./Ultimate.py --spec ../../../trunk/examples/svcomp/ReachSafety.prp --file ../../../trunk/examples/svcomp/loops/terminator_02_true-unreach-call_true-termination.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/loops/terminator_02_true-unreach-call_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 77773b6d98c13684866533d0b64942a0b1025f7d --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 09:44:42,421 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-10-22 09:44:42,423 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-10-22 09:44:42,440 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-10-22 09:44:42,441 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-10-22 09:44:42,444 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-10-22 09:44:42,446 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-10-22 09:44:42,448 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-10-22 09:44:42,451 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-10-22 09:44:42,454 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-10-22 09:44:42,456 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-10-22 09:44:42,457 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-10-22 09:44:42,458 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-10-22 09:44:42,462 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-10-22 09:44:42,470 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-10-22 09:44:42,471 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-10-22 09:44:42,471 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-10-22 09:44:42,473 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-10-22 09:44:42,478 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-10-22 09:44:42,483 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-10-22 09:44:42,484 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-10-22 09:44:42,485 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-10-22 09:44:42,487 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-10-22 09:44:42,487 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-10-22 09:44:42,487 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-10-22 09:44:42,489 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-10-22 09:44:42,490 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-10-22 09:44:42,491 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-10-22 09:44:42,492 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-10-22 09:44:42,493 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-10-22 09:44:42,493 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-10-22 09:44:42,494 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-10-22 09:44:42,494 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-10-22 09:44:42,494 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-10-22 09:44:42,495 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-10-22 09:44:42,495 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-10-22 09:44:42,497 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/config/svcomp-Reach-32bit-Taipan_Default.epf [2018-10-22 09:44:42,528 INFO L110 SettingsManager]: Loading preferences was successful [2018-10-22 09:44:42,528 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-10-22 09:44:42,531 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-10-22 09:44:42,531 INFO L133 SettingsManager]: * User list type=DISABLED [2018-10-22 09:44:42,532 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-10-22 09:44:42,532 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-10-22 09:44:42,532 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-10-22 09:44:42,532 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-10-22 09:44:42,533 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-10-22 09:44:42,533 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-10-22 09:44:42,533 INFO L133 SettingsManager]: * Interval Domain=false [2018-10-22 09:44:42,534 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-10-22 09:44:42,534 INFO L133 SettingsManager]: * sizeof long=4 [2018-10-22 09:44:42,534 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-10-22 09:44:42,534 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-10-22 09:44:42,534 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-10-22 09:44:42,535 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-10-22 09:44:42,537 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-10-22 09:44:42,537 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-10-22 09:44:42,538 INFO L133 SettingsManager]: * sizeof long double=12 [2018-10-22 09:44:42,538 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-10-22 09:44:42,538 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-10-22 09:44:42,538 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-10-22 09:44:42,538 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-10-22 09:44:42,539 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-10-22 09:44:42,539 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-10-22 09:44:42,539 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-10-22 09:44:42,539 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-10-22 09:44:42,539 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-10-22 09:44:42,540 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-10-22 09:44:42,540 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-10-22 09:44:42,540 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-10-22 09:44:42,540 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-10-22 09:44:42,540 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-10-22 09:44:42,540 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 -> 77773b6d98c13684866533d0b64942a0b1025f7d Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SingleStatement [2018-10-22 09:44:42,594 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-10-22 09:44:42,607 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-10-22 09:44:42,611 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-10-22 09:44:42,613 INFO L271 PluginConnector]: Initializing CDTParser... [2018-10-22 09:44:42,613 INFO L276 PluginConnector]: CDTParser initialized [2018-10-22 09:44:42,614 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/../../../trunk/examples/svcomp/loops/terminator_02_true-unreach-call_true-termination.i [2018-10-22 09:44:42,682 INFO L218 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/0fb7a1453/a0b5f14e257a43bf8ce1e60c152b88b3/FLAGeb0de836e [2018-10-22 09:44:43,110 INFO L298 CDTParser]: Found 1 translation units. [2018-10-22 09:44:43,111 INFO L158 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/loops/terminator_02_true-unreach-call_true-termination.i [2018-10-22 09:44:43,117 INFO L346 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/0fb7a1453/a0b5f14e257a43bf8ce1e60c152b88b3/FLAGeb0de836e [2018-10-22 09:44:43,135 INFO L354 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/0fb7a1453/a0b5f14e257a43bf8ce1e60c152b88b3 [2018-10-22 09:44:43,141 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-10-22 09:44:43,142 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-10-22 09:44:43,143 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-10-22 09:44:43,143 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-10-22 09:44:43,148 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-10-22 09:44:43,149 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.10 09:44:43" (1/1) ... [2018-10-22 09:44:43,152 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@12582e65 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 09:44:43, skipping insertion in model container [2018-10-22 09:44:43,152 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.10 09:44:43" (1/1) ... [2018-10-22 09:44:43,164 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-10-22 09:44:43,187 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-10-22 09:44:43,403 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-22 09:44:43,408 INFO L189 MainTranslator]: Completed pre-run [2018-10-22 09:44:43,434 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-22 09:44:43,456 INFO L193 MainTranslator]: Completed translation [2018-10-22 09:44:43,456 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 09:44:43 WrapperNode [2018-10-22 09:44:43,456 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-10-22 09:44:43,457 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-10-22 09:44:43,457 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-10-22 09:44:43,457 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-10-22 09:44:43,468 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 09:44:43" (1/1) ... [2018-10-22 09:44:43,475 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 09:44:43" (1/1) ... [2018-10-22 09:44:43,482 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-10-22 09:44:43,482 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-10-22 09:44:43,482 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-10-22 09:44:43,482 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-10-22 09:44:43,494 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 09:44:43" (1/1) ... [2018-10-22 09:44:43,495 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 09:44:43" (1/1) ... [2018-10-22 09:44:43,496 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 09:44:43" (1/1) ... [2018-10-22 09:44:43,497 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 09:44:43" (1/1) ... [2018-10-22 09:44:43,501 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 09:44:43" (1/1) ... [2018-10-22 09:44:43,507 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 09:44:43" (1/1) ... [2018-10-22 09:44:43,508 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 09:44:43" (1/1) ... [2018-10-22 09:44:43,510 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-10-22 09:44:43,511 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-10-22 09:44:43,511 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-10-22 09:44:43,511 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-10-22 09:44:43,512 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 09:44:43" (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 09:44:43,651 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-10-22 09:44:43,652 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-10-22 09:44:43,652 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-10-22 09:44:43,653 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-10-22 09:44:43,653 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-10-22 09:44:43,653 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-10-22 09:44:43,653 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2018-10-22 09:44:43,653 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2018-10-22 09:44:44,153 INFO L341 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-10-22 09:44:44,154 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 09:44:44 BoogieIcfgContainer [2018-10-22 09:44:44,154 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-10-22 09:44:44,155 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-10-22 09:44:44,155 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-10-22 09:44:44,158 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-10-22 09:44:44,159 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.10 09:44:43" (1/3) ... [2018-10-22 09:44:44,160 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@77f87c0e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.10 09:44:44, skipping insertion in model container [2018-10-22 09:44:44,160 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 09:44:43" (2/3) ... [2018-10-22 09:44:44,160 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@77f87c0e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.10 09:44:44, skipping insertion in model container [2018-10-22 09:44:44,160 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 09:44:44" (3/3) ... [2018-10-22 09:44:44,162 INFO L112 eAbstractionObserver]: Analyzing ICFG terminator_02_true-unreach-call_true-termination.i [2018-10-22 09:44:44,172 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-10-22 09:44:44,182 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-10-22 09:44:44,199 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-10-22 09:44:44,232 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-10-22 09:44:44,233 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-10-22 09:44:44,233 INFO L383 AbstractCegarLoop]: Hoare is true [2018-10-22 09:44:44,233 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-10-22 09:44:44,233 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-10-22 09:44:44,233 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-10-22 09:44:44,233 INFO L387 AbstractCegarLoop]: Difference is false [2018-10-22 09:44:44,233 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-10-22 09:44:44,234 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-10-22 09:44:44,252 INFO L276 IsEmpty]: Start isEmpty. Operand 44 states. [2018-10-22 09:44:44,259 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2018-10-22 09:44:44,260 INFO L367 BasicCegarLoop]: Found error trace [2018-10-22 09:44:44,261 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-22 09:44:44,263 INFO L424 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-22 09:44:44,270 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-22 09:44:44,270 INFO L82 PathProgramCache]: Analyzing trace with hash -885321176, now seen corresponding path program 1 times [2018-10-22 09:44:44,273 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-22 09:44:44,325 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-22 09:44:44,325 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-22 09:44:44,325 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-22 09:44:44,326 INFO L295 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-22 09:44:44,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-22 09:44:44,404 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 09:44:44,406 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-22 09:44:44,407 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-10-22 09:44:44,407 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-22 09:44:44,412 INFO L460 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-10-22 09:44:44,426 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-10-22 09:44:44,427 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-10-22 09:44:44,430 INFO L87 Difference]: Start difference. First operand 44 states. Second operand 2 states. [2018-10-22 09:44:44,455 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-22 09:44:44,455 INFO L93 Difference]: Finished difference Result 56 states and 64 transitions. [2018-10-22 09:44:44,455 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-10-22 09:44:44,457 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 19 [2018-10-22 09:44:44,458 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-22 09:44:44,467 INFO L225 Difference]: With dead ends: 56 [2018-10-22 09:44:44,467 INFO L226 Difference]: Without dead ends: 33 [2018-10-22 09:44:44,472 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 09:44:44,489 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33 states. [2018-10-22 09:44:44,505 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33 to 33. [2018-10-22 09:44:44,506 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 33 states. [2018-10-22 09:44:44,508 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 33 states and 34 transitions. [2018-10-22 09:44:44,510 INFO L78 Accepts]: Start accepts. Automaton has 33 states and 34 transitions. Word has length 19 [2018-10-22 09:44:44,510 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-22 09:44:44,510 INFO L481 AbstractCegarLoop]: Abstraction has 33 states and 34 transitions. [2018-10-22 09:44:44,510 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-10-22 09:44:44,511 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 34 transitions. [2018-10-22 09:44:44,511 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2018-10-22 09:44:44,512 INFO L367 BasicCegarLoop]: Found error trace [2018-10-22 09:44:44,512 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] [2018-10-22 09:44:44,512 INFO L424 AbstractCegarLoop]: === Iteration 2 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-22 09:44:44,512 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-22 09:44:44,513 INFO L82 PathProgramCache]: Analyzing trace with hash 1866665468, now seen corresponding path program 1 times [2018-10-22 09:44:44,513 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-22 09:44:44,514 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-22 09:44:44,514 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-22 09:44:44,514 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-22 09:44:44,514 INFO L295 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-22 09:44:44,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-22 09:44:44,660 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 09:44:44,660 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-22 09:44:44,660 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-10-22 09:44:44,661 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-22 09:44:44,662 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-10-22 09:44:44,663 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-10-22 09:44:44,663 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2018-10-22 09:44:44,663 INFO L87 Difference]: Start difference. First operand 33 states and 34 transitions. Second operand 6 states. [2018-10-22 09:44:44,942 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-22 09:44:44,942 INFO L93 Difference]: Finished difference Result 40 states and 41 transitions. [2018-10-22 09:44:44,943 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-10-22 09:44:44,943 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 20 [2018-10-22 09:44:44,943 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-22 09:44:44,944 INFO L225 Difference]: With dead ends: 40 [2018-10-22 09:44:44,944 INFO L226 Difference]: Without dead ends: 35 [2018-10-22 09:44:44,946 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2018-10-22 09:44:44,947 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35 states. [2018-10-22 09:44:44,954 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35 to 35. [2018-10-22 09:44:44,954 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 35 states. [2018-10-22 09:44:44,956 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 35 states and 36 transitions. [2018-10-22 09:44:44,956 INFO L78 Accepts]: Start accepts. Automaton has 35 states and 36 transitions. Word has length 20 [2018-10-22 09:44:44,956 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-22 09:44:44,956 INFO L481 AbstractCegarLoop]: Abstraction has 35 states and 36 transitions. [2018-10-22 09:44:44,957 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-10-22 09:44:44,957 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states and 36 transitions. [2018-10-22 09:44:44,958 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2018-10-22 09:44:44,958 INFO L367 BasicCegarLoop]: Found error trace [2018-10-22 09:44:44,958 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, 1] [2018-10-22 09:44:44,959 INFO L424 AbstractCegarLoop]: === Iteration 3 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-22 09:44:44,959 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-22 09:44:44,959 INFO L82 PathProgramCache]: Analyzing trace with hash 797749119, now seen corresponding path program 1 times [2018-10-22 09:44:44,959 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-22 09:44:44,960 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-22 09:44:44,961 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-22 09:44:44,961 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-22 09:44:44,961 INFO L295 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-22 09:44:44,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-22 09:44:45,272 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-22 09:44:45,272 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-22 09:44:45,273 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2018-10-22 09:44:45,273 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-22 09:44:45,274 INFO L460 AbstractCegarLoop]: Interpolant automaton has 8 states [2018-10-22 09:44:45,274 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2018-10-22 09:44:45,274 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2018-10-22 09:44:45,275 INFO L87 Difference]: Start difference. First operand 35 states and 36 transitions. Second operand 8 states. [2018-10-22 09:44:45,586 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-22 09:44:45,586 INFO L93 Difference]: Finished difference Result 42 states and 44 transitions. [2018-10-22 09:44:45,587 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2018-10-22 09:44:45,587 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 31 [2018-10-22 09:44:45,588 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-22 09:44:45,588 INFO L225 Difference]: With dead ends: 42 [2018-10-22 09:44:45,589 INFO L226 Difference]: Without dead ends: 0 [2018-10-22 09:44:45,590 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=33, Invalid=99, Unknown=0, NotChecked=0, Total=132 [2018-10-22 09:44:45,590 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-10-22 09:44:45,590 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-10-22 09:44:45,590 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-10-22 09:44:45,591 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-10-22 09:44:45,591 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 31 [2018-10-22 09:44:45,591 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-22 09:44:45,591 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-10-22 09:44:45,591 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2018-10-22 09:44:45,591 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-10-22 09:44:45,592 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-10-22 09:44:45,596 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2018-10-22 09:44:45,658 INFO L428 ceAbstractionStarter]: At program point ULTIMATE.initFINAL(line -1) the Hoare annotation is: true [2018-10-22 09:44:45,658 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2018-10-22 09:44:45,658 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2018-10-22 09:44:45,658 INFO L428 ceAbstractionStarter]: At program point L-1(line -1) the Hoare annotation is: true [2018-10-22 09:44:45,659 INFO L428 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2018-10-22 09:44:45,659 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2018-10-22 09:44:45,659 INFO L425 ceAbstractionStarter]: For program point L27(line 27) no Hoare annotation was computed. [2018-10-22 09:44:45,659 INFO L425 ceAbstractionStarter]: For program point L27-1(line 27) no Hoare annotation was computed. [2018-10-22 09:44:45,659 INFO L425 ceAbstractionStarter]: For program point L27-2(line 27) no Hoare annotation was computed. [2018-10-22 09:44:45,659 INFO L425 ceAbstractionStarter]: For program point mainEXIT(lines 13 35) no Hoare annotation was computed. [2018-10-22 09:44:45,659 INFO L425 ceAbstractionStarter]: For program point L23(line 23) no Hoare annotation was computed. [2018-10-22 09:44:45,660 INFO L425 ceAbstractionStarter]: For program point L23-1(line 23) no Hoare annotation was computed. [2018-10-22 09:44:45,660 INFO L425 ceAbstractionStarter]: For program point L19(line 19) no Hoare annotation was computed. [2018-10-22 09:44:45,660 INFO L425 ceAbstractionStarter]: For program point L19-1(line 19) no Hoare annotation was computed. [2018-10-22 09:44:45,660 INFO L425 ceAbstractionStarter]: For program point L15(line 15) no Hoare annotation was computed. [2018-10-22 09:44:45,660 INFO L425 ceAbstractionStarter]: For program point L15-1(line 15) no Hoare annotation was computed. [2018-10-22 09:44:45,660 INFO L425 ceAbstractionStarter]: For program point L32(line 32) no Hoare annotation was computed. [2018-10-22 09:44:45,660 INFO L425 ceAbstractionStarter]: For program point L28(line 28) no Hoare annotation was computed. [2018-10-22 09:44:45,661 INFO L425 ceAbstractionStarter]: For program point L28-1(line 28) no Hoare annotation was computed. [2018-10-22 09:44:45,662 INFO L425 ceAbstractionStarter]: For program point L28-2(line 28) no Hoare annotation was computed. [2018-10-22 09:44:45,662 INFO L425 ceAbstractionStarter]: For program point L24(lines 24 29) no Hoare annotation was computed. [2018-10-22 09:44:45,662 INFO L421 ceAbstractionStarter]: At program point L24-2(lines 21 30) the Hoare annotation is: (or (< 100 main_~z~0) (<= main_~x~0 98)) [2018-10-22 09:44:45,662 INFO L425 ceAbstractionStarter]: For program point L20(line 20) no Hoare annotation was computed. [2018-10-22 09:44:45,662 INFO L425 ceAbstractionStarter]: For program point L20-1(line 20) no Hoare annotation was computed. [2018-10-22 09:44:45,663 INFO L425 ceAbstractionStarter]: For program point L16(line 16) no Hoare annotation was computed. [2018-10-22 09:44:45,663 INFO L425 ceAbstractionStarter]: For program point L16-1(line 16) no Hoare annotation was computed. [2018-10-22 09:44:45,663 INFO L425 ceAbstractionStarter]: For program point L16-2(line 16) no Hoare annotation was computed. [2018-10-22 09:44:45,663 INFO L425 ceAbstractionStarter]: For program point L25(line 25) no Hoare annotation was computed. [2018-10-22 09:44:45,663 INFO L425 ceAbstractionStarter]: For program point L25-1(line 25) no Hoare annotation was computed. [2018-10-22 09:44:45,663 INFO L425 ceAbstractionStarter]: For program point L25-2(line 25) no Hoare annotation was computed. [2018-10-22 09:44:45,663 INFO L425 ceAbstractionStarter]: For program point L21-1(lines 21 30) no Hoare annotation was computed. [2018-10-22 09:44:45,664 INFO L421 ceAbstractionStarter]: At program point L21-3(lines 21 30) the Hoare annotation is: (or (and (< 100 main_~z~0) (< 99 main_~x~0)) (and (<= main_~x~0 98) (<= main_~z~0 100))) [2018-10-22 09:44:45,664 INFO L425 ceAbstractionStarter]: For program point L17(line 17) no Hoare annotation was computed. [2018-10-22 09:44:45,664 INFO L425 ceAbstractionStarter]: For program point L17-1(line 17) no Hoare annotation was computed. [2018-10-22 09:44:45,664 INFO L425 ceAbstractionStarter]: For program point mainFINAL(lines 13 35) no Hoare annotation was computed. [2018-10-22 09:44:45,664 INFO L428 ceAbstractionStarter]: At program point mainENTRY(lines 13 35) the Hoare annotation is: true [2018-10-22 09:44:45,664 INFO L425 ceAbstractionStarter]: For program point L18(line 18) no Hoare annotation was computed. [2018-10-22 09:44:45,664 INFO L425 ceAbstractionStarter]: For program point L18-1(line 18) no Hoare annotation was computed. [2018-10-22 09:44:45,665 INFO L428 ceAbstractionStarter]: At program point __VERIFIER_assertENTRY(lines 4 9) the Hoare annotation is: true [2018-10-22 09:44:45,665 INFO L425 ceAbstractionStarter]: For program point __VERIFIER_assertEXIT(lines 4 9) no Hoare annotation was computed. [2018-10-22 09:44:45,665 INFO L425 ceAbstractionStarter]: For program point __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION(line 6) no Hoare annotation was computed. [2018-10-22 09:44:45,665 INFO L425 ceAbstractionStarter]: For program point L6(line 6) no Hoare annotation was computed. [2018-10-22 09:44:45,665 INFO L425 ceAbstractionStarter]: For program point L5(lines 5 7) no Hoare annotation was computed. [2018-10-22 09:44:45,665 INFO L425 ceAbstractionStarter]: For program point L5-2(lines 4 9) no Hoare annotation was computed. [2018-10-22 09:44:45,678 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.10 09:44:45 BoogieIcfgContainer [2018-10-22 09:44:45,678 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-10-22 09:44:45,679 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-10-22 09:44:45,679 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-10-22 09:44:45,679 INFO L276 PluginConnector]: Witness Printer initialized [2018-10-22 09:44:45,680 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 09:44:44" (3/4) ... [2018-10-22 09:44:45,684 INFO L144 WitnessPrinter]: Generating witness for correct program [2018-10-22 09:44:45,690 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure ULTIMATE.init [2018-10-22 09:44:45,690 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure main [2018-10-22 09:44:45,691 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure __VERIFIER_assert [2018-10-22 09:44:45,696 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 11 nodes and edges [2018-10-22 09:44:45,696 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2018-10-22 09:44:45,696 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2018-10-22 09:44:45,763 INFO L145 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/witness.graphml [2018-10-22 09:44:45,763 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-10-22 09:44:45,765 INFO L168 Benchmark]: Toolchain (without parser) took 2623.40 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 153.1 MB). Free memory was 953.2 MB in the beginning and 1.1 GB in the end (delta: -113.2 MB). Peak memory consumption was 39.9 MB. Max. memory is 11.5 GB. [2018-10-22 09:44:45,766 INFO L168 Benchmark]: CDTParser took 0.21 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 09:44:45,767 INFO L168 Benchmark]: CACSL2BoogieTranslator took 313.44 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 09:44:45,768 INFO L168 Benchmark]: Boogie Procedure Inliner took 24.76 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 09:44:45,768 INFO L168 Benchmark]: Boogie Preprocessor took 27.98 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 09:44:45,769 INFO L168 Benchmark]: RCFGBuilder took 643.56 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 153.1 MB). Free memory was 942.5 MB in the beginning and 1.1 GB in the end (delta: -184.7 MB). Peak memory consumption was 26.4 MB. Max. memory is 11.5 GB. [2018-10-22 09:44:45,770 INFO L168 Benchmark]: TraceAbstraction took 1523.55 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 60.7 MB). Peak memory consumption was 60.7 MB. Max. memory is 11.5 GB. [2018-10-22 09:44:45,770 INFO L168 Benchmark]: Witness Printer took 84.77 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2018-10-22 09:44:45,774 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21 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 313.44 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 24.76 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 27.98 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 643.56 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 153.1 MB). Free memory was 942.5 MB in the beginning and 1.1 GB in the end (delta: -184.7 MB). Peak memory consumption was 26.4 MB. Max. memory is 11.5 GB. * TraceAbstraction took 1523.55 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 60.7 MB). Peak memory consumption was 60.7 MB. Max. memory is 11.5 GB. * Witness Printer took 84.77 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 6]: 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: 21]: Loop Invariant Derived loop invariant: 100 < z || x <= 98 - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 44 locations, 1 error locations. SAFE Result, 1.4s OverallTime, 3 OverallIterations, 2 TraceHistogramMax, 0.6s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 111 SDtfs, 32 SDslu, 236 SDs, 0 SdLazy, 87 SolverSat, 3 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.3s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 22 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=44occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s AbstIntTime, 0 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 3 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 7 LocationsWithAnnotation, 9 PreInvPairs, 12 NumberOfFragments, 27 HoareAnnotationTreeSize, 9 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 7 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.4s InterpolantComputationTime, 70 NumberOfCodeBlocks, 70 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 67 ConstructedInterpolants, 0 QuantifiedInterpolants, 2653 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 3 InterpolantComputations, 3 PerfectInterpolantSequences, 2/2 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...