java -Xmx8000000000 -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data --generate-csv --csv-dir csv -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -s ../../../trunk/examples/settings/ai/taipanbench/svcomp-Reach-64bit-RubberTaipan_Default-OldIcfg.epf -i ../../../trunk/examples/svcomp/eca-rers2012/Problem11_label24_true-unreach-call.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-3142e50-m [2018-09-10 11:35:32,646 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-09-10 11:35:32,649 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-09-10 11:35:32,661 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-09-10 11:35:32,661 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-09-10 11:35:32,662 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-09-10 11:35:32,664 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-09-10 11:35:32,665 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-09-10 11:35:32,667 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-09-10 11:35:32,668 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-09-10 11:35:32,669 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-09-10 11:35:32,669 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-09-10 11:35:32,670 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-09-10 11:35:32,671 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-09-10 11:35:32,672 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-09-10 11:35:32,673 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-09-10 11:35:32,674 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-09-10 11:35:32,676 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-09-10 11:35:32,678 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-09-10 11:35:32,679 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-09-10 11:35:32,681 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-09-10 11:35:32,682 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-09-10 11:35:32,684 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-09-10 11:35:32,684 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-09-10 11:35:32,684 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-09-10 11:35:32,685 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-09-10 11:35:32,686 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-09-10 11:35:32,687 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-09-10 11:35:32,688 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-09-10 11:35:32,689 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-09-10 11:35:32,689 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-09-10 11:35:32,690 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-09-10 11:35:32,690 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-09-10 11:35:32,690 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-09-10 11:35:32,691 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-09-10 11:35:32,692 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-09-10 11:35:32,692 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 [2018-09-10 11:35:32,718 INFO L110 SettingsManager]: Loading preferences was successful [2018-09-10 11:35:32,718 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-09-10 11:35:32,720 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-09-10 11:35:32,720 INFO L133 SettingsManager]: * User list type=DISABLED [2018-09-10 11:35:32,721 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-09-10 11:35:32,721 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-09-10 11:35:32,721 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-09-10 11:35:32,721 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-09-10 11:35:32,721 INFO L133 SettingsManager]: * Log string format=TERM [2018-09-10 11:35:32,722 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-09-10 11:35:32,722 INFO L133 SettingsManager]: * Interval Domain=false [2018-09-10 11:35:32,723 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-09-10 11:35:32,723 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-09-10 11:35:32,723 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-09-10 11:35:32,723 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-09-10 11:35:32,723 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-09-10 11:35:32,724 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-09-10 11:35:32,725 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-09-10 11:35:32,725 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-09-10 11:35:32,725 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-09-10 11:35:32,725 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-09-10 11:35:32,726 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-09-10 11:35:32,726 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-09-10 11:35:32,726 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-09-10 11:35:32,726 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-09-10 11:35:32,727 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-09-10 11:35:32,727 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-09-10 11:35:32,727 INFO L133 SettingsManager]: * Trace refinement strategy=RUBBER_TAIPAN [2018-09-10 11:35:32,727 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-09-10 11:35:32,727 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-09-10 11:35:32,728 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-09-10 11:35:32,728 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-09-10 11:35:32,728 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-09-10 11:35:32,790 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-09-10 11:35:32,808 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-09-10 11:35:32,814 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-09-10 11:35:32,816 INFO L271 PluginConnector]: Initializing CDTParser... [2018-09-10 11:35:32,817 INFO L276 PluginConnector]: CDTParser initialized [2018-09-10 11:35:32,817 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem11_label24_true-unreach-call.c [2018-09-10 11:35:33,168 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/56596a98e/56fc965bcb2940209a9ec16b32453ea2/FLAG13f3fdf94 [2018-09-10 11:35:33,506 INFO L276 CDTParser]: Found 1 translation units. [2018-09-10 11:35:33,507 INFO L158 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem11_label24_true-unreach-call.c [2018-09-10 11:35:33,526 INFO L324 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/56596a98e/56fc965bcb2940209a9ec16b32453ea2/FLAG13f3fdf94 [2018-09-10 11:35:33,553 INFO L332 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/56596a98e/56fc965bcb2940209a9ec16b32453ea2 [2018-09-10 11:35:33,565 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-09-10 11:35:33,568 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-09-10 11:35:33,569 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-09-10 11:35:33,569 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-09-10 11:35:33,577 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-09-10 11:35:33,579 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.09 11:35:33" (1/1) ... [2018-09-10 11:35:33,582 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4730033e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 11:35:33, skipping insertion in model container [2018-09-10 11:35:33,583 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.09 11:35:33" (1/1) ... [2018-09-10 11:35:33,833 INFO L180 PRDispatcher]: Starting pre-run dispatcher in SV-COMP mode [2018-09-10 11:35:34,305 INFO L175 PostProcessor]: Settings: Checked method=main [2018-09-10 11:35:34,326 INFO L431 MainDispatcher]: Starting main dispatcher in SV-COMP mode [2018-09-10 11:35:34,505 INFO L175 PostProcessor]: Settings: Checked method=main [2018-09-10 11:35:34,584 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 11:35:34 WrapperNode [2018-09-10 11:35:34,584 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-09-10 11:35:34,585 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-09-10 11:35:34,585 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-09-10 11:35:34,586 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-09-10 11:35:34,596 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 11:35:34" (1/1) ... [2018-09-10 11:35:34,651 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 11:35:34" (1/1) ... [2018-09-10 11:35:34,780 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-09-10 11:35:34,781 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-09-10 11:35:34,781 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-09-10 11:35:34,781 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-09-10 11:35:34,792 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 11:35:34" (1/1) ... [2018-09-10 11:35:34,792 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 11:35:34" (1/1) ... [2018-09-10 11:35:34,799 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 11:35:34" (1/1) ... [2018-09-10 11:35:34,800 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 11:35:34" (1/1) ... [2018-09-10 11:35:35,082 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 11:35:34" (1/1) ... [2018-09-10 11:35:35,107 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 11:35:34" (1/1) ... [2018-09-10 11:35:35,122 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 11:35:34" (1/1) ... [2018-09-10 11:35:35,135 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-09-10 11:35:35,135 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-09-10 11:35:35,136 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-09-10 11:35:35,136 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-09-10 11:35:35,137 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 11:35:34" (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 [2018-09-10 11:35:35,212 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-09-10 11:35:35,212 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-09-10 11:35:35,213 INFO L130 BoogieDeclarations]: Found specification of procedure __U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___true_unreach_call_c__calculate_output [2018-09-10 11:35:35,213 INFO L138 BoogieDeclarations]: Found implementation of procedure __U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___true_unreach_call_c__calculate_output [2018-09-10 11:35:35,214 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-09-10 11:35:35,214 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-09-10 11:35:35,214 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-09-10 11:35:35,214 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-09-10 11:35:40,952 INFO L353 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-09-10 11:35:40,953 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.09 11:35:40 BoogieIcfgContainer [2018-09-10 11:35:40,954 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-09-10 11:35:40,956 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-09-10 11:35:40,956 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-09-10 11:35:40,961 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-09-10 11:35:40,961 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 10.09 11:35:33" (1/3) ... [2018-09-10 11:35:40,962 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1b58468e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.09 11:35:40, skipping insertion in model container [2018-09-10 11:35:40,963 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 11:35:34" (2/3) ... [2018-09-10 11:35:40,963 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1b58468e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.09 11:35:40, skipping insertion in model container [2018-09-10 11:35:40,963 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.09 11:35:40" (3/3) ... [2018-09-10 11:35:40,967 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem11_label24_true-unreach-call.c [2018-09-10 11:35:40,977 INFO L137 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-09-10 11:35:40,987 INFO L149 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-09-10 11:35:41,043 INFO L130 ementStrategyFactory]: Using default assertion order modulation [2018-09-10 11:35:41,043 INFO L381 AbstractCegarLoop]: Interprodecural is true [2018-09-10 11:35:41,044 INFO L382 AbstractCegarLoop]: Hoare is true [2018-09-10 11:35:41,044 INFO L383 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-09-10 11:35:41,044 INFO L384 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-09-10 11:35:41,044 INFO L385 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-09-10 11:35:41,045 INFO L386 AbstractCegarLoop]: Difference is false [2018-09-10 11:35:41,045 INFO L387 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-09-10 11:35:41,045 INFO L392 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-09-10 11:35:41,074 INFO L276 IsEmpty]: Start isEmpty. Operand 293 states. [2018-09-10 11:35:41,084 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2018-09-10 11:35:41,085 INFO L368 BasicCegarLoop]: Found error trace [2018-09-10 11:35:41,086 INFO L376 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-10 11:35:41,087 INFO L423 AbstractCegarLoop]: === Iteration 1 === [__U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___true_unreach_call_c__calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-10 11:35:41,093 INFO L82 PathProgramCache]: Analyzing trace with hash -1684659980, now seen corresponding path program 1 times [2018-09-10 11:35:41,097 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-09-10 11:35:41,151 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-10 11:35:41,151 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-10 11:35:41,152 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-10 11:35:41,152 INFO L295 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-09-10 11:35:41,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-10 11:35:41,596 WARN L175 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 6 DAG size of output: 3 [2018-09-10 11:35:41,610 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-10 11:35:41,612 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-10 11:35:41,612 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-09-10 11:35:41,613 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-10 11:35:41,619 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-09-10 11:35:41,635 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-09-10 11:35:41,635 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-09-10 11:35:41,638 INFO L87 Difference]: Start difference. First operand 293 states. Second operand 4 states. [2018-09-10 11:35:44,918 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-10 11:35:44,919 INFO L93 Difference]: Finished difference Result 982 states and 1758 transitions. [2018-09-10 11:35:44,920 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-09-10 11:35:44,921 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 58 [2018-09-10 11:35:44,922 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-10 11:35:44,943 INFO L225 Difference]: With dead ends: 982 [2018-09-10 11:35:44,944 INFO L226 Difference]: Without dead ends: 683 [2018-09-10 11:35:44,954 INFO L604 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 [2018-09-10 11:35:44,974 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 683 states. [2018-09-10 11:35:45,046 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 683 to 683. [2018-09-10 11:35:45,048 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 683 states. [2018-09-10 11:35:45,053 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 683 states to 683 states and 1005 transitions. [2018-09-10 11:35:45,054 INFO L78 Accepts]: Start accepts. Automaton has 683 states and 1005 transitions. Word has length 58 [2018-09-10 11:35:45,055 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-10 11:35:45,055 INFO L480 AbstractCegarLoop]: Abstraction has 683 states and 1005 transitions. [2018-09-10 11:35:45,055 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-09-10 11:35:45,055 INFO L276 IsEmpty]: Start isEmpty. Operand 683 states and 1005 transitions. [2018-09-10 11:35:45,064 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2018-09-10 11:35:45,066 INFO L368 BasicCegarLoop]: Found error trace [2018-09-10 11:35:45,067 INFO L376 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-10 11:35:45,067 INFO L423 AbstractCegarLoop]: === Iteration 2 === [__U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___true_unreach_call_c__calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-10 11:35:45,068 INFO L82 PathProgramCache]: Analyzing trace with hash -704139656, now seen corresponding path program 1 times [2018-09-10 11:35:45,068 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-09-10 11:35:45,069 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-10 11:35:45,069 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-10 11:35:45,069 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-10 11:35:45,069 INFO L295 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-09-10 11:35:45,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-10 11:35:45,608 INFO L134 CoverageAnalysis]: Checked inductivity of 51 backedges. 51 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-10 11:35:45,608 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-10 11:35:45,608 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2018-09-10 11:35:45,609 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-10 11:35:45,611 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-09-10 11:35:45,611 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-09-10 11:35:45,611 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2018-09-10 11:35:45,612 INFO L87 Difference]: Start difference. First operand 683 states and 1005 transitions. Second operand 7 states. [2018-09-10 11:35:52,300 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-10 11:35:52,302 INFO L93 Difference]: Finished difference Result 1980 states and 3018 transitions. [2018-09-10 11:35:52,302 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2018-09-10 11:35:52,303 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 132 [2018-09-10 11:35:52,303 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-10 11:35:52,321 INFO L225 Difference]: With dead ends: 1980 [2018-09-10 11:35:52,322 INFO L226 Difference]: Without dead ends: 1303 [2018-09-10 11:35:52,327 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=48, Invalid=84, Unknown=0, NotChecked=0, Total=132 [2018-09-10 11:35:52,329 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1303 states. [2018-09-10 11:35:52,384 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1303 to 1246. [2018-09-10 11:35:52,384 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1246 states. [2018-09-10 11:35:52,392 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1246 states to 1246 states and 1784 transitions. [2018-09-10 11:35:52,392 INFO L78 Accepts]: Start accepts. Automaton has 1246 states and 1784 transitions. Word has length 132 [2018-09-10 11:35:52,393 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-10 11:35:52,393 INFO L480 AbstractCegarLoop]: Abstraction has 1246 states and 1784 transitions. [2018-09-10 11:35:52,393 INFO L481 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-09-10 11:35:52,393 INFO L276 IsEmpty]: Start isEmpty. Operand 1246 states and 1784 transitions. [2018-09-10 11:35:52,400 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 191 [2018-09-10 11:35:52,401 INFO L368 BasicCegarLoop]: Found error trace [2018-09-10 11:35:52,401 INFO L376 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-10 11:35:52,401 INFO L423 AbstractCegarLoop]: === Iteration 3 === [__U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___true_unreach_call_c__calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-10 11:35:52,402 INFO L82 PathProgramCache]: Analyzing trace with hash 158269423, now seen corresponding path program 1 times [2018-09-10 11:35:52,402 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-09-10 11:35:52,403 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-10 11:35:52,403 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-10 11:35:52,403 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-10 11:35:52,403 INFO L295 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-09-10 11:35:52,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-10 11:35:52,892 INFO L134 CoverageAnalysis]: Checked inductivity of 51 backedges. 45 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-10 11:35:52,893 INFO L301 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-09-10 11:35:52,893 INFO L197 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 [2018-09-10 11:35:52,905 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-10 11:35:52,906 INFO L295 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-09-10 11:35:53,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-10 11:35:53,032 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-10 11:35:53,246 INFO L134 CoverageAnalysis]: Checked inductivity of 51 backedges. 51 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-10 11:35:53,246 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-09-10 11:35:53,753 INFO L134 CoverageAnalysis]: Checked inductivity of 51 backedges. 51 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-10 11:35:53,787 INFO L313 seRefinementStrategy]: Constructing automaton from 2 perfect and 1 imperfect interpolant sequences. [2018-09-10 11:35:53,787 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [8] total 9 [2018-09-10 11:35:53,787 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-10 11:35:53,788 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-09-10 11:35:53,788 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-09-10 11:35:53,790 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2018-09-10 11:35:53,791 INFO L87 Difference]: Start difference. First operand 1246 states and 1784 transitions. Second operand 3 states. [2018-09-10 11:35:56,251 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-10 11:35:56,252 INFO L93 Difference]: Finished difference Result 2702 states and 3999 transitions. [2018-09-10 11:35:56,263 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-09-10 11:35:56,263 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 190 [2018-09-10 11:35:56,264 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-10 11:35:56,274 INFO L225 Difference]: With dead ends: 2702 [2018-09-10 11:35:56,274 INFO L226 Difference]: Without dead ends: 1462 [2018-09-10 11:35:56,280 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 389 GetRequests, 380 SyntacticMatches, 2 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2018-09-10 11:35:56,281 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1462 states. [2018-09-10 11:35:56,322 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1462 to 1459. [2018-09-10 11:35:56,323 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1459 states. [2018-09-10 11:35:56,330 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1459 states to 1459 states and 2100 transitions. [2018-09-10 11:35:56,330 INFO L78 Accepts]: Start accepts. Automaton has 1459 states and 2100 transitions. Word has length 190 [2018-09-10 11:35:56,331 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-10 11:35:56,331 INFO L480 AbstractCegarLoop]: Abstraction has 1459 states and 2100 transitions. [2018-09-10 11:35:56,332 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-09-10 11:35:56,332 INFO L276 IsEmpty]: Start isEmpty. Operand 1459 states and 2100 transitions. [2018-09-10 11:35:56,337 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 206 [2018-09-10 11:35:56,337 INFO L368 BasicCegarLoop]: Found error trace [2018-09-10 11:35:56,338 INFO L376 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-10 11:35:56,338 INFO L423 AbstractCegarLoop]: === Iteration 4 === [__U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___true_unreach_call_c__calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-10 11:35:56,338 INFO L82 PathProgramCache]: Analyzing trace with hash -1733906137, now seen corresponding path program 1 times [2018-09-10 11:35:56,339 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-09-10 11:35:56,339 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-10 11:35:56,340 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-10 11:35:56,340 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-10 11:35:56,340 INFO L295 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-09-10 11:35:56,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-10 11:35:56,593 WARN L175 SmtUtils]: Spent 123.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 4 [2018-09-10 11:35:56,681 INFO L134 CoverageAnalysis]: Checked inductivity of 175 backedges. 102 proven. 68 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2018-09-10 11:35:56,682 INFO L301 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-09-10 11:35:56,682 INFO L197 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 [2018-09-10 11:35:56,690 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-10 11:35:56,691 INFO L295 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-09-10 11:35:56,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-10 11:35:56,797 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-10 11:35:57,130 INFO L134 CoverageAnalysis]: Checked inductivity of 175 backedges. 123 proven. 0 refuted. 0 times theorem prover too weak. 52 trivial. 0 not checked. [2018-09-10 11:35:57,130 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-09-10 11:35:57,259 INFO L134 CoverageAnalysis]: Checked inductivity of 175 backedges. 102 proven. 68 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2018-09-10 11:35:57,280 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 2 imperfect interpolant sequences. [2018-09-10 11:35:57,280 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [6, 5] total 11 [2018-09-10 11:35:57,280 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-10 11:35:57,281 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-09-10 11:35:57,281 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-09-10 11:35:57,282 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2018-09-10 11:35:57,282 INFO L87 Difference]: Start difference. First operand 1459 states and 2100 transitions. Second operand 5 states. [2018-09-10 11:36:01,793 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-10 11:36:01,794 INFO L93 Difference]: Finished difference Result 5532 states and 8354 transitions. [2018-09-10 11:36:01,794 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-09-10 11:36:01,795 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 205 [2018-09-10 11:36:01,795 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-10 11:36:01,820 INFO L225 Difference]: With dead ends: 5532 [2018-09-10 11:36:01,821 INFO L226 Difference]: Without dead ends: 4079 [2018-09-10 11:36:01,832 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 419 GetRequests, 405 SyntacticMatches, 2 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 29 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=59, Invalid=123, Unknown=0, NotChecked=0, Total=182 [2018-09-10 11:36:01,835 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4079 states. [2018-09-10 11:36:01,925 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4079 to 3989. [2018-09-10 11:36:01,926 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3989 states. [2018-09-10 11:36:01,942 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3989 states to 3989 states and 5594 transitions. [2018-09-10 11:36:01,942 INFO L78 Accepts]: Start accepts. Automaton has 3989 states and 5594 transitions. Word has length 205 [2018-09-10 11:36:01,943 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-10 11:36:01,943 INFO L480 AbstractCegarLoop]: Abstraction has 3989 states and 5594 transitions. [2018-09-10 11:36:01,943 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-09-10 11:36:01,943 INFO L276 IsEmpty]: Start isEmpty. Operand 3989 states and 5594 transitions. [2018-09-10 11:36:01,949 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 250 [2018-09-10 11:36:01,949 INFO L368 BasicCegarLoop]: Found error trace [2018-09-10 11:36:01,950 INFO L376 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2018-09-10 11:36:01,950 INFO L423 AbstractCegarLoop]: === Iteration 5 === [__U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___true_unreach_call_c__calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-10 11:36:01,950 INFO L82 PathProgramCache]: Analyzing trace with hash -1151323007, now seen corresponding path program 1 times [2018-09-10 11:36:01,950 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-09-10 11:36:01,951 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-10 11:36:01,952 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-10 11:36:01,952 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-10 11:36:01,952 INFO L295 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-09-10 11:36:01,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-10 11:36:02,418 INFO L134 CoverageAnalysis]: Checked inductivity of 176 backedges. 106 proven. 70 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-10 11:36:02,418 INFO L301 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-09-10 11:36:02,418 INFO L197 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 [2018-09-10 11:36:02,426 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-10 11:36:02,426 INFO L295 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-09-10 11:36:02,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-10 11:36:02,531 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-10 11:36:04,431 WARN L175 SmtUtils]: Spent 1.58 s on a formula simplification. DAG size of input: 142 DAG size of output: 28 [2018-09-10 11:36:04,828 INFO L134 CoverageAnalysis]: Checked inductivity of 176 backedges. 174 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-10 11:36:04,828 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-09-10 11:36:05,123 WARN L175 SmtUtils]: Spent 196.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 40 [2018-09-10 11:36:06,303 INFO L134 CoverageAnalysis]: Checked inductivity of 176 backedges. 103 proven. 73 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-10 11:36:06,324 INFO L301 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-09-10 11:36:06,324 INFO L197 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 [2018-09-10 11:36:06,340 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-10 11:36:06,340 INFO L295 anRefinementStrategy]: Using traceCheck mode CVC4_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-09-10 11:36:06,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-10 11:36:06,575 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-10 11:36:07,046 INFO L134 CoverageAnalysis]: Checked inductivity of 176 backedges. 103 proven. 73 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-10 11:36:07,046 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-09-10 11:36:07,244 WARN L175 SmtUtils]: Spent 122.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 41 [2018-09-10 11:36:07,986 INFO L134 CoverageAnalysis]: Checked inductivity of 176 backedges. 174 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-10 11:36:07,990 INFO L313 seRefinementStrategy]: Constructing automaton from 0 perfect and 5 imperfect interpolant sequences. [2018-09-10 11:36:07,991 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 8, 8, 8, 5] total 28 [2018-09-10 11:36:07,991 INFO L258 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-09-10 11:36:07,993 INFO L459 AbstractCegarLoop]: Interpolant automaton has 16 states [2018-09-10 11:36:07,993 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2018-09-10 11:36:07,994 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=101, Invalid=655, Unknown=0, NotChecked=0, Total=756 [2018-09-10 11:36:07,994 INFO L87 Difference]: Start difference. First operand 3989 states and 5594 transitions. Second operand 16 states. [2018-09-10 11:36:08,272 WARN L175 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 44 DAG size of output: 41 [2018-09-10 11:36:13,224 WARN L175 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 54 [2018-09-10 11:36:36,890 WARN L175 SmtUtils]: Spent 236.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 44 [2018-09-10 11:36:43,648 WARN L175 SmtUtils]: Spent 118.00 ms on a formula simplification that was a NOOP. DAG size: 12 [2018-09-10 11:36:47,174 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-10 11:36:47,175 INFO L93 Difference]: Finished difference Result 23340 states and 38672 transitions. [2018-09-10 11:36:47,175 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 128 states. [2018-09-10 11:36:47,175 INFO L78 Accepts]: Start accepts. Automaton has 16 states. Word has length 249 [2018-09-10 11:36:47,176 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-10 11:36:47,336 INFO L225 Difference]: With dead ends: 23340 [2018-09-10 11:36:47,336 INFO L226 Difference]: Without dead ends: 19357 [2018-09-10 11:36:47,399 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 1128 GetRequests, 976 SyntacticMatches, 6 SemanticMatches, 146 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8107 ImplicationChecksByTransitivity, 10.4s TimeCoverageRelationStatistics Valid=2795, Invalid=18961, Unknown=0, NotChecked=0, Total=21756 [2018-09-10 11:36:47,413 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19357 states. [2018-09-10 11:36:48,089 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19357 to 18167. [2018-09-10 11:36:48,089 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18167 states. [2018-09-10 11:36:48,153 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18167 states to 18167 states and 23540 transitions. [2018-09-10 11:36:48,154 INFO L78 Accepts]: Start accepts. Automaton has 18167 states and 23540 transitions. Word has length 249 [2018-09-10 11:36:48,154 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-10 11:36:48,159 INFO L480 AbstractCegarLoop]: Abstraction has 18167 states and 23540 transitions. [2018-09-10 11:36:48,159 INFO L481 AbstractCegarLoop]: Interpolant automaton has 16 states. [2018-09-10 11:36:48,159 INFO L276 IsEmpty]: Start isEmpty. Operand 18167 states and 23540 transitions. [2018-09-10 11:36:48,172 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 257 [2018-09-10 11:36:48,172 INFO L368 BasicCegarLoop]: Found error trace [2018-09-10 11:36:48,172 INFO L376 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 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] [2018-09-10 11:36:48,173 INFO L423 AbstractCegarLoop]: === Iteration 6 === [__U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___true_unreach_call_c__calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-10 11:36:48,173 INFO L82 PathProgramCache]: Analyzing trace with hash 1093734570, now seen corresponding path program 1 times [2018-09-10 11:36:48,173 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-09-10 11:36:48,174 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-10 11:36:48,174 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-10 11:36:48,174 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-10 11:36:48,175 INFO L295 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-09-10 11:36:48,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-10 11:36:48,482 INFO L134 CoverageAnalysis]: Checked inductivity of 183 backedges. 105 proven. 0 refuted. 0 times theorem prover too weak. 78 trivial. 0 not checked. [2018-09-10 11:36:48,482 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-10 11:36:48,488 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-09-10 11:36:48,488 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-10 11:36:48,488 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-09-10 11:36:48,489 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-09-10 11:36:48,489 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-09-10 11:36:48,489 INFO L87 Difference]: Start difference. First operand 18167 states and 23540 transitions. Second operand 4 states. [2018-09-10 11:36:51,374 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-10 11:36:51,375 INFO L93 Difference]: Finished difference Result 40371 states and 55044 transitions. [2018-09-10 11:36:51,375 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-09-10 11:36:51,375 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 256 [2018-09-10 11:36:51,376 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-10 11:36:51,454 INFO L225 Difference]: With dead ends: 40371 [2018-09-10 11:36:51,454 INFO L226 Difference]: Without dead ends: 22210 [2018-09-10 11:36:51,534 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-09-10 11:36:51,554 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22210 states. [2018-09-10 11:36:51,975 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22210 to 22136. [2018-09-10 11:36:51,975 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 22136 states. [2018-09-10 11:36:52,035 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22136 states to 22136 states and 28367 transitions. [2018-09-10 11:36:52,035 INFO L78 Accepts]: Start accepts. Automaton has 22136 states and 28367 transitions. Word has length 256 [2018-09-10 11:36:52,036 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-10 11:36:52,036 INFO L480 AbstractCegarLoop]: Abstraction has 22136 states and 28367 transitions. [2018-09-10 11:36:52,036 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-09-10 11:36:52,036 INFO L276 IsEmpty]: Start isEmpty. Operand 22136 states and 28367 transitions. [2018-09-10 11:36:52,046 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 260 [2018-09-10 11:36:52,047 INFO L368 BasicCegarLoop]: Found error trace [2018-09-10 11:36:52,047 INFO L376 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2018-09-10 11:36:52,047 INFO L423 AbstractCegarLoop]: === Iteration 7 === [__U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___true_unreach_call_c__calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-10 11:36:52,048 INFO L82 PathProgramCache]: Analyzing trace with hash 3879949, now seen corresponding path program 1 times [2018-09-10 11:36:52,048 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-09-10 11:36:52,049 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-10 11:36:52,049 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-10 11:36:52,049 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-10 11:36:52,049 INFO L295 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-09-10 11:36:52,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-10 11:36:52,516 WARN L175 SmtUtils]: Spent 120.00 ms on a formula simplification that was a NOOP. DAG size: 12 [2018-09-10 11:36:53,089 WARN L175 SmtUtils]: Spent 128.00 ms on a formula simplification that was a NOOP. DAG size: 10 [2018-09-10 11:36:53,418 WARN L175 SmtUtils]: Spent 185.00 ms on a formula simplification that was a NOOP. DAG size: 14 [2018-09-10 11:36:53,746 INFO L134 CoverageAnalysis]: Checked inductivity of 176 backedges. 106 proven. 70 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-10 11:36:53,747 INFO L301 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-09-10 11:36:53,747 INFO L197 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 [2018-09-10 11:36:53,766 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-10 11:36:53,767 INFO L295 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-09-10 11:36:53,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-10 11:36:53,884 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-10 11:36:54,820 WARN L175 SmtUtils]: Spent 317.00 ms on a formula simplification. DAG size of input: 42 DAG size of output: 20 [2018-09-10 11:36:55,330 INFO L134 CoverageAnalysis]: Checked inductivity of 176 backedges. 103 proven. 73 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-10 11:36:55,330 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-09-10 11:36:55,571 WARN L175 SmtUtils]: Spent 152.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 41 [2018-09-10 11:36:56,295 INFO L134 CoverageAnalysis]: Checked inductivity of 176 backedges. 103 proven. 73 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-10 11:36:56,316 INFO L301 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-09-10 11:36:56,316 INFO L197 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 [2018-09-10 11:36:56,332 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-10 11:36:56,332 INFO L295 anRefinementStrategy]: Using traceCheck mode CVC4_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-09-10 11:36:56,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-10 11:36:56,712 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-10 11:36:57,795 WARN L175 SmtUtils]: Spent 175.00 ms on a formula simplification. DAG size of input: 26 DAG size of output: 23 [2018-09-10 11:36:58,042 INFO L134 CoverageAnalysis]: Checked inductivity of 176 backedges. 103 proven. 73 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-10 11:36:58,043 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-09-10 11:36:58,260 WARN L175 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 40 [2018-09-10 11:36:58,733 INFO L134 CoverageAnalysis]: Checked inductivity of 176 backedges. 174 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-10 11:36:58,735 INFO L313 seRefinementStrategy]: Constructing automaton from 0 perfect and 5 imperfect interpolant sequences. [2018-09-10 11:36:58,736 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 8, 8, 8, 5] total 28 [2018-09-10 11:36:58,736 INFO L258 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-09-10 11:36:58,736 INFO L459 AbstractCegarLoop]: Interpolant automaton has 16 states [2018-09-10 11:36:58,736 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2018-09-10 11:36:58,737 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=99, Invalid=657, Unknown=0, NotChecked=0, Total=756 [2018-09-10 11:36:58,737 INFO L87 Difference]: Start difference. First operand 22136 states and 28367 transitions. Second operand 16 states. [2018-09-10 11:37:03,064 WARN L175 SmtUtils]: Spent 1.82 s on a formula simplification. DAG size of input: 32 DAG size of output: 27 [2018-09-10 11:37:05,451 WARN L175 SmtUtils]: Spent 1.33 s on a formula simplification. DAG size of input: 43 DAG size of output: 41 [2018-09-10 11:37:05,952 WARN L175 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 43 [2018-09-10 11:37:06,404 WARN L175 SmtUtils]: Spent 375.00 ms on a formula simplification. DAG size of input: 23 DAG size of output: 21 [2018-09-10 11:37:09,049 WARN L175 SmtUtils]: Spent 1.34 s on a formula simplification. DAG size of input: 43 DAG size of output: 41 [2018-09-10 11:37:10,833 WARN L175 SmtUtils]: Spent 1.39 s on a formula simplification. DAG size of input: 48 DAG size of output: 43 [2018-09-10 11:37:14,790 WARN L175 SmtUtils]: Spent 1.56 s on a formula simplification. DAG size of input: 33 DAG size of output: 31 [2018-09-10 11:37:16,953 WARN L175 SmtUtils]: Spent 355.00 ms on a formula simplification that was a NOOP. DAG size: 39 [2018-09-10 11:37:18,525 WARN L175 SmtUtils]: Spent 685.00 ms on a formula simplification. DAG size of input: 36 DAG size of output: 31 [2018-09-10 11:37:21,560 WARN L175 SmtUtils]: Spent 1.00 s on a formula simplification. DAG size of input: 27 DAG size of output: 25 [2018-09-10 11:37:22,982 WARN L175 SmtUtils]: Spent 767.00 ms on a formula simplification. DAG size of input: 39 DAG size of output: 37 [2018-09-10 11:37:24,453 WARN L175 SmtUtils]: Spent 1.22 s on a formula simplification. DAG size of input: 37 DAG size of output: 31 [2018-09-10 11:37:30,761 WARN L175 SmtUtils]: Spent 1.38 s on a formula simplification. DAG size of input: 47 DAG size of output: 41 [2018-09-10 11:37:33,363 WARN L175 SmtUtils]: Spent 608.00 ms on a formula simplification. DAG size of input: 28 DAG size of output: 26 [2018-09-10 11:37:41,528 WARN L175 SmtUtils]: Spent 756.00 ms on a formula simplification. DAG size of input: 40 DAG size of output: 33 [2018-09-10 11:37:48,717 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-10 11:37:48,718 INFO L93 Difference]: Finished difference Result 60194 states and 88053 transitions. [2018-09-10 11:37:48,718 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 117 states. [2018-09-10 11:37:48,718 INFO L78 Accepts]: Start accepts. Automaton has 16 states. Word has length 259 [2018-09-10 11:37:48,719 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-10 11:37:48,962 INFO L225 Difference]: With dead ends: 60194 [2018-09-10 11:37:48,962 INFO L226 Difference]: Without dead ends: 38444 [2018-09-10 11:37:49,086 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 1156 GetRequests, 1015 SyntacticMatches, 6 SemanticMatches, 135 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6706 ImplicationChecksByTransitivity, 30.4s TimeCoverageRelationStatistics Valid=2544, Invalid=16083, Unknown=5, NotChecked=0, Total=18632 [2018-09-10 11:37:49,117 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38444 states. [2018-09-10 11:37:50,316 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38444 to 37432. [2018-09-10 11:37:50,316 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 37432 states. [2018-09-10 11:37:50,429 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37432 states to 37432 states and 47432 transitions. [2018-09-10 11:37:50,429 INFO L78 Accepts]: Start accepts. Automaton has 37432 states and 47432 transitions. Word has length 259 [2018-09-10 11:37:50,430 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-10 11:37:50,430 INFO L480 AbstractCegarLoop]: Abstraction has 37432 states and 47432 transitions. [2018-09-10 11:37:50,430 INFO L481 AbstractCegarLoop]: Interpolant automaton has 16 states. [2018-09-10 11:37:50,430 INFO L276 IsEmpty]: Start isEmpty. Operand 37432 states and 47432 transitions. [2018-09-10 11:37:50,443 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 261 [2018-09-10 11:37:50,443 INFO L368 BasicCegarLoop]: Found error trace [2018-09-10 11:37:50,444 INFO L376 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2018-09-10 11:37:50,444 INFO L423 AbstractCegarLoop]: === Iteration 8 === [__U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___true_unreach_call_c__calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-10 11:37:50,444 INFO L82 PathProgramCache]: Analyzing trace with hash 701848699, now seen corresponding path program 1 times [2018-09-10 11:37:50,445 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-09-10 11:37:50,445 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-10 11:37:50,446 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-10 11:37:50,446 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-10 11:37:50,446 INFO L295 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-09-10 11:37:50,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-10 11:37:50,999 INFO L134 CoverageAnalysis]: Checked inductivity of 172 backedges. 107 proven. 62 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2018-09-10 11:37:51,000 INFO L301 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-09-10 11:37:51,000 INFO L197 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 [2018-09-10 11:37:51,007 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-10 11:37:51,007 INFO L295 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-09-10 11:37:51,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-10 11:37:51,122 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-10 11:37:54,169 WARN L175 SmtUtils]: Spent 1.40 s on a formula simplification. DAG size of input: 33 DAG size of output: 25 [2018-09-10 11:37:54,279 INFO L134 CoverageAnalysis]: Checked inductivity of 172 backedges. 107 proven. 2 refuted. 0 times theorem prover too weak. 63 trivial. 0 not checked. [2018-09-10 11:37:54,280 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-09-10 11:37:54,446 INFO L134 CoverageAnalysis]: Checked inductivity of 172 backedges. 170 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-10 11:37:54,467 INFO L301 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-09-10 11:37:54,467 INFO L197 anRefinementStrategy]: Switched to InterpolantGenerator mode CVC4_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4nyu Starting monitored process 9 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 9 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk --tlimit-per=12000 [2018-09-10 11:37:54,482 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-10 11:37:54,482 INFO L295 anRefinementStrategy]: Using traceCheck mode CVC4_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-09-10 11:37:54,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-10 11:37:54,721 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-10 11:37:56,427 INFO L134 CoverageAnalysis]: Checked inductivity of 172 backedges. 103 proven. 69 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-10 11:37:56,427 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-09-10 11:37:56,529 INFO L134 CoverageAnalysis]: Checked inductivity of 172 backedges. 170 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-10 11:37:56,531 INFO L313 seRefinementStrategy]: Constructing automaton from 0 perfect and 5 imperfect interpolant sequences. [2018-09-10 11:37:56,531 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 7, 5, 8, 5] total 15 [2018-09-10 11:37:56,531 INFO L258 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-09-10 11:37:56,532 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2018-09-10 11:37:56,532 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2018-09-10 11:37:56,532 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=60, Invalid=148, Unknown=2, NotChecked=0, Total=210 [2018-09-10 11:37:56,533 INFO L87 Difference]: Start difference. First operand 37432 states and 47432 transitions. Second operand 10 states. [2018-09-10 11:38:03,403 WARN L175 SmtUtils]: Spent 3.78 s on a formula simplification. DAG size of input: 27 DAG size of output: 13 [2018-09-10 11:38:25,215 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-10 11:38:25,215 INFO L93 Difference]: Finished difference Result 92136 states and 123144 transitions. [2018-09-10 11:38:25,215 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2018-09-10 11:38:25,216 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 260 [2018-09-10 11:38:25,216 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-10 11:38:25,417 INFO L225 Difference]: With dead ends: 92136 [2018-09-10 11:38:25,417 INFO L226 Difference]: Without dead ends: 55090 [2018-09-10 11:38:25,524 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 1064 GetRequests, 1028 SyntacticMatches, 8 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 212 ImplicationChecksByTransitivity, 12.5s TimeCoverageRelationStatistics Valid=232, Invalid=634, Unknown=4, NotChecked=0, Total=870 [2018-09-10 11:38:25,561 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 55090 states. [2018-09-10 11:38:26,406 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 55090 to 53466. [2018-09-10 11:38:26,406 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 53466 states. [2018-09-10 11:38:26,553 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 53466 states to 53466 states and 69126 transitions. [2018-09-10 11:38:26,554 INFO L78 Accepts]: Start accepts. Automaton has 53466 states and 69126 transitions. Word has length 260 [2018-09-10 11:38:26,554 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-10 11:38:26,554 INFO L480 AbstractCegarLoop]: Abstraction has 53466 states and 69126 transitions. [2018-09-10 11:38:26,554 INFO L481 AbstractCegarLoop]: Interpolant automaton has 10 states. [2018-09-10 11:38:26,554 INFO L276 IsEmpty]: Start isEmpty. Operand 53466 states and 69126 transitions. [2018-09-10 11:38:26,568 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 273 [2018-09-10 11:38:26,568 INFO L368 BasicCegarLoop]: Found error trace [2018-09-10 11:38:26,568 INFO L376 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 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] [2018-09-10 11:38:26,568 INFO L423 AbstractCegarLoop]: === Iteration 9 === [__U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___true_unreach_call_c__calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-10 11:38:26,569 INFO L82 PathProgramCache]: Analyzing trace with hash -1097527773, now seen corresponding path program 1 times [2018-09-10 11:38:26,569 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-09-10 11:38:26,570 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-10 11:38:26,570 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-10 11:38:26,570 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-10 11:38:26,570 INFO L295 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-09-10 11:38:26,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-10 11:38:26,963 INFO L134 CoverageAnalysis]: Checked inductivity of 184 backedges. 8 proven. 101 refuted. 0 times theorem prover too weak. 75 trivial. 0 not checked. [2018-09-10 11:38:26,964 INFO L301 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-09-10 11:38:26,964 INFO L197 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 [2018-09-10 11:38:26,973 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-10 11:38:26,973 INFO L295 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-09-10 11:38:27,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-10 11:38:27,083 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-10 11:38:27,188 INFO L134 CoverageAnalysis]: Checked inductivity of 184 backedges. 182 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-10 11:38:27,189 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-09-10 11:38:27,469 INFO L134 CoverageAnalysis]: Checked inductivity of 184 backedges. 182 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-10 11:38:27,489 INFO L301 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-09-10 11:38:27,490 INFO L197 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 [2018-09-10 11:38:27,506 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-10 11:38:27,506 INFO L295 anRefinementStrategy]: Using traceCheck mode CVC4_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-09-10 11:38:27,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-10 11:38:27,753 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-10 11:38:27,802 INFO L134 CoverageAnalysis]: Checked inductivity of 184 backedges. 182 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-10 11:38:27,802 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-09-10 11:38:28,121 INFO L134 CoverageAnalysis]: Checked inductivity of 184 backedges. 182 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-10 11:38:28,124 INFO L313 seRefinementStrategy]: Constructing automaton from 0 perfect and 5 imperfect interpolant sequences. [2018-09-10 11:38:28,124 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 5, 5, 5, 5] total 14 [2018-09-10 11:38:28,124 INFO L258 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-09-10 11:38:28,125 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2018-09-10 11:38:28,125 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2018-09-10 11:38:28,125 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=142, Unknown=0, NotChecked=0, Total=182 [2018-09-10 11:38:28,125 INFO L87 Difference]: Start difference. First operand 53466 states and 69126 transitions. Second operand 12 states. [2018-09-10 11:38:44,376 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-10 11:38:44,376 INFO L93 Difference]: Finished difference Result 126228 states and 171788 transitions. [2018-09-10 11:38:44,377 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 70 states. [2018-09-10 11:38:44,377 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 272 [2018-09-10 11:38:44,377 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-10 11:38:44,553 INFO L225 Difference]: With dead ends: 126228 [2018-09-10 11:38:44,553 INFO L226 Difference]: Without dead ends: 73148 [2018-09-10 11:38:44,711 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 1178 GetRequests, 1106 SyntacticMatches, 0 SemanticMatches, 72 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1777 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=963, Invalid=4439, Unknown=0, NotChecked=0, Total=5402 [2018-09-10 11:38:44,758 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 73148 states. [2018-09-10 11:38:45,775 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 73148 to 69102. [2018-09-10 11:38:45,775 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 69102 states. [2018-09-10 11:38:45,979 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 69102 states to 69102 states and 85584 transitions. [2018-09-10 11:38:45,980 INFO L78 Accepts]: Start accepts. Automaton has 69102 states and 85584 transitions. Word has length 272 [2018-09-10 11:38:45,981 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-10 11:38:45,981 INFO L480 AbstractCegarLoop]: Abstraction has 69102 states and 85584 transitions. [2018-09-10 11:38:45,981 INFO L481 AbstractCegarLoop]: Interpolant automaton has 12 states. [2018-09-10 11:38:45,981 INFO L276 IsEmpty]: Start isEmpty. Operand 69102 states and 85584 transitions. [2018-09-10 11:38:46,025 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 351 [2018-09-10 11:38:46,026 INFO L368 BasicCegarLoop]: Found error trace [2018-09-10 11:38:46,026 INFO L376 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2018-09-10 11:38:46,026 INFO L423 AbstractCegarLoop]: === Iteration 10 === [__U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___true_unreach_call_c__calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-10 11:38:46,027 INFO L82 PathProgramCache]: Analyzing trace with hash -1062923265, now seen corresponding path program 1 times [2018-09-10 11:38:46,027 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-09-10 11:38:46,028 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-10 11:38:46,028 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-10 11:38:46,028 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-10 11:38:46,028 INFO L295 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-09-10 11:38:46,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-10 11:38:46,408 INFO L134 CoverageAnalysis]: Checked inductivity of 232 backedges. 105 proven. 0 refuted. 0 times theorem prover too weak. 127 trivial. 0 not checked. [2018-09-10 11:38:46,408 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-10 11:38:46,408 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-09-10 11:38:46,409 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-10 11:38:46,409 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-09-10 11:38:46,410 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-09-10 11:38:46,410 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-09-10 11:38:46,410 INFO L87 Difference]: Start difference. First operand 69102 states and 85584 transitions. Second operand 4 states. [2018-09-10 11:38:49,091 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-10 11:38:49,091 INFO L93 Difference]: Finished difference Result 137787 states and 170749 transitions. [2018-09-10 11:38:49,091 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-09-10 11:38:49,092 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 350 [2018-09-10 11:38:49,092 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-10 11:38:49,767 INFO L225 Difference]: With dead ends: 137787 [2018-09-10 11:38:49,767 INFO L226 Difference]: Without dead ends: 69071 [2018-09-10 11:38:49,845 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-09-10 11:38:49,877 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 69071 states. [2018-09-10 11:38:50,764 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 69071 to 69069. [2018-09-10 11:38:50,765 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 69069 states. [2018-09-10 11:38:50,973 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 69069 states to 69069 states and 85367 transitions. [2018-09-10 11:38:50,974 INFO L78 Accepts]: Start accepts. Automaton has 69069 states and 85367 transitions. Word has length 350 [2018-09-10 11:38:50,975 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-10 11:38:50,975 INFO L480 AbstractCegarLoop]: Abstraction has 69069 states and 85367 transitions. [2018-09-10 11:38:50,975 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-09-10 11:38:50,975 INFO L276 IsEmpty]: Start isEmpty. Operand 69069 states and 85367 transitions. [2018-09-10 11:38:51,031 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 360 [2018-09-10 11:38:51,031 INFO L368 BasicCegarLoop]: Found error trace [2018-09-10 11:38:51,031 INFO L376 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-10 11:38:51,032 INFO L423 AbstractCegarLoop]: === Iteration 11 === [__U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___true_unreach_call_c__calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-10 11:38:51,032 INFO L82 PathProgramCache]: Analyzing trace with hash 1555569344, now seen corresponding path program 1 times [2018-09-10 11:38:51,032 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-09-10 11:38:51,033 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-10 11:38:51,033 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-10 11:38:51,033 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-10 11:38:51,033 INFO L295 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-09-10 11:38:51,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-10 11:38:51,879 WARN L175 SmtUtils]: Spent 126.00 ms on a formula simplification that was a NOOP. DAG size: 15 [2018-09-10 11:38:52,571 WARN L175 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 16 [2018-09-10 11:38:53,129 WARN L175 SmtUtils]: Spent 391.00 ms on a formula simplification. DAG size of input: 19 DAG size of output: 15 [2018-09-10 11:38:53,876 INFO L134 CoverageAnalysis]: Checked inductivity of 396 backedges. 62 proven. 334 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-10 11:38:53,876 INFO L301 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-09-10 11:38:53,876 INFO L197 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 12 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 12 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-09-10 11:38:53,886 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-10 11:38:53,886 INFO L295 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-09-10 11:38:54,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-10 11:38:54,031 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-10 11:38:54,398 INFO L134 CoverageAnalysis]: Checked inductivity of 396 backedges. 342 proven. 2 refuted. 0 times theorem prover too weak. 52 trivial. 0 not checked. [2018-09-10 11:38:54,399 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-09-10 11:38:54,595 WARN L175 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 47 DAG size of output: 38 [2018-09-10 11:38:55,222 WARN L175 SmtUtils]: Spent 234.00 ms on a formula simplification. DAG size of input: 13 DAG size of output: 10 [2018-09-10 11:38:56,317 INFO L134 CoverageAnalysis]: Checked inductivity of 396 backedges. 159 proven. 232 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2018-09-10 11:38:56,337 INFO L301 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-09-10 11:38:56,338 INFO L197 anRefinementStrategy]: Switched to InterpolantGenerator mode CVC4_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4nyu Starting monitored process 13 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 13 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk --tlimit-per=12000 [2018-09-10 11:38:56,353 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-10 11:38:56,353 INFO L295 anRefinementStrategy]: Using traceCheck mode CVC4_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-09-10 11:38:56,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-10 11:38:56,657 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-10 11:38:56,834 INFO L134 CoverageAnalysis]: Checked inductivity of 396 backedges. 342 proven. 2 refuted. 0 times theorem prover too weak. 52 trivial. 0 not checked. [2018-09-10 11:38:56,835 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-09-10 11:38:57,020 WARN L175 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 47 DAG size of output: 37 [2018-09-10 11:38:57,536 INFO L134 CoverageAnalysis]: Checked inductivity of 396 backedges. 251 proven. 73 refuted. 0 times theorem prover too weak. 72 trivial. 0 not checked. [2018-09-10 11:38:57,538 INFO L313 seRefinementStrategy]: Constructing automaton from 0 perfect and 5 imperfect interpolant sequences. [2018-09-10 11:38:57,538 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 8, 8, 5, 5] total 33 [2018-09-10 11:38:57,538 INFO L258 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-09-10 11:38:57,540 INFO L459 AbstractCegarLoop]: Interpolant automaton has 23 states [2018-09-10 11:38:57,540 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2018-09-10 11:38:57,540 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=130, Invalid=926, Unknown=0, NotChecked=0, Total=1056 [2018-09-10 11:38:57,541 INFO L87 Difference]: Start difference. First operand 69069 states and 85367 transitions. Second operand 23 states. [2018-09-10 11:39:03,266 WARN L175 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 52 [2018-09-10 11:39:04,379 WARN L175 SmtUtils]: Spent 296.00 ms on a formula simplification that was a NOOP. DAG size: 36 [2018-09-10 11:39:07,356 WARN L175 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 40 [2018-09-10 11:39:08,484 WARN L175 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 50 [2018-09-10 11:39:08,758 WARN L175 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 44 [2018-09-10 11:39:11,960 WARN L175 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 49 [2018-09-10 11:39:26,948 WARN L175 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 39 Received shutdown request... [2018-09-10 11:39:35,034 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 114 states. [2018-09-10 11:39:35,034 WARN L549 AbstractCegarLoop]: Verification canceled [2018-09-10 11:39:35,040 WARN L206 ceAbstractionStarter]: Timeout [2018-09-10 11:39:35,040 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 10.09 11:39:35 BoogieIcfgContainer [2018-09-10 11:39:35,040 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-09-10 11:39:35,041 INFO L168 Benchmark]: Toolchain (without parser) took 241475.70 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 1.8 GB in the end (delta: -319.7 MB). Peak memory consumption was 2.1 GB. Max. memory is 7.1 GB. [2018-09-10 11:39:35,042 INFO L168 Benchmark]: CDTParser took 0.22 ms. Allocated memory is still 1.5 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-09-10 11:39:35,042 INFO L168 Benchmark]: CACSL2BoogieTranslator took 1015.66 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.4 GB in the end (delta: 76.6 MB). Peak memory consumption was 76.6 MB. Max. memory is 7.1 GB. [2018-09-10 11:39:35,043 INFO L168 Benchmark]: Boogie Procedure Inliner took 195.17 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: 21.1 MB). Peak memory consumption was 21.1 MB. Max. memory is 7.1 GB. [2018-09-10 11:39:35,044 INFO L168 Benchmark]: Boogie Preprocessor took 354.15 ms. Allocated memory was 1.5 GB in the beginning and 2.4 GB in the end (delta: 826.3 MB). Free memory was 1.3 GB in the beginning and 2.3 GB in the end (delta: -952.3 MB). Peak memory consumption was 51.9 MB. Max. memory is 7.1 GB. [2018-09-10 11:39:35,044 INFO L168 Benchmark]: RCFGBuilder took 5818.65 ms. Allocated memory is still 2.4 GB. Free memory was 2.3 GB in the beginning and 2.1 GB in the end (delta: 195.9 MB). Peak memory consumption was 195.9 MB. Max. memory is 7.1 GB. [2018-09-10 11:39:35,045 INFO L168 Benchmark]: TraceAbstraction took 234084.33 ms. Allocated memory was 2.4 GB in the beginning and 3.9 GB in the end (delta: 1.6 GB). Free memory was 2.1 GB in the beginning and 1.8 GB in the end (delta: 338.9 MB). Peak memory consumption was 1.9 GB. Max. memory is 7.1 GB. [2018-09-10 11:39:35,054 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22 ms. Allocated memory is still 1.5 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 1015.66 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.4 GB in the end (delta: 76.6 MB). Peak memory consumption was 76.6 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 195.17 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: 21.1 MB). Peak memory consumption was 21.1 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 354.15 ms. Allocated memory was 1.5 GB in the beginning and 2.4 GB in the end (delta: 826.3 MB). Free memory was 1.3 GB in the beginning and 2.3 GB in the end (delta: -952.3 MB). Peak memory consumption was 51.9 MB. Max. memory is 7.1 GB. * RCFGBuilder took 5818.65 ms. Allocated memory is still 2.4 GB. Free memory was 2.3 GB in the beginning and 2.1 GB in the end (delta: 195.9 MB). Peak memory consumption was 195.9 MB. Max. memory is 7.1 GB. * TraceAbstraction took 234084.33 ms. Allocated memory was 2.4 GB in the beginning and 3.9 GB in the end (delta: 1.6 GB). Free memory was 2.1 GB in the beginning and 1.8 GB in the end (delta: 338.9 MB). Peak memory consumption was 1.9 GB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResultAtElement [Line: 159]: Timeout (TraceAbstraction) Unable to prove that call of __VERIFIER_error() unreachable (line 159). Cancelled while BasicCegarLoop was constructing difference of abstraction (69069states) and FLOYD_HOARE automaton (currently 114 states, 23 states before enhancement), while ReachableStatesComputation was computing reachable states (152187 states constructedinput type IntersectNwa). - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 293 locations, 1 error locations. TIMEOUT Result, 234.0s OverallTime, 11 OverallIterations, 4 TraceHistogramMax, 196.3s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 2269 SDtfs, 34173 SDslu, 6242 SDs, 0 SdLazy, 65821 SolverSat, 13355 SolverUnsat, 12 SolverUnknown, 0 SolverNotchecked, 120.5s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 6944 GetRequests, 6359 SyntacticMatches, 28 SemanticMatches, 557 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23599 ImplicationChecksByTransitivity, 69.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=69102occurred in iteration=9, 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: 6.3s AutomataMinimizationTime, 10 MinimizatonAttempts, 8098 StatesRemovedByMinimization, 9 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.3s SsaConstructionTime, 2.3s SatisfiabilityAnalysisTime, 26.7s InterpolantComputationTime, 5783 NumberOfCodeBlocks, 5783 NumberOfCodeBlocksAsserted, 23 NumberOfCheckSat, 8941 ConstructedInterpolants, 17 QuantifiedInterpolants, 16522152 SizeOfPredicates, 24 NumberOfNonLiveVariables, 5727 ConjunctsInSsa, 174 ConjunctsInUnsatCore, 35 InterpolantComputations, 7 PerfectInterpolantSequences, 5122/6664 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/Problem11_label24_true-unreach-call.c_svcomp-Reach-64bit-RubberTaipan_Default-OldIcfg.epf_AutomizerCInline.xml/Csv-Benchmark-0-2018-09-10_11-39-35-072.csv Written .csv to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/csv/Problem11_label24_true-unreach-call.c_svcomp-Reach-64bit-RubberTaipan_Default-OldIcfg.epf_AutomizerCInline.xml/Csv-TraceAbstractionBenchmarks-0-2018-09-10_11-39-35-072.csv Completed graceful shutdown