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/ai/taipanbench/svcomp-Reach-64bit-RubberTaipan_Default-OldIcfg.epf -i ../../../trunk/examples/svcomp/eca-rers2012/Problem15_label23_false-unreach-call.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-dd2f093 [2018-07-24 12:09:58,312 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-07-24 12:09:58,315 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-07-24 12:09:58,328 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-07-24 12:09:58,329 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-07-24 12:09:58,330 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-07-24 12:09:58,331 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-07-24 12:09:58,335 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-07-24 12:09:58,337 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-07-24 12:09:58,338 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-07-24 12:09:58,339 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-07-24 12:09:58,339 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-07-24 12:09:58,340 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-07-24 12:09:58,341 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-07-24 12:09:58,342 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-07-24 12:09:58,343 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-07-24 12:09:58,344 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-07-24 12:09:58,348 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-07-24 12:09:58,350 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-07-24 12:09:58,355 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-07-24 12:09:58,356 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-07-24 12:09:58,357 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-07-24 12:09:58,362 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-07-24 12:09:58,363 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-07-24 12:09:58,363 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-07-24 12:09:58,368 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-07-24 12:09:58,369 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-07-24 12:09:58,372 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-07-24 12:09:58,373 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-07-24 12:09:58,377 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-07-24 12:09:58,378 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-07-24 12:09:58,378 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-07-24 12:09:58,379 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-07-24 12:09:58,379 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-07-24 12:09:58,382 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-07-24 12:09:58,382 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-07-24 12:09:58,383 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/ai/taipanbench/svcomp-Reach-64bit-RubberTaipan_Default-OldIcfg.epf [2018-07-24 12:09:58,403 INFO L110 SettingsManager]: Loading preferences was successful [2018-07-24 12:09:58,404 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-07-24 12:09:58,404 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-07-24 12:09:58,405 INFO L133 SettingsManager]: * User list type=DISABLED [2018-07-24 12:09:58,405 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-07-24 12:09:58,405 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-07-24 12:09:58,405 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-07-24 12:09:58,405 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-07-24 12:09:58,406 INFO L133 SettingsManager]: * Log string format=TERM [2018-07-24 12:09:58,406 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-07-24 12:09:58,406 INFO L133 SettingsManager]: * Interval Domain=false [2018-07-24 12:09:58,407 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-07-24 12:09:58,407 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-07-24 12:09:58,407 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-07-24 12:09:58,407 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-07-24 12:09:58,407 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-07-24 12:09:58,408 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-07-24 12:09:58,408 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-07-24 12:09:58,408 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-07-24 12:09:58,408 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-07-24 12:09:58,408 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-07-24 12:09:58,409 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-07-24 12:09:58,409 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-07-24 12:09:58,409 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-07-24 12:09:58,409 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-07-24 12:09:58,409 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-07-24 12:09:58,410 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-07-24 12:09:58,410 INFO L133 SettingsManager]: * Trace refinement strategy=RUBBER_TAIPAN [2018-07-24 12:09:58,410 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-07-24 12:09:58,410 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-07-24 12:09:58,410 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-07-24 12:09:58,411 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-07-24 12:09:58,411 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-07-24 12:09:58,453 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-07-24 12:09:58,469 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-07-24 12:09:58,476 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-07-24 12:09:58,478 INFO L271 PluginConnector]: Initializing CDTParser... [2018-07-24 12:09:58,479 INFO L276 PluginConnector]: CDTParser initialized [2018-07-24 12:09:58,480 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem15_label23_false-unreach-call.c [2018-07-24 12:09:58,826 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e56872e40/258dca2e4dcf42a487b93cc770383e32/FLAG6dc9a8759 [2018-07-24 12:09:59,184 INFO L276 CDTParser]: Found 1 translation units. [2018-07-24 12:09:59,185 INFO L158 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem15_label23_false-unreach-call.c [2018-07-24 12:09:59,209 INFO L324 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e56872e40/258dca2e4dcf42a487b93cc770383e32/FLAG6dc9a8759 [2018-07-24 12:09:59,226 INFO L332 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e56872e40/258dca2e4dcf42a487b93cc770383e32 [2018-07-24 12:09:59,237 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-07-24 12:09:59,238 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-07-24 12:09:59,240 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-07-24 12:09:59,240 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-07-24 12:09:59,247 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-07-24 12:09:59,249 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.07 12:09:59" (1/1) ... [2018-07-24 12:09:59,252 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3b25a4a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.07 12:09:59, skipping insertion in model container [2018-07-24 12:09:59,252 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.07 12:09:59" (1/1) ... [2018-07-24 12:09:59,550 INFO L179 PRDispatcher]: Starting pre-run dispatcher in SV-COMP mode [2018-07-24 12:10:00,163 INFO L175 PostProcessor]: Settings: Checked method=main [2018-07-24 12:10:00,182 INFO L422 MainDispatcher]: Starting main dispatcher in SV-COMP mode [2018-07-24 12:10:00,511 INFO L175 PostProcessor]: Settings: Checked method=main [2018-07-24 12:10:00,635 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.07 12:10:00 WrapperNode [2018-07-24 12:10:00,635 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-07-24 12:10:00,636 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-07-24 12:10:00,637 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-07-24 12:10:00,637 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-07-24 12:10:00,647 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.07 12:10:00" (1/1) ... [2018-07-24 12:10:00,695 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.07 12:10:00" (1/1) ... [2018-07-24 12:10:00,858 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-07-24 12:10:00,858 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-07-24 12:10:00,858 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-07-24 12:10:00,859 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-07-24 12:10:01,337 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.07 12:10:00" (1/1) ... [2018-07-24 12:10:01,338 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.07 12:10:00" (1/1) ... [2018-07-24 12:10:01,357 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.07 12:10:00" (1/1) ... [2018-07-24 12:10:01,357 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.07 12:10:00" (1/1) ... [2018-07-24 12:10:01,415 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.07 12:10:00" (1/1) ... [2018-07-24 12:10:01,443 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.07 12:10:00" (1/1) ... [2018-07-24 12:10:01,464 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.07 12:10:00" (1/1) ... [2018-07-24 12:10:01,500 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-07-24 12:10:01,501 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-07-24 12:10:01,501 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-07-24 12:10:01,501 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-07-24 12:10:01,502 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.07 12:10:00" (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 [2018-07-24 12:10:01,569 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-07-24 12:10:01,569 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-07-24 12:10:01,569 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-07-24 12:10:01,570 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-07-24 12:10:01,570 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-07-24 12:10:01,570 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-07-24 12:10:01,570 INFO L130 BoogieDeclarations]: Found specification of procedure __U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___false_unreach_call_c__calculate_output2 [2018-07-24 12:10:01,570 INFO L138 BoogieDeclarations]: Found implementation of procedure __U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___false_unreach_call_c__calculate_output2 [2018-07-24 12:10:01,570 INFO L130 BoogieDeclarations]: Found specification of procedure __U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___false_unreach_call_c__calculate_output [2018-07-24 12:10:01,571 INFO L138 BoogieDeclarations]: Found implementation of procedure __U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___false_unreach_call_c__calculate_output [2018-07-24 12:10:08,408 INFO L261 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-07-24 12:10:08,409 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.07 12:10:08 BoogieIcfgContainer [2018-07-24 12:10:08,409 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-07-24 12:10:08,410 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-07-24 12:10:08,410 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-07-24 12:10:08,413 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-07-24 12:10:08,414 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.07 12:09:59" (1/3) ... [2018-07-24 12:10:08,415 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@114e1903 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.07 12:10:08, skipping insertion in model container [2018-07-24 12:10:08,415 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.07 12:10:00" (2/3) ... [2018-07-24 12:10:08,415 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@114e1903 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.07 12:10:08, skipping insertion in model container [2018-07-24 12:10:08,415 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.07 12:10:08" (3/3) ... [2018-07-24 12:10:08,417 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem15_label23_false-unreach-call.c [2018-07-24 12:10:08,427 INFO L132 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-07-24 12:10:08,436 INFO L144 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-07-24 12:10:08,489 INFO L128 ementStrategyFactory]: Using default assertion order modulation [2018-07-24 12:10:08,490 INFO L373 AbstractCegarLoop]: Interprodecural is true [2018-07-24 12:10:08,490 INFO L374 AbstractCegarLoop]: Hoare is true [2018-07-24 12:10:08,491 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-07-24 12:10:08,491 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-07-24 12:10:08,491 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-07-24 12:10:08,491 INFO L378 AbstractCegarLoop]: Difference is false [2018-07-24 12:10:08,491 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-07-24 12:10:08,492 INFO L384 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-07-24 12:10:08,522 INFO L276 IsEmpty]: Start isEmpty. Operand 438 states. [2018-07-24 12:10:08,529 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2018-07-24 12:10:08,530 INFO L345 BasicCegarLoop]: Found error trace [2018-07-24 12:10:08,531 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] [2018-07-24 12:10:08,531 INFO L414 AbstractCegarLoop]: === Iteration 1 === [__U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___false_unreach_call_c__calculate_outputErr0AssertViolationERROR_FUNCTION]=== [2018-07-24 12:10:08,537 INFO L82 PathProgramCache]: Analyzing trace with hash 933735052, now seen corresponding path program 1 times [2018-07-24 12:10:08,540 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-07-24 12:10:08,587 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 12:10:08,587 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 12:10:08,588 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 12:10:08,588 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-07-24 12:10:08,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 12:10:08,969 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-24 12:10:08,977 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-24 12:10:08,977 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-07-24 12:10:08,978 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-07-24 12:10:08,983 INFO L450 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-07-24 12:10:08,999 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-07-24 12:10:08,999 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-07-24 12:10:09,002 INFO L87 Difference]: Start difference. First operand 438 states. Second operand 4 states. [2018-07-24 12:10:16,875 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-24 12:10:16,876 INFO L93 Difference]: Finished difference Result 1558 states and 2849 transitions. [2018-07-24 12:10:16,876 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-07-24 12:10:16,878 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 24 [2018-07-24 12:10:16,878 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-24 12:10:16,913 INFO L225 Difference]: With dead ends: 1558 [2018-07-24 12:10:16,913 INFO L226 Difference]: Without dead ends: 1114 [2018-07-24 12:10:16,923 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 [2018-07-24 12:10:16,944 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1114 states. [2018-07-24 12:10:17,048 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1114 to 759. [2018-07-24 12:10:17,050 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 759 states. [2018-07-24 12:10:17,056 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 759 states to 759 states and 1355 transitions. [2018-07-24 12:10:17,058 INFO L78 Accepts]: Start accepts. Automaton has 759 states and 1355 transitions. Word has length 24 [2018-07-24 12:10:17,059 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-24 12:10:17,059 INFO L471 AbstractCegarLoop]: Abstraction has 759 states and 1355 transitions. [2018-07-24 12:10:17,061 INFO L472 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-07-24 12:10:17,061 INFO L276 IsEmpty]: Start isEmpty. Operand 759 states and 1355 transitions. [2018-07-24 12:10:17,068 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2018-07-24 12:10:17,068 INFO L345 BasicCegarLoop]: Found error trace [2018-07-24 12:10:17,069 INFO L353 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-07-24 12:10:17,069 INFO L414 AbstractCegarLoop]: === Iteration 2 === [__U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___false_unreach_call_c__calculate_outputErr0AssertViolationERROR_FUNCTION]=== [2018-07-24 12:10:17,071 INFO L82 PathProgramCache]: Analyzing trace with hash 756914167, now seen corresponding path program 1 times [2018-07-24 12:10:17,071 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-07-24 12:10:17,072 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 12:10:17,072 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 12:10:17,073 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 12:10:17,073 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-07-24 12:10:17,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 12:10:17,347 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 17 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-24 12:10:17,348 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-24 12:10:17,348 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-07-24 12:10:17,348 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-07-24 12:10:17,350 INFO L450 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-07-24 12:10:17,351 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-07-24 12:10:17,351 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-07-24 12:10:17,352 INFO L87 Difference]: Start difference. First operand 759 states and 1355 transitions. Second operand 3 states. [2018-07-24 12:10:23,877 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-24 12:10:23,877 INFO L93 Difference]: Finished difference Result 2135 states and 3917 transitions. [2018-07-24 12:10:23,878 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-07-24 12:10:23,878 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 94 [2018-07-24 12:10:23,879 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-24 12:10:23,889 INFO L225 Difference]: With dead ends: 2135 [2018-07-24 12:10:23,889 INFO L226 Difference]: Without dead ends: 1382 [2018-07-24 12:10:23,895 INFO L573 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-07-24 12:10:23,897 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1382 states. [2018-07-24 12:10:23,960 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1382 to 1379. [2018-07-24 12:10:23,960 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1379 states. [2018-07-24 12:10:23,969 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1379 states to 1379 states and 2119 transitions. [2018-07-24 12:10:23,970 INFO L78 Accepts]: Start accepts. Automaton has 1379 states and 2119 transitions. Word has length 94 [2018-07-24 12:10:23,970 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-24 12:10:23,970 INFO L471 AbstractCegarLoop]: Abstraction has 1379 states and 2119 transitions. [2018-07-24 12:10:23,971 INFO L472 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-07-24 12:10:23,971 INFO L276 IsEmpty]: Start isEmpty. Operand 1379 states and 2119 transitions. [2018-07-24 12:10:23,980 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2018-07-24 12:10:23,981 INFO L345 BasicCegarLoop]: Found error trace [2018-07-24 12:10:23,981 INFO L353 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-07-24 12:10:23,981 INFO L414 AbstractCegarLoop]: === Iteration 3 === [__U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___false_unreach_call_c__calculate_outputErr0AssertViolationERROR_FUNCTION]=== [2018-07-24 12:10:23,982 INFO L82 PathProgramCache]: Analyzing trace with hash -381220361, now seen corresponding path program 1 times [2018-07-24 12:10:23,982 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-07-24 12:10:23,983 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 12:10:23,983 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 12:10:23,983 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 12:10:23,983 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-07-24 12:10:24,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 12:10:24,185 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 17 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-24 12:10:24,185 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-24 12:10:24,186 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-07-24 12:10:24,186 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-07-24 12:10:24,186 INFO L450 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-07-24 12:10:24,187 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-07-24 12:10:24,187 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2018-07-24 12:10:24,187 INFO L87 Difference]: Start difference. First operand 1379 states and 2119 transitions. Second operand 6 states. [2018-07-24 12:10:35,097 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-24 12:10:35,097 INFO L93 Difference]: Finished difference Result 4125 states and 6421 transitions. [2018-07-24 12:10:35,100 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2018-07-24 12:10:35,101 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 111 [2018-07-24 12:10:35,102 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-24 12:10:35,125 INFO L225 Difference]: With dead ends: 4125 [2018-07-24 12:10:35,125 INFO L226 Difference]: Without dead ends: 2752 [2018-07-24 12:10:35,133 INFO L573 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=32, Invalid=58, Unknown=0, NotChecked=0, Total=90 [2018-07-24 12:10:35,137 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2752 states. [2018-07-24 12:10:35,227 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2752 to 2716. [2018-07-24 12:10:35,228 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2716 states. [2018-07-24 12:10:35,244 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2716 states to 2716 states and 3759 transitions. [2018-07-24 12:10:35,244 INFO L78 Accepts]: Start accepts. Automaton has 2716 states and 3759 transitions. Word has length 111 [2018-07-24 12:10:35,245 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-24 12:10:35,245 INFO L471 AbstractCegarLoop]: Abstraction has 2716 states and 3759 transitions. [2018-07-24 12:10:35,249 INFO L472 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-07-24 12:10:35,249 INFO L276 IsEmpty]: Start isEmpty. Operand 2716 states and 3759 transitions. [2018-07-24 12:10:35,262 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 300 [2018-07-24 12:10:35,262 INFO L345 BasicCegarLoop]: Found error trace [2018-07-24 12:10:35,262 INFO L353 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-07-24 12:10:35,263 INFO L414 AbstractCegarLoop]: === Iteration 4 === [__U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___false_unreach_call_c__calculate_outputErr0AssertViolationERROR_FUNCTION]=== [2018-07-24 12:10:35,263 INFO L82 PathProgramCache]: Analyzing trace with hash -347412878, now seen corresponding path program 1 times [2018-07-24 12:10:35,263 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-07-24 12:10:35,266 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 12:10:35,266 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 12:10:35,267 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 12:10:35,267 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-07-24 12:10:35,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 12:10:36,005 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 0 proven. 13 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2018-07-24 12:10:36,006 INFO L297 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-07-24 12:10:36,006 INFO L191 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-07-24 12:10:36,015 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 12:10:36,015 INFO L288 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-07-24 12:10:36,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 12:10:36,159 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-07-24 12:10:36,420 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 0 proven. 13 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2018-07-24 12:10:36,420 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-07-24 12:10:36,883 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 13 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2018-07-24 12:10:36,916 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 2 imperfect interpolant sequences. [2018-07-24 12:10:36,916 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [5, 4] total 7 [2018-07-24 12:10:36,916 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-07-24 12:10:36,920 INFO L450 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-07-24 12:10:36,921 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-07-24 12:10:36,921 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2018-07-24 12:10:36,921 INFO L87 Difference]: Start difference. First operand 2716 states and 3759 transitions. Second operand 4 states. [2018-07-24 12:10:41,878 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-24 12:10:41,878 INFO L93 Difference]: Finished difference Result 7942 states and 11291 transitions. [2018-07-24 12:10:41,878 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-07-24 12:10:41,879 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 299 [2018-07-24 12:10:41,880 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-24 12:10:41,912 INFO L225 Difference]: With dead ends: 7942 [2018-07-24 12:10:41,913 INFO L226 Difference]: Without dead ends: 5232 [2018-07-24 12:10:41,940 INFO L573 BasicCegarLoop]: 0 DeclaredPredicates, 605 GetRequests, 600 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2018-07-24 12:10:41,945 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5232 states. [2018-07-24 12:10:42,067 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5232 to 5230. [2018-07-24 12:10:42,068 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5230 states. [2018-07-24 12:10:42,086 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5230 states to 5230 states and 6932 transitions. [2018-07-24 12:10:42,087 INFO L78 Accepts]: Start accepts. Automaton has 5230 states and 6932 transitions. Word has length 299 [2018-07-24 12:10:42,088 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-24 12:10:42,088 INFO L471 AbstractCegarLoop]: Abstraction has 5230 states and 6932 transitions. [2018-07-24 12:10:42,088 INFO L472 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-07-24 12:10:42,088 INFO L276 IsEmpty]: Start isEmpty. Operand 5230 states and 6932 transitions. [2018-07-24 12:10:42,095 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 353 [2018-07-24 12:10:42,095 INFO L345 BasicCegarLoop]: Found error trace [2018-07-24 12:10:42,095 INFO L353 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-07-24 12:10:42,096 INFO L414 AbstractCegarLoop]: === Iteration 5 === [__U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___false_unreach_call_c__calculate_outputErr0AssertViolationERROR_FUNCTION]=== [2018-07-24 12:10:42,096 INFO L82 PathProgramCache]: Analyzing trace with hash -1094242774, now seen corresponding path program 1 times [2018-07-24 12:10:42,096 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-07-24 12:10:42,097 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 12:10:42,097 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 12:10:42,098 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 12:10:42,098 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-07-24 12:10:42,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 12:10:42,618 INFO L134 CoverageAnalysis]: Checked inductivity of 159 backedges. 157 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-24 12:10:42,618 INFO L297 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-07-24 12:10:42,618 INFO L191 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-07-24 12:10:42,628 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 12:10:42,629 INFO L288 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-07-24 12:10:42,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 12:10:42,766 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-07-24 12:10:42,898 INFO L134 CoverageAnalysis]: Checked inductivity of 159 backedges. 37 proven. 0 refuted. 0 times theorem prover too weak. 122 trivial. 0 not checked. [2018-07-24 12:10:42,899 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-07-24 12:10:43,097 INFO L134 CoverageAnalysis]: Checked inductivity of 159 backedges. 37 proven. 0 refuted. 0 times theorem prover too weak. 122 trivial. 0 not checked. [2018-07-24 12:10:43,129 INFO L309 seRefinementStrategy]: Constructing automaton from 2 perfect and 1 imperfect interpolant sequences. [2018-07-24 12:10:43,130 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [6] total 8 [2018-07-24 12:10:43,130 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-07-24 12:10:43,131 INFO L450 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-07-24 12:10:43,131 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-07-24 12:10:43,131 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=35, Unknown=0, NotChecked=0, Total=56 [2018-07-24 12:10:43,132 INFO L87 Difference]: Start difference. First operand 5230 states and 6932 transitions. Second operand 3 states. [2018-07-24 12:10:46,747 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-24 12:10:46,748 INFO L93 Difference]: Finished difference Result 12951 states and 18128 transitions. [2018-07-24 12:10:46,751 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-07-24 12:10:46,752 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 352 [2018-07-24 12:10:46,753 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-24 12:10:46,801 INFO L225 Difference]: With dead ends: 12951 [2018-07-24 12:10:46,802 INFO L226 Difference]: Without dead ends: 7727 [2018-07-24 12:10:46,852 INFO L573 BasicCegarLoop]: 0 DeclaredPredicates, 709 GetRequests, 703 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=21, Invalid=35, Unknown=0, NotChecked=0, Total=56 [2018-07-24 12:10:46,859 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7727 states. [2018-07-24 12:10:47,025 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7727 to 7726. [2018-07-24 12:10:47,026 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7726 states. [2018-07-24 12:10:47,053 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7726 states to 7726 states and 10473 transitions. [2018-07-24 12:10:47,054 INFO L78 Accepts]: Start accepts. Automaton has 7726 states and 10473 transitions. Word has length 352 [2018-07-24 12:10:47,055 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-24 12:10:47,055 INFO L471 AbstractCegarLoop]: Abstraction has 7726 states and 10473 transitions. [2018-07-24 12:10:47,055 INFO L472 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-07-24 12:10:47,055 INFO L276 IsEmpty]: Start isEmpty. Operand 7726 states and 10473 transitions. [2018-07-24 12:10:47,071 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 400 [2018-07-24 12:10:47,071 INFO L345 BasicCegarLoop]: Found error trace [2018-07-24 12:10:47,072 INFO L353 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-07-24 12:10:47,072 INFO L414 AbstractCegarLoop]: === Iteration 6 === [__U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___false_unreach_call_c__calculate_outputErr0AssertViolationERROR_FUNCTION]=== [2018-07-24 12:10:47,072 INFO L82 PathProgramCache]: Analyzing trace with hash 197406924, now seen corresponding path program 1 times [2018-07-24 12:10:47,072 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-07-24 12:10:47,073 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 12:10:47,073 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 12:10:47,074 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 12:10:47,074 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-07-24 12:10:47,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 12:10:47,970 INFO L134 CoverageAnalysis]: Checked inductivity of 134 backedges. 132 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-24 12:10:47,971 INFO L297 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-07-24 12:10:47,971 INFO L191 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-07-24 12:10:47,982 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 12:10:47,982 INFO L288 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-07-24 12:10:48,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 12:10:48,128 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-07-24 12:10:48,269 INFO L134 CoverageAnalysis]: Checked inductivity of 134 backedges. 132 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-24 12:10:48,269 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-07-24 12:10:48,529 INFO L134 CoverageAnalysis]: Checked inductivity of 134 backedges. 132 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-24 12:10:48,549 INFO L297 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-07-24 12:10:48,549 INFO L191 anRefinementStrategy]: Switched to InterpolantGenerator mode CVC4_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4nyu Starting monitored process 5 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk --tlimit-per=12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk --tlimit-per=12000 [2018-07-24 12:10:48,567 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 12:10:48,568 INFO L288 anRefinementStrategy]: Using traceCheck mode CVC4_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-07-24 12:10:48,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 12:10:48,867 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-07-24 12:10:48,956 INFO L134 CoverageAnalysis]: Checked inductivity of 134 backedges. 132 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-24 12:10:48,956 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-07-24 12:10:49,274 INFO L134 CoverageAnalysis]: Checked inductivity of 134 backedges. 132 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-24 12:10:49,276 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 5 imperfect interpolant sequences. [2018-07-24 12:10:49,277 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 5, 5, 5, 5] total 12 [2018-07-24 12:10:49,277 INFO L251 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-07-24 12:10:49,278 INFO L450 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-07-24 12:10:49,278 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-07-24 12:10:49,279 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=90, Unknown=0, NotChecked=0, Total=132 [2018-07-24 12:10:49,279 INFO L87 Difference]: Start difference. First operand 7726 states and 10473 transitions. Second operand 9 states. [2018-07-24 12:11:00,639 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-24 12:11:00,640 INFO L93 Difference]: Finished difference Result 20920 states and 31701 transitions. [2018-07-24 12:11:00,640 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2018-07-24 12:11:00,640 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 399 [2018-07-24 12:11:00,641 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-24 12:11:00,772 INFO L225 Difference]: With dead ends: 20920 [2018-07-24 12:11:00,773 INFO L226 Difference]: Without dead ends: 13200 [2018-07-24 12:11:00,849 INFO L573 BasicCegarLoop]: 0 DeclaredPredicates, 1622 GetRequests, 1597 SyntacticMatches, 1 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 117 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=204, Invalid=446, Unknown=0, NotChecked=0, Total=650 [2018-07-24 12:11:00,863 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13200 states. [2018-07-24 12:11:01,244 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13200 to 13133. [2018-07-24 12:11:01,244 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13133 states. [2018-07-24 12:11:01,319 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13133 states to 13133 states and 17598 transitions. [2018-07-24 12:11:01,320 INFO L78 Accepts]: Start accepts. Automaton has 13133 states and 17598 transitions. Word has length 399 [2018-07-24 12:11:01,322 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-24 12:11:01,322 INFO L471 AbstractCegarLoop]: Abstraction has 13133 states and 17598 transitions. [2018-07-24 12:11:01,322 INFO L472 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-07-24 12:11:01,323 INFO L276 IsEmpty]: Start isEmpty. Operand 13133 states and 17598 transitions. [2018-07-24 12:11:01,345 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 408 [2018-07-24 12:11:01,345 INFO L345 BasicCegarLoop]: Found error trace [2018-07-24 12:11:01,346 INFO L353 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-07-24 12:11:01,346 INFO L414 AbstractCegarLoop]: === Iteration 7 === [__U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___false_unreach_call_c__calculate_outputErr0AssertViolationERROR_FUNCTION]=== [2018-07-24 12:11:01,346 INFO L82 PathProgramCache]: Analyzing trace with hash -291843348, now seen corresponding path program 1 times [2018-07-24 12:11:01,346 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-07-24 12:11:01,347 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 12:11:01,347 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 12:11:01,348 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 12:11:01,348 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-07-24 12:11:01,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 12:11:02,257 INFO L134 CoverageAnalysis]: Checked inductivity of 314 backedges. 234 proven. 2 refuted. 0 times theorem prover too weak. 78 trivial. 0 not checked. [2018-07-24 12:11:02,258 INFO L297 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-07-24 12:11:02,258 INFO L191 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-07-24 12:11:02,266 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 12:11:02,266 INFO L288 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-07-24 12:11:02,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 12:11:02,404 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-07-24 12:11:02,894 INFO L134 CoverageAnalysis]: Checked inductivity of 314 backedges. 234 proven. 2 refuted. 0 times theorem prover too weak. 78 trivial. 0 not checked. [2018-07-24 12:11:02,895 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-07-24 12:11:03,400 INFO L134 CoverageAnalysis]: Checked inductivity of 314 backedges. 234 proven. 2 refuted. 0 times theorem prover too weak. 78 trivial. 0 not checked. [2018-07-24 12:11:03,421 INFO L297 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-07-24 12:11:03,422 INFO L191 anRefinementStrategy]: Switched to InterpolantGenerator mode CVC4_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4nyu Starting monitored process 7 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk --tlimit-per=12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk --tlimit-per=12000 [2018-07-24 12:11:03,438 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 12:11:03,439 INFO L288 anRefinementStrategy]: Using traceCheck mode CVC4_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-07-24 12:11:03,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 12:11:03,783 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-07-24 12:11:03,861 INFO L134 CoverageAnalysis]: Checked inductivity of 314 backedges. 234 proven. 2 refuted. 0 times theorem prover too weak. 78 trivial. 0 not checked. [2018-07-24 12:11:03,862 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-07-24 12:11:04,080 INFO L134 CoverageAnalysis]: Checked inductivity of 314 backedges. 234 proven. 2 refuted. 0 times theorem prover too weak. 78 trivial. 0 not checked. [2018-07-24 12:11:04,082 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 5 imperfect interpolant sequences. [2018-07-24 12:11:04,083 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 5, 5, 5, 5] total 11 [2018-07-24 12:11:04,083 INFO L251 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-07-24 12:11:04,084 INFO L450 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-07-24 12:11:04,085 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-07-24 12:11:04,085 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2018-07-24 12:11:04,085 INFO L87 Difference]: Start difference. First operand 13133 states and 17598 transitions. Second operand 9 states. [2018-07-24 12:11:13,892 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-24 12:11:13,893 INFO L93 Difference]: Finished difference Result 31410 states and 46465 transitions. [2018-07-24 12:11:13,893 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2018-07-24 12:11:13,893 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 407 [2018-07-24 12:11:13,894 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-24 12:11:14,015 INFO L225 Difference]: With dead ends: 31410 [2018-07-24 12:11:14,015 INFO L226 Difference]: Without dead ends: 18283 [2018-07-24 12:11:14,123 INFO L573 BasicCegarLoop]: 0 DeclaredPredicates, 1646 GetRequests, 1628 SyntacticMatches, 2 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 41 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=103, Invalid=203, Unknown=0, NotChecked=0, Total=306 [2018-07-24 12:11:14,140 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18283 states. [2018-07-24 12:11:14,598 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18283 to 18184. [2018-07-24 12:11:14,599 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18184 states. [2018-07-24 12:11:14,701 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18184 states to 18184 states and 24293 transitions. [2018-07-24 12:11:14,702 INFO L78 Accepts]: Start accepts. Automaton has 18184 states and 24293 transitions. Word has length 407 [2018-07-24 12:11:14,705 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-24 12:11:14,705 INFO L471 AbstractCegarLoop]: Abstraction has 18184 states and 24293 transitions. [2018-07-24 12:11:14,705 INFO L472 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-07-24 12:11:14,705 INFO L276 IsEmpty]: Start isEmpty. Operand 18184 states and 24293 transitions. [2018-07-24 12:11:14,749 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 459 [2018-07-24 12:11:14,750 INFO L345 BasicCegarLoop]: Found error trace [2018-07-24 12:11:14,750 INFO L353 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2018-07-24 12:11:14,750 INFO L414 AbstractCegarLoop]: === Iteration 8 === [__U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___false_unreach_call_c__calculate_outputErr0AssertViolationERROR_FUNCTION]=== [2018-07-24 12:11:14,751 INFO L82 PathProgramCache]: Analyzing trace with hash 1479583519, now seen corresponding path program 1 times [2018-07-24 12:11:14,751 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-07-24 12:11:14,753 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 12:11:14,753 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 12:11:14,753 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 12:11:14,753 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-07-24 12:11:14,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 12:11:15,161 INFO L134 CoverageAnalysis]: Checked inductivity of 365 backedges. 57 proven. 0 refuted. 0 times theorem prover too weak. 308 trivial. 0 not checked. [2018-07-24 12:11:15,162 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-24 12:11:15,162 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-07-24 12:11:15,162 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-07-24 12:11:15,163 INFO L450 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-07-24 12:11:15,163 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-07-24 12:11:15,163 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-07-24 12:11:15,164 INFO L87 Difference]: Start difference. First operand 18184 states and 24293 transitions. Second operand 3 states. [2018-07-24 12:11:20,223 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-24 12:11:20,223 INFO L93 Difference]: Finished difference Result 45042 states and 64226 transitions. [2018-07-24 12:11:20,223 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-07-24 12:11:20,224 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 458 [2018-07-24 12:11:20,224 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-24 12:11:20,318 INFO L225 Difference]: With dead ends: 45042 [2018-07-24 12:11:20,318 INFO L226 Difference]: Without dead ends: 22397 [2018-07-24 12:11:20,469 INFO L573 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-07-24 12:11:20,487 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22397 states. [2018-07-24 12:11:20,883 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22397 to 22368. [2018-07-24 12:11:20,884 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 22368 states. [2018-07-24 12:11:21,007 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22368 states to 22368 states and 28187 transitions. [2018-07-24 12:11:21,008 INFO L78 Accepts]: Start accepts. Automaton has 22368 states and 28187 transitions. Word has length 458 [2018-07-24 12:11:21,009 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-24 12:11:21,010 INFO L471 AbstractCegarLoop]: Abstraction has 22368 states and 28187 transitions. [2018-07-24 12:11:21,010 INFO L472 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-07-24 12:11:21,010 INFO L276 IsEmpty]: Start isEmpty. Operand 22368 states and 28187 transitions. [2018-07-24 12:11:21,117 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 579 [2018-07-24 12:11:21,117 INFO L345 BasicCegarLoop]: Found error trace [2018-07-24 12:11:21,118 INFO L353 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 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, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2018-07-24 12:11:21,118 INFO L414 AbstractCegarLoop]: === Iteration 9 === [__U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___false_unreach_call_c__calculate_outputErr0AssertViolationERROR_FUNCTION]=== [2018-07-24 12:11:21,118 INFO L82 PathProgramCache]: Analyzing trace with hash 278240861, now seen corresponding path program 1 times [2018-07-24 12:11:21,118 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-07-24 12:11:21,119 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 12:11:21,119 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 12:11:21,119 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 12:11:21,120 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-07-24 12:11:21,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 12:11:21,871 INFO L134 CoverageAnalysis]: Checked inductivity of 704 backedges. 161 proven. 166 refuted. 0 times theorem prover too weak. 377 trivial. 0 not checked. [2018-07-24 12:11:21,871 INFO L297 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-07-24 12:11:21,872 INFO L191 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 8 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-07-24 12:11:21,879 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 12:11:21,879 INFO L288 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-07-24 12:11:22,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 12:11:22,085 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-07-24 12:11:22,361 WARN L169 SmtUtils]: Spent 170.00 ms on a formula simplification. DAG size of input: 15 DAG size of output: 3 [2018-07-24 12:11:22,476 INFO L134 CoverageAnalysis]: Checked inductivity of 704 backedges. 467 proven. 0 refuted. 0 times theorem prover too weak. 237 trivial. 0 not checked. [2018-07-24 12:11:22,476 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-07-24 12:11:22,914 INFO L134 CoverageAnalysis]: Checked inductivity of 704 backedges. 81 proven. 4 refuted. 0 times theorem prover too weak. 619 trivial. 0 not checked. [2018-07-24 12:11:22,935 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 2 imperfect interpolant sequences. [2018-07-24 12:11:22,935 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [6, 3] total 7 [2018-07-24 12:11:22,936 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-07-24 12:11:22,936 INFO L450 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-07-24 12:11:22,936 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-07-24 12:11:22,936 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2018-07-24 12:11:22,937 INFO L87 Difference]: Start difference. First operand 22368 states and 28187 transitions. Second operand 3 states. [2018-07-24 12:11:27,266 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-24 12:11:27,266 INFO L93 Difference]: Finished difference Result 58351 states and 79032 transitions. [2018-07-24 12:11:27,267 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-07-24 12:11:27,267 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 578 [2018-07-24 12:11:27,267 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-24 12:11:27,474 INFO L225 Difference]: With dead ends: 58351 [2018-07-24 12:11:27,474 INFO L226 Difference]: Without dead ends: 35989 [2018-07-24 12:11:27,673 INFO L573 BasicCegarLoop]: 0 DeclaredPredicates, 1161 GetRequests, 1156 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2018-07-24 12:11:27,704 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35989 states. [2018-07-24 12:11:28,400 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35989 to 35973. [2018-07-24 12:11:28,400 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 35973 states. [2018-07-24 12:11:28,645 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35973 states to 35973 states and 45566 transitions. [2018-07-24 12:11:28,647 INFO L78 Accepts]: Start accepts. Automaton has 35973 states and 45566 transitions. Word has length 578 [2018-07-24 12:11:28,647 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-24 12:11:28,647 INFO L471 AbstractCegarLoop]: Abstraction has 35973 states and 45566 transitions. [2018-07-24 12:11:28,648 INFO L472 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-07-24 12:11:28,648 INFO L276 IsEmpty]: Start isEmpty. Operand 35973 states and 45566 transitions. [2018-07-24 12:11:28,844 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 605 [2018-07-24 12:11:28,844 INFO L345 BasicCegarLoop]: Found error trace [2018-07-24 12:11:28,845 INFO L353 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-07-24 12:11:28,845 INFO L414 AbstractCegarLoop]: === Iteration 10 === [__U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___false_unreach_call_c__calculate_outputErr0AssertViolationERROR_FUNCTION]=== [2018-07-24 12:11:28,845 INFO L82 PathProgramCache]: Analyzing trace with hash -859927833, now seen corresponding path program 1 times [2018-07-24 12:11:28,845 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-07-24 12:11:28,847 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 12:11:28,847 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 12:11:28,847 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 12:11:28,847 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-07-24 12:11:28,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 12:11:29,633 WARN L169 SmtUtils]: Spent 401.00 ms on a formula simplification. DAG size of input: 18 DAG size of output: 12 [2018-07-24 12:11:29,967 WARN L169 SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 11 [2018-07-24 12:11:30,664 INFO L134 CoverageAnalysis]: Checked inductivity of 414 backedges. 51 proven. 272 refuted. 0 times theorem prover too weak. 91 trivial. 0 not checked. [2018-07-24 12:11:30,665 INFO L297 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-07-24 12:11:30,665 INFO L191 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 9 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 9 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-07-24 12:11:30,673 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 12:11:30,673 INFO L288 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-07-24 12:11:30,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 12:11:30,897 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-07-24 12:11:31,366 INFO L134 CoverageAnalysis]: Checked inductivity of 414 backedges. 297 proven. 0 refuted. 0 times theorem prover too weak. 117 trivial. 0 not checked. [2018-07-24 12:11:31,366 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-07-24 12:11:32,986 INFO L134 CoverageAnalysis]: Checked inductivity of 414 backedges. 51 proven. 272 refuted. 0 times theorem prover too weak. 91 trivial. 0 not checked. [2018-07-24 12:11:33,008 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 2 imperfect interpolant sequences. [2018-07-24 12:11:33,008 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [6, 5] total 11 [2018-07-24 12:11:33,008 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-07-24 12:11:33,009 INFO L450 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-07-24 12:11:33,009 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-07-24 12:11:33,009 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=81, Unknown=0, NotChecked=0, Total=110 [2018-07-24 12:11:33,009 INFO L87 Difference]: Start difference. First operand 35973 states and 45566 transitions. Second operand 5 states. [2018-07-24 12:11:42,880 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-24 12:11:42,881 INFO L93 Difference]: Finished difference Result 86935 states and 114740 transitions. [2018-07-24 12:11:42,881 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-07-24 12:11:42,881 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 604 [2018-07-24 12:11:42,882 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-24 12:11:43,199 INFO L225 Difference]: With dead ends: 86935 [2018-07-24 12:11:43,199 INFO L226 Difference]: Without dead ends: 50968 [2018-07-24 12:11:43,480 INFO L573 BasicCegarLoop]: 0 DeclaredPredicates, 1216 GetRequests, 1203 SyntacticMatches, 2 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=42, Invalid=114, Unknown=0, NotChecked=0, Total=156 [2018-07-24 12:11:43,519 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 50968 states. [2018-07-24 12:11:44,513 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 50968 to 48211. [2018-07-24 12:11:44,514 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 48211 states. [2018-07-24 12:11:44,770 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48211 states to 48211 states and 59172 transitions. [2018-07-24 12:11:44,771 INFO L78 Accepts]: Start accepts. Automaton has 48211 states and 59172 transitions. Word has length 604 [2018-07-24 12:11:44,772 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-24 12:11:44,772 INFO L471 AbstractCegarLoop]: Abstraction has 48211 states and 59172 transitions. [2018-07-24 12:11:44,772 INFO L472 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-07-24 12:11:44,772 INFO L276 IsEmpty]: Start isEmpty. Operand 48211 states and 59172 transitions. [2018-07-24 12:11:44,858 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 710 [2018-07-24 12:11:44,858 INFO L345 BasicCegarLoop]: Found error trace [2018-07-24 12:11:44,859 INFO L353 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2018-07-24 12:11:44,859 INFO L414 AbstractCegarLoop]: === Iteration 11 === [__U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___false_unreach_call_c__calculate_outputErr0AssertViolationERROR_FUNCTION]=== [2018-07-24 12:11:44,860 INFO L82 PathProgramCache]: Analyzing trace with hash 864096864, now seen corresponding path program 1 times [2018-07-24 12:11:44,860 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-07-24 12:11:44,860 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 12:11:44,861 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 12:11:44,861 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 12:11:44,861 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-07-24 12:11:44,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 12:11:46,047 INFO L134 CoverageAnalysis]: Checked inductivity of 550 backedges. 55 proven. 13 refuted. 0 times theorem prover too weak. 482 trivial. 0 not checked. [2018-07-24 12:11:46,048 INFO L297 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-07-24 12:11:46,048 INFO L191 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 10 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 10 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-07-24 12:11:46,056 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 12:11:46,057 INFO L288 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-07-24 12:11:46,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 12:11:46,307 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-07-24 12:12:06,557 WARN L169 SmtUtils]: Spent 19.97 s on a formula simplification. DAG size of input: 388 DAG size of output: 45 [2018-07-24 12:12:06,918 INFO L134 CoverageAnalysis]: Checked inductivity of 550 backedges. 439 proven. 2 refuted. 0 times theorem prover too weak. 109 trivial. 0 not checked. [2018-07-24 12:12:06,918 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-07-24 12:12:07,800 INFO L134 CoverageAnalysis]: Checked inductivity of 550 backedges. 439 proven. 2 refuted. 0 times theorem prover too weak. 109 trivial. 0 not checked. [2018-07-24 12:12:08,076 INFO L297 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-07-24 12:12:08,076 INFO L191 anRefinementStrategy]: Switched to InterpolantGenerator mode CVC4_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4nyu Starting monitored process 11 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk --tlimit-per=12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 11 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk --tlimit-per=12000 [2018-07-24 12:12:08,093 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 12:12:08,093 INFO L288 anRefinementStrategy]: Using traceCheck mode CVC4_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-07-24 12:12:08,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 12:12:08,654 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-07-24 12:12:31,030 WARN L169 SmtUtils]: Spent 22.17 s on a formula simplification that was a NOOP. DAG size: 59 [2018-07-24 12:12:39,165 WARN L169 SmtUtils]: Spent 6.08 s on a formula simplification. DAG size of input: 60 DAG size of output: 31 [2018-07-24 12:12:39,709 INFO L134 CoverageAnalysis]: Checked inductivity of 550 backedges. 421 proven. 111 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2018-07-24 12:12:39,709 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-07-24 12:12:40,209 WARN L169 SmtUtils]: Spent 113.00 ms on a formula simplification that was a NOOP. DAG size: 14 [2018-07-24 12:12:52,588 WARN L169 SmtUtils]: Spent 12.09 s on a formula simplification. DAG size of input: 61 DAG size of output: 30 [2018-07-24 12:12:56,873 WARN L169 SmtUtils]: Spent 2.10 s on a formula simplification that was a NOOP. DAG size: 48 [2018-07-24 12:12:56,878 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 12:12:56,989 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 18 [2018-07-24 12:13:36,287 WARN L169 SmtUtils]: Spent 37.22 s on a formula simplification. DAG size of input: 84 DAG size of output: 76 [2018-07-24 12:13:36,293 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 12:13:36,300 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 12:13:36,307 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 12:13:36,314 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 12:13:36,320 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 12:13:36,327 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 12:13:36,333 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 12:13:36,340 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 12:13:36,346 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 12:13:36,353 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 12:13:36,359 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 12:13:36,365 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 12:13:36,372 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 12:13:36,378 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 12:13:36,384 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 12:13:36,390 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 12:13:36,396 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 12:13:36,401 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 12:13:36,407 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 12:13:36,413 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 12:13:36,418 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 12:13:36,423 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 12:13:36,429 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 12:13:36,434 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 12:13:36,440 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 12:13:36,445 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 12:13:36,451 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 12:13:36,456 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 12:13:36,462 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 12:13:36,467 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 12:13:36,473 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 12:13:36,478 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 12:13:36,484 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 12:13:36,490 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 12:13:36,495 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 12:13:36,501 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 12:13:36,506 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 12:13:36,511 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 12:13:36,517 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 12:13:36,523 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 12:13:36,528 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 12:13:36,534 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 12:13:36,539 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 12:13:36,545 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 12:13:36,550 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 12:13:36,556 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 12:13:36,561 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 12:13:36,567 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 12:13:36,572 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 12:13:36,578 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 12:13:36,584 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 12:13:36,590 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 12:13:36,596 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 12:13:36,602 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 12:13:36,607 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 12:13:36,613 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 12:13:36,618 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 12:13:36,624 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 12:13:36,629 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 12:13:36,635 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 12:13:36,640 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 12:13:36,645 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 12:13:36,651 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 12:13:36,656 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 12:13:36,662 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 12:13:36,667 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 12:13:36,672 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 12:13:36,678 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 12:13:36,683 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 12:13:36,689 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 12:13:36,694 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 12:13:36,699 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 12:13:36,705 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 12:13:36,710 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 12:13:36,715 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 12:13:36,721 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 12:13:36,726 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 12:13:36,732 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 12:13:36,738 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 12:13:36,743 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 12:13:36,748 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 12:13:36,754 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 12:13:36,759 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 12:13:36,764 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 12:13:36,769 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 12:13:36,774 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 12:13:36,780 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 12:13:36,785 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 12:13:36,790 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 12:13:36,796 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 12:13:36,801 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 12:13:36,806 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 12:13:36,811 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 12:13:36,816 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 12:13:36,822 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 12:13:36,827 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 12:13:36,833 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 12:13:36,838 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 12:13:36,843 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 12:13:36,848 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 12:13:36,853 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 12:13:36,858 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 12:13:36,863 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 12:13:36,869 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 12:13:36,874 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 12:13:36,879 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 12:13:36,885 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 12:13:36,890 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 12:13:36,895 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 12:13:36,901 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 12:13:36,906 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 12:13:36,911 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 12:13:36,916 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 12:13:36,922 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 12:13:36,927 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 12:13:36,933 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 12:13:36,938 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 12:13:36,943 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 12:13:36,948 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 12:13:36,953 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 12:13:36,958 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 12:13:36,963 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 12:13:36,968 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 12:13:36,973 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 12:13:36,978 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 12:13:36,984 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 12:13:36,989 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 12:13:36,993 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 12:13:36,998 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 12:13:37,003 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 12:13:37,008 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 12:13:37,014 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 12:13:37,019 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 12:13:37,024 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 12:13:37,029 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 12:13:37,035 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 12:13:37,040 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 12:13:37,045 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 12:13:37,050 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 12:13:37,056 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 12:13:37,061 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 12:13:37,066 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 12:13:37,071 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 12:13:37,077 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 12:13:37,082 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 12:13:37,087 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 12:13:37,093 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 12:13:37,099 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 12:13:37,104 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 12:13:37,109 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 12:13:37,114 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 12:13:37,120 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 12:13:37,125 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 12:13:37,130 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 12:13:37,135 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 12:13:37,140 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 12:13:37,145 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 12:13:37,150 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 12:13:37,156 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 12:13:37,161 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 12:13:37,166 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 12:13:37,171 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 12:13:37,176 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 12:13:37,181 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 12:13:37,186 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 12:13:37,191 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 12:13:37,197 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 12:13:37,202 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 12:13:37,207 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 12:13:37,212 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 12:13:37,217 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 12:13:37,222 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 12:13:37,227 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 12:13:37,232 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 12:13:37,237 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 12:13:37,242 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 12:13:37,248 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 12:13:37,253 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 12:13:37,258 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 12:13:37,263 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 12:13:37,269 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 12:13:37,274 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 12:13:37,280 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 12:13:37,285 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 12:13:37,290 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 12:13:37,296 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 12:13:37,302 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 12:13:37,307 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 12:13:37,312 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 12:13:37,317 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 12:13:37,323 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 12:13:37,328 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 12:13:37,334 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 12:13:37,339 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 12:13:37,345 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 12:13:37,350 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 12:13:37,355 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 12:13:37,361 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 12:13:37,367 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 12:13:37,372 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 12:13:37,377 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 12:13:37,383 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 12:13:37,388 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 12:13:37,393 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 12:13:37,399 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 12:13:37,404 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 12:13:37,409 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 12:13:37,415 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 12:13:37,420 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 12:13:37,425 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 12:13:37,431 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 12:13:37,436 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 12:13:37,441 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 12:13:37,446 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 12:13:37,452 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 12:13:37,457 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 12:13:37,462 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 12:13:37,467 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 12:13:37,473 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 12:13:37,479 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 12:13:37,484 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 12:13:37,490 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 12:13:37,495 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 12:13:37,500 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 12:13:37,506 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 12:13:37,512 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 12:13:37,519 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 12:13:37,524 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 12:13:37,529 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 12:13:37,534 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 12:13:37,539 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 12:13:37,544 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 12:13:37,549 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 12:13:37,554 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 12:13:37,559 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 12:13:37,564 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 12:13:37,568 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 12:13:37,573 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 12:13:37,578 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 12:13:37,583 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 12:13:37,589 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 12:13:37,594 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 12:13:37,599 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 12:13:37,603 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 12:13:37,608 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 12:13:37,614 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 12:13:37,619 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 12:13:37,625 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 12:13:37,630 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 12:13:37,636 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 12:13:37,641 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 12:13:37,647 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 12:13:37,651 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 12:13:37,656 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 12:13:37,663 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 12:13:37,669 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 12:13:37,674 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 12:13:37,679 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 12:13:37,685 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 12:13:37,690 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 12:13:37,696 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 12:13:37,701 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 12:13:37,705 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 12:13:37,710 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 12:13:37,715 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 12:13:37,721 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 12:13:37,726 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 12:13:49,158 WARN L169 SmtUtils]: Spent 4.49 s on a formula simplification that was a NOOP. DAG size: 72 [2018-07-24 12:13:56,619 INFO L134 CoverageAnalysis]: Checked inductivity of 550 backedges. 57 proven. 488 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2018-07-24 12:13:56,622 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 5 imperfect interpolant sequences. [2018-07-24 12:13:56,623 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 5, 5, 9, 10] total 24 [2018-07-24 12:13:56,623 INFO L251 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-07-24 12:13:56,624 INFO L450 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-07-24 12:13:56,624 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-07-24 12:13:56,624 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=76, Invalid=469, Unknown=7, NotChecked=0, Total=552 [2018-07-24 12:13:56,624 INFO L87 Difference]: Start difference. First operand 48211 states and 59172 transitions. Second operand 9 states. [2018-07-24 12:14:02,881 WARN L169 SmtUtils]: Spent 4.05 s on a formula simplification that was a NOOP. DAG size: 48 Received shutdown request... [2018-07-24 12:14:08,148 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-07-24 12:14:08,148 WARN L540 AbstractCegarLoop]: Verification canceled [2018-07-24 12:14:08,154 WARN L202 ceAbstractionStarter]: Timeout [2018-07-24 12:14:08,154 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.07 12:14:08 BoogieIcfgContainer [2018-07-24 12:14:08,154 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-07-24 12:14:08,155 INFO L168 Benchmark]: Toolchain (without parser) took 248917.68 ms. Allocated memory was 1.5 GB in the beginning and 3.9 GB in the end (delta: 2.4 GB). Free memory was 1.4 GB in the beginning and 1.4 GB in the end (delta: -72.0 MB). Peak memory consumption was 2.3 GB. Max. memory is 7.1 GB. [2018-07-24 12:14:08,156 INFO L168 Benchmark]: CDTParser took 0.22 ms. Allocated memory is still 1.5 GB. Free memory is still 1.4 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-07-24 12:14:08,157 INFO L168 Benchmark]: CACSL2BoogieTranslator took 1396.12 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.3 GB in the end (delta: 116.3 MB). Peak memory consumption was 116.3 MB. Max. memory is 7.1 GB. [2018-07-24 12:14:08,158 INFO L168 Benchmark]: Boogie Procedure Inliner took 221.55 ms. Allocated memory is still 1.5 GB. Free memory was 1.3 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. [2018-07-24 12:14:08,159 INFO L168 Benchmark]: Boogie Preprocessor took 642.28 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 844.1 MB). Free memory was 1.2 GB in the beginning and 2.2 GB in the end (delta: -1.0 GB). Peak memory consumption was 89.8 MB. Max. memory is 7.1 GB. [2018-07-24 12:14:08,160 INFO L168 Benchmark]: RCFGBuilder took 6908.89 ms. Allocated memory is still 2.3 GB. Free memory was 2.2 GB in the beginning and 1.9 GB in the end (delta: 318.1 MB). Peak memory consumption was 318.1 MB. Max. memory is 7.1 GB. [2018-07-24 12:14:08,161 INFO L168 Benchmark]: TraceAbstraction took 239744.19 ms. Allocated memory was 2.3 GB in the beginning and 3.9 GB in the end (delta: 1.6 GB). Free memory was 1.9 GB in the beginning and 1.4 GB in the end (delta: 453.0 MB). Peak memory consumption was 2.0 GB. Max. memory is 7.1 GB. [2018-07-24 12:14:08,166 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22 ms. Allocated memory is still 1.5 GB. Free memory is still 1.4 GB. There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 1396.12 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.3 GB in the end (delta: 116.3 MB). Peak memory consumption was 116.3 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 221.55 ms. Allocated memory is still 1.5 GB. Free memory was 1.3 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 642.28 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 844.1 MB). Free memory was 1.2 GB in the beginning and 2.2 GB in the end (delta: -1.0 GB). Peak memory consumption was 89.8 MB. Max. memory is 7.1 GB. * RCFGBuilder took 6908.89 ms. Allocated memory is still 2.3 GB. Free memory was 2.2 GB in the beginning and 1.9 GB in the end (delta: 318.1 MB). Peak memory consumption was 318.1 MB. Max. memory is 7.1 GB. * TraceAbstraction took 239744.19 ms. Allocated memory was 2.3 GB in the beginning and 3.9 GB in the end (delta: 1.6 GB). Free memory was 1.9 GB in the beginning and 1.4 GB in the end (delta: 453.0 MB). Peak memory consumption was 2.0 GB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResultAtElement [Line: 58]: Timeout (TraceAbstraction) Unable to prove that call of __VERIFIER_error() unreachable (line 58). Cancelled while BasicCegarLoop was constructing difference of abstraction (48211states) and interpolant automaton (currently 8 states, 9 states before enhancement), while ReachableStatesComputation was computing reachable states (5209 states constructedinput type IntersectNwa). - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 438 locations, 1 error locations. TIMEOUT Result, 239.6s OverallTime, 11 OverallIterations, 5 TraceHistogramMax, 87.8s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 2987 SDtfs, 12041 SDslu, 2202 SDs, 0 SdLazy, 23728 SolverSat, 5306 SolverUnsat, 4 SolverUnknown, 0 SolverNotchecked, 70.4s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 9838 GetRequests, 9721 SyntacticMatches, 13 SemanticMatches, 104 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 418 ImplicationChecksByTransitivity, 129.9s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=48211occurred in iteration=10, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s AbstIntTime, 0 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 4.4s AutomataMinimizationTime, 10 MinimizatonAttempts, 3365 StatesRemovedByMinimization, 10 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.4s SsaConstructionTime, 2.7s SatisfiabilityAnalysisTime, 140.4s InterpolantComputationTime, 8898 NumberOfCodeBlocks, 8898 NumberOfCodeBlocksAsserted, 21 NumberOfCheckSat, 13730 ConstructedInterpolants, 292 QuantifiedInterpolants, 58690801 SizeOfPredicates, 12 NumberOfNonLiveVariables, 6973 ConjunctsInSsa, 81 ConjunctsInUnsatCore, 31 InterpolantComputations, 9 PerfectInterpolantSequences, 7893/9271 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/Problem15_label23_false-unreach-call.c_svcomp-Reach-64bit-RubberTaipan_Default-OldIcfg.epf_AutomizerCInline.xml/Csv-Benchmark-0-2018-07-24_12-14-08-182.csv Written .csv to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/csv/Problem15_label23_false-unreach-call.c_svcomp-Reach-64bit-RubberTaipan_Default-OldIcfg.epf_AutomizerCInline.xml/Csv-TraceAbstractionBenchmarks-0-2018-07-24_12-14-08-182.csv Completed graceful shutdown