFO L375 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2018-10-24 21:54:08,754 INFO L424 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 21:54:08,754 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 21:54:08,754 INFO L82 PathProgramCache]: Analyzing trace with hash 1463028007, now seen corresponding path program 1 times [2018-10-24 21:54:08,754 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-24 21:54:08,755 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 21:54:08,756 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 21:54:08,756 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 21:54:08,756 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-24 21:54:08,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 21:54:09,058 WARN L179 SmtUtils]: Spent 136.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 4 [2018-10-24 21:54:09,483 INFO L134 CoverageAnalysis]: Checked inductivity of 173 backedges. 100 proven. 68 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2018-10-24 21:54:09,483 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-24 21:54:09,483 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-10-24 21:54:09,485 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 218 with the following transitions: [2018-10-24 21:54:09,489 INFO L202 CegarAbsIntRunner]: [0], [1], [74], [81], [89], [97], [105], [113], [121], [129], [137], [145], [153], [161], [169], [177], [185], [193], [201], [209], [217], [225], [233], [241], [249], [257], [265], [273], [281], [289], [297], [305], [313], [321], [329], [337], [345], [353], [361], [369], [377], [385], [393], [401], [409], [417], [425], [429], [431], [434], [442], [450], [458], [466], [474], [482], [490], [498], [506], [514], [522], [530], [538], [546], [554], [562], [567], [571], [582], [585], [586], [590], [594], [598], [602], [606], [610], [614], [618], [622], [626], [630], [633], [638], [640], [1635], [1639], [1643], [1649], [1653], [1655], [1662], [1663], [1664], [1666], [1667] [2018-10-24 21:54:09,597 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-10-24 21:54:09,598 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-10-24 21:54:11,657 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-10-24 21:54:11,658 INFO L272 AbstractInterpreter]: Visited 90 different actions 90 times. Never merged. Never widened. Never found a fixpoint. Largest state had 24 variables. [2018-10-24 21:54:11,695 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 21:54:11,695 INFO L398 sIntCurrentIteration]: Generating AbsInt predicates [2018-10-24 21:54:13,448 INFO L232 lantSequenceWeakener]: Weakened 207 states. On average, predicates are now at 78.22% of their original sizes. [2018-10-24 21:54:13,449 INFO L411 sIntCurrentIteration]: Unifying AI predicates [2018-10-24 21:54:13,807 INFO L413 sIntCurrentIteration]: We have 216 unified AI predicates [2018-10-24 21:54:13,807 INFO L422 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-10-24 21:54:13,808 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-10-24 21:54:13,809 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [6] total 11 [2018-10-24 21:54:13,809 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-24 21:54:13,810 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-10-24 21:54:13,810 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-10-24 21:54:13,810 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2018-10-24 21:54:13,810 INFO L87 Difference]: Start difference. First operand 5835 states and 8168 transitions. Second operand 7 states. [2018-10-24 21:54:16,320 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-10-24 21:55:37,800 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 21:55:37,800 INFO L93 Difference]: Finished difference Result 11974 states and 16714 transitions. [2018-10-24 21:55:37,801 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-10-24 21:55:37,801 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 217 [2018-10-24 21:55:37,801 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 21:55:37,832 INFO L225 Difference]: With dead ends: 11974 [2018-10-24 21:55:37,832 INFO L226 Difference]: Without dead ends: 6145 [2018-10-24 21:55:37,862 INFO L605 BasicCegarLoop]: 2 DeclaredPredicates, 217 GetRequests, 211 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=21, Invalid=35, Unknown=0, NotChecked=0, Total=56 [2018-10-24 21:55:37,867 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6145 states. [2018-10-24 21:55:38,015 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6145 to 6143. [2018-10-24 21:55:38,016 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6143 states. [2018-10-24 21:55:38,040 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6143 states to 6143 states and 8484 transitions. [2018-10-24 21:55:38,041 INFO L78 Accepts]: Start accepts. Automaton has 6143 states and 8484 transitions. Word has length 217 [2018-10-24 21:55:38,041 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 21:55:38,041 INFO L481 AbstractCegarLoop]: Abstraction has 6143 states and 8484 transitions. [2018-10-24 21:55:38,042 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-10-24 21:55:38,042 INFO L276 IsEmpty]: Start isEmpty. Operand 6143 states and 8484 transitions. [2018-10-24 21:55:38,054 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 314 [2018-10-24 21:55:38,055 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 21:55:38,055 INFO L375 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 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] [2018-10-24 21:55:38,055 INFO L424 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 21:55:38,056 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 21:55:38,056 INFO L82 PathProgramCache]: Analyzing trace with hash 676565277, now seen corresponding path program 1 times [2018-10-24 21:55:38,056 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-24 21:55:38,057 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 21:55:38,057 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 21:55:38,057 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 21:55:38,057 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-24 21:55:38,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 21:55:38,471 INFO L134 CoverageAnalysis]: Checked inductivity of 381 backedges. 156 proven. 207 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2018-10-24 21:55:38,471 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-24 21:55:38,471 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-10-24 21:55:38,472 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 314 with the following transitions: [2018-10-24 21:55:38,472 INFO L202 CegarAbsIntRunner]: [0], [1], [74], [81], [89], [97], [105], [113], [121], [129], [137], [145], [153], [161], [169], [177], [185], [193], [201], [209], [217], [225], [233], [241], [249], [257], [265], [273], [281], [289], [297], [305], [313], [321], [329], [337], [345], [353], [361], [369], [377], [385], [393], [401], [409], [417], [425], [429], [431], [434], [442], [450], [458], [466], [474], [482], [490], [498], [506], [514], [522], [530], [538], [546], [554], [562], [567], [571], [582], [585], [586], [590], [594], [598], [602], [606], [610], [614], [618], [622], [626], [630], [633], [638], [640], [641], [645], [649], [653], [657], [668], [672], [676], [680], [684], [688], [691], [1635], [1639], [1643], [1649], [1653], [1655], [1662], [1663], [1664], [1666], [1667] [2018-10-24 21:55:38,478 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-10-24 21:55:38,478 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-10-24 21:55:40,576 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-10-24 21:55:45,072 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-10-24 21:55:45,073 INFO L272 AbstractInterpreter]: Visited 105 different actions 302 times. Merged at 5 different actions 9 times. Never widened. Found 1 fixpoints after 1 different actions. Largest state had 24 variables. [2018-10-24 21:55:45,084 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 21:55:45,084 INFO L398 sIntCurrentIteration]: Generating AbsInt predicates [2018-10-24 21:55:48,677 INFO L232 lantSequenceWeakener]: Weakened 53 states. On average, predicates are now at 78.39% of their original sizes. [2018-10-24 21:55:48,678 INFO L411 sIntCurrentIteration]: Unifying AI predicates Received shutdown request... [2018-10-24 21:57:29,307 WARN L550 AbstractCegarLoop]: Verification canceled [2018-10-24 21:57:29,311 WARN L205 ceAbstractionStarter]: Timeout [2018-10-24 21:57:29,311 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.10 09:57:29 BoogieIcfgContainer [2018-10-24 21:57:29,311 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-10-24 21:57:29,312 INFO L168 Benchmark]: Toolchain (without parser) took 238088.61 ms. Allocated memory was 1.5 GB in the beginning and 4.0 GB in the end (delta: 2.5 GB). Free memory was 1.4 GB in the beginning and 2.9 GB in the end (delta: -1.5 GB). Peak memory consumption was 1.0 GB. Max. memory is 7.1 GB. [2018-10-24 21:57:29,313 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. [2018-10-24 21:57:29,313 INFO L168 Benchmark]: CACSL2BoogieTranslator took 1260.92 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: 105.7 MB). Peak memory consumption was 105.7 MB. Max. memory is 7.1 GB. [2018-10-24 21:57:29,314 INFO L168 Benchmark]: Boogie Procedure Inliner took 367.62 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 746.1 MB). Free memory was 1.3 GB in the beginning and 2.2 GB in the end (delta: -863.1 MB). Peak memory consumption was 33.5 MB. Max. memory is 7.1 GB. [2018-10-24 21:57:29,315 INFO L168 Benchmark]: Boogie Preprocessor took 244.49 ms. Allocated memory is still 2.3 GB. Free memory was 2.2 GB in the beginning and 2.1 GB in the end (delta: 28.0 MB). Peak memory consumption was 28.0 MB. Max. memory is 7.1 GB. [2018-10-24 21:57:29,316 INFO L168 Benchmark]: RCFGBuilder took 7809.43 ms. Allocated memory is still 2.3 GB. Free memory was 2.1 GB in the beginning and 1.8 GB in the end (delta: 303.6 MB). Peak memory consumption was 303.6 MB. Max. memory is 7.1 GB. [2018-10-24 21:57:29,317 INFO L168 Benchmark]: TraceAbstraction took 228401.00 ms. Allocated memory was 2.3 GB in the beginning and 4.0 GB in the end (delta: 1.8 GB). Free memory was 1.8 GB in the beginning and 2.9 GB in the end (delta: -1.0 GB). Peak memory consumption was 727.0 MB. Max. memory is 7.1 GB. [2018-10-24 21:57:29,322 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 1260.92 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: 105.7 MB). Peak memory consumption was 105.7 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 367.62 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 746.1 MB). Free memory was 1.3 GB in the beginning and 2.2 GB in the end (delta: -863.1 MB). Peak memory consumption was 33.5 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 244.49 ms. Allocated memory is still 2.3 GB. Free memory was 2.2 GB in the beginning and 2.1 GB in the end (delta: 28.0 MB). Peak memory consumption was 28.0 MB. Max. memory is 7.1 GB. * RCFGBuilder took 7809.43 ms. Allocated memory is still 2.3 GB. Free memory was 2.1 GB in the beginning and 1.8 GB in the end (delta: 303.6 MB). Peak memory consumption was 303.6 MB. Max. memory is 7.1 GB. * TraceAbstraction took 228401.00 ms. Allocated memory was 2.3 GB in the beginning and 4.0 GB in the end (delta: 1.8 GB). Free memory was 1.8 GB in the beginning and 2.9 GB in the end (delta: -1.0 GB). Peak memory consumption was 727.0 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResultAtElement [Line: 157]: Timeout (TraceAbstraction) Unable to prove that call of __VERIFIER_error() unreachable (line 157). Cancelled while BasicCegarLoop was analyzing trace of length 314 with TraceHistMax 4,while AbsIntCurrentIteration was generating AI predicates,while PredicateComparison was comparing new predicate (quantifier-free) to 14 known predicates. - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 438 locations, 1 error locations. TIMEOUT Result, 228.3s OverallTime, 5 OverallIterations, 4 TraceHistogramMax, 110.1s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 1159 SDtfs, 3421 SDslu, 1018 SDs, 0 SdLazy, 6952 SolverSat, 1843 SolverUnsat, 2 SolverUnknown, 0 SolverNotchecked, 80.3s Time, PredicateUnifierStatistics: 2 DeclaredPredicates, 237 GetRequests, 221 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=6143occurred in iteration=4, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 8.8s AbstIntTime, 2 AbstIntIterations, 2 AbstIntStrong, 0.9955362044356609 AbsIntWeakeningRatio, 0.11363636363636363 AbsIntAvgWeakeningVarsNumRemoved, 594.7537878787879 AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.6s AutomataMinimizationTime, 4 MinimizatonAttempts, 66 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 1.4s InterpolantComputationTime, 542 NumberOfCodeBlocks, 542 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 538 ConstructedInterpolants, 0 QuantifiedInterpolants, 250074 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 4 InterpolantComputations, 3 PerfectInterpolantSequences, 205/273 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Completed graceful shutdown