/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/Ultimate.py --spec ../../../trunk/examples/svcomp/ReachSafety.prp --file ../../../trunk/examples/svcomp/float-newlib/float_req_bl_1032d_true-unreach-call.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 40ef5092 Calling Ultimate with: java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx12G -Xms1G -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../../../trunk/examples/svcomp/float-newlib/float_req_bl_1032d_true-unreach-call.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(__VERIFIER_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 55e25fd47a6133e138b684ec17fad2c015ceccf7 ............................................................................................................................................................................................................................................................................................................ Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis Calling Ultimate with: java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx12G -Xms1G -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../../../trunk/examples/svcomp/float-newlib/float_req_bl_1032d_true-unreach-call.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(__VERIFIER_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 55e25fd47a6133e138b684ec17fad2c015ceccf7 .................................................................................................................................................................................................................................................................................................................................................................................................................................... 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 15:29:55,167 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-09-20 15:29:55,169 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-09-20 15:29:55,188 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-09-20 15:29:55,188 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-09-20 15:29:55,190 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-09-20 15:29:55,192 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-09-20 15:29:55,194 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-09-20 15:29:55,196 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-09-20 15:29:55,197 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-09-20 15:29:55,198 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-09-20 15:29:55,198 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-09-20 15:29:55,199 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-09-20 15:29:55,201 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-09-20 15:29:55,202 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-09-20 15:29:55,203 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-09-20 15:29:55,204 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-09-20 15:29:55,211 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-09-20 15:29:55,213 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-09-20 15:29:55,217 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-09-20 15:29:55,222 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-09-20 15:29:55,223 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-09-20 15:29:55,228 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-09-20 15:29:55,231 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-09-20 15:29:55,234 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-09-20 15:29:55,236 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-09-20 15:29:55,237 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-09-20 15:29:55,240 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-09-20 15:29:55,241 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-09-20 15:29:55,245 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-09-20 15:29:55,245 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-09-20 15:29:55,246 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-09-20 15:29:55,246 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-09-20 15:29:55,248 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-09-20 15:29:55,250 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-09-20 15:29:55,250 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-09-20 15:29:55,253 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2018-09-20 15:29:55,268 INFO L110 SettingsManager]: Loading preferences was successful [2018-09-20 15:29:55,269 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-09-20 15:29:55,270 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-09-20 15:29:55,270 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-09-20 15:29:55,270 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-09-20 15:29:55,271 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-09-20 15:29:55,271 INFO L133 SettingsManager]: * Use SBE=true [2018-09-20 15:29:55,271 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-09-20 15:29:55,271 INFO L133 SettingsManager]: * sizeof long=4 [2018-09-20 15:29:55,271 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-09-20 15:29:55,271 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-09-20 15:29:55,272 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-09-20 15:29:55,272 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-09-20 15:29:55,272 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-09-20 15:29:55,272 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-09-20 15:29:55,272 INFO L133 SettingsManager]: * sizeof long double=12 [2018-09-20 15:29:55,272 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-09-20 15:29:55,273 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-09-20 15:29:55,273 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-09-20 15:29:55,273 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-09-20 15:29:55,273 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-09-20 15:29:55,273 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-09-20 15:29:55,274 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-09-20 15:29:55,274 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-09-20 15:29:55,274 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-09-20 15:29:55,274 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-09-20 15:29:55,274 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-09-20 15:29:55,274 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-09-20 15:29:55,275 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-09-20 15:29:55,275 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 -> 55e25fd47a6133e138b684ec17fad2c015ceccf7 [2018-09-20 15:29:55,336 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-09-20 15:29:55,356 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-09-20 15:29:55,364 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-09-20 15:29:55,366 INFO L271 PluginConnector]: Initializing CDTParser... [2018-09-20 15:29:55,368 INFO L276 PluginConnector]: CDTParser initialized [2018-09-20 15:29:55,369 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/float-newlib/float_req_bl_1032d_true-unreach-call.c [2018-09-20 15:29:55,718 INFO L221 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f0f038efd/b29af208329243669e00c97de18936a8/FLAG85347f992 [2018-09-20 15:29:55,859 INFO L277 CDTParser]: Found 1 translation units. [2018-09-20 15:29:55,860 INFO L159 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/float-newlib/float_req_bl_1032d_true-unreach-call.c [2018-09-20 15:29:55,868 INFO L325 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f0f038efd/b29af208329243669e00c97de18936a8/FLAG85347f992 [2018-09-20 15:29:55,885 INFO L333 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f0f038efd/b29af208329243669e00c97de18936a8 [2018-09-20 15:29:55,890 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-09-20 15:29:55,893 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-09-20 15:29:55,899 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-09-20 15:29:55,900 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-09-20 15:29:55,907 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-09-20 15:29:55,908 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.09 03:29:55" (1/1) ... [2018-09-20 15:29:55,911 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@df94ec1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 03:29:55, skipping insertion in model container [2018-09-20 15:29:55,912 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.09 03:29:55" (1/1) ... [2018-09-20 15:29:55,924 INFO L160 ieTranslatorObserver]: Starting translation in SV-COMP mode [2018-09-20 15:29:56,200 INFO L170 PostProcessor]: Settings: Checked method=main [2018-09-20 15:29:56,219 INFO L424 MainDispatcher]: Starting main dispatcher in SV-COMP mode [2018-09-20 15:29:56,242 INFO L170 PostProcessor]: Settings: Checked method=main [2018-09-20 15:29:56,282 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 03:29:56 WrapperNode [2018-09-20 15:29:56,282 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-09-20 15:29:56,283 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-09-20 15:29:56,283 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-09-20 15:29:56,284 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-09-20 15:29:56,297 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 03:29:56" (1/1) ... [2018-09-20 15:29:56,298 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 03:29:56" (1/1) ... [2018-09-20 15:29:56,308 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 03:29:56" (1/1) ... [2018-09-20 15:29:56,309 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 03:29:56" (1/1) ... [2018-09-20 15:29:56,317 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 03:29:56" (1/1) ... [2018-09-20 15:29:56,323 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 03:29:56" (1/1) ... [2018-09-20 15:29:56,325 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 03:29:56" (1/1) ... [2018-09-20 15:29:56,328 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-09-20 15:29:56,329 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-09-20 15:29:56,329 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-09-20 15:29:56,330 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-09-20 15:29:56,331 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 03:29:56" (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 15:29:56,395 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-09-20 15:29:56,395 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-09-20 15:29:56,395 INFO L138 BoogieDeclarations]: Found implementation of procedure round_float [2018-09-20 15:29:56,395 INFO L138 BoogieDeclarations]: Found implementation of procedure isinf_float [2018-09-20 15:29:56,396 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-09-20 15:29:56,396 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2018-09-20 15:29:56,396 INFO L130 BoogieDeclarations]: Found specification of procedure round_float [2018-09-20 15:29:56,396 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-09-20 15:29:56,396 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2018-09-20 15:29:56,396 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2018-09-20 15:29:56,397 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-09-20 15:29:56,397 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2018-09-20 15:29:56,397 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2018-09-20 15:29:56,397 INFO L130 BoogieDeclarations]: Found specification of procedure isinf_float [2018-09-20 15:29:56,397 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-09-20 15:29:56,397 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-09-20 15:29:56,397 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-09-20 15:29:56,398 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~real [2018-09-20 15:29:56,398 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2018-09-20 15:29:57,031 INFO L365 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-09-20 15:29:57,031 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.09 03:29:57 BoogieIcfgContainer [2018-09-20 15:29:57,032 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-09-20 15:29:57,033 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-09-20 15:29:57,033 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-09-20 15:29:57,036 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-09-20 15:29:57,037 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.09 03:29:55" (1/3) ... [2018-09-20 15:29:57,038 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7bcc4b02 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.09 03:29:57, skipping insertion in model container [2018-09-20 15:29:57,038 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 03:29:56" (2/3) ... [2018-09-20 15:29:57,038 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7bcc4b02 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.09 03:29:57, skipping insertion in model container [2018-09-20 15:29:57,039 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.09 03:29:57" (3/3) ... [2018-09-20 15:29:57,041 INFO L112 eAbstractionObserver]: Analyzing ICFG float_req_bl_1032d_true-unreach-call.c [2018-09-20 15:29:57,053 INFO L137 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-09-20 15:29:57,062 INFO L149 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-09-20 15:29:57,117 INFO L130 ementStrategyFactory]: Using default assertion order modulation [2018-09-20 15:29:57,118 INFO L381 AbstractCegarLoop]: Interprodecural is true [2018-09-20 15:29:57,118 INFO L382 AbstractCegarLoop]: Hoare is true [2018-09-20 15:29:57,118 INFO L383 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-09-20 15:29:57,118 INFO L384 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-09-20 15:29:57,118 INFO L385 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-09-20 15:29:57,118 INFO L386 AbstractCegarLoop]: Difference is false [2018-09-20 15:29:57,118 INFO L387 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-09-20 15:29:57,119 INFO L392 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-09-20 15:29:57,139 INFO L276 IsEmpty]: Start isEmpty. Operand 61 states. [2018-09-20 15:29:57,147 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2018-09-20 15:29:57,148 INFO L368 BasicCegarLoop]: Found error trace [2018-09-20 15:29:57,149 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, 1, 1, 1] [2018-09-20 15:29:57,152 INFO L423 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-20 15:29:57,162 INFO L82 PathProgramCache]: Analyzing trace with hash -1306204284, now seen corresponding path program 1 times [2018-09-20 15:29:57,165 INFO L227 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-09-20 15:29:57,166 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-09-20 15:29:57,224 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-20 15:29:57,224 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-20 15:29:57,224 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-20 15:29:57,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-20 15:29:57,319 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 15:29:57,322 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-20 15:29:57,323 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-09-20 15:29:57,328 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-09-20 15:29:57,341 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-09-20 15:29:57,342 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-09-20 15:29:57,345 INFO L87 Difference]: Start difference. First operand 61 states. Second operand 2 states. [2018-09-20 15:29:57,373 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-20 15:29:57,373 INFO L93 Difference]: Finished difference Result 114 states and 137 transitions. [2018-09-20 15:29:57,374 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-09-20 15:29:57,375 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 24 [2018-09-20 15:29:57,376 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-20 15:29:57,387 INFO L225 Difference]: With dead ends: 114 [2018-09-20 15:29:57,387 INFO L226 Difference]: Without dead ends: 57 [2018-09-20 15:29:57,392 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-09-20 15:29:57,411 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 57 states. [2018-09-20 15:29:57,432 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 57 to 57. [2018-09-20 15:29:57,434 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 57 states. [2018-09-20 15:29:57,436 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 57 states to 57 states and 61 transitions. [2018-09-20 15:29:57,440 INFO L78 Accepts]: Start accepts. Automaton has 57 states and 61 transitions. Word has length 24 [2018-09-20 15:29:57,440 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-20 15:29:57,440 INFO L480 AbstractCegarLoop]: Abstraction has 57 states and 61 transitions. [2018-09-20 15:29:57,441 INFO L481 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-09-20 15:29:57,441 INFO L276 IsEmpty]: Start isEmpty. Operand 57 states and 61 transitions. [2018-09-20 15:29:57,443 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2018-09-20 15:29:57,443 INFO L368 BasicCegarLoop]: Found error trace [2018-09-20 15:29:57,444 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-20 15:29:57,444 INFO L423 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-20 15:29:57,444 INFO L82 PathProgramCache]: Analyzing trace with hash 485784064, now seen corresponding path program 1 times [2018-09-20 15:29:57,445 INFO L227 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-09-20 15:29:57,445 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-09-20 15:29:57,447 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-20 15:29:57,447 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-20 15:29:57,447 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-20 15:29:57,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-09-20 15:29:57,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-09-20 15:29:57,661 INFO L443 BasicCegarLoop]: Counterexample might be feasible [2018-09-20 15:29:57,715 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.09 03:29:57 BoogieIcfgContainer [2018-09-20 15:29:57,715 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-09-20 15:29:57,716 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-09-20 15:29:57,716 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-09-20 15:29:57,717 INFO L276 PluginConnector]: Witness Printer initialized [2018-09-20 15:29:57,718 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.09 03:29:57" (3/4) ... [2018-09-20 15:29:57,723 INFO L147 WitnessPrinter]: No result that supports witness generation found [2018-09-20 15:29:57,724 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-09-20 15:29:57,726 INFO L168 Benchmark]: Toolchain (without parser) took 1835.06 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 133.2 MB). Free memory was 950.5 MB in the beginning and 1.1 GB in the end (delta: -128.3 MB). Peak memory consumption was 4.9 MB. Max. memory is 11.5 GB. [2018-09-20 15:29:57,730 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 15:29:57,731 INFO L168 Benchmark]: CACSL2BoogieTranslator took 383.29 ms. Allocated memory is still 1.0 GB. Free memory was 950.5 MB in the beginning and 939.8 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2018-09-20 15:29:57,731 INFO L168 Benchmark]: Boogie Preprocessor took 45.50 ms. Allocated memory is still 1.0 GB. Free memory is still 939.8 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-09-20 15:29:57,733 INFO L168 Benchmark]: RCFGBuilder took 702.68 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 133.2 MB). Free memory was 939.8 MB in the beginning and 1.1 GB in the end (delta: -166.5 MB). Peak memory consumption was 27.3 MB. Max. memory is 11.5 GB. [2018-09-20 15:29:57,734 INFO L168 Benchmark]: TraceAbstraction took 683.00 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: 27.4 MB). Peak memory consumption was 27.4 MB. Max. memory is 11.5 GB. [2018-09-20 15:29:57,735 INFO L168 Benchmark]: Witness Printer took 8.56 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 15:29:57,743 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 383.29 ms. Allocated memory is still 1.0 GB. Free memory was 950.5 MB in the beginning and 939.8 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 45.50 ms. Allocated memory is still 1.0 GB. Free memory is still 939.8 MB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 702.68 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 133.2 MB). Free memory was 939.8 MB in the beginning and 1.1 GB in the end (delta: -166.5 MB). Peak memory consumption was 27.3 MB. Max. memory is 11.5 GB. * TraceAbstraction took 683.00 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: 27.4 MB). Peak memory consumption was 27.4 MB. Max. memory is 11.5 GB. * Witness Printer took 8.56 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: 78]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: overapproximation of someBinaryArithmeticFLOAToperation at line 42, overapproximation of bitwiseAnd at line 62. Possible FailurePath: [L73] float x = -1.0f / 0.0f; [L74] CALL, EXPR round_float(x) VAL [\old(x)=10] [L12] __uint32_t w; [L14] int exponent_less_127; VAL [\old(x)=10, x=10] [L17] FCALL ieee_float_shape_type gf_u; VAL [\old(x)=10, gf_u={5:0}, x=10] [L18] FCALL gf_u.value = (x) VAL [\old(x)=10, gf_u={5:0}, x=10] [L19] EXPR, FCALL gf_u.word VAL [\old(x)=10, gf_u={5:0}, gf_u.word=11, x=10] [L19] (w) = gf_u.word VAL [\old(x)=10, gf_u={5:0}, gf_u.word=11, w=11, x=10] [L19] FCALL (w) = gf_u.word VAL [(w) = gf_u.word=13, \old(x)=10, gf_u={5:0}, gf_u.word=11, w=11, x=10] [L20] COND FALSE !(0) VAL [\old(x)=10, w=11, x=10] [L22] exponent_less_127 = (int)((w & 0x7f800000) >> 23) - 127 VAL [\old(x)=10, exponent_less_127=128, w=11, x=10] [L24] COND FALSE !(exponent_less_127 < 23) VAL [\old(x)=10, exponent_less_127=128, w=11, x=10] [L40] COND TRUE exponent_less_127 == 128 [L42] RET return x + x; VAL [\old(x)=10, exponent_less_127=128, w=11, x=10] [L74] EXPR round_float(x) VAL [round_float(x)=9, x=10] [L74] float res = round_float(x); [L77] CALL, EXPR isinf_float(res) VAL [\old(x)=9] [L56] __int32_t ix; VAL [\old(x)=9, x=9] [L58] FCALL ieee_float_shape_type gf_u; VAL [\old(x)=9, gf_u={7:0}, x=9] [L59] FCALL gf_u.value = (x) VAL [\old(x)=9, gf_u={7:0}, x=9] [L60] EXPR, FCALL gf_u.word VAL [\old(x)=9, gf_u={7:0}, gf_u.word=3, x=9] [L60] (ix) = gf_u.word VAL [\old(x)=9, gf_u={7:0}, gf_u.word=3, ix=3, x=9] [L60] FCALL (ix) = gf_u.word VAL [(ix) = gf_u.word=8, \old(x)=9, gf_u={7:0}, gf_u.word=3, ix=3, x=9] [L61] COND FALSE !(0) VAL [\old(x)=9, ix=3, x=9] [L62] ix &= 0x7fffffff [L63] RET return ((ix) == 0x7f800000L); VAL [\old(x)=9, \result=0, ix=0, x=9] [L77] EXPR isinf_float(res) VAL [isinf_float(res)=0, res=9, x=10] [L77] COND TRUE !isinf_float(res) [L78] __VERIFIER_error() VAL [res=9, x=10] - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 61 locations, 1 error locations. UNSAFE Result, 0.6s OverallTime, 2 OverallIterations, 1 TraceHistogramMax, 0.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 65 SDtfs, 0 SDslu, 0 SDs, 0 SdLazy, 0 SolverSat, 0 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=61occurred 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: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 66 NumberOfCodeBlocks, 66 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 23 ConstructedInterpolants, 0 QuantifiedInterpolants, 529 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 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 15:30:00,147 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-09-20 15:30:00,150 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-09-20 15:30:00,169 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-09-20 15:30:00,170 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-09-20 15:30:00,172 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-09-20 15:30:00,173 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-09-20 15:30:00,176 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-09-20 15:30:00,180 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-09-20 15:30:00,182 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-09-20 15:30:00,185 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-09-20 15:30:00,185 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-09-20 15:30:00,186 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-09-20 15:30:00,189 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-09-20 15:30:00,197 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-09-20 15:30:00,197 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-09-20 15:30:00,198 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-09-20 15:30:00,202 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-09-20 15:30:00,207 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-09-20 15:30:00,208 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-09-20 15:30:00,212 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-09-20 15:30:00,213 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-09-20 15:30:00,216 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-09-20 15:30:00,219 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-09-20 15:30:00,219 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-09-20 15:30:00,221 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-09-20 15:30:00,222 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-09-20 15:30:00,223 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-09-20 15:30:00,223 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-09-20 15:30:00,227 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-09-20 15:30:00,227 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-09-20 15:30:00,228 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-09-20 15:30:00,228 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-09-20 15:30:00,230 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-09-20 15:30:00,231 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-09-20 15:30:00,233 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-09-20 15:30:00,235 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2018-09-20 15:30:00,262 INFO L110 SettingsManager]: Loading preferences was successful [2018-09-20 15:30:00,264 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-09-20 15:30:00,265 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-09-20 15:30:00,265 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-09-20 15:30:00,266 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-09-20 15:30:00,266 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-09-20 15:30:00,266 INFO L133 SettingsManager]: * Use SBE=true [2018-09-20 15:30:00,267 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-09-20 15:30:00,267 INFO L133 SettingsManager]: * sizeof long=4 [2018-09-20 15:30:00,267 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-09-20 15:30:00,267 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-09-20 15:30:00,267 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-09-20 15:30:00,269 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-09-20 15:30:00,269 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-09-20 15:30:00,270 INFO L133 SettingsManager]: * Use bitvectors instead of ints=true [2018-09-20 15:30:00,270 INFO L133 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2018-09-20 15:30:00,270 INFO L133 SettingsManager]: * sizeof long double=12 [2018-09-20 15:30:00,270 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-09-20 15:30:00,271 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-09-20 15:30:00,271 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-09-20 15:30:00,271 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-09-20 15:30:00,271 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-09-20 15:30:00,271 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-09-20 15:30:00,271 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-09-20 15:30:00,272 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-09-20 15:30:00,272 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-09-20 15:30:00,272 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-09-20 15:30:00,272 INFO L133 SettingsManager]: * Trace refinement strategy=WOLF [2018-09-20 15:30:00,272 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-09-20 15:30:00,275 INFO L133 SettingsManager]: * Command for external solver=cvc4nyu --tear-down-incremental --rewrite-divk --print-success --lang smt [2018-09-20 15:30:00,276 INFO L133 SettingsManager]: * Logic for external solver=AUFBV [2018-09-20 15:30:00,276 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 -> 55e25fd47a6133e138b684ec17fad2c015ceccf7 [2018-09-20 15:30:00,334 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-09-20 15:30:00,348 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-09-20 15:30:00,356 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-09-20 15:30:00,357 INFO L271 PluginConnector]: Initializing CDTParser... [2018-09-20 15:30:00,358 INFO L276 PluginConnector]: CDTParser initialized [2018-09-20 15:30:00,359 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/float-newlib/float_req_bl_1032d_true-unreach-call.c [2018-09-20 15:30:00,755 INFO L221 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e9bf1cb98/6eaec5b6c9a249e584e922a061949a62/FLAGb6e8f7f70 [2018-09-20 15:30:00,902 INFO L277 CDTParser]: Found 1 translation units. [2018-09-20 15:30:00,903 INFO L159 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/float-newlib/float_req_bl_1032d_true-unreach-call.c [2018-09-20 15:30:00,910 INFO L325 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e9bf1cb98/6eaec5b6c9a249e584e922a061949a62/FLAGb6e8f7f70 [2018-09-20 15:30:00,926 INFO L333 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e9bf1cb98/6eaec5b6c9a249e584e922a061949a62 [2018-09-20 15:30:00,930 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-09-20 15:30:00,933 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-09-20 15:30:00,934 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-09-20 15:30:00,935 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-09-20 15:30:00,942 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-09-20 15:30:00,943 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.09 03:30:00" (1/1) ... [2018-09-20 15:30:00,946 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@21c1eb6f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 03:30:00, skipping insertion in model container [2018-09-20 15:30:00,946 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.09 03:30:00" (1/1) ... [2018-09-20 15:30:00,959 INFO L160 ieTranslatorObserver]: Starting translation in SV-COMP mode [2018-09-20 15:30:01,175 INFO L170 PostProcessor]: Settings: Checked method=main [2018-09-20 15:30:01,195 INFO L424 MainDispatcher]: Starting main dispatcher in SV-COMP mode [2018-09-20 15:30:01,213 INFO L170 PostProcessor]: Settings: Checked method=main [2018-09-20 15:30:01,245 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 03:30:01 WrapperNode [2018-09-20 15:30:01,245 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-09-20 15:30:01,246 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-09-20 15:30:01,246 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-09-20 15:30:01,247 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-09-20 15:30:01,263 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 03:30:01" (1/1) ... [2018-09-20 15:30:01,264 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 03:30:01" (1/1) ... [2018-09-20 15:30:01,278 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 03:30:01" (1/1) ... [2018-09-20 15:30:01,279 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 03:30:01" (1/1) ... [2018-09-20 15:30:01,286 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 03:30:01" (1/1) ... [2018-09-20 15:30:01,292 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 03:30:01" (1/1) ... [2018-09-20 15:30:01,295 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 03:30:01" (1/1) ... [2018-09-20 15:30:01,300 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-09-20 15:30:01,300 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-09-20 15:30:01,300 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-09-20 15:30:01,300 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-09-20 15:30:01,302 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 03:30:01" (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 15:30:01,476 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-09-20 15:30:01,476 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-09-20 15:30:01,477 INFO L138 BoogieDeclarations]: Found implementation of procedure round_float [2018-09-20 15:30:01,477 INFO L138 BoogieDeclarations]: Found implementation of procedure isinf_float [2018-09-20 15:30:01,477 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-09-20 15:30:01,477 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2018-09-20 15:30:01,477 INFO L130 BoogieDeclarations]: Found specification of procedure round_float [2018-09-20 15:30:01,479 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-09-20 15:30:01,479 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4 [2018-09-20 15:30:01,479 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2018-09-20 15:30:01,479 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-09-20 15:30:01,480 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2018-09-20 15:30:01,480 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4 [2018-09-20 15:30:01,480 INFO L130 BoogieDeclarations]: Found specification of procedure isinf_float [2018-09-20 15:30:01,480 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-09-20 15:30:01,480 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-09-20 15:30:01,480 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-09-20 15:30:01,482 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intFLOATTYPE4 [2018-09-20 15:30:01,482 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE4 [2018-09-20 15:30:01,796 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-20 15:30:01,834 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-20 15:30:02,091 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-20 15:30:02,112 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-20 15:30:02,146 INFO L365 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-09-20 15:30:02,147 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.09 03:30:02 BoogieIcfgContainer [2018-09-20 15:30:02,147 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-09-20 15:30:02,149 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-09-20 15:30:02,149 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-09-20 15:30:02,153 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-09-20 15:30:02,153 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.09 03:30:00" (1/3) ... [2018-09-20 15:30:02,154 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@255010d2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.09 03:30:02, skipping insertion in model container [2018-09-20 15:30:02,155 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 03:30:01" (2/3) ... [2018-09-20 15:30:02,155 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@255010d2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.09 03:30:02, skipping insertion in model container [2018-09-20 15:30:02,155 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.09 03:30:02" (3/3) ... [2018-09-20 15:30:02,158 INFO L112 eAbstractionObserver]: Analyzing ICFG float_req_bl_1032d_true-unreach-call.c [2018-09-20 15:30:02,169 INFO L137 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-09-20 15:30:02,178 INFO L149 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-09-20 15:30:02,230 INFO L130 ementStrategyFactory]: Using default assertion order modulation [2018-09-20 15:30:02,231 INFO L381 AbstractCegarLoop]: Interprodecural is true [2018-09-20 15:30:02,231 INFO L382 AbstractCegarLoop]: Hoare is true [2018-09-20 15:30:02,231 INFO L383 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-09-20 15:30:02,231 INFO L384 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-09-20 15:30:02,231 INFO L385 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-09-20 15:30:02,232 INFO L386 AbstractCegarLoop]: Difference is false [2018-09-20 15:30:02,232 INFO L387 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-09-20 15:30:02,232 INFO L392 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-09-20 15:30:02,251 INFO L276 IsEmpty]: Start isEmpty. Operand 60 states. [2018-09-20 15:30:02,259 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2018-09-20 15:30:02,259 INFO L368 BasicCegarLoop]: Found error trace [2018-09-20 15:30:02,260 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, 1, 1] [2018-09-20 15:30:02,263 INFO L423 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-20 15:30:02,268 INFO L82 PathProgramCache]: Analyzing trace with hash 1940072417, now seen corresponding path program 1 times [2018-09-20 15:30:02,272 INFO L227 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-09-20 15:30:02,272 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 15:30:02,279 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-20 15:30:02,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-20 15:30:02,358 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-20 15:30:02,381 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 15:30:02,381 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-09-20 15:30:02,398 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-20 15:30:02,398 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-09-20 15:30:02,402 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-09-20 15:30:02,418 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-09-20 15:30:02,419 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-09-20 15:30:02,422 INFO L87 Difference]: Start difference. First operand 60 states. Second operand 2 states. [2018-09-20 15:30:02,458 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-20 15:30:02,459 INFO L93 Difference]: Finished difference Result 112 states and 135 transitions. [2018-09-20 15:30:02,459 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-09-20 15:30:02,461 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 23 [2018-09-20 15:30:02,461 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-20 15:30:02,474 INFO L225 Difference]: With dead ends: 112 [2018-09-20 15:30:02,474 INFO L226 Difference]: Without dead ends: 56 [2018-09-20 15:30:02,479 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-09-20 15:30:02,495 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 56 states. [2018-09-20 15:30:02,528 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 56 to 56. [2018-09-20 15:30:02,530 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 56 states. [2018-09-20 15:30:02,533 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 56 states to 56 states and 60 transitions. [2018-09-20 15:30:02,536 INFO L78 Accepts]: Start accepts. Automaton has 56 states and 60 transitions. Word has length 23 [2018-09-20 15:30:02,537 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-20 15:30:02,537 INFO L480 AbstractCegarLoop]: Abstraction has 56 states and 60 transitions. [2018-09-20 15:30:02,538 INFO L481 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-09-20 15:30:02,538 INFO L276 IsEmpty]: Start isEmpty. Operand 56 states and 60 transitions. [2018-09-20 15:30:02,540 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2018-09-20 15:30:02,541 INFO L368 BasicCegarLoop]: Found error trace [2018-09-20 15:30:02,542 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-20 15:30:02,542 INFO L423 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-20 15:30:02,543 INFO L82 PathProgramCache]: Analyzing trace with hash 1015563363, now seen corresponding path program 1 times [2018-09-20 15:30:02,544 INFO L227 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-09-20 15:30:02,545 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 3 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2018-09-20 15:30:02,554 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY Waiting until toolchain timeout for monitored process 3 with mathsat -unsat_core_generation=3 [2018-09-20 15:30:02,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-20 15:30:02,643 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-20 15:30:03,383 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 8 [2018-09-20 15:30:03,388 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2018-09-20 15:30:03,388 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-09-20 15:30:03,396 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-20 15:30:03,413 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-09-20 15:30:03,414 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:21, output treesize:21 [2018-09-20 15:30:03,568 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 21 [2018-09-20 15:30:03,573 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 9 [2018-09-20 15:30:03,573 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-09-20 15:30:03,576 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-20 15:30:03,583 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-09-20 15:30:03,583 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:29, output treesize:9 [2018-09-20 15:30:04,399 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 15:30:04,400 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-09-20 15:30:04,413 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-20 15:30:04,413 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2018-09-20 15:30:04,420 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2018-09-20 15:30:04,420 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2018-09-20 15:30:04,421 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=133, Unknown=0, NotChecked=0, Total=156 [2018-09-20 15:30:04,421 INFO L87 Difference]: Start difference. First operand 56 states and 60 transitions. Second operand 13 states. [2018-09-20 15:30:05,166 WARN L178 SmtUtils]: Spent 208.00 ms on a formula simplification that was a NOOP. DAG size: 8 [2018-09-20 15:30:07,544 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-20 15:30:07,544 INFO L93 Difference]: Finished difference Result 65 states and 69 transitions. [2018-09-20 15:30:07,545 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2018-09-20 15:30:07,546 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 41 [2018-09-20 15:30:07,546 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-20 15:30:07,552 INFO L225 Difference]: With dead ends: 65 [2018-09-20 15:30:07,552 INFO L226 Difference]: Without dead ends: 58 [2018-09-20 15:30:07,554 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 41 ImplicationChecksByTransitivity, 3.2s TimeCoverageRelationStatistics Valid=75, Invalid=431, Unknown=0, NotChecked=0, Total=506 [2018-09-20 15:30:07,555 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 58 states. [2018-09-20 15:30:07,566 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 58 to 56. [2018-09-20 15:30:07,566 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 56 states. [2018-09-20 15:30:07,568 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 56 states to 56 states and 59 transitions. [2018-09-20 15:30:07,569 INFO L78 Accepts]: Start accepts. Automaton has 56 states and 59 transitions. Word has length 41 [2018-09-20 15:30:07,569 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-20 15:30:07,569 INFO L480 AbstractCegarLoop]: Abstraction has 56 states and 59 transitions. [2018-09-20 15:30:07,570 INFO L481 AbstractCegarLoop]: Interpolant automaton has 13 states. [2018-09-20 15:30:07,570 INFO L276 IsEmpty]: Start isEmpty. Operand 56 states and 59 transitions. [2018-09-20 15:30:07,572 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2018-09-20 15:30:07,572 INFO L368 BasicCegarLoop]: Found error trace [2018-09-20 15:30:07,572 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-20 15:30:07,573 INFO L423 AbstractCegarLoop]: === Iteration 3 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-20 15:30:07,574 INFO L82 PathProgramCache]: Analyzing trace with hash 1226914276, now seen corresponding path program 1 times [2018-09-20 15:30:07,574 INFO L227 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-09-20 15:30:07,574 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) [2018-09-20 15:30:07,584 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY Waiting until toolchain timeout for monitored process 4 with mathsat -unsat_core_generation=3 [2018-09-20 15:30:07,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-20 15:30:07,649 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-20 15:30:07,691 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 8 [2018-09-20 15:30:07,695 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2018-09-20 15:30:07,696 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-09-20 15:30:07,701 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-20 15:30:07,713 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-09-20 15:30:07,713 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:21, output treesize:21 [2018-09-20 15:30:07,742 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 21 [2018-09-20 15:30:07,747 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 9 [2018-09-20 15:30:07,748 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-09-20 15:30:07,751 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-20 15:30:07,754 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-09-20 15:30:07,755 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:29, output treesize:9 [2018-09-20 15:30:07,931 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 15:30:07,931 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-09-20 15:30:07,946 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-20 15:30:07,947 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2018-09-20 15:30:07,947 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-09-20 15:30:07,947 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-09-20 15:30:07,948 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2018-09-20 15:30:07,948 INFO L87 Difference]: Start difference. First operand 56 states and 59 transitions. Second operand 9 states. [2018-09-20 15:30:08,854 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-20 15:30:08,854 INFO L93 Difference]: Finished difference Result 58 states and 61 transitions. [2018-09-20 15:30:08,855 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2018-09-20 15:30:08,855 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 41 [2018-09-20 15:30:08,856 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-20 15:30:08,856 INFO L225 Difference]: With dead ends: 58 [2018-09-20 15:30:08,856 INFO L226 Difference]: Without dead ends: 0 [2018-09-20 15:30:08,857 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 33 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 30 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=71, Invalid=235, Unknown=0, NotChecked=0, Total=306 [2018-09-20 15:30:08,857 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-09-20 15:30:08,857 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-09-20 15:30:08,858 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-09-20 15:30:08,858 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-09-20 15:30:08,858 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 41 [2018-09-20 15:30:08,858 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-20 15:30:08,859 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-09-20 15:30:08,859 INFO L481 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-09-20 15:30:08,859 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-09-20 15:30:08,859 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-09-20 15:30:08,864 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2018-09-20 15:30:09,013 INFO L426 ceAbstractionStarter]: For program point L60(line 60) no Hoare annotation was computed. [2018-09-20 15:30:09,013 INFO L426 ceAbstractionStarter]: For program point L59(line 59) no Hoare annotation was computed. [2018-09-20 15:30:09,013 INFO L426 ceAbstractionStarter]: For program point L60-1(line 60) no Hoare annotation was computed. [2018-09-20 15:30:09,013 INFO L426 ceAbstractionStarter]: For program point L58(line 58) no Hoare annotation was computed. [2018-09-20 15:30:09,014 INFO L426 ceAbstractionStarter]: For program point L60-2(line 60) no Hoare annotation was computed. [2018-09-20 15:30:09,014 INFO L426 ceAbstractionStarter]: For program point L58-1(line 58) no Hoare annotation was computed. [2018-09-20 15:30:09,014 INFO L426 ceAbstractionStarter]: For program point L58-2(line 58) no Hoare annotation was computed. [2018-09-20 15:30:09,014 INFO L426 ceAbstractionStarter]: For program point L57-1(lines 57 61) no Hoare annotation was computed. [2018-09-20 15:30:09,014 INFO L426 ceAbstractionStarter]: For program point L58-3(line 58) no Hoare annotation was computed. [2018-09-20 15:30:09,016 INFO L422 ceAbstractionStarter]: At program point L57-3(lines 57 61) the Hoare annotation is: (= |isinf_float_#in~x| isinf_float_~x) [2018-09-20 15:30:09,016 INFO L426 ceAbstractionStarter]: For program point L57-4(lines 57 61) no Hoare annotation was computed. [2018-09-20 15:30:09,016 INFO L429 ceAbstractionStarter]: At program point isinf_floatENTRY(lines 55 64) the Hoare annotation is: true [2018-09-20 15:30:09,016 INFO L426 ceAbstractionStarter]: For program point isinf_floatEXIT(lines 55 64) no Hoare annotation was computed. [2018-09-20 15:30:09,017 INFO L426 ceAbstractionStarter]: For program point isinf_floatFINAL(lines 55 64) no Hoare annotation was computed. [2018-09-20 15:30:09,017 INFO L426 ceAbstractionStarter]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2018-09-20 15:30:09,017 INFO L429 ceAbstractionStarter]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: true [2018-09-20 15:30:09,017 INFO L426 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2018-09-20 15:30:09,017 INFO L426 ceAbstractionStarter]: For program point L27(lines 27 29) no Hoare annotation was computed. [2018-09-20 15:30:09,019 INFO L426 ceAbstractionStarter]: For program point L19(line 19) no Hoare annotation was computed. [2018-09-20 15:30:09,019 INFO L426 ceAbstractionStarter]: For program point L19-1(line 19) no Hoare annotation was computed. [2018-09-20 15:30:09,019 INFO L426 ceAbstractionStarter]: For program point L19-2(line 19) no Hoare annotation was computed. [2018-09-20 15:30:09,020 INFO L426 ceAbstractionStarter]: For program point L48(line 48) no Hoare annotation was computed. [2018-09-20 15:30:09,020 INFO L426 ceAbstractionStarter]: For program point L40(lines 40 44) no Hoare annotation was computed. [2018-09-20 15:30:09,020 INFO L426 ceAbstractionStarter]: For program point L32(lines 32 34) no Hoare annotation was computed. [2018-09-20 15:30:09,020 INFO L426 ceAbstractionStarter]: For program point round_floatEXIT(lines 11 52) no Hoare annotation was computed. [2018-09-20 15:30:09,020 INFO L426 ceAbstractionStarter]: For program point L24(lines 24 45) no Hoare annotation was computed. [2018-09-20 15:30:09,021 INFO L426 ceAbstractionStarter]: For program point L49(line 49) no Hoare annotation was computed. [2018-09-20 15:30:09,021 INFO L426 ceAbstractionStarter]: For program point L49-1(line 49) no Hoare annotation was computed. [2018-09-20 15:30:09,021 INFO L426 ceAbstractionStarter]: For program point L16-1(lines 16 20) no Hoare annotation was computed. [2018-09-20 15:30:09,021 INFO L426 ceAbstractionStarter]: For program point L49-2(line 49) no Hoare annotation was computed. [2018-09-20 15:30:09,021 INFO L422 ceAbstractionStarter]: At program point L16-3(lines 16 20) the Hoare annotation is: (= round_float_~x |round_float_#in~x|) [2018-09-20 15:30:09,023 INFO L426 ceAbstractionStarter]: For program point L16-4(lines 16 20) no Hoare annotation was computed. [2018-09-20 15:30:09,023 INFO L429 ceAbstractionStarter]: At program point round_floatENTRY(lines 11 52) the Hoare annotation is: true [2018-09-20 15:30:09,023 INFO L426 ceAbstractionStarter]: For program point L25(lines 25 38) no Hoare annotation was computed. [2018-09-20 15:30:09,024 INFO L426 ceAbstractionStarter]: For program point L17(line 17) no Hoare annotation was computed. [2018-09-20 15:30:09,024 INFO L426 ceAbstractionStarter]: For program point L17-1(line 17) no Hoare annotation was computed. [2018-09-20 15:30:09,024 INFO L426 ceAbstractionStarter]: For program point L17-2(line 17) no Hoare annotation was computed. [2018-09-20 15:30:09,024 INFO L426 ceAbstractionStarter]: For program point L17-3(line 17) no Hoare annotation was computed. [2018-09-20 15:30:09,024 INFO L426 ceAbstractionStarter]: For program point L46(lines 46 50) no Hoare annotation was computed. [2018-09-20 15:30:09,026 INFO L426 ceAbstractionStarter]: For program point L46-2(lines 11 52) no Hoare annotation was computed. [2018-09-20 15:30:09,026 INFO L426 ceAbstractionStarter]: For program point L46-3(lines 46 50) no Hoare annotation was computed. [2018-09-20 15:30:09,026 INFO L426 ceAbstractionStarter]: For program point round_floatFINAL(lines 11 52) no Hoare annotation was computed. [2018-09-20 15:30:09,026 INFO L426 ceAbstractionStarter]: For program point L18(line 18) no Hoare annotation was computed. [2018-09-20 15:30:09,027 INFO L426 ceAbstractionStarter]: For program point L47(line 47) no Hoare annotation was computed. [2018-09-20 15:30:09,027 INFO L426 ceAbstractionStarter]: For program point L47-1(line 47) no Hoare annotation was computed. [2018-09-20 15:30:09,027 INFO L426 ceAbstractionStarter]: For program point L47-2(line 47) no Hoare annotation was computed. [2018-09-20 15:30:09,027 INFO L426 ceAbstractionStarter]: For program point L47-3(line 47) no Hoare annotation was computed. [2018-09-20 15:30:09,027 INFO L426 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2018-09-20 15:30:09,029 INFO L429 ceAbstractionStarter]: At program point L-1(line -1) the Hoare annotation is: true [2018-09-20 15:30:09,029 INFO L429 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2018-09-20 15:30:09,029 INFO L426 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2018-09-20 15:30:09,029 INFO L426 ceAbstractionStarter]: For program point mainErr0ASSERT_VIOLATIONERROR_FUNCTION(line 78) no Hoare annotation was computed. [2018-09-20 15:30:09,030 INFO L426 ceAbstractionStarter]: For program point L78(line 78) no Hoare annotation was computed. [2018-09-20 15:30:09,030 INFO L429 ceAbstractionStarter]: At program point mainENTRY(lines 65 83) the Hoare annotation is: true [2018-09-20 15:30:09,030 INFO L422 ceAbstractionStarter]: At program point L77(line 77) the Hoare annotation is: (let ((.cse0 (fp.div RNE (fp.neg ((_ to_fp 8 24) RNE 1.0)) (_ +zero 8 24)))) (and (= .cse0 main_~x~0) (= (fp.add RNE .cse0 .cse0) main_~res~0))) [2018-09-20 15:30:09,030 INFO L426 ceAbstractionStarter]: For program point mainFINAL(lines 65 83) no Hoare annotation was computed. [2018-09-20 15:30:09,032 INFO L426 ceAbstractionStarter]: For program point L77-1(lines 77 80) no Hoare annotation was computed. [2018-09-20 15:30:09,032 INFO L422 ceAbstractionStarter]: At program point L74(line 74) the Hoare annotation is: (= (fp.div RNE (fp.neg ((_ to_fp 8 24) RNE 1.0)) (_ +zero 8 24)) main_~x~0) [2018-09-20 15:30:09,032 INFO L426 ceAbstractionStarter]: For program point L74-1(line 74) no Hoare annotation was computed. [2018-09-20 15:30:09,032 INFO L426 ceAbstractionStarter]: For program point mainEXIT(lines 65 83) no Hoare annotation was computed. [2018-09-20 15:30:09,048 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.09 03:30:09 BoogieIcfgContainer [2018-09-20 15:30:09,048 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-09-20 15:30:09,048 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-09-20 15:30:09,048 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-09-20 15:30:09,049 INFO L276 PluginConnector]: Witness Printer initialized [2018-09-20 15:30:09,050 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.09 03:30:02" (3/4) ... [2018-09-20 15:30:09,055 INFO L144 WitnessPrinter]: Generating witness for correct program [2018-09-20 15:30:09,063 INFO L316 RCFGBacktranslator]: Ignoring RootEdge to procedure ULTIMATE.init [2018-09-20 15:30:09,063 INFO L316 RCFGBacktranslator]: Ignoring RootEdge to procedure isinf_float [2018-09-20 15:30:09,063 INFO L316 RCFGBacktranslator]: Ignoring RootEdge to procedure round_float [2018-09-20 15:30:09,064 INFO L316 RCFGBacktranslator]: Ignoring RootEdge to procedure main [2018-09-20 15:30:09,071 INFO L850 BoogieBacktranslator]: Reduced CFG by removing 16 nodes and edges [2018-09-20 15:30:09,072 INFO L850 BoogieBacktranslator]: Reduced CFG by removing 6 nodes and edges [2018-09-20 15:30:09,073 INFO L850 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2018-09-20 15:30:09,102 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: x == \old(x) [2018-09-20 15:30:09,102 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: \old(x) == x [2018-09-20 15:30:09,137 INFO L145 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2018-09-20 15:30:09,138 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-09-20 15:30:09,139 INFO L168 Benchmark]: Toolchain (without parser) took 8207.98 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 164.6 MB). Free memory was 951.8 MB in the beginning and 954.4 MB in the end (delta: -2.5 MB). Peak memory consumption was 162.1 MB. Max. memory is 11.5 GB. [2018-09-20 15:30:09,140 INFO L168 Benchmark]: CDTParser took 0.19 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 15:30:09,140 INFO L168 Benchmark]: CACSL2BoogieTranslator took 311.81 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 15:30:09,141 INFO L168 Benchmark]: Boogie Preprocessor took 53.53 ms. Allocated memory is still 1.0 GB. Free memory was 941.1 MB in the beginning and 935.7 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. [2018-09-20 15:30:09,143 INFO L168 Benchmark]: RCFGBuilder took 846.87 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 164.6 MB). Free memory was 935.7 MB in the beginning and 1.1 GB in the end (delta: -196.6 MB). Peak memory consumption was 22.0 MB. Max. memory is 11.5 GB. [2018-09-20 15:30:09,144 INFO L168 Benchmark]: TraceAbstraction took 6899.23 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 954.4 MB in the end (delta: 178.0 MB). Peak memory consumption was 178.0 MB. Max. memory is 11.5 GB. [2018-09-20 15:30:09,144 INFO L168 Benchmark]: Witness Printer took 89.35 ms. Allocated memory is still 1.2 GB. Free memory is still 954.4 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-09-20 15:30:09,149 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19 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 311.81 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 53.53 ms. Allocated memory is still 1.0 GB. Free memory was 941.1 MB in the beginning and 935.7 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. * RCFGBuilder took 846.87 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 164.6 MB). Free memory was 935.7 MB in the beginning and 1.1 GB in the end (delta: -196.6 MB). Peak memory consumption was 22.0 MB. Max. memory is 11.5 GB. * TraceAbstraction took 6899.23 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 954.4 MB in the end (delta: 178.0 MB). Peak memory consumption was 178.0 MB. Max. memory is 11.5 GB. * Witness Printer took 89.35 ms. Allocated memory is still 1.2 GB. Free memory is still 954.4 MB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 78]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 16]: Loop Invariant Derived loop invariant: x == \old(x) - InvariantResult [Line: 57]: Loop Invariant Derived loop invariant: \old(x) == x - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 60 locations, 1 error locations. SAFE Result, 6.8s OverallTime, 3 OverallIterations, 1 TraceHistogramMax, 4.1s AutomataDifference, 0.0s DeadEndRemovalTime, 0.1s HoareAnnotationTime, HoareTripleCheckerStatistics: 138 SDtfs, 93 SDslu, 586 SDs, 0 SdLazy, 243 SolverSat, 15 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 1.6s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 121 GetRequests, 84 SyntacticMatches, 0 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 71 ImplicationChecksByTransitivity, 3.9s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=60occurred 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, 2 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 10 LocationsWithAnnotation, 14 PreInvPairs, 17 NumberOfFragments, 49 HoareAnnotationTreeSize, 14 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 10 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.1s HoareSimplificationTimeInter, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 2.0s InterpolantComputationTime, 105 NumberOfCodeBlocks, 105 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 102 ConstructedInterpolants, 6 QuantifiedInterpolants, 20484 SizeOfPredicates, 17 NumberOfNonLiveVariables, 219 ConjunctsInSsa, 26 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...