/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/Ultimate.py --spec ../../../trunk/examples/svcomp/ReachSafety.prp --file ../../../trunk/examples/svcomp/floats-cdfpl/square_7_true-unreach-call_true-termination.i --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/floats-cdfpl/square_7_true-unreach-call_true-termination.i -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 606eec17d7532a4390087f1369eab3dc14272ffb .................................................................................................................................................................................................................... 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/floats-cdfpl/square_7_true-unreach-call_true-termination.i -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 606eec17d7532a4390087f1369eab3dc14272ffb .............................................................................................................................................................................................................................................................. 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 13:43:10,222 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-09-20 13:43:10,223 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-09-20 13:43:10,236 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-09-20 13:43:10,237 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-09-20 13:43:10,238 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-09-20 13:43:10,240 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-09-20 13:43:10,242 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-09-20 13:43:10,244 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-09-20 13:43:10,245 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-09-20 13:43:10,246 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-09-20 13:43:10,247 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-09-20 13:43:10,248 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-09-20 13:43:10,250 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-09-20 13:43:10,253 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-09-20 13:43:10,256 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-09-20 13:43:10,259 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-09-20 13:43:10,263 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-09-20 13:43:10,267 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-09-20 13:43:10,272 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-09-20 13:43:10,273 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-09-20 13:43:10,278 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-09-20 13:43:10,284 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-09-20 13:43:10,284 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-09-20 13:43:10,287 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-09-20 13:43:10,288 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-09-20 13:43:10,289 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-09-20 13:43:10,291 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-09-20 13:43:10,293 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-09-20 13:43:10,298 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-09-20 13:43:10,298 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-09-20 13:43:10,299 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-09-20 13:43:10,299 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-09-20 13:43:10,299 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-09-20 13:43:10,300 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-09-20 13:43:10,301 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-09-20 13:43:10,302 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2018-09-20 13:43:10,317 INFO L110 SettingsManager]: Loading preferences was successful [2018-09-20 13:43:10,317 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-09-20 13:43:10,318 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-09-20 13:43:10,318 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-09-20 13:43:10,319 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-09-20 13:43:10,319 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-09-20 13:43:10,320 INFO L133 SettingsManager]: * Use SBE=true [2018-09-20 13:43:10,320 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-09-20 13:43:10,320 INFO L133 SettingsManager]: * sizeof long=4 [2018-09-20 13:43:10,320 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-09-20 13:43:10,320 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-09-20 13:43:10,320 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-09-20 13:43:10,321 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-09-20 13:43:10,321 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-09-20 13:43:10,321 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-09-20 13:43:10,321 INFO L133 SettingsManager]: * sizeof long double=12 [2018-09-20 13:43:10,321 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-09-20 13:43:10,323 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-09-20 13:43:10,323 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-09-20 13:43:10,323 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-09-20 13:43:10,323 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-09-20 13:43:10,323 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-09-20 13:43:10,324 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-09-20 13:43:10,324 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-09-20 13:43:10,324 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-09-20 13:43:10,324 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-09-20 13:43:10,324 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-09-20 13:43:10,325 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-09-20 13:43:10,326 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-09-20 13:43:10,326 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 -> 606eec17d7532a4390087f1369eab3dc14272ffb [2018-09-20 13:43:10,377 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-09-20 13:43:10,398 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-09-20 13:43:10,404 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-09-20 13:43:10,406 INFO L271 PluginConnector]: Initializing CDTParser... [2018-09-20 13:43:10,407 INFO L276 PluginConnector]: CDTParser initialized [2018-09-20 13:43:10,408 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/floats-cdfpl/square_7_true-unreach-call_true-termination.i [2018-09-20 13:43:10,769 INFO L221 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7eff80d0c/ed16190cf2f44c26b9c6bd9d2c2becb1/FLAG7f28e7be4 [2018-09-20 13:43:10,892 INFO L277 CDTParser]: Found 1 translation units. [2018-09-20 13:43:10,892 INFO L159 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/floats-cdfpl/square_7_true-unreach-call_true-termination.i [2018-09-20 13:43:10,899 INFO L325 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7eff80d0c/ed16190cf2f44c26b9c6bd9d2c2becb1/FLAG7f28e7be4 [2018-09-20 13:43:10,915 INFO L333 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7eff80d0c/ed16190cf2f44c26b9c6bd9d2c2becb1 [2018-09-20 13:43:10,919 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-09-20 13:43:10,923 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-09-20 13:43:10,925 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-09-20 13:43:10,925 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-09-20 13:43:10,932 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-09-20 13:43:10,933 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.09 01:43:10" (1/1) ... [2018-09-20 13:43:10,937 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5df3b70d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:43:10, skipping insertion in model container [2018-09-20 13:43:10,937 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.09 01:43:10" (1/1) ... [2018-09-20 13:43:10,950 INFO L160 ieTranslatorObserver]: Starting translation in SV-COMP mode [2018-09-20 13:43:11,155 INFO L170 PostProcessor]: Settings: Checked method=main [2018-09-20 13:43:11,174 INFO L424 MainDispatcher]: Starting main dispatcher in SV-COMP mode [2018-09-20 13:43:11,180 INFO L170 PostProcessor]: Settings: Checked method=main [2018-09-20 13:43:11,193 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:43:11 WrapperNode [2018-09-20 13:43:11,194 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-09-20 13:43:11,195 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-09-20 13:43:11,195 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-09-20 13:43:11,195 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-09-20 13:43:11,212 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:43:11" (1/1) ... [2018-09-20 13:43:11,212 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:43:11" (1/1) ... [2018-09-20 13:43:11,220 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:43:11" (1/1) ... [2018-09-20 13:43:11,220 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:43:11" (1/1) ... [2018-09-20 13:43:11,222 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:43:11" (1/1) ... [2018-09-20 13:43:11,224 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:43:11" (1/1) ... [2018-09-20 13:43:11,226 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:43:11" (1/1) ... [2018-09-20 13:43:11,228 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-09-20 13:43:11,228 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-09-20 13:43:11,228 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-09-20 13:43:11,229 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-09-20 13:43:11,230 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:43:11" (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 13:43:11,311 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-09-20 13:43:11,313 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-09-20 13:43:11,313 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-09-20 13:43:11,313 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2018-09-20 13:43:11,313 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assume [2018-09-20 13:43:11,313 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_float [2018-09-20 13:43:11,314 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-09-20 13:43:11,314 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-09-20 13:43:11,314 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-09-20 13:43:11,556 INFO L365 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-09-20 13:43:11,557 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.09 01:43:11 BoogieIcfgContainer [2018-09-20 13:43:11,557 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-09-20 13:43:11,558 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-09-20 13:43:11,558 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-09-20 13:43:11,563 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-09-20 13:43:11,563 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.09 01:43:10" (1/3) ... [2018-09-20 13:43:11,564 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6fe1e6d2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.09 01:43:11, skipping insertion in model container [2018-09-20 13:43:11,564 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:43:11" (2/3) ... [2018-09-20 13:43:11,566 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6fe1e6d2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.09 01:43:11, skipping insertion in model container [2018-09-20 13:43:11,567 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.09 01:43:11" (3/3) ... [2018-09-20 13:43:11,574 INFO L112 eAbstractionObserver]: Analyzing ICFG square_7_true-unreach-call_true-termination.i [2018-09-20 13:43:11,585 INFO L137 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-09-20 13:43:11,597 INFO L149 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-09-20 13:43:11,669 INFO L130 ementStrategyFactory]: Using default assertion order modulation [2018-09-20 13:43:11,670 INFO L381 AbstractCegarLoop]: Interprodecural is true [2018-09-20 13:43:11,670 INFO L382 AbstractCegarLoop]: Hoare is true [2018-09-20 13:43:11,670 INFO L383 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-09-20 13:43:11,670 INFO L384 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-09-20 13:43:11,670 INFO L385 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-09-20 13:43:11,670 INFO L386 AbstractCegarLoop]: Difference is false [2018-09-20 13:43:11,671 INFO L387 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-09-20 13:43:11,671 INFO L392 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-09-20 13:43:11,695 INFO L276 IsEmpty]: Start isEmpty. Operand 13 states. [2018-09-20 13:43:11,713 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2018-09-20 13:43:11,713 INFO L368 BasicCegarLoop]: Found error trace [2018-09-20 13:43:11,716 INFO L376 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2018-09-20 13:43:11,719 INFO L423 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-20 13:43:11,727 INFO L82 PathProgramCache]: Analyzing trace with hash -2109216782, now seen corresponding path program 1 times [2018-09-20 13:43:11,730 INFO L227 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-09-20 13:43:11,731 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-09-20 13:43:11,791 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-20 13:43:11,791 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-20 13:43:11,791 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-20 13:43:11,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-09-20 13:43:11,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-09-20 13:43:11,839 INFO L443 BasicCegarLoop]: Counterexample might be feasible [2018-09-20 13:43:11,860 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.09 01:43:11 BoogieIcfgContainer [2018-09-20 13:43:11,860 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-09-20 13:43:11,860 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-09-20 13:43:11,860 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-09-20 13:43:11,861 INFO L276 PluginConnector]: Witness Printer initialized [2018-09-20 13:43:11,862 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.09 01:43:11" (3/4) ... [2018-09-20 13:43:11,866 INFO L147 WitnessPrinter]: No result that supports witness generation found [2018-09-20 13:43:11,866 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-09-20 13:43:11,867 INFO L168 Benchmark]: Toolchain (without parser) took 946.71 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 127.9 MB). Free memory was 951.8 MB in the beginning and 1.1 GB in the end (delta: -144.1 MB). There was no memory consumed. Max. memory is 11.5 GB. [2018-09-20 13:43:11,869 INFO L168 Benchmark]: CDTParser took 0.40 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 13:43:11,870 INFO L168 Benchmark]: CACSL2BoogieTranslator took 269.57 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 13:43:11,871 INFO L168 Benchmark]: Boogie Preprocessor took 33.03 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 13:43:11,872 INFO L168 Benchmark]: RCFGBuilder took 328.85 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 127.9 MB). Free memory was 941.1 MB in the beginning and 1.1 GB in the end (delta: -170.4 MB). Peak memory consumption was 26.6 MB. Max. memory is 11.5 GB. [2018-09-20 13:43:11,874 INFO L168 Benchmark]: TraceAbstraction took 301.64 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: 15.5 MB). Peak memory consumption was 15.5 MB. Max. memory is 11.5 GB. [2018-09-20 13:43:11,875 INFO L168 Benchmark]: Witness Printer took 5.52 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 13:43:11,880 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.40 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 269.57 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 33.03 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 328.85 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 127.9 MB). Free memory was 941.1 MB in the beginning and 1.1 GB in the end (delta: -170.4 MB). Peak memory consumption was 26.6 MB. Max. memory is 11.5 GB. * TraceAbstraction took 301.64 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: 15.5 MB). Peak memory consumption was 15.5 MB. Max. memory is 11.5 GB. * Witness Printer took 5.52 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: 15]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: overapproximation of someBinaryFLOATComparisonOperation at line 14, overapproximation of someBinaryArithmeticFLOAToperation at line 12. Possible FailurePath: [L6] float IN = __VERIFIER_nondet_float(); [L9] float x = IN; [L11-L12] float result = 1.0f + 0.5f*x - 0.125f*x*x + 0.0625f*x*x*x - 0.0390625f*x*x*x*x; VAL [IN=0, x=0] [L14] COND TRUE !(result >= 0.0f && result < 1.4f) VAL [IN=0, x=0] [L15] __VERIFIER_error() VAL [IN=0, x=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 3 procedures, 13 locations, 1 error locations. UNSAFE Result, 0.2s 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=13occurred 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, 7 NumberOfCodeBlocks, 7 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 13:43:14,207 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-09-20 13:43:14,209 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-09-20 13:43:14,221 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-09-20 13:43:14,222 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-09-20 13:43:14,223 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-09-20 13:43:14,224 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-09-20 13:43:14,226 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-09-20 13:43:14,228 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-09-20 13:43:14,229 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-09-20 13:43:14,230 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-09-20 13:43:14,230 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-09-20 13:43:14,231 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-09-20 13:43:14,233 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-09-20 13:43:14,234 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-09-20 13:43:14,235 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-09-20 13:43:14,236 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-09-20 13:43:14,238 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-09-20 13:43:14,240 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-09-20 13:43:14,242 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-09-20 13:43:14,243 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-09-20 13:43:14,245 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-09-20 13:43:14,248 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-09-20 13:43:14,248 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-09-20 13:43:14,248 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-09-20 13:43:14,249 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-09-20 13:43:14,250 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-09-20 13:43:14,251 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-09-20 13:43:14,252 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-09-20 13:43:14,254 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-09-20 13:43:14,254 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-09-20 13:43:14,255 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-09-20 13:43:14,255 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-09-20 13:43:14,255 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-09-20 13:43:14,257 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-09-20 13:43:14,258 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-09-20 13:43:14,258 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2018-09-20 13:43:14,273 INFO L110 SettingsManager]: Loading preferences was successful [2018-09-20 13:43:14,274 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-09-20 13:43:14,274 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-09-20 13:43:14,275 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-09-20 13:43:14,275 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-09-20 13:43:14,276 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-09-20 13:43:14,276 INFO L133 SettingsManager]: * Use SBE=true [2018-09-20 13:43:14,276 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-09-20 13:43:14,276 INFO L133 SettingsManager]: * sizeof long=4 [2018-09-20 13:43:14,277 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-09-20 13:43:14,277 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-09-20 13:43:14,277 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-09-20 13:43:14,277 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-09-20 13:43:14,278 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-09-20 13:43:14,278 INFO L133 SettingsManager]: * Use bitvectors instead of ints=true [2018-09-20 13:43:14,278 INFO L133 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2018-09-20 13:43:14,279 INFO L133 SettingsManager]: * sizeof long double=12 [2018-09-20 13:43:14,279 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-09-20 13:43:14,279 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-09-20 13:43:14,279 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-09-20 13:43:14,280 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-09-20 13:43:14,280 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-09-20 13:43:14,281 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-09-20 13:43:14,281 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-09-20 13:43:14,281 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-09-20 13:43:14,281 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-09-20 13:43:14,281 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-09-20 13:43:14,281 INFO L133 SettingsManager]: * Trace refinement strategy=WOLF [2018-09-20 13:43:14,282 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-09-20 13:43:14,282 INFO L133 SettingsManager]: * Command for external solver=cvc4nyu --tear-down-incremental --rewrite-divk --print-success --lang smt [2018-09-20 13:43:14,282 INFO L133 SettingsManager]: * Logic for external solver=AUFBV [2018-09-20 13:43:14,282 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 -> 606eec17d7532a4390087f1369eab3dc14272ffb [2018-09-20 13:43:14,339 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-09-20 13:43:14,357 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-09-20 13:43:14,361 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-09-20 13:43:14,362 INFO L271 PluginConnector]: Initializing CDTParser... [2018-09-20 13:43:14,363 INFO L276 PluginConnector]: CDTParser initialized [2018-09-20 13:43:14,364 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/floats-cdfpl/square_7_true-unreach-call_true-termination.i [2018-09-20 13:43:14,709 INFO L221 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/63cf2abd4/fcb8e8a42cb8426fb9d4ef8cd6941986/FLAG581748466 [2018-09-20 13:43:14,910 INFO L277 CDTParser]: Found 1 translation units. [2018-09-20 13:43:14,912 INFO L159 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/floats-cdfpl/square_7_true-unreach-call_true-termination.i [2018-09-20 13:43:14,920 INFO L325 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/63cf2abd4/fcb8e8a42cb8426fb9d4ef8cd6941986/FLAG581748466 [2018-09-20 13:43:14,946 INFO L333 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/63cf2abd4/fcb8e8a42cb8426fb9d4ef8cd6941986 [2018-09-20 13:43:14,951 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-09-20 13:43:14,959 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-09-20 13:43:14,960 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-09-20 13:43:14,960 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-09-20 13:43:14,971 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-09-20 13:43:14,972 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.09 01:43:14" (1/1) ... [2018-09-20 13:43:14,976 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@64ff6337 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:43:14, skipping insertion in model container [2018-09-20 13:43:14,976 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.09 01:43:14" (1/1) ... [2018-09-20 13:43:14,990 INFO L160 ieTranslatorObserver]: Starting translation in SV-COMP mode [2018-09-20 13:43:15,199 INFO L170 PostProcessor]: Settings: Checked method=main [2018-09-20 13:43:15,220 INFO L424 MainDispatcher]: Starting main dispatcher in SV-COMP mode [2018-09-20 13:43:15,227 INFO L170 PostProcessor]: Settings: Checked method=main [2018-09-20 13:43:15,244 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:43:15 WrapperNode [2018-09-20 13:43:15,244 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-09-20 13:43:15,245 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-09-20 13:43:15,245 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-09-20 13:43:15,245 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-09-20 13:43:15,261 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:43:15" (1/1) ... [2018-09-20 13:43:15,261 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:43:15" (1/1) ... [2018-09-20 13:43:15,270 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:43:15" (1/1) ... [2018-09-20 13:43:15,271 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:43:15" (1/1) ... [2018-09-20 13:43:15,274 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:43:15" (1/1) ... [2018-09-20 13:43:15,276 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:43:15" (1/1) ... [2018-09-20 13:43:15,278 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:43:15" (1/1) ... [2018-09-20 13:43:15,281 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-09-20 13:43:15,282 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-09-20 13:43:15,282 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-09-20 13:43:15,282 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-09-20 13:43:15,283 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:43:15" (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 13:43:15,356 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-09-20 13:43:15,356 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-09-20 13:43:15,356 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-09-20 13:43:15,356 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2018-09-20 13:43:15,357 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assume [2018-09-20 13:43:15,357 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_float [2018-09-20 13:43:15,357 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-09-20 13:43:15,357 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-09-20 13:43:15,357 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-09-20 13:43:17,714 INFO L365 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-09-20 13:43:17,715 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.09 01:43:17 BoogieIcfgContainer [2018-09-20 13:43:17,715 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-09-20 13:43:17,716 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-09-20 13:43:17,717 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-09-20 13:43:17,720 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-09-20 13:43:17,721 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.09 01:43:14" (1/3) ... [2018-09-20 13:43:17,722 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@30b80ab5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.09 01:43:17, skipping insertion in model container [2018-09-20 13:43:17,722 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:43:15" (2/3) ... [2018-09-20 13:43:17,722 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@30b80ab5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.09 01:43:17, skipping insertion in model container [2018-09-20 13:43:17,723 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.09 01:43:17" (3/3) ... [2018-09-20 13:43:17,726 INFO L112 eAbstractionObserver]: Analyzing ICFG square_7_true-unreach-call_true-termination.i [2018-09-20 13:43:17,737 INFO L137 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-09-20 13:43:17,745 INFO L149 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-09-20 13:43:17,799 INFO L130 ementStrategyFactory]: Using default assertion order modulation [2018-09-20 13:43:17,800 INFO L381 AbstractCegarLoop]: Interprodecural is true [2018-09-20 13:43:17,800 INFO L382 AbstractCegarLoop]: Hoare is true [2018-09-20 13:43:17,800 INFO L383 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-09-20 13:43:17,800 INFO L384 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-09-20 13:43:17,801 INFO L385 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-09-20 13:43:17,802 INFO L386 AbstractCegarLoop]: Difference is false [2018-09-20 13:43:17,802 INFO L387 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-09-20 13:43:17,802 INFO L392 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-09-20 13:43:17,822 INFO L276 IsEmpty]: Start isEmpty. Operand 13 states. [2018-09-20 13:43:17,828 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2018-09-20 13:43:17,829 INFO L368 BasicCegarLoop]: Found error trace [2018-09-20 13:43:17,830 INFO L376 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2018-09-20 13:43:17,832 INFO L423 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-20 13:43:17,837 INFO L82 PathProgramCache]: Analyzing trace with hash -2109216782, now seen corresponding path program 1 times [2018-09-20 13:43:17,841 INFO L227 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-09-20 13:43:17,842 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 13:43:17,851 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-20 13:47:24,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-20 13:47:24,984 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-20 13:47:27,114 WARN L797 $PredicateComparison]: unable to prove that (exists ((main_~IN~0 (_ FloatingPoint 8 24))) (let ((.cse0 ((_ to_fp 8 24) RNE 1.0))) (and (= c_main_~result~0 (fp.sub RNE (fp.add RNE (fp.sub RNE (fp.add RNE .cse0 (fp.mul RNE ((_ to_fp 8 24) RNE (/ 1.0 2.0)) main_~IN~0)) (fp.mul RNE (fp.mul RNE ((_ to_fp 8 24) RNE (/ 1.0 8.0)) main_~IN~0) main_~IN~0)) (fp.mul RNE (fp.mul RNE (fp.mul RNE ((_ to_fp 8 24) RNE (/ 1.0 16.0)) main_~IN~0) main_~IN~0) main_~IN~0)) (fp.mul RNE (fp.mul RNE (fp.mul RNE (fp.mul RNE ((_ to_fp 8 24) RNE (/ 5.0 128.0)) main_~IN~0) main_~IN~0) main_~IN~0) main_~IN~0))) (fp.lt main_~IN~0 .cse0) (fp.geq main_~IN~0 (_ +zero 8 24))))) is different from false [2018-09-20 13:47:29,212 WARN L819 $PredicateComparison]: unable to prove that (exists ((main_~IN~0 (_ FloatingPoint 8 24))) (let ((.cse0 ((_ to_fp 8 24) RNE 1.0))) (and (= c_main_~result~0 (fp.sub RNE (fp.add RNE (fp.sub RNE (fp.add RNE .cse0 (fp.mul RNE ((_ to_fp 8 24) RNE (/ 1.0 2.0)) main_~IN~0)) (fp.mul RNE (fp.mul RNE ((_ to_fp 8 24) RNE (/ 1.0 8.0)) main_~IN~0) main_~IN~0)) (fp.mul RNE (fp.mul RNE (fp.mul RNE ((_ to_fp 8 24) RNE (/ 1.0 16.0)) main_~IN~0) main_~IN~0) main_~IN~0)) (fp.mul RNE (fp.mul RNE (fp.mul RNE (fp.mul RNE ((_ to_fp 8 24) RNE (/ 5.0 128.0)) main_~IN~0) main_~IN~0) main_~IN~0) main_~IN~0))) (fp.lt main_~IN~0 .cse0) (fp.geq main_~IN~0 (_ +zero 8 24))))) is different from true [2018-09-20 13:47:41,767 WARN L797 $PredicateComparison]: unable to prove that (or (exists ((main_~IN~0 (_ FloatingPoint 8 24))) (let ((.cse0 ((_ to_fp 8 24) RNE 1.0))) (and (not (fp.geq (fp.sub RNE (fp.add RNE (fp.sub RNE (fp.add RNE .cse0 (fp.mul RNE ((_ to_fp 8 24) RNE (/ 1.0 2.0)) main_~IN~0)) (fp.mul RNE (fp.mul RNE ((_ to_fp 8 24) RNE (/ 1.0 8.0)) main_~IN~0) main_~IN~0)) (fp.mul RNE (fp.mul RNE (fp.mul RNE ((_ to_fp 8 24) RNE (/ 1.0 16.0)) main_~IN~0) main_~IN~0) main_~IN~0)) (fp.mul RNE (fp.mul RNE (fp.mul RNE (fp.mul RNE ((_ to_fp 8 24) RNE (/ 5.0 128.0)) main_~IN~0) main_~IN~0) main_~IN~0) main_~IN~0)) (_ +zero 8 24))) (fp.lt main_~IN~0 .cse0) (fp.geq main_~IN~0 (_ +zero 8 24))))) (exists ((v_prenex_1 (_ FloatingPoint 8 24))) (let ((.cse1 ((_ to_fp 8 24) RNE 1.0))) (and (fp.geq v_prenex_1 (_ +zero 8 24)) (fp.lt v_prenex_1 .cse1) (not (fp.lt (fp.sub RNE (fp.add RNE (fp.sub RNE (fp.add RNE .cse1 (fp.mul RNE ((_ to_fp 8 24) RNE (/ 1.0 2.0)) v_prenex_1)) (fp.mul RNE (fp.mul RNE ((_ to_fp 8 24) RNE (/ 1.0 8.0)) v_prenex_1) v_prenex_1)) (fp.mul RNE (fp.mul RNE (fp.mul RNE ((_ to_fp 8 24) RNE (/ 1.0 16.0)) v_prenex_1) v_prenex_1) v_prenex_1)) (fp.mul RNE (fp.mul RNE (fp.mul RNE (fp.mul RNE ((_ to_fp 8 24) RNE (/ 5.0 128.0)) v_prenex_1) v_prenex_1) v_prenex_1) v_prenex_1)) ((_ to_fp 8 24) RNE (/ 7.0 5.0)))))))) is different from false [2018-09-20 13:47:43,868 WARN L819 $PredicateComparison]: unable to prove that (or (exists ((main_~IN~0 (_ FloatingPoint 8 24))) (let ((.cse0 ((_ to_fp 8 24) RNE 1.0))) (and (not (fp.geq (fp.sub RNE (fp.add RNE (fp.sub RNE (fp.add RNE .cse0 (fp.mul RNE ((_ to_fp 8 24) RNE (/ 1.0 2.0)) main_~IN~0)) (fp.mul RNE (fp.mul RNE ((_ to_fp 8 24) RNE (/ 1.0 8.0)) main_~IN~0) main_~IN~0)) (fp.mul RNE (fp.mul RNE (fp.mul RNE ((_ to_fp 8 24) RNE (/ 1.0 16.0)) main_~IN~0) main_~IN~0) main_~IN~0)) (fp.mul RNE (fp.mul RNE (fp.mul RNE (fp.mul RNE ((_ to_fp 8 24) RNE (/ 5.0 128.0)) main_~IN~0) main_~IN~0) main_~IN~0) main_~IN~0)) (_ +zero 8 24))) (fp.lt main_~IN~0 .cse0) (fp.geq main_~IN~0 (_ +zero 8 24))))) (exists ((v_prenex_1 (_ FloatingPoint 8 24))) (let ((.cse1 ((_ to_fp 8 24) RNE 1.0))) (and (fp.geq v_prenex_1 (_ +zero 8 24)) (fp.lt v_prenex_1 .cse1) (not (fp.lt (fp.sub RNE (fp.add RNE (fp.sub RNE (fp.add RNE .cse1 (fp.mul RNE ((_ to_fp 8 24) RNE (/ 1.0 2.0)) v_prenex_1)) (fp.mul RNE (fp.mul RNE ((_ to_fp 8 24) RNE (/ 1.0 8.0)) v_prenex_1) v_prenex_1)) (fp.mul RNE (fp.mul RNE (fp.mul RNE ((_ to_fp 8 24) RNE (/ 1.0 16.0)) v_prenex_1) v_prenex_1) v_prenex_1)) (fp.mul RNE (fp.mul RNE (fp.mul RNE (fp.mul RNE ((_ to_fp 8 24) RNE (/ 5.0 128.0)) v_prenex_1) v_prenex_1) v_prenex_1) v_prenex_1)) ((_ to_fp 8 24) RNE (/ 7.0 5.0)))))))) is different from true [2018-09-20 13:47:43,874 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 13:47:43,875 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-09-20 13:47:43,899 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-20 13:47:43,899 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-09-20 13:47:43,904 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-09-20 13:47:43,918 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-09-20 13:47:43,919 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=1, Unknown=4, NotChecked=2, Total=12 [2018-09-20 13:47:43,922 INFO L87 Difference]: Start difference. First operand 13 states. Second operand 4 states. [2018-09-20 13:47:43,944 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-20 13:47:43,944 INFO L93 Difference]: Finished difference Result 18 states and 17 transitions. [2018-09-20 13:47:43,944 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-09-20 13:47:43,946 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 7 [2018-09-20 13:47:43,947 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-20 13:47:43,955 INFO L225 Difference]: With dead ends: 18 [2018-09-20 13:47:43,956 INFO L226 Difference]: Without dead ends: 0 [2018-09-20 13:47:43,960 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 2 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 8.4s TimeCoverageRelationStatistics Valid=5, Invalid=1, Unknown=4, NotChecked=2, Total=12 [2018-09-20 13:47:43,977 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-09-20 13:47:43,983 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-09-20 13:47:43,985 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-09-20 13:47:43,985 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-09-20 13:47:43,986 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 7 [2018-09-20 13:47:43,987 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-20 13:47:43,987 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-09-20 13:47:43,987 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-09-20 13:47:43,987 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-09-20 13:47:43,987 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-09-20 13:47:43,993 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2018-09-20 13:47:44,069 INFO L429 ceAbstractionStarter]: At program point ULTIMATE.initFINAL(line -1) the Hoare annotation is: true [2018-09-20 13:47:44,069 INFO L426 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2018-09-20 13:47:44,069 INFO L426 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2018-09-20 13:47:44,069 INFO L429 ceAbstractionStarter]: At program point L-1(line -1) the Hoare annotation is: true [2018-09-20 13:47:44,069 INFO L429 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2018-09-20 13:47:44,070 INFO L426 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2018-09-20 13:47:44,070 INFO L426 ceAbstractionStarter]: For program point L15(line 15) no Hoare annotation was computed. [2018-09-20 13:47:44,071 INFO L426 ceAbstractionStarter]: For program point L14(lines 14 15) no Hoare annotation was computed. [2018-09-20 13:47:44,071 INFO L429 ceAbstractionStarter]: At program point mainENTRY(lines 4 18) the Hoare annotation is: true [2018-09-20 13:47:44,071 INFO L426 ceAbstractionStarter]: For program point mainFINAL(lines 4 18) no Hoare annotation was computed. [2018-09-20 13:47:44,071 INFO L426 ceAbstractionStarter]: For program point L14-2(lines 14 15) no Hoare annotation was computed. [2018-09-20 13:47:44,071 INFO L426 ceAbstractionStarter]: For program point mainEXIT(lines 4 18) no Hoare annotation was computed. [2018-09-20 13:47:44,073 INFO L426 ceAbstractionStarter]: For program point mainErr0ASSERT_VIOLATIONERROR_FUNCTION(line 15) no Hoare annotation was computed. [2018-09-20 13:47:44,077 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.09 01:47:44 BoogieIcfgContainer [2018-09-20 13:47:44,079 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-09-20 13:47:44,080 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-09-20 13:47:44,080 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-09-20 13:47:44,081 INFO L276 PluginConnector]: Witness Printer initialized [2018-09-20 13:47:44,081 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.09 01:43:17" (3/4) ... [2018-09-20 13:47:44,087 INFO L144 WitnessPrinter]: Generating witness for correct program [2018-09-20 13:47:44,097 INFO L316 RCFGBacktranslator]: Ignoring RootEdge to procedure ULTIMATE.init [2018-09-20 13:47:44,098 INFO L316 RCFGBacktranslator]: Ignoring RootEdge to procedure main [2018-09-20 13:47:44,104 INFO L850 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2018-09-20 13:47:44,106 INFO L850 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2018-09-20 13:47:44,107 INFO L850 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2018-09-20 13:47:44,168 INFO L145 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2018-09-20 13:47:44,168 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-09-20 13:47:44,169 INFO L168 Benchmark]: Toolchain (without parser) took 269216.39 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 159.4 MB). Free memory was 953.2 MB in the beginning and 1.1 GB in the end (delta: -153.5 MB). Peak memory consumption was 5.9 MB. Max. memory is 11.5 GB. [2018-09-20 13:47:44,172 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 13:47:44,173 INFO L168 Benchmark]: CACSL2BoogieTranslator took 284.43 ms. Allocated memory is still 1.0 GB. Free memory was 953.2 MB in the beginning and 942.5 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2018-09-20 13:47:44,175 INFO L168 Benchmark]: Boogie Preprocessor took 36.43 ms. Allocated memory is still 1.0 GB. Free memory is still 942.5 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-09-20 13:47:44,178 INFO L168 Benchmark]: RCFGBuilder took 2433.27 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 159.4 MB). Free memory was 942.5 MB in the beginning and 1.1 GB in the end (delta: -197.2 MB). Peak memory consumption was 27.0 MB. Max. memory is 11.5 GB. [2018-09-20 13:47:44,180 INFO L168 Benchmark]: TraceAbstraction took 266362.92 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: 26.1 MB). Peak memory consumption was 26.1 MB. Max. memory is 11.5 GB. [2018-09-20 13:47:44,182 INFO L168 Benchmark]: Witness Printer took 88.12 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: 6.8 MB). Peak memory consumption was 6.8 MB. Max. memory is 11.5 GB. [2018-09-20 13:47:44,192 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 284.43 ms. Allocated memory is still 1.0 GB. Free memory was 953.2 MB in the beginning and 942.5 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 36.43 ms. Allocated memory is still 1.0 GB. Free memory is still 942.5 MB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 2433.27 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 159.4 MB). Free memory was 942.5 MB in the beginning and 1.1 GB in the end (delta: -197.2 MB). Peak memory consumption was 27.0 MB. Max. memory is 11.5 GB. * TraceAbstraction took 266362.92 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: 26.1 MB). Peak memory consumption was 26.1 MB. Max. memory is 11.5 GB. * Witness Printer took 88.12 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: 6.8 MB). Peak memory consumption was 6.8 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 15]: 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 3 procedures, 13 locations, 1 error locations. SAFE Result, 266.2s OverallTime, 1 OverallIterations, 1 TraceHistogramMax, 0.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 9 SDtfs, 0 SDslu, 0 SDs, 0 SdLazy, 0 SolverSat, 0 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 6 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 2 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 8.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=13occurred 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, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 4 LocationsWithAnnotation, 4 PreInvPairs, 4 NumberOfFragments, 4 HoareAnnotationTreeSize, 4 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 4 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 246.8s SatisfiabilityAnalysisTime, 19.1s InterpolantComputationTime, 7 NumberOfCodeBlocks, 7 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 6 ConstructedInterpolants, 2 QuantifiedInterpolants, 1224 SizeOfPredicates, 3 NumberOfNonLiveVariables, 17 ConjunctsInSsa, 5 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...