/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/Ultimate.py --spec ../../../trunk/examples/svcomp/ReachSafety.prp --file ../../../trunk/examples/svcomp/float-newlib/float_req_bl_1051_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_1051_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 863e70131520c7e8858a4f32bea4c5cffd3e6ae2 .................................................................................................................................................................................................................................................................................................. 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_1051_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 863e70131520c7e8858a4f32bea4c5cffd3e6ae2 ...................................................................................................................................................................................................................................................................................................................................................................................................................................................... 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 15:29:56,140 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-09-20 15:29:56,142 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-09-20 15:29:56,157 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-09-20 15:29:56,158 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-09-20 15:29:56,159 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-09-20 15:29:56,163 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-09-20 15:29:56,165 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-09-20 15:29:56,167 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-09-20 15:29:56,168 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-09-20 15:29:56,168 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-09-20 15:29:56,169 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-09-20 15:29:56,170 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-09-20 15:29:56,171 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-09-20 15:29:56,172 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-09-20 15:29:56,172 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-09-20 15:29:56,173 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-09-20 15:29:56,175 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-09-20 15:29:56,177 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-09-20 15:29:56,179 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-09-20 15:29:56,180 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-09-20 15:29:56,181 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-09-20 15:29:56,184 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-09-20 15:29:56,184 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-09-20 15:29:56,184 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-09-20 15:29:56,185 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-09-20 15:29:56,186 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-09-20 15:29:56,187 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-09-20 15:29:56,188 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-09-20 15:29:56,189 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-09-20 15:29:56,189 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-09-20 15:29:56,190 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-09-20 15:29:56,190 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-09-20 15:29:56,191 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-09-20 15:29:56,192 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-09-20 15:29:56,192 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-09-20 15:29:56,193 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2018-09-20 15:29:56,218 INFO L110 SettingsManager]: Loading preferences was successful [2018-09-20 15:29:56,220 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-09-20 15:29:56,222 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-09-20 15:29:56,222 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-09-20 15:29:56,223 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-09-20 15:29:56,223 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-09-20 15:29:56,223 INFO L133 SettingsManager]: * Use SBE=true [2018-09-20 15:29:56,223 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-09-20 15:29:56,223 INFO L133 SettingsManager]: * sizeof long=4 [2018-09-20 15:29:56,224 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-09-20 15:29:56,224 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-09-20 15:29:56,224 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-09-20 15:29:56,224 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-09-20 15:29:56,227 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-09-20 15:29:56,227 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-09-20 15:29:56,227 INFO L133 SettingsManager]: * sizeof long double=12 [2018-09-20 15:29:56,227 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-09-20 15:29:56,227 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-09-20 15:29:56,228 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-09-20 15:29:56,228 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-09-20 15:29:56,228 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-09-20 15:29:56,228 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-09-20 15:29:56,228 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-09-20 15:29:56,229 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-09-20 15:29:56,229 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-09-20 15:29:56,229 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-09-20 15:29:56,229 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-09-20 15:29:56,229 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-09-20 15:29:56,233 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-09-20 15:29:56,233 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 -> 863e70131520c7e8858a4f32bea4c5cffd3e6ae2 [2018-09-20 15:29:56,297 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-09-20 15:29:56,314 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-09-20 15:29:56,320 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-09-20 15:29:56,322 INFO L271 PluginConnector]: Initializing CDTParser... [2018-09-20 15:29:56,322 INFO L276 PluginConnector]: CDTParser initialized [2018-09-20 15:29:56,323 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/float-newlib/float_req_bl_1051_true-unreach-call.c [2018-09-20 15:29:56,665 INFO L221 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f0e7792f8/619e12e7d18043b690817f2b3f888613/FLAG11c5e0c88 [2018-09-20 15:29:56,820 INFO L277 CDTParser]: Found 1 translation units. [2018-09-20 15:29:56,821 INFO L159 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/float-newlib/float_req_bl_1051_true-unreach-call.c [2018-09-20 15:29:56,828 INFO L325 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f0e7792f8/619e12e7d18043b690817f2b3f888613/FLAG11c5e0c88 [2018-09-20 15:29:56,843 INFO L333 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f0e7792f8/619e12e7d18043b690817f2b3f888613 [2018-09-20 15:29:56,847 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-09-20 15:29:56,850 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-09-20 15:29:56,851 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-09-20 15:29:56,851 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-09-20 15:29:56,858 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-09-20 15:29:56,859 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.09 03:29:56" (1/1) ... [2018-09-20 15:29:56,862 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@294241e9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 03:29:56, skipping insertion in model container [2018-09-20 15:29:56,862 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.09 03:29:56" (1/1) ... [2018-09-20 15:29:56,874 INFO L160 ieTranslatorObserver]: Starting translation in SV-COMP mode [2018-09-20 15:29:57,129 INFO L170 PostProcessor]: Settings: Checked method=main [2018-09-20 15:29:57,149 INFO L424 MainDispatcher]: Starting main dispatcher in SV-COMP mode [2018-09-20 15:29:57,173 INFO L170 PostProcessor]: Settings: Checked method=main [2018-09-20 15:29:57,199 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 03:29:57 WrapperNode [2018-09-20 15:29:57,200 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-09-20 15:29:57,200 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-09-20 15:29:57,201 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-09-20 15:29:57,201 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-09-20 15:29:57,216 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 03:29:57" (1/1) ... [2018-09-20 15:29:57,216 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 03:29:57" (1/1) ... [2018-09-20 15:29:57,233 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 03:29:57" (1/1) ... [2018-09-20 15:29:57,238 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 03:29:57" (1/1) ... [2018-09-20 15:29:57,245 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 03:29:57" (1/1) ... [2018-09-20 15:29:57,251 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 03:29:57" (1/1) ... [2018-09-20 15:29:57,253 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 03:29:57" (1/1) ... [2018-09-20 15:29:57,257 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-09-20 15:29:57,257 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-09-20 15:29:57,258 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-09-20 15:29:57,258 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-09-20 15:29:57,261 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 03:29:57" (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 15:29:57,327 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-09-20 15:29:57,327 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-09-20 15:29:57,328 INFO L138 BoogieDeclarations]: Found implementation of procedure floor_float [2018-09-20 15:29:57,328 INFO L138 BoogieDeclarations]: Found implementation of procedure isnan_float [2018-09-20 15:29:57,328 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-09-20 15:29:57,328 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2018-09-20 15:29:57,328 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_float [2018-09-20 15:29:57,328 INFO L130 BoogieDeclarations]: Found specification of procedure floor_float [2018-09-20 15:29:57,328 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-09-20 15:29:57,329 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2018-09-20 15:29:57,329 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2018-09-20 15:29:57,329 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-09-20 15:29:57,329 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2018-09-20 15:29:57,329 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2018-09-20 15:29:57,329 INFO L130 BoogieDeclarations]: Found specification of procedure isnan_float [2018-09-20 15:29:57,330 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-09-20 15:29:57,330 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-09-20 15:29:57,330 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-09-20 15:29:57,330 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2018-09-20 15:29:57,330 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~real [2018-09-20 15:29:58,039 INFO L365 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-09-20 15:29:58,040 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.09 03:29:58 BoogieIcfgContainer [2018-09-20 15:29:58,040 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-09-20 15:29:58,041 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-09-20 15:29:58,042 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-09-20 15:29:58,046 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-09-20 15:29:58,046 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.09 03:29:56" (1/3) ... [2018-09-20 15:29:58,047 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@206c3fc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.09 03:29:58, skipping insertion in model container [2018-09-20 15:29:58,047 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 03:29:57" (2/3) ... [2018-09-20 15:29:58,048 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@206c3fc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.09 03:29:58, skipping insertion in model container [2018-09-20 15:29:58,048 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.09 03:29:58" (3/3) ... [2018-09-20 15:29:58,051 INFO L112 eAbstractionObserver]: Analyzing ICFG float_req_bl_1051_true-unreach-call.c [2018-09-20 15:29:58,062 INFO L137 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-09-20 15:29:58,071 INFO L149 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-09-20 15:29:58,127 INFO L130 ementStrategyFactory]: Using default assertion order modulation [2018-09-20 15:29:58,128 INFO L381 AbstractCegarLoop]: Interprodecural is true [2018-09-20 15:29:58,128 INFO L382 AbstractCegarLoop]: Hoare is true [2018-09-20 15:29:58,128 INFO L383 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-09-20 15:29:58,128 INFO L384 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-09-20 15:29:58,129 INFO L385 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-09-20 15:29:58,129 INFO L386 AbstractCegarLoop]: Difference is false [2018-09-20 15:29:58,129 INFO L387 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-09-20 15:29:58,129 INFO L392 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-09-20 15:29:58,152 INFO L276 IsEmpty]: Start isEmpty. Operand 55 states. [2018-09-20 15:29:58,159 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2018-09-20 15:29:58,160 INFO L368 BasicCegarLoop]: Found error trace [2018-09-20 15:29:58,161 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] [2018-09-20 15:29:58,164 INFO L423 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-20 15:29:58,169 INFO L82 PathProgramCache]: Analyzing trace with hash 1872792536, now seen corresponding path program 1 times [2018-09-20 15:29:58,172 INFO L227 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-09-20 15:29:58,173 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-09-20 15:29:58,232 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-20 15:29:58,233 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-20 15:29:58,233 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-20 15:29:58,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-20 15:29:58,361 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 15:29:58,364 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-20 15:29:58,364 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-09-20 15:29:58,368 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-09-20 15:29:58,380 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-09-20 15:29:58,380 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-09-20 15:29:58,382 INFO L87 Difference]: Start difference. First operand 55 states. Second operand 2 states. [2018-09-20 15:29:58,409 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-20 15:29:58,409 INFO L93 Difference]: Finished difference Result 102 states and 128 transitions. [2018-09-20 15:29:58,410 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-09-20 15:29:58,411 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 22 [2018-09-20 15:29:58,411 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-20 15:29:58,423 INFO L225 Difference]: With dead ends: 102 [2018-09-20 15:29:58,423 INFO L226 Difference]: Without dead ends: 51 [2018-09-20 15:29:58,427 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 15:29:58,446 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 51 states. [2018-09-20 15:29:58,473 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 51 to 51. [2018-09-20 15:29:58,474 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 51 states. [2018-09-20 15:29:58,476 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51 states to 51 states and 59 transitions. [2018-09-20 15:29:58,478 INFO L78 Accepts]: Start accepts. Automaton has 51 states and 59 transitions. Word has length 22 [2018-09-20 15:29:58,479 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-20 15:29:58,479 INFO L480 AbstractCegarLoop]: Abstraction has 51 states and 59 transitions. [2018-09-20 15:29:58,479 INFO L481 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-09-20 15:29:58,479 INFO L276 IsEmpty]: Start isEmpty. Operand 51 states and 59 transitions. [2018-09-20 15:29:58,481 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2018-09-20 15:29:58,481 INFO L368 BasicCegarLoop]: Found error trace [2018-09-20 15:29:58,481 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] [2018-09-20 15:29:58,481 INFO L423 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-20 15:29:58,482 INFO L82 PathProgramCache]: Analyzing trace with hash 154112062, now seen corresponding path program 1 times [2018-09-20 15:29:58,482 INFO L227 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-09-20 15:29:58,482 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-09-20 15:29:58,483 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-20 15:29:58,484 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-20 15:29:58,484 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-20 15:29:58,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-09-20 15:29:58,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-09-20 15:29:58,608 INFO L443 BasicCegarLoop]: Counterexample might be feasible [2018-09-20 15:29:58,643 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.09 03:29:58 BoogieIcfgContainer [2018-09-20 15:29:58,643 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-09-20 15:29:58,644 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-09-20 15:29:58,644 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-09-20 15:29:58,644 INFO L276 PluginConnector]: Witness Printer initialized [2018-09-20 15:29:58,645 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.09 03:29:58" (3/4) ... [2018-09-20 15:29:58,649 INFO L147 WitnessPrinter]: No result that supports witness generation found [2018-09-20 15:29:58,649 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-09-20 15:29:58,650 INFO L168 Benchmark]: Toolchain (without parser) took 1802.40 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 137.4 MB). Free memory was 951.9 MB in the beginning and 1.1 GB in the end (delta: -133.1 MB). Peak memory consumption was 4.2 MB. Max. memory is 11.5 GB. [2018-09-20 15:29:58,652 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 15:29:58,653 INFO L168 Benchmark]: CACSL2BoogieTranslator took 349.15 ms. Allocated memory is still 1.0 GB. Free memory was 951.9 MB in the beginning and 941.1 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2018-09-20 15:29:58,653 INFO L168 Benchmark]: Boogie Preprocessor took 56.47 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 15:29:58,655 INFO L168 Benchmark]: RCFGBuilder took 782.84 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 137.4 MB). Free memory was 935.7 MB in the beginning and 1.1 GB in the end (delta: -176.5 MB). Peak memory consumption was 21.8 MB. Max. memory is 11.5 GB. [2018-09-20 15:29:58,655 INFO L168 Benchmark]: TraceAbstraction took 601.92 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 27.3 MB). Peak memory consumption was 27.3 MB. Max. memory is 11.5 GB. [2018-09-20 15:29:58,656 INFO L168 Benchmark]: Witness Printer took 5.50 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 15:29:58,663 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 349.15 ms. Allocated memory is still 1.0 GB. Free memory was 951.9 MB in the beginning and 941.1 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 56.47 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 782.84 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 137.4 MB). Free memory was 935.7 MB in the beginning and 1.1 GB in the end (delta: -176.5 MB). Peak memory consumption was 21.8 MB. Max. memory is 11.5 GB. * TraceAbstraction took 601.92 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 27.3 MB). Peak memory consumption was 27.3 MB. Max. memory is 11.5 GB. * Witness Printer took 5.50 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: 71]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: overapproximation of someBinaryFLOATComparisonOperation at line 58, overapproximation of someBinaryArithmeticFLOAToperation at line 45, overapproximation of bitwiseAnd at line 22. Possible FailurePath: [L12] static const float huge_floor = 1.0e30; VAL [\old(huge_floor)=132, huge_floor=1000000000000000000000000000000] [L66] float x = 0.0f / 0.0f; VAL [huge_floor=1000000000000000000000000000000] [L67] CALL, EXPR floor_float(x) VAL [\old(x)=134, huge_floor=1000000000000000000000000000000] [L15] __int32_t i0, j0; [L16] __uint32_t i, ix; VAL [\old(x)=134, huge_floor=1000000000000000000000000000000, x=134] [L18] FCALL ieee_float_shape_type gf_u; VAL [\old(x)=134, gf_u={130:0}, huge_floor=1000000000000000000000000000000, x=134] [L19] FCALL gf_u.value = (x) VAL [\old(x)=134, gf_u={130:0}, huge_floor=1000000000000000000000000000000, x=134] [L20] EXPR, FCALL gf_u.word VAL [\old(x)=134, gf_u={130:0}, gf_u.word=3, huge_floor=1000000000000000000000000000000, x=134] [L20] (i0) = gf_u.word VAL [\old(x)=134, gf_u={130:0}, gf_u.word=3, huge_floor=1000000000000000000000000000000, i0=3, x=134] [L20] FCALL (i0) = gf_u.word VAL [(i0) = gf_u.word=135, \old(x)=134, gf_u={130:0}, gf_u.word=3, huge_floor=1000000000000000000000000000000, i0=3, x=134] [L21] COND FALSE !(0) VAL [\old(x)=134, huge_floor=1000000000000000000000000000000, i0=3, x=134] [L22] ix = (i0 & 0x7fffffff) [L23] j0 = (ix >> 23) - 0x7f VAL [\old(x)=134, huge_floor=1000000000000000000000000000000, i=-36028794871480321, i0=3, j0=128, x=134] [L24] COND FALSE !(j0 < 23) VAL [\old(x)=134, huge_floor=1000000000000000000000000000000, i=-36028794871480321, i0=3, j0=128, x=134] [L44] COND TRUE !((ix) < 0x7f800000L) [L45] RET return x + x; VAL [\old(x)=134, huge_floor=1000000000000000000000000000000, i=-36028794871480321, i0=3, j0=128, x=134] [L67] EXPR floor_float(x) VAL [floor_float(x)=131, huge_floor=1000000000000000000000000000000, x=134] [L67] float res = floor_float(x); [L70] CALL, EXPR isnan_float(res) VAL [\old(x)=131, huge_floor=1000000000000000000000000000000] [L58] RET return x != x; VAL [\old(x)=131, \result=0, huge_floor=1000000000000000000000000000000, x=131] [L70] EXPR isnan_float(res) VAL [huge_floor=1000000000000000000000000000000, isnan_float(res)=0, res=131, x=134] [L70] COND TRUE !isnan_float(res) [L71] __VERIFIER_error() VAL [huge_floor=1000000000000000000000000000000, res=131, x=134] - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 55 locations, 1 error locations. UNSAFE Result, 0.5s OverallTime, 2 OverallIterations, 1 TraceHistogramMax, 0.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 63 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=55occurred 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, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 53 NumberOfCodeBlocks, 53 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 21 ConstructedInterpolants, 0 QuantifiedInterpolants, 441 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 15:30:01,007 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-09-20 15:30:01,011 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-09-20 15:30:01,029 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-09-20 15:30:01,029 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-09-20 15:30:01,030 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-09-20 15:30:01,033 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-09-20 15:30:01,035 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-09-20 15:30:01,036 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-09-20 15:30:01,037 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-09-20 15:30:01,038 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-09-20 15:30:01,038 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-09-20 15:30:01,039 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-09-20 15:30:01,040 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-09-20 15:30:01,041 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-09-20 15:30:01,042 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-09-20 15:30:01,043 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-09-20 15:30:01,044 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-09-20 15:30:01,046 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-09-20 15:30:01,048 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-09-20 15:30:01,049 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-09-20 15:30:01,050 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-09-20 15:30:01,052 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-09-20 15:30:01,053 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-09-20 15:30:01,053 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-09-20 15:30:01,054 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-09-20 15:30:01,055 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-09-20 15:30:01,056 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-09-20 15:30:01,056 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-09-20 15:30:01,058 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-09-20 15:30:01,058 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-09-20 15:30:01,058 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-09-20 15:30:01,059 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-09-20 15:30:01,059 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-09-20 15:30:01,060 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-09-20 15:30:01,061 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-09-20 15:30:01,061 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2018-09-20 15:30:01,090 INFO L110 SettingsManager]: Loading preferences was successful [2018-09-20 15:30:01,090 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-09-20 15:30:01,091 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-09-20 15:30:01,091 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-09-20 15:30:01,092 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-09-20 15:30:01,092 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-09-20 15:30:01,092 INFO L133 SettingsManager]: * Use SBE=true [2018-09-20 15:30:01,093 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-09-20 15:30:01,093 INFO L133 SettingsManager]: * sizeof long=4 [2018-09-20 15:30:01,093 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-09-20 15:30:01,093 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-09-20 15:30:01,093 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-09-20 15:30:01,094 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-09-20 15:30:01,094 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-09-20 15:30:01,094 INFO L133 SettingsManager]: * Use bitvectors instead of ints=true [2018-09-20 15:30:01,094 INFO L133 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2018-09-20 15:30:01,094 INFO L133 SettingsManager]: * sizeof long double=12 [2018-09-20 15:30:01,095 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-09-20 15:30:01,095 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-09-20 15:30:01,095 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-09-20 15:30:01,095 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-09-20 15:30:01,095 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-09-20 15:30:01,095 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-09-20 15:30:01,096 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-09-20 15:30:01,096 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-09-20 15:30:01,096 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-09-20 15:30:01,096 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-09-20 15:30:01,096 INFO L133 SettingsManager]: * Trace refinement strategy=WOLF [2018-09-20 15:30:01,097 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-09-20 15:30:01,097 INFO L133 SettingsManager]: * Command for external solver=cvc4nyu --tear-down-incremental --rewrite-divk --print-success --lang smt [2018-09-20 15:30:01,097 INFO L133 SettingsManager]: * Logic for external solver=AUFBV [2018-09-20 15:30:01,097 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 -> 863e70131520c7e8858a4f32bea4c5cffd3e6ae2 [2018-09-20 15:30:01,166 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-09-20 15:30:01,178 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-09-20 15:30:01,182 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-09-20 15:30:01,184 INFO L271 PluginConnector]: Initializing CDTParser... [2018-09-20 15:30:01,184 INFO L276 PluginConnector]: CDTParser initialized [2018-09-20 15:30:01,185 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/float-newlib/float_req_bl_1051_true-unreach-call.c [2018-09-20 15:30:01,524 INFO L221 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d6aeece07/200d299ff1b24f9d82922be8fb7aebf2/FLAG9771ff8ae [2018-09-20 15:30:01,648 INFO L277 CDTParser]: Found 1 translation units. [2018-09-20 15:30:01,649 INFO L159 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/float-newlib/float_req_bl_1051_true-unreach-call.c [2018-09-20 15:30:01,657 INFO L325 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d6aeece07/200d299ff1b24f9d82922be8fb7aebf2/FLAG9771ff8ae [2018-09-20 15:30:01,674 INFO L333 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d6aeece07/200d299ff1b24f9d82922be8fb7aebf2 [2018-09-20 15:30:01,680 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-09-20 15:30:01,683 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-09-20 15:30:01,684 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-09-20 15:30:01,684 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-09-20 15:30:01,691 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-09-20 15:30:01,692 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.09 03:30:01" (1/1) ... [2018-09-20 15:30:01,694 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@682d7878 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 03:30:01, skipping insertion in model container [2018-09-20 15:30:01,695 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.09 03:30:01" (1/1) ... [2018-09-20 15:30:01,706 INFO L160 ieTranslatorObserver]: Starting translation in SV-COMP mode [2018-09-20 15:30:01,950 INFO L170 PostProcessor]: Settings: Checked method=main [2018-09-20 15:30:01,973 INFO L424 MainDispatcher]: Starting main dispatcher in SV-COMP mode [2018-09-20 15:30:01,998 INFO L170 PostProcessor]: Settings: Checked method=main [2018-09-20 15:30:02,033 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 03:30:02 WrapperNode [2018-09-20 15:30:02,033 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-09-20 15:30:02,034 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-09-20 15:30:02,034 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-09-20 15:30:02,034 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-09-20 15:30:02,050 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 03:30:02" (1/1) ... [2018-09-20 15:30:02,050 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 03:30:02" (1/1) ... [2018-09-20 15:30:02,064 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 03:30:02" (1/1) ... [2018-09-20 15:30:02,064 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 03:30:02" (1/1) ... [2018-09-20 15:30:02,071 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 03:30:02" (1/1) ... [2018-09-20 15:30:02,077 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 03:30:02" (1/1) ... [2018-09-20 15:30:02,080 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 03:30:02" (1/1) ... [2018-09-20 15:30:02,084 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-09-20 15:30:02,084 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-09-20 15:30:02,084 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-09-20 15:30:02,084 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-09-20 15:30:02,085 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 03:30:02" (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 15:30:02,215 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-09-20 15:30:02,215 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-09-20 15:30:02,216 INFO L138 BoogieDeclarations]: Found implementation of procedure floor_float [2018-09-20 15:30:02,216 INFO L138 BoogieDeclarations]: Found implementation of procedure isnan_float [2018-09-20 15:30:02,216 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-09-20 15:30:02,216 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2018-09-20 15:30:02,216 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_float [2018-09-20 15:30:02,216 INFO L130 BoogieDeclarations]: Found specification of procedure floor_float [2018-09-20 15:30:02,216 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-09-20 15:30:02,217 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4 [2018-09-20 15:30:02,217 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2018-09-20 15:30:02,217 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-09-20 15:30:02,217 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2018-09-20 15:30:02,217 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4 [2018-09-20 15:30:02,217 INFO L130 BoogieDeclarations]: Found specification of procedure isnan_float [2018-09-20 15:30:02,217 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-09-20 15:30:02,218 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-09-20 15:30:02,218 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-09-20 15:30:02,218 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE4 [2018-09-20 15:30:02,218 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intFLOATTYPE4 [2018-09-20 15:30:02,828 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-20 15:30:02,858 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-20 15:30:03,369 INFO L365 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-09-20 15:30:03,370 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.09 03:30:03 BoogieIcfgContainer [2018-09-20 15:30:03,370 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-09-20 15:30:03,371 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-09-20 15:30:03,371 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-09-20 15:30:03,375 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-09-20 15:30:03,376 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.09 03:30:01" (1/3) ... [2018-09-20 15:30:03,376 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5170825d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.09 03:30:03, skipping insertion in model container [2018-09-20 15:30:03,377 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 03:30:02" (2/3) ... [2018-09-20 15:30:03,377 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5170825d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.09 03:30:03, skipping insertion in model container [2018-09-20 15:30:03,377 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.09 03:30:03" (3/3) ... [2018-09-20 15:30:03,383 INFO L112 eAbstractionObserver]: Analyzing ICFG float_req_bl_1051_true-unreach-call.c [2018-09-20 15:30:03,393 INFO L137 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-09-20 15:30:03,403 INFO L149 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-09-20 15:30:03,469 INFO L130 ementStrategyFactory]: Using default assertion order modulation [2018-09-20 15:30:03,469 INFO L381 AbstractCegarLoop]: Interprodecural is true [2018-09-20 15:30:03,470 INFO L382 AbstractCegarLoop]: Hoare is true [2018-09-20 15:30:03,470 INFO L383 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-09-20 15:30:03,470 INFO L384 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-09-20 15:30:03,470 INFO L385 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-09-20 15:30:03,471 INFO L386 AbstractCegarLoop]: Difference is false [2018-09-20 15:30:03,471 INFO L387 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-09-20 15:30:03,471 INFO L392 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-09-20 15:30:03,505 INFO L276 IsEmpty]: Start isEmpty. Operand 54 states. [2018-09-20 15:30:03,516 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2018-09-20 15:30:03,516 INFO L368 BasicCegarLoop]: Found error trace [2018-09-20 15:30:03,518 INFO L376 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-20 15:30:03,528 INFO L423 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-20 15:30:03,533 INFO L82 PathProgramCache]: Analyzing trace with hash -418331411, now seen corresponding path program 1 times [2018-09-20 15:30:03,539 INFO L227 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-09-20 15:30:03,539 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) [2018-09-20 15:30:03,553 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY Waiting until toolchain timeout for monitored process 2 with mathsat -unsat_core_generation=3 [2018-09-20 15:30:03,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-20 15:30:03,668 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-20 15:30:03,698 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 15:30:03,699 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-09-20 15:30:03,713 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-20 15:30:03,714 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-09-20 15:30:03,717 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-09-20 15:30:03,729 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-09-20 15:30:03,730 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-09-20 15:30:03,732 INFO L87 Difference]: Start difference. First operand 54 states. Second operand 2 states. [2018-09-20 15:30:03,759 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-20 15:30:03,759 INFO L93 Difference]: Finished difference Result 100 states and 126 transitions. [2018-09-20 15:30:03,759 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-09-20 15:30:03,762 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 21 [2018-09-20 15:30:03,763 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-20 15:30:03,778 INFO L225 Difference]: With dead ends: 100 [2018-09-20 15:30:03,779 INFO L226 Difference]: Without dead ends: 50 [2018-09-20 15:30:03,783 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 20 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 15:30:03,807 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 50 states. [2018-09-20 15:30:03,831 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 50 to 50. [2018-09-20 15:30:03,834 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 50 states. [2018-09-20 15:30:03,836 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50 states to 50 states and 58 transitions. [2018-09-20 15:30:03,839 INFO L78 Accepts]: Start accepts. Automaton has 50 states and 58 transitions. Word has length 21 [2018-09-20 15:30:03,841 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-20 15:30:03,842 INFO L480 AbstractCegarLoop]: Abstraction has 50 states and 58 transitions. [2018-09-20 15:30:03,842 INFO L481 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-09-20 15:30:03,842 INFO L276 IsEmpty]: Start isEmpty. Operand 50 states and 58 transitions. [2018-09-20 15:30:03,844 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2018-09-20 15:30:03,845 INFO L368 BasicCegarLoop]: Found error trace [2018-09-20 15:30:03,846 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] [2018-09-20 15:30:03,846 INFO L423 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-20 15:30:03,846 INFO L82 PathProgramCache]: Analyzing trace with hash -960897078, now seen corresponding path program 1 times [2018-09-20 15:30:03,847 INFO L227 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-09-20 15:30:03,847 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 3 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with mathsat -unsat_core_generation=3 [2018-09-20 15:30:03,855 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-20 15:30:03,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-20 15:30:03,933 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-20 15:30:04,771 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 15:30:04,772 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-09-20 15:30:04,784 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-20 15:30:04,784 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2018-09-20 15:30:04,786 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-09-20 15:30:04,787 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-09-20 15:30:04,788 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2018-09-20 15:30:04,788 INFO L87 Difference]: Start difference. First operand 50 states and 58 transitions. Second operand 9 states. [2018-09-20 15:30:05,391 WARN L178 SmtUtils]: Spent 144.00 ms on a formula simplification that was a NOOP. DAG size: 8 [2018-09-20 15:30:06,850 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-20 15:30:06,851 INFO L93 Difference]: Finished difference Result 59 states and 67 transitions. [2018-09-20 15:30:06,852 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2018-09-20 15:30:06,852 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 30 [2018-09-20 15:30:06,852 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-20 15:30:06,855 INFO L225 Difference]: With dead ends: 59 [2018-09-20 15:30:06,856 INFO L226 Difference]: Without dead ends: 52 [2018-09-20 15:30:06,857 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=33, Invalid=123, Unknown=0, NotChecked=0, Total=156 [2018-09-20 15:30:06,857 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52 states. [2018-09-20 15:30:06,867 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52 to 50. [2018-09-20 15:30:06,867 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 50 states. [2018-09-20 15:30:06,869 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50 states to 50 states and 57 transitions. [2018-09-20 15:30:06,869 INFO L78 Accepts]: Start accepts. Automaton has 50 states and 57 transitions. Word has length 30 [2018-09-20 15:30:06,869 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-20 15:30:06,870 INFO L480 AbstractCegarLoop]: Abstraction has 50 states and 57 transitions. [2018-09-20 15:30:06,870 INFO L481 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-09-20 15:30:06,870 INFO L276 IsEmpty]: Start isEmpty. Operand 50 states and 57 transitions. [2018-09-20 15:30:06,871 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2018-09-20 15:30:06,871 INFO L368 BasicCegarLoop]: Found error trace [2018-09-20 15:30:06,872 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] [2018-09-20 15:30:06,873 INFO L423 AbstractCegarLoop]: === Iteration 3 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-20 15:30:06,873 INFO L82 PathProgramCache]: Analyzing trace with hash -1157410583, now seen corresponding path program 1 times [2018-09-20 15:30:06,874 INFO L227 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-09-20 15:30:06,874 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 4 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with mathsat -unsat_core_generation=3 [2018-09-20 15:30:06,884 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-20 15:30:06,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-20 15:30:06,929 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-20 15:30:07,234 WARN L178 SmtUtils]: Spent 199.00 ms on a formula simplification that was a NOOP. DAG size: 12 [2018-09-20 15:30:07,445 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 15:30:07,445 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-09-20 15:30:07,458 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-20 15:30:07,459 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2018-09-20 15:30:07,459 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-09-20 15:30:07,460 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-09-20 15:30:07,460 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2018-09-20 15:30:07,461 INFO L87 Difference]: Start difference. First operand 50 states and 57 transitions. Second operand 9 states. [2018-09-20 15:30:08,327 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-20 15:30:08,327 INFO L93 Difference]: Finished difference Result 57 states and 64 transitions. [2018-09-20 15:30:08,327 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2018-09-20 15:30:08,328 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 30 [2018-09-20 15:30:08,328 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-20 15:30:08,329 INFO L225 Difference]: With dead ends: 57 [2018-09-20 15:30:08,330 INFO L226 Difference]: Without dead ends: 49 [2018-09-20 15:30:08,330 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=33, Invalid=123, Unknown=0, NotChecked=0, Total=156 [2018-09-20 15:30:08,331 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 49 states. [2018-09-20 15:30:08,336 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 49 to 49. [2018-09-20 15:30:08,336 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 49 states. [2018-09-20 15:30:08,337 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49 states to 49 states and 54 transitions. [2018-09-20 15:30:08,337 INFO L78 Accepts]: Start accepts. Automaton has 49 states and 54 transitions. Word has length 30 [2018-09-20 15:30:08,338 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-20 15:30:08,338 INFO L480 AbstractCegarLoop]: Abstraction has 49 states and 54 transitions. [2018-09-20 15:30:08,338 INFO L481 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-09-20 15:30:08,338 INFO L276 IsEmpty]: Start isEmpty. Operand 49 states and 54 transitions. [2018-09-20 15:30:08,340 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2018-09-20 15:30:08,340 INFO L368 BasicCegarLoop]: Found error trace [2018-09-20 15:30:08,340 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 15:30:08,341 INFO L423 AbstractCegarLoop]: === Iteration 4 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-20 15:30:08,341 INFO L82 PathProgramCache]: Analyzing trace with hash 1200312195, now seen corresponding path program 1 times [2018-09-20 15:30:08,342 INFO L227 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-09-20 15:30:08,342 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 5 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with mathsat -unsat_core_generation=3 [2018-09-20 15:30:08,346 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-20 15:30:08,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-20 15:30:08,416 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-20 15:30:08,496 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 15:30:08,500 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 15:30:08,501 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-09-20 15:30:08,505 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-20 15:30:08,522 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 15:30:08,523 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:21, output treesize:21 [2018-09-20 15:30:08,557 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 15:30:08,561 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 15:30:08,562 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-09-20 15:30:08,566 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-20 15:30:08,572 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 15:30:08,572 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:29, output treesize:9 [2018-09-20 15:30:08,887 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 15:30:08,887 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-09-20 15:30:08,903 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-20 15:30:08,904 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2018-09-20 15:30:08,904 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-09-20 15:30:08,905 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-09-20 15:30:08,905 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2018-09-20 15:30:08,906 INFO L87 Difference]: Start difference. First operand 49 states and 54 transitions. Second operand 9 states. [2018-09-20 15:30:10,531 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-20 15:30:10,532 INFO L93 Difference]: Finished difference Result 63 states and 68 transitions. [2018-09-20 15:30:10,534 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2018-09-20 15:30:10,534 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 42 [2018-09-20 15:30:10,534 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-20 15:30:10,535 INFO L225 Difference]: With dead ends: 63 [2018-09-20 15:30:10,535 INFO L226 Difference]: Without dead ends: 0 [2018-09-20 15:30:10,536 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 39 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=78, Invalid=264, Unknown=0, NotChecked=0, Total=342 [2018-09-20 15:30:10,536 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-09-20 15:30:10,536 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-09-20 15:30:10,537 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-09-20 15:30:10,537 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-09-20 15:30:10,537 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 42 [2018-09-20 15:30:10,537 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-20 15:30:10,537 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-09-20 15:30:10,537 INFO L481 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-09-20 15:30:10,538 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-09-20 15:30:10,538 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-09-20 15:30:10,543 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2018-09-20 15:30:10,856 WARN L178 SmtUtils]: Spent 226.00 ms on a formula simplification. DAG size of input: 12 DAG size of output: 9 [2018-09-20 15:30:10,900 INFO L426 ceAbstractionStarter]: For program point isnan_floatFINAL(line 58) no Hoare annotation was computed. [2018-09-20 15:30:10,901 INFO L429 ceAbstractionStarter]: At program point isnan_floatENTRY(line 58) the Hoare annotation is: true [2018-09-20 15:30:10,901 INFO L426 ceAbstractionStarter]: For program point isnan_floatEXIT(line 58) no Hoare annotation was computed. [2018-09-20 15:30:10,901 INFO L426 ceAbstractionStarter]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2018-09-20 15:30:10,901 INFO L429 ceAbstractionStarter]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: true [2018-09-20 15:30:10,901 INFO L426 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2018-09-20 15:30:10,901 INFO L426 ceAbstractionStarter]: For program point L27(lines 27 31) no Hoare annotation was computed. [2018-09-20 15:30:10,902 INFO L426 ceAbstractionStarter]: For program point L52(line 52) no Hoare annotation was computed. [2018-09-20 15:30:10,902 INFO L426 ceAbstractionStarter]: For program point L19(line 19) no Hoare annotation was computed. [2018-09-20 15:30:10,902 INFO L426 ceAbstractionStarter]: For program point L52-1(line 52) no Hoare annotation was computed. [2018-09-20 15:30:10,902 INFO L426 ceAbstractionStarter]: For program point L52-2(line 52) no Hoare annotation was computed. [2018-09-20 15:30:10,902 INFO L426 ceAbstractionStarter]: For program point L44(lines 44 47) no Hoare annotation was computed. [2018-09-20 15:30:10,902 INFO L426 ceAbstractionStarter]: For program point L24(lines 24 48) no Hoare annotation was computed. [2018-09-20 15:30:10,904 INFO L426 ceAbstractionStarter]: For program point L20(line 20) no Hoare annotation was computed. [2018-09-20 15:30:10,904 INFO L426 ceAbstractionStarter]: For program point L20-1(line 20) no Hoare annotation was computed. [2018-09-20 15:30:10,904 INFO L426 ceAbstractionStarter]: For program point L20-2(line 20) no Hoare annotation was computed. [2018-09-20 15:30:10,904 INFO L426 ceAbstractionStarter]: For program point L49(lines 49 53) no Hoare annotation was computed. [2018-09-20 15:30:10,904 INFO L426 ceAbstractionStarter]: For program point L49-2(lines 14 55) no Hoare annotation was computed. [2018-09-20 15:30:10,905 INFO L426 ceAbstractionStarter]: For program point L49-3(lines 49 53) no Hoare annotation was computed. [2018-09-20 15:30:10,905 INFO L426 ceAbstractionStarter]: For program point L37(lines 37 41) no Hoare annotation was computed. [2018-09-20 15:30:10,905 INFO L426 ceAbstractionStarter]: For program point L29(lines 29 31) no Hoare annotation was computed. [2018-09-20 15:30:10,905 INFO L426 ceAbstractionStarter]: For program point floor_floatEXIT(lines 14 55) no Hoare annotation was computed. [2018-09-20 15:30:10,905 INFO L426 ceAbstractionStarter]: For program point L25(lines 25 42) no Hoare annotation was computed. [2018-09-20 15:30:10,905 INFO L426 ceAbstractionStarter]: For program point L50(line 50) no Hoare annotation was computed. [2018-09-20 15:30:10,905 INFO L426 ceAbstractionStarter]: For program point L50-1(line 50) no Hoare annotation was computed. [2018-09-20 15:30:10,907 INFO L426 ceAbstractionStarter]: For program point L17-1(lines 17 21) no Hoare annotation was computed. [2018-09-20 15:30:10,907 INFO L426 ceAbstractionStarter]: For program point L50-2(line 50) no Hoare annotation was computed. [2018-09-20 15:30:10,907 INFO L426 ceAbstractionStarter]: For program point L50-3(line 50) no Hoare annotation was computed. [2018-09-20 15:30:10,907 INFO L422 ceAbstractionStarter]: At program point L17-3(lines 17 21) the Hoare annotation is: (= |floor_float_#in~x| floor_float_~x) [2018-09-20 15:30:10,908 INFO L426 ceAbstractionStarter]: For program point L17-4(lines 17 21) no Hoare annotation was computed. [2018-09-20 15:30:10,908 INFO L426 ceAbstractionStarter]: For program point L38(lines 38 39) no Hoare annotation was computed. [2018-09-20 15:30:10,908 INFO L426 ceAbstractionStarter]: For program point L38-2(lines 38 39) no Hoare annotation was computed. [2018-09-20 15:30:10,908 INFO L426 ceAbstractionStarter]: For program point floor_floatFINAL(lines 14 55) no Hoare annotation was computed. [2018-09-20 15:30:10,908 INFO L426 ceAbstractionStarter]: For program point L26(lines 26 32) no Hoare annotation was computed. [2018-09-20 15:30:10,908 INFO L429 ceAbstractionStarter]: At program point floor_floatENTRY(lines 14 55) the Hoare annotation is: true [2018-09-20 15:30:10,908 INFO L426 ceAbstractionStarter]: For program point L51(line 51) no Hoare annotation was computed. [2018-09-20 15:30:10,908 INFO L426 ceAbstractionStarter]: For program point L18(line 18) no Hoare annotation was computed. [2018-09-20 15:30:10,910 INFO L426 ceAbstractionStarter]: For program point L18-1(line 18) no Hoare annotation was computed. [2018-09-20 15:30:10,910 INFO L426 ceAbstractionStarter]: For program point L18-2(line 18) no Hoare annotation was computed. [2018-09-20 15:30:10,910 INFO L426 ceAbstractionStarter]: For program point L18-3(line 18) no Hoare annotation was computed. [2018-09-20 15:30:10,910 INFO L426 ceAbstractionStarter]: For program point L35(lines 35 36) no Hoare annotation was computed. [2018-09-20 15:30:10,910 INFO L426 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2018-09-20 15:30:10,910 INFO L429 ceAbstractionStarter]: At program point L-1(line -1) the Hoare annotation is: true [2018-09-20 15:30:10,910 INFO L429 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2018-09-20 15:30:10,910 INFO L426 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2018-09-20 15:30:10,911 INFO L426 ceAbstractionStarter]: For program point mainErr0ASSERT_VIOLATIONERROR_FUNCTION(line 71) no Hoare annotation was computed. [2018-09-20 15:30:10,911 INFO L429 ceAbstractionStarter]: At program point mainENTRY(lines 60 76) the Hoare annotation is: true [2018-09-20 15:30:10,911 INFO L426 ceAbstractionStarter]: For program point mainFINAL(lines 60 76) no Hoare annotation was computed. [2018-09-20 15:30:10,911 INFO L426 ceAbstractionStarter]: For program point mainEXIT(lines 60 76) no Hoare annotation was computed. [2018-09-20 15:30:10,911 INFO L426 ceAbstractionStarter]: For program point L71(line 71) no Hoare annotation was computed. [2018-09-20 15:30:10,911 INFO L422 ceAbstractionStarter]: At program point L70(line 70) the Hoare annotation is: (let ((.cse0 (fp.div RNE (_ +zero 8 24) (_ +zero 8 24)))) (and (= main_~res~0 (fp.add RNE .cse0 .cse0)) (= .cse0 main_~x~0))) [2018-09-20 15:30:10,912 INFO L426 ceAbstractionStarter]: For program point L70-1(lines 70 73) no Hoare annotation was computed. [2018-09-20 15:30:10,912 INFO L422 ceAbstractionStarter]: At program point L67(line 67) the Hoare annotation is: (= (fp.div RNE (_ +zero 8 24) (_ +zero 8 24)) main_~x~0) [2018-09-20 15:30:10,912 INFO L426 ceAbstractionStarter]: For program point L67-1(line 67) no Hoare annotation was computed. [2018-09-20 15:30:10,924 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.09 03:30:10 BoogieIcfgContainer [2018-09-20 15:30:10,924 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-09-20 15:30:10,924 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-09-20 15:30:10,924 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-09-20 15:30:10,925 INFO L276 PluginConnector]: Witness Printer initialized [2018-09-20 15:30:10,925 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.09 03:30:03" (3/4) ... [2018-09-20 15:30:10,930 INFO L144 WitnessPrinter]: Generating witness for correct program [2018-09-20 15:30:10,938 INFO L316 RCFGBacktranslator]: Ignoring RootEdge to procedure isnan_float [2018-09-20 15:30:10,938 INFO L316 RCFGBacktranslator]: Ignoring RootEdge to procedure ULTIMATE.init [2018-09-20 15:30:10,938 INFO L316 RCFGBacktranslator]: Ignoring RootEdge to procedure floor_float [2018-09-20 15:30:10,939 INFO L316 RCFGBacktranslator]: Ignoring RootEdge to procedure main [2018-09-20 15:30:10,944 INFO L850 BoogieBacktranslator]: Reduced CFG by removing 15 nodes and edges [2018-09-20 15:30:10,944 INFO L850 BoogieBacktranslator]: Reduced CFG by removing 6 nodes and edges [2018-09-20 15:30:10,944 INFO L850 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2018-09-20 15:30:10,971 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: \old(x) == x [2018-09-20 15:30:11,003 INFO L145 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2018-09-20 15:30:11,003 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-09-20 15:30:11,004 INFO L168 Benchmark]: Toolchain (without parser) took 9324.26 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 110.6 MB). Free memory was 951.8 MB in the beginning and 897.3 MB in the end (delta: 54.5 MB). Peak memory consumption was 165.2 MB. Max. memory is 11.5 GB. [2018-09-20 15:30:11,006 INFO L168 Benchmark]: CDTParser took 0.17 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 15:30:11,006 INFO L168 Benchmark]: CACSL2BoogieTranslator took 349.86 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 15:30:11,007 INFO L168 Benchmark]: Boogie Preprocessor took 49.68 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 15:30:11,007 INFO L168 Benchmark]: RCFGBuilder took 1285.97 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 110.6 MB). Free memory was 935.7 MB in the beginning and 1.1 GB in the end (delta: -141.8 MB). Peak memory consumption was 22.0 MB. Max. memory is 11.5 GB. [2018-09-20 15:30:11,008 INFO L168 Benchmark]: TraceAbstraction took 7552.64 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 897.3 MB in the end (delta: 180.2 MB). Peak memory consumption was 180.2 MB. Max. memory is 11.5 GB. [2018-09-20 15:30:11,010 INFO L168 Benchmark]: Witness Printer took 79.17 ms. Allocated memory is still 1.1 GB. Free memory is still 897.3 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-09-20 15:30:11,014 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17 ms. Allocated memory is still 1.0 GB. Free memory is still 978.7 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 349.86 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 49.68 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 1285.97 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 110.6 MB). Free memory was 935.7 MB in the beginning and 1.1 GB in the end (delta: -141.8 MB). Peak memory consumption was 22.0 MB. Max. memory is 11.5 GB. * TraceAbstraction took 7552.64 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 897.3 MB in the end (delta: 180.2 MB). Peak memory consumption was 180.2 MB. Max. memory is 11.5 GB. * Witness Printer took 79.17 ms. Allocated memory is still 1.1 GB. Free memory is still 897.3 MB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 71]: 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: 17]: Loop Invariant Derived loop invariant: \old(x) == x - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 54 locations, 1 error locations. SAFE Result, 7.4s OverallTime, 4 OverallIterations, 1 TraceHistogramMax, 4.6s AutomataDifference, 0.0s DeadEndRemovalTime, 0.3s HoareAnnotationTime, HoareTripleCheckerStatistics: 184 SDtfs, 155 SDslu, 707 SDs, 0 SdLazy, 275 SolverSat, 15 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 2.8s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 137 GetRequests, 98 SyntacticMatches, 0 SemanticMatches, 39 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 49 ImplicationChecksByTransitivity, 2.9s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=54occurred 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, 4 MinimizatonAttempts, 2 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 9 LocationsWithAnnotation, 12 PreInvPairs, 15 NumberOfFragments, 34 HoareAnnotationTreeSize, 12 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 9 FomulaSimplificationsInter, 14 FormulaSimplificationTreeSizeReductionInter, 0.2s HoareSimplificationTimeInter, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 1.8s InterpolantComputationTime, 123 NumberOfCodeBlocks, 123 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 119 ConstructedInterpolants, 16 QuantifiedInterpolants, 25014 SizeOfPredicates, 17 NumberOfNonLiveVariables, 264 ConjunctsInSsa, 33 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 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...