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_label49_true-unreach-call.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-dd2f093 [2018-07-24 14:38:12,776 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-07-24 14:38:12,778 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-07-24 14:38:12,791 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-07-24 14:38:12,791 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-07-24 14:38:12,792 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-07-24 14:38:12,793 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-07-24 14:38:12,795 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-07-24 14:38:12,797 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-07-24 14:38:12,798 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-07-24 14:38:12,799 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-07-24 14:38:12,799 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-07-24 14:38:12,800 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-07-24 14:38:12,801 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-07-24 14:38:12,804 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-07-24 14:38:12,805 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-07-24 14:38:12,810 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-07-24 14:38:12,812 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-07-24 14:38:12,814 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-07-24 14:38:12,816 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-07-24 14:38:12,817 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-07-24 14:38:12,818 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-07-24 14:38:12,825 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-07-24 14:38:12,825 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-07-24 14:38:12,826 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-07-24 14:38:12,828 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-07-24 14:38:12,829 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-07-24 14:38:12,830 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-07-24 14:38:12,831 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-07-24 14:38:12,832 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-07-24 14:38:12,832 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-07-24 14:38:12,836 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-07-24 14:38:12,836 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-07-24 14:38:12,836 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-07-24 14:38:12,839 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-07-24 14:38:12,840 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-07-24 14:38:12,841 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 14:38:12,870 INFO L110 SettingsManager]: Loading preferences was successful [2018-07-24 14:38:12,871 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-07-24 14:38:12,872 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-07-24 14:38:12,872 INFO L133 SettingsManager]: * User list type=DISABLED [2018-07-24 14:38:12,872 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-07-24 14:38:12,873 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-07-24 14:38:12,873 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-07-24 14:38:12,873 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-07-24 14:38:12,873 INFO L133 SettingsManager]: * Log string format=TERM [2018-07-24 14:38:12,873 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-07-24 14:38:12,874 INFO L133 SettingsManager]: * Interval Domain=false [2018-07-24 14:38:12,874 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-07-24 14:38:12,874 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-07-24 14:38:12,875 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-07-24 14:38:12,875 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-07-24 14:38:12,875 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-07-24 14:38:12,876 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-07-24 14:38:12,877 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-07-24 14:38:12,877 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-07-24 14:38:12,877 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-07-24 14:38:12,877 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-07-24 14:38:12,878 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-07-24 14:38:12,878 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-07-24 14:38:12,878 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-07-24 14:38:12,878 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-07-24 14:38:12,878 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-07-24 14:38:12,879 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-07-24 14:38:12,879 INFO L133 SettingsManager]: * Trace refinement strategy=RUBBER_TAIPAN [2018-07-24 14:38:12,879 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-07-24 14:38:12,879 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-07-24 14:38:12,879 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-07-24 14:38:12,879 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-07-24 14:38:12,880 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-07-24 14:38:12,929 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-07-24 14:38:12,941 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-07-24 14:38:12,945 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-07-24 14:38:12,947 INFO L271 PluginConnector]: Initializing CDTParser... [2018-07-24 14:38:12,947 INFO L276 PluginConnector]: CDTParser initialized [2018-07-24 14:38:12,948 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem15_label49_true-unreach-call.c [2018-07-24 14:38:13,289 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/86a38b44b/2afc6711075d4973ace4df47e40ff5de/FLAG75c53980d [2018-07-24 14:38:13,706 INFO L276 CDTParser]: Found 1 translation units. [2018-07-24 14:38:13,707 INFO L158 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem15_label49_true-unreach-call.c [2018-07-24 14:38:13,742 INFO L324 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/86a38b44b/2afc6711075d4973ace4df47e40ff5de/FLAG75c53980d [2018-07-24 14:38:13,761 INFO L332 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/86a38b44b/2afc6711075d4973ace4df47e40ff5de [2018-07-24 14:38:13,774 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-07-24 14:38:13,777 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-07-24 14:38:13,778 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-07-24 14:38:13,778 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-07-24 14:38:13,787 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-07-24 14:38:13,789 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.07 02:38:13" (1/1) ... [2018-07-24 14:38:13,793 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@42258277 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.07 02:38:13, skipping insertion in model container [2018-07-24 14:38:13,793 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.07 02:38:13" (1/1) ... [2018-07-24 14:38:14,048 INFO L179 PRDispatcher]: Starting pre-run dispatcher in SV-COMP mode [2018-07-24 14:38:14,637 INFO L175 PostProcessor]: Settings: Checked method=main [2018-07-24 14:38:14,656 INFO L422 MainDispatcher]: Starting main dispatcher in SV-COMP mode [2018-07-24 14:38:14,987 INFO L175 PostProcessor]: Settings: Checked method=main [2018-07-24 14:38:15,144 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.07 02:38:15 WrapperNode [2018-07-24 14:38:15,145 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-07-24 14:38:15,146 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-07-24 14:38:15,146 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-07-24 14:38:15,146 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-07-24 14:38:15,156 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.07 02:38:15" (1/1) ... [2018-07-24 14:38:15,231 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.07 02:38:15" (1/1) ... [2018-07-24 14:38:15,386 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-07-24 14:38:15,386 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-07-24 14:38:15,387 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-07-24 14:38:15,387 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-07-24 14:38:15,398 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.07 02:38:15" (1/1) ... [2018-07-24 14:38:15,399 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.07 02:38:15" (1/1) ... [2018-07-24 14:38:15,431 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.07 02:38:15" (1/1) ... [2018-07-24 14:38:15,432 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.07 02:38:15" (1/1) ... [2018-07-24 14:38:15,953 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.07 02:38:15" (1/1) ... [2018-07-24 14:38:15,982 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.07 02:38:15" (1/1) ... [2018-07-24 14:38:16,013 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.07 02:38:15" (1/1) ... [2018-07-24 14:38:16,054 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-07-24 14:38:16,055 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-07-24 14:38:16,055 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-07-24 14:38:16,055 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-07-24 14:38:16,058 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.07 02:38:15" (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 14:38:16,128 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-07-24 14:38:16,128 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-07-24 14:38:16,128 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 14:38:16,129 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 14:38:16,129 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-07-24 14:38:16,129 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-07-24 14:38:16,129 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-07-24 14:38:16,129 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-07-24 14:38:16,129 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 14:38:16,130 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 14:38:24,242 INFO L261 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-07-24 14:38:24,243 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.07 02:38:24 BoogieIcfgContainer [2018-07-24 14:38:24,243 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-07-24 14:38:24,244 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-07-24 14:38:24,245 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-07-24 14:38:24,248 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-07-24 14:38:24,250 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.07 02:38:13" (1/3) ... [2018-07-24 14:38:24,251 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3923a06b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.07 02:38:24, skipping insertion in model container [2018-07-24 14:38:24,251 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.07 02:38:15" (2/3) ... [2018-07-24 14:38:24,251 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3923a06b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.07 02:38:24, skipping insertion in model container [2018-07-24 14:38:24,252 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.07 02:38:24" (3/3) ... [2018-07-24 14:38:24,254 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem15_label49_true-unreach-call.c [2018-07-24 14:38:24,263 INFO L132 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-07-24 14:38:24,272 INFO L144 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-07-24 14:38:24,332 INFO L128 ementStrategyFactory]: Using default assertion order modulation [2018-07-24 14:38:24,333 INFO L373 AbstractCegarLoop]: Interprodecural is true [2018-07-24 14:38:24,333 INFO L374 AbstractCegarLoop]: Hoare is true [2018-07-24 14:38:24,333 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-07-24 14:38:24,333 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-07-24 14:38:24,333 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-07-24 14:38:24,334 INFO L378 AbstractCegarLoop]: Difference is false [2018-07-24 14:38:24,334 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-07-24 14:38:24,334 INFO L384 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-07-24 14:38:24,366 INFO L276 IsEmpty]: Start isEmpty. Operand 438 states. [2018-07-24 14:38:24,376 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2018-07-24 14:38:24,376 INFO L345 BasicCegarLoop]: Found error trace [2018-07-24 14:38:24,377 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-07-24 14:38:24,378 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 14:38:24,387 INFO L82 PathProgramCache]: Analyzing trace with hash 549187969, now seen corresponding path program 1 times [2018-07-24 14:38:24,390 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-07-24 14:38:24,438 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 14:38:24,438 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 14:38:24,438 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 14:38:24,439 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-07-24 14:38:24,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 14:38:24,864 WARN L169 SmtUtils]: Spent 148.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 4 [2018-07-24 14:38:25,007 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 14:38:25,010 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-24 14:38:25,010 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-07-24 14:38:25,011 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-07-24 14:38:25,017 INFO L450 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-07-24 14:38:25,034 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-07-24 14:38:25,035 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-07-24 14:38:25,038 INFO L87 Difference]: Start difference. First operand 438 states. Second operand 3 states. [2018-07-24 14:38:30,862 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-24 14:38:30,863 INFO L93 Difference]: Finished difference Result 1194 states and 2152 transitions. [2018-07-24 14:38:30,864 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-07-24 14:38:30,866 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 59 [2018-07-24 14:38:30,867 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-24 14:38:30,892 INFO L225 Difference]: With dead ends: 1194 [2018-07-24 14:38:30,892 INFO L226 Difference]: Without dead ends: 754 [2018-07-24 14:38:30,901 INFO L573 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 2 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-07-24 14:38:30,921 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 754 states. [2018-07-24 14:38:31,024 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 754 to 752. [2018-07-24 14:38:31,027 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 752 states. [2018-07-24 14:38:31,034 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 752 states to 752 states and 1325 transitions. [2018-07-24 14:38:31,036 INFO L78 Accepts]: Start accepts. Automaton has 752 states and 1325 transitions. Word has length 59 [2018-07-24 14:38:31,037 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-24 14:38:31,037 INFO L471 AbstractCegarLoop]: Abstraction has 752 states and 1325 transitions. [2018-07-24 14:38:31,037 INFO L472 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-07-24 14:38:31,037 INFO L276 IsEmpty]: Start isEmpty. Operand 752 states and 1325 transitions. [2018-07-24 14:38:31,051 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134 [2018-07-24 14:38:31,051 INFO L345 BasicCegarLoop]: Found error trace [2018-07-24 14:38:31,052 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, 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] [2018-07-24 14:38:31,052 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 14:38:31,052 INFO L82 PathProgramCache]: Analyzing trace with hash -1966488739, now seen corresponding path program 1 times [2018-07-24 14:38:31,053 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-07-24 14:38:31,055 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 14:38:31,056 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 14:38:31,056 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 14:38:31,057 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-07-24 14:38:31,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 14:38:31,539 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 52 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-24 14:38:31,540 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-24 14:38:31,540 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2018-07-24 14:38:31,540 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-07-24 14:38:31,542 INFO L450 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-07-24 14:38:31,543 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-07-24 14:38:31,543 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2018-07-24 14:38:31,543 INFO L87 Difference]: Start difference. First operand 752 states and 1325 transitions. Second operand 7 states. [2018-07-24 14:38:41,447 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-24 14:38:41,447 INFO L93 Difference]: Finished difference Result 2228 states and 3960 transitions. [2018-07-24 14:38:41,449 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2018-07-24 14:38:41,449 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 133 [2018-07-24 14:38:41,449 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-24 14:38:41,464 INFO L225 Difference]: With dead ends: 2228 [2018-07-24 14:38:41,464 INFO L226 Difference]: Without dead ends: 1482 [2018-07-24 14:38:41,469 INFO L573 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=32, Invalid=58, Unknown=0, NotChecked=0, Total=90 [2018-07-24 14:38:41,470 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1482 states. [2018-07-24 14:38:41,528 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1482 to 1448. [2018-07-24 14:38:41,528 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1448 states. [2018-07-24 14:38:41,537 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1448 states to 1448 states and 2240 transitions. [2018-07-24 14:38:41,537 INFO L78 Accepts]: Start accepts. Automaton has 1448 states and 2240 transitions. Word has length 133 [2018-07-24 14:38:41,538 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-24 14:38:41,538 INFO L471 AbstractCegarLoop]: Abstraction has 1448 states and 2240 transitions. [2018-07-24 14:38:41,538 INFO L472 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-07-24 14:38:41,539 INFO L276 IsEmpty]: Start isEmpty. Operand 1448 states and 2240 transitions. [2018-07-24 14:38:41,544 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 147 [2018-07-24 14:38:41,544 INFO L345 BasicCegarLoop]: Found error trace [2018-07-24 14:38:41,544 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, 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 14:38:41,545 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 14:38:41,545 INFO L82 PathProgramCache]: Analyzing trace with hash 212905390, now seen corresponding path program 1 times [2018-07-24 14:38:41,545 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-07-24 14:38:41,546 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 14:38:41,546 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 14:38:41,547 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 14:38:41,547 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-07-24 14:38:41,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 14:38:41,807 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 52 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-24 14:38:41,807 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-24 14:38:41,807 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-07-24 14:38:41,808 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-07-24 14:38:41,808 INFO L450 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-07-24 14:38:41,809 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-07-24 14:38:41,809 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-07-24 14:38:41,809 INFO L87 Difference]: Start difference. First operand 1448 states and 2240 transitions. Second operand 6 states. [2018-07-24 14:38:50,802 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-24 14:38:50,803 INFO L93 Difference]: Finished difference Result 4174 states and 6572 transitions. [2018-07-24 14:38:50,805 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-07-24 14:38:50,805 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 146 [2018-07-24 14:38:50,806 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-24 14:38:50,827 INFO L225 Difference]: With dead ends: 4174 [2018-07-24 14:38:50,827 INFO L226 Difference]: Without dead ends: 2732 [2018-07-24 14:38:50,837 INFO L573 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2018-07-24 14:38:50,840 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2732 states. [2018-07-24 14:38:50,926 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2732 to 2667. [2018-07-24 14:38:50,927 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2667 states. [2018-07-24 14:38:50,943 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2667 states to 2667 states and 3772 transitions. [2018-07-24 14:38:50,943 INFO L78 Accepts]: Start accepts. Automaton has 2667 states and 3772 transitions. Word has length 146 [2018-07-24 14:38:50,944 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-24 14:38:50,944 INFO L471 AbstractCegarLoop]: Abstraction has 2667 states and 3772 transitions. [2018-07-24 14:38:50,944 INFO L472 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-07-24 14:38:50,944 INFO L276 IsEmpty]: Start isEmpty. Operand 2667 states and 3772 transitions. [2018-07-24 14:38:50,950 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 157 [2018-07-24 14:38:50,951 INFO L345 BasicCegarLoop]: Found error trace [2018-07-24 14:38:50,951 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, 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] [2018-07-24 14:38:50,951 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 14:38:50,952 INFO L82 PathProgramCache]: Analyzing trace with hash 1876280011, now seen corresponding path program 1 times [2018-07-24 14:38:50,952 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-07-24 14:38:50,953 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 14:38:50,953 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 14:38:50,953 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 14:38:50,953 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-07-24 14:38:50,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 14:38:51,296 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 52 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-24 14:38:51,297 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-24 14:38:51,297 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-07-24 14:38:51,297 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-07-24 14:38:51,298 INFO L450 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-07-24 14:38:51,298 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-07-24 14:38:51,298 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-07-24 14:38:51,298 INFO L87 Difference]: Start difference. First operand 2667 states and 3772 transitions. Second operand 5 states. [2018-07-24 14:39:07,632 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-24 14:39:07,633 INFO L93 Difference]: Finished difference Result 9739 states and 14060 transitions. [2018-07-24 14:39:07,645 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-07-24 14:39:07,646 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 156 [2018-07-24 14:39:07,646 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-24 14:39:07,691 INFO L225 Difference]: With dead ends: 9739 [2018-07-24 14:39:07,692 INFO L226 Difference]: Without dead ends: 7078 [2018-07-24 14:39:07,711 INFO L573 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2018-07-24 14:39:07,717 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7078 states. [2018-07-24 14:39:07,866 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7078 to 6950. [2018-07-24 14:39:07,867 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6950 states. [2018-07-24 14:39:07,886 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6950 states to 6950 states and 9201 transitions. [2018-07-24 14:39:07,887 INFO L78 Accepts]: Start accepts. Automaton has 6950 states and 9201 transitions. Word has length 156 [2018-07-24 14:39:07,887 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-24 14:39:07,887 INFO L471 AbstractCegarLoop]: Abstraction has 6950 states and 9201 transitions. [2018-07-24 14:39:07,887 INFO L472 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-07-24 14:39:07,888 INFO L276 IsEmpty]: Start isEmpty. Operand 6950 states and 9201 transitions. [2018-07-24 14:39:07,891 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 172 [2018-07-24 14:39:07,892 INFO L345 BasicCegarLoop]: Found error trace [2018-07-24 14:39:07,892 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, 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] [2018-07-24 14:39:07,892 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 14:39:07,892 INFO L82 PathProgramCache]: Analyzing trace with hash 1956691934, now seen corresponding path program 1 times [2018-07-24 14:39:07,893 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-07-24 14:39:07,893 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 14:39:07,894 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 14:39:07,894 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 14:39:07,894 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-07-24 14:39:07,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 14:39:08,348 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 0 proven. 52 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-24 14:39:08,349 INFO L297 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-07-24 14:39:08,349 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 14:39:08,360 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 14:39:08,360 INFO L288 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-07-24 14:39:08,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 14:39:08,474 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-07-24 14:39:09,060 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 52 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-24 14:39:09,061 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-07-24 14:39:09,606 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 52 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-24 14:39:09,644 INFO L309 seRefinementStrategy]: Constructing automaton from 2 perfect and 1 imperfect interpolant sequences. [2018-07-24 14:39:09,644 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [7] total 12 [2018-07-24 14:39:09,644 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-07-24 14:39:09,645 INFO L450 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-07-24 14:39:09,645 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-07-24 14:39:09,646 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=104, Unknown=0, NotChecked=0, Total=132 [2018-07-24 14:39:09,646 INFO L87 Difference]: Start difference. First operand 6950 states and 9201 transitions. Second operand 5 states. [2018-07-24 14:39:11,334 WARN L169 SmtUtils]: Spent 120.00 ms on a formula simplification that was a NOOP. DAG size: 12 [2018-07-24 14:39:21,722 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-24 14:39:21,722 INFO L93 Difference]: Finished difference Result 17805 states and 23939 transitions. [2018-07-24 14:39:21,724 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-07-24 14:39:21,724 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 171 [2018-07-24 14:39:21,724 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-24 14:39:21,771 INFO L225 Difference]: With dead ends: 17805 [2018-07-24 14:39:21,772 INFO L226 Difference]: Without dead ends: 10861 [2018-07-24 14:39:21,808 INFO L573 BasicCegarLoop]: 0 DeclaredPredicates, 352 GetRequests, 340 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=39, Invalid=143, Unknown=0, NotChecked=0, Total=182 [2018-07-24 14:39:21,818 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10861 states. [2018-07-24 14:39:22,036 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10861 to 10433. [2018-07-24 14:39:22,036 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10433 states. [2018-07-24 14:39:22,060 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10433 states to 10433 states and 13747 transitions. [2018-07-24 14:39:22,060 INFO L78 Accepts]: Start accepts. Automaton has 10433 states and 13747 transitions. Word has length 171 [2018-07-24 14:39:22,061 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-24 14:39:22,061 INFO L471 AbstractCegarLoop]: Abstraction has 10433 states and 13747 transitions. [2018-07-24 14:39:22,061 INFO L472 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-07-24 14:39:22,061 INFO L276 IsEmpty]: Start isEmpty. Operand 10433 states and 13747 transitions. [2018-07-24 14:39:22,068 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 205 [2018-07-24 14:39:22,069 INFO L345 BasicCegarLoop]: Found error trace [2018-07-24 14:39:22,069 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, 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] [2018-07-24 14:39:22,069 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 14:39:22,070 INFO L82 PathProgramCache]: Analyzing trace with hash 1823395733, now seen corresponding path program 1 times [2018-07-24 14:39:22,070 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-07-24 14:39:22,071 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 14:39:22,071 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 14:39:22,071 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 14:39:22,071 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-07-24 14:39:22,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 14:39:22,872 WARN L169 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 9 DAG size of output: 5 [2018-07-24 14:39:23,028 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 0 proven. 52 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-24 14:39:23,028 INFO L297 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-07-24 14:39:23,028 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 14:39:23,039 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 14:39:23,039 INFO L288 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-07-24 14:39:23,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 14:39:23,128 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-07-24 14:39:23,526 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 52 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-24 14:39:23,526 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-07-24 14:39:24,200 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 52 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-24 14:39:24,220 INFO L309 seRefinementStrategy]: Constructing automaton from 2 perfect and 1 imperfect interpolant sequences. [2018-07-24 14:39:24,221 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [7] total 12 [2018-07-24 14:39:24,221 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-07-24 14:39:24,223 INFO L450 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-07-24 14:39:24,223 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-07-24 14:39:24,224 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=104, Unknown=0, NotChecked=0, Total=132 [2018-07-24 14:39:24,224 INFO L87 Difference]: Start difference. First operand 10433 states and 13747 transitions. Second operand 5 states. [2018-07-24 14:39:33,648 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-24 14:39:33,648 INFO L93 Difference]: Finished difference Result 23170 states and 30833 transitions. [2018-07-24 14:39:33,648 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-07-24 14:39:33,649 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 204 [2018-07-24 14:39:33,649 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-24 14:39:33,712 INFO L225 Difference]: With dead ends: 23170 [2018-07-24 14:39:33,712 INFO L226 Difference]: Without dead ends: 12743 [2018-07-24 14:39:33,752 INFO L573 BasicCegarLoop]: 0 DeclaredPredicates, 418 GetRequests, 405 SyntacticMatches, 1 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=39, Invalid=143, Unknown=0, NotChecked=0, Total=182 [2018-07-24 14:39:33,763 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12743 states. [2018-07-24 14:39:34,124 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12743 to 11184. [2018-07-24 14:39:34,125 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11184 states. [2018-07-24 14:39:34,156 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11184 states to 11184 states and 14684 transitions. [2018-07-24 14:39:34,157 INFO L78 Accepts]: Start accepts. Automaton has 11184 states and 14684 transitions. Word has length 204 [2018-07-24 14:39:34,157 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-24 14:39:34,157 INFO L471 AbstractCegarLoop]: Abstraction has 11184 states and 14684 transitions. [2018-07-24 14:39:34,157 INFO L472 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-07-24 14:39:34,158 INFO L276 IsEmpty]: Start isEmpty. Operand 11184 states and 14684 transitions. [2018-07-24 14:39:34,174 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 268 [2018-07-24 14:39:34,174 INFO L345 BasicCegarLoop]: Found error trace [2018-07-24 14:39:34,174 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, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 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 14:39:34,175 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 14:39:34,175 INFO L82 PathProgramCache]: Analyzing trace with hash 884625716, now seen corresponding path program 1 times [2018-07-24 14:39:34,175 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-07-24 14:39:34,176 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 14:39:34,176 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 14:39:34,176 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 14:39:34,177 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-07-24 14:39:34,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 14:39:35,296 INFO L134 CoverageAnalysis]: Checked inductivity of 200 backedges. 198 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-24 14:39:35,296 INFO L297 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-07-24 14:39:35,297 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 14:39:35,304 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 14:39:35,304 INFO L288 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-07-24 14:39:35,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 14:39:35,404 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-07-24 14:39:35,738 INFO L134 CoverageAnalysis]: Checked inductivity of 200 backedges. 159 proven. 41 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-24 14:39:35,739 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-07-24 14:39:36,202 INFO L134 CoverageAnalysis]: Checked inductivity of 200 backedges. 109 proven. 91 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-24 14:39:36,223 INFO L297 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-07-24 14:39:36,223 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 14:39:36,242 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 14:39:36,243 INFO L288 anRefinementStrategy]: Using traceCheck mode CVC4_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-07-24 14:39:36,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 14:39:36,458 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-07-24 14:39:36,785 INFO L134 CoverageAnalysis]: Checked inductivity of 200 backedges. 109 proven. 41 refuted. 0 times theorem prover too weak. 50 trivial. 0 not checked. [2018-07-24 14:39:36,785 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-07-24 14:39:37,378 INFO L134 CoverageAnalysis]: Checked inductivity of 200 backedges. 109 proven. 91 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-24 14:39:37,380 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 5 imperfect interpolant sequences. [2018-07-24 14:39:37,381 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 9, 9, 8, 9] total 24 [2018-07-24 14:39:37,381 INFO L251 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-07-24 14:39:37,382 INFO L450 AbstractCegarLoop]: Interpolant automaton has 14 states [2018-07-24 14:39:37,382 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2018-07-24 14:39:37,382 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=124, Invalid=428, Unknown=0, NotChecked=0, Total=552 [2018-07-24 14:39:37,383 INFO L87 Difference]: Start difference. First operand 11184 states and 14684 transitions. Second operand 14 states. [2018-07-24 14:40:03,107 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-24 14:40:03,108 INFO L93 Difference]: Finished difference Result 27856 states and 37383 transitions. [2018-07-24 14:40:03,108 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2018-07-24 14:40:03,108 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 267 [2018-07-24 14:40:03,109 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-24 14:40:03,162 INFO L225 Difference]: With dead ends: 27856 [2018-07-24 14:40:03,163 INFO L226 Difference]: Without dead ends: 16095 [2018-07-24 14:40:03,198 INFO L573 BasicCegarLoop]: 0 DeclaredPredicates, 1102 GetRequests, 1054 SyntacticMatches, 2 SemanticMatches, 46 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 595 ImplicationChecksByTransitivity, 2.0s TimeCoverageRelationStatistics Valid=527, Invalid=1729, Unknown=0, NotChecked=0, Total=2256 [2018-07-24 14:40:03,212 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16095 states. [2018-07-24 14:40:03,436 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16095 to 13597. [2018-07-24 14:40:03,437 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13597 states. [2018-07-24 14:40:03,467 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13597 states to 13597 states and 17988 transitions. [2018-07-24 14:40:03,467 INFO L78 Accepts]: Start accepts. Automaton has 13597 states and 17988 transitions. Word has length 267 [2018-07-24 14:40:03,467 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-24 14:40:03,468 INFO L471 AbstractCegarLoop]: Abstraction has 13597 states and 17988 transitions. [2018-07-24 14:40:03,468 INFO L472 AbstractCegarLoop]: Interpolant automaton has 14 states. [2018-07-24 14:40:03,468 INFO L276 IsEmpty]: Start isEmpty. Operand 13597 states and 17988 transitions. [2018-07-24 14:40:03,478 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 353 [2018-07-24 14:40:03,478 INFO L345 BasicCegarLoop]: Found error trace [2018-07-24 14:40:03,479 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, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 14:40:03,479 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 14:40:03,479 INFO L82 PathProgramCache]: Analyzing trace with hash 2039551969, now seen corresponding path program 1 times [2018-07-24 14:40:03,479 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-07-24 14:40:03,480 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 14:40:03,480 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 14:40:03,480 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 14:40:03,481 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-07-24 14:40:03,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 14:40:04,660 INFO L134 CoverageAnalysis]: Checked inductivity of 216 backedges. 214 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-24 14:40:04,661 INFO L297 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-07-24 14:40:04,661 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 14:40:04,669 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 14:40:04,669 INFO L288 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-07-24 14:40:04,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 14:40:04,796 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-07-24 14:40:05,086 INFO L134 CoverageAnalysis]: Checked inductivity of 216 backedges. 159 proven. 57 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-24 14:40:05,086 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-07-24 14:40:05,862 INFO L134 CoverageAnalysis]: Checked inductivity of 216 backedges. 109 proven. 107 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-24 14:40:05,885 INFO L297 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-07-24 14:40:05,885 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 14:40:05,902 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 14:40:05,902 INFO L288 anRefinementStrategy]: Using traceCheck mode CVC4_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-07-24 14:40:06,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 14:40:06,185 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-07-24 14:40:06,596 INFO L134 CoverageAnalysis]: Checked inductivity of 216 backedges. 109 proven. 57 refuted. 0 times theorem prover too weak. 50 trivial. 0 not checked. [2018-07-24 14:40:06,597 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-07-24 14:40:07,191 INFO L134 CoverageAnalysis]: Checked inductivity of 216 backedges. 109 proven. 107 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-24 14:40:07,193 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 5 imperfect interpolant sequences. [2018-07-24 14:40:07,194 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 9, 9, 8, 9] total 24 [2018-07-24 14:40:07,194 INFO L251 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-07-24 14:40:07,194 INFO L450 AbstractCegarLoop]: Interpolant automaton has 14 states [2018-07-24 14:40:07,195 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2018-07-24 14:40:07,195 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=121, Invalid=431, Unknown=0, NotChecked=0, Total=552 [2018-07-24 14:40:07,195 INFO L87 Difference]: Start difference. First operand 13597 states and 17988 transitions. Second operand 14 states. [2018-07-24 14:40:35,485 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-24 14:40:35,485 INFO L93 Difference]: Finished difference Result 31759 states and 42079 transitions. [2018-07-24 14:40:35,486 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2018-07-24 14:40:35,486 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 352 [2018-07-24 14:40:35,487 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-24 14:40:35,543 INFO L225 Difference]: With dead ends: 31759 [2018-07-24 14:40:35,543 INFO L226 Difference]: Without dead ends: 17584 [2018-07-24 14:40:35,572 INFO L573 BasicCegarLoop]: 0 DeclaredPredicates, 1442 GetRequests, 1391 SyntacticMatches, 5 SemanticMatches, 46 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 610 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=524, Invalid=1732, Unknown=0, NotChecked=0, Total=2256 [2018-07-24 14:40:35,586 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17584 states. [2018-07-24 14:40:36,033 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17584 to 14328. [2018-07-24 14:40:36,033 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14328 states. [2018-07-24 14:40:36,063 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14328 states to 14328 states and 18632 transitions. [2018-07-24 14:40:36,064 INFO L78 Accepts]: Start accepts. Automaton has 14328 states and 18632 transitions. Word has length 352 [2018-07-24 14:40:36,069 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-24 14:40:36,069 INFO L471 AbstractCegarLoop]: Abstraction has 14328 states and 18632 transitions. [2018-07-24 14:40:36,069 INFO L472 AbstractCegarLoop]: Interpolant automaton has 14 states. [2018-07-24 14:40:36,069 INFO L276 IsEmpty]: Start isEmpty. Operand 14328 states and 18632 transitions. [2018-07-24 14:40:36,081 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 410 [2018-07-24 14:40:36,081 INFO L345 BasicCegarLoop]: Found error trace [2018-07-24 14:40:36,082 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, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 14:40:36,082 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 14:40:36,082 INFO L82 PathProgramCache]: Analyzing trace with hash 461097793, now seen corresponding path program 1 times [2018-07-24 14:40:36,082 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-07-24 14:40:36,083 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 14:40:36,083 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 14:40:36,084 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 14:40:36,084 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-07-24 14:40:36,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 14:40:36,593 INFO L134 CoverageAnalysis]: Checked inductivity of 216 backedges. 55 proven. 155 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2018-07-24 14:40:36,594 INFO L297 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-07-24 14:40:36,594 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 14:40:36,601 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 14:40:36,602 INFO L288 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-07-24 14:40:36,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 14:40:36,746 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-07-24 14:40:37,379 INFO L134 CoverageAnalysis]: Checked inductivity of 216 backedges. 214 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-24 14:40:37,380 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-07-24 14:40:37,581 WARN L169 SmtUtils]: Spent 198.00 ms on a formula simplification. DAG size of input: 20 DAG size of output: 16 [2018-07-24 14:40:37,828 INFO L134 CoverageAnalysis]: Checked inductivity of 216 backedges. 214 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-24 14:40:37,850 INFO L297 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-07-24 14:40:37,850 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 14:40:37,864 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 14:40:37,865 INFO L288 anRefinementStrategy]: Using traceCheck mode CVC4_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-07-24 14:40:38,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 14:40:38,188 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-07-24 14:40:38,515 INFO L134 CoverageAnalysis]: Checked inductivity of 216 backedges. 105 proven. 2 refuted. 0 times theorem prover too weak. 109 trivial. 0 not checked. [2018-07-24 14:40:38,515 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-07-24 14:40:39,386 INFO L134 CoverageAnalysis]: Checked inductivity of 216 backedges. 107 proven. 0 refuted. 0 times theorem prover too weak. 109 trivial. 0 not checked. [2018-07-24 14:40:39,388 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 4 imperfect interpolant sequences. [2018-07-24 14:40:39,389 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [8, 5, 5, 5] total 17 [2018-07-24 14:40:39,389 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-07-24 14:40:39,389 INFO L450 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-07-24 14:40:39,390 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-07-24 14:40:39,390 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=56, Invalid=216, Unknown=0, NotChecked=0, Total=272 [2018-07-24 14:40:39,390 INFO L87 Difference]: Start difference. First operand 14328 states and 18632 transitions. Second operand 5 states. [2018-07-24 14:40:45,257 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-24 14:40:45,258 INFO L93 Difference]: Finished difference Result 36451 states and 48096 transitions. [2018-07-24 14:40:45,258 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-07-24 14:40:45,258 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 409 [2018-07-24 14:40:45,259 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-24 14:40:45,313 INFO L225 Difference]: With dead ends: 36451 [2018-07-24 14:40:45,313 INFO L226 Difference]: Without dead ends: 22440 [2018-07-24 14:40:45,348 INFO L573 BasicCegarLoop]: 0 DeclaredPredicates, 1647 GetRequests, 1628 SyntacticMatches, 3 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 71 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=63, Invalid=243, Unknown=0, NotChecked=0, Total=306 [2018-07-24 14:40:45,363 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22440 states. [2018-07-24 14:40:45,633 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22440 to 21636. [2018-07-24 14:40:45,634 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21636 states. [2018-07-24 14:40:45,680 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21636 states to 21636 states and 27596 transitions. [2018-07-24 14:40:45,681 INFO L78 Accepts]: Start accepts. Automaton has 21636 states and 27596 transitions. Word has length 409 [2018-07-24 14:40:45,682 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-24 14:40:45,682 INFO L471 AbstractCegarLoop]: Abstraction has 21636 states and 27596 transitions. [2018-07-24 14:40:45,682 INFO L472 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-07-24 14:40:45,682 INFO L276 IsEmpty]: Start isEmpty. Operand 21636 states and 27596 transitions. [2018-07-24 14:40:45,706 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 443 [2018-07-24 14:40:45,706 INFO L345 BasicCegarLoop]: Found error trace [2018-07-24 14:40:45,707 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, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 14:40:45,707 INFO L414 AbstractCegarLoop]: === Iteration 10 === [__U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___true_unreach_call_c__calculate_outputErr0AssertViolationERROR_FUNCTION]=== [2018-07-24 14:40:45,707 INFO L82 PathProgramCache]: Analyzing trace with hash 1307180178, now seen corresponding path program 1 times [2018-07-24 14:40:45,708 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-07-24 14:40:45,708 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 14:40:45,708 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 14:40:45,709 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 14:40:45,709 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-07-24 14:40:45,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 14:40:46,472 WARN L169 SmtUtils]: Spent 388.00 ms on a formula simplification. DAG size of input: 18 DAG size of output: 8 [2018-07-24 14:40:46,922 WARN L169 SmtUtils]: Spent 122.00 ms on a formula simplification. DAG size of input: 10 DAG size of output: 3 [2018-07-24 14:40:47,890 INFO L134 CoverageAnalysis]: Checked inductivity of 249 backedges. 109 proven. 131 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2018-07-24 14:40:47,890 INFO L297 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-07-24 14:40:47,890 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 14:40:47,898 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 14:40:47,899 INFO L288 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-07-24 14:40:48,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 14:40:48,046 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-07-24 14:40:48,210 INFO L134 CoverageAnalysis]: Checked inductivity of 249 backedges. 247 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-24 14:40:48,210 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-07-24 14:40:48,346 WARN L169 SmtUtils]: Spent 133.00 ms on a formula simplification. DAG size of input: 20 DAG size of output: 15 [2018-07-24 14:40:48,676 INFO L134 CoverageAnalysis]: Checked inductivity of 249 backedges. 247 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-24 14:40:48,696 INFO L297 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-07-24 14:40:48,697 INFO L191 anRefinementStrategy]: Switched to InterpolantGenerator mode CVC4_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4nyu Starting monitored process 11 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk --tlimit-per=12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 11 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk --tlimit-per=12000 [2018-07-24 14:40:48,713 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 14:40:48,714 INFO L288 anRefinementStrategy]: Using traceCheck mode CVC4_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-07-24 14:40:49,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 14:40:49,066 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-07-24 14:40:49,233 INFO L134 CoverageAnalysis]: Checked inductivity of 249 backedges. 105 proven. 2 refuted. 0 times theorem prover too weak. 142 trivial. 0 not checked. [2018-07-24 14:40:49,233 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-07-24 14:40:49,918 INFO L134 CoverageAnalysis]: Checked inductivity of 249 backedges. 107 proven. 0 refuted. 0 times theorem prover too weak. 142 trivial. 0 not checked. [2018-07-24 14:40:49,921 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 4 imperfect interpolant sequences. [2018-07-24 14:40:49,921 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [10, 5, 5, 5] total 17 [2018-07-24 14:40:49,921 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-07-24 14:40:49,922 INFO L450 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-07-24 14:40:49,922 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-07-24 14:40:49,922 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=75, Invalid=197, Unknown=0, NotChecked=0, Total=272 [2018-07-24 14:40:49,923 INFO L87 Difference]: Start difference. First operand 21636 states and 27596 transitions. Second operand 5 states. [2018-07-24 14:40:55,966 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-24 14:40:55,966 INFO L93 Difference]: Finished difference Result 46749 states and 60331 transitions. [2018-07-24 14:40:55,967 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-07-24 14:40:55,967 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 442 [2018-07-24 14:40:55,968 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-24 14:40:56,026 INFO L225 Difference]: With dead ends: 46749 [2018-07-24 14:40:56,026 INFO L226 Difference]: Without dead ends: 25430 [2018-07-24 14:40:56,072 INFO L573 BasicCegarLoop]: 0 DeclaredPredicates, 1781 GetRequests, 1756 SyntacticMatches, 9 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 135 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=84, Invalid=222, Unknown=0, NotChecked=0, Total=306 [2018-07-24 14:40:56,088 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25430 states. [2018-07-24 14:40:56,398 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25430 to 25119. [2018-07-24 14:40:56,399 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 25119 states. [2018-07-24 14:40:56,445 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25119 states to 25119 states and 30290 transitions. [2018-07-24 14:40:56,445 INFO L78 Accepts]: Start accepts. Automaton has 25119 states and 30290 transitions. Word has length 442 [2018-07-24 14:40:56,446 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-24 14:40:56,446 INFO L471 AbstractCegarLoop]: Abstraction has 25119 states and 30290 transitions. [2018-07-24 14:40:56,446 INFO L472 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-07-24 14:40:56,446 INFO L276 IsEmpty]: Start isEmpty. Operand 25119 states and 30290 transitions. [2018-07-24 14:40:56,461 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 447 [2018-07-24 14:40:56,461 INFO L345 BasicCegarLoop]: Found error trace [2018-07-24 14:40:56,461 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, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 14:40:56,462 INFO L414 AbstractCegarLoop]: === Iteration 11 === [__U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___true_unreach_call_c__calculate_outputErr0AssertViolationERROR_FUNCTION]=== [2018-07-24 14:40:56,462 INFO L82 PathProgramCache]: Analyzing trace with hash -1398410215, now seen corresponding path program 1 times [2018-07-24 14:40:56,462 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-07-24 14:40:56,463 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 14:40:56,463 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 14:40:56,463 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 14:40:56,463 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-07-24 14:40:56,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 14:40:57,813 INFO L134 CoverageAnalysis]: Checked inductivity of 216 backedges. 55 proven. 155 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2018-07-24 14:40:57,813 INFO L297 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-07-24 14:40:57,814 INFO L191 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 12 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 12 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-07-24 14:40:57,828 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 14:40:57,828 INFO L288 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-07-24 14:40:57,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 14:40:57,994 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-07-24 14:41:14,627 WARN L169 SmtUtils]: Spent 16.29 s on a formula simplification. DAG size of input: 116 DAG size of output: 50 [2018-07-24 14:41:14,987 INFO L134 CoverageAnalysis]: Checked inductivity of 216 backedges. 161 proven. 55 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-24 14:41:14,987 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-07-24 14:41:15,183 WARN L169 SmtUtils]: Spent 159.00 ms on a formula simplification. DAG size of input: 35 DAG size of output: 31 [2018-07-24 14:41:15,568 INFO L134 CoverageAnalysis]: Checked inductivity of 216 backedges. 161 proven. 55 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-24 14:41:15,589 INFO L297 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-07-24 14:41:15,590 INFO L191 anRefinementStrategy]: Switched to InterpolantGenerator mode CVC4_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4nyu Starting monitored process 13 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk --tlimit-per=12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 13 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk --tlimit-per=12000 [2018-07-24 14:41:15,880 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 14:41:15,880 INFO L288 anRefinementStrategy]: Using traceCheck mode CVC4_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-07-24 14:41:16,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 14:41:16,217 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-07-24 14:41:22,861 WARN L169 SmtUtils]: Spent 6.43 s on a formula simplification. DAG size of input: 59 DAG size of output: 45 [2018-07-24 14:41:25,269 INFO L134 CoverageAnalysis]: Checked inductivity of 216 backedges. 105 proven. 111 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-24 14:41:25,269 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-07-24 14:41:30,632 WARN L169 SmtUtils]: Spent 4.97 s on a formula simplification. DAG size of input: 61 DAG size of output: 30 [2018-07-24 14:41:37,101 WARN L169 SmtUtils]: Spent 4.13 s on a formula simplification that was a NOOP. DAG size: 48 [2018-07-24 14:41:37,106 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 14:41:37,183 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 18 [2018-07-24 14:42:09,214 WARN L169 SmtUtils]: Spent 29.89 s on a formula simplification. DAG size of input: 84 DAG size of output: 76 [2018-07-24 14:42:09,219 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 14:42:09,226 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 14:42:09,232 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 14:42:09,238 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 14:42:09,244 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 14:42:09,251 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 14:42:09,256 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 14:42:09,262 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 14:42:09,268 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 14:42:09,273 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 14:42:09,279 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 14:42:09,285 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 14:42:09,291 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 14:42:09,297 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 14:42:09,303 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 14:42:09,308 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 14:42:09,315 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 14:42:09,320 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 14:42:09,326 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 14:42:09,331 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 14:42:09,337 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 14:42:09,344 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 14:42:09,349 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 14:42:09,355 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 14:42:09,361 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 14:42:09,367 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 14:42:09,373 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 14:42:09,379 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 14:42:09,385 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 14:42:09,391 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 14:42:09,397 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 14:42:09,403 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 14:42:09,409 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 14:42:09,415 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 14:42:09,421 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 14:42:09,427 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 14:42:09,432 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 14:42:09,438 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 14:42:09,444 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 14:42:09,450 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 14:42:09,456 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 14:42:09,461 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 14:42:09,467 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 14:42:09,473 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 14:42:09,478 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 14:42:09,484 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 14:42:09,491 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 14:42:09,497 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 14:42:09,503 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 14:42:09,508 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 14:42:09,514 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 14:42:09,520 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 14:42:09,528 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 14:42:09,534 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 14:42:09,540 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 14:42:09,546 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 14:42:09,551 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 14:42:09,557 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 14:42:09,562 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 14:42:09,567 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 14:42:09,573 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 14:42:09,578 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 14:42:09,583 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 14:42:09,589 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 14:42:09,594 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 14:42:09,600 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 14:42:09,606 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 14:42:09,612 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 14:42:09,617 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 14:42:09,622 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 14:42:09,628 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 14:42:09,633 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 14:42:09,639 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 14:42:09,645 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 14:42:09,651 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 14:42:09,657 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 14:42:09,663 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 14:42:09,668 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 14:42:09,674 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 14:42:09,679 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 14:42:09,685 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 14:42:09,691 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 14:42:09,697 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 14:42:09,704 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 14:42:09,709 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 14:42:09,715 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 14:42:09,720 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 14:42:09,726 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 14:42:09,731 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 14:42:09,737 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 14:42:09,743 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 14:42:09,748 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 14:42:09,754 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 14:42:09,759 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 14:42:09,764 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 14:42:09,770 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 14:42:09,776 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 14:42:09,782 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 14:42:09,789 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 14:42:09,794 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 14:42:09,800 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 14:42:09,805 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 14:42:09,810 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 14:42:09,815 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 14:42:09,820 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 14:42:09,826 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 14:42:09,831 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 14:42:09,836 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 14:42:09,841 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 14:42:09,846 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 14:42:09,852 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 14:42:09,857 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 14:42:09,862 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 14:42:09,867 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 14:42:09,872 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 14:42:09,878 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 14:42:09,884 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 14:42:09,889 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 14:42:09,894 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 14:42:09,900 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 14:42:09,905 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 14:42:09,910 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 14:42:09,915 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 14:42:09,921 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 14:42:09,926 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 14:42:09,932 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 14:42:09,937 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 14:42:09,942 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 14:42:09,947 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 14:42:09,952 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 14:42:09,957 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 14:42:09,962 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 14:42:09,967 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 14:42:09,972 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 14:42:09,977 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 14:42:09,982 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 14:42:09,987 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 14:42:09,992 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 14:42:09,997 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 14:42:10,003 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 14:42:10,008 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 14:42:10,013 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 14:42:10,018 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 14:42:10,023 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 14:42:10,028 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 14:42:10,033 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 14:42:10,039 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 14:42:10,044 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 14:42:10,049 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 14:42:10,054 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 14:42:10,059 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 14:42:10,064 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 14:42:10,069 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 14:42:10,074 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 14:42:10,079 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 14:42:10,084 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 14:42:10,089 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 14:42:10,095 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 14:42:10,100 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 14:42:10,105 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 14:42:10,110 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 14:42:10,115 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 14:42:10,120 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 14:42:10,125 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 14:42:10,131 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 14:42:10,136 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 14:42:10,141 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 14:42:10,147 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 14:42:10,152 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 14:42:10,157 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 14:42:10,162 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 14:42:10,168 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 14:42:10,173 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 14:42:10,177 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 14:42:10,182 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 14:42:10,187 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 14:42:10,192 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 14:42:10,198 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 14:42:10,202 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 14:42:10,207 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 14:42:10,212 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 14:42:10,216 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 14:42:10,221 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 14:42:10,227 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 14:42:10,233 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 14:42:10,238 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 14:42:10,244 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 14:42:10,249 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 14:42:10,255 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 14:42:10,260 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 14:42:10,266 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 14:42:10,272 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 14:42:10,277 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 14:42:10,283 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 14:42:10,288 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 14:42:10,294 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 14:42:10,299 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 14:42:10,305 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 14:42:10,310 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 14:42:10,316 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 14:42:10,321 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 14:42:10,327 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 14:42:10,332 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 14:42:10,338 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 14:42:10,344 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 14:42:10,349 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 14:42:10,355 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 14:42:10,360 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 14:42:10,366 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 14:42:10,371 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 14:42:10,377 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 14:42:10,382 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 14:42:10,388 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 14:42:10,393 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 14:42:10,400 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 14:42:10,406 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 14:42:10,411 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 14:42:10,417 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 14:42:10,422 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 14:42:10,428 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 14:42:10,434 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 14:42:10,440 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 14:42:10,445 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 14:42:10,450 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 14:42:10,456 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 14:42:10,461 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 14:42:10,467 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 14:42:10,472 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 14:42:10,478 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 14:42:10,483 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 14:42:10,489 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 14:42:10,494 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 14:42:10,500 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 14:42:10,505 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 14:42:10,511 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 14:42:10,516 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 14:42:10,522 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 14:42:10,527 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 14:42:10,533 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 14:42:10,538 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 14:42:10,544 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 14:42:10,549 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 14:42:10,555 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 14:42:10,560 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 14:42:10,566 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 14:42:10,572 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 14:42:10,577 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 14:42:10,583 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 14:42:10,589 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 14:42:10,594 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 14:42:10,600 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 14:42:10,605 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 14:42:10,611 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 14:42:10,616 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 14:42:10,622 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 14:42:10,628 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 14:42:10,633 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 14:42:10,639 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 14:42:10,644 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 14:42:10,649 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 14:42:10,655 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 14:42:10,661 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 14:42:10,666 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 14:42:10,672 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 14:42:10,677 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 14:42:10,683 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 14:42:10,691 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 14:42:17,278 WARN L169 SmtUtils]: Spent 2.13 s on a formula simplification that was a NOOP. DAG size: 72 Received shutdown request... [2018-07-24 14:42:20,713 INFO L134 CoverageAnalysis]: Checked inductivity of 216 backedges. 105 proven. 111 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-24 14:42:20,715 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 5 imperfect interpolant sequences. [2018-07-24 14:42:20,716 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 6, 6, 9, 10] total 29 [2018-07-24 14:42:20,716 INFO L251 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-07-24 14:42:20,717 INFO L450 AbstractCegarLoop]: Interpolant automaton has 12 states [2018-07-24 14:42:20,717 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2018-07-24 14:42:20,717 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=100, Invalid=707, Unknown=5, NotChecked=0, Total=812 [2018-07-24 14:42:20,718 INFO L87 Difference]: Start difference. First operand 25119 states and 30290 transitions. Second operand 12 states. [2018-07-24 14:42:20,719 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-07-24 14:42:20,719 WARN L540 AbstractCegarLoop]: Verification canceled [2018-07-24 14:42:20,725 WARN L202 ceAbstractionStarter]: Timeout [2018-07-24 14:42:20,725 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.07 02:42:20 BoogieIcfgContainer [2018-07-24 14:42:20,725 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-07-24 14:42:20,726 INFO L168 Benchmark]: Toolchain (without parser) took 246951.34 ms. Allocated memory was 1.5 GB in the beginning and 4.0 GB in the end (delta: 2.4 GB). Free memory was 1.4 GB in the beginning and 1.8 GB in the end (delta: -369.3 MB). Peak memory consumption was 2.1 GB. Max. memory is 7.1 GB. [2018-07-24 14:42:20,727 INFO L168 Benchmark]: CDTParser took 0.25 ms. Allocated memory is still 1.5 GB. Free memory is still 1.4 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-07-24 14:42:20,728 INFO L168 Benchmark]: CACSL2BoogieTranslator took 1367.64 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.3 GB in the end (delta: 116.3 MB). Peak memory consumption was 116.3 MB. Max. memory is 7.1 GB. [2018-07-24 14:42:20,728 INFO L168 Benchmark]: Boogie Procedure Inliner took 240.24 ms. Allocated memory is still 1.5 GB. Free memory was 1.3 GB in the beginning and 1.2 GB in the end (delta: 42.4 MB). Peak memory consumption was 42.4 MB. Max. memory is 7.1 GB. [2018-07-24 14:42:20,729 INFO L168 Benchmark]: Boogie Preprocessor took 668.17 ms. Allocated memory was 1.5 GB in the beginning and 2.4 GB in the end (delta: 881.9 MB). Free memory was 1.2 GB in the beginning and 2.3 GB in the end (delta: -1.1 GB). Peak memory consumption was 106.7 MB. Max. memory is 7.1 GB. [2018-07-24 14:42:20,730 INFO L168 Benchmark]: RCFGBuilder took 8188.69 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: 314.9 MB). Peak memory consumption was 314.9 MB. Max. memory is 7.1 GB. [2018-07-24 14:42:20,731 INFO L168 Benchmark]: TraceAbstraction took 236480.84 ms. Allocated memory was 2.4 GB in the beginning and 4.0 GB in the end (delta: 1.6 GB). Free memory was 2.0 GB in the beginning and 1.8 GB in the end (delta: 216.9 MB). Peak memory consumption was 1.8 GB. Max. memory is 7.1 GB. [2018-07-24 14:42:20,736 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.25 ms. Allocated memory is still 1.5 GB. Free memory is still 1.4 GB. There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 1367.64 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.3 GB in the end (delta: 116.3 MB). Peak memory consumption was 116.3 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 240.24 ms. Allocated memory is still 1.5 GB. Free memory was 1.3 GB in the beginning and 1.2 GB in the end (delta: 42.4 MB). Peak memory consumption was 42.4 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 668.17 ms. Allocated memory was 1.5 GB in the beginning and 2.4 GB in the end (delta: 881.9 MB). Free memory was 1.2 GB in the beginning and 2.3 GB in the end (delta: -1.1 GB). Peak memory consumption was 106.7 MB. Max. memory is 7.1 GB. * RCFGBuilder took 8188.69 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: 314.9 MB). Peak memory consumption was 314.9 MB. Max. memory is 7.1 GB. * TraceAbstraction took 236480.84 ms. Allocated memory was 2.4 GB in the beginning and 4.0 GB in the end (delta: 1.6 GB). Free memory was 2.0 GB in the beginning and 1.8 GB in the end (delta: 216.9 MB). Peak memory consumption was 1.8 GB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResultAtElement [Line: 163]: Timeout (TraceAbstraction) Unable to prove that call of __VERIFIER_error() unreachable (line 163). Cancelled while BasicCegarLoop was constructing difference of abstraction (25119states) and interpolant automaton (currently 2 states, 12 states before enhancement), while ReachableStatesComputation was computing reachable states (1 states constructedinput type IntersectNwa). - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 438 locations, 1 error locations. TIMEOUT Result, 236.4s OverallTime, 11 OverallIterations, 3 TraceHistogramMax, 129.2s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 2650 SDtfs, 22193 SDslu, 2851 SDs, 0 SdLazy, 38131 SolverSat, 6469 SolverUnsat, 4 SolverUnknown, 0 SolverNotchecked, 114.9s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 8571 GetRequests, 8347 SyntacticMatches, 27 SemanticMatches, 197 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1686 ImplicationChecksByTransitivity, 86.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=25119occurred in iteration=10, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s AbstIntTime, 0 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 2.5s AutomataMinimizationTime, 10 MinimizatonAttempts, 9085 StatesRemovedByMinimization, 10 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.3s SsaConstructionTime, 2.5s SatisfiabilityAnalysisTime, 98.7s InterpolantComputationTime, 6992 NumberOfCodeBlocks, 6992 NumberOfCodeBlocksAsserted, 23 NumberOfCheckSat, 11164 ConstructedInterpolants, 342 QuantifiedInterpolants, 49867301 SizeOfPredicates, 42 NumberOfNonLiveVariables, 6305 ConjunctsInSsa, 180 ConjunctsInUnsatCore, 35 InterpolantComputations, 10 PerfectInterpolantSequences, 4468/5953 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_label49_true-unreach-call.c_svcomp-Reach-64bit-RubberTaipan_Default-OldIcfg.epf_AutomizerCInline.xml/Csv-Benchmark-0-2018-07-24_14-42-20-750.csv Written .csv to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/csv/Problem15_label49_true-unreach-call.c_svcomp-Reach-64bit-RubberTaipan_Default-OldIcfg.epf_AutomizerCInline.xml/Csv-TraceAbstractionBenchmarks-0-2018-07-24_14-42-20-750.csv Completed graceful shutdown