./Ultimate.py --spec ../../../trunk/examples/svcomp/ReachSafety.prp --file ../../../trunk/examples/svcomp/loop-lit/jm2006_true-unreach-call_true-termination.c.i --full-output --rcfgbuilder.size.of.a.code.block SingleStatement --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 0210da8c 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-lit/jm2006_true-unreach-call_true-termination.c.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 37aa7dd2e80998c2241e95adb0e8008dc0337fe8 --rcfgbuilder.size.of.a.code.block SingleStatement ............................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.23-0210da8 [2018-10-22 09:54:37,453 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-10-22 09:54:37,454 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-10-22 09:54:37,465 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-10-22 09:54:37,465 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-10-22 09:54:37,466 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-10-22 09:54:37,467 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-10-22 09:54:37,469 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-10-22 09:54:37,470 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-10-22 09:54:37,471 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-10-22 09:54:37,472 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-10-22 09:54:37,473 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-10-22 09:54:37,473 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-10-22 09:54:37,475 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-10-22 09:54:37,476 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-10-22 09:54:37,477 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-10-22 09:54:37,478 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-10-22 09:54:37,480 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-10-22 09:54:37,482 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-10-22 09:54:37,484 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-10-22 09:54:37,485 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-10-22 09:54:37,486 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-10-22 09:54:37,489 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-10-22 09:54:37,489 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-10-22 09:54:37,490 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-10-22 09:54:37,491 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-10-22 09:54:37,492 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-10-22 09:54:37,493 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-10-22 09:54:37,494 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-10-22 09:54:37,495 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-10-22 09:54:37,496 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-10-22 09:54:37,496 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-10-22 09:54:37,497 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-10-22 09:54:37,497 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-10-22 09:54:37,498 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-10-22 09:54:37,499 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-10-22 09:54:37,500 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/config/svcomp-Reach-32bit-Taipan_Default.epf [2018-10-22 09:54:37,515 INFO L110 SettingsManager]: Loading preferences was successful [2018-10-22 09:54:37,516 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-10-22 09:54:37,516 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-10-22 09:54:37,517 INFO L133 SettingsManager]: * User list type=DISABLED [2018-10-22 09:54:37,517 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-10-22 09:54:37,518 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-10-22 09:54:37,518 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-10-22 09:54:37,518 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-10-22 09:54:37,518 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-10-22 09:54:37,518 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-10-22 09:54:37,518 INFO L133 SettingsManager]: * Interval Domain=false [2018-10-22 09:54:37,520 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-10-22 09:54:37,520 INFO L133 SettingsManager]: * sizeof long=4 [2018-10-22 09:54:37,520 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-10-22 09:54:37,521 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-10-22 09:54:37,521 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-10-22 09:54:37,521 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-10-22 09:54:37,521 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-10-22 09:54:37,521 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-10-22 09:54:37,521 INFO L133 SettingsManager]: * sizeof long double=12 [2018-10-22 09:54:37,522 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-10-22 09:54:37,523 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-10-22 09:54:37,523 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-10-22 09:54:37,523 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-10-22 09:54:37,523 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-10-22 09:54:37,523 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-10-22 09:54:37,524 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-10-22 09:54:37,524 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-10-22 09:54:37,524 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-10-22 09:54:37,524 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-10-22 09:54:37,524 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-10-22 09:54:37,525 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-10-22 09:54:37,526 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-10-22 09:54:37,526 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-10-22 09:54:37,526 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 -> 37aa7dd2e80998c2241e95adb0e8008dc0337fe8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SingleStatement [2018-10-22 09:54:37,589 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-10-22 09:54:37,602 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-10-22 09:54:37,610 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-10-22 09:54:37,611 INFO L271 PluginConnector]: Initializing CDTParser... [2018-10-22 09:54:37,612 INFO L276 PluginConnector]: CDTParser initialized [2018-10-22 09:54:37,613 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/../../../trunk/examples/svcomp/loop-lit/jm2006_true-unreach-call_true-termination.c.i [2018-10-22 09:54:37,686 INFO L218 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/9e402124e/42c98daf2d80432793e8d621f0d0c0ac/FLAGe8891ce8e [2018-10-22 09:54:38,086 INFO L298 CDTParser]: Found 1 translation units. [2018-10-22 09:54:38,086 INFO L158 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/loop-lit/jm2006_true-unreach-call_true-termination.c.i [2018-10-22 09:54:38,093 INFO L346 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/9e402124e/42c98daf2d80432793e8d621f0d0c0ac/FLAGe8891ce8e [2018-10-22 09:54:38,109 INFO L354 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/9e402124e/42c98daf2d80432793e8d621f0d0c0ac [2018-10-22 09:54:38,114 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-10-22 09:54:38,115 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-10-22 09:54:38,116 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-10-22 09:54:38,117 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-10-22 09:54:38,120 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-10-22 09:54:38,122 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.10 09:54:38" (1/1) ... [2018-10-22 09:54:38,126 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3d29ecb5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 09:54:38, skipping insertion in model container [2018-10-22 09:54:38,127 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.10 09:54:38" (1/1) ... [2018-10-22 09:54:38,138 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-10-22 09:54:38,165 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-10-22 09:54:38,394 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-22 09:54:38,400 INFO L189 MainTranslator]: Completed pre-run [2018-10-22 09:54:38,420 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-22 09:54:38,438 INFO L193 MainTranslator]: Completed translation [2018-10-22 09:54:38,439 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 09:54:38 WrapperNode [2018-10-22 09:54:38,439 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-10-22 09:54:38,440 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-10-22 09:54:38,440 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-10-22 09:54:38,441 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-10-22 09:54:38,450 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 09:54:38" (1/1) ... [2018-10-22 09:54:38,455 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 09:54:38" (1/1) ... [2018-10-22 09:54:38,460 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-10-22 09:54:38,460 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-10-22 09:54:38,460 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-10-22 09:54:38,460 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-10-22 09:54:38,469 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 09:54:38" (1/1) ... [2018-10-22 09:54:38,469 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 09:54:38" (1/1) ... [2018-10-22 09:54:38,470 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 09:54:38" (1/1) ... [2018-10-22 09:54:38,470 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 09:54:38" (1/1) ... [2018-10-22 09:54:38,473 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 09:54:38" (1/1) ... [2018-10-22 09:54:38,478 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 09:54:38" (1/1) ... [2018-10-22 09:54:38,479 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 09:54:38" (1/1) ... [2018-10-22 09:54:38,480 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-10-22 09:54:38,481 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-10-22 09:54:38,481 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-10-22 09:54:38,481 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-10-22 09:54:38,482 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 09:54:38" (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 09:54:38,613 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-10-22 09:54:38,615 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-10-22 09:54:38,615 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-10-22 09:54:38,615 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-10-22 09:54:38,615 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-10-22 09:54:38,615 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-10-22 09:54:38,615 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2018-10-22 09:54:38,616 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2018-10-22 09:54:39,009 INFO L341 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-10-22 09:54:39,010 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 09:54:39 BoogieIcfgContainer [2018-10-22 09:54:39,010 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-10-22 09:54:39,011 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-10-22 09:54:39,011 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-10-22 09:54:39,014 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-10-22 09:54:39,014 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.10 09:54:38" (1/3) ... [2018-10-22 09:54:39,015 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@60885a05 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.10 09:54:39, skipping insertion in model container [2018-10-22 09:54:39,015 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 09:54:38" (2/3) ... [2018-10-22 09:54:39,016 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@60885a05 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.10 09:54:39, skipping insertion in model container [2018-10-22 09:54:39,016 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 09:54:39" (3/3) ... [2018-10-22 09:54:39,017 INFO L112 eAbstractionObserver]: Analyzing ICFG jm2006_true-unreach-call_true-termination.c.i [2018-10-22 09:54:39,028 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-10-22 09:54:39,036 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-10-22 09:54:39,052 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-10-22 09:54:39,087 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-10-22 09:54:39,088 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-10-22 09:54:39,088 INFO L383 AbstractCegarLoop]: Hoare is true [2018-10-22 09:54:39,089 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-10-22 09:54:39,089 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-10-22 09:54:39,089 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-10-22 09:54:39,089 INFO L387 AbstractCegarLoop]: Difference is false [2018-10-22 09:54:39,089 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-10-22 09:54:39,089 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-10-22 09:54:39,110 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states. [2018-10-22 09:54:39,116 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2018-10-22 09:54:39,116 INFO L367 BasicCegarLoop]: Found error trace [2018-10-22 09:54:39,117 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-22 09:54:39,120 INFO L424 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-22 09:54:39,125 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-22 09:54:39,125 INFO L82 PathProgramCache]: Analyzing trace with hash -135223108, now seen corresponding path program 1 times [2018-10-22 09:54:39,128 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-22 09:54:39,175 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-22 09:54:39,175 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-22 09:54:39,175 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-22 09:54:39,175 INFO L295 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-22 09:54:39,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-22 09:54:39,249 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 09:54:39,252 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-22 09:54:39,252 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-10-22 09:54:39,252 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-22 09:54:39,257 INFO L460 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-10-22 09:54:39,269 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-10-22 09:54:39,270 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-10-22 09:54:39,272 INFO L87 Difference]: Start difference. First operand 37 states. Second operand 2 states. [2018-10-22 09:54:39,297 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-22 09:54:39,297 INFO L93 Difference]: Finished difference Result 50 states and 56 transitions. [2018-10-22 09:54:39,298 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-10-22 09:54:39,299 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 21 [2018-10-22 09:54:39,300 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-22 09:54:39,309 INFO L225 Difference]: With dead ends: 50 [2018-10-22 09:54:39,309 INFO L226 Difference]: Without dead ends: 29 [2018-10-22 09:54:39,313 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 09:54:39,330 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29 states. [2018-10-22 09:54:39,347 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29 to 29. [2018-10-22 09:54:39,348 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 29 states. [2018-10-22 09:54:39,350 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 29 states and 29 transitions. [2018-10-22 09:54:39,351 INFO L78 Accepts]: Start accepts. Automaton has 29 states and 29 transitions. Word has length 21 [2018-10-22 09:54:39,352 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-22 09:54:39,352 INFO L481 AbstractCegarLoop]: Abstraction has 29 states and 29 transitions. [2018-10-22 09:54:39,352 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-10-22 09:54:39,352 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 29 transitions. [2018-10-22 09:54:39,353 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2018-10-22 09:54:39,353 INFO L367 BasicCegarLoop]: Found error trace [2018-10-22 09:54:39,354 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-22 09:54:39,354 INFO L424 AbstractCegarLoop]: === Iteration 2 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-22 09:54:39,354 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-22 09:54:39,354 INFO L82 PathProgramCache]: Analyzing trace with hash 142219698, now seen corresponding path program 1 times [2018-10-22 09:54:39,355 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-22 09:54:39,356 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-22 09:54:39,356 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-22 09:54:39,357 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-22 09:54:39,357 INFO L295 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-22 09:54:39,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-22 09:54:40,152 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 09:54:40,153 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-22 09:54:40,153 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2018-10-22 09:54:40,153 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-22 09:54:40,157 INFO L460 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-10-22 09:54:40,157 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-10-22 09:54:40,157 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2018-10-22 09:54:40,161 INFO L87 Difference]: Start difference. First operand 29 states and 29 transitions. Second operand 9 states. [2018-10-22 09:54:40,608 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-22 09:54:40,608 INFO L93 Difference]: Finished difference Result 39 states and 39 transitions. [2018-10-22 09:54:40,609 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2018-10-22 09:54:40,609 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 22 [2018-10-22 09:54:40,609 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-22 09:54:40,610 INFO L225 Difference]: With dead ends: 39 [2018-10-22 09:54:40,611 INFO L226 Difference]: Without dead ends: 33 [2018-10-22 09:54:40,613 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=43, Invalid=113, Unknown=0, NotChecked=0, Total=156 [2018-10-22 09:54:40,613 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33 states. [2018-10-22 09:54:40,618 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33 to 31. [2018-10-22 09:54:40,619 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 31 states. [2018-10-22 09:54:40,620 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 31 states and 31 transitions. [2018-10-22 09:54:40,620 INFO L78 Accepts]: Start accepts. Automaton has 31 states and 31 transitions. Word has length 22 [2018-10-22 09:54:40,620 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-22 09:54:40,621 INFO L481 AbstractCegarLoop]: Abstraction has 31 states and 31 transitions. [2018-10-22 09:54:40,621 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-10-22 09:54:40,621 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 31 transitions. [2018-10-22 09:54:40,622 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2018-10-22 09:54:40,622 INFO L367 BasicCegarLoop]: Found error trace [2018-10-22 09:54:40,622 INFO L375 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-22 09:54:40,623 INFO L424 AbstractCegarLoop]: === Iteration 3 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-22 09:54:40,623 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-22 09:54:40,623 INFO L82 PathProgramCache]: Analyzing trace with hash 1285695849, now seen corresponding path program 1 times [2018-10-22 09:54:40,624 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-22 09:54:40,625 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-22 09:54:40,625 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-22 09:54:40,625 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-22 09:54:40,626 INFO L295 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-22 09:54:40,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-22 09:54:41,326 WARN L179 SmtUtils]: Spent 266.00 ms on a formula simplification. DAG size of input: 15 DAG size of output: 14 [2018-10-22 09:54:41,435 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 09:54:41,436 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-22 09:54:41,436 INFO L197 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-10-22 09:54:41,437 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 31 with the following transitions: [2018-10-22 09:54:41,439 INFO L202 CegarAbsIntRunner]: [0], [4], [5], [6], [7], [8], [9], [10], [11], [16], [17], [18], [22], [26], [28], [29], [30], [31], [32], [33], [34], [40], [47], [50], [52], [58], [59], [60], [62] [2018-10-22 09:54:41,493 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-10-22 09:54:41,494 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-10-22 09:54:41,910 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-10-22 09:54:41,911 INFO L272 AbstractInterpreter]: Visited 29 different actions 125 times. Merged at 10 different actions 70 times. Widened at 1 different actions 3 times. Found 1 fixpoints after 1 different actions. Largest state had 8 variables. [2018-10-22 09:54:41,952 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-22 09:54:41,954 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2018-10-22 09:54:41,954 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-22 09:54:41,954 INFO L197 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 [2018-10-22 09:54:41,964 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-22 09:54:41,964 INFO L295 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-10-22 09:54:41,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-22 09:54:42,000 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-10-22 09:54:42,309 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 09:54:42,310 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-10-22 09:54:42,764 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 09:54:42,785 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-22 09:54:42,785 INFO L197 anRefinementStrategy]: Switched to InterpolantGenerator mode CVC4_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/cvc4nyu Starting monitored process 3 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk --tlimit-per=12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk --tlimit-per=12000 [2018-10-22 09:54:42,818 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-22 09:54:42,818 INFO L295 anRefinementStrategy]: Using traceCheck mode CVC4_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-10-22 09:54:42,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-22 09:54:42,842 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-10-22 09:54:42,884 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 09:54:42,884 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-10-22 09:54:42,962 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 09:54:42,964 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 5 imperfect interpolant sequences. [2018-10-22 09:54:42,964 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 12, 12, 12, 12] total 27 [2018-10-22 09:54:42,964 INFO L258 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-10-22 09:54:42,964 INFO L460 AbstractCegarLoop]: Interpolant automaton has 18 states [2018-10-22 09:54:42,965 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2018-10-22 09:54:42,966 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=88, Invalid=614, Unknown=0, NotChecked=0, Total=702 [2018-10-22 09:54:42,967 INFO L87 Difference]: Start difference. First operand 31 states and 31 transitions. Second operand 18 states. [2018-10-22 09:54:43,699 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-22 09:54:43,699 INFO L93 Difference]: Finished difference Result 43 states and 44 transitions. [2018-10-22 09:54:43,700 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2018-10-22 09:54:43,700 INFO L78 Accepts]: Start accepts. Automaton has 18 states. Word has length 30 [2018-10-22 09:54:43,700 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-22 09:54:43,701 INFO L225 Difference]: With dead ends: 43 [2018-10-22 09:54:43,701 INFO L226 Difference]: Without dead ends: 0 [2018-10-22 09:54:43,702 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 144 GetRequests, 99 SyntacticMatches, 6 SemanticMatches, 39 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 357 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=219, Invalid=1421, Unknown=0, NotChecked=0, Total=1640 [2018-10-22 09:54:43,703 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-10-22 09:54:43,703 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-10-22 09:54:43,703 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-10-22 09:54:43,703 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-10-22 09:54:43,703 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 30 [2018-10-22 09:54:43,704 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-22 09:54:43,704 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-10-22 09:54:43,704 INFO L482 AbstractCegarLoop]: Interpolant automaton has 18 states. [2018-10-22 09:54:43,704 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-10-22 09:54:43,704 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-10-22 09:54:43,708 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2018-10-22 09:54:43,831 INFO L428 ceAbstractionStarter]: At program point ULTIMATE.initFINAL(line -1) the Hoare annotation is: true [2018-10-22 09:54:43,831 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2018-10-22 09:54:43,832 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2018-10-22 09:54:43,832 INFO L428 ceAbstractionStarter]: At program point L-1(line -1) the Hoare annotation is: true [2018-10-22 09:54:43,832 INFO L428 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2018-10-22 09:54:43,832 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2018-10-22 09:54:43,833 INFO L425 ceAbstractionStarter]: For program point mainEXIT(lines 10 25) no Hoare annotation was computed. [2018-10-22 09:54:43,833 INFO L425 ceAbstractionStarter]: For program point L21(lines 21 23) no Hoare annotation was computed. [2018-10-22 09:54:43,833 INFO L425 ceAbstractionStarter]: For program point L19(line 19) no Hoare annotation was computed. [2018-10-22 09:54:43,833 INFO L425 ceAbstractionStarter]: For program point L19-1(line 19) no Hoare annotation was computed. [2018-10-22 09:54:43,833 INFO L425 ceAbstractionStarter]: For program point L19-2(line 19) no Hoare annotation was computed. [2018-10-22 09:54:43,833 INFO L425 ceAbstractionStarter]: For program point L17-1(lines 17 20) no Hoare annotation was computed. [2018-10-22 09:54:43,833 INFO L425 ceAbstractionStarter]: For program point L15(line 15) no Hoare annotation was computed. [2018-10-22 09:54:43,834 INFO L421 ceAbstractionStarter]: At program point L17-3(lines 17 20) the Hoare annotation is: (let ((.cse1 (+ main_~i~0 main_~y~0)) (.cse0 (+ main_~x~0 main_~j~0))) (and (<= 0 main_~j~0) (<= .cse0 .cse1) (<= .cse1 .cse0))) [2018-10-22 09:54:43,834 INFO L425 ceAbstractionStarter]: For program point L13(line 13) no Hoare annotation was computed. [2018-10-22 09:54:43,834 INFO L425 ceAbstractionStarter]: For program point L17-4(lines 10 25) no Hoare annotation was computed. [2018-10-22 09:54:43,834 INFO L425 ceAbstractionStarter]: For program point mainFINAL(lines 10 25) no Hoare annotation was computed. [2018-10-22 09:54:43,834 INFO L425 ceAbstractionStarter]: For program point L13-1(line 13) no Hoare annotation was computed. [2018-10-22 09:54:43,834 INFO L425 ceAbstractionStarter]: For program point L11(line 11) no Hoare annotation was computed. [2018-10-22 09:54:43,835 INFO L425 ceAbstractionStarter]: For program point L13-2(line 13) no Hoare annotation was computed. [2018-10-22 09:54:43,836 INFO L428 ceAbstractionStarter]: At program point mainENTRY(lines 10 25) the Hoare annotation is: true [2018-10-22 09:54:43,836 INFO L421 ceAbstractionStarter]: At program point L22(line 22) the Hoare annotation is: (let ((.cse0 (<= 0 main_~j~0)) (.cse1 (<= 0 main_~y~0)) (.cse2 (<= main_~y~0 0))) (or (and .cse0 (<= main_~i~0 main_~x~0) .cse1 .cse2) (let ((.cse4 (+ main_~i~0 main_~y~0)) (.cse3 (+ main_~x~0 main_~j~0))) (and .cse0 .cse1 (<= .cse3 .cse4) (<= .cse4 .cse3) .cse2)))) [2018-10-22 09:54:43,836 INFO L425 ceAbstractionStarter]: For program point L18(line 18) no Hoare annotation was computed. [2018-10-22 09:54:43,836 INFO L425 ceAbstractionStarter]: For program point L18-1(line 18) no Hoare annotation was computed. [2018-10-22 09:54:43,836 INFO L425 ceAbstractionStarter]: For program point L16(line 16) no Hoare annotation was computed. [2018-10-22 09:54:43,836 INFO L425 ceAbstractionStarter]: For program point L18-2(line 18) no Hoare annotation was computed. [2018-10-22 09:54:43,837 INFO L425 ceAbstractionStarter]: For program point L14(line 14) no Hoare annotation was computed. [2018-10-22 09:54:43,837 INFO L425 ceAbstractionStarter]: For program point L14-1(line 14) no Hoare annotation was computed. [2018-10-22 09:54:43,837 INFO L425 ceAbstractionStarter]: For program point L12(line 12) no Hoare annotation was computed. [2018-10-22 09:54:43,837 INFO L425 ceAbstractionStarter]: For program point L12-1(line 12) no Hoare annotation was computed. [2018-10-22 09:54:43,837 INFO L425 ceAbstractionStarter]: For program point L12-2(line 12) no Hoare annotation was computed. [2018-10-22 09:54:43,837 INFO L428 ceAbstractionStarter]: At program point __VERIFIER_assertENTRY(lines 3 8) the Hoare annotation is: true [2018-10-22 09:54:43,837 INFO L425 ceAbstractionStarter]: For program point __VERIFIER_assertEXIT(lines 3 8) no Hoare annotation was computed. [2018-10-22 09:54:43,840 INFO L425 ceAbstractionStarter]: For program point __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION(line 5) no Hoare annotation was computed. [2018-10-22 09:54:43,840 INFO L425 ceAbstractionStarter]: For program point L5(line 5) no Hoare annotation was computed. [2018-10-22 09:54:43,840 INFO L425 ceAbstractionStarter]: For program point L4(lines 4 6) no Hoare annotation was computed. [2018-10-22 09:54:43,840 INFO L425 ceAbstractionStarter]: For program point L4-2(lines 3 8) no Hoare annotation was computed. [2018-10-22 09:54:43,856 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.10 09:54:43 BoogieIcfgContainer [2018-10-22 09:54:43,856 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-10-22 09:54:43,857 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-10-22 09:54:43,857 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-10-22 09:54:43,857 INFO L276 PluginConnector]: Witness Printer initialized [2018-10-22 09:54:43,858 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 09:54:39" (3/4) ... [2018-10-22 09:54:43,862 INFO L144 WitnessPrinter]: Generating witness for correct program [2018-10-22 09:54:43,866 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure ULTIMATE.init [2018-10-22 09:54:43,867 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure main [2018-10-22 09:54:43,867 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure __VERIFIER_assert [2018-10-22 09:54:43,872 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 10 nodes and edges [2018-10-22 09:54:43,872 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2018-10-22 09:54:43,872 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2018-10-22 09:54:43,927 INFO L145 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/witness.graphml [2018-10-22 09:54:43,927 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-10-22 09:54:43,928 INFO L168 Benchmark]: Toolchain (without parser) took 5814.11 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 155.2 MB). Free memory was 953.2 MB in the beginning and 834.5 MB in the end (delta: 118.7 MB). Peak memory consumption was 273.9 MB. Max. memory is 11.5 GB. [2018-10-22 09:54:43,929 INFO L168 Benchmark]: CDTParser took 0.20 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 09:54:43,930 INFO L168 Benchmark]: CACSL2BoogieTranslator took 323.11 ms. Allocated memory is still 1.0 GB. Free memory was 953.2 MB in the beginning and 942.5 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2018-10-22 09:54:43,931 INFO L168 Benchmark]: Boogie Procedure Inliner took 19.81 ms. Allocated memory is still 1.0 GB. Free memory is still 942.5 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-10-22 09:54:43,931 INFO L168 Benchmark]: Boogie Preprocessor took 20.33 ms. Allocated memory is still 1.0 GB. Free memory is still 942.5 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-10-22 09:54:43,932 INFO L168 Benchmark]: RCFGBuilder took 529.05 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 155.2 MB). Free memory was 942.5 MB in the beginning and 1.1 GB in the end (delta: -185.1 MB). Peak memory consumption was 26.5 MB. Max. memory is 11.5 GB. [2018-10-22 09:54:43,932 INFO L168 Benchmark]: TraceAbstraction took 4845.60 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 834.5 MB in the end (delta: 293.0 MB). Peak memory consumption was 293.0 MB. Max. memory is 11.5 GB. [2018-10-22 09:54:43,933 INFO L168 Benchmark]: Witness Printer took 70.77 ms. Allocated memory is still 1.2 GB. Free memory is still 834.5 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-10-22 09:54:43,937 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20 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 323.11 ms. Allocated memory is still 1.0 GB. Free memory was 953.2 MB in the beginning and 942.5 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 19.81 ms. Allocated memory is still 1.0 GB. Free memory is still 942.5 MB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 20.33 ms. Allocated memory is still 1.0 GB. Free memory is still 942.5 MB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 529.05 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 155.2 MB). Free memory was 942.5 MB in the beginning and 1.1 GB in the end (delta: -185.1 MB). Peak memory consumption was 26.5 MB. Max. memory is 11.5 GB. * TraceAbstraction took 4845.60 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 834.5 MB in the end (delta: 293.0 MB). Peak memory consumption was 293.0 MB. Max. memory is 11.5 GB. * Witness Printer took 70.77 ms. Allocated memory is still 1.2 GB. Free memory is still 834.5 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: (0 <= j && x + j <= i + y) && i + y <= x + j - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 37 locations, 1 error locations. SAFE Result, 4.7s OverallTime, 3 OverallIterations, 2 TraceHistogramMax, 1.2s AutomataDifference, 0.0s DeadEndRemovalTime, 0.1s HoareAnnotationTime, HoareTripleCheckerStatistics: 82 SDtfs, 51 SDslu, 276 SDs, 0 SdLazy, 271 SolverSat, 8 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.4s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 159 GetRequests, 103 SyntacticMatches, 6 SemanticMatches, 50 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 370 ImplicationChecksByTransitivity, 2.8s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=37occurred 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, 3 MinimizatonAttempts, 2 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 7 LocationsWithAnnotation, 10 PreInvPairs, 15 NumberOfFragments, 61 HoareAnnotationTreeSize, 10 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 7 FomulaSimplificationsInter, 74 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 2.4s InterpolantComputationTime, 133 NumberOfCodeBlocks, 133 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 186 ConstructedInterpolants, 0 QuantifiedInterpolants, 31610 SizeOfPredicates, 22 NumberOfNonLiveVariables, 108 ConjunctsInSsa, 44 ConjunctsInUnsatCore, 7 InterpolantComputations, 2 PerfectInterpolantSequences, 0/10 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...