java -Xmx8000000000 -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml --generate-csv --csv-dir csv -s ../../../trunk/examples/settings/ai/taipanbench/svcomp-Reach-64bit-RubberTaipan_Default-OldIcfg.epf -i ../../../trunk/examples/svcomp/eca-rers2012/Problem15_label25_false-unreach-call.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-dd2f093 [2018-07-24 12:10:02,019 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-07-24 12:10:02,020 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-07-24 12:10:02,035 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-07-24 12:10:02,035 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-07-24 12:10:02,036 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-07-24 12:10:02,037 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-07-24 12:10:02,039 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-07-24 12:10:02,041 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-07-24 12:10:02,041 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-07-24 12:10:02,042 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-07-24 12:10:02,043 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-07-24 12:10:02,044 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-07-24 12:10:02,045 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-07-24 12:10:02,046 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-07-24 12:10:02,048 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-07-24 12:10:02,050 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-07-24 12:10:02,056 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-07-24 12:10:02,059 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-07-24 12:10:02,063 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-07-24 12:10:02,064 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-07-24 12:10:02,066 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-07-24 12:10:02,071 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-07-24 12:10:02,071 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-07-24 12:10:02,071 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-07-24 12:10:02,074 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-07-24 12:10:02,075 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-07-24 12:10:02,076 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-07-24 12:10:02,076 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-07-24 12:10:02,082 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-07-24 12:10:02,082 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-07-24 12:10:02,083 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-07-24 12:10:02,083 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-07-24 12:10:02,083 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-07-24 12:10:02,085 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-07-24 12:10:02,086 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-07-24 12:10:02,087 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/ai/taipanbench/svcomp-Reach-64bit-RubberTaipan_Default-OldIcfg.epf [2018-07-24 12:10:02,115 INFO L110 SettingsManager]: Loading preferences was successful [2018-07-24 12:10:02,115 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-07-24 12:10:02,116 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-07-24 12:10:02,117 INFO L133 SettingsManager]: * User list type=DISABLED [2018-07-24 12:10:02,117 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-07-24 12:10:02,117 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-07-24 12:10:02,117 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-07-24 12:10:02,117 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-07-24 12:10:02,117 INFO L133 SettingsManager]: * Log string format=TERM [2018-07-24 12:10:02,118 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-07-24 12:10:02,118 INFO L133 SettingsManager]: * Interval Domain=false [2018-07-24 12:10:02,119 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-07-24 12:10:02,119 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-07-24 12:10:02,119 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-07-24 12:10:02,119 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-07-24 12:10:02,120 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-07-24 12:10:02,120 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-07-24 12:10:02,120 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-07-24 12:10:02,122 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-07-24 12:10:02,122 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-07-24 12:10:02,122 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-07-24 12:10:02,122 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-07-24 12:10:02,122 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-07-24 12:10:02,123 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-07-24 12:10:02,123 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-07-24 12:10:02,123 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-07-24 12:10:02,123 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-07-24 12:10:02,123 INFO L133 SettingsManager]: * Trace refinement strategy=RUBBER_TAIPAN [2018-07-24 12:10:02,124 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-07-24 12:10:02,124 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-07-24 12:10:02,124 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-07-24 12:10:02,124 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-07-24 12:10:02,124 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-07-24 12:10:02,170 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-07-24 12:10:02,186 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-07-24 12:10:02,190 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-07-24 12:10:02,192 INFO L271 PluginConnector]: Initializing CDTParser... [2018-07-24 12:10:02,192 INFO L276 PluginConnector]: CDTParser initialized [2018-07-24 12:10:02,193 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem15_label25_false-unreach-call.c [2018-07-24 12:10:02,538 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5b43e5ce9/bd0ddc050d0849ee96cfc898870f3d49/FLAG59b4150b0 [2018-07-24 12:10:02,884 INFO L276 CDTParser]: Found 1 translation units. [2018-07-24 12:10:02,885 INFO L158 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem15_label25_false-unreach-call.c [2018-07-24 12:10:02,909 INFO L324 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5b43e5ce9/bd0ddc050d0849ee96cfc898870f3d49/FLAG59b4150b0 [2018-07-24 12:10:02,925 INFO L332 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5b43e5ce9/bd0ddc050d0849ee96cfc898870f3d49 [2018-07-24 12:10:02,936 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-07-24 12:10:02,937 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-07-24 12:10:02,938 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-07-24 12:10:02,939 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-07-24 12:10:02,945 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-07-24 12:10:02,946 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.07 12:10:02" (1/1) ... [2018-07-24 12:10:02,949 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1e9674d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.07 12:10:02, skipping insertion in model container [2018-07-24 12:10:02,950 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.07 12:10:02" (1/1) ... [2018-07-24 12:10:03,186 INFO L179 PRDispatcher]: Starting pre-run dispatcher in SV-COMP mode [2018-07-24 12:10:03,746 INFO L175 PostProcessor]: Settings: Checked method=main [2018-07-24 12:10:03,762 INFO L422 MainDispatcher]: Starting main dispatcher in SV-COMP mode [2018-07-24 12:10:04,068 INFO L175 PostProcessor]: Settings: Checked method=main [2018-07-24 12:10:04,205 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.07 12:10:04 WrapperNode [2018-07-24 12:10:04,206 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-07-24 12:10:04,207 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-07-24 12:10:04,207 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-07-24 12:10:04,207 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-07-24 12:10:04,218 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.07 12:10:04" (1/1) ... [2018-07-24 12:10:04,280 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.07 12:10:04" (1/1) ... [2018-07-24 12:10:04,438 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-07-24 12:10:04,438 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-07-24 12:10:04,439 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-07-24 12:10:04,439 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-07-24 12:10:04,887 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.07 12:10:04" (1/1) ... [2018-07-24 12:10:04,887 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.07 12:10:04" (1/1) ... [2018-07-24 12:10:04,903 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.07 12:10:04" (1/1) ... [2018-07-24 12:10:04,903 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.07 12:10:04" (1/1) ... [2018-07-24 12:10:04,978 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.07 12:10:04" (1/1) ... [2018-07-24 12:10:04,997 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.07 12:10:04" (1/1) ... [2018-07-24 12:10:05,035 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.07 12:10:04" (1/1) ... [2018-07-24 12:10:05,069 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-07-24 12:10:05,070 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-07-24 12:10:05,070 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-07-24 12:10:05,070 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-07-24 12:10:05,071 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.07 12:10:04" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-07-24 12:10:05,139 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-07-24 12:10:05,139 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-07-24 12:10:05,139 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-07-24 12:10:05,140 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-07-24 12:10:05,140 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-07-24 12:10:05,140 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-07-24 12:10:05,140 INFO L130 BoogieDeclarations]: Found specification of procedure __U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___false_unreach_call_c__calculate_output2 [2018-07-24 12:10:05,140 INFO L138 BoogieDeclarations]: Found implementation of procedure __U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___false_unreach_call_c__calculate_output2 [2018-07-24 12:10:05,141 INFO L130 BoogieDeclarations]: Found specification of procedure __U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___false_unreach_call_c__calculate_output [2018-07-24 12:10:05,141 INFO L138 BoogieDeclarations]: Found implementation of procedure __U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___false_unreach_call_c__calculate_output [2018-07-24 12:10:12,032 INFO L261 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-07-24 12:10:12,033 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.07 12:10:12 BoogieIcfgContainer [2018-07-24 12:10:12,034 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-07-24 12:10:12,035 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-07-24 12:10:12,035 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-07-24 12:10:12,038 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-07-24 12:10:12,040 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.07 12:10:02" (1/3) ... [2018-07-24 12:10:12,041 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@30e0d7be and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.07 12:10:12, skipping insertion in model container [2018-07-24 12:10:12,041 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.07 12:10:04" (2/3) ... [2018-07-24 12:10:12,042 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@30e0d7be and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.07 12:10:12, skipping insertion in model container [2018-07-24 12:10:12,042 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.07 12:10:12" (3/3) ... [2018-07-24 12:10:12,044 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem15_label25_false-unreach-call.c [2018-07-24 12:10:12,054 INFO L132 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-07-24 12:10:12,063 INFO L144 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-07-24 12:10:12,122 INFO L128 ementStrategyFactory]: Using default assertion order modulation [2018-07-24 12:10:12,123 INFO L373 AbstractCegarLoop]: Interprodecural is true [2018-07-24 12:10:12,124 INFO L374 AbstractCegarLoop]: Hoare is true [2018-07-24 12:10:12,124 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-07-24 12:10:12,124 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-07-24 12:10:12,124 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-07-24 12:10:12,124 INFO L378 AbstractCegarLoop]: Difference is false [2018-07-24 12:10:12,124 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-07-24 12:10:12,125 INFO L384 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-07-24 12:10:12,158 INFO L276 IsEmpty]: Start isEmpty. Operand 438 states. [2018-07-24 12:10:12,165 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2018-07-24 12:10:12,166 INFO L345 BasicCegarLoop]: Found error trace [2018-07-24 12:10:12,167 INFO L353 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-07-24 12:10:12,167 INFO L414 AbstractCegarLoop]: === Iteration 1 === [__U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___false_unreach_call_c__calculate_outputErr0AssertViolationERROR_FUNCTION]=== [2018-07-24 12:10:12,173 INFO L82 PathProgramCache]: Analyzing trace with hash -1806084687, now seen corresponding path program 1 times [2018-07-24 12:10:12,175 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-07-24 12:10:12,228 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 12:10:12,228 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 12:10:12,228 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 12:10:12,228 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-07-24 12:10:12,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 12:10:12,600 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-24 12:10:12,608 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-24 12:10:12,608 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-07-24 12:10:12,608 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-07-24 12:10:12,615 INFO L450 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-07-24 12:10:12,631 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-07-24 12:10:12,632 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-07-24 12:10:12,635 INFO L87 Difference]: Start difference. First operand 438 states. Second operand 3 states. [2018-07-24 12:10:17,097 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-24 12:10:17,098 INFO L93 Difference]: Finished difference Result 1198 states and 2158 transitions. [2018-07-24 12:10:17,098 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-07-24 12:10:17,099 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 31 [2018-07-24 12:10:17,100 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-24 12:10:17,128 INFO L225 Difference]: With dead ends: 1198 [2018-07-24 12:10:17,129 INFO L226 Difference]: Without dead ends: 758 [2018-07-24 12:10:17,140 INFO L573 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 2 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-07-24 12:10:17,161 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 758 states. [2018-07-24 12:10:17,237 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 758 to 754. [2018-07-24 12:10:17,239 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 754 states. [2018-07-24 12:10:17,245 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 754 states to 754 states and 1328 transitions. [2018-07-24 12:10:17,247 INFO L78 Accepts]: Start accepts. Automaton has 754 states and 1328 transitions. Word has length 31 [2018-07-24 12:10:17,248 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-24 12:10:17,248 INFO L471 AbstractCegarLoop]: Abstraction has 754 states and 1328 transitions. [2018-07-24 12:10:17,248 INFO L472 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-07-24 12:10:17,248 INFO L276 IsEmpty]: Start isEmpty. Operand 754 states and 1328 transitions. [2018-07-24 12:10:17,255 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2018-07-24 12:10:17,255 INFO L345 BasicCegarLoop]: Found error trace [2018-07-24 12:10:17,256 INFO L353 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-07-24 12:10:17,256 INFO L414 AbstractCegarLoop]: === Iteration 2 === [__U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___false_unreach_call_c__calculate_outputErr0AssertViolationERROR_FUNCTION]=== [2018-07-24 12:10:17,256 INFO L82 PathProgramCache]: Analyzing trace with hash 1471249588, now seen corresponding path program 1 times [2018-07-24 12:10:17,257 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-07-24 12:10:17,258 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 12:10:17,258 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 12:10:17,259 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 12:10:17,259 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-07-24 12:10:17,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 12:10:17,744 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 24 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-24 12:10:17,744 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-24 12:10:17,744 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-07-24 12:10:17,745 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-07-24 12:10:17,747 INFO L450 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-07-24 12:10:17,747 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-07-24 12:10:17,747 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-07-24 12:10:17,747 INFO L87 Difference]: Start difference. First operand 754 states and 1328 transitions. Second operand 6 states. [2018-07-24 12:10:27,044 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-24 12:10:27,045 INFO L93 Difference]: Finished difference Result 2140 states and 3804 transitions. [2018-07-24 12:10:27,045 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-07-24 12:10:27,046 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 105 [2018-07-24 12:10:27,046 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-24 12:10:27,056 INFO L225 Difference]: With dead ends: 2140 [2018-07-24 12:10:27,057 INFO L226 Difference]: Without dead ends: 1392 [2018-07-24 12:10:27,062 INFO L573 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2018-07-24 12:10:27,064 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1392 states. [2018-07-24 12:10:27,134 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1392 to 1379. [2018-07-24 12:10:27,135 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1379 states. [2018-07-24 12:10:27,141 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1379 states to 1379 states and 2168 transitions. [2018-07-24 12:10:27,142 INFO L78 Accepts]: Start accepts. Automaton has 1379 states and 2168 transitions. Word has length 105 [2018-07-24 12:10:27,143 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-24 12:10:27,143 INFO L471 AbstractCegarLoop]: Abstraction has 1379 states and 2168 transitions. [2018-07-24 12:10:27,143 INFO L472 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-07-24 12:10:27,143 INFO L276 IsEmpty]: Start isEmpty. Operand 1379 states and 2168 transitions. [2018-07-24 12:10:27,149 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2018-07-24 12:10:27,149 INFO L345 BasicCegarLoop]: Found error trace [2018-07-24 12:10:27,149 INFO L353 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-07-24 12:10:27,150 INFO L414 AbstractCegarLoop]: === Iteration 3 === [__U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___false_unreach_call_c__calculate_outputErr0AssertViolationERROR_FUNCTION]=== [2018-07-24 12:10:27,150 INFO L82 PathProgramCache]: Analyzing trace with hash -44490580, now seen corresponding path program 1 times [2018-07-24 12:10:27,150 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-07-24 12:10:27,151 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 12:10:27,151 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 12:10:27,151 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 12:10:27,151 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-07-24 12:10:27,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 12:10:27,433 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 24 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-24 12:10:27,433 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-24 12:10:27,436 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-07-24 12:10:27,436 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-07-24 12:10:27,436 INFO L450 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-07-24 12:10:27,437 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-07-24 12:10:27,437 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-07-24 12:10:27,437 INFO L87 Difference]: Start difference. First operand 1379 states and 2168 transitions. Second operand 6 states. [2018-07-24 12:10:35,924 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-24 12:10:35,924 INFO L93 Difference]: Finished difference Result 3398 states and 5434 transitions. [2018-07-24 12:10:35,925 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-07-24 12:10:35,925 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 117 [2018-07-24 12:10:35,926 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-24 12:10:35,942 INFO L225 Difference]: With dead ends: 3398 [2018-07-24 12:10:35,943 INFO L226 Difference]: Without dead ends: 2025 [2018-07-24 12:10:35,951 INFO L573 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2018-07-24 12:10:35,954 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2025 states. [2018-07-24 12:10:36,009 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2025 to 2003. [2018-07-24 12:10:36,009 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2003 states. [2018-07-24 12:10:36,019 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2003 states to 2003 states and 2887 transitions. [2018-07-24 12:10:36,019 INFO L78 Accepts]: Start accepts. Automaton has 2003 states and 2887 transitions. Word has length 117 [2018-07-24 12:10:36,020 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-24 12:10:36,020 INFO L471 AbstractCegarLoop]: Abstraction has 2003 states and 2887 transitions. [2018-07-24 12:10:36,020 INFO L472 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-07-24 12:10:36,022 INFO L276 IsEmpty]: Start isEmpty. Operand 2003 states and 2887 transitions. [2018-07-24 12:10:36,031 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 124 [2018-07-24 12:10:36,031 INFO L345 BasicCegarLoop]: Found error trace [2018-07-24 12:10:36,031 INFO L353 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-07-24 12:10:36,032 INFO L414 AbstractCegarLoop]: === Iteration 4 === [__U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___false_unreach_call_c__calculate_outputErr0AssertViolationERROR_FUNCTION]=== [2018-07-24 12:10:36,032 INFO L82 PathProgramCache]: Analyzing trace with hash 1088381144, now seen corresponding path program 1 times [2018-07-24 12:10:36,032 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-07-24 12:10:36,033 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 12:10:36,033 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 12:10:36,034 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 12:10:36,034 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-07-24 12:10:36,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 12:10:36,343 WARN L169 SmtUtils]: Spent 159.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 4 [2018-07-24 12:10:36,445 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 24 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-24 12:10:36,445 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-24 12:10:36,445 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-07-24 12:10:36,446 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-07-24 12:10:36,446 INFO L450 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-07-24 12:10:36,446 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-07-24 12:10:36,447 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-07-24 12:10:36,447 INFO L87 Difference]: Start difference. First operand 2003 states and 2887 transitions. Second operand 6 states. [2018-07-24 12:10:41,528 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-24 12:10:41,528 INFO L93 Difference]: Finished difference Result 4661 states and 6800 transitions. [2018-07-24 12:10:41,528 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-07-24 12:10:41,529 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 123 [2018-07-24 12:10:41,529 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-24 12:10:41,548 INFO L225 Difference]: With dead ends: 4661 [2018-07-24 12:10:41,548 INFO L226 Difference]: Without dead ends: 2664 [2018-07-24 12:10:41,558 INFO L573 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2018-07-24 12:10:41,562 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2664 states. [2018-07-24 12:10:41,639 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2664 to 2636. [2018-07-24 12:10:41,639 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2636 states. [2018-07-24 12:10:41,648 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2636 states to 2636 states and 3543 transitions. [2018-07-24 12:10:41,648 INFO L78 Accepts]: Start accepts. Automaton has 2636 states and 3543 transitions. Word has length 123 [2018-07-24 12:10:41,649 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-24 12:10:41,649 INFO L471 AbstractCegarLoop]: Abstraction has 2636 states and 3543 transitions. [2018-07-24 12:10:41,649 INFO L472 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-07-24 12:10:41,649 INFO L276 IsEmpty]: Start isEmpty. Operand 2636 states and 3543 transitions. [2018-07-24 12:10:41,653 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 156 [2018-07-24 12:10:41,653 INFO L345 BasicCegarLoop]: Found error trace [2018-07-24 12:10:41,653 INFO L353 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-07-24 12:10:41,654 INFO L414 AbstractCegarLoop]: === Iteration 5 === [__U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___false_unreach_call_c__calculate_outputErr0AssertViolationERROR_FUNCTION]=== [2018-07-24 12:10:41,654 INFO L82 PathProgramCache]: Analyzing trace with hash 1778191437, now seen corresponding path program 1 times [2018-07-24 12:10:41,654 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-07-24 12:10:41,655 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 12:10:41,655 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 12:10:41,655 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 12:10:41,655 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-07-24 12:10:41,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 12:10:42,160 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 24 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-24 12:10:42,160 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-24 12:10:42,161 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-07-24 12:10:42,161 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-07-24 12:10:42,162 INFO L450 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-07-24 12:10:42,162 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-07-24 12:10:42,162 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2018-07-24 12:10:42,164 INFO L87 Difference]: Start difference. First operand 2636 states and 3543 transitions. Second operand 6 states. [2018-07-24 12:10:52,583 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-24 12:10:52,584 INFO L93 Difference]: Finished difference Result 8432 states and 11641 transitions. [2018-07-24 12:10:52,584 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-07-24 12:10:52,584 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 155 [2018-07-24 12:10:52,585 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-24 12:10:52,613 INFO L225 Difference]: With dead ends: 8432 [2018-07-24 12:10:52,614 INFO L226 Difference]: Without dead ends: 5802 [2018-07-24 12:10:52,632 INFO L573 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2018-07-24 12:10:52,637 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5802 states. [2018-07-24 12:10:52,761 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5802 to 5682. [2018-07-24 12:10:52,761 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5682 states. [2018-07-24 12:10:52,772 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5682 states to 5682 states and 6921 transitions. [2018-07-24 12:10:52,773 INFO L78 Accepts]: Start accepts. Automaton has 5682 states and 6921 transitions. Word has length 155 [2018-07-24 12:10:52,773 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-24 12:10:52,773 INFO L471 AbstractCegarLoop]: Abstraction has 5682 states and 6921 transitions. [2018-07-24 12:10:52,773 INFO L472 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-07-24 12:10:52,774 INFO L276 IsEmpty]: Start isEmpty. Operand 5682 states and 6921 transitions. [2018-07-24 12:10:52,787 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 200 [2018-07-24 12:10:52,787 INFO L345 BasicCegarLoop]: Found error trace [2018-07-24 12:10:52,788 INFO L353 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2018-07-24 12:10:52,788 INFO L414 AbstractCegarLoop]: === Iteration 6 === [__U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___false_unreach_call_c__calculate_outputErr0AssertViolationERROR_FUNCTION]=== [2018-07-24 12:10:52,788 INFO L82 PathProgramCache]: Analyzing trace with hash -700620195, now seen corresponding path program 1 times [2018-07-24 12:10:52,788 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-07-24 12:10:52,789 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 12:10:52,789 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 12:10:52,789 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 12:10:52,790 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-07-24 12:10:52,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 12:10:53,031 WARN L169 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 3 [2018-07-24 12:10:53,053 INFO L134 CoverageAnalysis]: Checked inductivity of 129 backedges. 51 proven. 0 refuted. 0 times theorem prover too weak. 78 trivial. 0 not checked. [2018-07-24 12:10:53,054 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-24 12:10:53,054 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-07-24 12:10:53,054 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-07-24 12:10:53,055 INFO L450 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-07-24 12:10:53,055 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-07-24 12:10:53,055 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-07-24 12:10:53,056 INFO L87 Difference]: Start difference. First operand 5682 states and 6921 transitions. Second operand 3 states. [2018-07-24 12:10:58,911 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-24 12:10:58,912 INFO L93 Difference]: Finished difference Result 16081 states and 20040 transitions. [2018-07-24 12:10:58,912 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-07-24 12:10:58,912 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 199 [2018-07-24 12:10:58,913 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-24 12:10:58,951 INFO L225 Difference]: With dead ends: 16081 [2018-07-24 12:10:58,951 INFO L226 Difference]: Without dead ends: 10405 [2018-07-24 12:10:58,977 INFO L573 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-07-24 12:10:58,984 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10405 states. [2018-07-24 12:10:59,179 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10405 to 10378. [2018-07-24 12:10:59,179 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10378 states. [2018-07-24 12:10:59,204 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10378 states to 10378 states and 12772 transitions. [2018-07-24 12:10:59,205 INFO L78 Accepts]: Start accepts. Automaton has 10378 states and 12772 transitions. Word has length 199 [2018-07-24 12:10:59,205 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-24 12:10:59,206 INFO L471 AbstractCegarLoop]: Abstraction has 10378 states and 12772 transitions. [2018-07-24 12:10:59,206 INFO L472 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-07-24 12:10:59,206 INFO L276 IsEmpty]: Start isEmpty. Operand 10378 states and 12772 transitions. [2018-07-24 12:10:59,216 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 213 [2018-07-24 12:10:59,216 INFO L345 BasicCegarLoop]: Found error trace [2018-07-24 12:10:59,216 INFO L353 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2018-07-24 12:10:59,216 INFO L414 AbstractCegarLoop]: === Iteration 7 === [__U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___false_unreach_call_c__calculate_outputErr0AssertViolationERROR_FUNCTION]=== [2018-07-24 12:10:59,217 INFO L82 PathProgramCache]: Analyzing trace with hash -95629639, now seen corresponding path program 1 times [2018-07-24 12:10:59,217 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-07-24 12:10:59,218 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 12:10:59,218 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 12:10:59,218 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 12:10:59,218 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-07-24 12:10:59,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 12:10:59,923 INFO L134 CoverageAnalysis]: Checked inductivity of 129 backedges. 53 proven. 2 refuted. 0 times theorem prover too weak. 74 trivial. 0 not checked. [2018-07-24 12:10:59,924 INFO L297 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-07-24 12:10:59,924 INFO L191 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-07-24 12:10:59,949 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 12:10:59,950 INFO L288 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-07-24 12:11:00,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 12:11:00,074 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-07-24 12:11:00,602 WARN L169 SmtUtils]: Spent 165.00 ms on a formula simplification. DAG size of input: 20 DAG size of output: 15 [2018-07-24 12:11:00,665 INFO L134 CoverageAnalysis]: Checked inductivity of 129 backedges. 104 proven. 0 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2018-07-24 12:11:00,665 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-07-24 12:11:01,352 INFO L134 CoverageAnalysis]: Checked inductivity of 129 backedges. 48 proven. 76 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2018-07-24 12:11:01,375 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 2 imperfect interpolant sequences. [2018-07-24 12:11:01,375 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [7, 5] total 12 [2018-07-24 12:11:01,376 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-07-24 12:11:01,376 INFO L450 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-07-24 12:11:01,377 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-07-24 12:11:01,377 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=104, Unknown=0, NotChecked=0, Total=132 [2018-07-24 12:11:01,377 INFO L87 Difference]: Start difference. First operand 10378 states and 12772 transitions. Second operand 5 states. [2018-07-24 12:11:11,967 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-24 12:11:11,967 INFO L93 Difference]: Finished difference Result 22176 states and 27257 transitions. [2018-07-24 12:11:11,969 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-07-24 12:11:11,970 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 212 [2018-07-24 12:11:11,970 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-24 12:11:12,051 INFO L225 Difference]: With dead ends: 22176 [2018-07-24 12:11:12,052 INFO L226 Difference]: Without dead ends: 11804 [2018-07-24 12:11:12,112 INFO L573 BasicCegarLoop]: 0 DeclaredPredicates, 434 GetRequests, 421 SyntacticMatches, 1 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=39, Invalid=143, Unknown=0, NotChecked=0, Total=182 [2018-07-24 12:11:12,123 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11804 states. [2018-07-24 12:11:12,526 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11804 to 11512. [2018-07-24 12:11:12,527 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11512 states. [2018-07-24 12:11:12,551 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11512 states to 11512 states and 14027 transitions. [2018-07-24 12:11:12,552 INFO L78 Accepts]: Start accepts. Automaton has 11512 states and 14027 transitions. Word has length 212 [2018-07-24 12:11:12,552 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-24 12:11:12,552 INFO L471 AbstractCegarLoop]: Abstraction has 11512 states and 14027 transitions. [2018-07-24 12:11:12,552 INFO L472 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-07-24 12:11:12,553 INFO L276 IsEmpty]: Start isEmpty. Operand 11512 states and 14027 transitions. [2018-07-24 12:11:12,563 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 252 [2018-07-24 12:11:12,563 INFO L345 BasicCegarLoop]: Found error trace [2018-07-24 12:11:12,563 INFO L353 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2018-07-24 12:11:12,564 INFO L414 AbstractCegarLoop]: === Iteration 8 === [__U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___false_unreach_call_c__calculate_outputErr0AssertViolationERROR_FUNCTION]=== [2018-07-24 12:11:12,564 INFO L82 PathProgramCache]: Analyzing trace with hash 1998821923, now seen corresponding path program 1 times [2018-07-24 12:11:12,564 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-07-24 12:11:12,565 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 12:11:12,565 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 12:11:12,566 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 12:11:12,566 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-07-24 12:11:12,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 12:11:13,318 INFO L134 CoverageAnalysis]: Checked inductivity of 144 backedges. 51 proven. 87 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2018-07-24 12:11:13,319 INFO L297 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-07-24 12:11:13,319 INFO L191 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) [2018-07-24 12:11:13,337 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 12:11:13,337 INFO L288 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-07-24 12:11:13,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 12:11:13,455 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-07-24 12:11:13,706 INFO L134 CoverageAnalysis]: Checked inductivity of 144 backedges. 51 proven. 0 refuted. 0 times theorem prover too weak. 93 trivial. 0 not checked. [2018-07-24 12:11:13,707 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-07-24 12:11:14,200 INFO L134 CoverageAnalysis]: Checked inductivity of 144 backedges. 51 proven. 0 refuted. 0 times theorem prover too weak. 93 trivial. 0 not checked. [2018-07-24 12:11:14,221 INFO L309 seRefinementStrategy]: Constructing automaton from 2 perfect and 1 imperfect interpolant sequences. [2018-07-24 12:11:14,222 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [6] total 11 [2018-07-24 12:11:14,222 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-07-24 12:11:14,223 INFO L450 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-07-24 12:11:14,223 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-07-24 12:11:14,223 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=71, Unknown=0, NotChecked=0, Total=110 [2018-07-24 12:11:14,223 INFO L87 Difference]: Start difference. First operand 11512 states and 14027 transitions. Second operand 5 states. [2018-07-24 12:11:19,938 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-24 12:11:19,939 INFO L93 Difference]: Finished difference Result 33883 states and 42354 transitions. [2018-07-24 12:11:19,939 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-07-24 12:11:19,939 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 251 [2018-07-24 12:11:19,940 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-24 12:11:20,013 INFO L225 Difference]: With dead ends: 33883 [2018-07-24 12:11:20,013 INFO L226 Difference]: Without dead ends: 22685 [2018-07-24 12:11:20,041 INFO L573 BasicCegarLoop]: 0 DeclaredPredicates, 511 GetRequests, 499 SyntacticMatches, 2 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 32 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=46, Invalid=86, Unknown=0, NotChecked=0, Total=132 [2018-07-24 12:11:20,060 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22685 states. [2018-07-24 12:11:20,622 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22685 to 22204. [2018-07-24 12:11:20,623 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 22204 states. [2018-07-24 12:11:20,669 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22204 states to 22204 states and 26029 transitions. [2018-07-24 12:11:20,669 INFO L78 Accepts]: Start accepts. Automaton has 22204 states and 26029 transitions. Word has length 251 [2018-07-24 12:11:20,670 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-24 12:11:20,670 INFO L471 AbstractCegarLoop]: Abstraction has 22204 states and 26029 transitions. [2018-07-24 12:11:20,670 INFO L472 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-07-24 12:11:20,671 INFO L276 IsEmpty]: Start isEmpty. Operand 22204 states and 26029 transitions. [2018-07-24 12:11:20,685 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 309 [2018-07-24 12:11:20,685 INFO L345 BasicCegarLoop]: Found error trace [2018-07-24 12:11:20,686 INFO L353 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, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-07-24 12:11:20,686 INFO L414 AbstractCegarLoop]: === Iteration 9 === [__U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___false_unreach_call_c__calculate_outputErr0AssertViolationERROR_FUNCTION]=== [2018-07-24 12:11:20,686 INFO L82 PathProgramCache]: Analyzing trace with hash 1607742883, now seen corresponding path program 1 times [2018-07-24 12:11:20,686 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-07-24 12:11:20,687 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 12:11:20,687 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 12:11:20,688 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 12:11:20,688 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-07-24 12:11:20,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 12:11:21,835 WARN L169 SmtUtils]: Spent 198.00 ms on a formula simplification that was a NOOP. DAG size: 16 [2018-07-24 12:11:22,322 WARN L169 SmtUtils]: Spent 339.00 ms on a formula simplification that was a NOOP. DAG size: 28 [2018-07-24 12:11:22,526 INFO L134 CoverageAnalysis]: Checked inductivity of 330 backedges. 84 proven. 241 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2018-07-24 12:11:22,526 INFO L297 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-07-24 12:11:22,526 INFO L191 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-07-24 12:11:22,535 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 12:11:22,535 INFO L288 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-07-24 12:11:22,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 12:11:22,657 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-07-24 12:11:22,982 INFO L134 CoverageAnalysis]: Checked inductivity of 330 backedges. 279 proven. 26 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2018-07-24 12:11:22,982 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-07-24 12:11:23,399 INFO L134 CoverageAnalysis]: Checked inductivity of 330 backedges. 82 proven. 243 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2018-07-24 12:11:23,420 INFO L297 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-07-24 12:11:23,421 INFO L191 anRefinementStrategy]: Switched to InterpolantGenerator mode CVC4_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4nyu Starting monitored process 5 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk --tlimit-per=12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk --tlimit-per=12000 [2018-07-24 12:11:23,439 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 12:11:23,439 INFO L288 anRefinementStrategy]: Using traceCheck mode CVC4_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-07-24 12:11:23,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 12:11:23,692 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-07-24 12:11:24,029 INFO L134 CoverageAnalysis]: Checked inductivity of 330 backedges. 229 proven. 26 refuted. 0 times theorem prover too weak. 75 trivial. 0 not checked. [2018-07-24 12:11:24,029 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-07-24 12:11:24,772 INFO L134 CoverageAnalysis]: Checked inductivity of 330 backedges. 82 proven. 243 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2018-07-24 12:11:24,775 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 5 imperfect interpolant sequences. [2018-07-24 12:11:24,775 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 9, 9, 8, 9] total 24 [2018-07-24 12:11:24,775 INFO L251 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-07-24 12:11:24,776 INFO L450 AbstractCegarLoop]: Interpolant automaton has 14 states [2018-07-24 12:11:24,776 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2018-07-24 12:11:24,776 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=120, Invalid=432, Unknown=0, NotChecked=0, Total=552 [2018-07-24 12:11:24,776 INFO L87 Difference]: Start difference. First operand 22204 states and 26029 transitions. Second operand 14 states. [2018-07-24 12:12:01,710 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-24 12:12:01,711 INFO L93 Difference]: Finished difference Result 60819 states and 74749 transitions. [2018-07-24 12:12:01,712 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 41 states. [2018-07-24 12:12:01,712 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 308 [2018-07-24 12:12:01,712 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-24 12:12:01,832 INFO L225 Difference]: With dead ends: 60819 [2018-07-24 12:12:01,832 INFO L226 Difference]: Without dead ends: 38028 [2018-07-24 12:12:01,909 INFO L573 BasicCegarLoop]: 0 DeclaredPredicates, 1310 GetRequests, 1247 SyntacticMatches, 6 SemanticMatches, 57 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 942 ImplicationChecksByTransitivity, 3.6s TimeCoverageRelationStatistics Valid=802, Invalid=2620, Unknown=0, NotChecked=0, Total=3422 [2018-07-24 12:12:01,937 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38028 states. [2018-07-24 12:12:02,540 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38028 to 36084. [2018-07-24 12:12:02,541 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 36084 states. [2018-07-24 12:12:02,637 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36084 states to 36084 states and 42838 transitions. [2018-07-24 12:12:02,638 INFO L78 Accepts]: Start accepts. Automaton has 36084 states and 42838 transitions. Word has length 308 [2018-07-24 12:12:02,640 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-24 12:12:02,640 INFO L471 AbstractCegarLoop]: Abstraction has 36084 states and 42838 transitions. [2018-07-24 12:12:02,640 INFO L472 AbstractCegarLoop]: Interpolant automaton has 14 states. [2018-07-24 12:12:02,640 INFO L276 IsEmpty]: Start isEmpty. Operand 36084 states and 42838 transitions. [2018-07-24 12:12:02,669 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 394 [2018-07-24 12:12:02,670 INFO L345 BasicCegarLoop]: Found error trace [2018-07-24 12:12:02,670 INFO L353 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, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-07-24 12:12:02,671 INFO L414 AbstractCegarLoop]: === Iteration 10 === [__U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___false_unreach_call_c__calculate_outputErr0AssertViolationERROR_FUNCTION]=== [2018-07-24 12:12:02,671 INFO L82 PathProgramCache]: Analyzing trace with hash -1233524618, now seen corresponding path program 1 times [2018-07-24 12:12:02,671 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-07-24 12:12:02,672 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 12:12:02,672 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 12:12:02,672 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 12:12:02,674 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-07-24 12:12:02,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 12:12:04,612 INFO L134 CoverageAnalysis]: Checked inductivity of 334 backedges. 84 proven. 245 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2018-07-24 12:12:04,612 INFO L297 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-07-24 12:12:04,612 INFO L191 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-07-24 12:12:04,624 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 12:12:04,625 INFO L288 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-07-24 12:12:04,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 12:12:04,770 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-07-24 12:12:05,033 INFO L134 CoverageAnalysis]: Checked inductivity of 334 backedges. 283 proven. 26 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2018-07-24 12:12:05,033 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-07-24 12:12:05,562 INFO L134 CoverageAnalysis]: Checked inductivity of 334 backedges. 82 proven. 247 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2018-07-24 12:12:05,582 INFO L297 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-07-24 12:12:05,582 INFO L191 anRefinementStrategy]: Switched to InterpolantGenerator mode CVC4_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4nyu Starting monitored process 7 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk --tlimit-per=12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk --tlimit-per=12000 [2018-07-24 12:12:05,597 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 12:12:05,598 INFO L288 anRefinementStrategy]: Using traceCheck mode CVC4_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-07-24 12:12:05,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 12:12:05,930 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-07-24 12:12:07,059 INFO L134 CoverageAnalysis]: Checked inductivity of 334 backedges. 233 proven. 26 refuted. 0 times theorem prover too weak. 75 trivial. 0 not checked. [2018-07-24 12:12:07,060 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-07-24 12:12:07,980 INFO L134 CoverageAnalysis]: Checked inductivity of 334 backedges. 82 proven. 247 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2018-07-24 12:12:07,982 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 5 imperfect interpolant sequences. [2018-07-24 12:12:07,983 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 9, 9, 8, 9] total 24 [2018-07-24 12:12:07,983 INFO L251 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-07-24 12:12:07,984 INFO L450 AbstractCegarLoop]: Interpolant automaton has 14 states [2018-07-24 12:12:07,984 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2018-07-24 12:12:07,985 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=117, Invalid=435, Unknown=0, NotChecked=0, Total=552 [2018-07-24 12:12:07,985 INFO L87 Difference]: Start difference. First operand 36084 states and 42838 transitions. Second operand 14 states. [2018-07-24 12:12:43,918 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-24 12:12:43,919 INFO L93 Difference]: Finished difference Result 74846 states and 90361 transitions. [2018-07-24 12:12:43,919 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2018-07-24 12:12:43,919 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 393 [2018-07-24 12:12:43,920 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-24 12:12:44,057 INFO L225 Difference]: With dead ends: 74846 [2018-07-24 12:12:44,057 INFO L226 Difference]: Without dead ends: 38095 [2018-07-24 12:12:44,145 INFO L573 BasicCegarLoop]: 0 DeclaredPredicates, 1655 GetRequests, 1586 SyntacticMatches, 9 SemanticMatches, 60 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1038 ImplicationChecksByTransitivity, 4.1s TimeCoverageRelationStatistics Valid=889, Invalid=2893, Unknown=0, NotChecked=0, Total=3782 [2018-07-24 12:12:44,171 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38095 states. [2018-07-24 12:12:44,774 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38095 to 35758. [2018-07-24 12:12:44,774 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 35758 states. [2018-07-24 12:12:44,868 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35758 states to 35758 states and 42165 transitions. [2018-07-24 12:12:44,869 INFO L78 Accepts]: Start accepts. Automaton has 35758 states and 42165 transitions. Word has length 393 [2018-07-24 12:12:44,869 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-24 12:12:44,869 INFO L471 AbstractCegarLoop]: Abstraction has 35758 states and 42165 transitions. [2018-07-24 12:12:44,869 INFO L472 AbstractCegarLoop]: Interpolant automaton has 14 states. [2018-07-24 12:12:44,869 INFO L276 IsEmpty]: Start isEmpty. Operand 35758 states and 42165 transitions. [2018-07-24 12:12:44,896 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 451 [2018-07-24 12:12:44,896 INFO L345 BasicCegarLoop]: Found error trace [2018-07-24 12:12:44,897 INFO L353 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, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-07-24 12:12:44,897 INFO L414 AbstractCegarLoop]: === Iteration 11 === [__U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___false_unreach_call_c__calculate_outputErr0AssertViolationERROR_FUNCTION]=== [2018-07-24 12:12:44,897 INFO L82 PathProgramCache]: Analyzing trace with hash 1515794998, now seen corresponding path program 1 times [2018-07-24 12:12:44,897 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-07-24 12:12:44,898 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 12:12:44,898 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 12:12:44,898 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 12:12:44,898 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-07-24 12:12:44,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 12:12:45,659 INFO L134 CoverageAnalysis]: Checked inductivity of 334 backedges. 83 proven. 169 refuted. 0 times theorem prover too weak. 82 trivial. 0 not checked. [2018-07-24 12:12:45,659 INFO L297 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-07-24 12:12:45,659 INFO L191 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 8 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-07-24 12:12:45,669 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 12:12:45,670 INFO L288 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-07-24 12:12:45,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 12:12:45,839 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-07-24 12:12:46,235 INFO L134 CoverageAnalysis]: Checked inductivity of 334 backedges. 307 proven. 2 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2018-07-24 12:12:46,235 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-07-24 12:12:46,570 INFO L134 CoverageAnalysis]: Checked inductivity of 334 backedges. 156 proven. 80 refuted. 0 times theorem prover too weak. 98 trivial. 0 not checked. [2018-07-24 12:12:46,590 INFO L297 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-07-24 12:12:46,591 INFO L191 anRefinementStrategy]: Switched to InterpolantGenerator mode CVC4_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4nyu Starting monitored process 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 [2018-07-24 12:12:46,606 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 12:12:46,606 INFO L288 anRefinementStrategy]: Using traceCheck mode CVC4_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-07-24 12:12:46,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 12:12:46,985 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-07-24 12:12:47,274 INFO L134 CoverageAnalysis]: Checked inductivity of 334 backedges. 229 proven. 2 refuted. 0 times theorem prover too weak. 103 trivial. 0 not checked. [2018-07-24 12:12:47,274 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-07-24 12:12:47,435 WARN L169 SmtUtils]: Spent 150.00 ms on a formula simplification. DAG size of input: 20 DAG size of output: 15 [2018-07-24 12:12:48,017 INFO L134 CoverageAnalysis]: Checked inductivity of 334 backedges. 80 proven. 171 refuted. 0 times theorem prover too weak. 83 trivial. 0 not checked. [2018-07-24 12:12:48,019 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 5 imperfect interpolant sequences. [2018-07-24 12:12:48,020 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 5, 5, 5, 5] total 18 [2018-07-24 12:12:48,020 INFO L251 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-07-24 12:12:48,022 INFO L450 AbstractCegarLoop]: Interpolant automaton has 11 states [2018-07-24 12:12:48,023 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2018-07-24 12:12:48,023 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=60, Invalid=246, Unknown=0, NotChecked=0, Total=306 [2018-07-24 12:12:48,023 INFO L87 Difference]: Start difference. First operand 35758 states and 42165 transitions. Second operand 11 states. [2018-07-24 12:13:09,029 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-24 12:13:09,030 INFO L93 Difference]: Finished difference Result 113570 states and 144571 transitions. [2018-07-24 12:13:09,030 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 50 states. [2018-07-24 12:13:09,030 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 450 [2018-07-24 12:13:09,031 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-24 12:13:09,363 INFO L225 Difference]: With dead ends: 113570 [2018-07-24 12:13:09,363 INFO L226 Difference]: Without dead ends: 78069 [2018-07-24 12:13:09,488 INFO L573 BasicCegarLoop]: 0 DeclaredPredicates, 1876 GetRequests, 1812 SyntacticMatches, 3 SemanticMatches, 61 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1097 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=727, Invalid=3179, Unknown=0, NotChecked=0, Total=3906 [2018-07-24 12:13:09,541 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 78069 states. [2018-07-24 12:13:10,618 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 78069 to 74132. [2018-07-24 12:13:10,618 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 74132 states. [2018-07-24 12:13:10,806 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 74132 states to 74132 states and 87161 transitions. [2018-07-24 12:13:10,807 INFO L78 Accepts]: Start accepts. Automaton has 74132 states and 87161 transitions. Word has length 450 [2018-07-24 12:13:10,808 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-24 12:13:10,808 INFO L471 AbstractCegarLoop]: Abstraction has 74132 states and 87161 transitions. [2018-07-24 12:13:10,808 INFO L472 AbstractCegarLoop]: Interpolant automaton has 11 states. [2018-07-24 12:13:10,808 INFO L276 IsEmpty]: Start isEmpty. Operand 74132 states and 87161 transitions. [2018-07-24 12:13:10,840 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 539 [2018-07-24 12:13:10,840 INFO L345 BasicCegarLoop]: Found error trace [2018-07-24 12:13:10,841 INFO L353 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, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-07-24 12:13:10,841 INFO L414 AbstractCegarLoop]: === Iteration 12 === [__U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___false_unreach_call_c__calculate_outputErr0AssertViolationERROR_FUNCTION]=== [2018-07-24 12:13:10,841 INFO L82 PathProgramCache]: Analyzing trace with hash 1919738761, now seen corresponding path program 1 times [2018-07-24 12:13:10,841 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-07-24 12:13:10,842 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 12:13:10,842 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 12:13:10,842 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 12:13:10,843 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-07-24 12:13:10,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 12:13:11,265 WARN L169 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 4 [2018-07-24 12:13:11,630 INFO L134 CoverageAnalysis]: Checked inductivity of 385 backedges. 153 proven. 86 refuted. 0 times theorem prover too weak. 146 trivial. 0 not checked. [2018-07-24 12:13:11,630 INFO L297 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-07-24 12:13:11,631 INFO L191 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 10 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 10 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-07-24 12:13:11,639 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 12:13:11,639 INFO L288 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-07-24 12:13:11,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 12:13:11,833 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-07-24 12:13:12,041 INFO L134 CoverageAnalysis]: Checked inductivity of 385 backedges. 305 proven. 2 refuted. 0 times theorem prover too weak. 78 trivial. 0 not checked. [2018-07-24 12:13:12,041 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-07-24 12:13:12,715 INFO L134 CoverageAnalysis]: Checked inductivity of 385 backedges. 305 proven. 2 refuted. 0 times theorem prover too weak. 78 trivial. 0 not checked. [2018-07-24 12:13:12,736 INFO L297 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-07-24 12:13:12,736 INFO L191 anRefinementStrategy]: Switched to InterpolantGenerator mode CVC4_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4nyu Starting monitored process 11 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk --tlimit-per=12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 11 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk --tlimit-per=12000 [2018-07-24 12:13:12,756 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 12:13:12,756 INFO L288 anRefinementStrategy]: Using traceCheck mode CVC4_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-07-24 12:13:13,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 12:13:13,188 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-07-24 12:13:13,309 INFO L134 CoverageAnalysis]: Checked inductivity of 385 backedges. 305 proven. 2 refuted. 0 times theorem prover too weak. 78 trivial. 0 not checked. [2018-07-24 12:13:13,310 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-07-24 12:13:13,590 INFO L134 CoverageAnalysis]: Checked inductivity of 385 backedges. 305 proven. 2 refuted. 0 times theorem prover too weak. 78 trivial. 0 not checked. [2018-07-24 12:13:13,593 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 5 imperfect interpolant sequences. [2018-07-24 12:13:13,594 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 5, 5, 5, 5] total 13 [2018-07-24 12:13:13,594 INFO L251 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-07-24 12:13:13,595 INFO L450 AbstractCegarLoop]: Interpolant automaton has 11 states [2018-07-24 12:13:13,595 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2018-07-24 12:13:13,595 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=112, Unknown=0, NotChecked=0, Total=156 [2018-07-24 12:13:13,596 INFO L87 Difference]: Start difference. First operand 74132 states and 87161 transitions. Second operand 11 states. [2018-07-24 12:13:22,812 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-24 12:13:22,812 INFO L93 Difference]: Finished difference Result 152433 states and 182261 transitions. [2018-07-24 12:13:22,812 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2018-07-24 12:13:22,813 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 538 [2018-07-24 12:13:22,813 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-24 12:13:23,015 INFO L225 Difference]: With dead ends: 152433 [2018-07-24 12:13:23,015 INFO L226 Difference]: Without dead ends: 78625 [2018-07-24 12:13:23,189 INFO L573 BasicCegarLoop]: 0 DeclaredPredicates, 2191 GetRequests, 2158 SyntacticMatches, 7 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 154 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=204, Invalid=552, Unknown=0, NotChecked=0, Total=756 [2018-07-24 12:13:23,242 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 78625 states. [2018-07-24 12:13:24,211 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 78625 to 77810. [2018-07-24 12:13:24,211 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 77810 states. [2018-07-24 12:13:24,377 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 77810 states to 77810 states and 87193 transitions. [2018-07-24 12:13:24,378 INFO L78 Accepts]: Start accepts. Automaton has 77810 states and 87193 transitions. Word has length 538 [2018-07-24 12:13:24,379 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-24 12:13:24,379 INFO L471 AbstractCegarLoop]: Abstraction has 77810 states and 87193 transitions. [2018-07-24 12:13:24,379 INFO L472 AbstractCegarLoop]: Interpolant automaton has 11 states. [2018-07-24 12:13:24,379 INFO L276 IsEmpty]: Start isEmpty. Operand 77810 states and 87193 transitions. [2018-07-24 12:13:24,402 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 542 [2018-07-24 12:13:24,402 INFO L345 BasicCegarLoop]: Found error trace [2018-07-24 12:13:24,403 INFO L353 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, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-07-24 12:13:24,403 INFO L414 AbstractCegarLoop]: === Iteration 13 === [__U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___false_unreach_call_c__calculate_outputErr0AssertViolationERROR_FUNCTION]=== [2018-07-24 12:13:24,403 INFO L82 PathProgramCache]: Analyzing trace with hash 1867117720, now seen corresponding path program 1 times [2018-07-24 12:13:24,404 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-07-24 12:13:24,404 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 12:13:24,404 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 12:13:24,405 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 12:13:24,405 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-07-24 12:13:24,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 12:13:25,242 INFO L134 CoverageAnalysis]: Checked inductivity of 388 backedges. 131 proven. 108 refuted. 0 times theorem prover too weak. 149 trivial. 0 not checked. [2018-07-24 12:13:25,243 INFO L297 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-07-24 12:13:25,243 INFO L191 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 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 [2018-07-24 12:13:25,250 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 12:13:25,250 INFO L288 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-07-24 12:13:25,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 12:13:25,440 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-07-24 12:13:25,705 INFO L134 CoverageAnalysis]: Checked inductivity of 388 backedges. 361 proven. 2 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2018-07-24 12:13:25,706 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-07-24 12:13:26,507 INFO L134 CoverageAnalysis]: Checked inductivity of 388 backedges. 156 proven. 80 refuted. 0 times theorem prover too weak. 152 trivial. 0 not checked. [2018-07-24 12:13:26,527 INFO L297 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-07-24 12:13:26,527 INFO L191 anRefinementStrategy]: Switched to InterpolantGenerator mode CVC4_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4nyu Starting monitored process 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 [2018-07-24 12:13:26,542 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 12:13:26,542 INFO L288 anRefinementStrategy]: Using traceCheck mode CVC4_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-07-24 12:13:26,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 12:13:26,988 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-07-24 12:13:27,246 INFO L134 CoverageAnalysis]: Checked inductivity of 388 backedges. 288 proven. 75 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2018-07-24 12:13:27,246 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-07-24 12:13:27,673 INFO L134 CoverageAnalysis]: Checked inductivity of 388 backedges. 156 proven. 80 refuted. 0 times theorem prover too weak. 152 trivial. 0 not checked. [2018-07-24 12:13:27,675 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 5 imperfect interpolant sequences. [2018-07-24 12:13:27,675 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 5, 5, 7, 5] total 21 [2018-07-24 12:13:27,675 INFO L251 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-07-24 12:13:27,676 INFO L450 AbstractCegarLoop]: Interpolant automaton has 14 states [2018-07-24 12:13:27,677 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2018-07-24 12:13:27,677 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=77, Invalid=343, Unknown=0, NotChecked=0, Total=420 [2018-07-24 12:13:27,677 INFO L87 Difference]: Start difference. First operand 77810 states and 87193 transitions. Second operand 14 states. [2018-07-24 12:13:52,533 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-24 12:13:52,534 INFO L93 Difference]: Finished difference Result 165700 states and 193275 transitions. [2018-07-24 12:13:52,534 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 75 states. [2018-07-24 12:13:52,534 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 541 [2018-07-24 12:13:52,535 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-24 12:13:53,271 INFO L225 Difference]: With dead ends: 165700 [2018-07-24 12:13:53,271 INFO L226 Difference]: Without dead ends: 90388 [2018-07-24 12:13:53,380 INFO L573 BasicCegarLoop]: 0 DeclaredPredicates, 2280 GetRequests, 2189 SyntacticMatches, 4 SemanticMatches, 87 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2515 ImplicationChecksByTransitivity, 3.9s TimeCoverageRelationStatistics Valid=1360, Invalid=6472, Unknown=0, NotChecked=0, Total=7832 [2018-07-24 12:13:53,437 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 90388 states. [2018-07-24 12:13:54,440 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 90388 to 86979. [2018-07-24 12:13:54,440 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 86979 states. [2018-07-24 12:13:54,614 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 86979 states to 86979 states and 98470 transitions. [2018-07-24 12:13:54,616 INFO L78 Accepts]: Start accepts. Automaton has 86979 states and 98470 transitions. Word has length 541 [2018-07-24 12:13:54,617 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-24 12:13:54,617 INFO L471 AbstractCegarLoop]: Abstraction has 86979 states and 98470 transitions. [2018-07-24 12:13:54,617 INFO L472 AbstractCegarLoop]: Interpolant automaton has 14 states. [2018-07-24 12:13:54,617 INFO L276 IsEmpty]: Start isEmpty. Operand 86979 states and 98470 transitions. [2018-07-24 12:13:54,671 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 675 [2018-07-24 12:13:54,671 INFO L345 BasicCegarLoop]: Found error trace [2018-07-24 12:13:54,672 INFO L353 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-07-24 12:13:54,672 INFO L414 AbstractCegarLoop]: === Iteration 14 === [__U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___false_unreach_call_c__calculate_outputErr0AssertViolationERROR_FUNCTION]=== [2018-07-24 12:13:54,673 INFO L82 PathProgramCache]: Analyzing trace with hash -1191623000, now seen corresponding path program 1 times [2018-07-24 12:13:54,673 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-07-24 12:13:54,675 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 12:13:54,675 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 12:13:54,675 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 12:13:54,675 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-07-24 12:13:54,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 12:13:55,127 INFO L134 CoverageAnalysis]: Checked inductivity of 706 backedges. 105 proven. 0 refuted. 0 times theorem prover too weak. 601 trivial. 0 not checked. [2018-07-24 12:13:55,128 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-24 12:13:55,128 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-07-24 12:13:55,128 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-07-24 12:13:55,129 INFO L450 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-07-24 12:13:55,129 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-07-24 12:13:55,129 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-07-24 12:13:55,129 INFO L87 Difference]: Start difference. First operand 86979 states and 98470 transitions. Second operand 3 states. [2018-07-24 12:13:59,633 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-24 12:13:59,633 INFO L93 Difference]: Finished difference Result 199175 states and 230629 transitions. [2018-07-24 12:13:59,634 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-07-24 12:13:59,634 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 674 [2018-07-24 12:13:59,635 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-24 12:13:59,967 INFO L225 Difference]: With dead ends: 199175 [2018-07-24 12:13:59,968 INFO L226 Difference]: Without dead ends: 114684 [2018-07-24 12:14:00,196 INFO L573 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-07-24 12:14:00,262 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 114684 states. [2018-07-24 12:14:01,893 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 114684 to 113091. [2018-07-24 12:14:01,893 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 113091 states. [2018-07-24 12:14:02,302 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 113091 states to 113091 states and 127280 transitions. [2018-07-24 12:14:02,304 INFO L78 Accepts]: Start accepts. Automaton has 113091 states and 127280 transitions. Word has length 674 [2018-07-24 12:14:02,305 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-24 12:14:02,305 INFO L471 AbstractCegarLoop]: Abstraction has 113091 states and 127280 transitions. [2018-07-24 12:14:02,305 INFO L472 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-07-24 12:14:02,305 INFO L276 IsEmpty]: Start isEmpty. Operand 113091 states and 127280 transitions. [2018-07-24 12:14:02,369 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 684 [2018-07-24 12:14:02,369 INFO L345 BasicCegarLoop]: Found error trace [2018-07-24 12:14:02,370 INFO L353 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-07-24 12:14:02,370 INFO L414 AbstractCegarLoop]: === Iteration 15 === [__U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___false_unreach_call_c__calculate_outputErr0AssertViolationERROR_FUNCTION]=== [2018-07-24 12:14:02,372 INFO L82 PathProgramCache]: Analyzing trace with hash 1831869765, now seen corresponding path program 1 times [2018-07-24 12:14:02,372 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-07-24 12:14:02,373 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 12:14:02,373 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 12:14:02,373 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 12:14:02,373 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-07-24 12:14:02,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat Received shutdown request... [2018-07-24 12:14:03,781 INFO L134 CoverageAnalysis]: Checked inductivity of 763 backedges. 475 proven. 2 refuted. 0 times theorem prover too weak. 286 trivial. 0 not checked. [2018-07-24 12:14:03,781 INFO L297 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-07-24 12:14:03,782 INFO L191 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 14 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 14 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-07-24 12:14:03,790 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 12:14:03,790 INFO L288 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-07-24 12:14:04,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 12:14:04,027 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-07-24 12:14:04,046 INFO L177 TraceCheckSpWp]: Timeout while computing interpolants [2018-07-24 12:14:04,247 WARN L512 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-07-24 12:14:04,247 WARN L540 AbstractCegarLoop]: Verification canceled [2018-07-24 12:14:04,253 WARN L202 ceAbstractionStarter]: Timeout [2018-07-24 12:14:04,253 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.07 12:14:04 BoogieIcfgContainer [2018-07-24 12:14:04,254 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-07-24 12:14:04,254 INFO L168 Benchmark]: Toolchain (without parser) took 241318.22 ms. Allocated memory was 1.5 GB in the beginning and 4.0 GB in the end (delta: 2.4 GB). Free memory was 1.4 GB in the beginning and 2.8 GB in the end (delta: -1.4 GB). Peak memory consumption was 1.0 GB. Max. memory is 7.1 GB. [2018-07-24 12:14:04,256 INFO L168 Benchmark]: CDTParser took 0.20 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. [2018-07-24 12:14:04,256 INFO L168 Benchmark]: CACSL2BoogieTranslator took 1267.54 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: 126.8 MB). Peak memory consumption was 126.8 MB. Max. memory is 7.1 GB. [2018-07-24 12:14:04,257 INFO L168 Benchmark]: Boogie Procedure Inliner took 231.60 ms. Allocated memory is still 1.5 GB. Free memory was 1.3 GB in the beginning and 1.3 GB in the end (delta: 42.3 MB). Peak memory consumption was 42.3 MB. Max. memory is 7.1 GB. [2018-07-24 12:14:04,258 INFO L168 Benchmark]: Boogie Preprocessor took 630.80 ms. Allocated memory was 1.5 GB in the beginning and 2.4 GB in the end (delta: 892.9 MB). Free memory was 1.3 GB in the beginning and 2.3 GB in the end (delta: -1.1 GB). Peak memory consumption was 89.7 MB. Max. memory is 7.1 GB. [2018-07-24 12:14:04,258 INFO L168 Benchmark]: RCFGBuilder took 6964.20 ms. Allocated memory is still 2.4 GB. Free memory was 2.3 GB in the beginning and 2.0 GB in the end (delta: 323.4 MB). Peak memory consumption was 323.4 MB. Max. memory is 7.1 GB. [2018-07-24 12:14:04,259 INFO L168 Benchmark]: TraceAbstraction took 232218.95 ms. Allocated memory was 2.4 GB in the beginning and 4.0 GB in the end (delta: 1.5 GB). Free memory was 2.0 GB in the beginning and 2.8 GB in the end (delta: -854.4 MB). Peak memory consumption was 684.9 MB. Max. memory is 7.1 GB. [2018-07-24 12:14:04,264 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20 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 1267.54 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: 126.8 MB). Peak memory consumption was 126.8 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 231.60 ms. Allocated memory is still 1.5 GB. Free memory was 1.3 GB in the beginning and 1.3 GB in the end (delta: 42.3 MB). Peak memory consumption was 42.3 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 630.80 ms. Allocated memory was 1.5 GB in the beginning and 2.4 GB in the end (delta: 892.9 MB). Free memory was 1.3 GB in the beginning and 2.3 GB in the end (delta: -1.1 GB). Peak memory consumption was 89.7 MB. Max. memory is 7.1 GB. * RCFGBuilder took 6964.20 ms. Allocated memory is still 2.4 GB. Free memory was 2.3 GB in the beginning and 2.0 GB in the end (delta: 323.4 MB). Peak memory consumption was 323.4 MB. Max. memory is 7.1 GB. * TraceAbstraction took 232218.95 ms. Allocated memory was 2.4 GB in the beginning and 4.0 GB in the end (delta: 1.5 GB). Free memory was 2.0 GB in the beginning and 2.8 GB in the end (delta: -854.4 MB). Peak memory consumption was 684.9 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResultAtElement [Line: 79]: Timeout (TraceAbstraction) Unable to prove that call of __VERIFIER_error() unreachable (line 79). Cancelled while BasicCegarLoop was analyzing trace of length 684 with TraceHistMax 5, while TraceCheckSpWp was constructing forward predicates, while XnfDer was eliminating 1 quantified variables from 1 xjuncts. - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 438 locations, 1 error locations. TIMEOUT Result, 232.1s OverallTime, 15 OverallIterations, 5 TraceHistogramMax, 195.5s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 2965 SDtfs, 45079 SDslu, 5124 SDs, 0 SdLazy, 64570 SolverSat, 15079 SolverUnsat, 6 SolverUnknown, 0 SolverNotchecked, 160.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 10309 GetRequests, 9928 SyntacticMatches, 38 SemanticMatches, 343 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5804 ImplicationChecksByTransitivity, 17.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=113091occurred in iteration=14, 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: 9.0s AutomataMinimizationTime, 14 MinimizatonAttempts, 15022 StatesRemovedByMinimization, 14 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.4s SsaConstructionTime, 3.1s SatisfiabilityAnalysisTime, 19.1s InterpolantComputationTime, 9020 NumberOfCodeBlocks, 9020 NumberOfCodeBlocksAsserted, 26 NumberOfCheckSat, 13905 ConstructedInterpolants, 2 QuantifiedInterpolants, 24851305 SizeOfPredicates, 36 NumberOfNonLiveVariables, 7515 ConjunctsInSsa, 158 ConjunctsInUnsatCore, 38 InterpolantComputations, 10 PerfectInterpolantSequences, 8007/10605 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Written .csv to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/csv/Problem15_label25_false-unreach-call.c_svcomp-Reach-64bit-RubberTaipan_Default-OldIcfg.epf_AutomizerCInline.xml/Csv-Benchmark-0-2018-07-24_12-14-04-287.csv Written .csv to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/csv/Problem15_label25_false-unreach-call.c_svcomp-Reach-64bit-RubberTaipan_Default-OldIcfg.epf_AutomizerCInline.xml/Csv-TraceAbstractionBenchmarks-0-2018-07-24_12-14-04-287.csv Completed graceful shutdown