/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/Ultimate.py --spec ../../../trunk/examples/svcomp/ReachSafety.prp --file ../../../trunk/examples/svcomp/floats-cbmc-regression/float20_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-cbmc-regression/float20_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 0141f30eebc41972a05a5b9a00ccec3818dc94e8 ........................................................................................................................................................................................................................... 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-cbmc-regression/float20_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 0141f30eebc41972a05a5b9a00ccec3818dc94e8 ........................................................................................................................................................................................................................................................................................................................................................................... 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 13:46:58,196 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-09-20 13:46:58,199 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-09-20 13:46:58,215 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-09-20 13:46:58,216 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-09-20 13:46:58,218 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-09-20 13:46:58,220 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-09-20 13:46:58,222 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-09-20 13:46:58,226 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-09-20 13:46:58,233 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-09-20 13:46:58,234 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-09-20 13:46:58,234 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-09-20 13:46:58,235 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-09-20 13:46:58,241 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-09-20 13:46:58,243 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-09-20 13:46:58,244 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-09-20 13:46:58,245 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-09-20 13:46:58,249 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-09-20 13:46:58,254 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-09-20 13:46:58,256 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-09-20 13:46:58,259 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-09-20 13:46:58,262 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-09-20 13:46:58,269 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-09-20 13:46:58,270 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-09-20 13:46:58,270 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-09-20 13:46:58,271 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-09-20 13:46:58,275 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-09-20 13:46:58,276 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-09-20 13:46:58,278 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-09-20 13:46:58,280 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-09-20 13:46:58,280 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-09-20 13:46:58,281 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-09-20 13:46:58,283 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-09-20 13:46:58,283 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-09-20 13:46:58,284 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-09-20 13:46:58,286 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-09-20 13:46:58,286 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2018-09-20 13:46:58,317 INFO L110 SettingsManager]: Loading preferences was successful [2018-09-20 13:46:58,317 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-09-20 13:46:58,318 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-09-20 13:46:58,319 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-09-20 13:46:58,319 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-09-20 13:46:58,320 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-09-20 13:46:58,320 INFO L133 SettingsManager]: * Use SBE=true [2018-09-20 13:46:58,320 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-09-20 13:46:58,321 INFO L133 SettingsManager]: * sizeof long=4 [2018-09-20 13:46:58,321 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-09-20 13:46:58,321 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-09-20 13:46:58,321 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-09-20 13:46:58,321 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-09-20 13:46:58,322 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-09-20 13:46:58,322 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-09-20 13:46:58,322 INFO L133 SettingsManager]: * sizeof long double=12 [2018-09-20 13:46:58,322 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-09-20 13:46:58,323 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-09-20 13:46:58,323 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-09-20 13:46:58,323 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-09-20 13:46:58,323 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-09-20 13:46:58,323 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-09-20 13:46:58,323 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-09-20 13:46:58,324 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-09-20 13:46:58,324 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-09-20 13:46:58,324 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-09-20 13:46:58,324 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-09-20 13:46:58,326 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-09-20 13:46:58,326 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-09-20 13:46:58,326 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 -> 0141f30eebc41972a05a5b9a00ccec3818dc94e8 [2018-09-20 13:46:58,396 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-09-20 13:46:58,409 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-09-20 13:46:58,413 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-09-20 13:46:58,415 INFO L271 PluginConnector]: Initializing CDTParser... [2018-09-20 13:46:58,415 INFO L276 PluginConnector]: CDTParser initialized [2018-09-20 13:46:58,416 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/floats-cbmc-regression/float20_true-unreach-call_true-termination.i [2018-09-20 13:46:58,808 INFO L221 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/53b9ee18a/981892b9f65145a2bea1e221d0860329/FLAG716b8161d [2018-09-20 13:46:58,997 INFO L277 CDTParser]: Found 1 translation units. [2018-09-20 13:46:58,998 INFO L159 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/floats-cbmc-regression/float20_true-unreach-call_true-termination.i [2018-09-20 13:46:59,009 INFO L325 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/53b9ee18a/981892b9f65145a2bea1e221d0860329/FLAG716b8161d [2018-09-20 13:46:59,026 INFO L333 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/53b9ee18a/981892b9f65145a2bea1e221d0860329 [2018-09-20 13:46:59,030 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-09-20 13:46:59,032 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-09-20 13:46:59,033 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-09-20 13:46:59,034 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-09-20 13:46:59,040 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-09-20 13:46:59,041 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.09 01:46:59" (1/1) ... [2018-09-20 13:46:59,045 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1c12811b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:46:59, skipping insertion in model container [2018-09-20 13:46:59,045 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.09 01:46:59" (1/1) ... [2018-09-20 13:46:59,059 INFO L160 ieTranslatorObserver]: Starting translation in SV-COMP mode [2018-09-20 13:46:59,291 INFO L170 PostProcessor]: Settings: Checked method=main [2018-09-20 13:46:59,311 INFO L424 MainDispatcher]: Starting main dispatcher in SV-COMP mode [2018-09-20 13:46:59,340 INFO L170 PostProcessor]: Settings: Checked method=main [2018-09-20 13:46:59,358 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:46:59 WrapperNode [2018-09-20 13:46:59,358 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-09-20 13:46:59,359 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-09-20 13:46:59,359 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-09-20 13:46:59,359 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-09-20 13:46:59,381 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:46:59" (1/1) ... [2018-09-20 13:46:59,381 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:46:59" (1/1) ... [2018-09-20 13:46:59,390 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:46:59" (1/1) ... [2018-09-20 13:46:59,391 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:46:59" (1/1) ... [2018-09-20 13:46:59,393 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:46:59" (1/1) ... [2018-09-20 13:46:59,396 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:46:59" (1/1) ... [2018-09-20 13:46:59,397 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:46:59" (1/1) ... [2018-09-20 13:46:59,400 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-09-20 13:46:59,401 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-09-20 13:46:59,401 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-09-20 13:46:59,401 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-09-20 13:46:59,403 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:46:59" (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 13:46:59,483 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-09-20 13:46:59,484 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-09-20 13:46:59,484 INFO L138 BoogieDeclarations]: Found implementation of procedure bug [2018-09-20 13:46:59,484 INFO L138 BoogieDeclarations]: Found implementation of procedure bugBrokenOut [2018-09-20 13:46:59,484 INFO L138 BoogieDeclarations]: Found implementation of procedure bugCasting [2018-09-20 13:46:59,484 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-09-20 13:46:59,485 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assume [2018-09-20 13:46:59,485 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2018-09-20 13:46:59,485 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_float [2018-09-20 13:46:59,485 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_double [2018-09-20 13:46:59,485 INFO L130 BoogieDeclarations]: Found specification of procedure bug [2018-09-20 13:46:59,485 INFO L130 BoogieDeclarations]: Found specification of procedure bugBrokenOut [2018-09-20 13:46:59,485 INFO L130 BoogieDeclarations]: Found specification of procedure bugCasting [2018-09-20 13:46:59,486 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-09-20 13:46:59,486 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-09-20 13:46:59,486 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-09-20 13:46:59,986 INFO L365 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-09-20 13:46:59,986 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.09 01:46:59 BoogieIcfgContainer [2018-09-20 13:46:59,987 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-09-20 13:46:59,988 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-09-20 13:46:59,988 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-09-20 13:46:59,991 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-09-20 13:46:59,992 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.09 01:46:59" (1/3) ... [2018-09-20 13:46:59,993 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1ab5e4b5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.09 01:46:59, skipping insertion in model container [2018-09-20 13:46:59,993 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:46:59" (2/3) ... [2018-09-20 13:46:59,993 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1ab5e4b5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.09 01:46:59, skipping insertion in model container [2018-09-20 13:46:59,993 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.09 01:46:59" (3/3) ... [2018-09-20 13:46:59,995 INFO L112 eAbstractionObserver]: Analyzing ICFG float20_true-unreach-call_true-termination.i [2018-09-20 13:47:00,007 INFO L137 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-09-20 13:47:00,016 INFO L149 ceAbstractionStarter]: Appying trace abstraction to program that has 3 error locations. [2018-09-20 13:47:00,071 INFO L130 ementStrategyFactory]: Using default assertion order modulation [2018-09-20 13:47:00,072 INFO L381 AbstractCegarLoop]: Interprodecural is true [2018-09-20 13:47:00,072 INFO L382 AbstractCegarLoop]: Hoare is true [2018-09-20 13:47:00,072 INFO L383 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-09-20 13:47:00,073 INFO L384 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-09-20 13:47:00,073 INFO L385 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-09-20 13:47:00,073 INFO L386 AbstractCegarLoop]: Difference is false [2018-09-20 13:47:00,073 INFO L387 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-09-20 13:47:00,073 INFO L392 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-09-20 13:47:00,094 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states. [2018-09-20 13:47:00,101 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2018-09-20 13:47:00,101 INFO L368 BasicCegarLoop]: Found error trace [2018-09-20 13:47:00,102 INFO L376 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-20 13:47:00,105 INFO L423 AbstractCegarLoop]: === Iteration 1 === [bugCastingErr0ASSERT_VIOLATIONERROR_FUNCTION, bugErr0ASSERT_VIOLATIONERROR_FUNCTION, bugBrokenOutErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-20 13:47:00,111 INFO L82 PathProgramCache]: Analyzing trace with hash -2055741580, now seen corresponding path program 1 times [2018-09-20 13:47:00,113 INFO L227 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-09-20 13:47:00,114 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-09-20 13:47:00,164 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-20 13:47:00,165 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-20 13:47:00,165 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-20 13:47:00,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-09-20 13:47:00,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-09-20 13:47:00,216 INFO L443 BasicCegarLoop]: Counterexample might be feasible [2018-09-20 13:47:00,239 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.09 01:47:00 BoogieIcfgContainer [2018-09-20 13:47:00,240 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-09-20 13:47:00,240 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-09-20 13:47:00,240 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-09-20 13:47:00,241 INFO L276 PluginConnector]: Witness Printer initialized [2018-09-20 13:47:00,241 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.09 01:46:59" (3/4) ... [2018-09-20 13:47:00,248 INFO L147 WitnessPrinter]: No result that supports witness generation found [2018-09-20 13:47:00,248 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-09-20 13:47:00,249 INFO L168 Benchmark]: Toolchain (without parser) took 1218.99 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 149.9 MB). Free memory was 954.5 MB in the beginning and 1.1 GB in the end (delta: -163.7 MB). There was no memory consumed. Max. memory is 11.5 GB. [2018-09-20 13:47:00,254 INFO L168 Benchmark]: CDTParser took 0.21 ms. Allocated memory is still 1.0 GB. Free memory is still 978.7 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-09-20 13:47:00,255 INFO L168 Benchmark]: CACSL2BoogieTranslator took 325.10 ms. Allocated memory is still 1.0 GB. Free memory was 954.5 MB in the beginning and 943.6 MB in the end (delta: 10.9 MB). Peak memory consumption was 10.9 MB. Max. memory is 11.5 GB. [2018-09-20 13:47:00,259 INFO L168 Benchmark]: Boogie Preprocessor took 41.30 ms. Allocated memory is still 1.0 GB. Free memory is still 943.6 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-09-20 13:47:00,260 INFO L168 Benchmark]: RCFGBuilder took 586.20 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 149.9 MB). Free memory was 943.6 MB in the beginning and 1.1 GB in the end (delta: -188.3 MB). Peak memory consumption was 26.8 MB. Max. memory is 11.5 GB. [2018-09-20 13:47:00,261 INFO L168 Benchmark]: TraceAbstraction took 252.14 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: 13.7 MB). Peak memory consumption was 13.7 MB. Max. memory is 11.5 GB. [2018-09-20 13:47:00,265 INFO L168 Benchmark]: Witness Printer took 8.10 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 13:47:00,274 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21 ms. Allocated memory is still 1.0 GB. Free memory is still 978.7 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 325.10 ms. Allocated memory is still 1.0 GB. Free memory was 954.5 MB in the beginning and 943.6 MB in the end (delta: 10.9 MB). Peak memory consumption was 10.9 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 41.30 ms. Allocated memory is still 1.0 GB. Free memory is still 943.6 MB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 586.20 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 149.9 MB). Free memory was 943.6 MB in the beginning and 1.1 GB in the end (delta: -188.3 MB). Peak memory consumption was 26.8 MB. Max. memory is 11.5 GB. * TraceAbstraction took 252.14 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: 13.7 MB). Peak memory consumption was 13.7 MB. Max. memory is 11.5 GB. * Witness Printer took 8.10 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: 10]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: overapproximation of someBinaryFLOATComparisonOperation at line 10, overapproximation of someBinaryArithmeticDOUBLEoperation at line 7, overapproximation of someBinaryArithmeticFLOAToperation at line 8. Possible FailurePath: [L37] float f=__VERIFIER_nondet_float(); [L38] CALL bug(f) VAL [\old(min)=0] [L7] float modifier = (0x1.0p-23 * (1<<1)); [L8] float ulpdiff = min * modifier; VAL [\old(min)=0, min=0] [L10] COND TRUE !(ulpdiff == 0x1p-126f) VAL [\old(min)=0, min=0] [L10] __VERIFIER_error() VAL [\old(min)=0, min=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 6 procedures, 33 locations, 3 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=33occurred 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, 9 NumberOfCodeBlocks, 9 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 13:47:02,817 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-09-20 13:47:02,819 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-09-20 13:47:02,835 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-09-20 13:47:02,836 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-09-20 13:47:02,837 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-09-20 13:47:02,838 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-09-20 13:47:02,840 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-09-20 13:47:02,842 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-09-20 13:47:02,842 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-09-20 13:47:02,843 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-09-20 13:47:02,844 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-09-20 13:47:02,845 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-09-20 13:47:02,848 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-09-20 13:47:02,850 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-09-20 13:47:02,851 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-09-20 13:47:02,852 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-09-20 13:47:02,855 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-09-20 13:47:02,857 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-09-20 13:47:02,862 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-09-20 13:47:02,863 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-09-20 13:47:02,864 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-09-20 13:47:02,874 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-09-20 13:47:02,874 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-09-20 13:47:02,874 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-09-20 13:47:02,875 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-09-20 13:47:02,878 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-09-20 13:47:02,879 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-09-20 13:47:02,881 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-09-20 13:47:02,883 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-09-20 13:47:02,883 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-09-20 13:47:02,885 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-09-20 13:47:02,885 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-09-20 13:47:02,885 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-09-20 13:47:02,887 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-09-20 13:47:02,889 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-09-20 13:47:02,889 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2018-09-20 13:47:02,922 INFO L110 SettingsManager]: Loading preferences was successful [2018-09-20 13:47:02,922 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-09-20 13:47:02,925 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-09-20 13:47:02,926 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-09-20 13:47:02,927 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-09-20 13:47:02,927 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-09-20 13:47:02,927 INFO L133 SettingsManager]: * Use SBE=true [2018-09-20 13:47:02,928 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-09-20 13:47:02,928 INFO L133 SettingsManager]: * sizeof long=4 [2018-09-20 13:47:02,928 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-09-20 13:47:02,928 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-09-20 13:47:02,931 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-09-20 13:47:02,931 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-09-20 13:47:02,931 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-09-20 13:47:02,931 INFO L133 SettingsManager]: * Use bitvectors instead of ints=true [2018-09-20 13:47:02,931 INFO L133 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2018-09-20 13:47:02,931 INFO L133 SettingsManager]: * sizeof long double=12 [2018-09-20 13:47:02,932 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-09-20 13:47:02,932 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-09-20 13:47:02,932 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-09-20 13:47:02,932 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-09-20 13:47:02,932 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-09-20 13:47:02,933 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-09-20 13:47:02,933 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-09-20 13:47:02,933 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-09-20 13:47:02,933 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-09-20 13:47:02,937 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-09-20 13:47:02,937 INFO L133 SettingsManager]: * Trace refinement strategy=WOLF [2018-09-20 13:47:02,937 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-09-20 13:47:02,937 INFO L133 SettingsManager]: * Command for external solver=cvc4nyu --tear-down-incremental --rewrite-divk --print-success --lang smt [2018-09-20 13:47:02,937 INFO L133 SettingsManager]: * Logic for external solver=AUFBV [2018-09-20 13:47:02,938 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 -> 0141f30eebc41972a05a5b9a00ccec3818dc94e8 [2018-09-20 13:47:03,030 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-09-20 13:47:03,049 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-09-20 13:47:03,054 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-09-20 13:47:03,056 INFO L271 PluginConnector]: Initializing CDTParser... [2018-09-20 13:47:03,056 INFO L276 PluginConnector]: CDTParser initialized [2018-09-20 13:47:03,057 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/floats-cbmc-regression/float20_true-unreach-call_true-termination.i [2018-09-20 13:47:03,461 INFO L221 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4c84d5ce5/31278e5c86bf4e568b86c52683f11dc1/FLAG019aca9b4 [2018-09-20 13:47:03,611 INFO L277 CDTParser]: Found 1 translation units. [2018-09-20 13:47:03,612 INFO L159 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/floats-cbmc-regression/float20_true-unreach-call_true-termination.i [2018-09-20 13:47:03,619 INFO L325 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4c84d5ce5/31278e5c86bf4e568b86c52683f11dc1/FLAG019aca9b4 [2018-09-20 13:47:03,637 INFO L333 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4c84d5ce5/31278e5c86bf4e568b86c52683f11dc1 [2018-09-20 13:47:03,642 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-09-20 13:47:03,645 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-09-20 13:47:03,647 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-09-20 13:47:03,647 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-09-20 13:47:03,654 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-09-20 13:47:03,656 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.09 01:47:03" (1/1) ... [2018-09-20 13:47:03,659 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@10e021a0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:47:03, skipping insertion in model container [2018-09-20 13:47:03,659 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.09 01:47:03" (1/1) ... [2018-09-20 13:47:03,672 INFO L160 ieTranslatorObserver]: Starting translation in SV-COMP mode [2018-09-20 13:47:03,920 INFO L170 PostProcessor]: Settings: Checked method=main [2018-09-20 13:47:03,941 INFO L424 MainDispatcher]: Starting main dispatcher in SV-COMP mode [2018-09-20 13:47:03,958 INFO L170 PostProcessor]: Settings: Checked method=main [2018-09-20 13:47:03,987 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:47:03 WrapperNode [2018-09-20 13:47:03,988 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-09-20 13:47:03,988 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-09-20 13:47:03,989 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-09-20 13:47:03,989 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-09-20 13:47:04,004 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:47:03" (1/1) ... [2018-09-20 13:47:04,005 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:47:03" (1/1) ... [2018-09-20 13:47:04,015 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:47:03" (1/1) ... [2018-09-20 13:47:04,015 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:47:03" (1/1) ... [2018-09-20 13:47:04,019 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:47:03" (1/1) ... [2018-09-20 13:47:04,022 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:47:03" (1/1) ... [2018-09-20 13:47:04,024 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:47:03" (1/1) ... [2018-09-20 13:47:04,027 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-09-20 13:47:04,028 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-09-20 13:47:04,029 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-09-20 13:47:04,029 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-09-20 13:47:04,030 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:47:03" (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 13:47:04,087 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-09-20 13:47:04,088 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-09-20 13:47:04,088 INFO L138 BoogieDeclarations]: Found implementation of procedure bug [2018-09-20 13:47:04,088 INFO L138 BoogieDeclarations]: Found implementation of procedure bugBrokenOut [2018-09-20 13:47:04,089 INFO L138 BoogieDeclarations]: Found implementation of procedure bugCasting [2018-09-20 13:47:04,089 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-09-20 13:47:04,089 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assume [2018-09-20 13:47:04,089 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2018-09-20 13:47:04,092 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_float [2018-09-20 13:47:04,092 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_double [2018-09-20 13:47:04,093 INFO L130 BoogieDeclarations]: Found specification of procedure bug [2018-09-20 13:47:04,093 INFO L130 BoogieDeclarations]: Found specification of procedure bugBrokenOut [2018-09-20 13:47:04,093 INFO L130 BoogieDeclarations]: Found specification of procedure bugCasting [2018-09-20 13:47:04,093 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-09-20 13:47:04,093 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-09-20 13:47:04,093 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-09-20 13:47:05,497 INFO L365 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-09-20 13:47:05,497 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.09 01:47:05 BoogieIcfgContainer [2018-09-20 13:47:05,498 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-09-20 13:47:05,499 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-09-20 13:47:05,500 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-09-20 13:47:05,503 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-09-20 13:47:05,504 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.09 01:47:03" (1/3) ... [2018-09-20 13:47:05,505 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7e3cd60e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.09 01:47:05, skipping insertion in model container [2018-09-20 13:47:05,505 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:47:03" (2/3) ... [2018-09-20 13:47:05,506 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7e3cd60e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.09 01:47:05, skipping insertion in model container [2018-09-20 13:47:05,506 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.09 01:47:05" (3/3) ... [2018-09-20 13:47:05,509 INFO L112 eAbstractionObserver]: Analyzing ICFG float20_true-unreach-call_true-termination.i [2018-09-20 13:47:05,525 INFO L137 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-09-20 13:47:05,532 INFO L149 ceAbstractionStarter]: Appying trace abstraction to program that has 3 error locations. [2018-09-20 13:47:05,577 INFO L130 ementStrategyFactory]: Using default assertion order modulation [2018-09-20 13:47:05,578 INFO L381 AbstractCegarLoop]: Interprodecural is true [2018-09-20 13:47:05,578 INFO L382 AbstractCegarLoop]: Hoare is true [2018-09-20 13:47:05,578 INFO L383 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-09-20 13:47:05,578 INFO L384 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-09-20 13:47:05,579 INFO L385 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-09-20 13:47:05,579 INFO L386 AbstractCegarLoop]: Difference is false [2018-09-20 13:47:05,579 INFO L387 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-09-20 13:47:05,579 INFO L392 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-09-20 13:47:05,597 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states. [2018-09-20 13:47:05,603 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2018-09-20 13:47:05,604 INFO L368 BasicCegarLoop]: Found error trace [2018-09-20 13:47:05,606 INFO L376 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-20 13:47:05,609 INFO L423 AbstractCegarLoop]: === Iteration 1 === [bugCastingErr0ASSERT_VIOLATIONERROR_FUNCTION, bugErr0ASSERT_VIOLATIONERROR_FUNCTION, bugBrokenOutErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-20 13:47:05,615 INFO L82 PathProgramCache]: Analyzing trace with hash -2055741580, now seen corresponding path program 1 times [2018-09-20 13:47:05,620 INFO L227 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-09-20 13:47:05,621 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 13:47:05,632 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-20 13:47:05,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-20 13:47:05,728 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-20 13:47:05,974 WARN L178 SmtUtils]: Spent 100.00 ms on a formula simplification that was a NOOP. DAG size: 16 [2018-09-20 13:47:06,032 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 13:47:06,033 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-09-20 13:47:06,045 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-20 13:47:06,046 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-09-20 13:47:06,050 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-09-20 13:47:06,063 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-09-20 13:47:06,063 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-09-20 13:47:06,066 INFO L87 Difference]: Start difference. First operand 33 states. Second operand 3 states. [2018-09-20 13:47:06,120 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-20 13:47:06,120 INFO L93 Difference]: Finished difference Result 56 states and 61 transitions. [2018-09-20 13:47:06,125 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-09-20 13:47:06,127 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 9 [2018-09-20 13:47:06,128 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-20 13:47:06,137 INFO L225 Difference]: With dead ends: 56 [2018-09-20 13:47:06,137 INFO L226 Difference]: Without dead ends: 24 [2018-09-20 13:47:06,141 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-09-20 13:47:06,161 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24 states. [2018-09-20 13:47:06,178 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24 to 24. [2018-09-20 13:47:06,179 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 24 states. [2018-09-20 13:47:06,181 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 23 transitions. [2018-09-20 13:47:06,182 INFO L78 Accepts]: Start accepts. Automaton has 24 states and 23 transitions. Word has length 9 [2018-09-20 13:47:06,182 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-20 13:47:06,183 INFO L480 AbstractCegarLoop]: Abstraction has 24 states and 23 transitions. [2018-09-20 13:47:06,183 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-09-20 13:47:06,183 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 23 transitions. [2018-09-20 13:47:06,184 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2018-09-20 13:47:06,184 INFO L368 BasicCegarLoop]: Found error trace [2018-09-20 13:47:06,185 INFO L376 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-20 13:47:06,185 INFO L423 AbstractCegarLoop]: === Iteration 2 === [bugCastingErr0ASSERT_VIOLATIONERROR_FUNCTION, bugErr0ASSERT_VIOLATIONERROR_FUNCTION, bugBrokenOutErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-20 13:47:06,185 INFO L82 PathProgramCache]: Analyzing trace with hash -807154991, now seen corresponding path program 1 times [2018-09-20 13:47:06,186 INFO L227 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-09-20 13:47:06,186 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) Waiting until toolchain timeout for monitored process 3 with mathsat -unsat_core_generation=3 [2018-09-20 13:47:06,198 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-20 13:47:06,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-20 13:47:06,460 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-20 13:47:10,175 WARN L178 SmtUtils]: Spent 1.41 s on a formula simplification that was a NOOP. DAG size: 19 [2018-09-20 13:47:10,950 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 13:47:10,950 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-09-20 13:47:10,967 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-20 13:47:10,967 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-09-20 13:47:10,970 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-09-20 13:47:10,970 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-09-20 13:47:10,970 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-09-20 13:47:10,971 INFO L87 Difference]: Start difference. First operand 24 states and 23 transitions. Second operand 3 states. [2018-09-20 13:47:11,545 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-20 13:47:11,545 INFO L93 Difference]: Finished difference Result 24 states and 23 transitions. [2018-09-20 13:47:11,582 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-09-20 13:47:11,583 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 15 [2018-09-20 13:47:11,583 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-20 13:47:11,584 INFO L225 Difference]: With dead ends: 24 [2018-09-20 13:47:11,584 INFO L226 Difference]: Without dead ends: 22 [2018-09-20 13:47:11,585 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 3.7s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-09-20 13:47:11,585 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22 states. [2018-09-20 13:47:11,589 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22 to 22. [2018-09-20 13:47:11,589 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 22 states. [2018-09-20 13:47:11,590 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 21 transitions. [2018-09-20 13:47:11,591 INFO L78 Accepts]: Start accepts. Automaton has 22 states and 21 transitions. Word has length 15 [2018-09-20 13:47:11,591 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-20 13:47:11,591 INFO L480 AbstractCegarLoop]: Abstraction has 22 states and 21 transitions. [2018-09-20 13:47:11,591 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-09-20 13:47:11,591 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 21 transitions. [2018-09-20 13:47:11,592 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2018-09-20 13:47:11,592 INFO L368 BasicCegarLoop]: Found error trace [2018-09-20 13:47:11,592 INFO L376 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-20 13:47:11,593 INFO L423 AbstractCegarLoop]: === Iteration 3 === [bugCastingErr0ASSERT_VIOLATIONERROR_FUNCTION, bugErr0ASSERT_VIOLATIONERROR_FUNCTION, bugBrokenOutErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-20 13:47:11,593 INFO L82 PathProgramCache]: Analyzing trace with hash -241350324, now seen corresponding path program 1 times [2018-09-20 13:47:11,595 INFO L227 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-09-20 13:47:11,595 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 4 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with mathsat -unsat_core_generation=3 [2018-09-20 13:47:11,605 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-20 13:47:11,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-20 13:47:11,885 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-20 13:47:12,159 WARN L178 SmtUtils]: Spent 119.00 ms on a formula simplification that was a NOOP. DAG size: 10 [2018-09-20 13:47:12,218 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 13:47:12,219 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-09-20 13:47:12,236 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-20 13:47:12,237 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-09-20 13:47:12,237 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-09-20 13:47:12,238 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-09-20 13:47:12,238 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-09-20 13:47:12,238 INFO L87 Difference]: Start difference. First operand 22 states and 21 transitions. Second operand 3 states. [2018-09-20 13:47:12,242 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-20 13:47:12,243 INFO L93 Difference]: Finished difference Result 22 states and 21 transitions. [2018-09-20 13:47:12,243 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-09-20 13:47:12,243 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 21 [2018-09-20 13:47:12,243 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-20 13:47:12,244 INFO L225 Difference]: With dead ends: 22 [2018-09-20 13:47:12,244 INFO L226 Difference]: Without dead ends: 0 [2018-09-20 13:47:12,246 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-09-20 13:47:12,247 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-09-20 13:47:12,248 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-09-20 13:47:12,248 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-09-20 13:47:12,248 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-09-20 13:47:12,248 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 21 [2018-09-20 13:47:12,248 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-20 13:47:12,248 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-09-20 13:47:12,249 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-09-20 13:47:12,249 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-09-20 13:47:12,249 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-09-20 13:47:12,258 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2018-09-20 13:47:12,434 INFO L426 ceAbstractionStarter]: For program point L31(line 31) no Hoare annotation was computed. [2018-09-20 13:47:12,434 INFO L426 ceAbstractionStarter]: For program point L31-1(line 31) no Hoare annotation was computed. [2018-09-20 13:47:12,434 INFO L426 ceAbstractionStarter]: For program point bugCastingEXIT(lines 26 34) no Hoare annotation was computed. [2018-09-20 13:47:12,435 INFO L426 ceAbstractionStarter]: For program point L31-3(lines 26 34) no Hoare annotation was computed. [2018-09-20 13:47:12,435 INFO L429 ceAbstractionStarter]: At program point bugCastingENTRY(lines 26 34) the Hoare annotation is: true [2018-09-20 13:47:12,435 INFO L426 ceAbstractionStarter]: For program point bugCastingErr0ASSERT_VIOLATIONERROR_FUNCTION(line 31) no Hoare annotation was computed. [2018-09-20 13:47:12,436 INFO L429 ceAbstractionStarter]: At program point ULTIMATE.initFINAL(line -1) the Hoare annotation is: true [2018-09-20 13:47:12,436 INFO L426 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2018-09-20 13:47:12,437 INFO L429 ceAbstractionStarter]: At program point bugENTRY(lines 5 13) the Hoare annotation is: true [2018-09-20 13:47:12,437 INFO L426 ceAbstractionStarter]: For program point bugEXIT(lines 5 13) no Hoare annotation was computed. [2018-09-20 13:47:12,437 INFO L426 ceAbstractionStarter]: For program point L10(line 10) no Hoare annotation was computed. [2018-09-20 13:47:12,437 INFO L426 ceAbstractionStarter]: For program point L10-1(line 10) no Hoare annotation was computed. [2018-09-20 13:47:12,437 INFO L426 ceAbstractionStarter]: For program point L10-3(lines 5 13) no Hoare annotation was computed. [2018-09-20 13:47:12,437 INFO L426 ceAbstractionStarter]: For program point bugErr0ASSERT_VIOLATIONERROR_FUNCTION(line 10) no Hoare annotation was computed. [2018-09-20 13:47:12,438 INFO L426 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2018-09-20 13:47:12,438 INFO L429 ceAbstractionStarter]: At program point L-1(line -1) the Hoare annotation is: true [2018-09-20 13:47:12,438 INFO L429 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2018-09-20 13:47:12,438 INFO L426 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2018-09-20 13:47:12,438 INFO L429 ceAbstractionStarter]: At program point mainENTRY(lines 36 47) the Hoare annotation is: true [2018-09-20 13:47:12,440 INFO L426 ceAbstractionStarter]: For program point mainFINAL(lines 36 47) no Hoare annotation was computed. [2018-09-20 13:47:12,440 INFO L429 ceAbstractionStarter]: At program point L44(line 44) the Hoare annotation is: true [2018-09-20 13:47:12,441 INFO L426 ceAbstractionStarter]: For program point L44-1(line 44) no Hoare annotation was computed. [2018-09-20 13:47:12,441 INFO L429 ceAbstractionStarter]: At program point L41(line 41) the Hoare annotation is: true [2018-09-20 13:47:12,441 INFO L426 ceAbstractionStarter]: For program point mainEXIT(lines 36 47) no Hoare annotation was computed. [2018-09-20 13:47:12,441 INFO L426 ceAbstractionStarter]: For program point L41-1(line 41) no Hoare annotation was computed. [2018-09-20 13:47:12,441 INFO L429 ceAbstractionStarter]: At program point L38(line 38) the Hoare annotation is: true [2018-09-20 13:47:12,442 INFO L426 ceAbstractionStarter]: For program point L38-1(line 38) no Hoare annotation was computed. [2018-09-20 13:47:12,442 INFO L426 ceAbstractionStarter]: For program point bugBrokenOutEXIT(lines 15 24) no Hoare annotation was computed. [2018-09-20 13:47:12,443 INFO L426 ceAbstractionStarter]: For program point L21(line 21) no Hoare annotation was computed. [2018-09-20 13:47:12,443 INFO L426 ceAbstractionStarter]: For program point L21-1(line 21) no Hoare annotation was computed. [2018-09-20 13:47:12,443 INFO L426 ceAbstractionStarter]: For program point bugBrokenOutErr0ASSERT_VIOLATIONERROR_FUNCTION(line 21) no Hoare annotation was computed. [2018-09-20 13:47:12,443 INFO L429 ceAbstractionStarter]: At program point bugBrokenOutENTRY(lines 15 24) the Hoare annotation is: true [2018-09-20 13:47:12,443 INFO L426 ceAbstractionStarter]: For program point L21-3(lines 15 24) no Hoare annotation was computed. [2018-09-20 13:47:12,449 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.09 01:47:12 BoogieIcfgContainer [2018-09-20 13:47:12,449 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-09-20 13:47:12,450 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-09-20 13:47:12,450 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-09-20 13:47:12,450 INFO L276 PluginConnector]: Witness Printer initialized [2018-09-20 13:47:12,452 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.09 01:47:05" (3/4) ... [2018-09-20 13:47:12,456 INFO L144 WitnessPrinter]: Generating witness for correct program [2018-09-20 13:47:12,465 INFO L316 RCFGBacktranslator]: Ignoring RootEdge to procedure bugCasting [2018-09-20 13:47:12,465 INFO L316 RCFGBacktranslator]: Ignoring RootEdge to procedure ULTIMATE.init [2018-09-20 13:47:12,466 INFO L316 RCFGBacktranslator]: Ignoring RootEdge to procedure bug [2018-09-20 13:47:12,466 INFO L316 RCFGBacktranslator]: Ignoring RootEdge to procedure main [2018-09-20 13:47:12,466 INFO L316 RCFGBacktranslator]: Ignoring RootEdge to procedure bugBrokenOut [2018-09-20 13:47:12,473 INFO L850 BoogieBacktranslator]: Reduced CFG by removing 11 nodes and edges [2018-09-20 13:47:12,473 INFO L850 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2018-09-20 13:47:12,474 INFO L850 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2018-09-20 13:47:12,536 INFO L145 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2018-09-20 13:47:12,536 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-09-20 13:47:12,538 INFO L168 Benchmark]: Toolchain (without parser) took 8894.73 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 145.2 MB). Free memory was 953.2 MB in the beginning and 1.1 GB in the end (delta: -116.4 MB). Peak memory consumption was 28.8 MB. Max. memory is 11.5 GB. [2018-09-20 13:47:12,539 INFO L168 Benchmark]: CDTParser took 0.24 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 13:47:12,539 INFO L168 Benchmark]: CACSL2BoogieTranslator took 341.20 ms. Allocated memory is still 1.0 GB. Free memory was 953.2 MB in the beginning and 942.3 MB in the end (delta: 10.9 MB). Peak memory consumption was 10.9 MB. Max. memory is 11.5 GB. [2018-09-20 13:47:12,540 INFO L168 Benchmark]: Boogie Preprocessor took 39.38 ms. Allocated memory is still 1.0 GB. Free memory was 942.3 MB in the beginning and 936.9 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. [2018-09-20 13:47:12,544 INFO L168 Benchmark]: RCFGBuilder took 1469.64 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 145.2 MB). Free memory was 936.9 MB in the beginning and 1.1 GB in the end (delta: -188.4 MB). Peak memory consumption was 21.8 MB. Max. memory is 11.5 GB. [2018-09-20 13:47:12,545 INFO L168 Benchmark]: TraceAbstraction took 6950.32 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: 55.8 MB). Peak memory consumption was 55.8 MB. Max. memory is 11.5 GB. [2018-09-20 13:47:12,545 INFO L168 Benchmark]: Witness Printer took 86.04 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 13:47:12,550 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.24 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 341.20 ms. Allocated memory is still 1.0 GB. Free memory was 953.2 MB in the beginning and 942.3 MB in the end (delta: 10.9 MB). Peak memory consumption was 10.9 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 39.38 ms. Allocated memory is still 1.0 GB. Free memory was 942.3 MB in the beginning and 936.9 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. * RCFGBuilder took 1469.64 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 145.2 MB). Free memory was 936.9 MB in the beginning and 1.1 GB in the end (delta: -188.4 MB). Peak memory consumption was 21.8 MB. Max. memory is 11.5 GB. * TraceAbstraction took 6950.32 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: 55.8 MB). Peak memory consumption was 55.8 MB. Max. memory is 11.5 GB. * Witness Printer took 86.04 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: 31]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 10]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 21]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 3 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 6 procedures, 33 locations, 3 error locations. SAFE Result, 6.8s OverallTime, 3 OverallIterations, 1 TraceHistogramMax, 0.7s AutomataDifference, 0.0s DeadEndRemovalTime, 0.1s HoareAnnotationTime, HoareTripleCheckerStatistics: 68 SDtfs, 4 SDslu, 63 SDs, 0 SdLazy, 2 SolverSat, 0 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.5s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 42 GetRequests, 39 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 4.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=33occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s AbstIntTime, 0 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 3 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 10 LocationsWithAnnotation, 12 PreInvPairs, 14 NumberOfFragments, 10 HoareAnnotationTreeSize, 12 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 10 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.1s HoareSimplificationTimeInter, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.5s SatisfiabilityAnalysisTime, 5.1s InterpolantComputationTime, 45 NumberOfCodeBlocks, 45 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 42 ConstructedInterpolants, 3 QuantifiedInterpolants, 1426 SizeOfPredicates, 9 NumberOfNonLiveVariables, 94 ConjunctsInSsa, 12 ConjunctsInUnsatCore, 3 InterpolantComputations, 3 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...