java -Xss4m -Xmx6000000000 -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 ../../../releaseScripts/default/UAutomizer-linux/csv -s ../../../trunk/examples/settings/default/taipan/svcomp-Reach-64bit-Taipan_Default.epf -i ../../../trunk/examples/svcomp/eca-rers2012/Problem02_label49_true-unreach-call_false-termination.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-71425fa [2018-07-21 08:13:32,200 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-07-21 08:13:32,203 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-07-21 08:13:32,219 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-07-21 08:13:32,220 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-07-21 08:13:32,221 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-07-21 08:13:32,225 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-07-21 08:13:32,227 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-07-21 08:13:32,229 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-07-21 08:13:32,232 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-07-21 08:13:32,233 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-07-21 08:13:32,233 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-07-21 08:13:32,234 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-07-21 08:13:32,239 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-07-21 08:13:32,241 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-07-21 08:13:32,241 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-07-21 08:13:32,254 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-07-21 08:13:32,256 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-07-21 08:13:32,258 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-07-21 08:13:32,260 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-07-21 08:13:32,261 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-07-21 08:13:32,265 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-07-21 08:13:32,268 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-07-21 08:13:32,268 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-07-21 08:13:32,269 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-07-21 08:13:32,273 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-07-21 08:13:32,274 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-07-21 08:13:32,275 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-07-21 08:13:32,281 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-07-21 08:13:32,282 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-07-21 08:13:32,283 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-07-21 08:13:32,283 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-07-21 08:13:32,284 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-07-21 08:13:32,286 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-07-21 08:13:32,287 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-07-21 08:13:32,288 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-07-21 08:13:32,288 INFO L98 SettingsManager]: Beginning loading settings from /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/taipan/svcomp-Reach-64bit-Taipan_Default.epf [2018-07-21 08:13:32,319 INFO L110 SettingsManager]: Loading preferences was successful [2018-07-21 08:13:32,319 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-07-21 08:13:32,320 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-07-21 08:13:32,320 INFO L133 SettingsManager]: * User list type=DISABLED [2018-07-21 08:13:32,320 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-07-21 08:13:32,321 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-07-21 08:13:32,325 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-07-21 08:13:32,325 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-07-21 08:13:32,325 INFO L133 SettingsManager]: * Log string format=TERM [2018-07-21 08:13:32,325 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-07-21 08:13:32,325 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-07-21 08:13:32,326 INFO L133 SettingsManager]: * Interval Domain=false [2018-07-21 08:13:32,327 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-07-21 08:13:32,327 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-07-21 08:13:32,327 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-07-21 08:13:32,327 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-07-21 08:13:32,327 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-07-21 08:13:32,327 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-07-21 08:13:32,329 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-07-21 08:13:32,329 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-07-21 08:13:32,329 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-07-21 08:13:32,329 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-07-21 08:13:32,330 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-07-21 08:13:32,330 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-07-21 08:13:32,330 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-07-21 08:13:32,330 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-07-21 08:13:32,330 INFO L133 SettingsManager]: * Interpolant automaton=TWOTRACK [2018-07-21 08:13:32,331 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-07-21 08:13:32,331 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-07-21 08:13:32,331 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-07-21 08:13:32,331 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-07-21 08:13:32,331 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-07-21 08:13:32,331 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-07-21 08:13:32,332 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-07-21 08:13:32,332 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-07-21 08:13:32,392 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-07-21 08:13:32,411 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-07-21 08:13:32,417 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-07-21 08:13:32,420 INFO L271 PluginConnector]: Initializing CDTParser... [2018-07-21 08:13:32,420 INFO L276 PluginConnector]: CDTParser initialized [2018-07-21 08:13:32,421 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem02_label49_true-unreach-call_false-termination.c [2018-07-21 08:13:32,839 INFO L220 CDTParser]: Created temporary CDT project at /storage/ultimate/releaseScripts/default/UAutomizer-linux/data/56bb031de/f2080560bb7a477d82db0cd4838f28e2/FLAG747fc2ad3 [2018-07-21 08:13:33,112 INFO L276 CDTParser]: Found 1 translation units. [2018-07-21 08:13:33,113 INFO L158 CDTParser]: Scanning /storage/ultimate/trunk/examples/svcomp/eca-rers2012/Problem02_label49_true-unreach-call_false-termination.c [2018-07-21 08:13:33,148 INFO L324 CDTParser]: About to delete temporary CDT project at /storage/ultimate/releaseScripts/default/UAutomizer-linux/data/56bb031de/f2080560bb7a477d82db0cd4838f28e2/FLAG747fc2ad3 [2018-07-21 08:13:33,183 INFO L332 CDTParser]: Successfully deleted /storage/ultimate/releaseScripts/default/UAutomizer-linux/data/56bb031de/f2080560bb7a477d82db0cd4838f28e2 [2018-07-21 08:13:33,196 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-07-21 08:13:33,203 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-07-21 08:13:33,205 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-07-21 08:13:33,205 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-07-21 08:13:33,214 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-07-21 08:13:33,216 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.07 08:13:33" (1/1) ... [2018-07-21 08:13:33,219 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@54cae29 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 08:13:33, skipping insertion in model container [2018-07-21 08:13:33,220 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.07 08:13:33" (1/1) ... [2018-07-21 08:13:33,477 INFO L179 PRDispatcher]: Starting pre-run dispatcher in SV-COMP mode [2018-07-21 08:13:33,751 INFO L175 PostProcessor]: Settings: Checked method=main [2018-07-21 08:13:33,769 INFO L422 MainDispatcher]: Starting main dispatcher in SV-COMP mode [2018-07-21 08:13:33,882 INFO L175 PostProcessor]: Settings: Checked method=main [2018-07-21 08:13:33,925 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 08:13:33 WrapperNode [2018-07-21 08:13:33,925 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-07-21 08:13:33,926 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-07-21 08:13:33,926 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-07-21 08:13:33,927 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-07-21 08:13:33,939 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 08:13:33" (1/1) ... [2018-07-21 08:13:33,963 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 08:13:33" (1/1) ... [2018-07-21 08:13:34,033 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-07-21 08:13:34,034 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-07-21 08:13:34,034 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-07-21 08:13:34,034 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-07-21 08:13:34,046 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 08:13:33" (1/1) ... [2018-07-21 08:13:34,046 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 08:13:33" (1/1) ... [2018-07-21 08:13:34,065 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 08:13:33" (1/1) ... [2018-07-21 08:13:34,065 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 08:13:33" (1/1) ... [2018-07-21 08:13:34,108 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 08:13:33" (1/1) ... [2018-07-21 08:13:34,128 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 08:13:33" (1/1) ... [2018-07-21 08:13:34,132 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 08:13:33" (1/1) ... [2018-07-21 08:13:34,138 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-07-21 08:13:34,139 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-07-21 08:13:34,139 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-07-21 08:13:34,140 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-07-21 08:13:34,141 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 08:13:33" (1/1) ... No working directory specified, using /storage/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 [2018-07-21 08:13:34,392 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-07-21 08:13:34,392 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-07-21 08:13:34,392 INFO L130 BoogieDeclarations]: Found specification of procedure __U_MULTI_f_storage_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___true_unreach_call_false_termination_c__calculate_output [2018-07-21 08:13:34,393 INFO L138 BoogieDeclarations]: Found implementation of procedure __U_MULTI_f_storage_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___true_unreach_call_false_termination_c__calculate_output [2018-07-21 08:13:34,393 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-07-21 08:13:34,393 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-07-21 08:13:34,394 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-07-21 08:13:34,394 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-07-21 08:13:38,072 INFO L261 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-07-21 08:13:38,073 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.07 08:13:38 BoogieIcfgContainer [2018-07-21 08:13:38,073 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-07-21 08:13:38,074 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-07-21 08:13:38,075 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-07-21 08:13:38,078 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-07-21 08:13:38,079 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.07 08:13:33" (1/3) ... [2018-07-21 08:13:38,080 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@267668fb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.07 08:13:38, skipping insertion in model container [2018-07-21 08:13:38,080 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 08:13:33" (2/3) ... [2018-07-21 08:13:38,080 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@267668fb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.07 08:13:38, skipping insertion in model container [2018-07-21 08:13:38,081 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.07 08:13:38" (3/3) ... [2018-07-21 08:13:38,083 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem02_label49_true-unreach-call_false-termination.c [2018-07-21 08:13:38,096 INFO L132 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-07-21 08:13:38,115 INFO L144 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-07-21 08:13:38,190 INFO L128 ementStrategyFactory]: Using default assertion order modulation [2018-07-21 08:13:38,191 INFO L373 AbstractCegarLoop]: Interprodecural is true [2018-07-21 08:13:38,192 INFO L374 AbstractCegarLoop]: Hoare is true [2018-07-21 08:13:38,192 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-07-21 08:13:38,192 INFO L376 AbstractCegarLoop]: Backedges is TWOTRACK [2018-07-21 08:13:38,192 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-07-21 08:13:38,192 INFO L378 AbstractCegarLoop]: Difference is false [2018-07-21 08:13:38,192 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-07-21 08:13:38,193 INFO L384 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-07-21 08:13:38,242 INFO L276 IsEmpty]: Start isEmpty. Operand 237 states. [2018-07-21 08:13:38,266 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2018-07-21 08:13:38,266 INFO L350 BasicCegarLoop]: Found error trace [2018-07-21 08:13:38,267 INFO L358 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-07-21 08:13:38,268 INFO L414 AbstractCegarLoop]: === Iteration 1 === [__U_MULTI_f_storage_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___true_unreach_call_false_termination_c__calculate_outputErr0AssertViolationERROR_FUNCTION]=== [2018-07-21 08:13:38,274 INFO L82 PathProgramCache]: Analyzing trace with hash -1826364152, now seen corresponding path program 1 times [2018-07-21 08:13:38,277 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-07-21 08:13:38,339 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-21 08:13:38,339 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-21 08:13:38,339 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-21 08:13:38,340 INFO L282 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-07-21 08:13:38,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-21 08:13:38,893 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-21 08:13:38,896 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-21 08:13:38,896 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-07-21 08:13:38,897 INFO L254 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-07-21 08:13:38,901 INFO L450 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-07-21 08:13:38,917 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-07-21 08:13:38,918 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-07-21 08:13:38,921 INFO L87 Difference]: Start difference. First operand 237 states. Second operand 3 states. [2018-07-21 08:13:40,499 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-21 08:13:40,499 INFO L93 Difference]: Finished difference Result 627 states and 1072 transitions. [2018-07-21 08:13:40,501 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-07-21 08:13:40,502 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 132 [2018-07-21 08:13:40,504 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-21 08:13:40,528 INFO L225 Difference]: With dead ends: 627 [2018-07-21 08:13:40,529 INFO L226 Difference]: Without dead ends: 388 [2018-07-21 08:13:40,535 INFO L578 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 [2018-07-21 08:13:40,551 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 388 states. [2018-07-21 08:13:40,607 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 388 to 383. [2018-07-21 08:13:40,609 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 383 states. [2018-07-21 08:13:40,614 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 383 states to 383 states and 619 transitions. [2018-07-21 08:13:40,616 INFO L78 Accepts]: Start accepts. Automaton has 383 states and 619 transitions. Word has length 132 [2018-07-21 08:13:40,617 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-21 08:13:40,618 INFO L471 AbstractCegarLoop]: Abstraction has 383 states and 619 transitions. [2018-07-21 08:13:40,618 INFO L472 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-07-21 08:13:40,618 INFO L276 IsEmpty]: Start isEmpty. Operand 383 states and 619 transitions. [2018-07-21 08:13:40,626 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 142 [2018-07-21 08:13:40,626 INFO L350 BasicCegarLoop]: Found error trace [2018-07-21 08:13:40,626 INFO L358 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-07-21 08:13:40,627 INFO L414 AbstractCegarLoop]: === Iteration 2 === [__U_MULTI_f_storage_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___true_unreach_call_false_termination_c__calculate_outputErr0AssertViolationERROR_FUNCTION]=== [2018-07-21 08:13:40,627 INFO L82 PathProgramCache]: Analyzing trace with hash 660432277, now seen corresponding path program 1 times [2018-07-21 08:13:40,627 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-07-21 08:13:40,629 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-21 08:13:40,629 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-21 08:13:40,629 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-21 08:13:40,629 INFO L282 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-07-21 08:13:40,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-21 08:13:41,034 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-21 08:13:41,035 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-21 08:13:41,035 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-07-21 08:13:41,035 INFO L254 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-07-21 08:13:41,037 INFO L450 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-07-21 08:13:41,038 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-07-21 08:13:41,038 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2018-07-21 08:13:41,038 INFO L87 Difference]: Start difference. First operand 383 states and 619 transitions. Second operand 6 states. [2018-07-21 08:13:43,034 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-21 08:13:43,035 INFO L93 Difference]: Finished difference Result 1053 states and 1766 transitions. [2018-07-21 08:13:43,036 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-07-21 08:13:43,036 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 141 [2018-07-21 08:13:43,037 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-21 08:13:43,047 INFO L225 Difference]: With dead ends: 1053 [2018-07-21 08:13:43,047 INFO L226 Difference]: Without dead ends: 381 [2018-07-21 08:13:43,055 INFO L578 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2018-07-21 08:13:43,055 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 381 states. [2018-07-21 08:13:43,085 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 381 to 381. [2018-07-21 08:13:43,086 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 381 states. [2018-07-21 08:13:43,091 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 381 states to 381 states and 607 transitions. [2018-07-21 08:13:43,091 INFO L78 Accepts]: Start accepts. Automaton has 381 states and 607 transitions. Word has length 141 [2018-07-21 08:13:43,092 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-21 08:13:43,092 INFO L471 AbstractCegarLoop]: Abstraction has 381 states and 607 transitions. [2018-07-21 08:13:43,092 INFO L472 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-07-21 08:13:43,092 INFO L276 IsEmpty]: Start isEmpty. Operand 381 states and 607 transitions. [2018-07-21 08:13:43,096 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2018-07-21 08:13:43,097 INFO L350 BasicCegarLoop]: Found error trace [2018-07-21 08:13:43,097 INFO L358 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-07-21 08:13:43,097 INFO L414 AbstractCegarLoop]: === Iteration 3 === [__U_MULTI_f_storage_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___true_unreach_call_false_termination_c__calculate_outputErr0AssertViolationERROR_FUNCTION]=== [2018-07-21 08:13:43,098 INFO L82 PathProgramCache]: Analyzing trace with hash 715407505, now seen corresponding path program 1 times [2018-07-21 08:13:43,098 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-07-21 08:13:43,099 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-21 08:13:43,099 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-21 08:13:43,099 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-21 08:13:43,099 INFO L282 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-07-21 08:13:43,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-21 08:13:43,548 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-21 08:13:43,549 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-21 08:13:43,549 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-07-21 08:13:43,549 INFO L254 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-07-21 08:13:43,550 INFO L450 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-07-21 08:13:43,550 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-07-21 08:13:43,550 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-07-21 08:13:43,551 INFO L87 Difference]: Start difference. First operand 381 states and 607 transitions. Second operand 5 states. [2018-07-21 08:13:44,988 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-21 08:13:44,989 INFO L93 Difference]: Finished difference Result 761 states and 1228 transitions. [2018-07-21 08:13:44,990 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-07-21 08:13:44,990 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 143 [2018-07-21 08:13:44,991 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-21 08:13:44,996 INFO L225 Difference]: With dead ends: 761 [2018-07-21 08:13:44,996 INFO L226 Difference]: Without dead ends: 386 [2018-07-21 08:13:44,998 INFO L578 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2018-07-21 08:13:45,000 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 386 states. [2018-07-21 08:13:45,041 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 386 to 371. [2018-07-21 08:13:45,041 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 371 states. [2018-07-21 08:13:45,044 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 371 states to 371 states and 566 transitions. [2018-07-21 08:13:45,049 INFO L78 Accepts]: Start accepts. Automaton has 371 states and 566 transitions. Word has length 143 [2018-07-21 08:13:45,050 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-21 08:13:45,050 INFO L471 AbstractCegarLoop]: Abstraction has 371 states and 566 transitions. [2018-07-21 08:13:45,050 INFO L472 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-07-21 08:13:45,050 INFO L276 IsEmpty]: Start isEmpty. Operand 371 states and 566 transitions. [2018-07-21 08:13:45,055 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 147 [2018-07-21 08:13:45,055 INFO L350 BasicCegarLoop]: Found error trace [2018-07-21 08:13:45,055 INFO L358 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-07-21 08:13:45,056 INFO L414 AbstractCegarLoop]: === Iteration 4 === [__U_MULTI_f_storage_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___true_unreach_call_false_termination_c__calculate_outputErr0AssertViolationERROR_FUNCTION]=== [2018-07-21 08:13:45,056 INFO L82 PathProgramCache]: Analyzing trace with hash 301102433, now seen corresponding path program 1 times [2018-07-21 08:13:45,056 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-07-21 08:13:45,061 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-21 08:13:45,061 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-21 08:13:45,061 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-21 08:13:45,061 INFO L282 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-07-21 08:13:45,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-21 08:13:45,443 WARN L169 SmtUtils]: Spent 117.00 ms on a formula simplification that was a NOOP. DAG size: 14 [2018-07-21 08:13:45,541 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-21 08:13:45,541 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-21 08:13:45,541 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2018-07-21 08:13:45,541 INFO L254 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-07-21 08:13:45,542 INFO L450 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-07-21 08:13:45,542 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-07-21 08:13:45,542 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2018-07-21 08:13:45,542 INFO L87 Difference]: Start difference. First operand 371 states and 566 transitions. Second operand 7 states. [2018-07-21 08:13:48,295 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-21 08:13:48,296 INFO L93 Difference]: Finished difference Result 1319 states and 2165 transitions. [2018-07-21 08:13:48,297 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-07-21 08:13:48,297 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 146 [2018-07-21 08:13:48,298 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-21 08:13:48,306 INFO L225 Difference]: With dead ends: 1319 [2018-07-21 08:13:48,307 INFO L226 Difference]: Without dead ends: 954 [2018-07-21 08:13:48,310 INFO L578 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=28, Invalid=44, Unknown=0, NotChecked=0, Total=72 [2018-07-21 08:13:48,311 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 954 states. [2018-07-21 08:13:48,357 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 954 to 953. [2018-07-21 08:13:48,358 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 953 states. [2018-07-21 08:13:48,366 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 953 states to 953 states and 1367 transitions. [2018-07-21 08:13:48,366 INFO L78 Accepts]: Start accepts. Automaton has 953 states and 1367 transitions. Word has length 146 [2018-07-21 08:13:48,367 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-21 08:13:48,367 INFO L471 AbstractCegarLoop]: Abstraction has 953 states and 1367 transitions. [2018-07-21 08:13:48,367 INFO L472 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-07-21 08:13:48,368 INFO L276 IsEmpty]: Start isEmpty. Operand 953 states and 1367 transitions. [2018-07-21 08:13:48,374 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155 [2018-07-21 08:13:48,374 INFO L350 BasicCegarLoop]: Found error trace [2018-07-21 08:13:48,374 INFO L358 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-07-21 08:13:48,375 INFO L414 AbstractCegarLoop]: === Iteration 5 === [__U_MULTI_f_storage_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___true_unreach_call_false_termination_c__calculate_outputErr0AssertViolationERROR_FUNCTION]=== [2018-07-21 08:13:48,375 INFO L82 PathProgramCache]: Analyzing trace with hash -1237738095, now seen corresponding path program 1 times [2018-07-21 08:13:48,375 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-07-21 08:13:48,376 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-21 08:13:48,376 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-21 08:13:48,376 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-21 08:13:48,376 INFO L282 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-07-21 08:13:48,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-21 08:13:48,589 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 17 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-21 08:13:48,589 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-21 08:13:48,589 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-07-21 08:13:48,589 INFO L254 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-07-21 08:13:48,590 INFO L450 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-07-21 08:13:48,590 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-07-21 08:13:48,590 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-07-21 08:13:48,590 INFO L87 Difference]: Start difference. First operand 953 states and 1367 transitions. Second operand 6 states. [2018-07-21 08:13:50,148 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-21 08:13:50,149 INFO L93 Difference]: Finished difference Result 2503 states and 3706 transitions. [2018-07-21 08:13:50,180 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-07-21 08:13:50,180 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 154 [2018-07-21 08:13:50,181 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-21 08:13:50,194 INFO L225 Difference]: With dead ends: 2503 [2018-07-21 08:13:50,194 INFO L226 Difference]: Without dead ends: 1556 [2018-07-21 08:13:50,199 INFO L578 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2018-07-21 08:13:50,201 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1556 states. [2018-07-21 08:13:50,279 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1556 to 1527. [2018-07-21 08:13:50,279 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1527 states. [2018-07-21 08:13:50,290 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1527 states to 1527 states and 2106 transitions. [2018-07-21 08:13:50,291 INFO L78 Accepts]: Start accepts. Automaton has 1527 states and 2106 transitions. Word has length 154 [2018-07-21 08:13:50,291 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-21 08:13:50,291 INFO L471 AbstractCegarLoop]: Abstraction has 1527 states and 2106 transitions. [2018-07-21 08:13:50,291 INFO L472 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-07-21 08:13:50,291 INFO L276 IsEmpty]: Start isEmpty. Operand 1527 states and 2106 transitions. [2018-07-21 08:13:50,301 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 160 [2018-07-21 08:13:50,301 INFO L350 BasicCegarLoop]: Found error trace [2018-07-21 08:13:50,301 INFO L358 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-07-21 08:13:50,301 INFO L414 AbstractCegarLoop]: === Iteration 6 === [__U_MULTI_f_storage_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___true_unreach_call_false_termination_c__calculate_outputErr0AssertViolationERROR_FUNCTION]=== [2018-07-21 08:13:50,302 INFO L82 PathProgramCache]: Analyzing trace with hash -650421942, now seen corresponding path program 1 times [2018-07-21 08:13:50,302 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-07-21 08:13:50,303 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-21 08:13:50,303 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-21 08:13:50,303 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-21 08:13:50,303 INFO L282 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-07-21 08:13:50,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-21 08:13:50,745 WARN L169 SmtUtils]: Spent 186.00 ms on a formula simplification that was a NOOP. DAG size: 17 [2018-07-21 08:13:50,989 WARN L169 SmtUtils]: Spent 166.00 ms on a formula simplification that was a NOOP. DAG size: 15 [2018-07-21 08:13:51,061 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 24 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-21 08:13:51,061 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-21 08:13:51,062 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-07-21 08:13:51,062 INFO L254 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-07-21 08:13:51,062 INFO L450 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-07-21 08:13:51,062 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-07-21 08:13:51,063 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2018-07-21 08:13:51,063 INFO L87 Difference]: Start difference. First operand 1527 states and 2106 transitions. Second operand 5 states. [2018-07-21 08:13:52,129 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-21 08:13:52,129 INFO L93 Difference]: Finished difference Result 3195 states and 4471 transitions. [2018-07-21 08:13:52,129 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-07-21 08:13:52,129 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 159 [2018-07-21 08:13:52,130 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-21 08:13:52,140 INFO L225 Difference]: With dead ends: 3195 [2018-07-21 08:13:52,140 INFO L226 Difference]: Without dead ends: 1526 [2018-07-21 08:13:52,148 INFO L578 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 2 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2018-07-21 08:13:52,150 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1526 states. [2018-07-21 08:13:52,210 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1526 to 1526. [2018-07-21 08:13:52,210 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1526 states. [2018-07-21 08:13:52,217 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1526 states to 1526 states and 2080 transitions. [2018-07-21 08:13:52,217 INFO L78 Accepts]: Start accepts. Automaton has 1526 states and 2080 transitions. Word has length 159 [2018-07-21 08:13:52,218 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-21 08:13:52,218 INFO L471 AbstractCegarLoop]: Abstraction has 1526 states and 2080 transitions. [2018-07-21 08:13:52,218 INFO L472 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-07-21 08:13:52,218 INFO L276 IsEmpty]: Start isEmpty. Operand 1526 states and 2080 transitions. [2018-07-21 08:13:52,227 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 188 [2018-07-21 08:13:52,228 INFO L350 BasicCegarLoop]: Found error trace [2018-07-21 08:13:52,228 INFO L358 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-07-21 08:13:52,228 INFO L414 AbstractCegarLoop]: === Iteration 7 === [__U_MULTI_f_storage_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___true_unreach_call_false_termination_c__calculate_outputErr0AssertViolationERROR_FUNCTION]=== [2018-07-21 08:13:52,229 INFO L82 PathProgramCache]: Analyzing trace with hash -1374243891, now seen corresponding path program 1 times [2018-07-21 08:13:52,230 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-07-21 08:13:52,231 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-21 08:13:52,231 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-21 08:13:52,232 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-21 08:13:52,232 INFO L282 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-07-21 08:13:52,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-21 08:13:52,466 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 50 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-21 08:13:52,467 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-21 08:13:52,467 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-07-21 08:13:52,467 INFO L254 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-07-21 08:13:52,467 INFO L450 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-07-21 08:13:52,468 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-07-21 08:13:52,468 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-07-21 08:13:52,468 INFO L87 Difference]: Start difference. First operand 1526 states and 2080 transitions. Second operand 3 states. [2018-07-21 08:13:52,945 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-21 08:13:52,945 INFO L93 Difference]: Finished difference Result 3985 states and 5679 transitions. [2018-07-21 08:13:52,945 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-07-21 08:13:52,945 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 187 [2018-07-21 08:13:52,946 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-21 08:13:52,960 INFO L225 Difference]: With dead ends: 3985 [2018-07-21 08:13:52,961 INFO L226 Difference]: Without dead ends: 2465 [2018-07-21 08:13:52,968 INFO L578 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-07-21 08:13:52,971 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2465 states. [2018-07-21 08:13:53,060 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2465 to 2465. [2018-07-21 08:13:53,060 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2465 states. [2018-07-21 08:13:53,074 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2465 states to 2465 states and 3444 transitions. [2018-07-21 08:13:53,075 INFO L78 Accepts]: Start accepts. Automaton has 2465 states and 3444 transitions. Word has length 187 [2018-07-21 08:13:53,075 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-21 08:13:53,075 INFO L471 AbstractCegarLoop]: Abstraction has 2465 states and 3444 transitions. [2018-07-21 08:13:53,076 INFO L472 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-07-21 08:13:53,076 INFO L276 IsEmpty]: Start isEmpty. Operand 2465 states and 3444 transitions. [2018-07-21 08:13:53,092 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 213 [2018-07-21 08:13:53,092 INFO L350 BasicCegarLoop]: Found error trace [2018-07-21 08:13:53,092 INFO L358 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-07-21 08:13:53,092 INFO L414 AbstractCegarLoop]: === Iteration 8 === [__U_MULTI_f_storage_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___true_unreach_call_false_termination_c__calculate_outputErr0AssertViolationERROR_FUNCTION]=== [2018-07-21 08:13:53,093 INFO L82 PathProgramCache]: Analyzing trace with hash -583655355, now seen corresponding path program 1 times [2018-07-21 08:13:53,093 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-07-21 08:13:53,094 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-21 08:13:53,095 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-21 08:13:53,095 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-21 08:13:53,095 INFO L282 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-07-21 08:13:53,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-21 08:13:53,305 INFO L134 CoverageAnalysis]: Checked inductivity of 97 backedges. 95 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-21 08:13:53,305 INFO L297 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-07-21 08:13:53,305 INFO L189 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-07-21 08:13:53,306 INFO L199 CegarAbsIntRunner]: Running AI on error trace of length 213 with the following transitions: [2018-07-21 08:13:53,309 INFO L201 CegarAbsIntRunner]: [0], [1], [2], [6], [10], [14], [18], [22], [26], [30], [34], [38], [42], [53], [64], [68], [72], [76], [80], [83], [84], [88], [92], [96], [100], [104], [108], [112], [116], [120], [124], [128], [132], [136], [140], [144], [148], [152], [156], [160], [171], [175], [179], [183], [187], [191], [195], [199], [202], [205], [209], [210], [214], [218], [222], [233], [237], [241], [245], [249], [253], [257], [268], [272], [283], [287], [298], [309], [313], [317], [321], [325], [329], [333], [344], [348], [352], [356], [360], [364], [368], [372], [379], [387], [395], [403], [411], [419], [427], [435], [443], [451], [459], [467], [475], [483], [491], [499], [507], [515], [523], [531], [539], [547], [555], [563], [571], [579], [587], [595], [603], [611], [619], [627], [635], [643], [651], [659], [667], [675], [683], [691], [699], [707], [715], [723], [727], [729], [863], [867], [871], [877], [881], [883], [888], [889], [890], [892], [893] [2018-07-21 08:13:53,390 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-07-21 08:13:53,390 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-07-21 08:14:04,323 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-07-21 08:14:04,324 INFO L272 AbstractInterpreter]: Visited 63 different actions 63 times. Never merged. Never widened. Never found a fixpoint. Largest state had 38 variables. [2018-07-21 08:14:04,334 INFO L395 sIntCurrentIteration]: Generating AbsInt predicates [2018-07-21 08:14:12,891 INFO L232 lantSequenceWeakener]: Weakened 132 states. On average, predicates are now at 80.45% of their original sizes. [2018-07-21 08:14:12,892 INFO L408 sIntCurrentIteration]: Unifying AI predicates [2018-07-21 08:14:14,222 INFO L419 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-07-21 08:14:14,223 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-07-21 08:14:14,223 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [11] imperfect sequences [6] total 15 [2018-07-21 08:14:14,223 INFO L254 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-07-21 08:14:14,224 INFO L450 AbstractCegarLoop]: Interpolant automaton has 11 states [2018-07-21 08:14:14,224 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2018-07-21 08:14:14,224 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=72, Unknown=0, NotChecked=0, Total=110 [2018-07-21 08:14:14,225 INFO L87 Difference]: Start difference. First operand 2465 states and 3444 transitions. Second operand 11 states. [2018-07-21 08:14:26,606 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-21 08:14:26,607 INFO L93 Difference]: Finished difference Result 4979 states and 6976 transitions. [2018-07-21 08:14:26,607 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2018-07-21 08:14:26,607 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 212 [2018-07-21 08:14:26,607 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-21 08:14:26,619 INFO L225 Difference]: With dead ends: 4979 [2018-07-21 08:14:26,619 INFO L226 Difference]: Without dead ends: 2520 [2018-07-21 08:14:26,628 INFO L578 BasicCegarLoop]: 2 DeclaredPredicates, 216 GetRequests, 202 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=83, Invalid=157, Unknown=0, NotChecked=0, Total=240 [2018-07-21 08:14:26,630 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2520 states. [2018-07-21 08:14:26,714 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2520 to 2520. [2018-07-21 08:14:26,714 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2520 states. [2018-07-21 08:14:26,723 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2520 states to 2520 states and 3506 transitions. [2018-07-21 08:14:26,723 INFO L78 Accepts]: Start accepts. Automaton has 2520 states and 3506 transitions. Word has length 212 [2018-07-21 08:14:26,724 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-21 08:14:26,724 INFO L471 AbstractCegarLoop]: Abstraction has 2520 states and 3506 transitions. [2018-07-21 08:14:26,724 INFO L472 AbstractCegarLoop]: Interpolant automaton has 11 states. [2018-07-21 08:14:26,724 INFO L276 IsEmpty]: Start isEmpty. Operand 2520 states and 3506 transitions. [2018-07-21 08:14:26,738 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 223 [2018-07-21 08:14:26,738 INFO L350 BasicCegarLoop]: Found error trace [2018-07-21 08:14:26,738 INFO L358 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-07-21 08:14:26,739 INFO L414 AbstractCegarLoop]: === Iteration 9 === [__U_MULTI_f_storage_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___true_unreach_call_false_termination_c__calculate_outputErr0AssertViolationERROR_FUNCTION]=== [2018-07-21 08:14:26,739 INFO L82 PathProgramCache]: Analyzing trace with hash 730696614, now seen corresponding path program 1 times [2018-07-21 08:14:26,739 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-07-21 08:14:26,740 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-21 08:14:26,740 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-21 08:14:26,740 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-21 08:14:26,740 INFO L282 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-07-21 08:14:26,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-21 08:14:27,184 INFO L134 CoverageAnalysis]: Checked inductivity of 124 backedges. 92 proven. 24 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2018-07-21 08:14:27,185 INFO L297 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-07-21 08:14:27,185 INFO L189 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-07-21 08:14:27,186 INFO L199 CegarAbsIntRunner]: Running AI on error trace of length 223 with the following transitions: [2018-07-21 08:14:27,186 INFO L201 CegarAbsIntRunner]: [0], [1], [2], [6], [9], [10], [14], [18], [22], [26], [30], [34], [38], [42], [53], [64], [68], [72], [76], [80], [83], [84], [88], [92], [96], [100], [104], [108], [112], [116], [120], [124], [128], [132], [136], [140], [144], [148], [152], [156], [160], [171], [175], [179], [183], [187], [191], [195], [199], [202], [205], [209], [210], [214], [218], [222], [233], [237], [241], [245], [249], [253], [257], [268], [272], [283], [287], [298], [309], [313], [317], [321], [325], [329], [333], [344], [348], [352], [356], [360], [364], [368], [372], [379], [387], [395], [403], [411], [419], [427], [435], [443], [451], [459], [467], [475], [483], [491], [499], [507], [515], [523], [531], [539], [547], [555], [563], [571], [579], [587], [595], [603], [611], [619], [627], [635], [643], [651], [659], [667], [675], [683], [691], [699], [707], [715], [723], [727], [729], [863], [867], [871], [877], [881], [883], [888], [889], [890], [892], [893] [2018-07-21 08:14:27,198 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-07-21 08:14:27,198 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-07-21 08:15:17,093 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-07-21 08:15:17,093 INFO L272 AbstractInterpreter]: Visited 137 different actions 200 times. Merged at 5 different actions 7 times. Never widened. Found 1 fixpoints after 1 different actions. Largest state had 38 variables. [2018-07-21 08:15:17,102 INFO L395 sIntCurrentIteration]: Generating AbsInt predicates [2018-07-21 08:15:29,682 INFO L232 lantSequenceWeakener]: Weakened 218 states. On average, predicates are now at 81.12% of their original sizes. [2018-07-21 08:15:29,682 INFO L408 sIntCurrentIteration]: Unifying AI predicates [2018-07-21 08:15:45,918 INFO L419 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-07-21 08:15:45,919 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-07-21 08:15:45,919 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [22] imperfect sequences [6] total 26 [2018-07-21 08:15:45,919 INFO L254 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-07-21 08:15:45,919 INFO L450 AbstractCegarLoop]: Interpolant automaton has 22 states [2018-07-21 08:15:45,919 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2018-07-21 08:15:45,920 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=130, Invalid=332, Unknown=0, NotChecked=0, Total=462 [2018-07-21 08:15:45,920 INFO L87 Difference]: Start difference. First operand 2520 states and 3506 transitions. Second operand 22 states. [2018-07-21 08:16:22,996 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-21 08:16:22,996 INFO L93 Difference]: Finished difference Result 5287 states and 7355 transitions. [2018-07-21 08:16:22,996 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2018-07-21 08:16:22,996 INFO L78 Accepts]: Start accepts. Automaton has 22 states. Word has length 222 [2018-07-21 08:16:22,997 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-21 08:16:23,007 INFO L225 Difference]: With dead ends: 5287 [2018-07-21 08:16:23,007 INFO L226 Difference]: Without dead ends: 2828 [2018-07-21 08:16:23,014 INFO L578 BasicCegarLoop]: 2 DeclaredPredicates, 250 GetRequests, 162 SyntacticMatches, 39 SemanticMatches, 49 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 810 ImplicationChecksByTransitivity, 20.4s TimeCoverageRelationStatistics Valid=611, Invalid=1939, Unknown=0, NotChecked=0, Total=2550 [2018-07-21 08:16:23,016 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2828 states. [2018-07-21 08:16:23,095 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2828 to 2816. [2018-07-21 08:16:23,095 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2816 states. [2018-07-21 08:16:23,104 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2816 states to 2816 states and 3820 transitions. [2018-07-21 08:16:23,104 INFO L78 Accepts]: Start accepts. Automaton has 2816 states and 3820 transitions. Word has length 222 [2018-07-21 08:16:23,104 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-21 08:16:23,105 INFO L471 AbstractCegarLoop]: Abstraction has 2816 states and 3820 transitions. [2018-07-21 08:16:23,105 INFO L472 AbstractCegarLoop]: Interpolant automaton has 22 states. [2018-07-21 08:16:23,105 INFO L276 IsEmpty]: Start isEmpty. Operand 2816 states and 3820 transitions. [2018-07-21 08:16:23,119 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 239 [2018-07-21 08:16:23,119 INFO L350 BasicCegarLoop]: Found error trace [2018-07-21 08:16:23,119 INFO L358 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-07-21 08:16:23,119 INFO L414 AbstractCegarLoop]: === Iteration 10 === [__U_MULTI_f_storage_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___true_unreach_call_false_termination_c__calculate_outputErr0AssertViolationERROR_FUNCTION]=== [2018-07-21 08:16:23,120 INFO L82 PathProgramCache]: Analyzing trace with hash -223499722, now seen corresponding path program 1 times [2018-07-21 08:16:23,120 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-07-21 08:16:23,120 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-21 08:16:23,121 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-21 08:16:23,121 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-21 08:16:23,121 INFO L282 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-07-21 08:16:23,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-21 08:16:23,299 INFO L134 CoverageAnalysis]: Checked inductivity of 160 backedges. 101 proven. 54 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2018-07-21 08:16:23,300 INFO L297 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-07-21 08:16:23,300 INFO L189 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-07-21 08:16:23,300 INFO L199 CegarAbsIntRunner]: Running AI on error trace of length 239 with the following transitions: [2018-07-21 08:16:23,300 INFO L201 CegarAbsIntRunner]: [0], [1], [2], [6], [10], [14], [18], [22], [25], [26], [30], [34], [38], [42], [53], [64], [68], [72], [76], [80], [84], [88], [92], [96], [100], [104], [108], [112], [116], [120], [124], [128], [131], [132], [136], [140], [144], [148], [152], [156], [160], [171], [175], [179], [183], [187], [191], [195], [199], [202], [205], [209], [210], [214], [218], [222], [233], [237], [241], [245], [249], [253], [257], [268], [272], [283], [287], [298], [309], [313], [317], [321], [325], [329], [333], [344], [348], [352], [356], [360], [364], [368], [372], [379], [387], [395], [403], [411], [419], [427], [435], [443], [451], [459], [467], [475], [483], [491], [499], [507], [515], [523], [531], [539], [547], [555], [563], [571], [579], [587], [595], [603], [611], [619], [627], [635], [643], [651], [659], [667], [675], [683], [691], [699], [707], [715], [723], [727], [729], [863], [867], [871], [877], [881], [883], [888], [889], [890], [892], [893] [2018-07-21 08:16:23,306 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-07-21 08:16:23,306 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) Received shutdown request... [2018-07-21 08:17:40,845 WARN L571 FixpointEngine]: Received timeout, aborting fixpoint engine [2018-07-21 08:17:40,846 WARN L158 AbstractInterpreter]: Abstract interpretation run out of time [2018-07-21 08:17:40,847 INFO L419 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: AbsInt can only provide a hoare triple checker if it generated fixpoints [2018-07-21 08:17:40,847 INFO L297 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-07-21 08:17:40,847 INFO L189 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-07-21 08:17:40,857 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-21 08:17:40,858 INFO L282 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-07-21 08:17:40,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-21 08:17:41,006 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-07-21 08:17:41,035 INFO L177 TraceCheckSpWp]: Timeout while computing interpolants [2018-07-21 08:17:41,236 WARN L512 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-07-21 08:17:41,237 WARN L540 AbstractCegarLoop]: Verification canceled [2018-07-21 08:17:41,241 WARN L202 ceAbstractionStarter]: Timeout [2018-07-21 08:17:41,241 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.07 08:17:41 BoogieIcfgContainer [2018-07-21 08:17:41,242 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-07-21 08:17:41,243 INFO L168 Benchmark]: Toolchain (without parser) took 248046.12 ms. Allocated memory was 308.8 MB in the beginning and 2.3 GB in the end (delta: 2.0 GB). Free memory was 252.6 MB in the beginning and 905.6 MB in the end (delta: -653.0 MB). Peak memory consumption was 1.4 GB. Max. memory is 5.3 GB. [2018-07-21 08:17:41,246 INFO L168 Benchmark]: CDTParser took 0.22 ms. Allocated memory is still 308.8 MB. Free memory is still 273.2 MB. There was no memory consumed. Max. memory is 5.3 GB. [2018-07-21 08:17:41,246 INFO L168 Benchmark]: CACSL2BoogieTranslator took 721.07 ms. Allocated memory is still 308.8 MB. Free memory was 252.6 MB in the beginning and 220.0 MB in the end (delta: 32.6 MB). Peak memory consumption was 32.6 MB. Max. memory is 5.3 GB. [2018-07-21 08:17:41,246 INFO L168 Benchmark]: Boogie Procedure Inliner took 107.36 ms. Allocated memory is still 308.8 MB. Free memory was 220.0 MB in the beginning and 214.0 MB in the end (delta: 6.0 MB). Peak memory consumption was 6.0 MB. Max. memory is 5.3 GB. [2018-07-21 08:17:41,247 INFO L168 Benchmark]: Boogie Preprocessor took 104.93 ms. Allocated memory is still 308.8 MB. Free memory was 214.0 MB in the beginning and 210.0 MB in the end (delta: 4.0 MB). Peak memory consumption was 4.0 MB. Max. memory is 5.3 GB. [2018-07-21 08:17:41,247 INFO L168 Benchmark]: RCFGBuilder took 3934.14 ms. Allocated memory was 308.8 MB in the beginning and 482.9 MB in the end (delta: 174.1 MB). Free memory was 210.0 MB in the beginning and 341.3 MB in the end (delta: -131.3 MB). Peak memory consumption was 59.0 MB. Max. memory is 5.3 GB. [2018-07-21 08:17:41,248 INFO L168 Benchmark]: TraceAbstraction took 243167.19 ms. Allocated memory was 482.9 MB in the beginning and 2.3 GB in the end (delta: 1.8 GB). Free memory was 341.3 MB in the beginning and 905.6 MB in the end (delta: -564.3 MB). Peak memory consumption was 1.3 GB. Max. memory is 5.3 GB. [2018-07-21 08:17:41,251 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 308.8 MB. Free memory is still 273.2 MB. There was no memory consumed. Max. memory is 5.3 GB. * CACSL2BoogieTranslator took 721.07 ms. Allocated memory is still 308.8 MB. Free memory was 252.6 MB in the beginning and 220.0 MB in the end (delta: 32.6 MB). Peak memory consumption was 32.6 MB. Max. memory is 5.3 GB. * Boogie Procedure Inliner took 107.36 ms. Allocated memory is still 308.8 MB. Free memory was 220.0 MB in the beginning and 214.0 MB in the end (delta: 6.0 MB). Peak memory consumption was 6.0 MB. Max. memory is 5.3 GB. * Boogie Preprocessor took 104.93 ms. Allocated memory is still 308.8 MB. Free memory was 214.0 MB in the beginning and 210.0 MB in the end (delta: 4.0 MB). Peak memory consumption was 4.0 MB. Max. memory is 5.3 GB. * RCFGBuilder took 3934.14 ms. Allocated memory was 308.8 MB in the beginning and 482.9 MB in the end (delta: 174.1 MB). Free memory was 210.0 MB in the beginning and 341.3 MB in the end (delta: -131.3 MB). Peak memory consumption was 59.0 MB. Max. memory is 5.3 GB. * TraceAbstraction took 243167.19 ms. Allocated memory was 482.9 MB in the beginning and 2.3 GB in the end (delta: 1.8 GB). Free memory was 341.3 MB in the beginning and 905.6 MB in the end (delta: -564.3 MB). Peak memory consumption was 1.3 GB. Max. memory is 5.3 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResultAtElement [Line: 547]: Timeout (TraceAbstraction) Unable to prove that call of __VERIFIER_error() unreachable (line 547). Cancelled while BasicCegarLoop was analyzing trace of length 239 with TraceHistMax 4, while TraceCheckSpWp was constructing forward predicates, while PredicateComparison was comparing new predicate (quantifier-free) to 10 known predicates. - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 237 locations, 1 error locations. TIMEOUT Result, 243.0s OverallTime, 10 OverallIterations, 4 TraceHistogramMax, 60.5s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 1315 SDtfs, 6341 SDslu, 1242 SDs, 0 SdLazy, 6831 SolverSat, 1394 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 25.1s Time, PredicateUnifierStatistics: 4 DeclaredPredicates, 520 GetRequests, 385 SyntacticMatches, 45 SemanticMatches, 90 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 835 ImplicationChecksByTransitivity, 23.9s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=2816occurred in iteration=9, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 138.4s AbstIntTime, 3 AbstIntIterations, 2 AbstIntStrong, 0.9957144644644641 AbsIntWeakeningRatio, 0.18055555555555555 AbsIntAvgWeakeningVarsNumRemoved, 146.02777777777777 AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.6s AutomataMinimizationTime, 9 MinimizatonAttempts, 62 StatesRemovedByMinimization, 5 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.1s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 2.9s InterpolantComputationTime, 1496 NumberOfCodeBlocks, 1496 NumberOfCodeBlocksAsserted, 9 NumberOfCheckSat, 1487 ConstructedInterpolants, 0 QuantifiedInterpolants, 1208136 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 9 InterpolantComputations, 7 PerfectInterpolantSequences, 311/337 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/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/Problem02_label49_true-unreach-call_false-termination.c_svcomp-Reach-64bit-Taipan_Default.epf_AutomizerCInline.xml/Csv-Benchmark-0-2018-07-21_08-17-41-265.csv Written .csv to /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/Problem02_label49_true-unreach-call_false-termination.c_svcomp-Reach-64bit-Taipan_Default.epf_AutomizerCInline.xml/Csv-TraceAbstractionBenchmarks-0-2018-07-21_08-17-41-265.csv Completed graceful shutdown