java -Xmx8000000000 -jar /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -s ../../../trunk/examples/settings/default/taipan/svcomp-Reach-64bit-Taipan_Default.epf -i ../../../trunk/examples/svcomp/loops/array_true-unreach-call_true-termination.i -------------------------------------------------------------------------------- This is Ultimate 0.1.23-d380424 [2018-10-24 12:05:14,079 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-10-24 12:05:14,081 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-10-24 12:05:14,099 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-10-24 12:05:14,100 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-10-24 12:05:14,101 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-10-24 12:05:14,102 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-10-24 12:05:14,104 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-10-24 12:05:14,106 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-10-24 12:05:14,107 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-10-24 12:05:14,108 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-10-24 12:05:14,108 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-10-24 12:05:14,109 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-10-24 12:05:14,110 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-10-24 12:05:14,111 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-10-24 12:05:14,112 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-10-24 12:05:14,112 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-10-24 12:05:14,114 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-10-24 12:05:14,116 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-10-24 12:05:14,118 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-10-24 12:05:14,119 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-10-24 12:05:14,121 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-10-24 12:05:14,123 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-10-24 12:05:14,124 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-10-24 12:05:14,124 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-10-24 12:05:14,125 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-10-24 12:05:14,126 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-10-24 12:05:14,127 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-10-24 12:05:14,127 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-10-24 12:05:14,129 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-10-24 12:05:14,129 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-10-24 12:05:14,130 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-10-24 12:05:14,130 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-10-24 12:05:14,130 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-10-24 12:05:14,134 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-10-24 12:05:14,135 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-10-24 12:05:14,135 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/../../../trunk/examples/settings/default/taipan/svcomp-Reach-64bit-Taipan_Default.epf [2018-10-24 12:05:14,161 INFO L110 SettingsManager]: Loading preferences was successful [2018-10-24 12:05:14,162 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-10-24 12:05:14,163 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-10-24 12:05:14,164 INFO L133 SettingsManager]: * User list type=DISABLED [2018-10-24 12:05:14,164 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-10-24 12:05:14,164 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-10-24 12:05:14,164 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-10-24 12:05:14,164 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-10-24 12:05:14,165 INFO L133 SettingsManager]: * Log string format=TERM [2018-10-24 12:05:14,165 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-10-24 12:05:14,165 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-10-24 12:05:14,165 INFO L133 SettingsManager]: * Interval Domain=false [2018-10-24 12:05:14,166 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-10-24 12:05:14,166 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-10-24 12:05:14,166 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-10-24 12:05:14,166 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-10-24 12:05:14,167 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-10-24 12:05:14,167 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-10-24 12:05:14,167 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-10-24 12:05:14,167 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-10-24 12:05:14,167 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-10-24 12:05:14,169 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-10-24 12:05:14,169 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-10-24 12:05:14,169 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-10-24 12:05:14,169 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-10-24 12:05:14,169 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-10-24 12:05:14,170 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-10-24 12:05:14,170 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-10-24 12:05:14,170 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-10-24 12:05:14,170 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-10-24 12:05:14,170 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-10-24 12:05:14,171 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-10-24 12:05:14,171 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-10-24 12:05:14,171 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-10-24 12:05:14,227 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-10-24 12:05:14,243 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-10-24 12:05:14,246 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-10-24 12:05:14,248 INFO L271 PluginConnector]: Initializing CDTParser... [2018-10-24 12:05:14,248 INFO L276 PluginConnector]: CDTParser initialized [2018-10-24 12:05:14,249 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/../../../trunk/examples/svcomp/loops/array_true-unreach-call_true-termination.i [2018-10-24 12:05:14,304 INFO L218 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/eb2520b13/8141a2810ed340028e5d34d3bf4d7c0e/FLAGe3c909cf3 [2018-10-24 12:05:14,766 INFO L298 CDTParser]: Found 1 translation units. [2018-10-24 12:05:14,767 INFO L158 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/loops/array_true-unreach-call_true-termination.i [2018-10-24 12:05:14,776 INFO L346 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/eb2520b13/8141a2810ed340028e5d34d3bf4d7c0e/FLAGe3c909cf3 [2018-10-24 12:05:14,802 INFO L354 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/eb2520b13/8141a2810ed340028e5d34d3bf4d7c0e [2018-10-24 12:05:14,814 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-10-24 12:05:14,815 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-10-24 12:05:14,816 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-10-24 12:05:14,817 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-10-24 12:05:14,821 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-10-24 12:05:14,822 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 12:05:14" (1/1) ... [2018-10-24 12:05:14,825 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1c15c04 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 12:05:14, skipping insertion in model container [2018-10-24 12:05:14,826 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 12:05:14" (1/1) ... [2018-10-24 12:05:14,836 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-10-24 12:05:14,865 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-10-24 12:05:15,037 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-24 12:05:15,042 INFO L189 MainTranslator]: Completed pre-run [2018-10-24 12:05:15,065 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-24 12:05:15,087 INFO L193 MainTranslator]: Completed translation [2018-10-24 12:05:15,088 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 12:05:15 WrapperNode [2018-10-24 12:05:15,088 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-10-24 12:05:15,089 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-10-24 12:05:15,089 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-10-24 12:05:15,089 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-10-24 12:05:15,100 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 12:05:15" (1/1) ... [2018-10-24 12:05:15,110 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 12:05:15" (1/1) ... [2018-10-24 12:05:15,135 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-10-24 12:05:15,137 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-10-24 12:05:15,137 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-10-24 12:05:15,137 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-10-24 12:05:15,148 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 12:05:15" (1/1) ... [2018-10-24 12:05:15,148 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 12:05:15" (1/1) ... [2018-10-24 12:05:15,150 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 12:05:15" (1/1) ... [2018-10-24 12:05:15,150 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 12:05:15" (1/1) ... [2018-10-24 12:05:15,161 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 12:05:15" (1/1) ... [2018-10-24 12:05:15,167 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 12:05:15" (1/1) ... [2018-10-24 12:05:15,168 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 12:05:15" (1/1) ... [2018-10-24 12:05:15,177 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-10-24 12:05:15,178 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-10-24 12:05:15,178 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-10-24 12:05:15,178 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-10-24 12:05:15,182 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 12:05:15" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UTaipan-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 [2018-10-24 12:05:15,349 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-10-24 12:05:15,349 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-10-24 12:05:15,349 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-10-24 12:05:15,350 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-10-24 12:05:15,350 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-10-24 12:05:15,350 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-10-24 12:05:15,350 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2018-10-24 12:05:15,350 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2018-10-24 12:05:15,708 INFO L341 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-10-24 12:05:15,709 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 12:05:15 BoogieIcfgContainer [2018-10-24 12:05:15,709 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-10-24 12:05:15,710 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-10-24 12:05:15,710 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-10-24 12:05:15,713 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-10-24 12:05:15,714 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.10 12:05:14" (1/3) ... [2018-10-24 12:05:15,714 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@ba199be and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 12:05:15, skipping insertion in model container [2018-10-24 12:05:15,715 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 12:05:15" (2/3) ... [2018-10-24 12:05:15,715 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@ba199be and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 12:05:15, skipping insertion in model container [2018-10-24 12:05:15,715 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 12:05:15" (3/3) ... [2018-10-24 12:05:15,717 INFO L112 eAbstractionObserver]: Analyzing ICFG array_true-unreach-call_true-termination.i [2018-10-24 12:05:15,727 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-10-24 12:05:15,736 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-10-24 12:05:15,764 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-10-24 12:05:15,799 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-10-24 12:05:15,799 INFO L383 AbstractCegarLoop]: Hoare is true [2018-10-24 12:05:15,799 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-10-24 12:05:15,800 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-10-24 12:05:15,800 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-10-24 12:05:15,800 INFO L387 AbstractCegarLoop]: Difference is false [2018-10-24 12:05:15,800 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-10-24 12:05:15,800 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-10-24 12:05:15,823 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states. [2018-10-24 12:05:15,830 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2018-10-24 12:05:15,830 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 12:05:15,833 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-24 12:05:15,838 INFO L424 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 12:05:15,844 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 12:05:15,844 INFO L82 PathProgramCache]: Analyzing trace with hash 296275345, now seen corresponding path program 1 times [2018-10-24 12:05:15,847 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-24 12:05:15,897 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 12:05:15,897 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 12:05:15,897 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 12:05:15,898 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-24 12:05:15,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 12:05:16,016 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-24 12:05:16,018 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-24 12:05:16,019 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-10-24 12:05:16,019 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-24 12:05:16,024 INFO L460 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-10-24 12:05:16,039 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-10-24 12:05:16,040 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-10-24 12:05:16,043 INFO L87 Difference]: Start difference. First operand 23 states. Second operand 2 states. [2018-10-24 12:05:16,073 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 12:05:16,073 INFO L93 Difference]: Finished difference Result 36 states and 40 transitions. [2018-10-24 12:05:16,074 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-10-24 12:05:16,075 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 12 [2018-10-24 12:05:16,076 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 12:05:16,084 INFO L225 Difference]: With dead ends: 36 [2018-10-24 12:05:16,085 INFO L226 Difference]: Without dead ends: 16 [2018-10-24 12:05:16,088 INFO L605 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 [2018-10-24 12:05:16,108 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16 states. [2018-10-24 12:05:16,125 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16 to 16. [2018-10-24 12:05:16,126 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2018-10-24 12:05:16,127 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 17 transitions. [2018-10-24 12:05:16,129 INFO L78 Accepts]: Start accepts. Automaton has 16 states and 17 transitions. Word has length 12 [2018-10-24 12:05:16,129 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 12:05:16,129 INFO L481 AbstractCegarLoop]: Abstraction has 16 states and 17 transitions. [2018-10-24 12:05:16,130 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-10-24 12:05:16,130 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 17 transitions. [2018-10-24 12:05:16,130 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2018-10-24 12:05:16,132 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 12:05:16,132 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-24 12:05:16,132 INFO L424 AbstractCegarLoop]: === Iteration 2 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 12:05:16,133 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 12:05:16,133 INFO L82 PathProgramCache]: Analyzing trace with hash 665169549, now seen corresponding path program 1 times [2018-10-24 12:05:16,133 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-24 12:05:16,134 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 12:05:16,135 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 12:05:16,135 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 12:05:16,135 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-24 12:05:16,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 12:05:16,313 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-24 12:05:16,314 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-24 12:05:16,314 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-10-24 12:05:16,315 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-24 12:05:16,316 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-10-24 12:05:16,317 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-10-24 12:05:16,317 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-10-24 12:05:16,318 INFO L87 Difference]: Start difference. First operand 16 states and 17 transitions. Second operand 3 states. [2018-10-24 12:05:16,400 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 12:05:16,401 INFO L93 Difference]: Finished difference Result 26 states and 28 transitions. [2018-10-24 12:05:16,401 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-10-24 12:05:16,402 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 13 [2018-10-24 12:05:16,402 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 12:05:16,403 INFO L225 Difference]: With dead ends: 26 [2018-10-24 12:05:16,403 INFO L226 Difference]: Without dead ends: 20 [2018-10-24 12:05:16,404 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-10-24 12:05:16,404 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20 states. [2018-10-24 12:05:16,408 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20 to 18. [2018-10-24 12:05:16,408 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2018-10-24 12:05:16,409 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 19 transitions. [2018-10-24 12:05:16,409 INFO L78 Accepts]: Start accepts. Automaton has 18 states and 19 transitions. Word has length 13 [2018-10-24 12:05:16,410 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 12:05:16,410 INFO L481 AbstractCegarLoop]: Abstraction has 18 states and 19 transitions. [2018-10-24 12:05:16,410 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-10-24 12:05:16,410 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 19 transitions. [2018-10-24 12:05:16,411 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2018-10-24 12:05:16,411 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 12:05:16,411 INFO L375 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-24 12:05:16,412 INFO L424 AbstractCegarLoop]: === Iteration 3 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 12:05:16,413 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 12:05:16,413 INFO L82 PathProgramCache]: Analyzing trace with hash 361632356, now seen corresponding path program 1 times [2018-10-24 12:05:16,414 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-24 12:05:16,415 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 12:05:16,415 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 12:05:16,415 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 12:05:16,415 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-24 12:05:16,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 12:05:16,849 WARN L179 SmtUtils]: Spent 160.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 12 [2018-10-24 12:05:17,177 WARN L179 SmtUtils]: Spent 245.00 ms on a formula simplification. DAG size of input: 46 DAG size of output: 12 [2018-10-24 12:05:17,410 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-24 12:05:17,411 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-24 12:05:17,411 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-10-24 12:05:17,412 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 18 with the following transitions: [2018-10-24 12:05:17,414 INFO L202 CegarAbsIntRunner]: [0], [1], [5], [9], [12], [14], [17], [21], [25], [29], [32], [34], [40], [41], [42], [44] [2018-10-24 12:05:17,467 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-10-24 12:05:17,467 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-10-24 12:05:17,603 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-10-24 12:05:17,974 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-10-24 12:05:17,975 INFO L272 AbstractInterpreter]: Visited 16 different actions 19 times. Merged at 2 different actions 2 times. Never widened. Found 1 fixpoints after 1 different actions. Largest state had 36 variables. [2018-10-24 12:05:17,988 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 12:05:17,989 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2018-10-24 12:05:17,989 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-24 12:05:17,990 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UTaipan-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 [2018-10-24 12:05:18,005 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 12:05:18,005 INFO L288 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-10-24 12:05:18,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 12:05:18,063 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-10-24 12:05:18,366 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 17 [2018-10-24 12:05:18,373 INFO L682 Elim1Store]: detected equality via solver [2018-10-24 12:05:18,375 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 16 [2018-10-24 12:05:18,378 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-10-24 12:05:18,385 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-10-24 12:05:18,399 INFO L267 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-10-24 12:05:18,400 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 4 variables, input treesize:26, output treesize:3 [2018-10-24 12:05:18,434 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-24 12:05:18,434 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-10-24 12:05:18,670 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 15 [2018-10-24 12:05:18,695 INFO L682 Elim1Store]: detected equality via solver [2018-10-24 12:05:18,697 INFO L682 Elim1Store]: detected equality via solver [2018-10-24 12:05:18,698 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 18 [2018-10-24 12:05:18,699 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-10-24 12:05:18,707 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-10-24 12:05:18,710 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-10-24 12:05:18,710 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 1 variables, input treesize:19, output treesize:9 [2018-10-24 12:05:18,910 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-24 12:05:18,951 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2018-10-24 12:05:18,951 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 8, 8] total 16 [2018-10-24 12:05:18,951 INFO L251 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-10-24 12:05:18,952 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2018-10-24 12:05:18,953 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2018-10-24 12:05:18,954 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=196, Unknown=0, NotChecked=0, Total=240 [2018-10-24 12:05:18,954 INFO L87 Difference]: Start difference. First operand 18 states and 19 transitions. Second operand 12 states. [2018-10-24 12:05:19,721 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 12:05:19,722 INFO L93 Difference]: Finished difference Result 33 states and 36 transitions. [2018-10-24 12:05:19,722 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2018-10-24 12:05:19,723 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 17 [2018-10-24 12:05:19,723 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 12:05:19,724 INFO L225 Difference]: With dead ends: 33 [2018-10-24 12:05:19,724 INFO L226 Difference]: Without dead ends: 25 [2018-10-24 12:05:19,726 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 26 SyntacticMatches, 2 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 1 DeprecatedPredicates, 120 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=128, Invalid=522, Unknown=0, NotChecked=0, Total=650 [2018-10-24 12:05:19,726 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25 states. [2018-10-24 12:05:19,730 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25 to 22. [2018-10-24 12:05:19,731 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 22 states. [2018-10-24 12:05:19,732 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 24 transitions. [2018-10-24 12:05:19,732 INFO L78 Accepts]: Start accepts. Automaton has 22 states and 24 transitions. Word has length 17 [2018-10-24 12:05:19,732 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 12:05:19,732 INFO L481 AbstractCegarLoop]: Abstraction has 22 states and 24 transitions. [2018-10-24 12:05:19,732 INFO L482 AbstractCegarLoop]: Interpolant automaton has 12 states. [2018-10-24 12:05:19,733 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 24 transitions. [2018-10-24 12:05:19,733 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2018-10-24 12:05:19,733 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 12:05:19,734 INFO L375 BasicCegarLoop]: trace histogram [3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-24 12:05:19,734 INFO L424 AbstractCegarLoop]: === Iteration 4 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 12:05:19,734 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 12:05:19,734 INFO L82 PathProgramCache]: Analyzing trace with hash 1995149501, now seen corresponding path program 1 times [2018-10-24 12:05:19,734 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-24 12:05:19,735 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 12:05:19,735 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 12:05:19,736 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 12:05:19,736 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-24 12:05:19,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 12:05:19,914 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-24 12:05:19,915 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-24 12:05:19,915 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-10-24 12:05:19,915 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-24 12:05:19,915 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-10-24 12:05:19,916 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-10-24 12:05:19,916 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2018-10-24 12:05:19,916 INFO L87 Difference]: Start difference. First operand 22 states and 24 transitions. Second operand 5 states. [2018-10-24 12:05:19,972 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 12:05:19,972 INFO L93 Difference]: Finished difference Result 25 states and 27 transitions. [2018-10-24 12:05:19,974 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-10-24 12:05:19,974 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 21 [2018-10-24 12:05:19,975 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 12:05:19,975 INFO L225 Difference]: With dead ends: 25 [2018-10-24 12:05:19,975 INFO L226 Difference]: Without dead ends: 0 [2018-10-24 12:05:19,976 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2018-10-24 12:05:19,977 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-10-24 12:05:19,977 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-10-24 12:05:19,977 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-10-24 12:05:19,977 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-10-24 12:05:19,977 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 21 [2018-10-24 12:05:19,977 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 12:05:19,978 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-10-24 12:05:19,978 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-10-24 12:05:19,978 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-10-24 12:05:19,978 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-10-24 12:05:19,982 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2018-10-24 12:05:20,186 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2018-10-24 12:05:20,187 INFO L428 ceAbstractionStarter]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: true [2018-10-24 12:05:20,187 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2018-10-24 12:05:20,187 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2018-10-24 12:05:20,187 INFO L428 ceAbstractionStarter]: At program point L-1(line -1) the Hoare annotation is: true [2018-10-24 12:05:20,187 INFO L428 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2018-10-24 12:05:20,188 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2018-10-24 12:05:20,188 INFO L428 ceAbstractionStarter]: At program point mainENTRY(lines 11 29) the Hoare annotation is: true [2018-10-24 12:05:20,188 INFO L421 ceAbstractionStarter]: At program point L26(line 26) the Hoare annotation is: (and (exists ((main_~j~0 Int)) (let ((.cse0 (mod main_~j~0 4294967296))) (and (<= main_~menor~0 (select (select |#memory_int| |main_~#array~0.base|) (+ (* 4 .cse0) |main_~#array~0.offset|))) (< .cse0 1)))) (= main_~SIZE~0 1) (<= main_~menor~0 |main_#t~mem5|)) [2018-10-24 12:05:20,188 INFO L425 ceAbstractionStarter]: For program point L26-1(line 26) no Hoare annotation was computed. [2018-10-24 12:05:20,189 INFO L425 ceAbstractionStarter]: For program point mainEXIT(lines 11 29) no Hoare annotation was computed. [2018-10-24 12:05:20,189 INFO L425 ceAbstractionStarter]: For program point L22(lines 22 23) no Hoare annotation was computed. [2018-10-24 12:05:20,189 INFO L425 ceAbstractionStarter]: For program point L19-1(lines 19 24) no Hoare annotation was computed. [2018-10-24 12:05:20,189 INFO L425 ceAbstractionStarter]: For program point L19-3(lines 19 24) no Hoare annotation was computed. [2018-10-24 12:05:20,189 INFO L421 ceAbstractionStarter]: At program point L19-4(lines 19 24) the Hoare annotation is: (let ((.cse0 (= main_~SIZE~0 1))) (or (and .cse0 (= 0 |main_~#array~0.offset|) (= main_~j~0 0)) (and (and (exists ((main_~j~0 Int)) (let ((.cse1 (mod main_~j~0 4294967296))) (and (<= main_~menor~0 (select (select |#memory_int| |main_~#array~0.base|) (+ (* 4 .cse1) |main_~#array~0.offset|))) (< .cse1 1)))) .cse0) (<= (+ (* 4294967296 (div (+ (* 4294967296 (div main_~j~0 4294967296)) (+ (* (- 4294967296) (div main_~SIZE~0 4294967296)) main_~SIZE~0)) 4294967296)) 1) main_~j~0)))) [2018-10-24 12:05:20,189 INFO L425 ceAbstractionStarter]: For program point L19-5(lines 19 24) no Hoare annotation was computed. [2018-10-24 12:05:20,189 INFO L425 ceAbstractionStarter]: For program point mainFINAL(lines 11 29) no Hoare annotation was computed. [2018-10-24 12:05:20,190 INFO L428 ceAbstractionStarter]: At program point __VERIFIER_assertENTRY(lines 3 8) the Hoare annotation is: true [2018-10-24 12:05:20,190 INFO L425 ceAbstractionStarter]: For program point __VERIFIER_assertEXIT(lines 3 8) no Hoare annotation was computed. [2018-10-24 12:05:20,190 INFO L425 ceAbstractionStarter]: For program point L5(line 5) no Hoare annotation was computed. [2018-10-24 12:05:20,190 INFO L425 ceAbstractionStarter]: For program point L4(lines 4 6) no Hoare annotation was computed. [2018-10-24 12:05:20,190 INFO L425 ceAbstractionStarter]: For program point __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION(line 5) no Hoare annotation was computed. [2018-10-24 12:05:20,190 INFO L425 ceAbstractionStarter]: For program point L4-2(lines 3 8) no Hoare annotation was computed. [2018-10-24 12:05:20,197 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[main_~j~0,QUANTIFIED] [2018-10-24 12:05:20,198 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[main_~j~0,QUANTIFIED] [2018-10-24 12:05:20,200 WARN L1239 BoogieBacktranslator]: unknown boogie variable #memory_int [2018-10-24 12:05:20,206 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[main_~j~0,QUANTIFIED] [2018-10-24 12:05:20,207 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[main_~j~0,QUANTIFIED] [2018-10-24 12:05:20,207 WARN L1239 BoogieBacktranslator]: unknown boogie variable #memory_int [2018-10-24 12:05:20,210 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.10 12:05:20 BoogieIcfgContainer [2018-10-24 12:05:20,210 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-10-24 12:05:20,211 INFO L168 Benchmark]: Toolchain (without parser) took 5397.01 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 762.3 MB). Free memory was 1.4 GB in the beginning and 1.9 GB in the end (delta: -498.6 MB). Peak memory consumption was 263.7 MB. Max. memory is 7.1 GB. [2018-10-24 12:05:20,213 INFO L168 Benchmark]: CDTParser took 0.15 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. [2018-10-24 12:05:20,213 INFO L168 Benchmark]: CACSL2BoogieTranslator took 271.95 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. [2018-10-24 12:05:20,214 INFO L168 Benchmark]: Boogie Procedure Inliner took 46.48 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. [2018-10-24 12:05:20,215 INFO L168 Benchmark]: Boogie Preprocessor took 41.09 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. [2018-10-24 12:05:20,215 INFO L168 Benchmark]: RCFGBuilder took 531.19 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 762.3 MB). Free memory was 1.4 GB in the beginning and 2.2 GB in the end (delta: -813.5 MB). Peak memory consumption was 26.7 MB. Max. memory is 7.1 GB. [2018-10-24 12:05:20,216 INFO L168 Benchmark]: TraceAbstraction took 4500.33 ms. Allocated memory is still 2.3 GB. Free memory was 2.2 GB in the beginning and 1.9 GB in the end (delta: 304.3 MB). Peak memory consumption was 304.3 MB. Max. memory is 7.1 GB. [2018-10-24 12:05:20,221 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.15 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 271.95 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 46.48 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 41.09 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 531.19 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 762.3 MB). Free memory was 1.4 GB in the beginning and 2.2 GB in the end (delta: -813.5 MB). Peak memory consumption was 26.7 MB. Max. memory is 7.1 GB. * TraceAbstraction took 4500.33 ms. Allocated memory is still 2.3 GB. Free memory was 2.2 GB in the beginning and 1.9 GB in the end (delta: 304.3 MB). Peak memory consumption was 304.3 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.boogie.preprocessor: - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[main_~j~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[main_~j~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[main_~j~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[main_~j~0,QUANTIFIED] * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int * 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: 19]: Loop Invariant [2018-10-24 12:05:20,230 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[main_~j~0,QUANTIFIED] [2018-10-24 12:05:20,231 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[main_~j~0,QUANTIFIED] [2018-10-24 12:05:20,231 WARN L1239 BoogieBacktranslator]: unknown boogie variable #memory_int [2018-10-24 12:05:20,232 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[main_~j~0,QUANTIFIED] [2018-10-24 12:05:20,232 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[main_~j~0,QUANTIFIED] [2018-10-24 12:05:20,233 WARN L1239 BoogieBacktranslator]: unknown boogie variable #memory_int Derived loop invariant: ((SIZE == 1 && 0 == array) && j == 0) || (((\exists main_~j~0 : int :: menor <= unknown-#memory_int-unknown[array][4 * (main_~j~0 % 4294967296) + array] && main_~j~0 % 4294967296 < 1) && SIZE == 1) && 4294967296 * ((4294967296 * (j / 4294967296) + (-4294967296 * (SIZE / 4294967296) + SIZE)) / 4294967296) + 1 <= j) - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 23 locations, 1 error locations. SAFE Result, 4.4s OverallTime, 4 OverallIterations, 3 TraceHistogramMax, 0.9s AutomataDifference, 0.0s DeadEndRemovalTime, 0.2s HoareAnnotationTime, HoareTripleCheckerStatistics: 58 SDtfs, 25 SDslu, 96 SDs, 0 SdLazy, 84 SolverSat, 14 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.3s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 63 GetRequests, 32 SyntacticMatches, 3 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 1 DeprecatedPredicates, 120 ImplicationChecksByTransitivity, 2.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=23occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.5s AbstIntTime, 1 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 4 MinimizatonAttempts, 5 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 7 LocationsWithAnnotation, 11 PreInvPairs, 15 NumberOfFragments, 89 HoareAnnotationTreeSize, 11 FomulaSimplifications, 3 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 7 FomulaSimplificationsInter, 42 FormulaSimplificationTreeSizeReductionInter, 0.1s HoareSimplificationTimeInter, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 2.1s InterpolantComputationTime, 80 NumberOfCodeBlocks, 80 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 91 ConstructedInterpolants, 6 QuantifiedInterpolants, 6841 SizeOfPredicates, 20 NumberOfNonLiveVariables, 108 ConjunctsInSsa, 27 ConjunctsInUnsatCore, 6 InterpolantComputations, 3 PerfectInterpolantSequences, 8/14 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...