./Ultimate.py --spec ../../../trunk/examples/svcomp/ReachSafety.prp --file ../../../trunk/examples/svcomp/loop-acceleration/array_true-unreach-call3_true-termination.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 8c3fbe1c Calling Ultimate with: java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/config -Xmx12G -Xms1G -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 /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/config/TaipanReach.xml -i ../../../trunk/examples/svcomp/loop-acceleration/array_true-unreach-call3_true-termination.i -s /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UTaipan-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(__VERIFIER_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 4090a90876c90ba415ea4bea59e2b23309410708 .................................................................................................................................................................................................................................................................................................................................................................................. Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.23-8c3fbe1 [2018-10-22 15:05:55,298 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-10-22 15:05:55,299 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-10-22 15:05:55,314 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-10-22 15:05:55,315 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-10-22 15:05:55,316 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-10-22 15:05:55,317 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-10-22 15:05:55,319 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-10-22 15:05:55,320 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-10-22 15:05:55,321 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-10-22 15:05:55,323 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-10-22 15:05:55,323 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-10-22 15:05:55,324 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-10-22 15:05:55,325 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-10-22 15:05:55,326 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-10-22 15:05:55,327 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-10-22 15:05:55,328 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-10-22 15:05:55,330 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-10-22 15:05:55,332 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-10-22 15:05:55,333 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-10-22 15:05:55,335 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-10-22 15:05:55,336 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-10-22 15:05:55,339 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-10-22 15:05:55,339 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-10-22 15:05:55,339 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-10-22 15:05:55,340 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-10-22 15:05:55,341 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-10-22 15:05:55,342 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-10-22 15:05:55,343 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-10-22 15:05:55,344 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-10-22 15:05:55,344 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-10-22 15:05:55,345 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-10-22 15:05:55,345 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-10-22 15:05:55,345 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-10-22 15:05:55,347 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-10-22 15:05:55,347 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-10-22 15:05:55,348 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/config/svcomp-Reach-32bit-Taipan_Default.epf [2018-10-22 15:05:55,365 INFO L110 SettingsManager]: Loading preferences was successful [2018-10-22 15:05:55,366 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-10-22 15:05:55,368 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-10-22 15:05:55,368 INFO L133 SettingsManager]: * User list type=DISABLED [2018-10-22 15:05:55,369 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-10-22 15:05:55,369 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-10-22 15:05:55,370 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-10-22 15:05:55,370 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-10-22 15:05:55,370 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-10-22 15:05:55,370 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-10-22 15:05:55,370 INFO L133 SettingsManager]: * Interval Domain=false [2018-10-22 15:05:55,371 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-10-22 15:05:55,371 INFO L133 SettingsManager]: * sizeof long=4 [2018-10-22 15:05:55,371 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-10-22 15:05:55,371 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-10-22 15:05:55,373 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-10-22 15:05:55,373 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-10-22 15:05:55,373 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-10-22 15:05:55,373 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-10-22 15:05:55,373 INFO L133 SettingsManager]: * sizeof long double=12 [2018-10-22 15:05:55,374 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-10-22 15:05:55,374 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-10-22 15:05:55,374 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-10-22 15:05:55,374 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-10-22 15:05:55,374 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-10-22 15:05:55,375 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-10-22 15:05:55,376 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-10-22 15:05:55,376 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-10-22 15:05:55,376 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-10-22 15:05:55,377 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-10-22 15:05:55,377 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-10-22 15:05:55,377 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-10-22 15:05:55,377 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-10-22 15:05:55,377 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-10-22 15:05:55,378 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UTaipan-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(__VERIFIER_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 4090a90876c90ba415ea4bea59e2b23309410708 [2018-10-22 15:05:55,451 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-10-22 15:05:55,467 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-10-22 15:05:55,472 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-10-22 15:05:55,474 INFO L271 PluginConnector]: Initializing CDTParser... [2018-10-22 15:05:55,474 INFO L276 PluginConnector]: CDTParser initialized [2018-10-22 15:05:55,475 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/../../../trunk/examples/svcomp/loop-acceleration/array_true-unreach-call3_true-termination.i [2018-10-22 15:05:55,528 INFO L218 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/722322c8e/8c6f0ba4330c454bae54ded5d32cc7ae/FLAG3ebec1d2d [2018-10-22 15:05:55,922 INFO L298 CDTParser]: Found 1 translation units. [2018-10-22 15:05:55,922 INFO L158 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/loop-acceleration/array_true-unreach-call3_true-termination.i [2018-10-22 15:05:55,928 INFO L346 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/722322c8e/8c6f0ba4330c454bae54ded5d32cc7ae/FLAG3ebec1d2d [2018-10-22 15:05:55,941 INFO L354 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/722322c8e/8c6f0ba4330c454bae54ded5d32cc7ae [2018-10-22 15:05:55,945 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-10-22 15:05:55,947 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-10-22 15:05:55,948 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-10-22 15:05:55,948 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-10-22 15:05:55,952 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-10-22 15:05:55,953 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.10 03:05:55" (1/1) ... [2018-10-22 15:05:55,956 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@68d004eb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 03:05:55, skipping insertion in model container [2018-10-22 15:05:55,956 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.10 03:05:55" (1/1) ... [2018-10-22 15:05:55,966 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-10-22 15:05:55,993 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-10-22 15:05:56,202 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-22 15:05:56,206 INFO L189 MainTranslator]: Completed pre-run [2018-10-22 15:05:56,231 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-22 15:05:56,257 INFO L193 MainTranslator]: Completed translation [2018-10-22 15:05:56,257 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 03:05:56 WrapperNode [2018-10-22 15:05:56,258 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-10-22 15:05:56,258 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-10-22 15:05:56,259 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-10-22 15:05:56,259 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-10-22 15:05:56,266 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 03:05:56" (1/1) ... [2018-10-22 15:05:56,277 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 03:05:56" (1/1) ... [2018-10-22 15:05:56,295 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-10-22 15:05:56,295 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-10-22 15:05:56,295 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-10-22 15:05:56,295 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-10-22 15:05:56,304 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 03:05:56" (1/1) ... [2018-10-22 15:05:56,304 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 03:05:56" (1/1) ... [2018-10-22 15:05:56,306 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 03:05:56" (1/1) ... [2018-10-22 15:05:56,306 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 03:05:56" (1/1) ... [2018-10-22 15:05:56,310 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 03:05:56" (1/1) ... [2018-10-22 15:05:56,317 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 03:05:56" (1/1) ... [2018-10-22 15:05:56,318 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 03:05:56" (1/1) ... [2018-10-22 15:05:56,322 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-10-22 15:05:56,323 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-10-22 15:05:56,323 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-10-22 15:05:56,323 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-10-22 15:05:56,324 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 03:05:56" (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 [2018-10-22 15:05:56,454 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-10-22 15:05:56,454 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-10-22 15:05:56,454 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-10-22 15:05:56,454 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-10-22 15:05:56,455 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-10-22 15:05:56,455 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-10-22 15:05:56,455 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2018-10-22 15:05:56,455 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2018-10-22 15:05:56,808 INFO L341 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-10-22 15:05:56,809 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 03:05:56 BoogieIcfgContainer [2018-10-22 15:05:56,809 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-10-22 15:05:56,810 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-10-22 15:05:56,810 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-10-22 15:05:56,814 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-10-22 15:05:56,814 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.10 03:05:55" (1/3) ... [2018-10-22 15:05:56,815 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2518f8d0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.10 03:05:56, skipping insertion in model container [2018-10-22 15:05:56,815 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 03:05:56" (2/3) ... [2018-10-22 15:05:56,816 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2518f8d0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.10 03:05:56, skipping insertion in model container [2018-10-22 15:05:56,816 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 03:05:56" (3/3) ... [2018-10-22 15:05:56,818 INFO L112 eAbstractionObserver]: Analyzing ICFG array_true-unreach-call3_true-termination.i [2018-10-22 15:05:56,825 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-10-22 15:05:56,833 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-10-22 15:05:56,849 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-10-22 15:05:56,882 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-10-22 15:05:56,883 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-10-22 15:05:56,883 INFO L383 AbstractCegarLoop]: Hoare is true [2018-10-22 15:05:56,883 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-10-22 15:05:56,883 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-10-22 15:05:56,883 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-10-22 15:05:56,883 INFO L387 AbstractCegarLoop]: Difference is false [2018-10-22 15:05:56,884 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-10-22 15:05:56,884 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-10-22 15:05:56,901 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states. [2018-10-22 15:05:56,907 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2018-10-22 15:05:56,908 INFO L367 BasicCegarLoop]: Found error trace [2018-10-22 15:05:56,909 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-22 15:05:56,911 INFO L424 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-22 15:05:56,917 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-22 15:05:56,917 INFO L82 PathProgramCache]: Analyzing trace with hash -1794184535, now seen corresponding path program 1 times [2018-10-22 15:05:56,922 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-22 15:05:56,972 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-22 15:05:56,973 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-22 15:05:56,973 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-22 15:05:56,973 INFO L295 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-22 15:05:57,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-22 15:05:57,052 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-22 15:05:57,054 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-22 15:05:57,055 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-10-22 15:05:57,055 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-22 15:05:57,059 INFO L460 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-10-22 15:05:57,073 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-10-22 15:05:57,074 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-10-22 15:05:57,077 INFO L87 Difference]: Start difference. First operand 26 states. Second operand 2 states. [2018-10-22 15:05:57,100 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-22 15:05:57,100 INFO L93 Difference]: Finished difference Result 43 states and 52 transitions. [2018-10-22 15:05:57,100 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-10-22 15:05:57,102 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 13 [2018-10-22 15:05:57,103 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-22 15:05:57,111 INFO L225 Difference]: With dead ends: 43 [2018-10-22 15:05:57,111 INFO L226 Difference]: Without dead ends: 19 [2018-10-22 15:05:57,115 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 [2018-10-22 15:05:57,134 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19 states. [2018-10-22 15:05:57,152 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19 to 19. [2018-10-22 15:05:57,154 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19 states. [2018-10-22 15:05:57,155 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 21 transitions. [2018-10-22 15:05:57,157 INFO L78 Accepts]: Start accepts. Automaton has 19 states and 21 transitions. Word has length 13 [2018-10-22 15:05:57,157 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-22 15:05:57,158 INFO L481 AbstractCegarLoop]: Abstraction has 19 states and 21 transitions. [2018-10-22 15:05:57,158 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-10-22 15:05:57,158 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 21 transitions. [2018-10-22 15:05:57,159 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2018-10-22 15:05:57,159 INFO L367 BasicCegarLoop]: Found error trace [2018-10-22 15:05:57,159 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-22 15:05:57,159 INFO L424 AbstractCegarLoop]: === Iteration 2 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-22 15:05:57,160 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-22 15:05:57,161 INFO L82 PathProgramCache]: Analyzing trace with hash 612144665, now seen corresponding path program 1 times [2018-10-22 15:05:57,161 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-22 15:05:57,162 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-22 15:05:57,162 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-22 15:05:57,162 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-22 15:05:57,162 INFO L295 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-22 15:05:57,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-22 15:05:57,290 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-22 15:05:57,290 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-22 15:05:57,290 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-10-22 15:05:57,290 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-22 15:05:57,292 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-10-22 15:05:57,293 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-10-22 15:05:57,293 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-10-22 15:05:57,293 INFO L87 Difference]: Start difference. First operand 19 states and 21 transitions. Second operand 3 states. [2018-10-22 15:05:57,471 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-22 15:05:57,471 INFO L93 Difference]: Finished difference Result 37 states and 43 transitions. [2018-10-22 15:05:57,472 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-10-22 15:05:57,473 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 15 [2018-10-22 15:05:57,473 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-22 15:05:57,476 INFO L225 Difference]: With dead ends: 37 [2018-10-22 15:05:57,477 INFO L226 Difference]: Without dead ends: 27 [2018-10-22 15:05:57,478 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 [2018-10-22 15:05:57,478 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27 states. [2018-10-22 15:05:57,484 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27 to 24. [2018-10-22 15:05:57,484 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 24 states. [2018-10-22 15:05:57,485 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 27 transitions. [2018-10-22 15:05:57,485 INFO L78 Accepts]: Start accepts. Automaton has 24 states and 27 transitions. Word has length 15 [2018-10-22 15:05:57,485 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-22 15:05:57,485 INFO L481 AbstractCegarLoop]: Abstraction has 24 states and 27 transitions. [2018-10-22 15:05:57,486 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-10-22 15:05:57,486 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 27 transitions. [2018-10-22 15:05:57,486 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2018-10-22 15:05:57,488 INFO L367 BasicCegarLoop]: Found error trace [2018-10-22 15:05:57,488 INFO L375 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-22 15:05:57,489 INFO L424 AbstractCegarLoop]: === Iteration 3 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-22 15:05:57,489 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-22 15:05:57,490 INFO L82 PathProgramCache]: Analyzing trace with hash -1794172150, now seen corresponding path program 1 times [2018-10-22 15:05:57,490 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-22 15:05:57,491 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-22 15:05:57,491 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-22 15:05:57,491 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-22 15:05:57,491 INFO L295 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-22 15:05:57,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-22 15:05:57,608 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-22 15:05:57,608 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-22 15:05:57,608 INFO L197 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-10-22 15:05:57,610 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 19 with the following transitions: [2018-10-22 15:05:57,612 INFO L202 CegarAbsIntRunner]: [0], [1], [5], [9], [12], [14], [16], [20], [24], [27], [43], [46], [48], [54], [55], [56], [58] [2018-10-22 15:05:57,675 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-10-22 15:05:57,675 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-10-22 15:05:58,246 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-10-22 15:05:58,248 INFO L272 AbstractInterpreter]: Visited 16 different actions 44 times. Merged at 3 different actions 21 times. Widened at 1 different actions 3 times. Found 1 fixpoints after 1 different actions. Largest state had 30 variables. [2018-10-22 15:05:58,270 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-22 15:05:58,270 INFO L398 sIntCurrentIteration]: Generating AbsInt predicates [2018-10-22 15:05:58,410 INFO L232 lantSequenceWeakener]: Weakened 16 states. On average, predicates are now at 89.08% of their original sizes. [2018-10-22 15:05:58,410 INFO L411 sIntCurrentIteration]: Unifying AI predicates [2018-10-22 15:05:58,636 INFO L422 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-10-22 15:05:58,637 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-10-22 15:05:58,637 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [9] imperfect sequences [4] total 11 [2018-10-22 15:05:58,637 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-22 15:05:58,637 INFO L460 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-10-22 15:05:58,638 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-10-22 15:05:58,638 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2018-10-22 15:05:58,638 INFO L87 Difference]: Start difference. First operand 24 states and 27 transitions. Second operand 9 states. [2018-10-22 15:05:59,264 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-22 15:05:59,264 INFO L93 Difference]: Finished difference Result 44 states and 53 transitions. [2018-10-22 15:05:59,265 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-10-22 15:05:59,265 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 18 [2018-10-22 15:05:59,265 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-22 15:05:59,265 INFO L225 Difference]: With dead ends: 44 [2018-10-22 15:05:59,265 INFO L226 Difference]: Without dead ends: 0 [2018-10-22 15:05:59,267 INFO L605 BasicCegarLoop]: 2 DeclaredPredicates, 18 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=26, Invalid=64, Unknown=0, NotChecked=0, Total=90 [2018-10-22 15:05:59,267 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-10-22 15:05:59,267 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-10-22 15:05:59,267 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-10-22 15:05:59,267 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-10-22 15:05:59,268 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 18 [2018-10-22 15:05:59,268 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-22 15:05:59,268 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-10-22 15:05:59,268 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-10-22 15:05:59,268 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-10-22 15:05:59,268 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-10-22 15:05:59,272 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2018-10-22 15:05:59,608 WARN L179 SmtUtils]: Spent 255.00 ms on a formula simplification. DAG size of input: 32 DAG size of output: 12 [2018-10-22 15:05:59,763 WARN L179 SmtUtils]: Spent 151.00 ms on a formula simplification. DAG size of input: 32 DAG size of output: 12 [2018-10-22 15:05:59,821 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2018-10-22 15:05:59,821 INFO L428 ceAbstractionStarter]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: true [2018-10-22 15:05:59,822 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2018-10-22 15:05:59,822 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2018-10-22 15:05:59,822 INFO L428 ceAbstractionStarter]: At program point L-1(line -1) the Hoare annotation is: true [2018-10-22 15:05:59,822 INFO L428 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2018-10-22 15:05:59,822 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2018-10-22 15:05:59,822 INFO L425 ceAbstractionStarter]: For program point mainEXIT(lines 9 23) no Hoare annotation was computed. [2018-10-22 15:05:59,822 INFO L425 ceAbstractionStarter]: For program point L17-1(lines 17 21) no Hoare annotation was computed. [2018-10-22 15:05:59,822 INFO L425 ceAbstractionStarter]: For program point L17-3(lines 17 21) no Hoare annotation was computed. [2018-10-22 15:05:59,824 INFO L421 ceAbstractionStarter]: At program point L17-4(lines 17 21) the Hoare annotation is: (let ((.cse0 (* 2 |main_~#A~0.offset|))) (and (<= main_~i~0 (+ |main_~#A~0.offset| 1024)) (<= .cse0 0) (<= |main_~#A~0.offset| main_~i~0) (<= 0 .cse0))) [2018-10-22 15:05:59,824 INFO L425 ceAbstractionStarter]: For program point mainFINAL(lines 9 23) no Hoare annotation was computed. [2018-10-22 15:05:59,824 INFO L425 ceAbstractionStarter]: For program point L13-1(lines 13 15) no Hoare annotation was computed. [2018-10-22 15:05:59,825 INFO L421 ceAbstractionStarter]: At program point L17-5(lines 17 21) the Hoare annotation is: (let ((.cse0 (* 2 |main_~#A~0.offset|))) (and (<= main_~i~0 (+ |main_~#A~0.offset| 1024)) (<= .cse0 0) (<= |main_~#A~0.offset| main_~i~0) (<= 0 .cse0))) [2018-10-22 15:05:59,825 INFO L425 ceAbstractionStarter]: For program point L13-3(lines 13 15) no Hoare annotation was computed. [2018-10-22 15:05:59,825 INFO L421 ceAbstractionStarter]: At program point L13-4(lines 13 15) the Hoare annotation is: (let ((.cse0 (* 2 |main_~#A~0.offset|))) (and (<= main_~i~0 (+ |main_~#A~0.offset| 1024)) (<= .cse0 0) (<= |main_~#A~0.offset| main_~i~0) (<= 0 .cse0))) [2018-10-22 15:05:59,825 INFO L425 ceAbstractionStarter]: For program point L13-5(lines 13 15) no Hoare annotation was computed. [2018-10-22 15:05:59,825 INFO L428 ceAbstractionStarter]: At program point mainENTRY(lines 9 23) the Hoare annotation is: true [2018-10-22 15:05:59,825 INFO L425 ceAbstractionStarter]: For program point L22(line 22) no Hoare annotation was computed. [2018-10-22 15:05:59,826 INFO L425 ceAbstractionStarter]: For program point L18(lines 18 20) no Hoare annotation was computed. [2018-10-22 15:05:59,827 INFO L425 ceAbstractionStarter]: For program point __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION(line 5) no Hoare annotation was computed. [2018-10-22 15:05:59,827 INFO L428 ceAbstractionStarter]: At program point __VERIFIER_assertENTRY(lines 3 8) the Hoare annotation is: true [2018-10-22 15:05:59,827 INFO L425 ceAbstractionStarter]: For program point __VERIFIER_assertEXIT(lines 3 8) no Hoare annotation was computed. [2018-10-22 15:05:59,828 INFO L425 ceAbstractionStarter]: For program point L5(line 5) no Hoare annotation was computed. [2018-10-22 15:05:59,828 INFO L425 ceAbstractionStarter]: For program point L4(lines 4 6) no Hoare annotation was computed. [2018-10-22 15:05:59,828 INFO L425 ceAbstractionStarter]: For program point L4-2(lines 3 8) no Hoare annotation was computed. [2018-10-22 15:05:59,839 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.10 03:05:59 BoogieIcfgContainer [2018-10-22 15:05:59,839 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-10-22 15:05:59,840 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-10-22 15:05:59,840 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-10-22 15:05:59,840 INFO L276 PluginConnector]: Witness Printer initialized [2018-10-22 15:05:59,841 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 03:05:56" (3/4) ... [2018-10-22 15:05:59,845 INFO L144 WitnessPrinter]: Generating witness for correct program [2018-10-22 15:05:59,851 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure ULTIMATE.init [2018-10-22 15:05:59,852 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure main [2018-10-22 15:05:59,852 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure __VERIFIER_assert [2018-10-22 15:05:59,856 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 20 nodes and edges [2018-10-22 15:05:59,857 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 9 nodes and edges [2018-10-22 15:05:59,857 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2018-10-22 15:05:59,857 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2018-10-22 15:05:59,905 INFO L145 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/witness.graphml [2018-10-22 15:05:59,905 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-10-22 15:05:59,906 INFO L168 Benchmark]: Toolchain (without parser) took 3960.21 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 159.9 MB). Free memory was 954.5 MB in the beginning and 893.3 MB in the end (delta: 61.2 MB). Peak memory consumption was 221.1 MB. Max. memory is 11.5 GB. [2018-10-22 15:05:59,908 INFO L168 Benchmark]: CDTParser took 0.18 ms. Allocated memory is still 1.0 GB. Free memory is still 978.7 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-10-22 15:05:59,908 INFO L168 Benchmark]: CACSL2BoogieTranslator took 309.96 ms. Allocated memory is still 1.0 GB. Free memory was 954.5 MB in the beginning and 943.8 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2018-10-22 15:05:59,909 INFO L168 Benchmark]: Boogie Procedure Inliner took 36.39 ms. Allocated memory is still 1.0 GB. Free memory is still 943.8 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-10-22 15:05:59,909 INFO L168 Benchmark]: Boogie Preprocessor took 27.37 ms. Allocated memory is still 1.0 GB. Free memory was 943.8 MB in the beginning and 938.4 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. [2018-10-22 15:05:59,911 INFO L168 Benchmark]: RCFGBuilder took 486.83 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 159.9 MB). Free memory was 938.4 MB in the beginning and 1.1 GB in the end (delta: -196.0 MB). Peak memory consumption was 14.8 MB. Max. memory is 11.5 GB. [2018-10-22 15:05:59,912 INFO L168 Benchmark]: TraceAbstraction took 3029.14 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 893.3 MB in the end (delta: 241.1 MB). Peak memory consumption was 241.1 MB. Max. memory is 11.5 GB. [2018-10-22 15:05:59,913 INFO L168 Benchmark]: Witness Printer took 65.54 ms. Allocated memory is still 1.2 GB. Free memory is still 893.3 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-10-22 15:05:59,918 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18 ms. Allocated memory is still 1.0 GB. Free memory is still 978.7 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 309.96 ms. Allocated memory is still 1.0 GB. Free memory was 954.5 MB in the beginning and 943.8 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 36.39 ms. Allocated memory is still 1.0 GB. Free memory is still 943.8 MB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 27.37 ms. Allocated memory is still 1.0 GB. Free memory was 943.8 MB in the beginning and 938.4 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. * RCFGBuilder took 486.83 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 159.9 MB). Free memory was 938.4 MB in the beginning and 1.1 GB in the end (delta: -196.0 MB). Peak memory consumption was 14.8 MB. Max. memory is 11.5 GB. * TraceAbstraction took 3029.14 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 893.3 MB in the end (delta: 241.1 MB). Peak memory consumption was 241.1 MB. Max. memory is 11.5 GB. * Witness Printer took 65.54 ms. Allocated memory is still 1.2 GB. Free memory is still 893.3 MB. There was no memory consumed. Max. memory is 11.5 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: 17]: Loop Invariant Derived loop invariant: ((i <= A + 1024 && 2 * A <= 0) && A <= i) && 0 <= 2 * A - InvariantResult [Line: 13]: Loop Invariant Derived loop invariant: ((i <= A + 1024 && 2 * A <= 0) && A <= i) && 0 <= 2 * A - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 26 locations, 1 error locations. SAFE Result, 2.9s OverallTime, 3 OverallIterations, 2 TraceHistogramMax, 0.8s AutomataDifference, 0.0s DeadEndRemovalTime, 0.5s HoareAnnotationTime, HoareTripleCheckerStatistics: 55 SDtfs, 42 SDslu, 60 SDs, 0 SdLazy, 23 SolverSat, 16 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.3s Time, PredicateUnifierStatistics: 2 DeclaredPredicates, 23 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=26occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.6s AbstIntTime, 1 AbstIntIterations, 1 AbstIntStrong, 0.942156862745098 AbsIntWeakeningRatio, 1.411764705882353 AbsIntAvgWeakeningVarsNumRemoved, 99.29411764705883 AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 3 MinimizatonAttempts, 3 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 8 LocationsWithAnnotation, 13 PreInvPairs, 21 NumberOfFragments, 62 HoareAnnotationTreeSize, 13 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 8 FomulaSimplificationsInter, 300 FormulaSimplificationTreeSizeReductionInter, 0.4s HoareSimplificationTimeInter, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 46 NumberOfCodeBlocks, 46 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 43 ConstructedInterpolants, 0 QuantifiedInterpolants, 855 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 3 InterpolantComputations, 2 PerfectInterpolantSequences, 0/2 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...