java -Xmx8000000000 -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data --generate-csv --csv-dir csv -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -s ../../../trunk/examples/settings/ai/taipanbench/svcomp-Reach-64bit-ToothlessTaipan_Default-OldIcfg.epf -i ../../../trunk/examples/svcomp/eca-rers2012/Problem14_label06_true-unreach-call_false-termination.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-ddc4263 [2018-08-08 06:10:00,158 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-08-08 06:10:00,160 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-08-08 06:10:00,172 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-08-08 06:10:00,172 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-08-08 06:10:00,173 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-08-08 06:10:00,174 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-08-08 06:10:00,176 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-08-08 06:10:00,178 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-08-08 06:10:00,179 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-08-08 06:10:00,180 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-08-08 06:10:00,180 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-08-08 06:10:00,181 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-08-08 06:10:00,182 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-08-08 06:10:00,183 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-08-08 06:10:00,184 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-08-08 06:10:00,184 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-08-08 06:10:00,186 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-08-08 06:10:00,188 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-08-08 06:10:00,189 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-08-08 06:10:00,191 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-08-08 06:10:00,192 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-08-08 06:10:00,194 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-08-08 06:10:00,194 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-08-08 06:10:00,194 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-08-08 06:10:00,195 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-08-08 06:10:00,196 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-08-08 06:10:00,197 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-08-08 06:10:00,198 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-08-08 06:10:00,199 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-08-08 06:10:00,199 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-08-08 06:10:00,199 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-08-08 06:10:00,200 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-08-08 06:10:00,200 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-08-08 06:10:00,201 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-08-08 06:10:00,201 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-08-08 06:10:00,202 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/ai/taipanbench/svcomp-Reach-64bit-ToothlessTaipan_Default-OldIcfg.epf [2018-08-08 06:10:00,217 INFO L110 SettingsManager]: Loading preferences was successful [2018-08-08 06:10:00,217 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-08-08 06:10:00,218 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-08-08 06:10:00,218 INFO L133 SettingsManager]: * User list type=DISABLED [2018-08-08 06:10:00,218 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-08-08 06:10:00,219 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-08-08 06:10:00,219 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-08-08 06:10:00,219 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-08-08 06:10:00,219 INFO L133 SettingsManager]: * Log string format=TERM [2018-08-08 06:10:00,220 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-08-08 06:10:00,220 INFO L133 SettingsManager]: * Interval Domain=false [2018-08-08 06:10:00,220 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-08-08 06:10:00,221 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-08-08 06:10:00,221 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-08-08 06:10:00,221 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-08-08 06:10:00,221 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-08-08 06:10:00,221 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-08-08 06:10:00,222 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-08-08 06:10:00,222 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-08-08 06:10:00,222 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-08-08 06:10:00,222 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-08-08 06:10:00,222 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-08-08 06:10:00,223 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-08-08 06:10:00,223 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-08-08 06:10:00,223 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-08-08 06:10:00,223 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-08-08 06:10:00,223 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-08-08 06:10:00,224 INFO L133 SettingsManager]: * Trace refinement strategy=TOOTHLESS_TAIPAN [2018-08-08 06:10:00,224 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-08-08 06:10:00,224 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-08-08 06:10:00,224 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-08-08 06:10:00,224 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-08-08 06:10:00,225 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-08-08 06:10:00,268 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-08-08 06:10:00,281 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-08-08 06:10:00,284 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-08-08 06:10:00,286 INFO L271 PluginConnector]: Initializing CDTParser... [2018-08-08 06:10:00,286 INFO L276 PluginConnector]: CDTParser initialized [2018-08-08 06:10:00,287 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem14_label06_true-unreach-call_false-termination.c [2018-08-08 06:10:00,633 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5aa5cb35a/e34d2ccabf6f459ab06cb1a93e860876/FLAGe9781a908 [2018-08-08 06:10:00,928 INFO L276 CDTParser]: Found 1 translation units. [2018-08-08 06:10:00,929 INFO L158 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem14_label06_true-unreach-call_false-termination.c [2018-08-08 06:10:00,950 INFO L324 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5aa5cb35a/e34d2ccabf6f459ab06cb1a93e860876/FLAGe9781a908 [2018-08-08 06:10:00,971 INFO L332 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5aa5cb35a/e34d2ccabf6f459ab06cb1a93e860876 [2018-08-08 06:10:00,982 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-08-08 06:10:00,984 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-08-08 06:10:00,985 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-08-08 06:10:00,988 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-08-08 06:10:00,994 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-08-08 06:10:00,995 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.08 06:10:00" (1/1) ... [2018-08-08 06:10:00,998 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4c9fdb97 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.08 06:10:00, skipping insertion in model container [2018-08-08 06:10:00,999 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.08 06:10:00" (1/1) ... [2018-08-08 06:10:01,224 INFO L179 PRDispatcher]: Starting pre-run dispatcher in SV-COMP mode [2018-08-08 06:10:01,589 INFO L175 PostProcessor]: Settings: Checked method=main [2018-08-08 06:10:01,604 INFO L422 MainDispatcher]: Starting main dispatcher in SV-COMP mode [2018-08-08 06:10:01,728 INFO L175 PostProcessor]: Settings: Checked method=main [2018-08-08 06:10:01,777 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.08 06:10:01 WrapperNode [2018-08-08 06:10:01,778 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-08-08 06:10:01,779 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-08-08 06:10:01,779 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-08-08 06:10:01,779 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-08-08 06:10:01,790 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.08 06:10:01" (1/1) ... [2018-08-08 06:10:01,824 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.08 06:10:01" (1/1) ... [2018-08-08 06:10:01,922 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-08-08 06:10:01,922 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-08-08 06:10:01,922 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-08-08 06:10:01,923 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-08-08 06:10:01,934 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.08 06:10:01" (1/1) ... [2018-08-08 06:10:01,935 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.08 06:10:01" (1/1) ... [2018-08-08 06:10:01,947 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.08 06:10:01" (1/1) ... [2018-08-08 06:10:01,948 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.08 06:10:01" (1/1) ... [2018-08-08 06:10:02,134 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.08 06:10:01" (1/1) ... [2018-08-08 06:10:02,149 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.08 06:10:01" (1/1) ... [2018-08-08 06:10:02,159 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.08 06:10:01" (1/1) ... [2018-08-08 06:10:02,169 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-08-08 06:10:02,170 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-08-08 06:10:02,170 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-08-08 06:10:02,170 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-08-08 06:10:02,171 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.08 06:10:01" (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 [2018-08-08 06:10:02,247 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 [2018-08-08 06:10:02,247 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 [2018-08-08 06:10:02,248 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-08-08 06:10:02,248 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-08-08 06:10:02,248 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-08-08 06:10:02,248 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-08-08 06:10:02,248 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-08-08 06:10:02,249 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-08-08 06:10:06,255 INFO L273 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-08-08 06:10:06,255 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.08 06:10:06 BoogieIcfgContainer [2018-08-08 06:10:06,256 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-08-08 06:10:06,257 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-08-08 06:10:06,257 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-08-08 06:10:06,261 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-08-08 06:10:06,261 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 08.08 06:10:00" (1/3) ... [2018-08-08 06:10:06,263 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5310835 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.08 06:10:06, skipping insertion in model container [2018-08-08 06:10:06,263 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.08 06:10:01" (2/3) ... [2018-08-08 06:10:06,264 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5310835 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.08 06:10:06, skipping insertion in model container [2018-08-08 06:10:06,264 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.08 06:10:06" (3/3) ... [2018-08-08 06:10:06,266 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem14_label06_true-unreach-call_false-termination.c [2018-08-08 06:10:06,283 INFO L133 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-08-08 06:10:06,296 INFO L145 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-08-08 06:10:06,356 INFO L129 ementStrategyFactory]: Using default assertion order modulation [2018-08-08 06:10:06,357 INFO L381 AbstractCegarLoop]: Interprodecural is true [2018-08-08 06:10:06,357 INFO L382 AbstractCegarLoop]: Hoare is true [2018-08-08 06:10:06,357 INFO L383 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-08-08 06:10:06,358 INFO L384 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-08-08 06:10:06,358 INFO L385 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-08-08 06:10:06,358 INFO L386 AbstractCegarLoop]: Difference is false [2018-08-08 06:10:06,358 INFO L387 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-08-08 06:10:06,358 INFO L392 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-08-08 06:10:06,392 INFO L276 IsEmpty]: Start isEmpty. Operand 255 states. [2018-08-08 06:10:06,415 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2018-08-08 06:10:06,415 INFO L368 BasicCegarLoop]: Found error trace [2018-08-08 06:10:06,417 INFO L376 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] [2018-08-08 06:10:06,418 INFO L423 AbstractCegarLoop]: === Iteration 1 === [__U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___true_unreach_call_false_termination_c__calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-08-08 06:10:06,424 INFO L82 PathProgramCache]: Analyzing trace with hash -1833035364, now seen corresponding path program 1 times [2018-08-08 06:10:06,427 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-08-08 06:10:06,429 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 69 with the following transitions: [2018-08-08 06:10:06,432 INFO L202 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], [367], [375], [383], [391], [399], [407], [415], [423], [431], [439], [443], [445], [947], [948], [952], [956], [962], [966], [973], [974], [975], [977] [2018-08-08 06:10:06,499 INFO L148 AbstractInterpreter]: Using domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-08-08 06:10:06,499 INFO L101 FixpointEngine]: Starting fixpoint engine with domain CompoundDomain (maxUnwinding=3, maxParallelStates=2) [2018-08-08 06:10:08,625 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-08-08 06:10:08,626 INFO L272 AbstractInterpreter]: Visited 67 different actions 67 times. Never merged. Never widened. Never found a fixpoint. Largest state had 23 variables. [2018-08-08 06:10:08,657 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-08-08 06:10:09,682 INFO L232 lantSequenceWeakener]: Weakened 66 states. On average, predicates are now at 80.83% of their original sizes. [2018-08-08 06:10:09,682 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-08-08 06:10:09,972 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-08-08 06:10:09,973 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-08-08 06:10:09,974 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-08-08 06:10:09,974 INFO L262 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-08-08 06:10:09,981 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-08-08 06:10:09,990 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-08-08 06:10:09,991 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2018-08-08 06:10:09,993 INFO L87 Difference]: Start difference. First operand 255 states. Second operand 6 states. [2018-08-08 06:10:15,430 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-08-08 06:10:15,430 INFO L93 Difference]: Finished difference Result 693 states and 1229 transitions. [2018-08-08 06:10:15,431 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-08-08 06:10:15,432 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 68 [2018-08-08 06:10:15,432 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-08-08 06:10:15,449 INFO L225 Difference]: With dead ends: 693 [2018-08-08 06:10:15,449 INFO L226 Difference]: Without dead ends: 436 [2018-08-08 06:10:15,457 INFO L603 BasicCegarLoop]: 2 DeclaredPredicates, 67 GetRequests, 63 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2018-08-08 06:10:15,474 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 436 states. [2018-08-08 06:10:15,527 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 436 to 434. [2018-08-08 06:10:15,528 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 434 states. [2018-08-08 06:10:15,531 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 434 states to 434 states and 615 transitions. [2018-08-08 06:10:15,533 INFO L78 Accepts]: Start accepts. Automaton has 434 states and 615 transitions. Word has length 68 [2018-08-08 06:10:15,534 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-08-08 06:10:15,534 INFO L480 AbstractCegarLoop]: Abstraction has 434 states and 615 transitions. [2018-08-08 06:10:15,534 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-08-08 06:10:15,534 INFO L276 IsEmpty]: Start isEmpty. Operand 434 states and 615 transitions. [2018-08-08 06:10:15,542 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2018-08-08 06:10:15,542 INFO L368 BasicCegarLoop]: Found error trace [2018-08-08 06:10:15,543 INFO L376 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, 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] [2018-08-08 06:10:15,543 INFO L423 AbstractCegarLoop]: === Iteration 2 === [__U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___true_unreach_call_false_termination_c__calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-08-08 06:10:15,543 INFO L82 PathProgramCache]: Analyzing trace with hash 1875302025, now seen corresponding path program 1 times [2018-08-08 06:10:15,544 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-08-08 06:10:15,544 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 154 with the following transitions: [2018-08-08 06:10:15,544 INFO L202 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], [367], [375], [383], [391], [399], [407], [415], [423], [431], [439], [443], [445], [448], [456], [464], [472], [480], [488], [493], [497], [501], [505], [509], [513], [517], [521], [525], [529], [533], [537], [541], [545], [549], [552], [946], [947], [948], [952], [956], [962], [966], [968], [973], [974], [975], [977], [978] [2018-08-08 06:10:15,550 INFO L148 AbstractInterpreter]: Using domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-08-08 06:10:15,550 INFO L101 FixpointEngine]: Starting fixpoint engine with domain CompoundDomain (maxUnwinding=3, maxParallelStates=2) [2018-08-08 06:10:23,977 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-08-08 06:10:23,978 INFO L272 AbstractInterpreter]: Visited 92 different actions 177 times. Merged at 4 different actions 4 times. Never widened. Found 1 fixpoints after 1 different actions. Largest state had 24 variables. [2018-08-08 06:10:23,990 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-08-08 06:10:27,908 INFO L232 lantSequenceWeakener]: Weakened 151 states. On average, predicates are now at 78.91% of their original sizes. [2018-08-08 06:10:27,908 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-08-08 06:10:29,810 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-08-08 06:10:29,811 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-08-08 06:10:29,811 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2018-08-08 06:10:29,812 INFO L262 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-08-08 06:10:29,814 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2018-08-08 06:10:29,814 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2018-08-08 06:10:29,814 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=80, Unknown=0, NotChecked=0, Total=110 [2018-08-08 06:10:29,814 INFO L87 Difference]: Start difference. First operand 434 states and 615 transitions. Second operand 11 states. [2018-08-08 06:10:41,272 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-08-08 06:10:41,272 INFO L93 Difference]: Finished difference Result 1051 states and 1763 transitions. [2018-08-08 06:10:41,273 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2018-08-08 06:10:41,273 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 153 [2018-08-08 06:10:41,275 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-08-08 06:10:41,284 INFO L225 Difference]: With dead ends: 1051 [2018-08-08 06:10:41,284 INFO L226 Difference]: Without dead ends: 806 [2018-08-08 06:10:41,290 INFO L603 BasicCegarLoop]: 2 DeclaredPredicates, 159 GetRequests, 87 SyntacticMatches, 56 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 312 ImplicationChecksByTransitivity, 2.1s TimeCoverageRelationStatistics Valid=74, Invalid=232, Unknown=0, NotChecked=0, Total=306 [2018-08-08 06:10:41,292 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 806 states. [2018-08-08 06:10:41,344 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 806 to 803. [2018-08-08 06:10:41,345 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 803 states. [2018-08-08 06:10:41,349 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 803 states to 803 states and 1002 transitions. [2018-08-08 06:10:41,350 INFO L78 Accepts]: Start accepts. Automaton has 803 states and 1002 transitions. Word has length 153 [2018-08-08 06:10:41,351 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-08-08 06:10:41,351 INFO L480 AbstractCegarLoop]: Abstraction has 803 states and 1002 transitions. [2018-08-08 06:10:41,351 INFO L481 AbstractCegarLoop]: Interpolant automaton has 11 states. [2018-08-08 06:10:41,351 INFO L276 IsEmpty]: Start isEmpty. Operand 803 states and 1002 transitions. [2018-08-08 06:10:41,356 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 180 [2018-08-08 06:10:41,356 INFO L368 BasicCegarLoop]: Found error trace [2018-08-08 06:10:41,356 INFO L376 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, 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] [2018-08-08 06:10:41,357 INFO L423 AbstractCegarLoop]: === Iteration 3 === [__U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___true_unreach_call_false_termination_c__calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-08-08 06:10:41,357 INFO L82 PathProgramCache]: Analyzing trace with hash 954835509, now seen corresponding path program 1 times [2018-08-08 06:10:41,357 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-08-08 06:10:41,358 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 180 with the following transitions: [2018-08-08 06:10:41,358 INFO L202 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], [367], [375], [383], [391], [399], [407], [415], [423], [431], [439], [443], [445], [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], [633], [637], [641], [645], [649], [653], [656], [946], [947], [948], [952], [956], [962], [966], [968], [973], [974], [975], [977], [978] [2018-08-08 06:10:41,364 INFO L148 AbstractInterpreter]: Using domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-08-08 06:10:41,364 INFO L101 FixpointEngine]: Starting fixpoint engine with domain CompoundDomain (maxUnwinding=3, maxParallelStates=2) [2018-08-08 06:11:00,929 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-08-08 06:11:00,929 INFO L272 AbstractInterpreter]: Visited 118 different actions 230 times. Merged at 5 different actions 5 times. Never widened. Found 1 fixpoints after 1 different actions. Largest state had 24 variables. [2018-08-08 06:11:00,938 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-08-08 06:11:09,951 INFO L232 lantSequenceWeakener]: Weakened 177 states. On average, predicates are now at 78.67% of their original sizes. [2018-08-08 06:11:09,951 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-08-08 06:11:11,658 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-08-08 06:11:11,659 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-08-08 06:11:11,659 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2018-08-08 06:11:11,659 INFO L262 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-08-08 06:11:11,661 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2018-08-08 06:11:11,661 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2018-08-08 06:11:11,663 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=81, Unknown=0, NotChecked=0, Total=110 [2018-08-08 06:11:11,664 INFO L87 Difference]: Start difference. First operand 803 states and 1002 transitions. Second operand 11 states. [2018-08-08 06:11:23,605 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-08-08 06:11:23,605 INFO L93 Difference]: Finished difference Result 1236 states and 1786 transitions. [2018-08-08 06:11:23,606 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2018-08-08 06:11:23,606 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 179 [2018-08-08 06:11:23,608 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-08-08 06:11:23,613 INFO L225 Difference]: With dead ends: 1236 [2018-08-08 06:11:23,613 INFO L226 Difference]: Without dead ends: 991 [2018-08-08 06:11:23,616 INFO L603 BasicCegarLoop]: 2 DeclaredPredicates, 186 GetRequests, 113 SyntacticMatches, 56 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 440 ImplicationChecksByTransitivity, 2.0s TimeCoverageRelationStatistics Valid=83, Invalid=259, Unknown=0, NotChecked=0, Total=342 [2018-08-08 06:11:23,617 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 991 states. [2018-08-08 06:11:23,671 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 991 to 988. [2018-08-08 06:11:23,672 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 988 states. [2018-08-08 06:11:23,677 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 988 states to 988 states and 1200 transitions. [2018-08-08 06:11:23,678 INFO L78 Accepts]: Start accepts. Automaton has 988 states and 1200 transitions. Word has length 179 [2018-08-08 06:11:23,678 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-08-08 06:11:23,678 INFO L480 AbstractCegarLoop]: Abstraction has 988 states and 1200 transitions. [2018-08-08 06:11:23,679 INFO L481 AbstractCegarLoop]: Interpolant automaton has 11 states. [2018-08-08 06:11:23,679 INFO L276 IsEmpty]: Start isEmpty. Operand 988 states and 1200 transitions. [2018-08-08 06:11:23,686 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 265 [2018-08-08 06:11:23,687 INFO L368 BasicCegarLoop]: Found error trace [2018-08-08 06:11:23,687 INFO L376 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-08-08 06:11:23,688 INFO L423 AbstractCegarLoop]: === Iteration 4 === [__U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___true_unreach_call_false_termination_c__calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-08-08 06:11:23,688 INFO L82 PathProgramCache]: Analyzing trace with hash -85710424, now seen corresponding path program 1 times [2018-08-08 06:11:23,688 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-08-08 06:11:23,688 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 265 with the following transitions: [2018-08-08 06:11:23,689 INFO L202 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], [367], [375], [383], [391], [399], [407], [415], [423], [431], [439], [443], [445], [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], [633], [637], [641], [645], [649], [653], [656], [946], [947], [948], [952], [956], [962], [966], [968], [973], [974], [975], [977], [978] [2018-08-08 06:11:23,694 INFO L148 AbstractInterpreter]: Using domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-08-08 06:11:23,694 INFO L101 FixpointEngine]: Starting fixpoint engine with domain CompoundDomain (maxUnwinding=3, maxParallelStates=2) [2018-08-08 06:11:38,840 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-08-08 06:11:38,840 INFO L272 AbstractInterpreter]: Visited 119 different actions 352 times. Merged at 7 different actions 17 times. Never widened. Found 4 fixpoints after 2 different actions. Largest state had 24 variables. [2018-08-08 06:11:38,844 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-08-08 06:11:41,819 INFO L232 lantSequenceWeakener]: Weakened 262 states. On average, predicates are now at 78.24% of their original sizes. [2018-08-08 06:11:41,820 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-08-08 06:11:42,645 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-08-08 06:11:42,646 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-08-08 06:11:42,646 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2018-08-08 06:11:42,646 INFO L262 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-08-08 06:11:42,647 INFO L459 AbstractCegarLoop]: Interpolant automaton has 16 states [2018-08-08 06:11:42,647 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2018-08-08 06:11:42,647 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=63, Invalid=177, Unknown=0, NotChecked=0, Total=240 [2018-08-08 06:11:42,648 INFO L87 Difference]: Start difference. First operand 988 states and 1200 transitions. Second operand 16 states. [2018-08-08 06:12:00,363 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-08-08 06:12:00,364 INFO L93 Difference]: Finished difference Result 2043 states and 3188 transitions. [2018-08-08 06:12:00,365 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2018-08-08 06:12:00,365 INFO L78 Accepts]: Start accepts. Automaton has 16 states. Word has length 264 [2018-08-08 06:12:00,367 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-08-08 06:12:00,376 INFO L225 Difference]: With dead ends: 2043 [2018-08-08 06:12:00,376 INFO L226 Difference]: Without dead ends: 1798 [2018-08-08 06:12:00,379 INFO L603 BasicCegarLoop]: 2 DeclaredPredicates, 282 GetRequests, 249 SyntacticMatches, 0 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 268 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=260, Invalid=930, Unknown=0, NotChecked=0, Total=1190 [2018-08-08 06:12:00,380 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1798 states. [2018-08-08 06:12:00,431 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1798 to 1605. [2018-08-08 06:12:00,432 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1605 states. [2018-08-08 06:12:00,438 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1605 states to 1605 states and 1893 transitions. [2018-08-08 06:12:00,438 INFO L78 Accepts]: Start accepts. Automaton has 1605 states and 1893 transitions. Word has length 264 [2018-08-08 06:12:00,439 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-08-08 06:12:00,439 INFO L480 AbstractCegarLoop]: Abstraction has 1605 states and 1893 transitions. [2018-08-08 06:12:00,439 INFO L481 AbstractCegarLoop]: Interpolant automaton has 16 states. [2018-08-08 06:12:00,439 INFO L276 IsEmpty]: Start isEmpty. Operand 1605 states and 1893 transitions. [2018-08-08 06:12:00,446 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 290 [2018-08-08 06:12:00,446 INFO L368 BasicCegarLoop]: Found error trace [2018-08-08 06:12:00,446 INFO L376 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-08-08 06:12:00,447 INFO L423 AbstractCegarLoop]: === Iteration 5 === [__U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___true_unreach_call_false_termination_c__calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-08-08 06:12:00,447 INFO L82 PathProgramCache]: Analyzing trace with hash 1484744265, now seen corresponding path program 1 times [2018-08-08 06:12:00,447 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-08-08 06:12:00,447 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 290 with the following transitions: [2018-08-08 06:12:00,448 INFO L202 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], [367], [375], [383], [391], [399], [407], [415], [423], [431], [439], [443], [445], [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], [633], [637], [641], [645], [649], [652], [653], [656], [946], [947], [948], [952], [956], [962], [966], [968], [973], [974], [975], [977], [978] [2018-08-08 06:12:00,466 INFO L148 AbstractInterpreter]: Using domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-08-08 06:12:00,466 INFO L101 FixpointEngine]: Starting fixpoint engine with domain CompoundDomain (maxUnwinding=3, maxParallelStates=2) [2018-08-08 06:12:21,218 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-08-08 06:12:38,941 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-08-08 06:12:38,941 INFO L272 AbstractInterpreter]: Visited 119 different actions 465 times. Merged at 7 different actions 22 times. Never widened. Found 4 fixpoints after 2 different actions. Largest state had 24 variables. [2018-08-08 06:12:38,979 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-08-08 06:12:43,587 INFO L232 lantSequenceWeakener]: Weakened 287 states. On average, predicates are now at 78.17% of their original sizes. [2018-08-08 06:12:43,587 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-08-08 06:12:45,834 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-08-08 06:12:45,835 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-08-08 06:12:45,835 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2018-08-08 06:12:45,835 INFO L262 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-08-08 06:12:45,836 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2018-08-08 06:12:45,837 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2018-08-08 06:12:45,837 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=81, Unknown=0, NotChecked=0, Total=110 [2018-08-08 06:12:45,837 INFO L87 Difference]: Start difference. First operand 1605 states and 1893 transitions. Second operand 11 states. [2018-08-08 06:12:56,300 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-08-08 06:12:56,300 INFO L93 Difference]: Finished difference Result 2044 states and 2683 transitions. [2018-08-08 06:12:56,302 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2018-08-08 06:12:56,302 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 289 [2018-08-08 06:12:56,303 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-08-08 06:12:56,313 INFO L225 Difference]: With dead ends: 2044 [2018-08-08 06:12:56,314 INFO L226 Difference]: Without dead ends: 1799 [2018-08-08 06:12:56,316 INFO L603 BasicCegarLoop]: 2 DeclaredPredicates, 297 GetRequests, 223 SyntacticMatches, 56 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 449 ImplicationChecksByTransitivity, 2.5s TimeCoverageRelationStatistics Valid=90, Invalid=290, Unknown=0, NotChecked=0, Total=380 [2018-08-08 06:12:56,319 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1799 states. [2018-08-08 06:12:56,377 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1799 to 1792. [2018-08-08 06:12:56,378 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1792 states. [2018-08-08 06:12:56,384 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1792 states to 1792 states and 2111 transitions. [2018-08-08 06:12:56,385 INFO L78 Accepts]: Start accepts. Automaton has 1792 states and 2111 transitions. Word has length 289 [2018-08-08 06:12:56,385 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-08-08 06:12:56,385 INFO L480 AbstractCegarLoop]: Abstraction has 1792 states and 2111 transitions. [2018-08-08 06:12:56,386 INFO L481 AbstractCegarLoop]: Interpolant automaton has 11 states. [2018-08-08 06:12:56,386 INFO L276 IsEmpty]: Start isEmpty. Operand 1792 states and 2111 transitions. [2018-08-08 06:12:56,395 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 368 [2018-08-08 06:12:56,395 INFO L368 BasicCegarLoop]: Found error trace [2018-08-08 06:12:56,395 INFO L376 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, 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, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2018-08-08 06:12:56,396 INFO L423 AbstractCegarLoop]: === Iteration 6 === [__U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___true_unreach_call_false_termination_c__calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-08-08 06:12:56,396 INFO L82 PathProgramCache]: Analyzing trace with hash -1849415267, now seen corresponding path program 1 times [2018-08-08 06:12:56,396 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-08-08 06:12:56,396 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 368 with the following transitions: [2018-08-08 06:12:56,397 INFO L202 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], [367], [375], [383], [391], [399], [407], [415], [423], [431], [439], [443], [445], [448], [456], [464], [472], [480], [488], [493], [497], [501], [505], [509], [513], [517], [521], [524], [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], [633], [637], [641], [645], [649], [652], [653], [656], [946], [947], [948], [952], [956], [962], [966], [968], [973], [974], [975], [977], [978] [2018-08-08 06:12:56,402 INFO L148 AbstractInterpreter]: Using domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-08-08 06:12:56,403 INFO L101 FixpointEngine]: Starting fixpoint engine with domain CompoundDomain (maxUnwinding=3, maxParallelStates=2) [2018-08-08 06:13:17,158 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-08-08 06:13:37,173 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-08-08 06:13:37,173 INFO L272 AbstractInterpreter]: Visited 120 different actions 710 times. Merged at 8 different actions 45 times. Widened at 1 different actions 1 times. Found 10 fixpoints after 2 different actions. Largest state had 24 variables. [2018-08-08 06:13:37,207 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-08-08 06:13:40,039 INFO L232 lantSequenceWeakener]: Weakened 365 states. On average, predicates are now at 77.99% of their original sizes. [2018-08-08 06:13:40,039 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-08-08 06:13:40,959 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-08-08 06:13:40,959 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-08-08 06:13:40,959 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2018-08-08 06:13:40,959 INFO L262 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-08-08 06:13:40,960 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2018-08-08 06:13:40,960 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2018-08-08 06:13:40,960 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2018-08-08 06:13:40,961 INFO L87 Difference]: Start difference. First operand 1792 states and 2111 transitions. Second operand 10 states. Received shutdown request... [2018-08-08 06:13:42,590 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-08-08 06:13:42,591 WARN L549 AbstractCegarLoop]: Verification canceled [2018-08-08 06:13:42,597 WARN L202 ceAbstractionStarter]: Timeout [2018-08-08 06:13:42,597 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 08.08 06:13:42 BoogieIcfgContainer [2018-08-08 06:13:42,598 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-08-08 06:13:42,598 INFO L168 Benchmark]: Toolchain (without parser) took 221616.06 ms. Allocated memory was 1.6 GB in the beginning and 4.3 GB in the end (delta: 2.8 GB). Free memory was 1.4 GB in the beginning and 3.9 GB in the end (delta: -2.5 GB). Peak memory consumption was 245.3 MB. Max. memory is 7.1 GB. [2018-08-08 06:13:42,600 INFO L168 Benchmark]: CDTParser took 0.23 ms. Allocated memory is still 1.6 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-08-08 06:13:42,601 INFO L168 Benchmark]: CACSL2BoogieTranslator took 793.03 ms. Allocated memory is still 1.6 GB. Free memory was 1.4 GB in the beginning and 1.4 GB in the end (delta: 42.3 MB). Peak memory consumption was 42.3 MB. Max. memory is 7.1 GB. [2018-08-08 06:13:42,602 INFO L168 Benchmark]: Boogie Procedure Inliner took 143.24 ms. Allocated memory is still 1.6 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. [2018-08-08 06:13:42,607 INFO L168 Benchmark]: Boogie Preprocessor took 247.35 ms. Allocated memory was 1.6 GB in the beginning and 2.3 GB in the end (delta: 779.6 MB). Free memory was 1.4 GB in the beginning and 2.3 GB in the end (delta: -891.7 MB). Peak memory consumption was 34.6 MB. Max. memory is 7.1 GB. [2018-08-08 06:13:42,608 INFO L168 Benchmark]: RCFGBuilder took 4085.82 ms. Allocated memory is still 2.3 GB. Free memory was 2.3 GB in the beginning and 2.1 GB in the end (delta: 139.2 MB). Peak memory consumption was 139.2 MB. Max. memory is 7.1 GB. [2018-08-08 06:13:42,608 INFO L168 Benchmark]: TraceAbstraction took 216340.88 ms. Allocated memory was 2.3 GB in the beginning and 4.3 GB in the end (delta: 2.0 GB). Free memory was 2.1 GB in the beginning and 3.9 GB in the end (delta: -1.8 GB). Peak memory consumption was 165.4 MB. Max. memory is 7.1 GB. [2018-08-08 06:13:42,622 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23 ms. Allocated memory is still 1.6 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 793.03 ms. Allocated memory is still 1.6 GB. Free memory was 1.4 GB in the beginning and 1.4 GB in the end (delta: 42.3 MB). Peak memory consumption was 42.3 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 143.24 ms. Allocated memory is still 1.6 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 247.35 ms. Allocated memory was 1.6 GB in the beginning and 2.3 GB in the end (delta: 779.6 MB). Free memory was 1.4 GB in the beginning and 2.3 GB in the end (delta: -891.7 MB). Peak memory consumption was 34.6 MB. Max. memory is 7.1 GB. * RCFGBuilder took 4085.82 ms. Allocated memory is still 2.3 GB. Free memory was 2.3 GB in the beginning and 2.1 GB in the end (delta: 139.2 MB). Peak memory consumption was 139.2 MB. Max. memory is 7.1 GB. * TraceAbstraction took 216340.88 ms. Allocated memory was 2.3 GB in the beginning and 4.3 GB in the end (delta: 2.0 GB). Free memory was 2.1 GB in the beginning and 3.9 GB in the end (delta: -1.8 GB). Peak memory consumption was 165.4 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResultAtElement [Line: 187]: Timeout (TraceAbstraction) Unable to prove that call of __VERIFIER_error() unreachable (line 187). Cancelled while BasicCegarLoop was constructing difference of abstraction (1792states) and FLOYD_HOARE automaton (currently 7 states, 10 states before enhancement), while ReachableStatesComputation was computing reachable states (25 states constructedinput type IntersectNwa). - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 255 locations, 1 error locations. TIMEOUT Result, 216.2s OverallTime, 6 OverallIterations, 4 TraceHistogramMax, 58.7s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 1213 SDtfs, 5441 SDslu, 1769 SDs, 0 SdLazy, 12214 SolverSat, 1537 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 52.2s Time, PredicateUnifierStatistics: 12 DeclaredPredicates, 1361 GetRequests, 1093 SyntacticMatches, 168 SemanticMatches, 100 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1486 ImplicationChecksByTransitivity, 10.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1792occurred in iteration=5, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 124.7s AbstIntTime, 6 AbstIntIterations, 6 AbstIntStrong, 0.9951923944627932 AbsIntWeakeningRatio, 0.1050228310502283 AbsIntAvgWeakeningVarsNumRemoved, 483.98021308980213 AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.3s AutomataMinimizationTime, 5 MinimizatonAttempts, 208 StatesRemovedByMinimization, 5 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: No data available, 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_label06_true-unreach-call_false-termination.c_svcomp-Reach-64bit-ToothlessTaipan_Default-OldIcfg.epf_AutomizerCInline.xml/Csv-Benchmark-0-2018-08-08_06-13-42-645.csv Written .csv to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/csv/Problem14_label06_true-unreach-call_false-termination.c_svcomp-Reach-64bit-ToothlessTaipan_Default-OldIcfg.epf_AutomizerCInline.xml/Csv-TraceAbstractionBenchmarks-0-2018-08-08_06-13-42-645.csv Completed graceful shutdown