./Ultimate.py --spec /storage/repos/svcomp/c/properties/unreach-call.prp --file /storage/repos/svcomp/c/float-benchs/zonotope_tight_true-unreach-call_true-termination.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 2e94e6aa Calling Ultimate with: java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx12G -Xms1G -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i /storage/repos/svcomp/c/float-benchs/zonotope_tight_true-unreach-call_true-termination.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-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 Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 7de8352890f1d55270cdee8daa00c3bfaf4226ea ....................................................................................................................................................................................................................... Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis Calling Ultimate with: java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx12G -Xms1G -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i /storage/repos/svcomp/c/float-benchs/zonotope_tight_true-unreach-call_true-termination.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-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 Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 7de8352890f1d55270cdee8daa00c3bfaf4226ea ................................................................................................................................................................................................................................................................................................................. Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.24-2e94e6a [2018-12-31 03:34:05,217 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-12-31 03:34:05,220 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-12-31 03:34:05,235 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-12-31 03:34:05,235 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-12-31 03:34:05,236 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-12-31 03:34:05,238 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-12-31 03:34:05,240 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-12-31 03:34:05,242 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-12-31 03:34:05,243 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-12-31 03:34:05,244 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-12-31 03:34:05,244 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-12-31 03:34:05,246 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-12-31 03:34:05,247 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-12-31 03:34:05,248 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-12-31 03:34:05,249 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-12-31 03:34:05,250 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-12-31 03:34:05,252 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-12-31 03:34:05,255 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-12-31 03:34:05,257 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-12-31 03:34:05,258 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-12-31 03:34:05,259 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-12-31 03:34:05,262 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-12-31 03:34:05,263 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-12-31 03:34:05,263 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-12-31 03:34:05,264 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-12-31 03:34:05,265 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-12-31 03:34:05,266 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-12-31 03:34:05,267 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-12-31 03:34:05,269 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-12-31 03:34:05,269 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-12-31 03:34:05,270 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-12-31 03:34:05,271 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-12-31 03:34:05,271 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-12-31 03:34:05,272 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-12-31 03:34:05,273 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-12-31 03:34:05,273 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2018-12-31 03:34:05,291 INFO L110 SettingsManager]: Loading preferences was successful [2018-12-31 03:34:05,291 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-12-31 03:34:05,296 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-12-31 03:34:05,296 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-12-31 03:34:05,296 INFO L133 SettingsManager]: * Use SBE=true [2018-12-31 03:34:05,296 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-12-31 03:34:05,300 INFO L133 SettingsManager]: * sizeof long=4 [2018-12-31 03:34:05,300 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-12-31 03:34:05,300 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-12-31 03:34:05,300 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-12-31 03:34:05,301 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-12-31 03:34:05,301 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-12-31 03:34:05,301 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-12-31 03:34:05,301 INFO L133 SettingsManager]: * sizeof long double=12 [2018-12-31 03:34:05,301 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-12-31 03:34:05,301 INFO L133 SettingsManager]: * Use constant arrays=true [2018-12-31 03:34:05,302 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-12-31 03:34:05,302 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-12-31 03:34:05,302 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-12-31 03:34:05,302 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-12-31 03:34:05,302 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-12-31 03:34:05,302 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-12-31 03:34:05,306 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-12-31 03:34:05,306 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-12-31 03:34:05,306 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-12-31 03:34:05,306 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-12-31 03:34:05,307 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-12-31 03:34:05,307 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-12-31 03:34:05,308 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true 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/UAutomizer-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 -> Automizer 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 -> 7de8352890f1d55270cdee8daa00c3bfaf4226ea [2018-12-31 03:34:05,379 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-12-31 03:34:05,401 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-12-31 03:34:05,409 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-12-31 03:34:05,411 INFO L271 PluginConnector]: Initializing CDTParser... [2018-12-31 03:34:05,411 INFO L276 PluginConnector]: CDTParser initialized [2018-12-31 03:34:05,412 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/svcomp/c/float-benchs/zonotope_tight_true-unreach-call_true-termination.c [2018-12-31 03:34:05,469 INFO L221 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/96db73a43/b8b0fcbd56294428bcb643bb484e2a76/FLAGd79fd26d5 [2018-12-31 03:34:05,908 INFO L307 CDTParser]: Found 1 translation units. [2018-12-31 03:34:05,909 INFO L161 CDTParser]: Scanning /storage/repos/svcomp/c/float-benchs/zonotope_tight_true-unreach-call_true-termination.c [2018-12-31 03:34:05,915 INFO L355 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/96db73a43/b8b0fcbd56294428bcb643bb484e2a76/FLAGd79fd26d5 [2018-12-31 03:34:06,269 INFO L363 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/96db73a43/b8b0fcbd56294428bcb643bb484e2a76 [2018-12-31 03:34:06,273 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-12-31 03:34:06,275 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-12-31 03:34:06,276 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-12-31 03:34:06,276 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-12-31 03:34:06,280 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-12-31 03:34:06,281 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.12 03:34:06" (1/1) ... [2018-12-31 03:34:06,287 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1526b417 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.12 03:34:06, skipping insertion in model container [2018-12-31 03:34:06,289 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.12 03:34:06" (1/1) ... [2018-12-31 03:34:06,297 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-12-31 03:34:06,317 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-12-31 03:34:06,569 INFO L204 PostProcessor]: Analyzing one entry point: main [2018-12-31 03:34:06,574 INFO L191 MainTranslator]: Completed pre-run [2018-12-31 03:34:06,599 INFO L204 PostProcessor]: Analyzing one entry point: main [2018-12-31 03:34:06,619 INFO L195 MainTranslator]: Completed translation [2018-12-31 03:34:06,620 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.12 03:34:06 WrapperNode [2018-12-31 03:34:06,621 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-12-31 03:34:06,622 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-12-31 03:34:06,622 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-12-31 03:34:06,622 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-12-31 03:34:06,633 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.12 03:34:06" (1/1) ... [2018-12-31 03:34:06,642 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.12 03:34:06" (1/1) ... [2018-12-31 03:34:06,668 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-12-31 03:34:06,669 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-12-31 03:34:06,669 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-12-31 03:34:06,669 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-12-31 03:34:06,681 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.12 03:34:06" (1/1) ... [2018-12-31 03:34:06,681 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.12 03:34:06" (1/1) ... [2018-12-31 03:34:06,682 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.12 03:34:06" (1/1) ... [2018-12-31 03:34:06,682 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.12 03:34:06" (1/1) ... [2018-12-31 03:34:06,690 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.12 03:34:06" (1/1) ... [2018-12-31 03:34:06,694 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.12 03:34:06" (1/1) ... [2018-12-31 03:34:06,694 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.12 03:34:06" (1/1) ... [2018-12-31 03:34:06,696 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-12-31 03:34:06,702 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-12-31 03:34:06,703 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-12-31 03:34:06,703 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-12-31 03:34:06,704 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.12 03:34:06" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-12-31 03:34:06,828 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-12-31 03:34:06,828 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-12-31 03:34:06,999 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-12-31 03:34:07,000 INFO L280 CfgBuilder]: Removed 6 assue(true) statements. [2018-12-31 03:34:07,000 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.12 03:34:07 BoogieIcfgContainer [2018-12-31 03:34:07,000 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-12-31 03:34:07,001 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-12-31 03:34:07,001 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-12-31 03:34:07,004 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-12-31 03:34:07,005 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 31.12 03:34:06" (1/3) ... [2018-12-31 03:34:07,005 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@31f672df and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 31.12 03:34:07, skipping insertion in model container [2018-12-31 03:34:07,006 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.12 03:34:06" (2/3) ... [2018-12-31 03:34:07,006 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@31f672df and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 31.12 03:34:07, skipping insertion in model container [2018-12-31 03:34:07,006 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.12 03:34:07" (3/3) ... [2018-12-31 03:34:07,008 INFO L112 eAbstractionObserver]: Analyzing ICFG zonotope_tight_true-unreach-call_true-termination.c [2018-12-31 03:34:07,016 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-12-31 03:34:07,023 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-12-31 03:34:07,038 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-12-31 03:34:07,068 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-12-31 03:34:07,068 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-12-31 03:34:07,069 INFO L383 AbstractCegarLoop]: Hoare is true [2018-12-31 03:34:07,069 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-12-31 03:34:07,069 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-12-31 03:34:07,069 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-12-31 03:34:07,069 INFO L387 AbstractCegarLoop]: Difference is false [2018-12-31 03:34:07,069 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-12-31 03:34:07,069 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-12-31 03:34:07,083 INFO L276 IsEmpty]: Start isEmpty. Operand 10 states. [2018-12-31 03:34:07,089 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2018-12-31 03:34:07,090 INFO L394 BasicCegarLoop]: Found error trace [2018-12-31 03:34:07,091 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2018-12-31 03:34:07,093 INFO L423 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-31 03:34:07,099 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2018-12-31 03:34:07,099 INFO L82 PathProgramCache]: Analyzing trace with hash 29679878, now seen corresponding path program 1 times [2018-12-31 03:34:07,102 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-31 03:34:07,102 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-31 03:34:07,156 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-31 03:34:07,156 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-31 03:34:07,156 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-31 03:34:07,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-31 03:34:07,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-31 03:34:07,220 INFO L469 BasicCegarLoop]: Counterexample might be feasible [2018-12-31 03:34:07,239 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 31.12 03:34:07 BoogieIcfgContainer [2018-12-31 03:34:07,239 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-12-31 03:34:07,239 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-12-31 03:34:07,240 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-12-31 03:34:07,240 INFO L276 PluginConnector]: Witness Printer initialized [2018-12-31 03:34:07,240 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.12 03:34:07" (3/4) ... [2018-12-31 03:34:07,245 INFO L147 WitnessPrinter]: No result that supports witness generation found [2018-12-31 03:34:07,245 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-12-31 03:34:07,246 INFO L168 Benchmark]: Toolchain (without parser) took 972.15 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 133.7 MB). Free memory was 946.0 MB in the beginning and 1.1 GB in the end (delta: -157.2 MB). There was no memory consumed. Max. memory is 11.5 GB. [2018-12-31 03:34:07,248 INFO L168 Benchmark]: CDTParser took 0.20 ms. Allocated memory is still 1.0 GB. Free memory is still 972.8 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-31 03:34:07,249 INFO L168 Benchmark]: CACSL2BoogieTranslator took 345.12 ms. Allocated memory is still 1.0 GB. Free memory was 946.0 MB in the beginning and 935.3 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2018-12-31 03:34:07,250 INFO L168 Benchmark]: Boogie Procedure Inliner took 46.54 ms. Allocated memory is still 1.0 GB. Free memory is still 935.3 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-31 03:34:07,251 INFO L168 Benchmark]: Boogie Preprocessor took 33.06 ms. Allocated memory is still 1.0 GB. Free memory is still 935.3 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-31 03:34:07,251 INFO L168 Benchmark]: RCFGBuilder took 298.63 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 133.7 MB). Free memory was 929.9 MB in the beginning and 1.1 GB in the end (delta: -180.0 MB). Peak memory consumption was 13.0 MB. Max. memory is 11.5 GB. [2018-12-31 03:34:07,252 INFO L168 Benchmark]: TraceAbstraction took 237.92 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: 6.6 MB). Peak memory consumption was 6.6 MB. Max. memory is 11.5 GB. [2018-12-31 03:34:07,253 INFO L168 Benchmark]: Witness Printer took 5.40 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. [2018-12-31 03:34:07,258 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 972.8 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 345.12 ms. Allocated memory is still 1.0 GB. Free memory was 946.0 MB in the beginning and 935.3 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 46.54 ms. Allocated memory is still 1.0 GB. Free memory is still 935.3 MB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 33.06 ms. Allocated memory is still 1.0 GB. Free memory is still 935.3 MB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 298.63 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 133.7 MB). Free memory was 929.9 MB in the beginning and 1.1 GB in the end (delta: -180.0 MB). Peak memory consumption was 13.0 MB. Max. memory is 11.5 GB. * TraceAbstraction took 237.92 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: 6.6 MB). Peak memory consumption was 6.6 MB. Max. memory is 11.5 GB. * Witness Printer took 5.40 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: - UnprovableResult [Line: 9]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: overapproximation of someBinaryDOUBLEComparisonOperation at line 22, overapproximation of someBinaryArithmeticDOUBLEoperation at line 19. Possible FailurePath: [L13] double x,y; [L15] x = __VERIFIER_nondet_double() [L18] y = x*x - x [L19] COND TRUE y >= 0 [L19] y = x / 10. [L9] COND TRUE !(cond) [L9] __VERIFIER_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 10 locations, 1 error locations. UNSAFE Result, 0.1s OverallTime, 1 OverallIterations, 1 TraceHistogramMax, 0.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: No data available, PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=10occurred 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: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 5 NumberOfCodeBlocks, 5 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces Received shutdown request... ### Bit-precise run ### This is Ultimate 0.1.24-2e94e6a [2018-12-31 03:34:09,641 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-12-31 03:34:09,643 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-12-31 03:34:09,662 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-12-31 03:34:09,663 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-12-31 03:34:09,664 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-12-31 03:34:09,665 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-12-31 03:34:09,667 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-12-31 03:34:09,670 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-12-31 03:34:09,670 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-12-31 03:34:09,673 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-12-31 03:34:09,673 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-12-31 03:34:09,674 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-12-31 03:34:09,675 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-12-31 03:34:09,679 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-12-31 03:34:09,679 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-12-31 03:34:09,680 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-12-31 03:34:09,687 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-12-31 03:34:09,689 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-12-31 03:34:09,691 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-12-31 03:34:09,693 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-12-31 03:34:09,694 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-12-31 03:34:09,700 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-12-31 03:34:09,700 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-12-31 03:34:09,700 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-12-31 03:34:09,702 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-12-31 03:34:09,703 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-12-31 03:34:09,706 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-12-31 03:34:09,707 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-12-31 03:34:09,708 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-12-31 03:34:09,708 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-12-31 03:34:09,708 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-12-31 03:34:09,709 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-12-31 03:34:09,709 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-12-31 03:34:09,710 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-12-31 03:34:09,713 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-12-31 03:34:09,713 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2018-12-31 03:34:09,735 INFO L110 SettingsManager]: Loading preferences was successful [2018-12-31 03:34:09,735 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-12-31 03:34:09,737 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-12-31 03:34:09,737 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-12-31 03:34:09,738 INFO L133 SettingsManager]: * Use SBE=true [2018-12-31 03:34:09,738 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-12-31 03:34:09,738 INFO L133 SettingsManager]: * sizeof long=4 [2018-12-31 03:34:09,738 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-12-31 03:34:09,738 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-12-31 03:34:09,739 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-12-31 03:34:09,739 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-12-31 03:34:09,739 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-12-31 03:34:09,739 INFO L133 SettingsManager]: * Use bitvectors instead of ints=true [2018-12-31 03:34:09,739 INFO L133 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2018-12-31 03:34:09,739 INFO L133 SettingsManager]: * sizeof long double=12 [2018-12-31 03:34:09,741 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-12-31 03:34:09,741 INFO L133 SettingsManager]: * Use constant arrays=true [2018-12-31 03:34:09,741 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-12-31 03:34:09,742 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-12-31 03:34:09,742 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-12-31 03:34:09,742 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-12-31 03:34:09,742 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-12-31 03:34:09,742 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-12-31 03:34:09,743 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-12-31 03:34:09,744 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-12-31 03:34:09,744 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-12-31 03:34:09,744 INFO L133 SettingsManager]: * Trace refinement strategy=WOLF [2018-12-31 03:34:09,744 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-12-31 03:34:09,744 INFO L133 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2018-12-31 03:34:09,745 INFO L133 SettingsManager]: * Logic for external solver=AUFBV [2018-12-31 03:34:09,745 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true 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/UAutomizer-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 -> Automizer 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 -> 7de8352890f1d55270cdee8daa00c3bfaf4226ea [2018-12-31 03:34:09,782 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-12-31 03:34:09,797 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-12-31 03:34:09,801 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-12-31 03:34:09,803 INFO L271 PluginConnector]: Initializing CDTParser... [2018-12-31 03:34:09,803 INFO L276 PluginConnector]: CDTParser initialized [2018-12-31 03:34:09,804 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/svcomp/c/float-benchs/zonotope_tight_true-unreach-call_true-termination.c [2018-12-31 03:34:09,865 INFO L221 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/791c8383f/8401c1c7773e4bab93b8d8f4181f05c3/FLAG0226aeaa5 [2018-12-31 03:34:10,319 INFO L307 CDTParser]: Found 1 translation units. [2018-12-31 03:34:10,322 INFO L161 CDTParser]: Scanning /storage/repos/svcomp/c/float-benchs/zonotope_tight_true-unreach-call_true-termination.c [2018-12-31 03:34:10,332 INFO L355 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/791c8383f/8401c1c7773e4bab93b8d8f4181f05c3/FLAG0226aeaa5 [2018-12-31 03:34:10,662 INFO L363 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/791c8383f/8401c1c7773e4bab93b8d8f4181f05c3 [2018-12-31 03:34:10,666 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-12-31 03:34:10,667 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-12-31 03:34:10,668 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-12-31 03:34:10,669 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-12-31 03:34:10,673 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-12-31 03:34:10,673 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.12 03:34:10" (1/1) ... [2018-12-31 03:34:10,676 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@9ea98bd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.12 03:34:10, skipping insertion in model container [2018-12-31 03:34:10,677 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.12 03:34:10" (1/1) ... [2018-12-31 03:34:10,685 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-12-31 03:34:10,703 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-12-31 03:34:10,904 INFO L204 PostProcessor]: Analyzing one entry point: main [2018-12-31 03:34:10,914 INFO L191 MainTranslator]: Completed pre-run [2018-12-31 03:34:10,937 INFO L204 PostProcessor]: Analyzing one entry point: main [2018-12-31 03:34:10,958 INFO L195 MainTranslator]: Completed translation [2018-12-31 03:34:10,959 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.12 03:34:10 WrapperNode [2018-12-31 03:34:10,959 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-12-31 03:34:10,960 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-12-31 03:34:10,960 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-12-31 03:34:10,960 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-12-31 03:34:10,972 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.12 03:34:10" (1/1) ... [2018-12-31 03:34:10,982 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.12 03:34:10" (1/1) ... [2018-12-31 03:34:11,008 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-12-31 03:34:11,009 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-12-31 03:34:11,009 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-12-31 03:34:11,009 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-12-31 03:34:11,020 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.12 03:34:10" (1/1) ... [2018-12-31 03:34:11,020 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.12 03:34:10" (1/1) ... [2018-12-31 03:34:11,023 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.12 03:34:10" (1/1) ... [2018-12-31 03:34:11,025 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.12 03:34:10" (1/1) ... [2018-12-31 03:34:11,034 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.12 03:34:10" (1/1) ... [2018-12-31 03:34:11,040 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.12 03:34:10" (1/1) ... [2018-12-31 03:34:11,042 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.12 03:34:10" (1/1) ... [2018-12-31 03:34:11,049 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-12-31 03:34:11,052 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-12-31 03:34:11,052 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-12-31 03:34:11,052 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-12-31 03:34:11,053 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.12 03:34:10" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-12-31 03:34:11,211 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-12-31 03:34:11,212 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-12-31 03:34:14,304 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-12-31 03:34:14,304 INFO L280 CfgBuilder]: Removed 6 assue(true) statements. [2018-12-31 03:34:14,305 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.12 03:34:14 BoogieIcfgContainer [2018-12-31 03:34:14,305 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-12-31 03:34:14,306 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-12-31 03:34:14,307 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-12-31 03:34:14,310 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-12-31 03:34:14,311 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 31.12 03:34:10" (1/3) ... [2018-12-31 03:34:14,312 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5b0d1e7a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 31.12 03:34:14, skipping insertion in model container [2018-12-31 03:34:14,312 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.12 03:34:10" (2/3) ... [2018-12-31 03:34:14,312 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5b0d1e7a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 31.12 03:34:14, skipping insertion in model container [2018-12-31 03:34:14,313 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.12 03:34:14" (3/3) ... [2018-12-31 03:34:14,316 INFO L112 eAbstractionObserver]: Analyzing ICFG zonotope_tight_true-unreach-call_true-termination.c [2018-12-31 03:34:14,326 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-12-31 03:34:14,335 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-12-31 03:34:14,354 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-12-31 03:34:14,386 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-12-31 03:34:14,387 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-12-31 03:34:14,387 INFO L383 AbstractCegarLoop]: Hoare is true [2018-12-31 03:34:14,387 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-12-31 03:34:14,388 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-12-31 03:34:14,388 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-12-31 03:34:14,388 INFO L387 AbstractCegarLoop]: Difference is false [2018-12-31 03:34:14,388 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-12-31 03:34:14,389 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-12-31 03:34:14,406 INFO L276 IsEmpty]: Start isEmpty. Operand 10 states. [2018-12-31 03:34:14,412 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2018-12-31 03:34:14,412 INFO L394 BasicCegarLoop]: Found error trace [2018-12-31 03:34:14,413 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2018-12-31 03:34:14,415 INFO L423 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-31 03:34:14,421 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2018-12-31 03:34:14,422 INFO L82 PathProgramCache]: Analyzing trace with hash 29679878, now seen corresponding path program 1 times [2018-12-31 03:34:14,426 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-12-31 03:34:14,426 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 2 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with mathsat -unsat_core_generation=3 [2018-12-31 03:34:14,433 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-31 03:34:14,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-31 03:34:15,009 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-31 03:34:17,341 WARN L838 $PredicateComparison]: unable to prove that (exists ((ULTIMATE.start_main_~x~0 (_ FloatingPoint 11 53))) (let ((.cse0 ((_ to_fp 11 53) roundNearestTiesToEven 10.0))) (and (= (fp.div roundNearestTiesToEven ULTIMATE.start_main_~x~0 .cse0) c_ULTIMATE.start_main_~y~0) (fp.geq ULTIMATE.start_main_~x~0 (_ +zero 11 53)) (fp.leq ULTIMATE.start_main_~x~0 .cse0)))) is different from false [2018-12-31 03:34:19,549 WARN L860 $PredicateComparison]: unable to prove that (exists ((ULTIMATE.start_main_~x~0 (_ FloatingPoint 11 53))) (let ((.cse0 ((_ to_fp 11 53) roundNearestTiesToEven 10.0))) (and (= (fp.div roundNearestTiesToEven ULTIMATE.start_main_~x~0 .cse0) c_ULTIMATE.start_main_~y~0) (fp.geq ULTIMATE.start_main_~x~0 (_ +zero 11 53)) (fp.leq ULTIMATE.start_main_~x~0 .cse0)))) is different from true [2018-12-31 03:34:37,910 WARN L838 $PredicateComparison]: unable to prove that (let ((.cse1 (= (_ bv0 32) c_ULTIMATE.start___VERIFIER_assert_~cond))) (or (and (exists ((v_prenex_1 (_ FloatingPoint 11 53))) (let ((.cse0 ((_ to_fp 11 53) roundNearestTiesToEven 10.0))) (and (fp.geq v_prenex_1 (_ +zero 11 53)) (fp.leq v_prenex_1 .cse0) (not (fp.leq (fp.div roundNearestTiesToEven v_prenex_1 .cse0) ((_ to_fp 11 53) roundNearestTiesToEven 4.0)))))) .cse1) (and .cse1 (exists ((ULTIMATE.start_main_~x~0 (_ FloatingPoint 11 53))) (let ((.cse2 ((_ to_fp 11 53) roundNearestTiesToEven 10.0))) (and (not (fp.geq (fp.div roundNearestTiesToEven ULTIMATE.start_main_~x~0 .cse2) (_ +zero 11 53))) (fp.geq ULTIMATE.start_main_~x~0 (_ +zero 11 53)) (fp.leq ULTIMATE.start_main_~x~0 .cse2))))) (and (exists ((v_prenex_3 (_ FloatingPoint 11 53))) (let ((.cse4 ((_ to_fp 11 53) roundNearestTiesToEven 10.0))) (let ((.cse3 (fp.div roundNearestTiesToEven v_prenex_3 .cse4))) (and (fp.geq .cse3 (_ +zero 11 53)) (fp.leq v_prenex_3 .cse4) (fp.leq .cse3 ((_ to_fp 11 53) roundNearestTiesToEven 4.0)) (fp.geq v_prenex_3 (_ +zero 11 53)))))) (= (_ bv1 32) c_ULTIMATE.start___VERIFIER_assert_~cond)))) is different from false [2018-12-31 03:34:49,366 WARN L838 $PredicateComparison]: unable to prove that (or (exists ((v_prenex_1 (_ FloatingPoint 11 53))) (let ((.cse0 ((_ to_fp 11 53) roundNearestTiesToEven 10.0))) (and (fp.geq v_prenex_1 (_ +zero 11 53)) (fp.leq v_prenex_1 .cse0) (not (fp.leq (fp.div roundNearestTiesToEven v_prenex_1 .cse0) ((_ to_fp 11 53) roundNearestTiesToEven 4.0)))))) (exists ((ULTIMATE.start_main_~x~0 (_ FloatingPoint 11 53))) (let ((.cse1 ((_ to_fp 11 53) roundNearestTiesToEven 10.0))) (and (not (fp.geq (fp.div roundNearestTiesToEven ULTIMATE.start_main_~x~0 .cse1) (_ +zero 11 53))) (fp.geq ULTIMATE.start_main_~x~0 (_ +zero 11 53)) (fp.leq ULTIMATE.start_main_~x~0 .cse1))))) is different from false [2018-12-31 03:34:51,602 WARN L860 $PredicateComparison]: unable to prove that (or (exists ((v_prenex_1 (_ FloatingPoint 11 53))) (let ((.cse0 ((_ to_fp 11 53) roundNearestTiesToEven 10.0))) (and (fp.geq v_prenex_1 (_ +zero 11 53)) (fp.leq v_prenex_1 .cse0) (not (fp.leq (fp.div roundNearestTiesToEven v_prenex_1 .cse0) ((_ to_fp 11 53) roundNearestTiesToEven 4.0)))))) (exists ((ULTIMATE.start_main_~x~0 (_ FloatingPoint 11 53))) (let ((.cse1 ((_ to_fp 11 53) roundNearestTiesToEven 10.0))) (and (not (fp.geq (fp.div roundNearestTiesToEven ULTIMATE.start_main_~x~0 .cse1) (_ +zero 11 53))) (fp.geq ULTIMATE.start_main_~x~0 (_ +zero 11 53)) (fp.leq ULTIMATE.start_main_~x~0 .cse1))))) is different from true [2018-12-31 03:34:51,608 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-31 03:34:51,608 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-12-31 03:34:51,631 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-31 03:34:51,632 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-12-31 03:34:51,637 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-12-31 03:34:51,651 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-12-31 03:34:51,652 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=4, Unknown=5, NotChecked=12, Total=30 [2018-12-31 03:34:51,654 INFO L87 Difference]: Start difference. First operand 10 states. Second operand 6 states. [2018-12-31 03:34:55,854 WARN L838 $PredicateComparison]: unable to prove that (and (exists ((ULTIMATE.start_main_~x~0 (_ FloatingPoint 11 53))) (let ((.cse0 ((_ to_fp 11 53) roundNearestTiesToEven 10.0))) (and (= (fp.div roundNearestTiesToEven ULTIMATE.start_main_~x~0 .cse0) c_ULTIMATE.start_main_~y~0) (fp.geq ULTIMATE.start_main_~x~0 (_ +zero 11 53)) (fp.leq ULTIMATE.start_main_~x~0 .cse0)))) (fp.geq c_ULTIMATE.start_main_~x~0 (_ +zero 11 53)) (fp.leq c_ULTIMATE.start_main_~x~0 ((_ to_fp 11 53) roundNearestTiesToEven 10.0))) is different from false [2018-12-31 03:34:57,965 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-31 03:34:57,966 INFO L93 Difference]: Finished difference Result 18 states and 19 transitions. [2018-12-31 03:34:58,012 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-12-31 03:34:58,014 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 5 [2018-12-31 03:34:58,014 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-31 03:34:58,026 INFO L225 Difference]: With dead ends: 18 [2018-12-31 03:34:58,026 INFO L226 Difference]: Without dead ends: 6 [2018-12-31 03:34:58,030 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 4 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 14.4s TimeCoverageRelationStatistics Valid=11, Invalid=5, Unknown=6, NotChecked=20, Total=42 [2018-12-31 03:34:58,044 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6 states. [2018-12-31 03:34:58,053 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6 to 6. [2018-12-31 03:34:58,054 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2018-12-31 03:34:58,055 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 5 transitions. [2018-12-31 03:34:58,056 INFO L78 Accepts]: Start accepts. Automaton has 6 states and 5 transitions. Word has length 5 [2018-12-31 03:34:58,057 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-31 03:34:58,057 INFO L480 AbstractCegarLoop]: Abstraction has 6 states and 5 transitions. [2018-12-31 03:34:58,057 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-12-31 03:34:58,057 INFO L276 IsEmpty]: Start isEmpty. Operand 6 states and 5 transitions. [2018-12-31 03:34:58,057 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2018-12-31 03:34:58,058 INFO L394 BasicCegarLoop]: Found error trace [2018-12-31 03:34:58,058 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2018-12-31 03:34:58,058 INFO L423 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-31 03:34:58,059 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2018-12-31 03:34:58,060 INFO L82 PathProgramCache]: Analyzing trace with hash 29739460, now seen corresponding path program 1 times [2018-12-31 03:34:58,060 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-12-31 03:34:58,060 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 3 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2018-12-31 03:34:58,068 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY Waiting until toolchain timeout for monitored process 3 with mathsat -unsat_core_generation=3 [2018-12-31 03:34:58,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-31 03:34:58,617 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-31 03:35:00,668 WARN L838 $PredicateComparison]: unable to prove that (and (= (fp.sub roundNearestTiesToEven (fp.mul roundNearestTiesToEven c_ULTIMATE.start_main_~x~0 c_ULTIMATE.start_main_~x~0) c_ULTIMATE.start_main_~x~0) c_ULTIMATE.start_main_~y~0) (fp.geq c_ULTIMATE.start_main_~x~0 (_ +zero 11 53)) (fp.leq c_ULTIMATE.start_main_~x~0 ((_ to_fp 11 53) roundNearestTiesToEven 10.0))) is different from false [2018-12-31 03:35:03,556 WARN L838 $PredicateComparison]: unable to prove that (exists ((ULTIMATE.start_main_~x~0 (_ FloatingPoint 11 53))) (let ((.cse0 (fp.mul roundNearestTiesToEven ULTIMATE.start_main_~x~0 ULTIMATE.start_main_~x~0))) (and (not (fp.geq (fp.sub roundNearestTiesToEven .cse0 ULTIMATE.start_main_~x~0) ((_ to_fp 11 53) roundNearestTiesToEven (_ bv0 32)))) (fp.geq ULTIMATE.start_main_~x~0 (_ +zero 11 53)) (fp.leq ULTIMATE.start_main_~x~0 ((_ to_fp 11 53) roundNearestTiesToEven 10.0)) (= (fp.add roundNearestTiesToEven .cse0 ((_ to_fp 11 53) roundNearestTiesToEven 2.0)) c_ULTIMATE.start_main_~y~0)))) is different from false [2018-12-31 03:35:05,620 WARN L860 $PredicateComparison]: unable to prove that (exists ((ULTIMATE.start_main_~x~0 (_ FloatingPoint 11 53))) (let ((.cse0 (fp.mul roundNearestTiesToEven ULTIMATE.start_main_~x~0 ULTIMATE.start_main_~x~0))) (and (not (fp.geq (fp.sub roundNearestTiesToEven .cse0 ULTIMATE.start_main_~x~0) ((_ to_fp 11 53) roundNearestTiesToEven (_ bv0 32)))) (fp.geq ULTIMATE.start_main_~x~0 (_ +zero 11 53)) (fp.leq ULTIMATE.start_main_~x~0 ((_ to_fp 11 53) roundNearestTiesToEven 10.0)) (= (fp.add roundNearestTiesToEven .cse0 ((_ to_fp 11 53) roundNearestTiesToEven 2.0)) c_ULTIMATE.start_main_~y~0)))) is different from true [2018-12-31 03:35:22,272 WARN L838 $PredicateComparison]: unable to prove that (let ((.cse1 (= (_ bv0 32) c_ULTIMATE.start___VERIFIER_assert_~cond))) (or (and (exists ((v_prenex_5 (_ FloatingPoint 11 53))) (let ((.cse0 (fp.mul roundNearestTiesToEven v_prenex_5 v_prenex_5))) (and (not (fp.leq (fp.add roundNearestTiesToEven .cse0 ((_ to_fp 11 53) roundNearestTiesToEven 2.0)) ((_ to_fp 11 53) roundNearestTiesToEven 4.0))) (fp.leq v_prenex_5 ((_ to_fp 11 53) roundNearestTiesToEven 10.0)) (fp.geq v_prenex_5 (_ +zero 11 53)) (not (fp.geq (fp.sub roundNearestTiesToEven .cse0 v_prenex_5) ((_ to_fp 11 53) roundNearestTiesToEven (_ bv0 32))))))) .cse1) (and (exists ((v_prenex_7 (_ FloatingPoint 11 53))) (let ((.cse2 (fp.mul roundNearestTiesToEven v_prenex_7 v_prenex_7))) (and (fp.geq v_prenex_7 (_ +zero 11 53)) (not (fp.geq (fp.add roundNearestTiesToEven .cse2 ((_ to_fp 11 53) roundNearestTiesToEven 2.0)) (_ +zero 11 53))) (not (fp.geq (fp.sub roundNearestTiesToEven .cse2 v_prenex_7) ((_ to_fp 11 53) roundNearestTiesToEven (_ bv0 32)))) (fp.leq v_prenex_7 ((_ to_fp 11 53) roundNearestTiesToEven 10.0))))) .cse1) (and (exists ((ULTIMATE.start_main_~x~0 (_ FloatingPoint 11 53))) (let ((.cse4 (fp.mul roundNearestTiesToEven ULTIMATE.start_main_~x~0 ULTIMATE.start_main_~x~0))) (let ((.cse3 (fp.add roundNearestTiesToEven .cse4 ((_ to_fp 11 53) roundNearestTiesToEven 2.0)))) (and (fp.geq .cse3 (_ +zero 11 53)) (not (fp.geq (fp.sub roundNearestTiesToEven .cse4 ULTIMATE.start_main_~x~0) ((_ to_fp 11 53) roundNearestTiesToEven (_ bv0 32)))) (fp.leq .cse3 ((_ to_fp 11 53) roundNearestTiesToEven 4.0)) (fp.geq ULTIMATE.start_main_~x~0 (_ +zero 11 53)) (fp.leq ULTIMATE.start_main_~x~0 ((_ to_fp 11 53) roundNearestTiesToEven 10.0)))))) (= (_ bv1 32) c_ULTIMATE.start___VERIFIER_assert_~cond)))) is different from false [2018-12-31 03:35:32,678 WARN L838 $PredicateComparison]: unable to prove that (or (exists ((v_prenex_7 (_ FloatingPoint 11 53))) (let ((.cse0 (fp.mul roundNearestTiesToEven v_prenex_7 v_prenex_7))) (and (fp.geq v_prenex_7 (_ +zero 11 53)) (not (fp.geq (fp.add roundNearestTiesToEven .cse0 ((_ to_fp 11 53) roundNearestTiesToEven 2.0)) (_ +zero 11 53))) (not (fp.geq (fp.sub roundNearestTiesToEven .cse0 v_prenex_7) ((_ to_fp 11 53) roundNearestTiesToEven (_ bv0 32)))) (fp.leq v_prenex_7 ((_ to_fp 11 53) roundNearestTiesToEven 10.0))))) (exists ((v_prenex_5 (_ FloatingPoint 11 53))) (let ((.cse1 (fp.mul roundNearestTiesToEven v_prenex_5 v_prenex_5))) (and (not (fp.leq (fp.add roundNearestTiesToEven .cse1 ((_ to_fp 11 53) roundNearestTiesToEven 2.0)) ((_ to_fp 11 53) roundNearestTiesToEven 4.0))) (fp.leq v_prenex_5 ((_ to_fp 11 53) roundNearestTiesToEven 10.0)) (fp.geq v_prenex_5 (_ +zero 11 53)) (not (fp.geq (fp.sub roundNearestTiesToEven .cse1 v_prenex_5) ((_ to_fp 11 53) roundNearestTiesToEven (_ bv0 32)))))))) is different from false [2018-12-31 03:35:34,742 WARN L860 $PredicateComparison]: unable to prove that (or (exists ((v_prenex_7 (_ FloatingPoint 11 53))) (let ((.cse0 (fp.mul roundNearestTiesToEven v_prenex_7 v_prenex_7))) (and (fp.geq v_prenex_7 (_ +zero 11 53)) (not (fp.geq (fp.add roundNearestTiesToEven .cse0 ((_ to_fp 11 53) roundNearestTiesToEven 2.0)) (_ +zero 11 53))) (not (fp.geq (fp.sub roundNearestTiesToEven .cse0 v_prenex_7) ((_ to_fp 11 53) roundNearestTiesToEven (_ bv0 32)))) (fp.leq v_prenex_7 ((_ to_fp 11 53) roundNearestTiesToEven 10.0))))) (exists ((v_prenex_5 (_ FloatingPoint 11 53))) (let ((.cse1 (fp.mul roundNearestTiesToEven v_prenex_5 v_prenex_5))) (and (not (fp.leq (fp.add roundNearestTiesToEven .cse1 ((_ to_fp 11 53) roundNearestTiesToEven 2.0)) ((_ to_fp 11 53) roundNearestTiesToEven 4.0))) (fp.leq v_prenex_5 ((_ to_fp 11 53) roundNearestTiesToEven 10.0)) (fp.geq v_prenex_5 (_ +zero 11 53)) (not (fp.geq (fp.sub roundNearestTiesToEven .cse1 v_prenex_5) ((_ to_fp 11 53) roundNearestTiesToEven (_ bv0 32)))))))) is different from true [2018-12-31 03:35:34,744 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-31 03:35:34,745 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-12-31 03:35:34,759 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-31 03:35:34,759 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-12-31 03:35:34,761 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-12-31 03:35:34,761 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-12-31 03:35:34,761 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=3, Unknown=6, NotChecked=12, Total=30 [2018-12-31 03:35:34,761 INFO L87 Difference]: Start difference. First operand 6 states and 5 transitions. Second operand 6 states. [2018-12-31 03:35:34,763 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-31 03:35:34,763 INFO L93 Difference]: Finished difference Result 6 states and 5 transitions. [2018-12-31 03:35:34,763 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-12-31 03:35:34,763 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 5 [2018-12-31 03:35:34,763 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-31 03:35:34,764 INFO L225 Difference]: With dead ends: 6 [2018-12-31 03:35:34,764 INFO L226 Difference]: Without dead ends: 0 [2018-12-31 03:35:34,767 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 4 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 13.3s TimeCoverageRelationStatistics Valid=9, Invalid=3, Unknown=6, NotChecked=12, Total=30 [2018-12-31 03:35:34,768 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-12-31 03:35:34,768 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-12-31 03:35:34,768 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-12-31 03:35:34,768 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-12-31 03:35:34,768 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 5 [2018-12-31 03:35:34,769 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-31 03:35:34,769 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-12-31 03:35:34,769 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-12-31 03:35:34,769 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-12-31 03:35:34,769 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-12-31 03:35:34,776 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2018-12-31 03:35:34,828 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2018-12-31 03:35:34,829 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2018-12-31 03:35:34,829 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2018-12-31 03:35:34,829 INFO L451 ceAbstractionStarter]: At program point L23(lines 11 24) the Hoare annotation is: true [2018-12-31 03:35:34,829 INFO L448 ceAbstractionStarter]: For program point L19(lines 19 20) no Hoare annotation was computed. [2018-12-31 03:35:34,830 INFO L448 ceAbstractionStarter]: For program point L19-2(lines 19 20) no Hoare annotation was computed. [2018-12-31 03:35:34,830 INFO L448 ceAbstractionStarter]: For program point L9(line 9) no Hoare annotation was computed. [2018-12-31 03:35:34,830 INFO L448 ceAbstractionStarter]: For program point L9-1(line 9) no Hoare annotation was computed. [2018-12-31 03:35:34,830 INFO L451 ceAbstractionStarter]: At program point L9-3(line 9) the Hoare annotation is: true [2018-12-31 03:35:34,830 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 9) no Hoare annotation was computed. [2018-12-31 03:35:34,838 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 31.12 03:35:34 BoogieIcfgContainer [2018-12-31 03:35:34,838 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-12-31 03:35:34,838 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-12-31 03:35:34,838 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-12-31 03:35:34,839 INFO L276 PluginConnector]: Witness Printer initialized [2018-12-31 03:35:34,840 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.12 03:34:14" (3/4) ... [2018-12-31 03:35:34,845 INFO L144 WitnessPrinter]: Generating witness for correct program [2018-12-31 03:35:34,856 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2018-12-31 03:35:34,856 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2018-12-31 03:35:34,900 INFO L145 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2018-12-31 03:35:34,900 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-12-31 03:35:34,901 INFO L168 Benchmark]: Toolchain (without parser) took 84234.99 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 138.9 MB). Free memory was 952.7 MB in the beginning and 1.1 GB in the end (delta: -113.2 MB). Peak memory consumption was 25.7 MB. Max. memory is 11.5 GB. [2018-12-31 03:35:34,903 INFO L168 Benchmark]: CDTParser took 0.17 ms. Allocated memory is still 1.0 GB. Free memory is still 978.2 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-31 03:35:34,904 INFO L168 Benchmark]: CACSL2BoogieTranslator took 291.03 ms. Allocated memory is still 1.0 GB. Free memory was 952.7 MB in the beginning and 940.6 MB in the end (delta: 12.1 MB). Peak memory consumption was 12.1 MB. Max. memory is 11.5 GB. [2018-12-31 03:35:34,904 INFO L168 Benchmark]: Boogie Procedure Inliner took 48.58 ms. Allocated memory is still 1.0 GB. Free memory is still 940.6 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-31 03:35:34,905 INFO L168 Benchmark]: Boogie Preprocessor took 42.65 ms. Allocated memory is still 1.0 GB. Free memory was 940.6 MB in the beginning and 935.2 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. [2018-12-31 03:35:34,906 INFO L168 Benchmark]: RCFGBuilder took 3253.03 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 138.9 MB). Free memory was 935.2 MB in the beginning and 1.1 GB in the end (delta: -178.3 MB). Peak memory consumption was 13.3 MB. Max. memory is 11.5 GB. [2018-12-31 03:35:34,907 INFO L168 Benchmark]: TraceAbstraction took 80531.55 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: 47.6 MB). Peak memory consumption was 47.6 MB. Max. memory is 11.5 GB. [2018-12-31 03:35:34,909 INFO L168 Benchmark]: Witness Printer took 62.19 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. [2018-12-31 03:35:34,914 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17 ms. Allocated memory is still 1.0 GB. Free memory is still 978.2 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 291.03 ms. Allocated memory is still 1.0 GB. Free memory was 952.7 MB in the beginning and 940.6 MB in the end (delta: 12.1 MB). Peak memory consumption was 12.1 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 48.58 ms. Allocated memory is still 1.0 GB. Free memory is still 940.6 MB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 42.65 ms. Allocated memory is still 1.0 GB. Free memory was 940.6 MB in the beginning and 935.2 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. * RCFGBuilder took 3253.03 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 138.9 MB). Free memory was 935.2 MB in the beginning and 1.1 GB in the end (delta: -178.3 MB). Peak memory consumption was 13.3 MB. Max. memory is 11.5 GB. * TraceAbstraction took 80531.55 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: 47.6 MB). Peak memory consumption was 47.6 MB. Max. memory is 11.5 GB. * Witness Printer took 62.19 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: 9]: 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: 9]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 11]: Loop Invariant Derived loop invariant: 1 - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 10 locations, 1 error locations. SAFE Result, 80.4s OverallTime, 2 OverallIterations, 1 TraceHistogramMax, 6.3s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 9 SDtfs, 1 SDslu, 13 SDs, 0 SdLazy, 1 SolverSat, 0 SolverUnsat, 1 SolverUnknown, 0 SolverNotchecked, 3.7s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 9 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 8 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 27.8s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=10occurred 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, 2 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 2 LocationsWithAnnotation, 2 PreInvPairs, 4 NumberOfFragments, 2 HoareAnnotationTreeSize, 2 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 2 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.9s SatisfiabilityAnalysisTime, 72.8s InterpolantComputationTime, 10 NumberOfCodeBlocks, 10 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 8 ConstructedInterpolants, 6 QuantifiedInterpolants, 1600 SizeOfPredicates, 8 NumberOfNonLiveVariables, 22 ConjunctsInSsa, 12 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! [MP z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forcibly destroying the process Received shutdown request...