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_label00_false-unreach-call.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-dd2f093 [2018-07-24 12:07:40,794 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-07-24 12:07:40,796 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-07-24 12:07:40,813 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-07-24 12:07:40,813 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-07-24 12:07:40,815 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-07-24 12:07:40,816 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-07-24 12:07:40,819 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-07-24 12:07:40,820 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-07-24 12:07:40,821 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-07-24 12:07:40,822 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-07-24 12:07:40,822 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-07-24 12:07:40,823 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-07-24 12:07:40,824 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-07-24 12:07:40,827 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-07-24 12:07:40,828 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-07-24 12:07:40,829 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-07-24 12:07:40,830 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-07-24 12:07:40,835 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-07-24 12:07:40,836 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-07-24 12:07:40,838 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-07-24 12:07:40,839 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-07-24 12:07:40,845 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-07-24 12:07:40,846 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-07-24 12:07:40,846 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-07-24 12:07:40,847 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-07-24 12:07:40,848 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-07-24 12:07:40,849 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-07-24 12:07:40,850 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-07-24 12:07:40,851 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-07-24 12:07:40,851 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-07-24 12:07:40,852 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-07-24 12:07:40,856 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-07-24 12:07:40,856 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-07-24 12:07:40,859 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-07-24 12:07:40,859 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-07-24 12:07:40,860 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 12:07:40,887 INFO L110 SettingsManager]: Loading preferences was successful [2018-07-24 12:07:40,887 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-07-24 12:07:40,888 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-07-24 12:07:40,889 INFO L133 SettingsManager]: * User list type=DISABLED [2018-07-24 12:07:40,889 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-07-24 12:07:40,889 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-07-24 12:07:40,889 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-07-24 12:07:40,889 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-07-24 12:07:40,890 INFO L133 SettingsManager]: * Log string format=TERM [2018-07-24 12:07:40,890 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-07-24 12:07:40,890 INFO L133 SettingsManager]: * Interval Domain=false [2018-07-24 12:07:40,891 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-07-24 12:07:40,892 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-07-24 12:07:40,892 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-07-24 12:07:40,892 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-07-24 12:07:40,892 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-07-24 12:07:40,894 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-07-24 12:07:40,894 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-07-24 12:07:40,894 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-07-24 12:07:40,894 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-07-24 12:07:40,895 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-07-24 12:07:40,895 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-07-24 12:07:40,895 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-07-24 12:07:40,895 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-07-24 12:07:40,896 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-07-24 12:07:40,896 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-07-24 12:07:40,896 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-07-24 12:07:40,896 INFO L133 SettingsManager]: * Trace refinement strategy=RUBBER_TAIPAN [2018-07-24 12:07:40,896 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-07-24 12:07:40,897 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-07-24 12:07:40,897 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-07-24 12:07:40,897 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-07-24 12:07:40,897 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-07-24 12:07:40,970 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-07-24 12:07:40,987 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-07-24 12:07:40,991 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-07-24 12:07:40,992 INFO L271 PluginConnector]: Initializing CDTParser... [2018-07-24 12:07:40,993 INFO L276 PluginConnector]: CDTParser initialized [2018-07-24 12:07:40,993 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem15_label00_false-unreach-call.c [2018-07-24 12:07:41,355 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/01af197e1/f90a37ce59d743ec8813f03736131fa5/FLAG6456c2b48 [2018-07-24 12:07:41,761 INFO L276 CDTParser]: Found 1 translation units. [2018-07-24 12:07:41,762 INFO L158 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem15_label00_false-unreach-call.c [2018-07-24 12:07:41,794 INFO L324 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/01af197e1/f90a37ce59d743ec8813f03736131fa5/FLAG6456c2b48 [2018-07-24 12:07:41,820 INFO L332 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/01af197e1/f90a37ce59d743ec8813f03736131fa5 [2018-07-24 12:07:41,832 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-07-24 12:07:41,834 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-07-24 12:07:41,835 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-07-24 12:07:41,835 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-07-24 12:07:41,843 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-07-24 12:07:41,844 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.07 12:07:41" (1/1) ... [2018-07-24 12:07:41,849 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@783c4b7c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.07 12:07:41, skipping insertion in model container [2018-07-24 12:07:41,849 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.07 12:07:41" (1/1) ... [2018-07-24 12:07:42,123 INFO L179 PRDispatcher]: Starting pre-run dispatcher in SV-COMP mode [2018-07-24 12:07:42,725 INFO L175 PostProcessor]: Settings: Checked method=main [2018-07-24 12:07:42,743 INFO L422 MainDispatcher]: Starting main dispatcher in SV-COMP mode [2018-07-24 12:07:43,043 INFO L175 PostProcessor]: Settings: Checked method=main [2018-07-24 12:07:43,196 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.07 12:07:43 WrapperNode [2018-07-24 12:07:43,196 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-07-24 12:07:43,197 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-07-24 12:07:43,197 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-07-24 12:07:43,197 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-07-24 12:07:43,209 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.07 12:07:43" (1/1) ... [2018-07-24 12:07:43,265 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.07 12:07:43" (1/1) ... [2018-07-24 12:07:43,419 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-07-24 12:07:43,420 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-07-24 12:07:43,420 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-07-24 12:07:43,420 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-07-24 12:07:43,884 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.07 12:07:43" (1/1) ... [2018-07-24 12:07:43,885 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.07 12:07:43" (1/1) ... [2018-07-24 12:07:43,905 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.07 12:07:43" (1/1) ... [2018-07-24 12:07:43,906 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.07 12:07:43" (1/1) ... [2018-07-24 12:07:44,006 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.07 12:07:43" (1/1) ... [2018-07-24 12:07:44,038 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.07 12:07:43" (1/1) ... [2018-07-24 12:07:44,068 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.07 12:07:43" (1/1) ... [2018-07-24 12:07:44,105 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-07-24 12:07:44,106 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-07-24 12:07:44,106 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-07-24 12:07:44,106 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-07-24 12:07:44,107 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.07 12:07:43" (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 12:07:44,180 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-07-24 12:07:44,180 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-07-24 12:07:44,180 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-07-24 12:07:44,180 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-07-24 12:07:44,181 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-07-24 12:07:44,181 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-07-24 12:07:44,181 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 12:07:44,181 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 12:07:44,181 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 12:07:44,182 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 12:07:51,720 INFO L261 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-07-24 12:07:51,721 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.07 12:07:51 BoogieIcfgContainer [2018-07-24 12:07:51,721 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-07-24 12:07:51,722 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-07-24 12:07:51,722 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-07-24 12:07:51,726 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-07-24 12:07:51,726 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.07 12:07:41" (1/3) ... [2018-07-24 12:07:51,727 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@65ba793d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.07 12:07:51, skipping insertion in model container [2018-07-24 12:07:51,727 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.07 12:07:43" (2/3) ... [2018-07-24 12:07:51,727 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@65ba793d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.07 12:07:51, skipping insertion in model container [2018-07-24 12:07:51,728 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.07 12:07:51" (3/3) ... [2018-07-24 12:07:51,729 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem15_label00_false-unreach-call.c [2018-07-24 12:07:51,739 INFO L132 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-07-24 12:07:51,749 INFO L144 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-07-24 12:07:51,806 INFO L128 ementStrategyFactory]: Using default assertion order modulation [2018-07-24 12:07:51,807 INFO L373 AbstractCegarLoop]: Interprodecural is true [2018-07-24 12:07:51,807 INFO L374 AbstractCegarLoop]: Hoare is true [2018-07-24 12:07:51,807 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-07-24 12:07:51,807 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-07-24 12:07:51,807 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-07-24 12:07:51,808 INFO L378 AbstractCegarLoop]: Difference is false [2018-07-24 12:07:51,808 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-07-24 12:07:51,808 INFO L384 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-07-24 12:07:51,840 INFO L276 IsEmpty]: Start isEmpty. Operand 438 states. [2018-07-24 12:07:51,847 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2018-07-24 12:07:51,847 INFO L345 BasicCegarLoop]: Found error trace [2018-07-24 12:07:51,848 INFO L353 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-07-24 12:07:51,848 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 12:07:51,854 INFO L82 PathProgramCache]: Analyzing trace with hash -1505455351, now seen corresponding path program 1 times [2018-07-24 12:07:51,857 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-07-24 12:07:51,908 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 12:07:51,908 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 12:07:51,908 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 12:07:51,908 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-07-24 12:07:51,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 12:07:52,117 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 12:07:52,121 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-24 12:07:52,121 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-07-24 12:07:52,121 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-07-24 12:07:52,128 INFO L450 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-07-24 12:07:52,145 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-07-24 12:07:52,146 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-07-24 12:07:52,149 INFO L87 Difference]: Start difference. First operand 438 states. Second operand 3 states. [2018-07-24 12:07:58,220 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-24 12:07:58,221 INFO L93 Difference]: Finished difference Result 1188 states and 2146 transitions. [2018-07-24 12:07:58,225 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-07-24 12:07:58,226 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 13 [2018-07-24 12:07:58,227 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-24 12:07:58,252 INFO L225 Difference]: With dead ends: 1188 [2018-07-24 12:07:58,253 INFO L226 Difference]: Without dead ends: 748 [2018-07-24 12:07:58,263 INFO L573 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-07-24 12:07:58,283 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 748 states. [2018-07-24 12:07:58,382 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 748 to 746. [2018-07-24 12:07:58,383 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 746 states. [2018-07-24 12:07:58,389 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 746 states to 746 states and 1128 transitions. [2018-07-24 12:07:58,391 INFO L78 Accepts]: Start accepts. Automaton has 746 states and 1128 transitions. Word has length 13 [2018-07-24 12:07:58,391 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-24 12:07:58,391 INFO L471 AbstractCegarLoop]: Abstraction has 746 states and 1128 transitions. [2018-07-24 12:07:58,392 INFO L472 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-07-24 12:07:58,392 INFO L276 IsEmpty]: Start isEmpty. Operand 746 states and 1128 transitions. [2018-07-24 12:07:58,396 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2018-07-24 12:07:58,396 INFO L345 BasicCegarLoop]: Found error trace [2018-07-24 12:07:58,397 INFO L353 BasicCegarLoop]: trace histogram [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] [2018-07-24 12:07:58,397 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 12:07:58,397 INFO L82 PathProgramCache]: Analyzing trace with hash -254631235, now seen corresponding path program 1 times [2018-07-24 12:07:58,398 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-07-24 12:07:58,399 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 12:07:58,399 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 12:07:58,399 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 12:07:58,400 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-07-24 12:07:58,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 12:07:58,831 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-24 12:07:58,832 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-24 12:07:58,832 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-07-24 12:07:58,832 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-07-24 12:07:58,834 INFO L450 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-07-24 12:07:58,834 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-07-24 12:07:58,835 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-07-24 12:07:58,835 INFO L87 Difference]: Start difference. First operand 746 states and 1128 transitions. Second operand 5 states. [2018-07-24 12:08:16,015 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-24 12:08:16,016 INFO L93 Difference]: Finished difference Result 2394 states and 3589 transitions. [2018-07-24 12:08:16,026 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-07-24 12:08:16,027 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 83 [2018-07-24 12:08:16,027 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-24 12:08:16,041 INFO L225 Difference]: With dead ends: 2394 [2018-07-24 12:08:16,041 INFO L226 Difference]: Without dead ends: 1654 [2018-07-24 12:08:16,047 INFO L573 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2018-07-24 12:08:16,049 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1654 states. [2018-07-24 12:08:16,117 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1654 to 1646. [2018-07-24 12:08:16,117 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1646 states. [2018-07-24 12:08:16,126 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1646 states to 1646 states and 2402 transitions. [2018-07-24 12:08:16,126 INFO L78 Accepts]: Start accepts. Automaton has 1646 states and 2402 transitions. Word has length 83 [2018-07-24 12:08:16,127 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-24 12:08:16,127 INFO L471 AbstractCegarLoop]: Abstraction has 1646 states and 2402 transitions. [2018-07-24 12:08:16,127 INFO L472 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-07-24 12:08:16,127 INFO L276 IsEmpty]: Start isEmpty. Operand 1646 states and 2402 transitions. [2018-07-24 12:08:16,131 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2018-07-24 12:08:16,131 INFO L345 BasicCegarLoop]: Found error trace [2018-07-24 12:08:16,131 INFO L353 BasicCegarLoop]: trace histogram [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] [2018-07-24 12:08:16,134 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 12:08:16,134 INFO L82 PathProgramCache]: Analyzing trace with hash 1382310304, now seen corresponding path program 1 times [2018-07-24 12:08:16,134 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-07-24 12:08:16,135 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 12:08:16,136 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 12:08:16,136 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 12:08:16,136 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-07-24 12:08:16,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 12:08:16,355 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-24 12:08:16,355 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-24 12:08:16,356 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-07-24 12:08:16,356 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-07-24 12:08:16,356 INFO L450 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-07-24 12:08:16,357 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-07-24 12:08:16,357 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-07-24 12:08:16,357 INFO L87 Difference]: Start difference. First operand 1646 states and 2402 transitions. Second operand 6 states. [2018-07-24 12:08:25,351 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-24 12:08:25,352 INFO L93 Difference]: Finished difference Result 4250 states and 6736 transitions. [2018-07-24 12:08:25,356 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-07-24 12:08:25,357 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 88 [2018-07-24 12:08:25,358 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-24 12:08:25,383 INFO L225 Difference]: With dead ends: 4250 [2018-07-24 12:08:25,383 INFO L226 Difference]: Without dead ends: 2919 [2018-07-24 12:08:25,391 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 12:08:25,394 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2919 states. [2018-07-24 12:08:25,484 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2919 to 2871. [2018-07-24 12:08:25,484 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2871 states. [2018-07-24 12:08:25,496 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2871 states to 2871 states and 4002 transitions. [2018-07-24 12:08:25,497 INFO L78 Accepts]: Start accepts. Automaton has 2871 states and 4002 transitions. Word has length 88 [2018-07-24 12:08:25,497 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-24 12:08:25,497 INFO L471 AbstractCegarLoop]: Abstraction has 2871 states and 4002 transitions. [2018-07-24 12:08:25,498 INFO L472 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-07-24 12:08:25,498 INFO L276 IsEmpty]: Start isEmpty. Operand 2871 states and 4002 transitions. [2018-07-24 12:08:25,499 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2018-07-24 12:08:25,499 INFO L345 BasicCegarLoop]: Found error trace [2018-07-24 12:08:25,500 INFO L353 BasicCegarLoop]: trace histogram [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] [2018-07-24 12:08:25,500 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 12:08:25,500 INFO L82 PathProgramCache]: Analyzing trace with hash 1185194156, now seen corresponding path program 1 times [2018-07-24 12:08:25,500 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-07-24 12:08:25,501 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 12:08:25,502 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 12:08:25,502 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 12:08:25,502 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-07-24 12:08:25,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 12:08:25,634 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-24 12:08:25,634 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-24 12:08:25,635 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-07-24 12:08:25,635 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-07-24 12:08:25,635 INFO L450 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-07-24 12:08:25,636 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-07-24 12:08:25,636 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-07-24 12:08:25,636 INFO L87 Difference]: Start difference. First operand 2871 states and 4002 transitions. Second operand 3 states. [2018-07-24 12:08:31,278 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-24 12:08:31,279 INFO L93 Difference]: Finished difference Result 6354 states and 9172 transitions. [2018-07-24 12:08:31,279 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-07-24 12:08:31,280 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 94 [2018-07-24 12:08:31,280 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-24 12:08:31,300 INFO L225 Difference]: With dead ends: 6354 [2018-07-24 12:08:31,300 INFO L226 Difference]: Without dead ends: 3798 [2018-07-24 12:08:31,312 INFO L573 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-07-24 12:08:31,315 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3798 states. [2018-07-24 12:08:31,387 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3798 to 3798. [2018-07-24 12:08:31,388 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3798 states. [2018-07-24 12:08:31,401 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3798 states to 3798 states and 5085 transitions. [2018-07-24 12:08:31,402 INFO L78 Accepts]: Start accepts. Automaton has 3798 states and 5085 transitions. Word has length 94 [2018-07-24 12:08:31,403 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-24 12:08:31,403 INFO L471 AbstractCegarLoop]: Abstraction has 3798 states and 5085 transitions. [2018-07-24 12:08:31,403 INFO L472 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-07-24 12:08:31,403 INFO L276 IsEmpty]: Start isEmpty. Operand 3798 states and 5085 transitions. [2018-07-24 12:08:31,405 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2018-07-24 12:08:31,405 INFO L345 BasicCegarLoop]: Found error trace [2018-07-24 12:08:31,405 INFO L353 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-07-24 12:08:31,405 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 12:08:31,405 INFO L82 PathProgramCache]: Analyzing trace with hash 1950824054, now seen corresponding path program 1 times [2018-07-24 12:08:31,406 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-07-24 12:08:31,406 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 12:08:31,407 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 12:08:31,407 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 12:08:31,407 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-07-24 12:08:31,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 12:08:31,568 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-24 12:08:31,569 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-24 12:08:31,569 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-07-24 12:08:31,569 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-07-24 12:08:31,570 INFO L450 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-07-24 12:08:31,570 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-07-24 12:08:31,570 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-07-24 12:08:31,571 INFO L87 Difference]: Start difference. First operand 3798 states and 5085 transitions. Second operand 6 states. [2018-07-24 12:08:37,841 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-24 12:08:37,841 INFO L93 Difference]: Finished difference Result 7604 states and 10325 transitions. [2018-07-24 12:08:37,843 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-07-24 12:08:37,843 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 100 [2018-07-24 12:08:37,843 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-24 12:08:37,866 INFO L225 Difference]: With dead ends: 7604 [2018-07-24 12:08:37,866 INFO L226 Difference]: Without dead ends: 4120 [2018-07-24 12:08:37,881 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 12:08:37,886 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4120 states. [2018-07-24 12:08:37,983 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4120 to 4007. [2018-07-24 12:08:37,983 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4007 states. [2018-07-24 12:08:37,994 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4007 states to 4007 states and 5161 transitions. [2018-07-24 12:08:37,994 INFO L78 Accepts]: Start accepts. Automaton has 4007 states and 5161 transitions. Word has length 100 [2018-07-24 12:08:37,995 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-24 12:08:37,995 INFO L471 AbstractCegarLoop]: Abstraction has 4007 states and 5161 transitions. [2018-07-24 12:08:37,995 INFO L472 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-07-24 12:08:37,995 INFO L276 IsEmpty]: Start isEmpty. Operand 4007 states and 5161 transitions. [2018-07-24 12:08:38,000 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2018-07-24 12:08:38,001 INFO L345 BasicCegarLoop]: Found error trace [2018-07-24 12:08:38,001 INFO L353 BasicCegarLoop]: trace histogram [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] [2018-07-24 12:08:38,001 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 12:08:38,002 INFO L82 PathProgramCache]: Analyzing trace with hash -935628673, now seen corresponding path program 1 times [2018-07-24 12:08:38,002 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-07-24 12:08:38,003 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 12:08:38,003 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 12:08:38,003 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 12:08:38,003 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-07-24 12:08:38,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 12:08:38,211 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 4 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-24 12:08:38,211 INFO L297 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-07-24 12:08:38,212 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 12:08:38,223 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 12:08:38,223 INFO L288 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-07-24 12:08:38,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 12:08:38,321 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-07-24 12:08:38,524 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 4 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-24 12:08:38,525 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-07-24 12:08:39,415 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-24 12:08:39,447 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 2 imperfect interpolant sequences. [2018-07-24 12:08:39,447 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [6, 6] total 11 [2018-07-24 12:08:39,447 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-07-24 12:08:39,448 INFO L450 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-07-24 12:08:39,448 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-07-24 12:08:39,448 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=72, Unknown=0, NotChecked=0, Total=110 [2018-07-24 12:08:39,449 INFO L87 Difference]: Start difference. First operand 4007 states and 5161 transitions. Second operand 6 states. [2018-07-24 12:08:47,601 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-24 12:08:47,601 INFO L93 Difference]: Finished difference Result 12745 states and 17259 transitions. [2018-07-24 12:08:47,603 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-07-24 12:08:47,603 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 109 [2018-07-24 12:08:47,603 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-24 12:08:47,652 INFO L225 Difference]: With dead ends: 12745 [2018-07-24 12:08:47,652 INFO L226 Difference]: Without dead ends: 9052 [2018-07-24 12:08:47,667 INFO L573 BasicCegarLoop]: 0 DeclaredPredicates, 225 GetRequests, 215 SyntacticMatches, 1 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=38, Invalid=72, Unknown=0, NotChecked=0, Total=110 [2018-07-24 12:08:47,673 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9052 states. [2018-07-24 12:08:47,835 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9052 to 8996. [2018-07-24 12:08:47,836 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8996 states. [2018-07-24 12:08:47,857 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8996 states to 8996 states and 11752 transitions. [2018-07-24 12:08:47,857 INFO L78 Accepts]: Start accepts. Automaton has 8996 states and 11752 transitions. Word has length 109 [2018-07-24 12:08:47,858 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-24 12:08:47,858 INFO L471 AbstractCegarLoop]: Abstraction has 8996 states and 11752 transitions. [2018-07-24 12:08:47,858 INFO L472 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-07-24 12:08:47,858 INFO L276 IsEmpty]: Start isEmpty. Operand 8996 states and 11752 transitions. [2018-07-24 12:08:47,862 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 159 [2018-07-24 12:08:47,862 INFO L345 BasicCegarLoop]: Found error trace [2018-07-24 12:08:47,862 INFO L353 BasicCegarLoop]: trace histogram [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] [2018-07-24 12:08:47,863 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 12:08:47,863 INFO L82 PathProgramCache]: Analyzing trace with hash -1292756835, now seen corresponding path program 1 times [2018-07-24 12:08:47,863 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-07-24 12:08:47,864 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 12:08:47,864 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 12:08:47,864 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 12:08:47,864 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-07-24 12:08:47,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 12:08:48,034 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-24 12:08:48,034 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-24 12:08:48,035 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-07-24 12:08:48,035 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-07-24 12:08:48,035 INFO L450 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-07-24 12:08:48,036 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-07-24 12:08:48,036 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-07-24 12:08:48,036 INFO L87 Difference]: Start difference. First operand 8996 states and 11752 transitions. Second operand 3 states. [2018-07-24 12:08:51,043 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-24 12:08:51,044 INFO L93 Difference]: Finished difference Result 17682 states and 23224 transitions. [2018-07-24 12:08:51,045 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-07-24 12:08:51,045 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 158 [2018-07-24 12:08:51,045 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-24 12:08:51,089 INFO L225 Difference]: With dead ends: 17682 [2018-07-24 12:08:51,090 INFO L226 Difference]: Without dead ends: 9000 [2018-07-24 12:08:51,119 INFO L573 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-07-24 12:08:51,128 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9000 states. [2018-07-24 12:08:51,299 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9000 to 8996. [2018-07-24 12:08:51,299 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8996 states. [2018-07-24 12:08:51,320 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8996 states to 8996 states and 11174 transitions. [2018-07-24 12:08:51,321 INFO L78 Accepts]: Start accepts. Automaton has 8996 states and 11174 transitions. Word has length 158 [2018-07-24 12:08:51,321 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-24 12:08:51,321 INFO L471 AbstractCegarLoop]: Abstraction has 8996 states and 11174 transitions. [2018-07-24 12:08:51,322 INFO L472 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-07-24 12:08:51,322 INFO L276 IsEmpty]: Start isEmpty. Operand 8996 states and 11174 transitions. [2018-07-24 12:08:51,326 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 174 [2018-07-24 12:08:51,326 INFO L345 BasicCegarLoop]: Found error trace [2018-07-24 12:08:51,326 INFO L353 BasicCegarLoop]: trace histogram [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] [2018-07-24 12:08:51,326 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 12:08:51,327 INFO L82 PathProgramCache]: Analyzing trace with hash 782052261, now seen corresponding path program 1 times [2018-07-24 12:08:51,327 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-07-24 12:08:51,329 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 12:08:51,329 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 12:08:51,329 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 12:08:51,329 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-07-24 12:08:51,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 12:08:51,844 WARN L169 SmtUtils]: Spent 366.00 ms on a formula simplification. DAG size of input: 18 DAG size of output: 12 [2018-07-24 12:08:52,128 INFO L134 CoverageAnalysis]: Checked inductivity of 91 backedges. 12 proven. 74 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2018-07-24 12:08:52,129 INFO L297 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-07-24 12:08:52,129 INFO L191 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-07-24 12:08:52,138 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 12:08:52,138 INFO L288 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-07-24 12:08:52,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 12:08:52,227 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-07-24 12:08:52,703 INFO L134 CoverageAnalysis]: Checked inductivity of 91 backedges. 84 proven. 0 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2018-07-24 12:08:52,703 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-07-24 12:08:53,463 INFO L134 CoverageAnalysis]: Checked inductivity of 91 backedges. 12 proven. 74 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2018-07-24 12:08:53,483 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 2 imperfect interpolant sequences. [2018-07-24 12:08:53,484 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [6, 5] total 11 [2018-07-24 12:08:53,484 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-07-24 12:08:53,484 INFO L450 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-07-24 12:08:53,485 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-07-24 12:08:53,485 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=81, Unknown=0, NotChecked=0, Total=110 [2018-07-24 12:08:53,485 INFO L87 Difference]: Start difference. First operand 8996 states and 11174 transitions. Second operand 5 states. [2018-07-24 12:09:06,453 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-24 12:09:06,453 INFO L93 Difference]: Finished difference Result 19532 states and 24757 transitions. [2018-07-24 12:09:06,454 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-07-24 12:09:06,454 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 173 [2018-07-24 12:09:06,455 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-24 12:09:06,489 INFO L225 Difference]: With dead ends: 19532 [2018-07-24 12:09:06,490 INFO L226 Difference]: Without dead ends: 10850 [2018-07-24 12:09:06,514 INFO L573 BasicCegarLoop]: 0 DeclaredPredicates, 354 GetRequests, 341 SyntacticMatches, 2 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=42, Invalid=114, Unknown=0, NotChecked=0, Total=156 [2018-07-24 12:09:06,523 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10850 states. [2018-07-24 12:09:06,681 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10850 to 10769. [2018-07-24 12:09:06,682 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10769 states. [2018-07-24 12:09:06,711 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10769 states to 10769 states and 13659 transitions. [2018-07-24 12:09:06,711 INFO L78 Accepts]: Start accepts. Automaton has 10769 states and 13659 transitions. Word has length 173 [2018-07-24 12:09:06,712 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-24 12:09:06,712 INFO L471 AbstractCegarLoop]: Abstraction has 10769 states and 13659 transitions. [2018-07-24 12:09:06,712 INFO L472 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-07-24 12:09:06,712 INFO L276 IsEmpty]: Start isEmpty. Operand 10769 states and 13659 transitions. [2018-07-24 12:09:06,715 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 183 [2018-07-24 12:09:06,715 INFO L345 BasicCegarLoop]: Found error trace [2018-07-24 12:09:06,715 INFO L353 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 12:09:06,715 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 12:09:06,716 INFO L82 PathProgramCache]: Analyzing trace with hash 183763942, now seen corresponding path program 1 times [2018-07-24 12:09:06,716 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-07-24 12:09:06,717 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 12:09:06,717 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 12:09:06,717 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 12:09:06,717 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-07-24 12:09:06,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 12:09:07,229 INFO L134 CoverageAnalysis]: Checked inductivity of 85 backedges. 13 proven. 66 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2018-07-24 12:09:07,229 INFO L297 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-07-24 12:09:07,230 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 12:09:07,237 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 12:09:07,238 INFO L288 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-07-24 12:09:07,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 12:09:07,312 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-07-24 12:09:07,379 INFO L134 CoverageAnalysis]: Checked inductivity of 85 backedges. 13 proven. 2 refuted. 0 times theorem prover too weak. 70 trivial. 0 not checked. [2018-07-24 12:09:07,379 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-07-24 12:09:07,706 INFO L134 CoverageAnalysis]: Checked inductivity of 85 backedges. 15 proven. 0 refuted. 0 times theorem prover too weak. 70 trivial. 0 not checked. [2018-07-24 12:09:07,726 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 2 imperfect interpolant sequences. [2018-07-24 12:09:07,727 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [6, 5] total 9 [2018-07-24 12:09:07,727 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-07-24 12:09:07,727 INFO L450 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-07-24 12:09:07,727 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-07-24 12:09:07,728 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=46, Unknown=0, NotChecked=0, Total=72 [2018-07-24 12:09:07,728 INFO L87 Difference]: Start difference. First operand 10769 states and 13659 transitions. Second operand 5 states. [2018-07-24 12:09:13,279 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-24 12:09:13,279 INFO L93 Difference]: Finished difference Result 24352 states and 31716 transitions. [2018-07-24 12:09:13,282 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-07-24 12:09:13,283 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 182 [2018-07-24 12:09:13,283 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-24 12:09:13,338 INFO L225 Difference]: With dead ends: 24352 [2018-07-24 12:09:13,338 INFO L226 Difference]: Without dead ends: 13897 [2018-07-24 12:09:13,354 INFO L573 BasicCegarLoop]: 0 DeclaredPredicates, 373 GetRequests, 362 SyntacticMatches, 3 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=33, Invalid=57, Unknown=0, NotChecked=0, Total=90 [2018-07-24 12:09:13,366 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13897 states. [2018-07-24 12:09:13,575 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13897 to 12960. [2018-07-24 12:09:13,576 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12960 states. [2018-07-24 12:09:13,607 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12960 states to 12960 states and 15282 transitions. [2018-07-24 12:09:13,608 INFO L78 Accepts]: Start accepts. Automaton has 12960 states and 15282 transitions. Word has length 182 [2018-07-24 12:09:13,608 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-24 12:09:13,609 INFO L471 AbstractCegarLoop]: Abstraction has 12960 states and 15282 transitions. [2018-07-24 12:09:13,609 INFO L472 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-07-24 12:09:13,609 INFO L276 IsEmpty]: Start isEmpty. Operand 12960 states and 15282 transitions. [2018-07-24 12:09:13,619 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 270 [2018-07-24 12:09:13,619 INFO L345 BasicCegarLoop]: Found error trace [2018-07-24 12:09:13,620 INFO L353 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2018-07-24 12:09:13,620 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 12:09:13,620 INFO L82 PathProgramCache]: Analyzing trace with hash 872632603, now seen corresponding path program 1 times [2018-07-24 12:09:13,621 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-07-24 12:09:13,621 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 12:09:13,622 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 12:09:13,622 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 12:09:13,622 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-07-24 12:09:13,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 12:09:14,746 WARN L169 SmtUtils]: Spent 164.00 ms on a formula simplification that was a NOOP. DAG size: 16 [2018-07-24 12:09:15,130 WARN L169 SmtUtils]: Spent 241.00 ms on a formula simplification that was a NOOP. DAG size: 28 [2018-07-24 12:09:15,310 INFO L134 CoverageAnalysis]: Checked inductivity of 257 backedges. 30 proven. 222 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2018-07-24 12:09:15,311 INFO L297 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-07-24 12:09:15,311 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 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-07-24 12:09:15,319 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 12:09:15,320 INFO L288 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-07-24 12:09:15,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 12:09:15,423 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-07-24 12:09:15,834 INFO L134 CoverageAnalysis]: Checked inductivity of 257 backedges. 224 proven. 26 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2018-07-24 12:09:15,834 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-07-24 12:09:15,958 WARN L169 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 22 DAG size of output: 20 [2018-07-24 12:09:16,291 INFO L134 CoverageAnalysis]: Checked inductivity of 257 backedges. 28 proven. 224 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2018-07-24 12:09:16,313 INFO L297 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-07-24 12:09:16,314 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 6 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 6 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk --tlimit-per=12000 [2018-07-24 12:09:16,330 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 12:09:16,330 INFO L288 anRefinementStrategy]: Using traceCheck mode CVC4_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-07-24 12:09:16,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 12:09:16,582 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-07-24 12:09:16,822 INFO L134 CoverageAnalysis]: Checked inductivity of 257 backedges. 174 proven. 26 refuted. 0 times theorem prover too weak. 57 trivial. 0 not checked. [2018-07-24 12:09:16,822 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-07-24 12:09:17,634 INFO L134 CoverageAnalysis]: Checked inductivity of 257 backedges. 28 proven. 224 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2018-07-24 12:09:17,636 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 5 imperfect interpolant sequences. [2018-07-24 12:09:17,636 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 9, 9, 8, 9] total 24 [2018-07-24 12:09:17,636 INFO L251 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-07-24 12:09:17,637 INFO L450 AbstractCegarLoop]: Interpolant automaton has 14 states [2018-07-24 12:09:17,637 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2018-07-24 12:09:17,638 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=120, Invalid=432, Unknown=0, NotChecked=0, Total=552 [2018-07-24 12:09:17,638 INFO L87 Difference]: Start difference. First operand 12960 states and 15282 transitions. Second operand 14 states. [2018-07-24 12:09:35,113 WARN L169 SmtUtils]: Spent 341.00 ms on a formula simplification. DAG size of input: 30 DAG size of output: 16 [2018-07-24 12:09:46,073 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-24 12:09:46,074 INFO L93 Difference]: Finished difference Result 29150 states and 35037 transitions. [2018-07-24 12:09:46,074 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 40 states. [2018-07-24 12:09:46,074 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 269 [2018-07-24 12:09:46,075 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-24 12:09:46,134 INFO L225 Difference]: With dead ends: 29150 [2018-07-24 12:09:46,135 INFO L226 Difference]: Without dead ends: 15564 [2018-07-24 12:09:46,166 INFO L573 BasicCegarLoop]: 0 DeclaredPredicates, 1152 GetRequests, 1090 SyntacticMatches, 6 SemanticMatches, 56 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 916 ImplicationChecksByTransitivity, 3.9s TimeCoverageRelationStatistics Valid=779, Invalid=2527, Unknown=0, NotChecked=0, Total=3306 [2018-07-24 12:09:46,178 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15564 states. [2018-07-24 12:09:46,426 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15564 to 15054. [2018-07-24 12:09:46,426 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15054 states. [2018-07-24 12:09:46,469 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15054 states to 15054 states and 17893 transitions. [2018-07-24 12:09:46,470 INFO L78 Accepts]: Start accepts. Automaton has 15054 states and 17893 transitions. Word has length 269 [2018-07-24 12:09:46,470 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-24 12:09:46,471 INFO L471 AbstractCegarLoop]: Abstraction has 15054 states and 17893 transitions. [2018-07-24 12:09:46,471 INFO L472 AbstractCegarLoop]: Interpolant automaton has 14 states. [2018-07-24 12:09:46,471 INFO L276 IsEmpty]: Start isEmpty. Operand 15054 states and 17893 transitions. [2018-07-24 12:09:46,482 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 355 [2018-07-24 12:09:46,482 INFO L345 BasicCegarLoop]: Found error trace [2018-07-24 12:09:46,483 INFO L353 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-07-24 12:09:46,483 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 12:09:46,484 INFO L82 PathProgramCache]: Analyzing trace with hash 1105001320, now seen corresponding path program 1 times [2018-07-24 12:09:46,484 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-07-24 12:09:46,485 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 12:09:46,485 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 12:09:46,485 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 12:09:46,485 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-07-24 12:09:46,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 12:09:47,293 INFO L134 CoverageAnalysis]: Checked inductivity of 257 backedges. 30 proven. 222 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2018-07-24 12:09:47,293 INFO L297 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-07-24 12:09:47,294 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 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-07-24 12:09:47,301 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 12:09:47,302 INFO L288 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-07-24 12:09:47,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 12:09:47,441 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-07-24 12:09:47,901 INFO L134 CoverageAnalysis]: Checked inductivity of 257 backedges. 224 proven. 26 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2018-07-24 12:09:47,902 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-07-24 12:09:48,402 INFO L134 CoverageAnalysis]: Checked inductivity of 257 backedges. 28 proven. 224 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2018-07-24 12:09:48,423 INFO L297 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-07-24 12:09:48,424 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 8 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 8 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk --tlimit-per=12000 [2018-07-24 12:09:48,441 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 12:09:48,441 INFO L288 anRefinementStrategy]: Using traceCheck mode CVC4_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-07-24 12:09:48,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 12:09:48,747 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-07-24 12:09:49,141 INFO L134 CoverageAnalysis]: Checked inductivity of 257 backedges. 174 proven. 26 refuted. 0 times theorem prover too weak. 57 trivial. 0 not checked. [2018-07-24 12:09:49,142 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-07-24 12:09:49,688 INFO L134 CoverageAnalysis]: Checked inductivity of 257 backedges. 28 proven. 224 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2018-07-24 12:09:49,690 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 5 imperfect interpolant sequences. [2018-07-24 12:09:49,691 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 9, 9, 8, 9] total 24 [2018-07-24 12:09:49,691 INFO L251 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-07-24 12:09:49,693 INFO L450 AbstractCegarLoop]: Interpolant automaton has 14 states [2018-07-24 12:09:49,693 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2018-07-24 12:09:49,694 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=117, Invalid=435, Unknown=0, NotChecked=0, Total=552 [2018-07-24 12:09:49,694 INFO L87 Difference]: Start difference. First operand 15054 states and 17893 transitions. Second operand 14 states. [2018-07-24 12:10:11,161 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-24 12:10:11,161 INFO L93 Difference]: Finished difference Result 32238 states and 38566 transitions. [2018-07-24 12:10:11,162 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 43 states. [2018-07-24 12:10:11,162 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 354 [2018-07-24 12:10:11,163 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-24 12:10:11,217 INFO L225 Difference]: With dead ends: 32238 [2018-07-24 12:10:11,218 INFO L226 Difference]: Without dead ends: 16167 [2018-07-24 12:10:11,253 INFO L573 BasicCegarLoop]: 0 DeclaredPredicates, 1498 GetRequests, 1430 SyntacticMatches, 9 SemanticMatches, 59 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 999 ImplicationChecksByTransitivity, 2.5s TimeCoverageRelationStatistics Valid=862, Invalid=2798, Unknown=0, NotChecked=0, Total=3660 [2018-07-24 12:10:11,265 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16167 states. [2018-07-24 12:10:11,483 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16167 to 15599. [2018-07-24 12:10:11,483 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15599 states. [2018-07-24 12:10:11,518 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15599 states to 15599 states and 18275 transitions. [2018-07-24 12:10:11,519 INFO L78 Accepts]: Start accepts. Automaton has 15599 states and 18275 transitions. Word has length 354 [2018-07-24 12:10:11,519 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-24 12:10:11,519 INFO L471 AbstractCegarLoop]: Abstraction has 15599 states and 18275 transitions. [2018-07-24 12:10:11,519 INFO L472 AbstractCegarLoop]: Interpolant automaton has 14 states. [2018-07-24 12:10:11,519 INFO L276 IsEmpty]: Start isEmpty. Operand 15599 states and 18275 transitions. [2018-07-24 12:10:11,528 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 387 [2018-07-24 12:10:11,529 INFO L345 BasicCegarLoop]: Found error trace [2018-07-24 12:10:11,529 INFO L353 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 12:10:11,530 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 12:10:11,531 INFO L82 PathProgramCache]: Analyzing trace with hash 1571080663, now seen corresponding path program 1 times [2018-07-24 12:10:11,531 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-07-24 12:10:11,534 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 12:10:11,534 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 12:10:11,534 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 12:10:11,534 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-07-24 12:10:11,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 12:10:12,220 INFO L134 CoverageAnalysis]: Checked inductivity of 98 backedges. 96 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-24 12:10:12,221 INFO L297 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-07-24 12:10:12,221 INFO L191 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 9 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 9 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-07-24 12:10:12,239 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 12:10:12,239 INFO L288 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-07-24 12:10:12,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 12:10:12,402 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-07-24 12:10:12,709 INFO L134 CoverageAnalysis]: Checked inductivity of 98 backedges. 96 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-24 12:10:12,710 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-07-24 12:10:12,849 INFO L134 CoverageAnalysis]: Checked inductivity of 98 backedges. 96 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-24 12:10:12,871 INFO L297 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-07-24 12:10:12,871 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 10 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 10 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk --tlimit-per=12000 [2018-07-24 12:10:12,890 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 12:10:12,890 INFO L288 anRefinementStrategy]: Using traceCheck mode CVC4_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-07-24 12:10:13,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 12:10:13,222 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-07-24 12:10:13,305 INFO L134 CoverageAnalysis]: Checked inductivity of 98 backedges. 96 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-24 12:10:13,305 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-07-24 12:10:13,460 WARN L169 SmtUtils]: Spent 103.00 ms on a formula simplification that was a NOOP. DAG size: 8 [2018-07-24 12:10:14,094 INFO L134 CoverageAnalysis]: Checked inductivity of 98 backedges. 96 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-24 12:10:14,097 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 5 imperfect interpolant sequences. [2018-07-24 12:10:14,097 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 5, 5, 5, 5] total 12 [2018-07-24 12:10:14,098 INFO L251 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-07-24 12:10:14,099 INFO L450 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-07-24 12:10:14,099 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-07-24 12:10:14,099 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=90, Unknown=0, NotChecked=0, Total=132 [2018-07-24 12:10:14,099 INFO L87 Difference]: Start difference. First operand 15599 states and 18275 transitions. Second operand 9 states. [2018-07-24 12:10:21,216 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-24 12:10:21,217 INFO L93 Difference]: Finished difference Result 37209 states and 46063 transitions. [2018-07-24 12:10:21,217 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2018-07-24 12:10:21,217 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 386 [2018-07-24 12:10:21,218 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-24 12:10:21,295 INFO L225 Difference]: With dead ends: 37209 [2018-07-24 12:10:21,295 INFO L226 Difference]: Without dead ends: 21929 [2018-07-24 12:10:21,356 INFO L573 BasicCegarLoop]: 0 DeclaredPredicates, 1562 GetRequests, 1542 SyntacticMatches, 1 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=140, Invalid=280, Unknown=0, NotChecked=0, Total=420 [2018-07-24 12:10:21,373 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21929 states. [2018-07-24 12:10:21,752 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21929 to 21406. [2018-07-24 12:10:21,752 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21406 states. [2018-07-24 12:10:21,808 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21406 states to 21406 states and 24961 transitions. [2018-07-24 12:10:21,809 INFO L78 Accepts]: Start accepts. Automaton has 21406 states and 24961 transitions. Word has length 386 [2018-07-24 12:10:21,810 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-24 12:10:21,810 INFO L471 AbstractCegarLoop]: Abstraction has 21406 states and 24961 transitions. [2018-07-24 12:10:21,810 INFO L472 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-07-24 12:10:21,810 INFO L276 IsEmpty]: Start isEmpty. Operand 21406 states and 24961 transitions. [2018-07-24 12:10:21,829 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 469 [2018-07-24 12:10:21,829 INFO L345 BasicCegarLoop]: Found error trace [2018-07-24 12:10:21,830 INFO L353 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2018-07-24 12:10:21,830 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 12:10:21,830 INFO L82 PathProgramCache]: Analyzing trace with hash -1522442013, now seen corresponding path program 1 times [2018-07-24 12:10:21,831 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-07-24 12:10:21,831 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 12:10:21,832 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 12:10:21,832 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 12:10:21,832 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-07-24 12:10:21,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 12:10:22,721 WARN L169 SmtUtils]: Spent 265.00 ms on a formula simplification. DAG size of input: 19 DAG size of output: 16 [2018-07-24 12:10:23,104 WARN L169 SmtUtils]: Spent 296.00 ms on a formula simplification. DAG size of input: 23 DAG size of output: 20 [2018-07-24 12:10:23,808 INFO L134 CoverageAnalysis]: Checked inductivity of 340 backedges. 116 proven. 134 refuted. 0 times theorem prover too weak. 90 trivial. 0 not checked. [2018-07-24 12:10:23,808 INFO L297 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-07-24 12:10:23,808 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 11 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 11 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-07-24 12:10:23,817 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 12:10:23,817 INFO L288 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-07-24 12:10:23,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 12:10:23,985 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-07-24 12:10:24,154 INFO L134 CoverageAnalysis]: Checked inductivity of 340 backedges. 331 proven. 2 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2018-07-24 12:10:24,154 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-07-24 12:10:24,560 INFO L134 CoverageAnalysis]: Checked inductivity of 340 backedges. 133 proven. 104 refuted. 0 times theorem prover too weak. 103 trivial. 0 not checked. [2018-07-24 12:10:24,583 INFO L297 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-07-24 12:10:24,583 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 12 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 12 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk --tlimit-per=12000 [2018-07-24 12:10:24,598 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 12:10:24,599 INFO L288 anRefinementStrategy]: Using traceCheck mode CVC4_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-07-24 12:10:24,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 12:10:24,966 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-07-24 12:10:25,212 INFO L134 CoverageAnalysis]: Checked inductivity of 340 backedges. 222 proven. 2 refuted. 0 times theorem prover too weak. 116 trivial. 0 not checked. [2018-07-24 12:10:25,212 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-07-24 12:10:25,325 WARN L169 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 20 DAG size of output: 16 [2018-07-24 12:10:26,187 INFO L134 CoverageAnalysis]: Checked inductivity of 340 backedges. 26 proven. 200 refuted. 0 times theorem prover too weak. 114 trivial. 0 not checked. [2018-07-24 12:10:26,189 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 5 imperfect interpolant sequences. [2018-07-24 12:10:26,190 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 5, 5, 5, 5] total 19 [2018-07-24 12:10:26,190 INFO L251 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-07-24 12:10:26,191 INFO L450 AbstractCegarLoop]: Interpolant automaton has 15 states [2018-07-24 12:10:26,191 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2018-07-24 12:10:26,192 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=64, Invalid=278, Unknown=0, NotChecked=0, Total=342 [2018-07-24 12:10:26,192 INFO L87 Difference]: Start difference. First operand 21406 states and 24961 transitions. Second operand 15 states. [2018-07-24 12:10:49,964 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-24 12:10:49,964 INFO L93 Difference]: Finished difference Result 44197 states and 55203 transitions. [2018-07-24 12:10:49,964 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 56 states. [2018-07-24 12:10:49,964 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 468 [2018-07-24 12:10:49,965 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-24 12:10:50,053 INFO L225 Difference]: With dead ends: 44197 [2018-07-24 12:10:50,053 INFO L226 Difference]: Without dead ends: 21124 [2018-07-24 12:10:50,123 INFO L573 BasicCegarLoop]: 0 DeclaredPredicates, 1983 GetRequests, 1908 SyntacticMatches, 9 SemanticMatches, 66 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1368 ImplicationChecksByTransitivity, 3.4s TimeCoverageRelationStatistics Valid=968, Invalid=3588, Unknown=0, NotChecked=0, Total=4556 [2018-07-24 12:10:50,138 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21124 states. [2018-07-24 12:10:50,502 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21124 to 18810. [2018-07-24 12:10:50,502 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18810 states. [2018-07-24 12:10:50,538 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18810 states to 18810 states and 21139 transitions. [2018-07-24 12:10:50,539 INFO L78 Accepts]: Start accepts. Automaton has 18810 states and 21139 transitions. Word has length 468 [2018-07-24 12:10:50,539 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-24 12:10:50,539 INFO L471 AbstractCegarLoop]: Abstraction has 18810 states and 21139 transitions. [2018-07-24 12:10:50,540 INFO L472 AbstractCegarLoop]: Interpolant automaton has 15 states. [2018-07-24 12:10:50,540 INFO L276 IsEmpty]: Start isEmpty. Operand 18810 states and 21139 transitions. [2018-07-24 12:10:50,552 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 506 [2018-07-24 12:10:50,553 INFO L345 BasicCegarLoop]: Found error trace [2018-07-24 12:10:50,553 INFO L353 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-07-24 12:10:50,554 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 12:10:50,554 INFO L82 PathProgramCache]: Analyzing trace with hash 762206763, now seen corresponding path program 1 times [2018-07-24 12:10:50,554 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-07-24 12:10:50,555 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 12:10:50,555 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 12:10:50,555 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 12:10:50,555 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-07-24 12:10:50,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 12:10:50,921 INFO L134 CoverageAnalysis]: Checked inductivity of 340 backedges. 229 proven. 2 refuted. 0 times theorem prover too weak. 109 trivial. 0 not checked. [2018-07-24 12:10:50,921 INFO L297 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-07-24 12:10:50,921 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 13 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 13 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-07-24 12:10:50,929 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 12:10:50,929 INFO L288 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-07-24 12:10:51,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 12:10:51,099 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-07-24 12:11:14,384 WARN L169 SmtUtils]: Spent 23.10 s on a formula simplification. DAG size of input: 388 DAG size of output: 45 [2018-07-24 12:11:14,614 INFO L134 CoverageAnalysis]: Checked inductivity of 340 backedges. 229 proven. 2 refuted. 0 times theorem prover too weak. 109 trivial. 0 not checked. [2018-07-24 12:11:14,614 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-07-24 12:11:14,875 INFO L134 CoverageAnalysis]: Checked inductivity of 340 backedges. 229 proven. 2 refuted. 0 times theorem prover too weak. 109 trivial. 0 not checked. [2018-07-24 12:11:14,896 INFO L297 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-07-24 12:11:14,896 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 14 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 14 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk --tlimit-per=12000 [2018-07-24 12:11:15,037 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 12:11:15,037 INFO L288 anRefinementStrategy]: Using traceCheck mode CVC4_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-07-24 12:11:15,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 12:11:15,466 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-07-24 12:11:18,265 WARN L169 SmtUtils]: Spent 2.57 s on a formula simplification. DAG size of input: 59 DAG size of output: 45 [2018-07-24 12:11:18,719 INFO L134 CoverageAnalysis]: Checked inductivity of 340 backedges. 222 proven. 111 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2018-07-24 12:11:18,719 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-07-24 12:11:25,262 WARN L169 SmtUtils]: Spent 6.08 s on a formula simplification. DAG size of input: 61 DAG size of output: 30 [2018-07-24 12:11:25,590 WARN L169 SmtUtils]: Spent 167.00 ms on a formula simplification that was a NOOP. DAG size: 48 [2018-07-24 12:11:25,594 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 12:11:25,770 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 18 [2018-07-24 12:11:28,719 WARN L169 SmtUtils]: Spent 767.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 76 [2018-07-24 12:11:28,725 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 12:11:28,732 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 12:11:28,739 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 12:11:28,746 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 12:11:28,752 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 12:11:28,758 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 12:11:28,764 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 12:11:28,770 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 12:11:28,777 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 12:11:28,787 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 12:11:28,792 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 12:11:28,798 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 12:11:28,805 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 12:11:28,811 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 12:11:28,818 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 12:11:28,826 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 12:11:28,831 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 12:11:28,836 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 12:11:28,843 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 12:11:28,848 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 12:11:28,854 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 12:11:28,860 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 12:11:28,866 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 12:11:28,872 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 12:11:28,879 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 12:11:28,884 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 12:11:28,890 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 12:11:28,897 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 12:11:28,902 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 12:11:28,909 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 12:11:28,915 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 12:11:28,921 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 12:11:28,926 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 12:11:28,931 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 12:11:28,937 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 12:11:28,943 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 12:11:28,948 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 12:11:28,954 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 12:11:28,959 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 12:11:28,965 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 12:11:28,970 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 12:11:28,976 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 12:11:28,982 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 12:11:28,987 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 12:11:28,993 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 12:11:29,000 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 12:11:29,005 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 12:11:29,011 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 12:11:29,016 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 12:11:29,021 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 12:11:29,027 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 12:11:29,033 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 12:11:29,038 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 12:11:29,043 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 12:11:29,048 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 12:11:29,053 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 12:11:29,058 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 12:11:29,064 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 12:11:29,069 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 12:11:29,074 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 12:11:29,079 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 12:11:29,084 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 12:11:29,090 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 12:11:29,095 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 12:11:29,100 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 12:11:29,105 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 12:11:29,110 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 12:11:29,116 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 12:11:29,121 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 12:11:29,126 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 12:11:29,131 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 12:11:29,136 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 12:11:29,142 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 12:11:29,147 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 12:11:29,152 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 12:11:29,158 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 12:11:29,163 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 12:11:29,168 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 12:11:29,173 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 12:11:29,179 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 12:11:29,184 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 12:11:29,190 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 12:11:29,195 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 12:11:29,201 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 12:11:29,206 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 12:11:29,211 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 12:11:29,217 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 12:11:29,222 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 12:11:29,228 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 12:11:29,233 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 12:11:29,239 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 12:11:29,244 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 12:11:29,249 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 12:11:29,254 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 12:11:29,260 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 12:11:29,265 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 12:11:29,270 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 12:11:29,275 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 12:11:29,280 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 12:11:29,285 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 12:11:29,290 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 12:11:29,296 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 12:11:29,301 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 12:11:29,306 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 12:11:29,311 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 12:11:29,316 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 12:11:29,321 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 12:11:29,326 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 12:11:29,332 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 12:11:29,337 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 12:11:29,342 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 12:11:29,347 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 12:11:29,352 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 12:11:29,357 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 12:11:29,362 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 12:11:29,367 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 12:11:29,372 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 12:11:29,377 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 12:11:29,382 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 12:11:29,387 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 12:11:29,392 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 12:11:29,398 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 12:11:29,402 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 12:11:29,407 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 12:11:29,412 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 12:11:29,418 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 12:11:29,423 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 12:11:29,428 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 12:11:29,433 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 12:11:29,438 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 12:11:29,443 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 12:11:29,448 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 12:11:29,453 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 12:11:29,458 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 12:11:29,463 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 12:11:29,468 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 12:11:29,473 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 12:11:29,478 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 12:11:29,483 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 12:11:29,489 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 12:11:29,494 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 12:11:29,499 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 12:11:29,504 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 12:11:29,510 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 12:11:29,515 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 12:11:29,520 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 12:11:29,526 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 12:11:29,531 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 12:11:29,536 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 12:11:29,541 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 12:11:29,547 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 12:11:29,552 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 12:11:29,558 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 12:11:29,563 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 12:11:29,568 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 12:11:29,574 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 12:11:29,579 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 12:11:29,585 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 12:11:29,590 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 12:11:29,596 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 12:11:29,601 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 12:11:29,607 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 12:11:29,613 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 12:11:29,618 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 12:11:29,623 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 12:11:29,629 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 12:11:29,634 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 12:11:29,640 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 12:11:29,645 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 12:11:29,651 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 12:11:29,656 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 12:11:29,662 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 12:11:29,667 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 12:11:29,673 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 12:11:29,678 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 12:11:29,683 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 12:11:29,689 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 12:11:29,694 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 12:11:29,700 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 12:11:29,705 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 12:11:29,710 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 12:11:29,715 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 12:11:29,720 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 12:11:29,726 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 12:11:29,731 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 12:11:29,737 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 12:11:29,742 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 12:11:29,748 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 12:11:29,754 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 12:11:29,761 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 12:11:29,767 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 12:11:29,773 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 12:11:29,778 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 12:11:29,783 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 12:11:29,788 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 12:11:29,793 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 12:11:29,798 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 12:11:29,802 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 12:11:29,807 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 12:11:29,812 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 12:11:29,817 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 12:11:29,822 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 12:11:29,827 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 12:11:29,832 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 12:11:29,838 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 12:11:29,843 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 12:11:29,848 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 12:11:29,853 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 12:11:29,857 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 12:11:29,863 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 12:11:29,868 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 12:11:29,873 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 12:11:29,879 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 12:11:29,884 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 12:11:29,890 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 12:11:29,895 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 12:11:29,900 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 12:11:29,905 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 12:11:29,910 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 12:11:29,915 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 12:11:29,920 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 12:11:29,925 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 12:11:29,931 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 12:11:29,936 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 12:11:29,941 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 12:11:29,947 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 12:11:29,953 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 12:11:29,958 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 12:11:29,963 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 12:11:29,968 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 12:11:29,973 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 12:11:29,978 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 12:11:29,984 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 12:11:29,989 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 12:11:29,994 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 12:11:29,999 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 12:11:30,004 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 12:11:30,008 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 12:11:30,013 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 12:11:30,019 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 12:11:30,025 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 12:11:30,032 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 12:11:30,038 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 12:11:30,043 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 12:11:30,048 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 12:11:30,054 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 12:11:30,059 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 12:11:30,063 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 12:11:30,068 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 12:11:30,074 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 12:11:30,078 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 12:11:30,083 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 12:11:30,088 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 12:11:30,093 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 12:11:30,098 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 12:11:30,102 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 12:11:30,107 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 12:11:30,112 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 12:11:30,117 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 12:11:30,122 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 12:11:30,128 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 12:11:30,133 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 12:11:30,139 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 12:11:30,144 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 12:11:30,149 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 12:11:30,155 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 12:11:30,160 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 12:11:40,455 WARN L169 SmtUtils]: Spent 2.10 s on a formula simplification that was a NOOP. DAG size: 72 [2018-07-24 12:11:44,261 INFO L134 CoverageAnalysis]: Checked inductivity of 340 backedges. 24 proven. 311 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2018-07-24 12:11:44,263 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 5 imperfect interpolant sequences. [2018-07-24 12:11:44,264 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5, 9, 10] total 24 [2018-07-24 12:11:44,264 INFO L251 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-07-24 12:11:44,265 INFO L450 AbstractCegarLoop]: Interpolant automaton has 8 states [2018-07-24 12:11:44,265 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2018-07-24 12:11:44,265 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=76, Invalid=471, Unknown=5, NotChecked=0, Total=552 [2018-07-24 12:11:44,267 INFO L87 Difference]: Start difference. First operand 18810 states and 21139 transitions. Second operand 8 states. Received shutdown request... [2018-07-24 12:11:50,399 WARN L177 SmtUtils]: Removed 2 from assertion stack [2018-07-24 12:11:50,399 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-07-24 12:11:50,400 WARN L540 AbstractCegarLoop]: Verification canceled [2018-07-24 12:11:50,404 WARN L202 ceAbstractionStarter]: Timeout [2018-07-24 12:11:50,405 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.07 12:11:50 BoogieIcfgContainer [2018-07-24 12:11:50,405 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-07-24 12:11:50,406 INFO L168 Benchmark]: Toolchain (without parser) took 248572.89 ms. Allocated memory was 1.5 GB in the beginning and 3.6 GB in the end (delta: 2.1 GB). Free memory was 1.4 GB in the beginning and 2.5 GB in the end (delta: -1.1 GB). Peak memory consumption was 996.5 MB. Max. memory is 7.1 GB. [2018-07-24 12:11:50,407 INFO L168 Benchmark]: CDTParser took 0.23 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 12:11:50,408 INFO L168 Benchmark]: CACSL2BoogieTranslator took 1361.30 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 12:11:50,410 INFO L168 Benchmark]: Boogie Procedure Inliner took 222.31 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 12:11:50,411 INFO L168 Benchmark]: Boogie Preprocessor took 685.89 ms. Allocated memory was 1.5 GB in the beginning and 2.4 GB in the end (delta: 894.4 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 12:11:50,417 INFO L168 Benchmark]: RCFGBuilder took 7615.22 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: 328.5 MB). Peak memory consumption was 328.5 MB. Max. memory is 7.1 GB. [2018-07-24 12:11:50,418 INFO L168 Benchmark]: TraceAbstraction took 238682.80 ms. Allocated memory was 2.4 GB in the beginning and 3.6 GB in the end (delta: 1.2 GB). Free memory was 2.0 GB in the beginning and 2.5 GB in the end (delta: -533.4 MB). Peak memory consumption was 660.4 MB. Max. memory is 7.1 GB. [2018-07-24 12:11:50,426 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23 ms. Allocated memory is still 1.5 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 1361.30 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 222.31 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 685.89 ms. Allocated memory was 1.5 GB in the beginning and 2.4 GB in the end (delta: 894.4 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 7615.22 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: 328.5 MB). Peak memory consumption was 328.5 MB. Max. memory is 7.1 GB. * TraceAbstraction took 238682.80 ms. Allocated memory was 2.4 GB in the beginning and 3.6 GB in the end (delta: 1.2 GB). Free memory was 2.0 GB in the beginning and 2.5 GB in the end (delta: -533.4 MB). Peak memory consumption was 660.4 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResultAtElement [Line: 25]: Timeout (TraceAbstraction) Unable to prove that call of __VERIFIER_error() unreachable (line 25). Cancelled while BasicCegarLoop was constructing difference of abstraction (18810states) and interpolant automaton (currently 4 states, 8 states before enhancement), while PredicateUnifier was unifying predicates, while SimplifyDDAWithTimeout was simplifying term of DAG size 48. - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 438 locations, 1 error locations. TIMEOUT Result, 238.6s OverallTime, 14 OverallIterations, 4 TraceHistogramMax, 161.7s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 3487 SDtfs, 29389 SDslu, 4268 SDs, 0 SdLazy, 48594 SolverSat, 8879 SolverUnsat, 6 SolverUnknown, 0 SolverNotchecked, 134.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 9212 GetRequests, 8903 SyntacticMatches, 36 SemanticMatches, 272 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3556 ImplicationChecksByTransitivity, 60.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=21406occurred in iteration=12, 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: 2.7s AutomataMinimizationTime, 13 MinimizatonAttempts, 5164 StatesRemovedByMinimization, 12 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.4s SsaConstructionTime, 2.8s SatisfiabilityAnalysisTime, 68.8s InterpolantComputationTime, 7410 NumberOfCodeBlocks, 7410 NumberOfCodeBlocksAsserted, 27 NumberOfCheckSat, 11798 ConstructedInterpolants, 294 QuantifiedInterpolants, 46141744 SizeOfPredicates, 39 NumberOfNonLiveVariables, 7069 ConjunctsInSsa, 175 ConjunctsInUnsatCore, 40 InterpolantComputations, 9 PerfectInterpolantSequences, 4492/7036 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_label00_false-unreach-call.c_svcomp-Reach-64bit-RubberTaipan_Default-OldIcfg.epf_AutomizerCInline.xml/Csv-Benchmark-0-2018-07-24_12-11-50-447.csv Written .csv to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/csv/Problem15_label00_false-unreach-call.c_svcomp-Reach-64bit-RubberTaipan_Default-OldIcfg.epf_AutomizerCInline.xml/Csv-TraceAbstractionBenchmarks-0-2018-07-24_12-11-50-447.csv Completed graceful shutdown