java -Xmx8000000000 -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml --generate-csv --csv-dir csv -s ../../../trunk/examples/settings/default/taipan/svcomp-Reach-64bit-Taipan_Default-old.epf -i ../../../trunk/examples/svcomp/eca-rers2012/Problem17_label41_true-unreach-call.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-dd2f093 [2018-07-23 23:02:05,374 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-07-23 23:02:05,376 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-07-23 23:02:05,391 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-07-23 23:02:05,392 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-07-23 23:02:05,393 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-07-23 23:02:05,394 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-07-23 23:02:05,396 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-07-23 23:02:05,397 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-07-23 23:02:05,398 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-07-23 23:02:05,399 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-07-23 23:02:05,399 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-07-23 23:02:05,400 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-07-23 23:02:05,401 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-07-23 23:02:05,402 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-07-23 23:02:05,403 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-07-23 23:02:05,404 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-07-23 23:02:05,406 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-07-23 23:02:05,408 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-07-23 23:02:05,409 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-07-23 23:02:05,410 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-07-23 23:02:05,412 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-07-23 23:02:05,414 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-07-23 23:02:05,414 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-07-23 23:02:05,415 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-07-23 23:02:05,416 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-07-23 23:02:05,417 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-07-23 23:02:05,417 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-07-23 23:02:05,418 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-07-23 23:02:05,421 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-07-23 23:02:05,421 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-07-23 23:02:05,422 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-07-23 23:02:05,422 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-07-23 23:02:05,422 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-07-23 23:02:05,423 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-07-23 23:02:05,424 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-07-23 23:02:05,424 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/taipan/svcomp-Reach-64bit-Taipan_Default-old.epf [2018-07-23 23:02:05,453 INFO L110 SettingsManager]: Loading preferences was successful [2018-07-23 23:02:05,454 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-07-23 23:02:05,455 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-07-23 23:02:05,455 INFO L133 SettingsManager]: * User list type=DISABLED [2018-07-23 23:02:05,456 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-07-23 23:02:05,456 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-07-23 23:02:05,456 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-07-23 23:02:05,456 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-07-23 23:02:05,456 INFO L133 SettingsManager]: * Log string format=TERM [2018-07-23 23:02:05,456 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-07-23 23:02:05,457 INFO L133 SettingsManager]: * Interval Domain=false [2018-07-23 23:02:05,458 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-07-23 23:02:05,458 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-07-23 23:02:05,458 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-07-23 23:02:05,458 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-07-23 23:02:05,459 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-07-23 23:02:05,459 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-07-23 23:02:05,459 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-07-23 23:02:05,459 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-07-23 23:02:05,459 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-07-23 23:02:05,459 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-07-23 23:02:05,460 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-07-23 23:02:05,460 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-07-23 23:02:05,460 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-07-23 23:02:05,460 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-07-23 23:02:05,461 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-07-23 23:02:05,462 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-07-23 23:02:05,462 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-07-23 23:02:05,462 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-07-23 23:02:05,462 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-07-23 23:02:05,462 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-07-23 23:02:05,462 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-07-23 23:02:05,463 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-07-23 23:02:05,515 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-07-23 23:02:05,531 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-07-23 23:02:05,537 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-07-23 23:02:05,539 INFO L271 PluginConnector]: Initializing CDTParser... [2018-07-23 23:02:05,539 INFO L276 PluginConnector]: CDTParser initialized [2018-07-23 23:02:05,540 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem17_label41_true-unreach-call.c [2018-07-23 23:02:05,920 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ddb23fb21/aeeab5533b904950b775d0cc71c57ddb/FLAG6757964bc [2018-07-23 23:02:06,354 INFO L276 CDTParser]: Found 1 translation units. [2018-07-23 23:02:06,355 INFO L158 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem17_label41_true-unreach-call.c [2018-07-23 23:02:06,379 INFO L324 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ddb23fb21/aeeab5533b904950b775d0cc71c57ddb/FLAG6757964bc [2018-07-23 23:02:06,395 INFO L332 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ddb23fb21/aeeab5533b904950b775d0cc71c57ddb [2018-07-23 23:02:06,409 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-07-23 23:02:06,412 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-07-23 23:02:06,417 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-07-23 23:02:06,417 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-07-23 23:02:06,424 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-07-23 23:02:06,426 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.07 11:02:06" (1/1) ... [2018-07-23 23:02:06,429 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3036c7f6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 11:02:06, skipping insertion in model container [2018-07-23 23:02:06,430 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.07 11:02:06" (1/1) ... [2018-07-23 23:02:06,728 INFO L179 PRDispatcher]: Starting pre-run dispatcher in SV-COMP mode [2018-07-23 23:02:07,448 INFO L175 PostProcessor]: Settings: Checked method=main [2018-07-23 23:02:07,471 INFO L422 MainDispatcher]: Starting main dispatcher in SV-COMP mode [2018-07-23 23:02:07,980 INFO L175 PostProcessor]: Settings: Checked method=main [2018-07-23 23:02:08,213 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 11:02:08 WrapperNode [2018-07-23 23:02:08,214 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-07-23 23:02:08,215 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-07-23 23:02:08,216 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-07-23 23:02:08,216 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-07-23 23:02:08,227 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 11:02:08" (1/1) ... [2018-07-23 23:02:08,309 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 11:02:08" (1/1) ... [2018-07-23 23:02:08,520 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-07-23 23:02:08,521 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-07-23 23:02:08,521 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-07-23 23:02:08,521 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-07-23 23:02:09,135 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 11:02:08" (1/1) ... [2018-07-23 23:02:09,135 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 11:02:08" (1/1) ... [2018-07-23 23:02:09,171 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 11:02:08" (1/1) ... [2018-07-23 23:02:09,173 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 11:02:08" (1/1) ... [2018-07-23 23:02:09,311 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 11:02:08" (1/1) ... [2018-07-23 23:02:09,341 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 11:02:08" (1/1) ... [2018-07-23 23:02:09,389 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 11:02:08" (1/1) ... [2018-07-23 23:02:09,454 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-07-23 23:02:09,455 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-07-23 23:02:09,455 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-07-23 23:02:09,455 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-07-23 23:02:09,457 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 11:02:08" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-07-23 23:02:09,534 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-07-23 23:02:09,535 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-07-23 23:02:09,535 INFO L130 BoogieDeclarations]: Found specification of procedure __U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___true_unreach_call_c__calculate_output [2018-07-23 23:02:09,535 INFO L138 BoogieDeclarations]: Found implementation of procedure __U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___true_unreach_call_c__calculate_output [2018-07-23 23:02:09,536 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-07-23 23:02:09,536 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-07-23 23:02:09,536 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-07-23 23:02:09,537 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-07-23 23:02:09,537 INFO L130 BoogieDeclarations]: Found specification of procedure __U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___true_unreach_call_c__calculate_output2 [2018-07-23 23:02:09,537 INFO L138 BoogieDeclarations]: Found implementation of procedure __U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___true_unreach_call_c__calculate_output2 [2018-07-23 23:02:19,278 INFO L261 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-07-23 23:02:19,279 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.07 11:02:19 BoogieIcfgContainer [2018-07-23 23:02:19,279 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-07-23 23:02:19,280 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-07-23 23:02:19,280 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-07-23 23:02:19,287 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-07-23 23:02:19,292 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.07 11:02:06" (1/3) ... [2018-07-23 23:02:19,293 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3a7a2a13 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.07 11:02:19, skipping insertion in model container [2018-07-23 23:02:19,293 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 11:02:08" (2/3) ... [2018-07-23 23:02:19,294 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3a7a2a13 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.07 11:02:19, skipping insertion in model container [2018-07-23 23:02:19,294 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.07 11:02:19" (3/3) ... [2018-07-23 23:02:19,296 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem17_label41_true-unreach-call.c [2018-07-23 23:02:19,305 INFO L132 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-07-23 23:02:19,314 INFO L144 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-07-23 23:02:19,372 INFO L128 ementStrategyFactory]: Using default assertion order modulation [2018-07-23 23:02:19,373 INFO L373 AbstractCegarLoop]: Interprodecural is true [2018-07-23 23:02:19,374 INFO L374 AbstractCegarLoop]: Hoare is true [2018-07-23 23:02:19,374 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-07-23 23:02:19,374 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-07-23 23:02:19,374 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-07-23 23:02:19,374 INFO L378 AbstractCegarLoop]: Difference is false [2018-07-23 23:02:19,374 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-07-23 23:02:19,375 INFO L384 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-07-23 23:02:19,417 INFO L276 IsEmpty]: Start isEmpty. Operand 604 states. [2018-07-23 23:02:19,424 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2018-07-23 23:02:19,425 INFO L345 BasicCegarLoop]: Found error trace [2018-07-23 23:02:19,426 INFO L353 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-07-23 23:02:19,426 INFO L414 AbstractCegarLoop]: === Iteration 1 === [__U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___true_unreach_call_c__calculate_outputErr0AssertViolationERROR_FUNCTION]=== [2018-07-23 23:02:19,431 INFO L82 PathProgramCache]: Analyzing trace with hash -717477735, now seen corresponding path program 1 times [2018-07-23 23:02:19,434 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-07-23 23:02:19,479 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-23 23:02:19,479 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-23 23:02:19,480 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-23 23:02:19,480 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-07-23 23:02:19,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 23:02:19,913 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 23:02:19,919 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-23 23:02:19,919 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-07-23 23:02:19,920 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-07-23 23:02:19,927 INFO L450 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-07-23 23:02:19,943 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-07-23 23:02:19,944 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-07-23 23:02:19,950 INFO L87 Difference]: Start difference. First operand 604 states. Second operand 4 states. [2018-07-23 23:02:30,729 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 23:02:30,729 INFO L93 Difference]: Finished difference Result 2166 states and 4013 transitions. [2018-07-23 23:02:30,735 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-07-23 23:02:30,737 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 41 [2018-07-23 23:02:30,738 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 23:02:30,780 INFO L225 Difference]: With dead ends: 2166 [2018-07-23 23:02:30,780 INFO L226 Difference]: Without dead ends: 1556 [2018-07-23 23:02:30,795 INFO L573 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-07-23 23:02:30,816 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1556 states. [2018-07-23 23:02:30,923 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1556 to 1068. [2018-07-23 23:02:30,925 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1068 states. [2018-07-23 23:02:30,932 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1068 states to 1068 states and 1850 transitions. [2018-07-23 23:02:30,934 INFO L78 Accepts]: Start accepts. Automaton has 1068 states and 1850 transitions. Word has length 41 [2018-07-23 23:02:30,935 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 23:02:30,935 INFO L471 AbstractCegarLoop]: Abstraction has 1068 states and 1850 transitions. [2018-07-23 23:02:30,935 INFO L472 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-07-23 23:02:30,935 INFO L276 IsEmpty]: Start isEmpty. Operand 1068 states and 1850 transitions. [2018-07-23 23:02:30,944 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2018-07-23 23:02:30,944 INFO L345 BasicCegarLoop]: Found error trace [2018-07-23 23:02:30,945 INFO L353 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-07-23 23:02:30,945 INFO L414 AbstractCegarLoop]: === Iteration 2 === [__U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___true_unreach_call_c__calculate_outputErr0AssertViolationERROR_FUNCTION]=== [2018-07-23 23:02:30,945 INFO L82 PathProgramCache]: Analyzing trace with hash -1601119598, now seen corresponding path program 1 times [2018-07-23 23:02:30,945 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-07-23 23:02:30,947 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-23 23:02:30,947 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-23 23:02:30,947 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-23 23:02:30,947 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-07-23 23:02:30,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 23:02:31,428 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 34 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 23:02:31,428 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-23 23:02:31,429 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-07-23 23:02:31,429 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-07-23 23:02:31,432 INFO L450 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-07-23 23:02:31,432 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-07-23 23:02:31,432 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-07-23 23:02:31,433 INFO L87 Difference]: Start difference. First operand 1068 states and 1850 transitions. Second operand 6 states. [2018-07-23 23:02:42,020 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 23:02:42,021 INFO L93 Difference]: Finished difference Result 3059 states and 5419 transitions. [2018-07-23 23:02:42,028 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-07-23 23:02:42,029 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 117 [2018-07-23 23:02:42,029 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 23:02:42,046 INFO L225 Difference]: With dead ends: 3059 [2018-07-23 23:02:42,046 INFO L226 Difference]: Without dead ends: 1997 [2018-07-23 23:02:42,051 INFO L573 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2018-07-23 23:02:42,053 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1997 states. [2018-07-23 23:02:42,139 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1997 to 1975. [2018-07-23 23:02:42,140 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1975 states. [2018-07-23 23:02:42,150 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1975 states to 1975 states and 3181 transitions. [2018-07-23 23:02:42,151 INFO L78 Accepts]: Start accepts. Automaton has 1975 states and 3181 transitions. Word has length 117 [2018-07-23 23:02:42,151 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 23:02:42,151 INFO L471 AbstractCegarLoop]: Abstraction has 1975 states and 3181 transitions. [2018-07-23 23:02:42,152 INFO L472 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-07-23 23:02:42,152 INFO L276 IsEmpty]: Start isEmpty. Operand 1975 states and 3181 transitions. [2018-07-23 23:02:42,164 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2018-07-23 23:02:42,165 INFO L345 BasicCegarLoop]: Found error trace [2018-07-23 23:02:42,165 INFO L353 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-07-23 23:02:42,165 INFO L414 AbstractCegarLoop]: === Iteration 3 === [__U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___true_unreach_call_c__calculate_outputErr0AssertViolationERROR_FUNCTION]=== [2018-07-23 23:02:42,166 INFO L82 PathProgramCache]: Analyzing trace with hash -1900213414, now seen corresponding path program 1 times [2018-07-23 23:02:42,166 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-07-23 23:02:42,169 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-23 23:02:42,169 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-23 23:02:42,169 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-23 23:02:42,169 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-07-23 23:02:42,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 23:02:42,440 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 34 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 23:02:42,440 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-23 23:02:42,440 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-07-23 23:02:42,440 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-07-23 23:02:42,441 INFO L450 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-07-23 23:02:42,441 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-07-23 23:02:42,442 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-07-23 23:02:42,442 INFO L87 Difference]: Start difference. First operand 1975 states and 3181 transitions. Second operand 6 states. [2018-07-23 23:02:49,807 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 23:02:49,807 INFO L93 Difference]: Finished difference Result 4880 states and 7834 transitions. [2018-07-23 23:02:49,808 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-07-23 23:02:49,808 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 121 [2018-07-23 23:02:49,809 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 23:02:49,827 INFO L225 Difference]: With dead ends: 4880 [2018-07-23 23:02:49,827 INFO L226 Difference]: Without dead ends: 2911 [2018-07-23 23:02:49,836 INFO L573 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 [2018-07-23 23:02:49,839 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2911 states. [2018-07-23 23:02:49,904 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2911 to 2880. [2018-07-23 23:02:49,905 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2880 states. [2018-07-23 23:02:49,915 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2880 states to 2880 states and 3936 transitions. [2018-07-23 23:02:49,915 INFO L78 Accepts]: Start accepts. Automaton has 2880 states and 3936 transitions. Word has length 121 [2018-07-23 23:02:49,916 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 23:02:49,916 INFO L471 AbstractCegarLoop]: Abstraction has 2880 states and 3936 transitions. [2018-07-23 23:02:49,916 INFO L472 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-07-23 23:02:49,916 INFO L276 IsEmpty]: Start isEmpty. Operand 2880 states and 3936 transitions. [2018-07-23 23:02:49,918 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 152 [2018-07-23 23:02:49,919 INFO L345 BasicCegarLoop]: Found error trace [2018-07-23 23:02:49,919 INFO L353 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-07-23 23:02:49,919 INFO L414 AbstractCegarLoop]: === Iteration 4 === [__U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___true_unreach_call_c__calculate_outputErr0AssertViolationERROR_FUNCTION]=== [2018-07-23 23:02:49,919 INFO L82 PathProgramCache]: Analyzing trace with hash 633193405, now seen corresponding path program 1 times [2018-07-23 23:02:49,920 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-07-23 23:02:49,920 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-23 23:02:49,921 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-23 23:02:49,921 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-23 23:02:49,921 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-07-23 23:02:49,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 23:02:50,179 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 34 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 23:02:50,179 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-23 23:02:50,179 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-07-23 23:02:50,179 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-07-23 23:02:50,180 INFO L450 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-07-23 23:02:50,180 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-07-23 23:02:50,181 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-07-23 23:02:50,181 INFO L87 Difference]: Start difference. First operand 2880 states and 3936 transitions. Second operand 4 states. [2018-07-23 23:02:55,984 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 23:02:55,990 INFO L93 Difference]: Finished difference Result 5754 states and 7882 transitions. [2018-07-23 23:02:55,992 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-07-23 23:02:55,993 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 151 [2018-07-23 23:02:55,993 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 23:02:56,007 INFO L225 Difference]: With dead ends: 5754 [2018-07-23 23:02:56,008 INFO L226 Difference]: Without dead ends: 2880 [2018-07-23 23:02:56,020 INFO L573 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-07-23 23:02:56,023 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2880 states. [2018-07-23 23:02:56,085 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2880 to 2880. [2018-07-23 23:02:56,086 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2880 states. [2018-07-23 23:02:56,099 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2880 states to 2880 states and 3720 transitions. [2018-07-23 23:02:56,100 INFO L78 Accepts]: Start accepts. Automaton has 2880 states and 3720 transitions. Word has length 151 [2018-07-23 23:02:56,100 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 23:02:56,101 INFO L471 AbstractCegarLoop]: Abstraction has 2880 states and 3720 transitions. [2018-07-23 23:02:56,101 INFO L472 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-07-23 23:02:56,101 INFO L276 IsEmpty]: Start isEmpty. Operand 2880 states and 3720 transitions. [2018-07-23 23:02:56,104 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 206 [2018-07-23 23:02:56,104 INFO L345 BasicCegarLoop]: Found error trace [2018-07-23 23:02:56,105 INFO L353 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-07-23 23:02:56,105 INFO L414 AbstractCegarLoop]: === Iteration 5 === [__U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___true_unreach_call_c__calculate_outputErr0AssertViolationERROR_FUNCTION]=== [2018-07-23 23:02:56,105 INFO L82 PathProgramCache]: Analyzing trace with hash -1584228125, now seen corresponding path program 1 times [2018-07-23 23:02:56,105 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-07-23 23:02:56,106 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-23 23:02:56,106 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-23 23:02:56,107 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-23 23:02:56,107 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-07-23 23:02:56,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 23:02:56,377 INFO L134 CoverageAnalysis]: Checked inductivity of 144 backedges. 71 proven. 0 refuted. 0 times theorem prover too weak. 73 trivial. 0 not checked. [2018-07-23 23:02:56,378 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-23 23:02:56,378 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-07-23 23:02:56,378 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-07-23 23:02:56,379 INFO L450 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-07-23 23:02:56,379 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-07-23 23:02:56,379 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-07-23 23:02:56,380 INFO L87 Difference]: Start difference. First operand 2880 states and 3720 transitions. Second operand 3 states. [2018-07-23 23:03:02,324 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 23:03:02,324 INFO L93 Difference]: Finished difference Result 8399 states and 11037 transitions. [2018-07-23 23:03:02,326 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-07-23 23:03:02,326 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 205 [2018-07-23 23:03:02,327 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 23:03:02,348 INFO L225 Difference]: With dead ends: 8399 [2018-07-23 23:03:02,348 INFO L226 Difference]: Without dead ends: 5525 [2018-07-23 23:03:02,359 INFO L573 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-07-23 23:03:02,364 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5525 states. [2018-07-23 23:03:02,467 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5525 to 5525. [2018-07-23 23:03:02,467 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5525 states. [2018-07-23 23:03:02,480 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5525 states to 5525 states and 6667 transitions. [2018-07-23 23:03:02,481 INFO L78 Accepts]: Start accepts. Automaton has 5525 states and 6667 transitions. Word has length 205 [2018-07-23 23:03:02,481 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 23:03:02,481 INFO L471 AbstractCegarLoop]: Abstraction has 5525 states and 6667 transitions. [2018-07-23 23:03:02,482 INFO L472 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-07-23 23:03:02,482 INFO L276 IsEmpty]: Start isEmpty. Operand 5525 states and 6667 transitions. [2018-07-23 23:03:02,487 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 229 [2018-07-23 23:03:02,487 INFO L345 BasicCegarLoop]: Found error trace [2018-07-23 23:03:02,488 INFO L353 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-07-23 23:03:02,488 INFO L414 AbstractCegarLoop]: === Iteration 6 === [__U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___true_unreach_call_c__calculate_outputErr0AssertViolationERROR_FUNCTION]=== [2018-07-23 23:03:02,488 INFO L82 PathProgramCache]: Analyzing trace with hash -1248541463, now seen corresponding path program 1 times [2018-07-23 23:03:02,488 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-07-23 23:03:02,489 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-23 23:03:02,490 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-23 23:03:02,490 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-23 23:03:02,490 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-07-23 23:03:02,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 23:03:03,210 INFO L134 CoverageAnalysis]: Checked inductivity of 145 backedges. 68 proven. 72 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2018-07-23 23:03:03,211 INFO L297 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-07-23 23:03:03,211 INFO L191 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-07-23 23:03:03,212 INFO L199 CegarAbsIntRunner]: Running AI on error trace of length 229 with the following transitions: [2018-07-23 23:03:03,214 INFO L201 CegarAbsIntRunner]: [0], [1], [2], [9], [17], [25], [33], [41], [49], [57], [65], [73], [81], [89], [97], [105], [113], [121], [129], [137], [145], [153], [161], [169], [177], [185], [193], [201], [209], [217], [225], [229], [231], [234], [242], [250], [258], [266], [274], [282], [290], [298], [306], [314], [322], [330], [338], [346], [354], [362], [370], [378], [386], [394], [402], [410], [418], [426], [434], [442], [450], [458], [466], [474], [482], [490], [495], [499], [503], [507], [511], [515], [519], [522], [523], [527], [531], [535], [546], [550], [554], [558], [562], [566], [570], [574], [578], [582], [586], [590], [594], [598], [609], [613], [617], [621], [625], [636], [640], [644], [648], [652], [656], [660], [664], [668], [672], [675], [1570], [1574], [1578], [1584], [1588], [1590], [2306], [2307], [2308], [2310], [2311] [2018-07-23 23:03:03,295 INFO L148 AbstractInterpreter]: Using domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-07-23 23:03:03,295 INFO L101 FixpointEngine]: Starting fixpoint engine with domain CompoundDomain (maxUnwinding=3, maxParallelStates=2) [2018-07-23 23:03:41,576 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-07-23 23:03:41,578 INFO L272 AbstractInterpreter]: Visited 115 different actions 115 times. Never merged. Never widened. Never found a fixpoint. Largest state had 26 variables. [2018-07-23 23:03:41,588 INFO L395 sIntCurrentIteration]: Generating AbsInt predicates [2018-07-23 23:04:00,369 INFO L232 lantSequenceWeakener]: Weakened 220 states. On average, predicates are now at 75.47% of their original sizes. [2018-07-23 23:04:00,370 INFO L408 sIntCurrentIteration]: Unifying AI predicates [2018-07-23 23:04:00,979 INFO L419 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-07-23 23:04:00,980 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-07-23 23:04:00,980 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [8] imperfect sequences [7] total 13 [2018-07-23 23:04:00,981 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-07-23 23:04:00,981 INFO L450 AbstractCegarLoop]: Interpolant automaton has 8 states [2018-07-23 23:04:00,981 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2018-07-23 23:04:00,982 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2018-07-23 23:04:00,982 INFO L87 Difference]: Start difference. First operand 5525 states and 6667 transitions. Second operand 8 states. [2018-07-23 23:04:25,845 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. Received shutdown request... [2018-07-23 23:06:04,878 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-07-23 23:06:04,878 WARN L540 AbstractCegarLoop]: Verification canceled [2018-07-23 23:06:04,885 WARN L202 ceAbstractionStarter]: Timeout [2018-07-23 23:06:04,885 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.07 11:06:04 BoogieIcfgContainer [2018-07-23 23:06:04,885 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-07-23 23:06:04,886 INFO L168 Benchmark]: Toolchain (without parser) took 238475.79 ms. Allocated memory was 1.5 GB in the beginning and 5.2 GB in the end (delta: 3.7 GB). Free memory was 1.4 GB in the beginning and 1.3 GB in the end (delta: 123.2 MB). Peak memory consumption was 3.8 GB. Max. memory is 7.1 GB. [2018-07-23 23:06:04,888 INFO L168 Benchmark]: CDTParser took 0.75 ms. Allocated memory is still 1.5 GB. Free memory is still 1.4 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-07-23 23:06:04,889 INFO L168 Benchmark]: CACSL2BoogieTranslator took 1797.48 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.2 GB in the end (delta: 190.3 MB). Peak memory consumption was 190.3 MB. Max. memory is 7.1 GB. [2018-07-23 23:06:04,889 INFO L168 Benchmark]: Boogie Procedure Inliner took 305.51 ms. Allocated memory is still 1.5 GB. Free memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 42.3 MB). Peak memory consumption was 42.3 MB. Max. memory is 7.1 GB. [2018-07-23 23:06:04,890 INFO L168 Benchmark]: Boogie Preprocessor took 933.76 ms. Allocated memory was 1.5 GB in the beginning and 2.4 GB in the end (delta: 916.5 MB). Free memory was 1.2 GB in the beginning and 2.3 GB in the end (delta: -1.1 GB). Peak memory consumption was 123.6 MB. Max. memory is 7.1 GB. [2018-07-23 23:06:04,891 INFO L168 Benchmark]: RCFGBuilder took 9823.85 ms. Allocated memory is still 2.4 GB. Free memory was 2.3 GB in the beginning and 1.8 GB in the end (delta: 500.0 MB). Peak memory consumption was 500.0 MB. Max. memory is 7.1 GB. [2018-07-23 23:06:04,892 INFO L168 Benchmark]: TraceAbstraction took 225605.38 ms. Allocated memory was 2.4 GB in the beginning and 5.2 GB in the end (delta: 2.7 GB). Free memory was 1.8 GB in the beginning and 1.3 GB in the end (delta: 532.3 MB). Peak memory consumption was 3.3 GB. Max. memory is 7.1 GB. [2018-07-23 23:06:04,897 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.75 ms. Allocated memory is still 1.5 GB. Free memory is still 1.4 GB. There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 1797.48 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.2 GB in the end (delta: 190.3 MB). Peak memory consumption was 190.3 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 305.51 ms. Allocated memory is still 1.5 GB. Free memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 42.3 MB). Peak memory consumption was 42.3 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 933.76 ms. Allocated memory was 1.5 GB in the beginning and 2.4 GB in the end (delta: 916.5 MB). Free memory was 1.2 GB in the beginning and 2.3 GB in the end (delta: -1.1 GB). Peak memory consumption was 123.6 MB. Max. memory is 7.1 GB. * RCFGBuilder took 9823.85 ms. Allocated memory is still 2.4 GB. Free memory was 2.3 GB in the beginning and 1.8 GB in the end (delta: 500.0 MB). Peak memory consumption was 500.0 MB. Max. memory is 7.1 GB. * TraceAbstraction took 225605.38 ms. Allocated memory was 2.4 GB in the beginning and 5.2 GB in the end (delta: 2.7 GB). Free memory was 1.8 GB in the beginning and 1.3 GB in the end (delta: 532.3 MB). Peak memory consumption was 3.3 GB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResultAtElement [Line: 110]: Timeout (TraceAbstraction) Unable to prove that call of __VERIFIER_error() unreachable (line 110). Cancelled while BasicCegarLoop was constructing difference of abstraction (5525states) and interpolant automaton (currently 7 states, 8 states before enhancement), while ReachableStatesComputation was computing reachable states (180 states constructedinput type IntersectNwa). - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 604 locations, 1 error locations. TIMEOUT Result, 225.5s OverallTime, 6 OverallIterations, 3 TraceHistogramMax, 164.5s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 2108 SDtfs, 6640 SDslu, 1162 SDs, 0 SdLazy, 11098 SolverSat, 2929 SolverUnsat, 1 SolverUnknown, 0 SolverNotchecked, 157.1s Time, PredicateUnifierStatistics: 2 DeclaredPredicates, 264 GetRequests, 235 SyntacticMatches, 3 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 1.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=5525occurred in iteration=5, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 38.3s AbstIntTime, 1 AbstIntIterations, 1 AbstIntStrong, 0.9957302609284987 AbsIntWeakeningRatio, 0.11894273127753303 AbsIntAvgWeakeningVarsNumRemoved, 1046.5638766519824 AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.5s AutomataMinimizationTime, 5 MinimizatonAttempts, 541 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 1.7s InterpolantComputationTime, 863 NumberOfCodeBlocks, 863 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 857 ConstructedInterpolants, 0 QuantifiedInterpolants, 673048 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 6 InterpolantComputations, 5 PerfectInterpolantSequences, 319/391 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Written .csv to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/csv/Problem17_label41_true-unreach-call.c_svcomp-Reach-64bit-Taipan_Default-old.epf_AutomizerCInline.xml/Csv-Benchmark-0-2018-07-23_23-06-04-912.csv Written .csv to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/csv/Problem17_label41_true-unreach-call.c_svcomp-Reach-64bit-Taipan_Default-old.epf_AutomizerCInline.xml/Csv-TraceAbstractionBenchmarks-0-2018-07-23_23-06-04-912.csv Completed graceful shutdown