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/Problem17_label51_true-unreach-call.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-dd2f093 [2018-07-24 14:56:38,913 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-07-24 14:56:38,915 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-07-24 14:56:38,927 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-07-24 14:56:38,927 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-07-24 14:56:38,928 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-07-24 14:56:38,929 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-07-24 14:56:38,931 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-07-24 14:56:38,933 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-07-24 14:56:38,934 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-07-24 14:56:38,935 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-07-24 14:56:38,935 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-07-24 14:56:38,936 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-07-24 14:56:38,937 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-07-24 14:56:38,938 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-07-24 14:56:38,939 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-07-24 14:56:38,941 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-07-24 14:56:38,944 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-07-24 14:56:38,946 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-07-24 14:56:38,948 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-07-24 14:56:38,949 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-07-24 14:56:38,950 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-07-24 14:56:38,952 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-07-24 14:56:38,953 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-07-24 14:56:38,953 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-07-24 14:56:38,954 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-07-24 14:56:38,955 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-07-24 14:56:38,956 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-07-24 14:56:38,957 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-07-24 14:56:38,958 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-07-24 14:56:38,958 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-07-24 14:56:38,959 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-07-24 14:56:38,959 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-07-24 14:56:38,959 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-07-24 14:56:38,966 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-07-24 14:56:38,967 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-07-24 14:56:38,967 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 14:56:38,989 INFO L110 SettingsManager]: Loading preferences was successful [2018-07-24 14:56:38,989 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-07-24 14:56:38,990 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-07-24 14:56:38,990 INFO L133 SettingsManager]: * User list type=DISABLED [2018-07-24 14:56:38,990 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-07-24 14:56:38,991 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-07-24 14:56:38,991 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-07-24 14:56:38,991 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-07-24 14:56:38,991 INFO L133 SettingsManager]: * Log string format=TERM [2018-07-24 14:56:38,991 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-07-24 14:56:38,992 INFO L133 SettingsManager]: * Interval Domain=false [2018-07-24 14:56:38,992 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-07-24 14:56:38,993 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-07-24 14:56:38,993 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-07-24 14:56:38,993 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-07-24 14:56:38,993 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-07-24 14:56:38,993 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-07-24 14:56:38,993 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-07-24 14:56:38,994 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-07-24 14:56:38,994 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-07-24 14:56:38,994 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-07-24 14:56:38,994 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-07-24 14:56:38,994 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-07-24 14:56:38,995 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-07-24 14:56:38,995 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-07-24 14:56:38,995 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-07-24 14:56:38,995 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-07-24 14:56:38,995 INFO L133 SettingsManager]: * Trace refinement strategy=RUBBER_TAIPAN [2018-07-24 14:56:38,996 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-07-24 14:56:38,996 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-07-24 14:56:38,996 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-07-24 14:56:38,996 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-07-24 14:56:38,996 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-07-24 14:56:39,042 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-07-24 14:56:39,055 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-07-24 14:56:39,062 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-07-24 14:56:39,064 INFO L271 PluginConnector]: Initializing CDTParser... [2018-07-24 14:56:39,064 INFO L276 PluginConnector]: CDTParser initialized [2018-07-24 14:56:39,065 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem17_label51_true-unreach-call.c [2018-07-24 14:56:39,395 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/810b6031b/8096089743ca46dc840cbc80e7cf54ad/FLAG13fa86dfc [2018-07-24 14:56:39,856 INFO L276 CDTParser]: Found 1 translation units. [2018-07-24 14:56:39,858 INFO L158 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem17_label51_true-unreach-call.c [2018-07-24 14:56:39,892 INFO L324 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/810b6031b/8096089743ca46dc840cbc80e7cf54ad/FLAG13fa86dfc [2018-07-24 14:56:39,914 INFO L332 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/810b6031b/8096089743ca46dc840cbc80e7cf54ad [2018-07-24 14:56:39,929 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-07-24 14:56:39,930 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-07-24 14:56:39,933 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-07-24 14:56:39,933 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-07-24 14:56:39,942 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-07-24 14:56:39,943 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.07 02:56:39" (1/1) ... [2018-07-24 14:56:39,946 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@389085e6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.07 02:56:39, skipping insertion in model container [2018-07-24 14:56:39,947 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.07 02:56:39" (1/1) ... [2018-07-24 14:56:40,257 INFO L179 PRDispatcher]: Starting pre-run dispatcher in SV-COMP mode [2018-07-24 14:56:40,949 INFO L175 PostProcessor]: Settings: Checked method=main [2018-07-24 14:56:40,966 INFO L422 MainDispatcher]: Starting main dispatcher in SV-COMP mode [2018-07-24 14:56:41,528 INFO L175 PostProcessor]: Settings: Checked method=main [2018-07-24 14:56:41,739 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.07 02:56:41 WrapperNode [2018-07-24 14:56:41,740 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-07-24 14:56:41,741 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-07-24 14:56:41,741 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-07-24 14:56:41,741 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-07-24 14:56:41,752 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.07 02:56:41" (1/1) ... [2018-07-24 14:56:41,840 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.07 02:56:41" (1/1) ... [2018-07-24 14:56:42,039 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-07-24 14:56:42,040 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-07-24 14:56:42,040 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-07-24 14:56:42,041 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-07-24 14:56:42,623 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.07 02:56:41" (1/1) ... [2018-07-24 14:56:42,623 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.07 02:56:41" (1/1) ... [2018-07-24 14:56:42,656 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.07 02:56:41" (1/1) ... [2018-07-24 14:56:42,656 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.07 02:56:41" (1/1) ... [2018-07-24 14:56:42,812 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.07 02:56:41" (1/1) ... [2018-07-24 14:56:42,833 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.07 02:56:41" (1/1) ... [2018-07-24 14:56:42,903 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.07 02:56:41" (1/1) ... [2018-07-24 14:56:42,973 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-07-24 14:56:42,974 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-07-24 14:56:42,974 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-07-24 14:56:42,974 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-07-24 14:56:42,976 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.07 02:56:41" (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 14:56:43,046 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-07-24 14:56:43,047 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-07-24 14:56:43,047 INFO L130 BoogieDeclarations]: Found specification of procedure __U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___true_unreach_call_c__calculate_output [2018-07-24 14:56:43,047 INFO L138 BoogieDeclarations]: Found implementation of procedure __U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___true_unreach_call_c__calculate_output [2018-07-24 14:56:43,047 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-07-24 14:56:43,047 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-07-24 14:56:43,048 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-07-24 14:56:43,048 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-07-24 14:56:43,048 INFO L130 BoogieDeclarations]: Found specification of procedure __U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___true_unreach_call_c__calculate_output2 [2018-07-24 14:56:43,048 INFO L138 BoogieDeclarations]: Found implementation of procedure __U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___true_unreach_call_c__calculate_output2 [2018-07-24 14:56:53,166 INFO L261 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-07-24 14:56:53,167 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.07 02:56:53 BoogieIcfgContainer [2018-07-24 14:56:53,168 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-07-24 14:56:53,169 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-07-24 14:56:53,169 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-07-24 14:56:53,172 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-07-24 14:56:53,173 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.07 02:56:39" (1/3) ... [2018-07-24 14:56:53,173 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@17285fc5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.07 02:56:53, skipping insertion in model container [2018-07-24 14:56:53,174 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.07 02:56:41" (2/3) ... [2018-07-24 14:56:53,174 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@17285fc5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.07 02:56:53, skipping insertion in model container [2018-07-24 14:56:53,174 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.07 02:56:53" (3/3) ... [2018-07-24 14:56:53,176 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem17_label51_true-unreach-call.c [2018-07-24 14:56:53,186 INFO L132 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-07-24 14:56:53,195 INFO L144 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-07-24 14:56:53,252 INFO L128 ementStrategyFactory]: Using default assertion order modulation [2018-07-24 14:56:53,253 INFO L373 AbstractCegarLoop]: Interprodecural is true [2018-07-24 14:56:53,253 INFO L374 AbstractCegarLoop]: Hoare is true [2018-07-24 14:56:53,253 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-07-24 14:56:53,254 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-07-24 14:56:53,254 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-07-24 14:56:53,254 INFO L378 AbstractCegarLoop]: Difference is false [2018-07-24 14:56:53,254 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-07-24 14:56:53,254 INFO L384 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-07-24 14:56:53,293 INFO L276 IsEmpty]: Start isEmpty. Operand 604 states. [2018-07-24 14:56:53,307 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2018-07-24 14:56:53,308 INFO L345 BasicCegarLoop]: Found error trace [2018-07-24 14:56:53,309 INFO L353 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-07-24 14:56:53,309 INFO L414 AbstractCegarLoop]: === Iteration 1 === [__U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___true_unreach_call_c__calculate_outputErr0AssertViolationERROR_FUNCTION]=== [2018-07-24 14:56:53,315 INFO L82 PathProgramCache]: Analyzing trace with hash 1677268188, now seen corresponding path program 1 times [2018-07-24 14:56:53,318 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-07-24 14:56:53,369 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 14:56:53,369 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 14:56:53,369 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 14:56:53,370 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-07-24 14:56:53,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 14:56:53,812 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 14:56:53,814 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-24 14:56:53,815 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-07-24 14:56:53,815 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-07-24 14:56:53,821 INFO L450 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-07-24 14:56:53,834 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-07-24 14:56:53,835 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-07-24 14:56:53,837 INFO L87 Difference]: Start difference. First operand 604 states. Second operand 4 states. [2018-07-24 14:57:03,947 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-24 14:57:03,948 INFO L93 Difference]: Finished difference Result 2137 states and 3966 transitions. [2018-07-24 14:57:03,949 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-07-24 14:57:03,951 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 44 [2018-07-24 14:57:03,951 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-24 14:57:03,988 INFO L225 Difference]: With dead ends: 2137 [2018-07-24 14:57:03,989 INFO L226 Difference]: Without dead ends: 1527 [2018-07-24 14:57:03,997 INFO L573 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-07-24 14:57:04,018 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1527 states. [2018-07-24 14:57:04,155 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1527 to 1513. [2018-07-24 14:57:04,158 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1513 states. [2018-07-24 14:57:04,168 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1513 states to 1513 states and 2344 transitions. [2018-07-24 14:57:04,170 INFO L78 Accepts]: Start accepts. Automaton has 1513 states and 2344 transitions. Word has length 44 [2018-07-24 14:57:04,170 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-24 14:57:04,171 INFO L471 AbstractCegarLoop]: Abstraction has 1513 states and 2344 transitions. [2018-07-24 14:57:04,171 INFO L472 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-07-24 14:57:04,172 INFO L276 IsEmpty]: Start isEmpty. Operand 1513 states and 2344 transitions. [2018-07-24 14:57:04,181 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2018-07-24 14:57:04,181 INFO L345 BasicCegarLoop]: Found error trace [2018-07-24 14:57:04,183 INFO L353 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2018-07-24 14:57:04,184 INFO L414 AbstractCegarLoop]: === Iteration 2 === [__U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___true_unreach_call_c__calculate_outputErr0AssertViolationERROR_FUNCTION]=== [2018-07-24 14:57:04,184 INFO L82 PathProgramCache]: Analyzing trace with hash -1125350550, now seen corresponding path program 1 times [2018-07-24 14:57:04,185 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-07-24 14:57:04,187 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 14:57:04,187 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 14:57:04,187 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 14:57:04,188 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-07-24 14:57:04,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 14:57:04,492 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 37 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-24 14:57:04,492 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-24 14:57:04,492 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-07-24 14:57:04,493 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-07-24 14:57:04,495 INFO L450 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-07-24 14:57:04,495 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-07-24 14:57:04,495 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-07-24 14:57:04,495 INFO L87 Difference]: Start difference. First operand 1513 states and 2344 transitions. Second operand 5 states. [2018-07-24 14:57:14,261 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-24 14:57:14,262 INFO L93 Difference]: Finished difference Result 4413 states and 7007 transitions. [2018-07-24 14:57:14,264 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-07-24 14:57:14,265 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 116 [2018-07-24 14:57:14,265 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-24 14:57:14,290 INFO L225 Difference]: With dead ends: 4413 [2018-07-24 14:57:14,291 INFO L226 Difference]: Without dead ends: 2906 [2018-07-24 14:57:14,297 INFO L573 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2018-07-24 14:57:14,299 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2906 states. [2018-07-24 14:57:14,398 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2906 to 2873. [2018-07-24 14:57:14,398 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2873 states. [2018-07-24 14:57:14,412 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2873 states to 2873 states and 4204 transitions. [2018-07-24 14:57:14,413 INFO L78 Accepts]: Start accepts. Automaton has 2873 states and 4204 transitions. Word has length 116 [2018-07-24 14:57:14,414 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-24 14:57:14,415 INFO L471 AbstractCegarLoop]: Abstraction has 2873 states and 4204 transitions. [2018-07-24 14:57:14,415 INFO L472 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-07-24 14:57:14,415 INFO L276 IsEmpty]: Start isEmpty. Operand 2873 states and 4204 transitions. [2018-07-24 14:57:14,426 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2018-07-24 14:57:14,426 INFO L345 BasicCegarLoop]: Found error trace [2018-07-24 14:57:14,426 INFO L353 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2018-07-24 14:57:14,426 INFO L414 AbstractCegarLoop]: === Iteration 3 === [__U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___true_unreach_call_c__calculate_outputErr0AssertViolationERROR_FUNCTION]=== [2018-07-24 14:57:14,427 INFO L82 PathProgramCache]: Analyzing trace with hash 604221005, now seen corresponding path program 1 times [2018-07-24 14:57:14,427 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-07-24 14:57:14,428 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 14:57:14,428 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 14:57:14,428 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 14:57:14,429 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-07-24 14:57:14,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 14:57:14,985 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 0 proven. 37 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-24 14:57:14,985 INFO L297 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-07-24 14:57:14,985 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 14:57:15,002 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 14:57:15,003 INFO L288 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-07-24 14:57:15,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 14:57:15,101 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-07-24 14:57:19,770 WARN L169 SmtUtils]: Spent 4.12 s on a formula simplification that was a NOOP. DAG size: 42 [2018-07-24 14:57:19,883 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 4 proven. 33 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-24 14:57:19,884 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-07-24 14:57:20,625 WARN L169 SmtUtils]: Spent 241.00 ms on a formula simplification. DAG size of input: 36 DAG size of output: 22 [2018-07-24 14:57:21,018 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 37 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-24 14:57:21,045 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 2 imperfect interpolant sequences. [2018-07-24 14:57:21,045 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [7, 6] total 13 [2018-07-24 14:57:21,045 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-07-24 14:57:21,046 INFO L450 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-07-24 14:57:21,047 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-07-24 14:57:21,048 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=110, Unknown=0, NotChecked=0, Total=156 [2018-07-24 14:57:21,049 INFO L87 Difference]: Start difference. First operand 2873 states and 4204 transitions. Second operand 6 states. [2018-07-24 14:57:44,190 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-24 14:57:44,190 INFO L93 Difference]: Finished difference Result 11095 states and 16890 transitions. [2018-07-24 14:57:44,191 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-07-24 14:57:44,191 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 119 [2018-07-24 14:57:44,192 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-24 14:57:44,249 INFO L225 Difference]: With dead ends: 11095 [2018-07-24 14:57:44,249 INFO L226 Difference]: Without dead ends: 8228 [2018-07-24 14:57:44,273 INFO L573 BasicCegarLoop]: 0 DeclaredPredicates, 246 GetRequests, 233 SyntacticMatches, 2 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 5.6s TimeCoverageRelationStatistics Valid=46, Invalid=110, Unknown=0, NotChecked=0, Total=156 [2018-07-24 14:57:44,281 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8228 states. [2018-07-24 14:57:44,485 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8228 to 8220. [2018-07-24 14:57:44,485 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8220 states. [2018-07-24 14:57:44,515 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8220 states to 8220 states and 12340 transitions. [2018-07-24 14:57:44,515 INFO L78 Accepts]: Start accepts. Automaton has 8220 states and 12340 transitions. Word has length 119 [2018-07-24 14:57:44,516 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-24 14:57:44,516 INFO L471 AbstractCegarLoop]: Abstraction has 8220 states and 12340 transitions. [2018-07-24 14:57:44,516 INFO L472 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-07-24 14:57:44,517 INFO L276 IsEmpty]: Start isEmpty. Operand 8220 states and 12340 transitions. [2018-07-24 14:57:44,519 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2018-07-24 14:57:44,520 INFO L345 BasicCegarLoop]: Found error trace [2018-07-24 14:57:44,520 INFO L353 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-07-24 14:57:44,520 INFO L414 AbstractCegarLoop]: === Iteration 4 === [__U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___true_unreach_call_c__calculate_outputErr0AssertViolationERROR_FUNCTION]=== [2018-07-24 14:57:44,520 INFO L82 PathProgramCache]: Analyzing trace with hash 461720266, now seen corresponding path program 1 times [2018-07-24 14:57:44,521 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-07-24 14:57:44,521 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 14:57:44,522 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 14:57:44,522 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 14:57:44,522 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-07-24 14:57:44,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 14:57:44,793 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 31 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-24 14:57:44,794 INFO L297 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-07-24 14:57:44,794 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 14:57:44,804 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 14:57:44,804 INFO L288 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-07-24 14:57:44,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 14:57:44,867 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-07-24 14:57:44,917 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 37 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-24 14:57:44,918 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-07-24 14:57:44,995 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 37 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-24 14:57:45,021 INFO L309 seRefinementStrategy]: Constructing automaton from 2 perfect and 1 imperfect interpolant sequences. [2018-07-24 14:57:45,021 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [7] total 8 [2018-07-24 14:57:45,021 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-07-24 14:57:45,022 INFO L450 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-07-24 14:57:45,022 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-07-24 14:57:45,022 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2018-07-24 14:57:45,022 INFO L87 Difference]: Start difference. First operand 8220 states and 12340 transitions. Second operand 3 states. [2018-07-24 14:57:52,322 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-24 14:57:52,322 INFO L93 Difference]: Finished difference Result 18192 states and 27738 transitions. [2018-07-24 14:57:52,323 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-07-24 14:57:52,323 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 132 [2018-07-24 14:57:52,324 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-24 14:57:52,374 INFO L225 Difference]: With dead ends: 18192 [2018-07-24 14:57:52,374 INFO L226 Difference]: Without dead ends: 9978 [2018-07-24 14:57:52,415 INFO L573 BasicCegarLoop]: 0 DeclaredPredicates, 273 GetRequests, 263 SyntacticMatches, 4 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2018-07-24 14:57:52,422 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9978 states. [2018-07-24 14:57:52,634 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9978 to 9977. [2018-07-24 14:57:52,635 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9977 states. [2018-07-24 14:57:52,656 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9977 states to 9977 states and 14584 transitions. [2018-07-24 14:57:52,657 INFO L78 Accepts]: Start accepts. Automaton has 9977 states and 14584 transitions. Word has length 132 [2018-07-24 14:57:52,657 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-24 14:57:52,657 INFO L471 AbstractCegarLoop]: Abstraction has 9977 states and 14584 transitions. [2018-07-24 14:57:52,658 INFO L472 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-07-24 14:57:52,658 INFO L276 IsEmpty]: Start isEmpty. Operand 9977 states and 14584 transitions. [2018-07-24 14:57:52,663 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 209 [2018-07-24 14:57:52,663 INFO L345 BasicCegarLoop]: Found error trace [2018-07-24 14:57:52,663 INFO L353 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 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 14:57:52,663 INFO L414 AbstractCegarLoop]: === Iteration 5 === [__U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___true_unreach_call_c__calculate_outputErr0AssertViolationERROR_FUNCTION]=== [2018-07-24 14:57:52,664 INFO L82 PathProgramCache]: Analyzing trace with hash 1496098576, now seen corresponding path program 1 times [2018-07-24 14:57:52,664 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-07-24 14:57:52,665 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 14:57:52,665 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 14:57:52,665 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 14:57:52,665 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-07-24 14:57:52,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 14:57:53,221 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 79 proven. 69 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2018-07-24 14:57:53,221 INFO L297 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-07-24 14:57:53,221 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 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 14:57:53,229 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 14:57:53,229 INFO L288 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-07-24 14:57:53,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 14:57:53,331 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-07-24 14:57:53,720 WARN L169 SmtUtils]: Spent 130.00 ms on a formula simplification. DAG size of input: 42 DAG size of output: 17 [2018-07-24 14:57:54,115 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 79 proven. 2 refuted. 0 times theorem prover too weak. 69 trivial. 0 not checked. [2018-07-24 14:57:54,115 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-07-24 14:57:56,482 WARN L169 SmtUtils]: Spent 2.01 s on a formula simplification. DAG size of input: 39 DAG size of output: 15 [2018-07-24 14:57:57,186 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 79 proven. 71 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-24 14:57:57,206 INFO L297 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-07-24 14:57:57,206 INFO L191 anRefinementStrategy]: Switched to InterpolantGenerator mode CVC4_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4nyu Starting monitored process 5 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk --tlimit-per=12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk --tlimit-per=12000 [2018-07-24 14:57:57,223 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 14:57:57,223 INFO L288 anRefinementStrategy]: Using traceCheck mode CVC4_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-07-24 14:57:57,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 14:57:57,413 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-07-24 14:57:57,691 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 79 proven. 2 refuted. 0 times theorem prover too weak. 69 trivial. 0 not checked. [2018-07-24 14:57:57,691 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-07-24 14:57:58,264 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 79 proven. 71 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-24 14:57:58,267 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 5 imperfect interpolant sequences. [2018-07-24 14:57:58,268 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 7, 8, 7, 8] total 17 [2018-07-24 14:57:58,268 INFO L251 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-07-24 14:57:58,269 INFO L450 AbstractCegarLoop]: Interpolant automaton has 11 states [2018-07-24 14:57:58,270 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2018-07-24 14:57:58,270 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=78, Invalid=194, Unknown=0, NotChecked=0, Total=272 [2018-07-24 14:57:58,270 INFO L87 Difference]: Start difference. First operand 9977 states and 14584 transitions. Second operand 11 states. [2018-07-24 14:58:22,283 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-24 14:58:22,283 INFO L93 Difference]: Finished difference Result 37154 states and 59183 transitions. [2018-07-24 14:58:22,284 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2018-07-24 14:58:22,284 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 208 [2018-07-24 14:58:22,285 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-24 14:58:22,443 INFO L225 Difference]: With dead ends: 37154 [2018-07-24 14:58:22,443 INFO L226 Difference]: Without dead ends: 27183 [2018-07-24 14:58:22,486 INFO L573 BasicCegarLoop]: 0 DeclaredPredicates, 847 GetRequests, 820 SyntacticMatches, 5 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 173 ImplicationChecksByTransitivity, 4.0s TimeCoverageRelationStatistics Valid=168, Invalid=384, Unknown=0, NotChecked=0, Total=552 [2018-07-24 14:58:22,509 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27183 states. [2018-07-24 14:58:23,133 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27183 to 25191. [2018-07-24 14:58:23,134 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 25191 states. [2018-07-24 14:58:23,208 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25191 states to 25191 states and 35466 transitions. [2018-07-24 14:58:23,209 INFO L78 Accepts]: Start accepts. Automaton has 25191 states and 35466 transitions. Word has length 208 [2018-07-24 14:58:23,209 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-24 14:58:23,209 INFO L471 AbstractCegarLoop]: Abstraction has 25191 states and 35466 transitions. [2018-07-24 14:58:23,209 INFO L472 AbstractCegarLoop]: Interpolant automaton has 11 states. [2018-07-24 14:58:23,210 INFO L276 IsEmpty]: Start isEmpty. Operand 25191 states and 35466 transitions. [2018-07-24 14:58:23,230 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 266 [2018-07-24 14:58:23,230 INFO L345 BasicCegarLoop]: Found error trace [2018-07-24 14:58:23,231 INFO L353 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-07-24 14:58:23,231 INFO L414 AbstractCegarLoop]: === Iteration 6 === [__U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___true_unreach_call_c__calculate_outputErr0AssertViolationERROR_FUNCTION]=== [2018-07-24 14:58:23,231 INFO L82 PathProgramCache]: Analyzing trace with hash 1514951557, now seen corresponding path program 1 times [2018-07-24 14:58:23,231 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-07-24 14:58:23,232 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 14:58:23,232 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 14:58:23,233 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 14:58:23,233 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-07-24 14:58:23,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 14:58:23,553 WARN L169 SmtUtils]: Spent 141.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 4 [2018-07-24 14:58:23,703 INFO L134 CoverageAnalysis]: Checked inductivity of 326 backedges. 117 proven. 137 refuted. 0 times theorem prover too weak. 72 trivial. 0 not checked. [2018-07-24 14:58:23,704 INFO L297 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-07-24 14:58:23,704 INFO L191 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-07-24 14:58:23,719 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 14:58:23,719 INFO L288 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-07-24 14:58:23,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 14:58:23,827 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-07-24 14:58:23,925 INFO L134 CoverageAnalysis]: Checked inductivity of 326 backedges. 286 proven. 2 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2018-07-24 14:58:23,925 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-07-24 14:58:24,144 INFO L134 CoverageAnalysis]: Checked inductivity of 326 backedges. 184 proven. 69 refuted. 0 times theorem prover too weak. 73 trivial. 0 not checked. [2018-07-24 14:58:24,185 INFO L297 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-07-24 14:58:24,185 INFO L191 anRefinementStrategy]: Switched to InterpolantGenerator mode CVC4_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4nyu Starting monitored process 7 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk --tlimit-per=12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk --tlimit-per=12000 [2018-07-24 14:58:24,216 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 14:58:24,216 INFO L288 anRefinementStrategy]: Using traceCheck mode CVC4_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-07-24 14:58:24,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 14:58:24,497 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-07-24 14:58:24,858 INFO L134 CoverageAnalysis]: Checked inductivity of 326 backedges. 219 proven. 2 refuted. 0 times theorem prover too weak. 105 trivial. 0 not checked. [2018-07-24 14:58:24,858 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-07-24 14:58:25,062 WARN L169 SmtUtils]: Spent 101.00 ms on a formula simplification that was a NOOP. DAG size: 8 [2018-07-24 14:58:25,569 INFO L134 CoverageAnalysis]: Checked inductivity of 326 backedges. 119 proven. 135 refuted. 0 times theorem prover too weak. 72 trivial. 0 not checked. [2018-07-24 14:58:25,571 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 5 imperfect interpolant sequences. [2018-07-24 14:58:25,571 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5, 5, 5] total 12 [2018-07-24 14:58:25,571 INFO L251 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-07-24 14:58:25,573 INFO L450 AbstractCegarLoop]: Interpolant automaton has 8 states [2018-07-24 14:58:25,573 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2018-07-24 14:58:25,573 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=90, Unknown=0, NotChecked=0, Total=132 [2018-07-24 14:58:25,574 INFO L87 Difference]: Start difference. First operand 25191 states and 35466 transitions. Second operand 8 states. [2018-07-24 14:58:34,557 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-24 14:58:34,558 INFO L93 Difference]: Finished difference Result 48724 states and 69179 transitions. [2018-07-24 14:58:34,558 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2018-07-24 14:58:34,558 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 265 [2018-07-24 14:58:34,558 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-24 14:58:34,617 INFO L225 Difference]: With dead ends: 48724 [2018-07-24 14:58:34,618 INFO L226 Difference]: Without dead ends: 20230 [2018-07-24 14:58:34,670 INFO L573 BasicCegarLoop]: 0 DeclaredPredicates, 1080 GetRequests, 1054 SyntacticMatches, 9 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 78 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=108, Invalid=234, Unknown=0, NotChecked=0, Total=342 [2018-07-24 14:58:34,688 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20230 states. [2018-07-24 14:58:34,958 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20230 to 17644. [2018-07-24 14:58:34,958 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17644 states. [2018-07-24 14:58:34,989 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17644 states to 17644 states and 20435 transitions. [2018-07-24 14:58:34,990 INFO L78 Accepts]: Start accepts. Automaton has 17644 states and 20435 transitions. Word has length 265 [2018-07-24 14:58:34,990 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-24 14:58:34,990 INFO L471 AbstractCegarLoop]: Abstraction has 17644 states and 20435 transitions. [2018-07-24 14:58:34,991 INFO L472 AbstractCegarLoop]: Interpolant automaton has 8 states. [2018-07-24 14:58:34,991 INFO L276 IsEmpty]: Start isEmpty. Operand 17644 states and 20435 transitions. [2018-07-24 14:58:34,996 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 312 [2018-07-24 14:58:34,997 INFO L345 BasicCegarLoop]: Found error trace [2018-07-24 14:58:34,997 INFO L353 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2018-07-24 14:58:34,997 INFO L414 AbstractCegarLoop]: === Iteration 7 === [__U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___true_unreach_call_c__calculate_outputErr0AssertViolationERROR_FUNCTION]=== [2018-07-24 14:58:34,998 INFO L82 PathProgramCache]: Analyzing trace with hash 671300863, now seen corresponding path program 1 times [2018-07-24 14:58:34,998 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-07-24 14:58:34,998 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 14:58:34,999 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 14:58:34,999 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 14:58:34,999 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-07-24 14:58:35,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 14:58:35,841 INFO L134 CoverageAnalysis]: Checked inductivity of 351 backedges. 117 proven. 201 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2018-07-24 14:58:35,841 INFO L297 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-07-24 14:58:35,841 INFO L191 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 8 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-07-24 14:58:35,849 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 14:58:35,850 INFO L288 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-07-24 14:58:35,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 14:58:35,974 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-07-24 14:58:36,643 WARN L169 SmtUtils]: Spent 165.00 ms on a formula simplification that was a NOOP. DAG size: 22 [2018-07-24 14:58:37,113 WARN L169 SmtUtils]: Spent 248.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 21 [2018-07-24 14:58:37,709 INFO L134 CoverageAnalysis]: Checked inductivity of 351 backedges. 230 proven. 55 refuted. 0 times theorem prover too weak. 66 trivial. 0 not checked. [2018-07-24 14:58:37,710 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-07-24 14:58:37,887 WARN L169 SmtUtils]: Spent 123.00 ms on a formula simplification. DAG size of input: 8 DAG size of output: 3 [2018-07-24 14:58:38,096 WARN L169 SmtUtils]: Spent 101.00 ms on a formula simplification that was a NOOP. DAG size: 8 [2018-07-24 14:58:41,719 WARN L169 SmtUtils]: Spent 384.00 ms on a formula simplification. DAG size of input: 49 DAG size of output: 38 [2018-07-24 14:58:42,497 INFO L134 CoverageAnalysis]: Checked inductivity of 351 backedges. 121 proven. 225 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2018-07-24 14:58:42,537 INFO L297 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-07-24 14:58:42,537 INFO L191 anRefinementStrategy]: Switched to InterpolantGenerator mode CVC4_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4nyu Starting monitored process 9 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk --tlimit-per=12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 9 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk --tlimit-per=12000 [2018-07-24 14:58:42,568 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 14:58:42,568 INFO L288 anRefinementStrategy]: Using traceCheck mode CVC4_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-07-24 14:58:42,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 14:58:42,891 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-07-24 14:58:43,247 INFO L134 CoverageAnalysis]: Checked inductivity of 351 backedges. 226 proven. 87 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2018-07-24 14:58:43,247 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-07-24 14:58:43,583 INFO L134 CoverageAnalysis]: Checked inductivity of 351 backedges. 121 proven. 225 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2018-07-24 14:58:43,585 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 5 imperfect interpolant sequences. [2018-07-24 14:58:43,586 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8, 9, 8, 8] total 24 [2018-07-24 14:58:43,586 INFO L251 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-07-24 14:58:43,587 INFO L450 AbstractCegarLoop]: Interpolant automaton has 13 states [2018-07-24 14:58:43,587 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2018-07-24 14:58:43,588 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=154, Invalid=398, Unknown=0, NotChecked=0, Total=552 [2018-07-24 14:58:43,588 INFO L87 Difference]: Start difference. First operand 17644 states and 20435 transitions. Second operand 13 states. [2018-07-24 14:59:21,622 WARN L169 SmtUtils]: Spent 449.00 ms on a formula simplification. DAG size of input: 35 DAG size of output: 24 [2018-07-24 14:59:23,663 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-24 14:59:23,664 INFO L93 Difference]: Finished difference Result 96349 states and 127211 transitions. [2018-07-24 14:59:23,664 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 66 states. [2018-07-24 14:59:23,664 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 311 [2018-07-24 14:59:23,665 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-24 14:59:24,051 INFO L225 Difference]: With dead ends: 96349 [2018-07-24 14:59:24,051 INFO L226 Difference]: Without dead ends: 72610 [2018-07-24 14:59:24,165 INFO L573 BasicCegarLoop]: 0 DeclaredPredicates, 1349 GetRequests, 1267 SyntacticMatches, 4 SemanticMatches, 78 ConstructedPredicates, 0 IntricatePredicates, 3 DeprecatedPredicates, 1754 ImplicationChecksByTransitivity, 7.9s TimeCoverageRelationStatistics Valid=1387, Invalid=4933, Unknown=0, NotChecked=0, Total=6320 [2018-07-24 14:59:24,211 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 72610 states. [2018-07-24 14:59:25,617 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 72610 to 60856. [2018-07-24 14:59:25,617 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 60856 states. [2018-07-24 14:59:25,879 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 60856 states to 60856 states and 79325 transitions. [2018-07-24 14:59:25,881 INFO L78 Accepts]: Start accepts. Automaton has 60856 states and 79325 transitions. Word has length 311 [2018-07-24 14:59:25,882 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-24 14:59:25,882 INFO L471 AbstractCegarLoop]: Abstraction has 60856 states and 79325 transitions. [2018-07-24 14:59:25,882 INFO L472 AbstractCegarLoop]: Interpolant automaton has 13 states. [2018-07-24 14:59:25,883 INFO L276 IsEmpty]: Start isEmpty. Operand 60856 states and 79325 transitions. [2018-07-24 14:59:25,895 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 396 [2018-07-24 14:59:25,895 INFO L345 BasicCegarLoop]: Found error trace [2018-07-24 14:59:25,895 INFO L353 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-07-24 14:59:25,896 INFO L414 AbstractCegarLoop]: === Iteration 8 === [__U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___true_unreach_call_c__calculate_outputErr0AssertViolationERROR_FUNCTION]=== [2018-07-24 14:59:25,896 INFO L82 PathProgramCache]: Analyzing trace with hash -1624495298, now seen corresponding path program 1 times [2018-07-24 14:59:25,896 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-07-24 14:59:25,897 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 14:59:25,897 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 14:59:25,897 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 14:59:25,897 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-07-24 14:59:25,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 14:59:26,291 INFO L134 CoverageAnalysis]: Checked inductivity of 622 backedges. 159 proven. 296 refuted. 0 times theorem prover too weak. 167 trivial. 0 not checked. [2018-07-24 14:59:26,291 INFO L297 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-07-24 14:59:26,291 INFO L191 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 10 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 10 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-07-24 14:59:26,299 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 14:59:26,299 INFO L288 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-07-24 14:59:26,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 14:59:26,451 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-07-24 15:00:27,019 WARN L169 SmtUtils]: Spent 1.01 m on a formula simplification. DAG size of input: 291 DAG size of output: 49 [2018-07-24 15:00:29,714 INFO L134 CoverageAnalysis]: Checked inductivity of 622 backedges. 342 proven. 40 refuted. 0 times theorem prover too weak. 240 trivial. 0 not checked. [2018-07-24 15:00:29,714 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-07-24 15:00:30,109 INFO L134 CoverageAnalysis]: Checked inductivity of 622 backedges. 157 proven. 0 refuted. 0 times theorem prover too weak. 465 trivial. 0 not checked. [2018-07-24 15:00:30,130 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 2 imperfect interpolant sequences. [2018-07-24 15:00:30,131 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [7, 6] total 12 [2018-07-24 15:00:30,131 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-07-24 15:00:30,132 INFO L450 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-07-24 15:00:30,132 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-07-24 15:00:30,132 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=104, Unknown=1, NotChecked=0, Total=132 [2018-07-24 15:00:30,133 INFO L87 Difference]: Start difference. First operand 60856 states and 79325 transitions. Second operand 3 states. [2018-07-24 15:00:34,856 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-24 15:00:34,856 INFO L93 Difference]: Finished difference Result 151229 states and 200054 transitions. [2018-07-24 15:00:34,857 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-07-24 15:00:34,857 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 395 [2018-07-24 15:00:34,858 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-24 15:00:35,269 INFO L225 Difference]: With dead ends: 151229 [2018-07-24 15:00:35,269 INFO L226 Difference]: Without dead ends: 90379 [2018-07-24 15:00:35,478 INFO L573 BasicCegarLoop]: 0 DeclaredPredicates, 798 GetRequests, 788 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 62.8s TimeCoverageRelationStatistics Valid=27, Invalid=104, Unknown=1, NotChecked=0, Total=132 [2018-07-24 15:00:35,545 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 90379 states. [2018-07-24 15:00:37,486 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 90379 to 87698. [2018-07-24 15:00:37,486 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 87698 states. [2018-07-24 15:00:37,992 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 87698 states to 87698 states and 115212 transitions. [2018-07-24 15:00:37,995 INFO L78 Accepts]: Start accepts. Automaton has 87698 states and 115212 transitions. Word has length 395 [2018-07-24 15:00:37,995 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-24 15:00:37,996 INFO L471 AbstractCegarLoop]: Abstraction has 87698 states and 115212 transitions. [2018-07-24 15:00:37,996 INFO L472 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-07-24 15:00:37,996 INFO L276 IsEmpty]: Start isEmpty. Operand 87698 states and 115212 transitions. [2018-07-24 15:00:38,016 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 420 [2018-07-24 15:00:38,016 INFO L345 BasicCegarLoop]: Found error trace [2018-07-24 15:00:38,017 INFO L353 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2018-07-24 15:00:38,017 INFO L414 AbstractCegarLoop]: === Iteration 9 === [__U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___true_unreach_call_c__calculate_outputErr0AssertViolationERROR_FUNCTION]=== [2018-07-24 15:00:38,017 INFO L82 PathProgramCache]: Analyzing trace with hash 338504369, now seen corresponding path program 1 times [2018-07-24 15:00:38,017 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-07-24 15:00:38,018 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 15:00:38,018 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 15:00:38,018 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 15:00:38,019 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-07-24 15:00:38,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 15:00:38,601 INFO L134 CoverageAnalysis]: Checked inductivity of 395 backedges. 117 proven. 0 refuted. 0 times theorem prover too weak. 278 trivial. 0 not checked. [2018-07-24 15:00:38,601 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-24 15:00:38,601 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-07-24 15:00:38,601 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-07-24 15:00:38,602 INFO L450 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-07-24 15:00:38,602 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-07-24 15:00:38,602 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-07-24 15:00:38,602 INFO L87 Difference]: Start difference. First operand 87698 states and 115212 transitions. Second operand 4 states. Received shutdown request... [2018-07-24 15:00:43,747 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-07-24 15:00:43,748 WARN L540 AbstractCegarLoop]: Verification canceled [2018-07-24 15:00:43,753 WARN L202 ceAbstractionStarter]: Timeout [2018-07-24 15:00:43,753 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.07 03:00:43 BoogieIcfgContainer [2018-07-24 15:00:43,754 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-07-24 15:00:43,755 INFO L168 Benchmark]: Toolchain (without parser) took 243825.26 ms. Allocated memory was 1.6 GB in the beginning and 3.7 GB in the end (delta: 2.1 GB). Free memory was 1.4 GB in the beginning and 3.0 GB in the end (delta: -1.5 GB). Peak memory consumption was 612.8 MB. Max. memory is 7.1 GB. [2018-07-24 15:00:43,756 INFO L168 Benchmark]: CDTParser took 0.24 ms. Allocated memory is still 1.6 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-07-24 15:00:43,756 INFO L168 Benchmark]: CACSL2BoogieTranslator took 1807.64 ms. Allocated memory is still 1.6 GB. Free memory was 1.4 GB in the beginning and 1.2 GB in the end (delta: 190.3 MB). Peak memory consumption was 190.3 MB. Max. memory is 7.1 GB. [2018-07-24 15:00:43,757 INFO L168 Benchmark]: Boogie Procedure Inliner took 299.08 ms. Allocated memory is still 1.6 GB. Free memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 42.3 MB). Peak memory consumption was 42.3 MB. Max. memory is 7.1 GB. [2018-07-24 15:00:43,758 INFO L168 Benchmark]: Boogie Preprocessor took 933.63 ms. Allocated memory was 1.6 GB in the beginning and 2.5 GB in the end (delta: 950.5 MB). Free memory was 1.2 GB in the beginning and 2.4 GB in the end (delta: -1.2 GB). Peak memory consumption was 123.6 MB. Max. memory is 7.1 GB. [2018-07-24 15:00:43,759 INFO L168 Benchmark]: RCFGBuilder took 10193.70 ms. Allocated memory is still 2.5 GB. Free memory was 2.4 GB in the beginning and 1.9 GB in the end (delta: 498.6 MB). Peak memory consumption was 498.6 MB. Max. memory is 7.1 GB. [2018-07-24 15:00:43,759 INFO L168 Benchmark]: TraceAbstraction took 230585.11 ms. Allocated memory was 2.5 GB in the beginning and 3.7 GB in the end (delta: 1.2 GB). Free memory was 1.9 GB in the beginning and 3.0 GB in the end (delta: -1.1 GB). Peak memory consumption was 103.4 MB. Max. memory is 7.1 GB. [2018-07-24 15:00:43,764 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.24 ms. Allocated memory is still 1.6 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 1807.64 ms. Allocated memory is still 1.6 GB. Free memory was 1.4 GB in the beginning and 1.2 GB in the end (delta: 190.3 MB). Peak memory consumption was 190.3 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 299.08 ms. Allocated memory is still 1.6 GB. Free memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 42.3 MB). Peak memory consumption was 42.3 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 933.63 ms. Allocated memory was 1.6 GB in the beginning and 2.5 GB in the end (delta: 950.5 MB). Free memory was 1.2 GB in the beginning and 2.4 GB in the end (delta: -1.2 GB). Peak memory consumption was 123.6 MB. Max. memory is 7.1 GB. * RCFGBuilder took 10193.70 ms. Allocated memory is still 2.5 GB. Free memory was 2.4 GB in the beginning and 1.9 GB in the end (delta: 498.6 MB). Peak memory consumption was 498.6 MB. Max. memory is 7.1 GB. * TraceAbstraction took 230585.11 ms. Allocated memory was 2.5 GB in the beginning and 3.7 GB in the end (delta: 1.2 GB). Free memory was 1.9 GB in the beginning and 3.0 GB in the end (delta: -1.1 GB). Peak memory consumption was 103.4 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResultAtElement [Line: 119]: Timeout (TraceAbstraction) Unable to prove that call of __VERIFIER_error() unreachable (line 119). Cancelled while BasicCegarLoop was constructing difference of abstraction (87698states) and interpolant automaton (currently 4 states, 4 states before enhancement), while ReachableStatesComputation was computing reachable states (51780 states constructedinput type IntersectNwa). - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 604 locations, 1 error locations. TIMEOUT Result, 230.5s OverallTime, 9 OverallIterations, 5 TraceHistogramMax, 134.9s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 3364 SDtfs, 21740 SDslu, 3191 SDs, 0 SdLazy, 44622 SolverSat, 8036 SolverUnsat, 4 SolverUnknown, 0 SolverNotchecked, 114.8s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 4613 GetRequests, 4434 SyntacticMatches, 25 SemanticMatches, 154 ConstructedPredicates, 0 IntricatePredicates, 3 DeprecatedPredicates, 2056 ImplicationChecksByTransitivity, 82.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=87698occurred in iteration=8, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s AbstIntTime, 0 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 6.0s AutomataMinimizationTime, 8 MinimizatonAttempts, 19069 StatesRemovedByMinimization, 8 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.2s SsaConstructionTime, 1.5s SatisfiabilityAnalysisTime, 86.3s InterpolantComputationTime, 4223 NumberOfCodeBlocks, 4223 NumberOfCodeBlocksAsserted, 18 NumberOfCheckSat, 6410 ConstructedInterpolants, 399 QuantifiedInterpolants, 8431135 SizeOfPredicates, 22 NumberOfNonLiveVariables, 4098 ConjunctsInSsa, 90 ConjunctsInUnsatCore, 27 InterpolantComputations, 7 PerfectInterpolantSequences, 4890/6655 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Written .csv to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/csv/Problem17_label51_true-unreach-call.c_svcomp-Reach-64bit-RubberTaipan_Default-OldIcfg.epf_AutomizerCInline.xml/Csv-Benchmark-0-2018-07-24_15-00-43-780.csv Written .csv to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/csv/Problem17_label51_true-unreach-call.c_svcomp-Reach-64bit-RubberTaipan_Default-OldIcfg.epf_AutomizerCInline.xml/Csv-TraceAbstractionBenchmarks-0-2018-07-24_15-00-43-780.csv Completed graceful shutdown