java -Xmx8000000000 -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml --generate-csv --csv-dir csv -s ../../../trunk/examples/settings/default/taipan/svcomp-Reach-64bit-Taipan_Default-old.epf -i ../../../trunk/examples/svcomp/eca-rers2012/Problem14_label03_true-unreach-call_false-termination.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-dd2f093 [2018-07-23 22:27:46,246 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-07-23 22:27:46,249 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-07-23 22:27:46,262 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-07-23 22:27:46,262 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-07-23 22:27:46,263 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-07-23 22:27:46,265 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-07-23 22:27:46,267 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-07-23 22:27:46,268 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-07-23 22:27:46,269 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-07-23 22:27:46,270 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-07-23 22:27:46,270 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-07-23 22:27:46,271 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-07-23 22:27:46,272 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-07-23 22:27:46,273 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-07-23 22:27:46,274 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-07-23 22:27:46,275 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-07-23 22:27:46,277 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-07-23 22:27:46,279 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-07-23 22:27:46,281 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-07-23 22:27:46,282 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-07-23 22:27:46,283 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-07-23 22:27:46,285 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-07-23 22:27:46,286 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-07-23 22:27:46,286 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-07-23 22:27:46,287 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-07-23 22:27:46,288 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-07-23 22:27:46,288 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-07-23 22:27:46,289 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-07-23 22:27:46,290 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-07-23 22:27:46,291 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-07-23 22:27:46,291 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-07-23 22:27:46,292 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-07-23 22:27:46,292 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-07-23 22:27:46,293 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-07-23 22:27:46,294 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-07-23 22:27:46,294 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/taipan/svcomp-Reach-64bit-Taipan_Default-old.epf [2018-07-23 22:27:46,311 INFO L110 SettingsManager]: Loading preferences was successful [2018-07-23 22:27:46,312 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-07-23 22:27:46,312 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-07-23 22:27:46,313 INFO L133 SettingsManager]: * User list type=DISABLED [2018-07-23 22:27:46,313 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-07-23 22:27:46,313 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-07-23 22:27:46,314 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-07-23 22:27:46,315 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-07-23 22:27:46,315 INFO L133 SettingsManager]: * Log string format=TERM [2018-07-23 22:27:46,315 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-07-23 22:27:46,315 INFO L133 SettingsManager]: * Interval Domain=false [2018-07-23 22:27:46,316 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-07-23 22:27:46,316 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-07-23 22:27:46,317 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-07-23 22:27:46,317 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-07-23 22:27:46,317 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-07-23 22:27:46,318 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-07-23 22:27:46,318 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-07-23 22:27:46,318 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-07-23 22:27:46,318 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-07-23 22:27:46,318 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-07-23 22:27:46,318 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-07-23 22:27:46,319 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-07-23 22:27:46,319 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-07-23 22:27:46,319 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-07-23 22:27:46,320 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-07-23 22:27:46,321 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-07-23 22:27:46,321 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-07-23 22:27:46,321 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-07-23 22:27:46,321 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-07-23 22:27:46,321 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-07-23 22:27:46,322 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-07-23 22:27:46,322 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-07-23 22:27:46,374 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-07-23 22:27:46,387 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-07-23 22:27:46,391 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-07-23 22:27:46,392 INFO L271 PluginConnector]: Initializing CDTParser... [2018-07-23 22:27:46,393 INFO L276 PluginConnector]: CDTParser initialized [2018-07-23 22:27:46,394 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem14_label03_true-unreach-call_false-termination.c [2018-07-23 22:27:46,719 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/314b82a5f/d57156f7dae44a0987cc4ba0c1a9c9de/FLAGa8b505fa9 [2018-07-23 22:27:47,026 INFO L276 CDTParser]: Found 1 translation units. [2018-07-23 22:27:47,027 INFO L158 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem14_label03_true-unreach-call_false-termination.c [2018-07-23 22:27:47,048 INFO L324 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/314b82a5f/d57156f7dae44a0987cc4ba0c1a9c9de/FLAGa8b505fa9 [2018-07-23 22:27:47,078 INFO L332 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/314b82a5f/d57156f7dae44a0987cc4ba0c1a9c9de [2018-07-23 22:27:47,089 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-07-23 22:27:47,091 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-07-23 22:27:47,092 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-07-23 22:27:47,092 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-07-23 22:27:47,101 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-07-23 22:27:47,103 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.07 10:27:47" (1/1) ... [2018-07-23 22:27:47,106 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@42258277 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 10:27:47, skipping insertion in model container [2018-07-23 22:27:47,107 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.07 10:27:47" (1/1) ... [2018-07-23 22:27:47,325 INFO L179 PRDispatcher]: Starting pre-run dispatcher in SV-COMP mode [2018-07-23 22:27:47,638 INFO L175 PostProcessor]: Settings: Checked method=main [2018-07-23 22:27:47,655 INFO L422 MainDispatcher]: Starting main dispatcher in SV-COMP mode [2018-07-23 22:27:47,846 INFO L175 PostProcessor]: Settings: Checked method=main [2018-07-23 22:27:47,904 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 10:27:47 WrapperNode [2018-07-23 22:27:47,905 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-07-23 22:27:47,906 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-07-23 22:27:47,906 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-07-23 22:27:47,906 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-07-23 22:27:47,916 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 10:27:47" (1/1) ... [2018-07-23 22:27:47,952 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 10:27:47" (1/1) ... [2018-07-23 22:27:48,050 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-07-23 22:27:48,050 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-07-23 22:27:48,051 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-07-23 22:27:48,051 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-07-23 22:27:48,062 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 10:27:47" (1/1) ... [2018-07-23 22:27:48,062 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 10:27:47" (1/1) ... [2018-07-23 22:27:48,069 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 10:27:47" (1/1) ... [2018-07-23 22:27:48,070 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 10:27:47" (1/1) ... [2018-07-23 22:27:48,108 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 10:27:47" (1/1) ... [2018-07-23 22:27:48,132 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 10:27:47" (1/1) ... [2018-07-23 22:27:48,153 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 10:27:47" (1/1) ... [2018-07-23 22:27:48,166 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-07-23 22:27:48,166 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-07-23 22:27:48,166 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-07-23 22:27:48,167 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-07-23 22:27:48,168 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 10:27:47" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-07-23 22:27:48,414 INFO L130 BoogieDeclarations]: Found specification of procedure __U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___true_unreach_call_false_termination_c__calculate_output [2018-07-23 22:27:48,414 INFO L138 BoogieDeclarations]: Found implementation of procedure __U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___true_unreach_call_false_termination_c__calculate_output [2018-07-23 22:27:48,414 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-07-23 22:27:48,415 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-07-23 22:27:48,415 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-07-23 22:27:48,415 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-07-23 22:27:48,415 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-07-23 22:27:48,415 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-07-23 22:27:51,973 INFO L261 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-07-23 22:27:51,974 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.07 10:27:51 BoogieIcfgContainer [2018-07-23 22:27:51,974 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-07-23 22:27:51,975 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-07-23 22:27:51,975 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-07-23 22:27:51,978 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-07-23 22:27:51,979 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.07 10:27:47" (1/3) ... [2018-07-23 22:27:51,980 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@19aed776 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.07 10:27:51, skipping insertion in model container [2018-07-23 22:27:51,980 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 10:27:47" (2/3) ... [2018-07-23 22:27:51,980 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@19aed776 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.07 10:27:51, skipping insertion in model container [2018-07-23 22:27:51,980 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.07 10:27:51" (3/3) ... [2018-07-23 22:27:51,983 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem14_label03_true-unreach-call_false-termination.c [2018-07-23 22:27:52,005 INFO L132 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-07-23 22:27:52,019 INFO L144 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-07-23 22:27:52,078 INFO L128 ementStrategyFactory]: Using default assertion order modulation [2018-07-23 22:27:52,079 INFO L373 AbstractCegarLoop]: Interprodecural is true [2018-07-23 22:27:52,079 INFO L374 AbstractCegarLoop]: Hoare is true [2018-07-23 22:27:52,079 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-07-23 22:27:52,079 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-07-23 22:27:52,080 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-07-23 22:27:52,080 INFO L378 AbstractCegarLoop]: Difference is false [2018-07-23 22:27:52,080 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-07-23 22:27:52,080 INFO L384 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-07-23 22:27:52,106 INFO L276 IsEmpty]: Start isEmpty. Operand 255 states. [2018-07-23 22:27:52,116 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2018-07-23 22:27:52,116 INFO L345 BasicCegarLoop]: Found error trace [2018-07-23 22:27:52,119 INFO L353 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-07-23 22:27:52,119 INFO L414 AbstractCegarLoop]: === Iteration 1 === [__U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___true_unreach_call_false_termination_c__calculate_outputErr0AssertViolationERROR_FUNCTION]=== [2018-07-23 22:27:52,125 INFO L82 PathProgramCache]: Analyzing trace with hash 1455829652, now seen corresponding path program 1 times [2018-07-23 22:27:52,128 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-07-23 22:27:52,181 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-23 22:27:52,181 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-23 22:27:52,182 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-23 22:27:52,183 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-07-23 22:27:52,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 22:27:52,591 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 22:27:52,594 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-23 22:27:52,594 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-07-23 22:27:52,594 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-07-23 22:27:52,601 INFO L450 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-07-23 22:27:52,616 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-07-23 22:27:52,617 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-07-23 22:27:52,620 INFO L87 Difference]: Start difference. First operand 255 states. Second operand 3 states. [2018-07-23 22:27:54,636 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 22:27:54,637 INFO L93 Difference]: Finished difference Result 691 states and 1226 transitions. [2018-07-23 22:27:54,637 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-07-23 22:27:54,639 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 58 [2018-07-23 22:27:54,640 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 22:27:54,660 INFO L225 Difference]: With dead ends: 691 [2018-07-23 22:27:54,660 INFO L226 Difference]: Without dead ends: 434 [2018-07-23 22:27:54,667 INFO L573 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 2 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-07-23 22:27:54,685 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 434 states. [2018-07-23 22:27:54,748 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 434 to 434. [2018-07-23 22:27:54,750 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 434 states. [2018-07-23 22:27:54,754 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 434 states to 434 states and 765 transitions. [2018-07-23 22:27:54,756 INFO L78 Accepts]: Start accepts. Automaton has 434 states and 765 transitions. Word has length 58 [2018-07-23 22:27:54,757 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 22:27:54,757 INFO L471 AbstractCegarLoop]: Abstraction has 434 states and 765 transitions. [2018-07-23 22:27:54,757 INFO L472 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-07-23 22:27:54,757 INFO L276 IsEmpty]: Start isEmpty. Operand 434 states and 765 transitions. [2018-07-23 22:27:54,765 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 129 [2018-07-23 22:27:54,765 INFO L345 BasicCegarLoop]: Found error trace [2018-07-23 22:27:54,766 INFO L353 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, 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] [2018-07-23 22:27:54,766 INFO L414 AbstractCegarLoop]: === Iteration 2 === [__U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___true_unreach_call_false_termination_c__calculate_outputErr0AssertViolationERROR_FUNCTION]=== [2018-07-23 22:27:54,766 INFO L82 PathProgramCache]: Analyzing trace with hash -1825091112, now seen corresponding path program 1 times [2018-07-23 22:27:54,766 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-07-23 22:27:54,768 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-23 22:27:54,768 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-23 22:27:54,768 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-23 22:27:54,768 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-07-23 22:27:54,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 22:27:55,097 INFO L134 CoverageAnalysis]: Checked inductivity of 51 backedges. 51 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 22:27:55,097 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-23 22:27:55,098 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-07-23 22:27:55,098 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-07-23 22:27:55,100 INFO L450 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-07-23 22:27:55,100 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-07-23 22:27:55,101 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-07-23 22:27:55,101 INFO L87 Difference]: Start difference. First operand 434 states and 765 transitions. Second operand 6 states. [2018-07-23 22:27:59,209 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 22:27:59,210 INFO L93 Difference]: Finished difference Result 1588 states and 2935 transitions. [2018-07-23 22:27:59,212 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-07-23 22:27:59,212 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 128 [2018-07-23 22:27:59,212 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 22:27:59,221 INFO L225 Difference]: With dead ends: 1588 [2018-07-23 22:27:59,222 INFO L226 Difference]: Without dead ends: 1160 [2018-07-23 22:27:59,226 INFO L573 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2018-07-23 22:27:59,227 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1160 states. [2018-07-23 22:27:59,279 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1160 to 1153. [2018-07-23 22:27:59,280 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1153 states. [2018-07-23 22:27:59,287 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1153 states to 1153 states and 1887 transitions. [2018-07-23 22:27:59,288 INFO L78 Accepts]: Start accepts. Automaton has 1153 states and 1887 transitions. Word has length 128 [2018-07-23 22:27:59,288 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 22:27:59,288 INFO L471 AbstractCegarLoop]: Abstraction has 1153 states and 1887 transitions. [2018-07-23 22:27:59,289 INFO L472 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-07-23 22:27:59,289 INFO L276 IsEmpty]: Start isEmpty. Operand 1153 states and 1887 transitions. [2018-07-23 22:27:59,293 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2018-07-23 22:27:59,293 INFO L345 BasicCegarLoop]: Found error trace [2018-07-23 22:27:59,293 INFO L353 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, 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] [2018-07-23 22:27:59,293 INFO L414 AbstractCegarLoop]: === Iteration 3 === [__U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___true_unreach_call_false_termination_c__calculate_outputErr0AssertViolationERROR_FUNCTION]=== [2018-07-23 22:27:59,294 INFO L82 PathProgramCache]: Analyzing trace with hash -1729363299, now seen corresponding path program 1 times [2018-07-23 22:27:59,294 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-07-23 22:27:59,295 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-23 22:27:59,295 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-23 22:27:59,295 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-23 22:27:59,296 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-07-23 22:27:59,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 22:27:59,514 INFO L134 CoverageAnalysis]: Checked inductivity of 51 backedges. 51 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 22:27:59,514 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-23 22:27:59,514 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-07-23 22:27:59,514 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-07-23 22:27:59,515 INFO L450 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-07-23 22:27:59,515 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-07-23 22:27:59,516 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-07-23 22:27:59,516 INFO L87 Difference]: Start difference. First operand 1153 states and 1887 transitions. Second operand 5 states. [2018-07-23 22:28:02,465 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 22:28:02,466 INFO L93 Difference]: Finished difference Result 2716 states and 4601 transitions. [2018-07-23 22:28:02,467 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-07-23 22:28:02,468 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 129 [2018-07-23 22:28:02,471 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 22:28:02,487 INFO L225 Difference]: With dead ends: 2716 [2018-07-23 22:28:02,488 INFO L226 Difference]: Without dead ends: 1569 [2018-07-23 22:28:02,493 INFO L573 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2018-07-23 22:28:02,494 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1569 states. [2018-07-23 22:28:02,560 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1569 to 1538. [2018-07-23 22:28:02,561 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1538 states. [2018-07-23 22:28:02,568 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1538 states to 1538 states and 2356 transitions. [2018-07-23 22:28:02,568 INFO L78 Accepts]: Start accepts. Automaton has 1538 states and 2356 transitions. Word has length 129 [2018-07-23 22:28:02,569 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 22:28:02,569 INFO L471 AbstractCegarLoop]: Abstraction has 1538 states and 2356 transitions. [2018-07-23 22:28:02,569 INFO L472 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-07-23 22:28:02,569 INFO L276 IsEmpty]: Start isEmpty. Operand 1538 states and 2356 transitions. [2018-07-23 22:28:02,574 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2018-07-23 22:28:02,574 INFO L345 BasicCegarLoop]: Found error trace [2018-07-23 22:28:02,574 INFO L353 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, 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] [2018-07-23 22:28:02,574 INFO L414 AbstractCegarLoop]: === Iteration 4 === [__U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___true_unreach_call_false_termination_c__calculate_outputErr0AssertViolationERROR_FUNCTION]=== [2018-07-23 22:28:02,575 INFO L82 PathProgramCache]: Analyzing trace with hash 1427880185, now seen corresponding path program 1 times [2018-07-23 22:28:02,575 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-07-23 22:28:02,578 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-23 22:28:02,578 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-23 22:28:02,578 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-23 22:28:02,578 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-07-23 22:28:02,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 22:28:02,726 INFO L134 CoverageAnalysis]: Checked inductivity of 51 backedges. 51 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 22:28:02,726 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-23 22:28:02,726 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-07-23 22:28:02,726 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-07-23 22:28:02,727 INFO L450 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-07-23 22:28:02,728 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-07-23 22:28:02,729 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-07-23 22:28:02,729 INFO L87 Difference]: Start difference. First operand 1538 states and 2356 transitions. Second operand 5 states. [2018-07-23 22:28:05,496 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 22:28:05,496 INFO L93 Difference]: Finished difference Result 4907 states and 7504 transitions. [2018-07-23 22:28:05,498 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-07-23 22:28:05,499 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 131 [2018-07-23 22:28:05,499 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 22:28:05,520 INFO L225 Difference]: With dead ends: 4907 [2018-07-23 22:28:05,520 INFO L226 Difference]: Without dead ends: 3375 [2018-07-23 22:28:05,533 INFO L573 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 [2018-07-23 22:28:05,536 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3375 states. [2018-07-23 22:28:05,624 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3375 to 3262. [2018-07-23 22:28:05,624 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3262 states. [2018-07-23 22:28:05,636 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3262 states to 3262 states and 4436 transitions. [2018-07-23 22:28:05,637 INFO L78 Accepts]: Start accepts. Automaton has 3262 states and 4436 transitions. Word has length 131 [2018-07-23 22:28:05,637 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 22:28:05,637 INFO L471 AbstractCegarLoop]: Abstraction has 3262 states and 4436 transitions. [2018-07-23 22:28:05,637 INFO L472 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-07-23 22:28:05,637 INFO L276 IsEmpty]: Start isEmpty. Operand 3262 states and 4436 transitions. [2018-07-23 22:28:05,639 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2018-07-23 22:28:05,639 INFO L345 BasicCegarLoop]: Found error trace [2018-07-23 22:28:05,640 INFO L353 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, 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] [2018-07-23 22:28:05,640 INFO L414 AbstractCegarLoop]: === Iteration 5 === [__U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___true_unreach_call_false_termination_c__calculate_outputErr0AssertViolationERROR_FUNCTION]=== [2018-07-23 22:28:05,640 INFO L82 PathProgramCache]: Analyzing trace with hash 572547600, now seen corresponding path program 1 times [2018-07-23 22:28:05,640 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-07-23 22:28:05,641 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-23 22:28:05,641 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-23 22:28:05,641 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-23 22:28:05,642 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-07-23 22:28:05,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 22:28:05,762 INFO L134 CoverageAnalysis]: Checked inductivity of 51 backedges. 51 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 22:28:05,763 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-23 22:28:05,763 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-07-23 22:28:05,763 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-07-23 22:28:05,764 INFO L450 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-07-23 22:28:05,764 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-07-23 22:28:05,764 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-07-23 22:28:05,764 INFO L87 Difference]: Start difference. First operand 3262 states and 4436 transitions. Second operand 4 states. [2018-07-23 22:28:08,138 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 22:28:08,139 INFO L93 Difference]: Finished difference Result 8795 states and 12468 transitions. [2018-07-23 22:28:08,140 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-07-23 22:28:08,140 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 132 [2018-07-23 22:28:08,140 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 22:28:08,170 INFO L225 Difference]: With dead ends: 8795 [2018-07-23 22:28:08,171 INFO L226 Difference]: Without dead ends: 5539 [2018-07-23 22:28:08,192 INFO L573 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 [2018-07-23 22:28:08,196 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5539 states. [2018-07-23 22:28:08,309 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5539 to 5539. [2018-07-23 22:28:08,309 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5539 states. [2018-07-23 22:28:08,326 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5539 states to 5539 states and 7494 transitions. [2018-07-23 22:28:08,326 INFO L78 Accepts]: Start accepts. Automaton has 5539 states and 7494 transitions. Word has length 132 [2018-07-23 22:28:08,327 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 22:28:08,327 INFO L471 AbstractCegarLoop]: Abstraction has 5539 states and 7494 transitions. [2018-07-23 22:28:08,327 INFO L472 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-07-23 22:28:08,327 INFO L276 IsEmpty]: Start isEmpty. Operand 5539 states and 7494 transitions. [2018-07-23 22:28:08,346 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 277 [2018-07-23 22:28:08,347 INFO L345 BasicCegarLoop]: Found error trace [2018-07-23 22:28:08,347 INFO L353 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-07-23 22:28:08,347 INFO L414 AbstractCegarLoop]: === Iteration 6 === [__U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___true_unreach_call_false_termination_c__calculate_outputErr0AssertViolationERROR_FUNCTION]=== [2018-07-23 22:28:08,348 INFO L82 PathProgramCache]: Analyzing trace with hash -466363196, now seen corresponding path program 1 times [2018-07-23 22:28:08,348 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-07-23 22:28:08,349 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-23 22:28:08,349 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-23 22:28:08,349 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-23 22:28:08,349 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-07-23 22:28:08,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 22:28:08,684 WARN L169 SmtUtils]: Spent 100.00 ms on a formula simplification that was a NOOP. DAG size: 9 [2018-07-23 22:28:09,472 INFO L134 CoverageAnalysis]: Checked inductivity of 207 backedges. 205 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 22:28:09,473 INFO L297 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-07-23 22:28:09,473 INFO L191 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-07-23 22:28:09,474 INFO L199 CegarAbsIntRunner]: Running AI on error trace of length 277 with the following transitions: [2018-07-23 22:28:09,477 INFO L201 CegarAbsIntRunner]: [0], [7], [15], [23], [31], [39], [47], [55], [63], [71], [79], [87], [95], [103], [111], [119], [127], [135], [143], [151], [159], [167], [175], [183], [191], [199], [207], [215], [223], [231], [239], [247], [255], [263], [271], [279], [287], [295], [303], [311], [319], [327], [335], [343], [351], [359], [363], [365], [368], [376], [384], [392], [400], [408], [416], [424], [432], [440], [448], [456], [464], [472], [480], [488], [493], [497], [501], [505], [509], [513], [517], [521], [525], [529], [533], [537], [541], [545], [549], [553], [557], [561], [565], [569], [573], [577], [581], [585], [589], [593], [597], [601], [605], [609], [613], [617], [621], [625], [629], [632], [633], [637], [641], [645], [649], [653], [657], [661], [664], [946], [947], [948], [952], [956], [962], [966], [968], [973], [974], [975], [977], [978] [2018-07-23 22:28:09,542 INFO L148 AbstractInterpreter]: Using domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-07-23 22:28:09,542 INFO L101 FixpointEngine]: Starting fixpoint engine with domain CompoundDomain (maxUnwinding=3, maxParallelStates=2) [2018-07-23 22:28:15,711 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-07-23 22:28:15,713 INFO L272 AbstractInterpreter]: Visited 118 different actions 118 times. Never merged. Never widened. Never found a fixpoint. Largest state had 24 variables. [2018-07-23 22:28:15,728 INFO L395 sIntCurrentIteration]: Generating AbsInt predicates [2018-07-23 22:28:20,506 INFO L232 lantSequenceWeakener]: Weakened 268 states. On average, predicates are now at 78.02% of their original sizes. [2018-07-23 22:28:20,507 INFO L408 sIntCurrentIteration]: Unifying AI predicates [2018-07-23 22:28:20,779 INFO L419 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-07-23 22:28:20,780 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-07-23 22:28:20,781 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [10] total 15 [2018-07-23 22:28:20,781 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-07-23 22:28:20,781 INFO L450 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-07-23 22:28:20,782 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-07-23 22:28:20,782 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2018-07-23 22:28:20,782 INFO L87 Difference]: Start difference. First operand 5539 states and 7494 transitions. Second operand 7 states. [2018-07-23 22:28:30,394 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-07-23 22:28:47,892 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 22:28:47,893 INFO L93 Difference]: Finished difference Result 11257 states and 15211 transitions. [2018-07-23 22:28:47,893 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-07-23 22:28:47,893 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 276 [2018-07-23 22:28:47,894 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 22:28:47,921 INFO L225 Difference]: With dead ends: 11257 [2018-07-23 22:28:47,922 INFO L226 Difference]: Without dead ends: 5724 [2018-07-23 22:28:47,944 INFO L573 BasicCegarLoop]: 2 DeclaredPredicates, 276 GetRequests, 270 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=21, Invalid=35, Unknown=0, NotChecked=0, Total=56 [2018-07-23 22:28:47,949 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5724 states. [2018-07-23 22:28:48,083 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5724 to 5722. [2018-07-23 22:28:48,084 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5722 states. [2018-07-23 22:28:48,101 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5722 states to 5722 states and 7685 transitions. [2018-07-23 22:28:48,102 INFO L78 Accepts]: Start accepts. Automaton has 5722 states and 7685 transitions. Word has length 276 [2018-07-23 22:28:48,102 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 22:28:48,102 INFO L471 AbstractCegarLoop]: Abstraction has 5722 states and 7685 transitions. [2018-07-23 22:28:48,102 INFO L472 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-07-23 22:28:48,103 INFO L276 IsEmpty]: Start isEmpty. Operand 5722 states and 7685 transitions. [2018-07-23 22:28:48,127 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 362 [2018-07-23 22:28:48,128 INFO L345 BasicCegarLoop]: Found error trace [2018-07-23 22:28:48,128 INFO L353 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, 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, 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] [2018-07-23 22:28:48,129 INFO L414 AbstractCegarLoop]: === Iteration 7 === [__U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___true_unreach_call_false_termination_c__calculate_outputErr0AssertViolationERROR_FUNCTION]=== [2018-07-23 22:28:48,129 INFO L82 PathProgramCache]: Analyzing trace with hash -1729543407, now seen corresponding path program 1 times [2018-07-23 22:28:48,133 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-07-23 22:28:48,134 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-23 22:28:48,135 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-23 22:28:48,135 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-23 22:28:48,135 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-07-23 22:28:48,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 22:28:49,124 INFO L134 CoverageAnalysis]: Checked inductivity of 428 backedges. 241 proven. 182 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2018-07-23 22:28:49,124 INFO L297 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-07-23 22:28:49,125 INFO L191 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-07-23 22:28:49,125 INFO L199 CegarAbsIntRunner]: Running AI on error trace of length 362 with the following transitions: [2018-07-23 22:28:49,125 INFO L201 CegarAbsIntRunner]: [0], [7], [15], [23], [31], [39], [47], [55], [63], [71], [79], [87], [95], [103], [111], [119], [127], [135], [143], [151], [159], [167], [175], [183], [191], [199], [207], [215], [223], [231], [239], [247], [255], [263], [271], [279], [287], [295], [303], [311], [319], [327], [335], [343], [351], [359], [363], [365], [368], [376], [384], [392], [400], [408], [416], [424], [432], [440], [448], [456], [464], [472], [480], [488], [493], [497], [501], [505], [509], [513], [517], [521], [525], [529], [533], [537], [541], [545], [549], [552], [553], [557], [561], [565], [569], [573], [577], [581], [585], [589], [593], [597], [601], [605], [609], [613], [617], [621], [625], [629], [632], [633], [637], [641], [645], [649], [653], [657], [661], [664], [946], [947], [948], [952], [956], [962], [966], [968], [973], [974], [975], [977], [978] [2018-07-23 22:28:49,132 INFO L148 AbstractInterpreter]: Using domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-07-23 22:28:49,132 INFO L101 FixpointEngine]: Starting fixpoint engine with domain CompoundDomain (maxUnwinding=3, maxParallelStates=2) [2018-07-23 22:29:02,642 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-07-23 22:29:02,643 INFO L272 AbstractInterpreter]: Visited 122 different actions 237 times. Merged at 4 different actions 4 times. Never widened. Found 1 fixpoints after 1 different actions. Largest state had 24 variables. [2018-07-23 22:29:02,650 INFO L395 sIntCurrentIteration]: Generating AbsInt predicates [2018-07-23 22:29:12,161 INFO L232 lantSequenceWeakener]: Weakened 359 states. On average, predicates are now at 77.9% of their original sizes. [2018-07-23 22:29:12,161 INFO L408 sIntCurrentIteration]: Unifying AI predicates [2018-07-23 22:29:14,017 INFO L419 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-07-23 22:29:14,018 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-07-23 22:29:14,018 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [11] imperfect sequences [12] total 21 [2018-07-23 22:29:14,018 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-07-23 22:29:14,019 INFO L450 AbstractCegarLoop]: Interpolant automaton has 11 states [2018-07-23 22:29:14,019 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2018-07-23 22:29:14,020 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=80, Unknown=0, NotChecked=0, Total=110 [2018-07-23 22:29:14,020 INFO L87 Difference]: Start difference. First operand 5722 states and 7685 transitions. Second operand 11 states. [2018-07-23 22:29:54,572 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-07-23 22:30:30,267 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 22:30:30,268 INFO L93 Difference]: Finished difference Result 11627 states and 15592 transitions. [2018-07-23 22:30:30,268 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2018-07-23 22:30:30,268 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 361 [2018-07-23 22:30:30,269 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 22:30:30,292 INFO L225 Difference]: With dead ends: 11627 [2018-07-23 22:30:30,293 INFO L226 Difference]: Without dead ends: 5724 [2018-07-23 22:30:30,314 INFO L573 BasicCegarLoop]: 2 DeclaredPredicates, 367 GetRequests, 305 SyntacticMatches, 46 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 292 ImplicationChecksByTransitivity, 2.0s TimeCoverageRelationStatistics Valid=74, Invalid=232, Unknown=0, NotChecked=0, Total=306 [2018-07-23 22:30:30,318 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5724 states. [2018-07-23 22:30:30,442 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5724 to 5722. [2018-07-23 22:30:30,443 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5722 states. [2018-07-23 22:30:30,460 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5722 states to 5722 states and 7679 transitions. [2018-07-23 22:30:30,461 INFO L78 Accepts]: Start accepts. Automaton has 5722 states and 7679 transitions. Word has length 361 [2018-07-23 22:30:30,461 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 22:30:30,462 INFO L471 AbstractCegarLoop]: Abstraction has 5722 states and 7679 transitions. [2018-07-23 22:30:30,462 INFO L472 AbstractCegarLoop]: Interpolant automaton has 11 states. [2018-07-23 22:30:30,462 INFO L276 IsEmpty]: Start isEmpty. Operand 5722 states and 7679 transitions. [2018-07-23 22:30:30,486 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 388 [2018-07-23 22:30:30,486 INFO L345 BasicCegarLoop]: Found error trace [2018-07-23 22:30:30,487 INFO L353 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, 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, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-07-23 22:30:30,487 INFO L414 AbstractCegarLoop]: === Iteration 8 === [__U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___true_unreach_call_false_termination_c__calculate_outputErr0AssertViolationERROR_FUNCTION]=== [2018-07-23 22:30:30,488 INFO L82 PathProgramCache]: Analyzing trace with hash 1859624637, now seen corresponding path program 1 times [2018-07-23 22:30:30,488 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-07-23 22:30:30,489 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-23 22:30:30,489 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-23 22:30:30,489 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-23 22:30:30,489 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-07-23 22:30:30,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 22:30:30,994 WARN L169 SmtUtils]: Spent 115.00 ms on a formula simplification that was a NOOP. DAG size: 13 [2018-07-23 22:30:31,810 INFO L134 CoverageAnalysis]: Checked inductivity of 474 backedges. 166 proven. 303 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2018-07-23 22:30:31,810 INFO L297 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-07-23 22:30:31,810 INFO L191 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-07-23 22:30:31,811 INFO L199 CegarAbsIntRunner]: Running AI on error trace of length 388 with the following transitions: [2018-07-23 22:30:31,811 INFO L201 CegarAbsIntRunner]: [0], [7], [15], [23], [31], [39], [47], [55], [63], [71], [79], [87], [95], [103], [111], [119], [127], [135], [143], [151], [159], [167], [175], [183], [191], [199], [207], [215], [223], [231], [239], [247], [255], [263], [271], [279], [287], [295], [303], [311], [319], [327], [335], [343], [351], [359], [363], [365], [368], [376], [384], [392], [400], [408], [416], [424], [432], [440], [448], [456], [464], [472], [480], [488], [493], [497], [501], [505], [509], [513], [517], [521], [525], [529], [533], [537], [541], [545], [549], [553], [557], [561], [565], [569], [573], [577], [581], [585], [589], [593], [597], [601], [605], [609], [613], [617], [621], [625], [629], [632], [633], [637], [641], [645], [649], [653], [656], [657], [661], [664], [946], [947], [948], [952], [956], [962], [966], [968], [973], [974], [975], [977], [978] [2018-07-23 22:30:31,816 INFO L148 AbstractInterpreter]: Using domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-07-23 22:30:31,816 INFO L101 FixpointEngine]: Starting fixpoint engine with domain CompoundDomain (maxUnwinding=3, maxParallelStates=2) [2018-07-23 22:30:52,148 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-07-23 22:30:52,149 INFO L272 AbstractInterpreter]: Visited 122 different actions 238 times. Merged at 5 different actions 5 times. Never widened. Found 1 fixpoints after 1 different actions. Largest state had 24 variables. [2018-07-23 22:30:52,158 INFO L395 sIntCurrentIteration]: Generating AbsInt predicates [2018-07-23 22:31:10,529 INFO L232 lantSequenceWeakener]: Weakened 385 states. On average, predicates are now at 77.85% of their original sizes. [2018-07-23 22:31:10,529 INFO L408 sIntCurrentIteration]: Unifying AI predicates [2018-07-23 22:31:12,063 INFO L419 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-07-23 22:31:12,064 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-07-23 22:31:12,064 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [11] imperfect sequences [15] total 24 [2018-07-23 22:31:12,064 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-07-23 22:31:12,065 INFO L450 AbstractCegarLoop]: Interpolant automaton has 11 states [2018-07-23 22:31:12,065 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2018-07-23 22:31:12,065 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=81, Unknown=0, NotChecked=0, Total=110 [2018-07-23 22:31:12,065 INFO L87 Difference]: Start difference. First operand 5722 states and 7679 transitions. Second operand 11 states. [2018-07-23 22:31:42,793 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. Received shutdown request... [2018-07-23 22:31:46,182 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2018-07-23 22:31:46,182 WARN L540 AbstractCegarLoop]: Verification canceled [2018-07-23 22:31:46,188 WARN L202 ceAbstractionStarter]: Timeout [2018-07-23 22:31:46,188 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.07 10:31:46 BoogieIcfgContainer [2018-07-23 22:31:46,188 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-07-23 22:31:46,189 INFO L168 Benchmark]: Toolchain (without parser) took 239099.71 ms. Allocated memory was 1.5 GB in the beginning and 4.2 GB in the end (delta: 2.7 GB). Free memory was 1.4 GB in the beginning and 1.9 GB in the end (delta: -498.2 MB). Peak memory consumption was 2.2 GB. Max. memory is 7.1 GB. [2018-07-23 22:31:46,191 INFO L168 Benchmark]: CDTParser took 0.22 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. [2018-07-23 22:31:46,191 INFO L168 Benchmark]: CACSL2BoogieTranslator took 812.96 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.4 GB in the end (delta: 52.8 MB). Peak memory consumption was 52.8 MB. Max. memory is 7.1 GB. [2018-07-23 22:31:46,192 INFO L168 Benchmark]: Boogie Procedure Inliner took 144.46 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.4 GB in the end (delta: 10.6 MB). Peak memory consumption was 10.6 MB. Max. memory is 7.1 GB. [2018-07-23 22:31:46,193 INFO L168 Benchmark]: Boogie Preprocessor took 115.46 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.4 GB in the end (delta: 10.6 MB). Peak memory consumption was 10.6 MB. Max. memory is 7.1 GB. [2018-07-23 22:31:46,194 INFO L168 Benchmark]: RCFGBuilder took 3807.67 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 791.2 MB). Free memory was 1.4 GB in the beginning and 2.1 GB in the end (delta: -760.4 MB). Peak memory consumption was 53.6 MB. Max. memory is 7.1 GB. [2018-07-23 22:31:46,195 INFO L168 Benchmark]: TraceAbstraction took 234213.67 ms. Allocated memory was 2.3 GB in the beginning and 4.2 GB in the end (delta: 1.9 GB). Free memory was 2.1 GB in the beginning and 1.9 GB in the end (delta: 188.2 MB). Peak memory consumption was 2.1 GB. Max. memory is 7.1 GB. [2018-07-23 22:31:46,199 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 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 812.96 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.4 GB in the end (delta: 52.8 MB). Peak memory consumption was 52.8 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 144.46 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.4 GB in the end (delta: 10.6 MB). Peak memory consumption was 10.6 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 115.46 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.4 GB in the end (delta: 10.6 MB). Peak memory consumption was 10.6 MB. Max. memory is 7.1 GB. * RCFGBuilder took 3807.67 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 791.2 MB). Free memory was 1.4 GB in the beginning and 2.1 GB in the end (delta: -760.4 MB). Peak memory consumption was 53.6 MB. Max. memory is 7.1 GB. * TraceAbstraction took 234213.67 ms. Allocated memory was 2.3 GB in the beginning and 4.2 GB in the end (delta: 1.9 GB). Free memory was 2.1 GB in the beginning and 1.9 GB in the end (delta: 188.2 MB). Peak memory consumption was 2.1 GB. 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 constructing difference of abstraction (5722states) and interpolant automaton (currently 14 states, 11 states before enhancement), while ReachableStatesComputation was computing reachable states (861 states constructedinput type IntersectNwa). - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 255 locations, 1 error locations. TIMEOUT Result, 234.1s OverallTime, 8 OverallIterations, 4 TraceHistogramMax, 151.9s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 1007 SDtfs, 5087 SDslu, 1303 SDs, 0 SdLazy, 8692 SolverSat, 1562 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 105.2s Time, PredicateUnifierStatistics: 6 DeclaredPredicates, 1075 GetRequests, 918 SyntacticMatches, 96 SemanticMatches, 61 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 675 ImplicationChecksByTransitivity, 4.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=5722occurred in iteration=6, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 40.1s AbstIntTime, 3 AbstIntIterations, 3 AbstIntStrong, 0.9962011526068502 AbsIntWeakeningRatio, 0.0881488736532811 AbsIntAvgWeakeningVarsNumRemoved, 259.8560235063663 AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.7s AutomataMinimizationTime, 7 MinimizatonAttempts, 155 StatesRemovedByMinimization, 5 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 3.3s InterpolantComputationTime, 1602 NumberOfCodeBlocks, 1602 NumberOfCodeBlocksAsserted, 8 NumberOfCheckSat, 1594 ConstructedInterpolants, 0 QuantifiedInterpolants, 4825223 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 8 InterpolantComputations, 5 PerfectInterpolantSequences, 826/1313 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Written .csv to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/csv/Problem14_label03_true-unreach-call_false-termination.c_svcomp-Reach-64bit-Taipan_Default-old.epf_AutomizerCInline.xml/Csv-Benchmark-0-2018-07-23_22-31-46-214.csv Written .csv to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/csv/Problem14_label03_true-unreach-call_false-termination.c_svcomp-Reach-64bit-Taipan_Default-old.epf_AutomizerCInline.xml/Csv-TraceAbstractionBenchmarks-0-2018-07-23_22-31-46-214.csv Completed graceful shutdown