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/loop-lit/afnp2014_true-unreach-call_true-termination.c.i -------------------------------------------------------------------------------- This is Ultimate 0.1.23-dd2f093 [2018-07-24 10:54:49,228 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-07-24 10:54:49,230 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-07-24 10:54:49,245 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-07-24 10:54:49,245 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-07-24 10:54:49,246 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-07-24 10:54:49,247 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-07-24 10:54:49,249 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-07-24 10:54:49,251 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-07-24 10:54:49,252 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-07-24 10:54:49,253 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-07-24 10:54:49,253 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-07-24 10:54:49,254 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-07-24 10:54:49,255 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-07-24 10:54:49,256 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-07-24 10:54:49,257 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-07-24 10:54:49,258 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-07-24 10:54:49,260 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-07-24 10:54:49,262 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-07-24 10:54:49,263 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-07-24 10:54:49,264 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-07-24 10:54:49,266 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-07-24 10:54:49,268 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-07-24 10:54:49,268 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-07-24 10:54:49,269 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-07-24 10:54:49,269 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-07-24 10:54:49,271 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-07-24 10:54:49,271 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-07-24 10:54:49,272 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-07-24 10:54:49,273 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-07-24 10:54:49,274 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-07-24 10:54:49,274 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-07-24 10:54:49,275 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-07-24 10:54:49,275 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-07-24 10:54:49,276 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-07-24 10:54:49,276 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-07-24 10:54:49,277 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 10:54:49,303 INFO L110 SettingsManager]: Loading preferences was successful [2018-07-24 10:54:49,304 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-07-24 10:54:49,305 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-07-24 10:54:49,306 INFO L133 SettingsManager]: * User list type=DISABLED [2018-07-24 10:54:49,306 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-07-24 10:54:49,306 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-07-24 10:54:49,306 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-07-24 10:54:49,306 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-07-24 10:54:49,307 INFO L133 SettingsManager]: * Log string format=TERM [2018-07-24 10:54:49,307 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-07-24 10:54:49,307 INFO L133 SettingsManager]: * Interval Domain=false [2018-07-24 10:54:49,308 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-07-24 10:54:49,308 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-07-24 10:54:49,309 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-07-24 10:54:49,309 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-07-24 10:54:49,309 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-07-24 10:54:49,309 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-07-24 10:54:49,309 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-07-24 10:54:49,310 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-07-24 10:54:49,310 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-07-24 10:54:49,310 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-07-24 10:54:49,310 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-07-24 10:54:49,312 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-07-24 10:54:49,312 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-07-24 10:54:49,312 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-07-24 10:54:49,313 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-07-24 10:54:49,313 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-07-24 10:54:49,313 INFO L133 SettingsManager]: * Trace refinement strategy=RUBBER_TAIPAN [2018-07-24 10:54:49,313 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-07-24 10:54:49,313 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-07-24 10:54:49,314 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-07-24 10:54:49,314 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-07-24 10:54:49,314 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-07-24 10:54:49,379 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-07-24 10:54:49,394 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-07-24 10:54:49,400 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-07-24 10:54:49,402 INFO L271 PluginConnector]: Initializing CDTParser... [2018-07-24 10:54:49,402 INFO L276 PluginConnector]: CDTParser initialized [2018-07-24 10:54:49,403 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/loop-lit/afnp2014_true-unreach-call_true-termination.c.i [2018-07-24 10:54:49,752 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5b3a803fb/164b5419ac5f40958ee5fd7b58f3e187/FLAGea06694a5 [2018-07-24 10:54:49,890 INFO L276 CDTParser]: Found 1 translation units. [2018-07-24 10:54:49,890 INFO L158 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/loop-lit/afnp2014_true-unreach-call_true-termination.c.i [2018-07-24 10:54:49,896 INFO L324 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5b3a803fb/164b5419ac5f40958ee5fd7b58f3e187/FLAGea06694a5 [2018-07-24 10:54:49,911 INFO L332 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5b3a803fb/164b5419ac5f40958ee5fd7b58f3e187 [2018-07-24 10:54:49,925 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-07-24 10:54:49,926 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-07-24 10:54:49,928 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-07-24 10:54:49,928 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-07-24 10:54:49,935 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-07-24 10:54:49,936 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.07 10:54:49" (1/1) ... [2018-07-24 10:54:49,939 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@fb4a8d0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.07 10:54:49, skipping insertion in model container [2018-07-24 10:54:49,939 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.07 10:54:49" (1/1) ... [2018-07-24 10:54:50,100 INFO L179 PRDispatcher]: Starting pre-run dispatcher in SV-COMP mode [2018-07-24 10:54:50,134 INFO L175 PostProcessor]: Settings: Checked method=main [2018-07-24 10:54:50,148 INFO L422 MainDispatcher]: Starting main dispatcher in SV-COMP mode [2018-07-24 10:54:50,152 INFO L175 PostProcessor]: Settings: Checked method=main [2018-07-24 10:54:50,165 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.07 10:54:50 WrapperNode [2018-07-24 10:54:50,165 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-07-24 10:54:50,166 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-07-24 10:54:50,166 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-07-24 10:54:50,167 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-07-24 10:54:50,176 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.07 10:54:50" (1/1) ... [2018-07-24 10:54:50,183 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.07 10:54:50" (1/1) ... [2018-07-24 10:54:50,189 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-07-24 10:54:50,189 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-07-24 10:54:50,189 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-07-24 10:54:50,189 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-07-24 10:54:50,199 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.07 10:54:50" (1/1) ... [2018-07-24 10:54:50,200 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.07 10:54:50" (1/1) ... [2018-07-24 10:54:50,200 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.07 10:54:50" (1/1) ... [2018-07-24 10:54:50,201 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.07 10:54:50" (1/1) ... [2018-07-24 10:54:50,202 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.07 10:54:50" (1/1) ... [2018-07-24 10:54:50,207 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.07 10:54:50" (1/1) ... [2018-07-24 10:54:50,208 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.07 10:54:50" (1/1) ... [2018-07-24 10:54:50,210 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-07-24 10:54:50,210 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-07-24 10:54:50,210 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-07-24 10:54:50,211 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-07-24 10:54:50,212 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.07 10:54:50" (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 10:54:50,276 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-07-24 10:54:50,276 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-07-24 10:54:50,276 INFO L130 BoogieDeclarations]: Found specification of procedure __U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_loop_lit_afnp_____true_unreach_call_true_termination_c_i____VERIFIER_assert [2018-07-24 10:54:50,276 INFO L138 BoogieDeclarations]: Found implementation of procedure __U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_loop_lit_afnp_____true_unreach_call_true_termination_c_i____VERIFIER_assert [2018-07-24 10:54:50,276 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-07-24 10:54:50,277 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-07-24 10:54:50,277 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-07-24 10:54:50,277 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-07-24 10:54:50,564 INFO L261 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-07-24 10:54:50,564 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.07 10:54:50 BoogieIcfgContainer [2018-07-24 10:54:50,565 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-07-24 10:54:50,566 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-07-24 10:54:50,566 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-07-24 10:54:50,570 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-07-24 10:54:50,575 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.07 10:54:49" (1/3) ... [2018-07-24 10:54:50,576 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2020486b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.07 10:54:50, skipping insertion in model container [2018-07-24 10:54:50,577 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.07 10:54:50" (2/3) ... [2018-07-24 10:54:50,577 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2020486b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.07 10:54:50, skipping insertion in model container [2018-07-24 10:54:50,577 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.07 10:54:50" (3/3) ... [2018-07-24 10:54:50,584 INFO L112 eAbstractionObserver]: Analyzing ICFG afnp2014_true-unreach-call_true-termination.c.i [2018-07-24 10:54:50,608 INFO L132 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-07-24 10:54:50,628 INFO L144 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-07-24 10:54:50,717 INFO L128 ementStrategyFactory]: Using default assertion order modulation [2018-07-24 10:54:50,718 INFO L373 AbstractCegarLoop]: Interprodecural is true [2018-07-24 10:54:50,718 INFO L374 AbstractCegarLoop]: Hoare is true [2018-07-24 10:54:50,718 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-07-24 10:54:50,718 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-07-24 10:54:50,719 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-07-24 10:54:50,719 INFO L378 AbstractCegarLoop]: Difference is false [2018-07-24 10:54:50,719 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-07-24 10:54:50,719 INFO L384 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-07-24 10:54:50,735 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states. [2018-07-24 10:54:50,741 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2018-07-24 10:54:50,741 INFO L345 BasicCegarLoop]: Found error trace [2018-07-24 10:54:50,742 INFO L353 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-07-24 10:54:50,742 INFO L414 AbstractCegarLoop]: === Iteration 1 === [__U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_loop_lit_afnp_____true_unreach_call_true_termination_c_i____VERIFIER_assertErr0AssertViolationERROR_FUNCTION]=== [2018-07-24 10:54:50,748 INFO L82 PathProgramCache]: Analyzing trace with hash -1683042458, now seen corresponding path program 1 times [2018-07-24 10:54:50,751 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-07-24 10:54:50,805 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 10:54:50,805 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 10:54:50,806 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 10:54:50,806 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-07-24 10:54:50,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 10:54:50,858 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 10:54:50,859 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-24 10:54:50,860 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-07-24 10:54:50,860 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-07-24 10:54:50,864 INFO L450 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-07-24 10:54:50,880 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-07-24 10:54:50,880 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-07-24 10:54:50,883 INFO L87 Difference]: Start difference. First operand 21 states. Second operand 2 states. [2018-07-24 10:54:50,905 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-24 10:54:50,906 INFO L93 Difference]: Finished difference Result 33 states and 37 transitions. [2018-07-24 10:54:50,906 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-07-24 10:54:50,907 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 10 [2018-07-24 10:54:50,908 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-24 10:54:50,917 INFO L225 Difference]: With dead ends: 33 [2018-07-24 10:54:50,917 INFO L226 Difference]: Without dead ends: 14 [2018-07-24 10:54:50,921 INFO L573 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-07-24 10:54:50,935 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14 states. [2018-07-24 10:54:50,952 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14 to 14. [2018-07-24 10:54:50,953 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2018-07-24 10:54:50,954 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 15 transitions. [2018-07-24 10:54:50,956 INFO L78 Accepts]: Start accepts. Automaton has 14 states and 15 transitions. Word has length 10 [2018-07-24 10:54:50,956 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-24 10:54:50,957 INFO L471 AbstractCegarLoop]: Abstraction has 14 states and 15 transitions. [2018-07-24 10:54:50,957 INFO L472 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-07-24 10:54:50,957 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states and 15 transitions. [2018-07-24 10:54:50,958 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2018-07-24 10:54:50,958 INFO L345 BasicCegarLoop]: Found error trace [2018-07-24 10:54:50,958 INFO L353 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-07-24 10:54:50,958 INFO L414 AbstractCegarLoop]: === Iteration 2 === [__U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_loop_lit_afnp_____true_unreach_call_true_termination_c_i____VERIFIER_assertErr0AssertViolationERROR_FUNCTION]=== [2018-07-24 10:54:50,959 INFO L82 PathProgramCache]: Analyzing trace with hash -2103630444, now seen corresponding path program 1 times [2018-07-24 10:54:50,959 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-07-24 10:54:50,960 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 10:54:50,961 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 10:54:50,961 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 10:54:50,961 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-07-24 10:54:50,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 10:54:51,100 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 10:54:51,101 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-24 10:54:51,101 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-07-24 10:54:51,101 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-07-24 10:54:51,103 INFO L450 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-07-24 10:54:51,103 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-07-24 10:54:51,104 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-07-24 10:54:51,104 INFO L87 Difference]: Start difference. First operand 14 states and 15 transitions. Second operand 5 states. [2018-07-24 10:54:51,417 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-24 10:54:51,417 INFO L93 Difference]: Finished difference Result 23 states and 25 transitions. [2018-07-24 10:54:51,420 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-07-24 10:54:51,420 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 13 [2018-07-24 10:54:51,420 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-24 10:54:51,421 INFO L225 Difference]: With dead ends: 23 [2018-07-24 10:54:51,421 INFO L226 Difference]: Without dead ends: 18 [2018-07-24 10:54:51,424 INFO L573 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2018-07-24 10:54:51,424 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18 states. [2018-07-24 10:54:51,428 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18 to 18. [2018-07-24 10:54:51,428 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2018-07-24 10:54:51,429 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 20 transitions. [2018-07-24 10:54:51,429 INFO L78 Accepts]: Start accepts. Automaton has 18 states and 20 transitions. Word has length 13 [2018-07-24 10:54:51,429 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-24 10:54:51,430 INFO L471 AbstractCegarLoop]: Abstraction has 18 states and 20 transitions. [2018-07-24 10:54:51,430 INFO L472 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-07-24 10:54:51,430 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 20 transitions. [2018-07-24 10:54:51,431 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2018-07-24 10:54:51,431 INFO L345 BasicCegarLoop]: Found error trace [2018-07-24 10:54:51,431 INFO L353 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-07-24 10:54:51,431 INFO L414 AbstractCegarLoop]: === Iteration 3 === [__U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_loop_lit_afnp_____true_unreach_call_true_termination_c_i____VERIFIER_assertErr0AssertViolationERROR_FUNCTION]=== [2018-07-24 10:54:51,432 INFO L82 PathProgramCache]: Analyzing trace with hash -1365756290, now seen corresponding path program 1 times [2018-07-24 10:54:51,432 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-07-24 10:54:51,433 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 10:54:51,433 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 10:54:51,433 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 10:54:51,434 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-07-24 10:54:51,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 10:54:51,607 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-24 10:54:51,607 INFO L297 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-07-24 10:54:51,607 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 10:54:51,621 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 10:54:51,621 INFO L288 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-07-24 10:54:51,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 10:54:51,652 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-07-24 10:54:51,696 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-24 10:54:51,696 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-07-24 10:54:51,970 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-24 10:54:52,007 INFO L297 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-07-24 10:54:52,007 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 3 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 3 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk --tlimit-per=12000 [2018-07-24 10:54:52,040 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 10:54:52,040 INFO L288 anRefinementStrategy]: Using traceCheck mode CVC4_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-07-24 10:54:52,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 10:54:52,071 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-07-24 10:54:52,138 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-24 10:54:52,138 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-07-24 10:54:52,169 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-24 10:54:52,172 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 5 imperfect interpolant sequences. [2018-07-24 10:54:52,172 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6, 6, 6] total 8 [2018-07-24 10:54:52,172 INFO L251 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-07-24 10:54:52,173 INFO L450 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-07-24 10:54:52,173 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-07-24 10:54:52,173 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2018-07-24 10:54:52,174 INFO L87 Difference]: Start difference. First operand 18 states and 20 transitions. Second operand 6 states. [2018-07-24 10:54:52,305 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-24 10:54:52,306 INFO L93 Difference]: Finished difference Result 27 states and 30 transitions. [2018-07-24 10:54:52,306 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-07-24 10:54:52,306 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 17 [2018-07-24 10:54:52,307 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-24 10:54:52,307 INFO L225 Difference]: With dead ends: 27 [2018-07-24 10:54:52,307 INFO L226 Difference]: Without dead ends: 22 [2018-07-24 10:54:52,308 INFO L573 BasicCegarLoop]: 0 DeclaredPredicates, 74 GetRequests, 62 SyntacticMatches, 4 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2018-07-24 10:54:52,309 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22 states. [2018-07-24 10:54:52,312 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22 to 22. [2018-07-24 10:54:52,313 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 22 states. [2018-07-24 10:54:52,314 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 25 transitions. [2018-07-24 10:54:52,314 INFO L78 Accepts]: Start accepts. Automaton has 22 states and 25 transitions. Word has length 17 [2018-07-24 10:54:52,314 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-24 10:54:52,314 INFO L471 AbstractCegarLoop]: Abstraction has 22 states and 25 transitions. [2018-07-24 10:54:52,315 INFO L472 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-07-24 10:54:52,315 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 25 transitions. [2018-07-24 10:54:52,315 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2018-07-24 10:54:52,316 INFO L345 BasicCegarLoop]: Found error trace [2018-07-24 10:54:52,316 INFO L353 BasicCegarLoop]: trace histogram [3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-07-24 10:54:52,316 INFO L414 AbstractCegarLoop]: === Iteration 4 === [__U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_loop_lit_afnp_____true_unreach_call_true_termination_c_i____VERIFIER_assertErr0AssertViolationERROR_FUNCTION]=== [2018-07-24 10:54:52,316 INFO L82 PathProgramCache]: Analyzing trace with hash 1399636584, now seen corresponding path program 2 times [2018-07-24 10:54:52,316 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-07-24 10:54:52,317 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 10:54:52,318 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 10:54:52,318 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 10:54:52,318 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-07-24 10:54:52,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 10:54:52,436 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-24 10:54:52,436 INFO L297 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-07-24 10:54:52,436 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 10:54:52,447 INFO L103 rtionOrderModulation]: Keeping assertion order OUTSIDE_LOOP_FIRST1 [2018-07-24 10:54:52,447 INFO L288 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder OUTSIDE_LOOP_FIRST1 (IT: FPandBP) [2018-07-24 10:54:52,484 INFO L242 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2018-07-24 10:54:52,484 INFO L243 tOrderPrioritization]: Conjunction of SSA is unsat [2018-07-24 10:54:52,486 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-07-24 10:54:52,677 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-24 10:54:52,678 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-07-24 10:54:52,767 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-24 10:54:52,788 INFO L297 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-07-24 10:54:52,789 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 10:54:52,808 INFO L103 rtionOrderModulation]: Keeping assertion order OUTSIDE_LOOP_FIRST1 [2018-07-24 10:54:52,808 INFO L288 anRefinementStrategy]: Using traceCheck mode CVC4_IG with AssertCodeBlockOrder OUTSIDE_LOOP_FIRST1 (IT: FPandBP) [2018-07-24 10:54:52,831 INFO L242 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2018-07-24 10:54:52,832 INFO L243 tOrderPrioritization]: Conjunction of SSA is unsat [2018-07-24 10:54:52,836 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-07-24 10:54:52,867 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-24 10:54:52,867 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-07-24 10:54:52,908 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-24 10:54:52,911 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 5 imperfect interpolant sequences. [2018-07-24 10:54:52,911 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7, 7, 7, 7] total 10 [2018-07-24 10:54:52,911 INFO L251 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-07-24 10:54:52,911 INFO L450 AbstractCegarLoop]: Interpolant automaton has 8 states [2018-07-24 10:54:52,912 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2018-07-24 10:54:52,912 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2018-07-24 10:54:52,913 INFO L87 Difference]: Start difference. First operand 22 states and 25 transitions. Second operand 8 states. [2018-07-24 10:54:52,964 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-24 10:54:52,965 INFO L93 Difference]: Finished difference Result 22 states and 25 transitions. [2018-07-24 10:54:52,965 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-07-24 10:54:52,965 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 21 [2018-07-24 10:54:52,966 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-24 10:54:52,966 INFO L225 Difference]: With dead ends: 22 [2018-07-24 10:54:52,966 INFO L226 Difference]: Without dead ends: 0 [2018-07-24 10:54:52,967 INFO L573 BasicCegarLoop]: 0 DeclaredPredicates, 91 GetRequests, 75 SyntacticMatches, 6 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=33, Invalid=99, Unknown=0, NotChecked=0, Total=132 [2018-07-24 10:54:52,968 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-07-24 10:54:52,968 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-07-24 10:54:52,968 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-07-24 10:54:52,968 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-07-24 10:54:52,968 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 21 [2018-07-24 10:54:52,969 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-24 10:54:52,969 INFO L471 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-07-24 10:54:52,969 INFO L472 AbstractCegarLoop]: Interpolant automaton has 8 states. [2018-07-24 10:54:52,969 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-07-24 10:54:52,969 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-07-24 10:54:52,973 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2018-07-24 10:54:53,012 INFO L421 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2018-07-24 10:54:53,013 INFO L424 ceAbstractionStarter]: At program point ULTIMATE.initFINAL(line -1) the Hoare annotation is: true [2018-07-24 10:54:53,013 INFO L421 ceAbstractionStarter]: For program point __U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_loop_lit_afnp_____true_unreach_call_true_termination_c_i____VERIFIER_assertErr0AssertViolationERROR_FUNCTION(line 5) no Hoare annotation was computed. [2018-07-24 10:54:53,013 INFO L421 ceAbstractionStarter]: For program point __U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_loop_lit_afnp_____true_unreach_call_true_termination_c_i____VERIFIER_assertEXIT(lines 3 8) no Hoare annotation was computed. [2018-07-24 10:54:53,013 INFO L421 ceAbstractionStarter]: For program point L4(lines 4 6) no Hoare annotation was computed. [2018-07-24 10:54:53,014 INFO L421 ceAbstractionStarter]: For program point L5(line 5) no Hoare annotation was computed. [2018-07-24 10:54:53,014 INFO L421 ceAbstractionStarter]: For program point L4''(lines 3 8) no Hoare annotation was computed. [2018-07-24 10:54:53,014 INFO L424 ceAbstractionStarter]: At program point __U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_loop_lit_afnp_____true_unreach_call_true_termination_c_i____VERIFIER_assertENTRY(lines 3 8) the Hoare annotation is: true [2018-07-24 10:54:53,014 INFO L424 ceAbstractionStarter]: At program point L-1(line -1) the Hoare annotation is: true [2018-07-24 10:54:53,014 INFO L424 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2018-07-24 10:54:53,015 INFO L421 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2018-07-24 10:54:53,015 INFO L421 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2018-07-24 10:54:53,015 INFO L421 ceAbstractionStarter]: For program point L13'''(lines 13 16) no Hoare annotation was computed. [2018-07-24 10:54:53,015 INFO L417 ceAbstractionStarter]: At program point L13''''''(lines 13 16) the Hoare annotation is: (<= main_~y~0 main_~x~0) [2018-07-24 10:54:53,015 INFO L421 ceAbstractionStarter]: For program point mainFINAL(lines 10 19) no Hoare annotation was computed. [2018-07-24 10:54:53,015 INFO L421 ceAbstractionStarter]: For program point L13(lines 13 16) no Hoare annotation was computed. [2018-07-24 10:54:53,015 INFO L421 ceAbstractionStarter]: For program point mainEXIT(lines 10 19) no Hoare annotation was computed. [2018-07-24 10:54:53,015 INFO L424 ceAbstractionStarter]: At program point mainENTRY(lines 10 19) the Hoare annotation is: true [2018-07-24 10:54:53,016 INFO L417 ceAbstractionStarter]: At program point L13'''''(lines 13 16) the Hoare annotation is: (and (<= main_~y~0 main_~x~0) (<= 0 main_~y~0) (<= 1 main_~x~0)) [2018-07-24 10:54:53,016 INFO L421 ceAbstractionStarter]: For program point L17(line 17) no Hoare annotation was computed. [2018-07-24 10:54:53,016 INFO L421 ceAbstractionStarter]: For program point L13'(line 13) no Hoare annotation was computed. [2018-07-24 10:54:53,025 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.07 10:54:53 BoogieIcfgContainer [2018-07-24 10:54:53,026 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-07-24 10:54:53,026 INFO L168 Benchmark]: Toolchain (without parser) took 3101.17 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 737.1 MB). Free memory was 1.4 GB in the beginning and 2.1 GB in the end (delta: -641.8 MB). Peak memory consumption was 95.3 MB. Max. memory is 7.1 GB. [2018-07-24 10:54:53,028 INFO L168 Benchmark]: CDTParser took 0.26 ms. Allocated memory is still 1.5 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-07-24 10:54:53,029 INFO L168 Benchmark]: CACSL2BoogieTranslator took 238.04 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.4 GB in the end (delta: 10.6 MB). Peak memory consumption was 10.6 MB. Max. memory is 7.1 GB. [2018-07-24 10:54:53,030 INFO L168 Benchmark]: Boogie Procedure Inliner took 22.62 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 10:54:53,030 INFO L168 Benchmark]: Boogie Preprocessor took 20.88 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 10:54:53,031 INFO L168 Benchmark]: RCFGBuilder took 354.40 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 737.1 MB). Free memory was 1.4 GB in the beginning and 2.2 GB in the end (delta: -782.3 MB). Peak memory consumption was 26.9 MB. Max. memory is 7.1 GB. [2018-07-24 10:54:53,032 INFO L168 Benchmark]: TraceAbstraction took 2460.06 ms. Allocated memory is still 2.3 GB. Free memory was 2.2 GB in the beginning and 2.1 GB in the end (delta: 130.0 MB). Peak memory consumption was 130.0 MB. Max. memory is 7.1 GB. [2018-07-24 10:54:53,037 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.26 ms. Allocated memory is still 1.5 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 238.04 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.4 GB in the end (delta: 10.6 MB). Peak memory consumption was 10.6 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 22.62 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. * Boogie Preprocessor took 20.88 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. * RCFGBuilder took 354.40 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 737.1 MB). Free memory was 1.4 GB in the beginning and 2.2 GB in the end (delta: -782.3 MB). Peak memory consumption was 26.9 MB. Max. memory is 7.1 GB. * TraceAbstraction took 2460.06 ms. Allocated memory is still 2.3 GB. Free memory was 2.2 GB in the beginning and 2.1 GB in the end (delta: 130.0 MB). Peak memory consumption was 130.0 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 5]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 13]: Loop Invariant Derived loop invariant: (y <= x && 0 <= y) && 1 <= x - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 21 locations, 1 error locations. SAFE Result, 2.3s OverallTime, 4 OverallIterations, 3 TraceHistogramMax, 0.5s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 56 SDtfs, 14 SDslu, 111 SDs, 0 SdLazy, 41 SolverSat, 5 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 173 GetRequests, 141 SyntacticMatches, 10 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 1.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=22occurred in iteration=3, 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: 0.0s AutomataMinimizationTime, 4 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 7 LocationsWithAnnotation, 10 PreInvPairs, 14 NumberOfFragments, 18 HoareAnnotationTreeSize, 10 FomulaSimplifications, 26 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 7 FomulaSimplificationsInter, 6 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 1.1s InterpolantComputationTime, 137 NumberOfCodeBlocks, 137 NumberOfCodeBlocksAsserted, 10 NumberOfCheckSat, 201 ConstructedInterpolants, 0 QuantifiedInterpolants, 9817 SizeOfPredicates, 12 NumberOfNonLiveVariables, 186 ConjunctsInSsa, 40 ConjunctsInUnsatCore, 12 InterpolantComputations, 2 PerfectInterpolantSequences, 0/80 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Written .csv to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/csv/afnp2014_true-unreach-call_true-termination.c.i_svcomp-Reach-64bit-RubberTaipan_Default-OldIcfg.epf_AutomizerCInline.xml/Csv-Benchmark-0-2018-07-24_10-54-53-052.csv Written .csv to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/csv/afnp2014_true-unreach-call_true-termination.c.i_svcomp-Reach-64bit-RubberTaipan_Default-OldIcfg.epf_AutomizerCInline.xml/Csv-TraceAbstractionBenchmarks-0-2018-07-24_10-54-53-052.csv Received shutdown request...