/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/Ultimate.py --spec ../../../trunk/examples/svcomp/ReachSafety.prp --file ../../../trunk/examples/svcomp/float-benchs/zonotope_tight_true-unreach-call_true-termination.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 40ef5092 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 ../../../trunk/examples/svcomp/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 ../../../trunk/examples/svcomp/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 0.1.23-40ef509 [2018-09-20 14:23:03,242 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-09-20 14:23:03,245 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-09-20 14:23:03,263 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-09-20 14:23:03,264 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-09-20 14:23:03,265 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-09-20 14:23:03,267 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-09-20 14:23:03,269 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-09-20 14:23:03,271 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-09-20 14:23:03,272 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-09-20 14:23:03,273 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-09-20 14:23:03,273 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-09-20 14:23:03,274 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-09-20 14:23:03,275 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-09-20 14:23:03,277 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-09-20 14:23:03,278 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-09-20 14:23:03,279 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-09-20 14:23:03,281 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-09-20 14:23:03,283 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-09-20 14:23:03,285 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-09-20 14:23:03,286 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-09-20 14:23:03,288 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-09-20 14:23:03,291 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-09-20 14:23:03,291 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-09-20 14:23:03,291 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-09-20 14:23:03,292 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-09-20 14:23:03,294 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-09-20 14:23:03,295 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-09-20 14:23:03,296 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-09-20 14:23:03,297 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-09-20 14:23:03,297 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-09-20 14:23:03,298 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-09-20 14:23:03,298 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-09-20 14:23:03,299 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-09-20 14:23:03,300 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-09-20 14:23:03,301 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-09-20 14:23:03,302 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2018-09-20 14:23:03,330 INFO L110 SettingsManager]: Loading preferences was successful [2018-09-20 14:23:03,330 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-09-20 14:23:03,331 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-09-20 14:23:03,331 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-09-20 14:23:03,332 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-09-20 14:23:03,332 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-09-20 14:23:03,333 INFO L133 SettingsManager]: * Use SBE=true [2018-09-20 14:23:03,333 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-09-20 14:23:03,333 INFO L133 SettingsManager]: * sizeof long=4 [2018-09-20 14:23:03,333 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-09-20 14:23:03,333 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-09-20 14:23:03,333 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-09-20 14:23:03,334 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-09-20 14:23:03,334 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-09-20 14:23:03,334 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-09-20 14:23:03,334 INFO L133 SettingsManager]: * sizeof long double=12 [2018-09-20 14:23:03,334 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-09-20 14:23:03,335 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-09-20 14:23:03,335 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-09-20 14:23:03,335 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-09-20 14:23:03,335 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-09-20 14:23:03,337 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-09-20 14:23:03,337 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-09-20 14:23:03,338 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-09-20 14:23:03,338 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-09-20 14:23:03,338 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-09-20 14:23:03,339 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-09-20 14:23:03,339 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-09-20 14:23:03,339 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-09-20 14:23:03,339 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 [2018-09-20 14:23:03,407 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-09-20 14:23:03,430 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-09-20 14:23:03,437 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-09-20 14:23:03,438 INFO L271 PluginConnector]: Initializing CDTParser... [2018-09-20 14:23:03,440 INFO L276 PluginConnector]: CDTParser initialized [2018-09-20 14:23:03,441 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/float-benchs/zonotope_tight_true-unreach-call_true-termination.c [2018-09-20 14:23:03,801 INFO L221 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a051d68f4/5f0098cf275a41a29eb8e7a39f09e4e2/FLAG2a414850c [2018-09-20 14:23:03,933 INFO L277 CDTParser]: Found 1 translation units. [2018-09-20 14:23:03,934 INFO L159 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/float-benchs/zonotope_tight_true-unreach-call_true-termination.c [2018-09-20 14:23:03,941 INFO L325 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a051d68f4/5f0098cf275a41a29eb8e7a39f09e4e2/FLAG2a414850c [2018-09-20 14:23:03,958 INFO L333 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a051d68f4/5f0098cf275a41a29eb8e7a39f09e4e2 [2018-09-20 14:23:03,963 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-09-20 14:23:03,965 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-09-20 14:23:03,966 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-09-20 14:23:03,967 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-09-20 14:23:03,974 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-09-20 14:23:03,975 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.09 02:23:03" (1/1) ... [2018-09-20 14:23:03,978 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@44c331fa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 02:23:03, skipping insertion in model container [2018-09-20 14:23:03,979 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.09 02:23:03" (1/1) ... [2018-09-20 14:23:03,991 INFO L160 ieTranslatorObserver]: Starting translation in SV-COMP mode [2018-09-20 14:23:04,235 INFO L170 PostProcessor]: Settings: Checked method=main [2018-09-20 14:23:04,257 INFO L424 MainDispatcher]: Starting main dispatcher in SV-COMP mode [2018-09-20 14:23:04,269 INFO L170 PostProcessor]: Settings: Checked method=main [2018-09-20 14:23:04,286 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 02:23:04 WrapperNode [2018-09-20 14:23:04,288 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-09-20 14:23:04,289 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-09-20 14:23:04,289 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-09-20 14:23:04,289 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-09-20 14:23:04,307 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 02:23:04" (1/1) ... [2018-09-20 14:23:04,307 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 02:23:04" (1/1) ... [2018-09-20 14:23:04,314 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 02:23:04" (1/1) ... [2018-09-20 14:23:04,315 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 02:23:04" (1/1) ... [2018-09-20 14:23:04,318 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 02:23:04" (1/1) ... [2018-09-20 14:23:04,321 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 02:23:04" (1/1) ... [2018-09-20 14:23:04,322 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 02:23:04" (1/1) ... [2018-09-20 14:23:04,324 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-09-20 14:23:04,325 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-09-20 14:23:04,325 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-09-20 14:23:04,325 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-09-20 14:23:04,326 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 02:23:04" (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 [2018-09-20 14:23:04,392 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-09-20 14:23:04,392 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-09-20 14:23:04,392 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2018-09-20 14:23:04,392 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-09-20 14:23:04,392 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2018-09-20 14:23:04,393 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_double [2018-09-20 14:23:04,393 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assume [2018-09-20 14:23:04,393 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2018-09-20 14:23:04,393 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-09-20 14:23:04,393 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-09-20 14:23:04,393 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-09-20 14:23:04,632 INFO L365 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-09-20 14:23:04,633 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.09 02:23:04 BoogieIcfgContainer [2018-09-20 14:23:04,633 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-09-20 14:23:04,635 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-09-20 14:23:04,635 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-09-20 14:23:04,638 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-09-20 14:23:04,638 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.09 02:23:03" (1/3) ... [2018-09-20 14:23:04,639 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1f31ac9e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.09 02:23:04, skipping insertion in model container [2018-09-20 14:23:04,639 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 02:23:04" (2/3) ... [2018-09-20 14:23:04,640 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1f31ac9e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.09 02:23:04, skipping insertion in model container [2018-09-20 14:23:04,640 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.09 02:23:04" (3/3) ... [2018-09-20 14:23:04,642 INFO L112 eAbstractionObserver]: Analyzing ICFG zonotope_tight_true-unreach-call_true-termination.c [2018-09-20 14:23:04,652 INFO L137 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-09-20 14:23:04,660 INFO L149 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-09-20 14:23:04,704 INFO L130 ementStrategyFactory]: Using default assertion order modulation [2018-09-20 14:23:04,705 INFO L381 AbstractCegarLoop]: Interprodecural is true [2018-09-20 14:23:04,705 INFO L382 AbstractCegarLoop]: Hoare is true [2018-09-20 14:23:04,705 INFO L383 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-09-20 14:23:04,705 INFO L384 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-09-20 14:23:04,706 INFO L385 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-09-20 14:23:04,706 INFO L386 AbstractCegarLoop]: Difference is false [2018-09-20 14:23:04,706 INFO L387 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-09-20 14:23:04,706 INFO L392 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-09-20 14:23:04,726 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states. [2018-09-20 14:23:04,732 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2018-09-20 14:23:04,733 INFO L368 BasicCegarLoop]: Found error trace [2018-09-20 14:23:04,734 INFO L376 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-20 14:23:04,736 INFO L423 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-20 14:23:04,744 INFO L82 PathProgramCache]: Analyzing trace with hash -1736771137, now seen corresponding path program 1 times [2018-09-20 14:23:04,747 INFO L227 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-09-20 14:23:04,747 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-09-20 14:23:04,809 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-20 14:23:04,810 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-20 14:23:04,810 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-20 14:23:04,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-09-20 14:23:04,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-09-20 14:23:04,873 INFO L443 BasicCegarLoop]: Counterexample might be feasible [2018-09-20 14:23:04,895 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.09 02:23:04 BoogieIcfgContainer [2018-09-20 14:23:04,895 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-09-20 14:23:04,896 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-09-20 14:23:04,896 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-09-20 14:23:04,896 INFO L276 PluginConnector]: Witness Printer initialized [2018-09-20 14:23:04,897 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.09 02:23:04" (3/4) ... [2018-09-20 14:23:04,901 INFO L147 WitnessPrinter]: No result that supports witness generation found [2018-09-20 14:23:04,901 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-09-20 14:23:04,902 INFO L168 Benchmark]: Toolchain (without parser) took 939.13 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 116.4 MB). Free memory was 951.8 MB in the beginning and 1.1 GB in the end (delta: -126.9 MB). There was no memory consumed. Max. memory is 11.5 GB. [2018-09-20 14:23:04,905 INFO L168 Benchmark]: CDTParser took 0.22 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. [2018-09-20 14:23:04,906 INFO L168 Benchmark]: CACSL2BoogieTranslator took 321.80 ms. Allocated memory is still 1.0 GB. Free memory was 951.8 MB in the beginning and 941.1 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2018-09-20 14:23:04,909 INFO L168 Benchmark]: Boogie Preprocessor took 35.83 ms. Allocated memory is still 1.0 GB. Free memory is still 941.1 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-09-20 14:23:04,909 INFO L168 Benchmark]: RCFGBuilder took 308.66 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 116.4 MB). Free memory was 941.1 MB in the beginning and 1.1 GB in the end (delta: -153.3 MB). Peak memory consumption was 26.7 MB. Max. memory is 11.5 GB. [2018-09-20 14:23:04,911 INFO L168 Benchmark]: TraceAbstraction took 260.66 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 15.7 MB). Peak memory consumption was 15.7 MB. Max. memory is 11.5 GB. [2018-09-20 14:23:04,911 INFO L168 Benchmark]: Witness Printer took 5.96 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2018-09-20 14:23:04,918 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22 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 321.80 ms. Allocated memory is still 1.0 GB. Free memory was 951.8 MB in the beginning and 941.1 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 35.83 ms. Allocated memory is still 1.0 GB. Free memory is still 941.1 MB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 308.66 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 116.4 MB). Free memory was 941.1 MB in the beginning and 1.1 GB in the end (delta: -153.3 MB). Peak memory consumption was 26.7 MB. Max. memory is 11.5 GB. * TraceAbstraction took 260.66 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 15.7 MB). Peak memory consumption was 15.7 MB. Max. memory is 11.5 GB. * Witness Printer took 5.96 ms. Allocated memory is still 1.1 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 19, overapproximation of someBinaryArithmeticDOUBLEoperation at line 19. Possible FailurePath: [L13] double x,y; [L15] x = __VERIFIER_nondet_double() [L18] y = x*x - x VAL [x=2] [L19] COND TRUE y >= 0 [L19] y = x / 10. VAL [x=2] [L22] CALL __VERIFIER_assert(y >= 0. && y <= 4.) VAL [\old(cond)=0] [L9] COND TRUE !(cond) VAL [\old(cond)=0, cond=0] [L9] __VERIFIER_error() VAL [\old(cond)=0, cond=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 18 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=18occurred 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, 10 NumberOfCodeBlocks, 10 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 0.1.23-40ef509 [2018-09-20 14:23:07,464 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-09-20 14:23:07,467 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-09-20 14:23:07,480 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-09-20 14:23:07,480 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-09-20 14:23:07,482 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-09-20 14:23:07,483 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-09-20 14:23:07,485 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-09-20 14:23:07,488 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-09-20 14:23:07,489 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-09-20 14:23:07,490 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-09-20 14:23:07,490 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-09-20 14:23:07,491 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-09-20 14:23:07,492 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-09-20 14:23:07,494 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-09-20 14:23:07,495 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-09-20 14:23:07,496 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-09-20 14:23:07,498 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-09-20 14:23:07,501 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-09-20 14:23:07,503 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-09-20 14:23:07,504 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-09-20 14:23:07,506 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-09-20 14:23:07,508 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-09-20 14:23:07,509 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-09-20 14:23:07,509 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-09-20 14:23:07,510 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-09-20 14:23:07,512 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-09-20 14:23:07,513 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-09-20 14:23:07,514 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-09-20 14:23:07,515 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-09-20 14:23:07,515 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-09-20 14:23:07,516 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-09-20 14:23:07,516 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-09-20 14:23:07,517 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-09-20 14:23:07,518 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-09-20 14:23:07,519 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-09-20 14:23:07,520 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2018-09-20 14:23:07,537 INFO L110 SettingsManager]: Loading preferences was successful [2018-09-20 14:23:07,540 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-09-20 14:23:07,542 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-09-20 14:23:07,542 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-09-20 14:23:07,543 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-09-20 14:23:07,543 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-09-20 14:23:07,543 INFO L133 SettingsManager]: * Use SBE=true [2018-09-20 14:23:07,543 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-09-20 14:23:07,543 INFO L133 SettingsManager]: * sizeof long=4 [2018-09-20 14:23:07,544 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-09-20 14:23:07,544 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-09-20 14:23:07,544 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-09-20 14:23:07,544 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-09-20 14:23:07,544 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-09-20 14:23:07,549 INFO L133 SettingsManager]: * Use bitvectors instead of ints=true [2018-09-20 14:23:07,549 INFO L133 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2018-09-20 14:23:07,549 INFO L133 SettingsManager]: * sizeof long double=12 [2018-09-20 14:23:07,549 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-09-20 14:23:07,549 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-09-20 14:23:07,550 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-09-20 14:23:07,550 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-09-20 14:23:07,550 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-09-20 14:23:07,550 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-09-20 14:23:07,553 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-09-20 14:23:07,553 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-09-20 14:23:07,553 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-09-20 14:23:07,553 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-09-20 14:23:07,554 INFO L133 SettingsManager]: * Trace refinement strategy=WOLF [2018-09-20 14:23:07,554 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-09-20 14:23:07,554 INFO L133 SettingsManager]: * Command for external solver=cvc4nyu --tear-down-incremental --rewrite-divk --print-success --lang smt [2018-09-20 14:23:07,554 INFO L133 SettingsManager]: * Logic for external solver=AUFBV [2018-09-20 14:23:07,554 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 [2018-09-20 14:23:07,634 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-09-20 14:23:07,655 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-09-20 14:23:07,660 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-09-20 14:23:07,662 INFO L271 PluginConnector]: Initializing CDTParser... [2018-09-20 14:23:07,662 INFO L276 PluginConnector]: CDTParser initialized [2018-09-20 14:23:07,663 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/float-benchs/zonotope_tight_true-unreach-call_true-termination.c [2018-09-20 14:23:08,068 INFO L221 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/72465bf91/5a3d48bf811e42c9933d3a1d499fb262/FLAGfdc7e390c [2018-09-20 14:23:08,199 INFO L277 CDTParser]: Found 1 translation units. [2018-09-20 14:23:08,200 INFO L159 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/float-benchs/zonotope_tight_true-unreach-call_true-termination.c [2018-09-20 14:23:08,206 INFO L325 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/72465bf91/5a3d48bf811e42c9933d3a1d499fb262/FLAGfdc7e390c [2018-09-20 14:23:08,224 INFO L333 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/72465bf91/5a3d48bf811e42c9933d3a1d499fb262 [2018-09-20 14:23:08,228 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-09-20 14:23:08,232 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-09-20 14:23:08,234 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-09-20 14:23:08,234 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-09-20 14:23:08,242 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-09-20 14:23:08,243 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.09 02:23:08" (1/1) ... [2018-09-20 14:23:08,247 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4b287182 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 02:23:08, skipping insertion in model container [2018-09-20 14:23:08,248 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.09 02:23:08" (1/1) ... [2018-09-20 14:23:08,261 INFO L160 ieTranslatorObserver]: Starting translation in SV-COMP mode [2018-09-20 14:23:08,479 INFO L170 PostProcessor]: Settings: Checked method=main [2018-09-20 14:23:08,501 INFO L424 MainDispatcher]: Starting main dispatcher in SV-COMP mode [2018-09-20 14:23:08,509 INFO L170 PostProcessor]: Settings: Checked method=main [2018-09-20 14:23:08,535 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 02:23:08 WrapperNode [2018-09-20 14:23:08,535 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-09-20 14:23:08,536 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-09-20 14:23:08,536 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-09-20 14:23:08,537 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-09-20 14:23:08,555 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 02:23:08" (1/1) ... [2018-09-20 14:23:08,555 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 02:23:08" (1/1) ... [2018-09-20 14:23:08,566 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 02:23:08" (1/1) ... [2018-09-20 14:23:08,567 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 02:23:08" (1/1) ... [2018-09-20 14:23:08,571 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 02:23:08" (1/1) ... [2018-09-20 14:23:08,576 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 02:23:08" (1/1) ... [2018-09-20 14:23:08,578 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 02:23:08" (1/1) ... [2018-09-20 14:23:08,588 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-09-20 14:23:08,589 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-09-20 14:23:08,589 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-09-20 14:23:08,589 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-09-20 14:23:08,593 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 02:23:08" (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 [2018-09-20 14:23:08,679 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-09-20 14:23:08,679 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-09-20 14:23:08,679 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2018-09-20 14:23:08,680 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-09-20 14:23:08,680 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2018-09-20 14:23:08,680 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_double [2018-09-20 14:23:08,680 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assume [2018-09-20 14:23:08,681 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2018-09-20 14:23:08,681 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-09-20 14:23:08,681 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-09-20 14:23:08,681 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-09-20 14:23:12,688 INFO L365 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-09-20 14:23:12,688 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.09 02:23:12 BoogieIcfgContainer [2018-09-20 14:23:12,689 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-09-20 14:23:12,690 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-09-20 14:23:12,691 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-09-20 14:23:12,694 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-09-20 14:23:12,695 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.09 02:23:08" (1/3) ... [2018-09-20 14:23:12,696 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4037ce4c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.09 02:23:12, skipping insertion in model container [2018-09-20 14:23:12,696 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 02:23:08" (2/3) ... [2018-09-20 14:23:12,697 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4037ce4c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.09 02:23:12, skipping insertion in model container [2018-09-20 14:23:12,697 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.09 02:23:12" (3/3) ... [2018-09-20 14:23:12,700 INFO L112 eAbstractionObserver]: Analyzing ICFG zonotope_tight_true-unreach-call_true-termination.c [2018-09-20 14:23:12,711 INFO L137 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-09-20 14:23:12,726 INFO L149 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-09-20 14:23:12,781 INFO L130 ementStrategyFactory]: Using default assertion order modulation [2018-09-20 14:23:12,782 INFO L381 AbstractCegarLoop]: Interprodecural is true [2018-09-20 14:23:12,783 INFO L382 AbstractCegarLoop]: Hoare is true [2018-09-20 14:23:12,783 INFO L383 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-09-20 14:23:12,783 INFO L384 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-09-20 14:23:12,783 INFO L385 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-09-20 14:23:12,784 INFO L386 AbstractCegarLoop]: Difference is false [2018-09-20 14:23:12,784 INFO L387 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-09-20 14:23:12,785 INFO L392 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-09-20 14:23:12,806 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states. [2018-09-20 14:23:12,811 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2018-09-20 14:23:12,812 INFO L368 BasicCegarLoop]: Found error trace [2018-09-20 14:23:12,813 INFO L376 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-20 14:23:12,816 INFO L423 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-20 14:23:12,822 INFO L82 PathProgramCache]: Analyzing trace with hash -1736771137, now seen corresponding path program 1 times [2018-09-20 14:23:12,827 INFO L227 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-09-20 14:23:12,828 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 [2018-09-20 14:23:12,842 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-20 14:23:13,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-20 14:23:13,490 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-20 14:23:15,840 WARN L797 $PredicateComparison]: unable to prove that (exists ((main_~x~0 (_ FloatingPoint 11 53))) (let ((.cse0 ((_ to_fp 11 53) RNE 10.0))) (and (fp.leq main_~x~0 .cse0) (fp.geq main_~x~0 (_ +zero 11 53)) (= (fp.div RNE main_~x~0 .cse0) c_main_~y~0)))) is different from false [2018-09-20 14:23:18,047 WARN L819 $PredicateComparison]: unable to prove that (exists ((main_~x~0 (_ FloatingPoint 11 53))) (let ((.cse0 ((_ to_fp 11 53) RNE 10.0))) (and (fp.leq main_~x~0 .cse0) (fp.geq main_~x~0 (_ +zero 11 53)) (= (fp.div RNE main_~x~0 .cse0) c_main_~y~0)))) is different from true [2018-09-20 14:23:33,792 WARN L797 $PredicateComparison]: unable to prove that (let ((.cse0 (= |c___VERIFIER_assert_#in~cond| (_ bv0 32)))) (or (and .cse0 (exists ((main_~x~0 (_ FloatingPoint 11 53))) (let ((.cse1 ((_ to_fp 11 53) RNE 10.0))) (and (not (fp.geq (fp.div RNE main_~x~0 .cse1) (_ +zero 11 53))) (fp.leq main_~x~0 .cse1) (fp.geq main_~x~0 (_ +zero 11 53)))))) (= (bvadd |c___VERIFIER_assert_#in~cond| (_ bv4294967295 32)) (_ bv0 32)) (and .cse0 (exists ((v_prenex_1 (_ FloatingPoint 11 53))) (let ((.cse2 ((_ to_fp 11 53) RNE 10.0))) (and (fp.leq v_prenex_1 .cse2) (fp.geq v_prenex_1 (_ +zero 11 53)) (not (fp.leq (fp.div RNE v_prenex_1 .cse2) ((_ to_fp 11 53) RNE 4.0))))))))) is different from false [2018-09-20 14:23:45,340 WARN L797 $PredicateComparison]: unable to prove that (let ((.cse0 (= (_ bv0 32) c___VERIFIER_assert_~cond))) (or (and .cse0 (exists ((v_prenex_1 (_ FloatingPoint 11 53))) (let ((.cse1 ((_ to_fp 11 53) RNE 10.0))) (and (fp.leq v_prenex_1 .cse1) (fp.geq v_prenex_1 (_ +zero 11 53)) (not (fp.leq (fp.div RNE v_prenex_1 .cse1) ((_ to_fp 11 53) RNE 4.0))))))) (= (bvadd c___VERIFIER_assert_~cond (_ bv4294967295 32)) (_ bv0 32)) (and .cse0 (exists ((main_~x~0 (_ FloatingPoint 11 53))) (let ((.cse2 ((_ to_fp 11 53) RNE 10.0))) (and (not (fp.geq (fp.div RNE main_~x~0 .cse2) (_ +zero 11 53))) (fp.leq main_~x~0 .cse2) (fp.geq main_~x~0 (_ +zero 11 53)))))))) is different from false [2018-09-20 14:23:56,872 WARN L797 $PredicateComparison]: unable to prove that (or (exists ((v_prenex_1 (_ FloatingPoint 11 53))) (let ((.cse0 ((_ to_fp 11 53) RNE 10.0))) (and (fp.leq v_prenex_1 .cse0) (fp.geq v_prenex_1 (_ +zero 11 53)) (not (fp.leq (fp.div RNE v_prenex_1 .cse0) ((_ to_fp 11 53) RNE 4.0)))))) (exists ((main_~x~0 (_ FloatingPoint 11 53))) (let ((.cse1 ((_ to_fp 11 53) RNE 10.0))) (and (not (fp.geq (fp.div RNE main_~x~0 .cse1) (_ +zero 11 53))) (fp.leq main_~x~0 .cse1) (fp.geq main_~x~0 (_ +zero 11 53)))))) is different from false [2018-09-20 14:23:59,134 WARN L819 $PredicateComparison]: unable to prove that (or (exists ((v_prenex_1 (_ FloatingPoint 11 53))) (let ((.cse0 ((_ to_fp 11 53) RNE 10.0))) (and (fp.leq v_prenex_1 .cse0) (fp.geq v_prenex_1 (_ +zero 11 53)) (not (fp.leq (fp.div RNE v_prenex_1 .cse0) ((_ to_fp 11 53) RNE 4.0)))))) (exists ((main_~x~0 (_ FloatingPoint 11 53))) (let ((.cse1 ((_ to_fp 11 53) RNE 10.0))) (and (not (fp.geq (fp.div RNE main_~x~0 .cse1) (_ +zero 11 53))) (fp.leq main_~x~0 .cse1) (fp.geq main_~x~0 (_ +zero 11 53)))))) is different from true [2018-09-20 14:23:59,141 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-20 14:23:59,142 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-09-20 14:23:59,167 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-20 14:23:59,168 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-09-20 14:23:59,174 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-09-20 14:23:59,191 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-09-20 14:23:59,192 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=5, Unknown=6, NotChecked=20, Total=42 [2018-09-20 14:23:59,198 INFO L87 Difference]: Start difference. First operand 18 states. Second operand 7 states. [2018-09-20 14:24:02,829 WARN L797 $PredicateComparison]: unable to prove that (and (exists ((main_~x~0 (_ FloatingPoint 11 53))) (let ((.cse0 ((_ to_fp 11 53) RNE 10.0))) (and (fp.leq main_~x~0 .cse0) (fp.geq main_~x~0 (_ +zero 11 53)) (= (fp.div RNE main_~x~0 .cse0) c_main_~y~0)))) (fp.leq c_main_~x~0 ((_ to_fp 11 53) RNE 10.0)) (fp.geq c_main_~x~0 (_ +zero 11 53))) is different from false [2018-09-20 14:24:04,944 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-20 14:24:04,946 INFO L93 Difference]: Finished difference Result 30 states and 33 transitions. [2018-09-20 14:24:05,009 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-09-20 14:24:05,010 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 10 [2018-09-20 14:24:05,011 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-20 14:24:05,019 INFO L225 Difference]: With dead ends: 30 [2018-09-20 14:24:05,020 INFO L226 Difference]: Without dead ends: 11 [2018-09-20 14:24:05,024 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 5 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 16.8s TimeCoverageRelationStatistics Valid=13, Invalid=6, Unknown=7, NotChecked=30, Total=56 [2018-09-20 14:24:05,043 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11 states. [2018-09-20 14:24:05,057 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11 to 11. [2018-09-20 14:24:05,059 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2018-09-20 14:24:05,059 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 10 transitions. [2018-09-20 14:24:05,061 INFO L78 Accepts]: Start accepts. Automaton has 11 states and 10 transitions. Word has length 10 [2018-09-20 14:24:05,061 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-20 14:24:05,061 INFO L480 AbstractCegarLoop]: Abstraction has 11 states and 10 transitions. [2018-09-20 14:24:05,062 INFO L481 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-09-20 14:24:05,062 INFO L276 IsEmpty]: Start isEmpty. Operand 11 states and 10 transitions. [2018-09-20 14:24:05,063 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2018-09-20 14:24:05,063 INFO L368 BasicCegarLoop]: Found error trace [2018-09-20 14:24:05,063 INFO L376 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-20 14:24:05,064 INFO L423 AbstractCegarLoop]: === Iteration 2 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-20 14:24:05,064 INFO L82 PathProgramCache]: Analyzing trace with hash -1734924095, now seen corresponding path program 1 times [2018-09-20 14:24:05,065 INFO L227 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-09-20 14:24:05,065 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) [2018-09-20 14:24:05,074 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY Waiting until toolchain timeout for monitored process 3 with mathsat -unsat_core_generation=3 [2018-09-20 14:24:05,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-20 14:24:05,648 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-20 14:24:07,709 WARN L797 $PredicateComparison]: unable to prove that (and (fp.leq c_main_~x~0 ((_ to_fp 11 53) RNE 10.0)) (= (fp.sub RNE (fp.mul RNE c_main_~x~0 c_main_~x~0) c_main_~x~0) c_main_~y~0) (fp.geq c_main_~x~0 (_ +zero 11 53))) is different from false [2018-09-20 14:24:09,781 WARN L797 $PredicateComparison]: unable to prove that (exists ((main_~x~0 (_ FloatingPoint 11 53))) (let ((.cse0 (fp.mul RNE main_~x~0 main_~x~0))) (and (= (fp.add RNE .cse0 ((_ to_fp 11 53) RNE 2.0)) c_main_~y~0) (fp.leq main_~x~0 ((_ to_fp 11 53) RNE 10.0)) (fp.geq main_~x~0 (_ +zero 11 53)) (not (fp.geq (fp.sub RNE .cse0 main_~x~0) ((_ to_fp 11 53) RNE (_ bv0 32))))))) is different from false [2018-09-20 14:24:11,834 WARN L819 $PredicateComparison]: unable to prove that (exists ((main_~x~0 (_ FloatingPoint 11 53))) (let ((.cse0 (fp.mul RNE main_~x~0 main_~x~0))) (and (= (fp.add RNE .cse0 ((_ to_fp 11 53) RNE 2.0)) c_main_~y~0) (fp.leq main_~x~0 ((_ to_fp 11 53) RNE 10.0)) (fp.geq main_~x~0 (_ +zero 11 53)) (not (fp.geq (fp.sub RNE .cse0 main_~x~0) ((_ to_fp 11 53) RNE (_ bv0 32))))))) is different from true [2018-09-20 14:24:28,484 WARN L797 $PredicateComparison]: unable to prove that (let ((.cse0 (= |c___VERIFIER_assert_#in~cond| (_ bv0 32)))) (or (and .cse0 (exists ((v_prenex_5 (_ FloatingPoint 11 53))) (let ((.cse1 (fp.mul RNE v_prenex_5 v_prenex_5))) (and (not (fp.geq (fp.sub RNE .cse1 v_prenex_5) ((_ to_fp 11 53) RNE (_ bv0 32)))) (fp.leq v_prenex_5 ((_ to_fp 11 53) RNE 10.0)) (fp.geq v_prenex_5 (_ +zero 11 53)) (not (fp.geq (fp.add RNE .cse1 ((_ to_fp 11 53) RNE 2.0)) (_ +zero 11 53))))))) (and (= (bvadd |c___VERIFIER_assert_#in~cond| (_ bv4294967295 32)) (_ bv0 32)) (exists ((main_~x~0 (_ FloatingPoint 11 53))) (let ((.cse3 (fp.mul RNE main_~x~0 main_~x~0))) (let ((.cse2 (fp.add RNE .cse3 ((_ to_fp 11 53) RNE 2.0)))) (and (fp.leq .cse2 ((_ to_fp 11 53) RNE 4.0)) (fp.leq main_~x~0 ((_ to_fp 11 53) RNE 10.0)) (fp.geq .cse2 (_ +zero 11 53)) (fp.geq main_~x~0 (_ +zero 11 53)) (not (fp.geq (fp.sub RNE .cse3 main_~x~0) ((_ to_fp 11 53) RNE (_ bv0 32))))))))) (and (exists ((v_prenex_3 (_ FloatingPoint 11 53))) (let ((.cse4 (fp.mul RNE v_prenex_3 v_prenex_3))) (and (fp.leq v_prenex_3 ((_ to_fp 11 53) RNE 10.0)) (fp.geq v_prenex_3 (_ +zero 11 53)) (not (fp.leq (fp.add RNE .cse4 ((_ to_fp 11 53) RNE 2.0)) ((_ to_fp 11 53) RNE 4.0))) (not (fp.geq (fp.sub RNE .cse4 v_prenex_3) ((_ to_fp 11 53) RNE (_ bv0 32))))))) .cse0))) is different from false [2018-09-20 14:24:43,107 WARN L797 $PredicateComparison]: unable to prove that (let ((.cse0 (= (_ bv0 32) c___VERIFIER_assert_~cond))) (or (and .cse0 (exists ((v_prenex_3 (_ FloatingPoint 11 53))) (let ((.cse1 (fp.mul RNE v_prenex_3 v_prenex_3))) (and (fp.leq v_prenex_3 ((_ to_fp 11 53) RNE 10.0)) (fp.geq v_prenex_3 (_ +zero 11 53)) (not (fp.leq (fp.add RNE .cse1 ((_ to_fp 11 53) RNE 2.0)) ((_ to_fp 11 53) RNE 4.0))) (not (fp.geq (fp.sub RNE .cse1 v_prenex_3) ((_ to_fp 11 53) RNE (_ bv0 32)))))))) (and (exists ((main_~x~0 (_ FloatingPoint 11 53))) (let ((.cse3 (fp.mul RNE main_~x~0 main_~x~0))) (let ((.cse2 (fp.add RNE .cse3 ((_ to_fp 11 53) RNE 2.0)))) (and (fp.leq .cse2 ((_ to_fp 11 53) RNE 4.0)) (fp.leq main_~x~0 ((_ to_fp 11 53) RNE 10.0)) (fp.geq .cse2 (_ +zero 11 53)) (fp.geq main_~x~0 (_ +zero 11 53)) (not (fp.geq (fp.sub RNE .cse3 main_~x~0) ((_ to_fp 11 53) RNE (_ bv0 32)))))))) (= (bvadd c___VERIFIER_assert_~cond (_ bv4294967295 32)) (_ bv0 32))) (and .cse0 (exists ((v_prenex_5 (_ FloatingPoint 11 53))) (let ((.cse4 (fp.mul RNE v_prenex_5 v_prenex_5))) (and (not (fp.geq (fp.sub RNE .cse4 v_prenex_5) ((_ to_fp 11 53) RNE (_ bv0 32)))) (fp.leq v_prenex_5 ((_ to_fp 11 53) RNE 10.0)) (fp.geq v_prenex_5 (_ +zero 11 53)) (not (fp.geq (fp.add RNE .cse4 ((_ to_fp 11 53) RNE 2.0)) (_ +zero 11 53))))))))) is different from false [2018-09-20 14:24:53,539 WARN L797 $PredicateComparison]: unable to prove that (or (exists ((v_prenex_3 (_ FloatingPoint 11 53))) (let ((.cse0 (fp.mul RNE v_prenex_3 v_prenex_3))) (and (fp.leq v_prenex_3 ((_ to_fp 11 53) RNE 10.0)) (fp.geq v_prenex_3 (_ +zero 11 53)) (not (fp.leq (fp.add RNE .cse0 ((_ to_fp 11 53) RNE 2.0)) ((_ to_fp 11 53) RNE 4.0))) (not (fp.geq (fp.sub RNE .cse0 v_prenex_3) ((_ to_fp 11 53) RNE (_ bv0 32))))))) (exists ((v_prenex_5 (_ FloatingPoint 11 53))) (let ((.cse1 (fp.mul RNE v_prenex_5 v_prenex_5))) (and (not (fp.geq (fp.sub RNE .cse1 v_prenex_5) ((_ to_fp 11 53) RNE (_ bv0 32)))) (fp.leq v_prenex_5 ((_ to_fp 11 53) RNE 10.0)) (fp.geq v_prenex_5 (_ +zero 11 53)) (not (fp.geq (fp.add RNE .cse1 ((_ to_fp 11 53) RNE 2.0)) (_ +zero 11 53))))))) is different from false [2018-09-20 14:24:55,604 WARN L819 $PredicateComparison]: unable to prove that (or (exists ((v_prenex_3 (_ FloatingPoint 11 53))) (let ((.cse0 (fp.mul RNE v_prenex_3 v_prenex_3))) (and (fp.leq v_prenex_3 ((_ to_fp 11 53) RNE 10.0)) (fp.geq v_prenex_3 (_ +zero 11 53)) (not (fp.leq (fp.add RNE .cse0 ((_ to_fp 11 53) RNE 2.0)) ((_ to_fp 11 53) RNE 4.0))) (not (fp.geq (fp.sub RNE .cse0 v_prenex_3) ((_ to_fp 11 53) RNE (_ bv0 32))))))) (exists ((v_prenex_5 (_ FloatingPoint 11 53))) (let ((.cse1 (fp.mul RNE v_prenex_5 v_prenex_5))) (and (not (fp.geq (fp.sub RNE .cse1 v_prenex_5) ((_ to_fp 11 53) RNE (_ bv0 32)))) (fp.leq v_prenex_5 ((_ to_fp 11 53) RNE 10.0)) (fp.geq v_prenex_5 (_ +zero 11 53)) (not (fp.geq (fp.add RNE .cse1 ((_ to_fp 11 53) RNE 2.0)) (_ +zero 11 53))))))) is different from true [2018-09-20 14:24:55,607 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-20 14:24:55,607 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-09-20 14:24:55,620 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-20 14:24:55,620 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-09-20 14:24:55,622 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-09-20 14:24:55,622 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-09-20 14:24:55,623 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=4, Unknown=7, NotChecked=20, Total=42 [2018-09-20 14:24:55,623 INFO L87 Difference]: Start difference. First operand 11 states and 10 transitions. Second operand 7 states. [2018-09-20 14:24:55,627 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-20 14:24:55,627 INFO L93 Difference]: Finished difference Result 11 states and 10 transitions. [2018-09-20 14:24:55,627 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-09-20 14:24:55,630 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 10 [2018-09-20 14:24:55,630 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-20 14:24:55,631 INFO L225 Difference]: With dead ends: 11 [2018-09-20 14:24:55,631 INFO L226 Difference]: Without dead ends: 0 [2018-09-20 14:24:55,632 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 5 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 14.7s TimeCoverageRelationStatistics Valid=11, Invalid=4, Unknown=7, NotChecked=20, Total=42 [2018-09-20 14:24:55,632 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-09-20 14:24:55,633 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-09-20 14:24:55,633 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-09-20 14:24:55,633 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-09-20 14:24:55,634 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 10 [2018-09-20 14:24:55,634 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-20 14:24:55,634 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-09-20 14:24:55,634 INFO L481 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-09-20 14:24:55,634 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-09-20 14:24:55,634 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-09-20 14:24:55,639 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2018-09-20 14:25:19,826 WARN L178 SmtUtils]: Spent 24.13 s on a formula simplification that was a NOOP. DAG size: 26 [2018-09-20 14:25:28,193 WARN L178 SmtUtils]: Spent 8.36 s on a formula simplification. DAG size of input: 101 DAG size of output: 1 [2018-09-20 14:25:28,195 INFO L429 ceAbstractionStarter]: At program point ULTIMATE.initFINAL(line -1) the Hoare annotation is: true [2018-09-20 14:25:28,196 INFO L426 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2018-09-20 14:25:28,196 INFO L426 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2018-09-20 14:25:28,196 INFO L429 ceAbstractionStarter]: At program point L-1(line -1) the Hoare annotation is: true [2018-09-20 14:25:28,196 INFO L429 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2018-09-20 14:25:28,196 INFO L426 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2018-09-20 14:25:28,197 INFO L422 ceAbstractionStarter]: At program point L19-2(lines 19 20) the Hoare annotation is: (or (and (exists ((main_~x~0 (_ FloatingPoint 11 53))) (let ((.cse0 ((_ to_fp 11 53) RNE 10.0))) (and (fp.leq main_~x~0 .cse0) (fp.geq main_~x~0 (_ +zero 11 53)) (= (fp.div RNE main_~x~0 .cse0) main_~y~0)))) (fp.leq main_~x~0 ((_ to_fp 11 53) RNE 10.0)) (fp.geq main_~x~0 (_ +zero 11 53))) (exists ((main_~x~0 (_ FloatingPoint 11 53))) (let ((.cse1 (fp.mul RNE main_~x~0 main_~x~0))) (and (= (fp.add RNE .cse1 ((_ to_fp 11 53) RNE 2.0)) main_~y~0) (fp.leq main_~x~0 ((_ to_fp 11 53) RNE 10.0)) (fp.geq main_~x~0 (_ +zero 11 53)) (not (fp.geq (fp.sub RNE .cse1 main_~x~0) ((_ to_fp 11 53) RNE (_ bv0 32)))))))) [2018-09-20 14:25:28,198 INFO L429 ceAbstractionStarter]: At program point mainENTRY(lines 11 24) the Hoare annotation is: true [2018-09-20 14:25:28,198 INFO L426 ceAbstractionStarter]: For program point mainFINAL(lines 11 24) no Hoare annotation was computed. [2018-09-20 14:25:28,198 INFO L426 ceAbstractionStarter]: For program point mainEXIT(lines 11 24) no Hoare annotation was computed. [2018-09-20 14:25:28,198 INFO L426 ceAbstractionStarter]: For program point L22(line 22) no Hoare annotation was computed. [2018-09-20 14:25:28,199 INFO L426 ceAbstractionStarter]: For program point L19(lines 19 20) no Hoare annotation was computed. [2018-09-20 14:25:28,199 INFO L429 ceAbstractionStarter]: At program point __VERIFIER_assertENTRY(line 9) the Hoare annotation is: true [2018-09-20 14:25:28,200 INFO L426 ceAbstractionStarter]: For program point __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION(line 9) no Hoare annotation was computed. [2018-09-20 14:25:28,200 INFO L426 ceAbstractionStarter]: For program point __VERIFIER_assertEXIT(line 9) no Hoare annotation was computed. [2018-09-20 14:25:28,200 INFO L426 ceAbstractionStarter]: For program point L9(line 9) no Hoare annotation was computed. [2018-09-20 14:25:28,200 INFO L426 ceAbstractionStarter]: For program point L9-1(line 9) no Hoare annotation was computed. [2018-09-20 14:25:28,200 INFO L426 ceAbstractionStarter]: For program point L9-3(line 9) no Hoare annotation was computed. [2018-09-20 14:25:28,204 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.09 02:25:28 BoogieIcfgContainer [2018-09-20 14:25:28,204 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-09-20 14:25:28,205 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-09-20 14:25:28,205 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-09-20 14:25:28,205 INFO L276 PluginConnector]: Witness Printer initialized [2018-09-20 14:25:28,206 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.09 02:23:12" (3/4) ... [2018-09-20 14:25:28,211 INFO L144 WitnessPrinter]: Generating witness for correct program [2018-09-20 14:25:28,221 INFO L316 RCFGBacktranslator]: Ignoring RootEdge to procedure ULTIMATE.init [2018-09-20 14:25:28,221 INFO L316 RCFGBacktranslator]: Ignoring RootEdge to procedure main [2018-09-20 14:25:28,221 INFO L316 RCFGBacktranslator]: Ignoring RootEdge to procedure __VERIFIER_assert [2018-09-20 14:25:28,226 INFO L850 BoogieBacktranslator]: Reduced CFG by removing 7 nodes and edges [2018-09-20 14:25:28,227 INFO L850 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2018-09-20 14:25:28,227 INFO L850 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2018-09-20 14:25:28,270 INFO L145 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2018-09-20 14:25:28,270 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-09-20 14:25:28,271 INFO L168 Benchmark]: Toolchain (without parser) took 140041.87 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 132.1 MB). Free memory was 951.9 MB in the beginning and 1.1 GB in the end (delta: -98.2 MB). Peak memory consumption was 34.0 MB. Max. memory is 11.5 GB. [2018-09-20 14:25:28,272 INFO L168 Benchmark]: CDTParser took 0.22 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. [2018-09-20 14:25:28,272 INFO L168 Benchmark]: CACSL2BoogieTranslator took 302.10 ms. Allocated memory is still 1.0 GB. Free memory was 951.9 MB in the beginning and 941.1 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2018-09-20 14:25:28,273 INFO L168 Benchmark]: Boogie Preprocessor took 51.93 ms. Allocated memory is still 1.0 GB. Free memory is still 941.1 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-09-20 14:25:28,273 INFO L168 Benchmark]: RCFGBuilder took 4100.14 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 132.1 MB). Free memory was 941.1 MB in the beginning and 1.1 GB in the end (delta: -165.8 MB). Peak memory consumption was 27.2 MB. Max. memory is 11.5 GB. [2018-09-20 14:25:28,274 INFO L168 Benchmark]: TraceAbstraction took 135513.45 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: 56.9 MB). Peak memory consumption was 56.9 MB. Max. memory is 11.5 GB. [2018-09-20 14:25:28,276 INFO L168 Benchmark]: Witness Printer took 65.14 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. [2018-09-20 14:25:28,280 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22 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 302.10 ms. Allocated memory is still 1.0 GB. Free memory was 951.9 MB in the beginning and 941.1 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 51.93 ms. Allocated memory is still 1.0 GB. Free memory is still 941.1 MB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 4100.14 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 132.1 MB). Free memory was 941.1 MB in the beginning and 1.1 GB in the end (delta: -165.8 MB). Peak memory consumption was 27.2 MB. Max. memory is 11.5 GB. * TraceAbstraction took 135513.45 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: 56.9 MB). Peak memory consumption was 56.9 MB. Max. memory is 11.5 GB. * Witness Printer took 65.14 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 - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 18 locations, 1 error locations. SAFE Result, 135.4s OverallTime, 2 OverallIterations, 1 TraceHistogramMax, 5.8s AutomataDifference, 0.0s DeadEndRemovalTime, 32.5s HoareAnnotationTime, HoareTripleCheckerStatistics: 21 SDtfs, 1 SDslu, 56 SDs, 0 SdLazy, 1 SolverSat, 0 SolverUnsat, 1 SolverUnknown, 0 SolverNotchecked, 3.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 19 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 10 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 31.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=18occurred 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, 6 LocationsWithAnnotation, 7 PreInvPairs, 8 NumberOfFragments, 66 HoareAnnotationTreeSize, 7 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 6 FomulaSimplificationsInter, 381 FormulaSimplificationTreeSizeReductionInter, 32.4s HoareSimplificationTimeInter, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 1.0s SatisfiabilityAnalysisTime, 95.7s InterpolantComputationTime, 20 NumberOfCodeBlocks, 20 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 18 ConstructedInterpolants, 8 QuantifiedInterpolants, 5112 SizeOfPredicates, 6 NumberOfNonLiveVariables, 44 ConjunctsInSsa, 14 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...