/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/Ultimate.py --spec ../../../trunk/examples/svcomp/ReachSafety.prp --file ../../../trunk/examples/svcomp/float-newlib/float_req_bl_1381_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_1381_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 c91754c7d707a58127a2dc4a18babac51d557647 ................................................................................................................................................................................................................................................................................................................. 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_1381_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 c91754c7d707a58127a2dc4a18babac51d557647 ..................................................................................................................................................................................................................................................................................................................................................................................... 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 15:32:21,134 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-09-20 15:32:21,136 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-09-20 15:32:21,148 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-09-20 15:32:21,148 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-09-20 15:32:21,149 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-09-20 15:32:21,150 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-09-20 15:32:21,152 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-09-20 15:32:21,154 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-09-20 15:32:21,155 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-09-20 15:32:21,156 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-09-20 15:32:21,156 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-09-20 15:32:21,157 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-09-20 15:32:21,158 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-09-20 15:32:21,159 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-09-20 15:32:21,160 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-09-20 15:32:21,161 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-09-20 15:32:21,163 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-09-20 15:32:21,165 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-09-20 15:32:21,166 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-09-20 15:32:21,168 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-09-20 15:32:21,169 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-09-20 15:32:21,172 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-09-20 15:32:21,172 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-09-20 15:32:21,172 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-09-20 15:32:21,176 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-09-20 15:32:21,180 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-09-20 15:32:21,182 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-09-20 15:32:21,184 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-09-20 15:32:21,186 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-09-20 15:32:21,186 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-09-20 15:32:21,187 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-09-20 15:32:21,187 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-09-20 15:32:21,187 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-09-20 15:32:21,189 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-09-20 15:32:21,191 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-09-20 15:32:21,192 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2018-09-20 15:32:21,220 INFO L110 SettingsManager]: Loading preferences was successful [2018-09-20 15:32:21,224 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-09-20 15:32:21,226 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-09-20 15:32:21,226 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-09-20 15:32:21,227 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-09-20 15:32:21,227 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-09-20 15:32:21,228 INFO L133 SettingsManager]: * Use SBE=true [2018-09-20 15:32:21,228 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-09-20 15:32:21,228 INFO L133 SettingsManager]: * sizeof long=4 [2018-09-20 15:32:21,228 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-09-20 15:32:21,230 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-09-20 15:32:21,230 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-09-20 15:32:21,231 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-09-20 15:32:21,231 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-09-20 15:32:21,231 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-09-20 15:32:21,232 INFO L133 SettingsManager]: * sizeof long double=12 [2018-09-20 15:32:21,232 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-09-20 15:32:21,232 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-09-20 15:32:21,232 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-09-20 15:32:21,233 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-09-20 15:32:21,233 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-09-20 15:32:21,233 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-09-20 15:32:21,233 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-09-20 15:32:21,235 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-09-20 15:32:21,236 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-09-20 15:32:21,236 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-09-20 15:32:21,236 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-09-20 15:32:21,236 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-09-20 15:32:21,237 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-09-20 15:32:21,237 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 -> c91754c7d707a58127a2dc4a18babac51d557647 [2018-09-20 15:32:21,307 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-09-20 15:32:21,324 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-09-20 15:32:21,329 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-09-20 15:32:21,331 INFO L271 PluginConnector]: Initializing CDTParser... [2018-09-20 15:32:21,332 INFO L276 PluginConnector]: CDTParser initialized [2018-09-20 15:32:21,333 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/float-newlib/float_req_bl_1381_true-unreach-call.c [2018-09-20 15:32:21,691 INFO L221 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1e194b9d7/8ae6a4502db4484ab72eaef462b16831/FLAGc90b3c08b [2018-09-20 15:32:21,821 INFO L277 CDTParser]: Found 1 translation units. [2018-09-20 15:32:21,822 INFO L159 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/float-newlib/float_req_bl_1381_true-unreach-call.c [2018-09-20 15:32:21,828 INFO L325 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1e194b9d7/8ae6a4502db4484ab72eaef462b16831/FLAGc90b3c08b [2018-09-20 15:32:21,852 INFO L333 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1e194b9d7/8ae6a4502db4484ab72eaef462b16831 [2018-09-20 15:32:21,857 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-09-20 15:32:21,860 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-09-20 15:32:21,861 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-09-20 15:32:21,861 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-09-20 15:32:21,868 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-09-20 15:32:21,869 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.09 03:32:21" (1/1) ... [2018-09-20 15:32:21,872 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5604ea33 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 03:32:21, skipping insertion in model container [2018-09-20 15:32:21,872 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.09 03:32:21" (1/1) ... [2018-09-20 15:32:21,886 INFO L160 ieTranslatorObserver]: Starting translation in SV-COMP mode [2018-09-20 15:32:22,111 INFO L170 PostProcessor]: Settings: Checked method=main [2018-09-20 15:32:22,131 INFO L424 MainDispatcher]: Starting main dispatcher in SV-COMP mode [2018-09-20 15:32:22,146 INFO L170 PostProcessor]: Settings: Checked method=main [2018-09-20 15:32:22,176 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 03:32:22 WrapperNode [2018-09-20 15:32:22,177 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-09-20 15:32:22,177 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-09-20 15:32:22,177 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-09-20 15:32:22,177 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-09-20 15:32:22,192 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 03:32:22" (1/1) ... [2018-09-20 15:32:22,193 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 03:32:22" (1/1) ... [2018-09-20 15:32:22,203 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 03:32:22" (1/1) ... [2018-09-20 15:32:22,203 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 03:32:22" (1/1) ... [2018-09-20 15:32:22,210 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 03:32:22" (1/1) ... [2018-09-20 15:32:22,215 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 03:32:22" (1/1) ... [2018-09-20 15:32:22,217 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 03:32:22" (1/1) ... [2018-09-20 15:32:22,220 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-09-20 15:32:22,220 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-09-20 15:32:22,220 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-09-20 15:32:22,220 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-09-20 15:32:22,221 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 03:32:22" (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 15:32:22,287 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-09-20 15:32:22,287 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-09-20 15:32:22,287 INFO L138 BoogieDeclarations]: Found implementation of procedure copysign_float [2018-09-20 15:32:22,288 INFO L138 BoogieDeclarations]: Found implementation of procedure isnan_float [2018-09-20 15:32:22,288 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-09-20 15:32:22,288 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2018-09-20 15:32:22,288 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_float [2018-09-20 15:32:22,288 INFO L130 BoogieDeclarations]: Found specification of procedure copysign_float [2018-09-20 15:32:22,288 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-09-20 15:32:22,288 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2018-09-20 15:32:22,289 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2018-09-20 15:32:22,289 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-09-20 15:32:22,289 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2018-09-20 15:32:22,289 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2018-09-20 15:32:22,289 INFO L130 BoogieDeclarations]: Found specification of procedure isnan_float [2018-09-20 15:32:22,289 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-09-20 15:32:22,292 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-09-20 15:32:22,292 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-09-20 15:32:22,292 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2018-09-20 15:32:22,292 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~real [2018-09-20 15:32:22,840 INFO L365 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-09-20 15:32:22,841 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.09 03:32:22 BoogieIcfgContainer [2018-09-20 15:32:22,841 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-09-20 15:32:22,842 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-09-20 15:32:22,842 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-09-20 15:32:22,846 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-09-20 15:32:22,846 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.09 03:32:21" (1/3) ... [2018-09-20 15:32:22,847 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3971d37f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.09 03:32:22, skipping insertion in model container [2018-09-20 15:32:22,847 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 03:32:22" (2/3) ... [2018-09-20 15:32:22,848 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3971d37f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.09 03:32:22, skipping insertion in model container [2018-09-20 15:32:22,848 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.09 03:32:22" (3/3) ... [2018-09-20 15:32:22,850 INFO L112 eAbstractionObserver]: Analyzing ICFG float_req_bl_1381_true-unreach-call.c [2018-09-20 15:32:22,860 INFO L137 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-09-20 15:32:22,869 INFO L149 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-09-20 15:32:22,922 INFO L130 ementStrategyFactory]: Using default assertion order modulation [2018-09-20 15:32:22,923 INFO L381 AbstractCegarLoop]: Interprodecural is true [2018-09-20 15:32:22,923 INFO L382 AbstractCegarLoop]: Hoare is true [2018-09-20 15:32:22,923 INFO L383 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-09-20 15:32:22,923 INFO L384 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-09-20 15:32:22,923 INFO L385 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-09-20 15:32:22,923 INFO L386 AbstractCegarLoop]: Difference is false [2018-09-20 15:32:22,924 INFO L387 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-09-20 15:32:22,924 INFO L392 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-09-20 15:32:22,946 INFO L276 IsEmpty]: Start isEmpty. Operand 54 states. [2018-09-20 15:32:22,962 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2018-09-20 15:32:22,963 INFO L368 BasicCegarLoop]: Found error trace [2018-09-20 15:32:22,968 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 15:32:22,973 INFO L423 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-20 15:32:22,981 INFO L82 PathProgramCache]: Analyzing trace with hash 321549379, now seen corresponding path program 1 times [2018-09-20 15:32:22,984 INFO L227 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-09-20 15:32:22,984 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-09-20 15:32:23,035 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-20 15:32:23,036 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-20 15:32:23,036 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-20 15:32:23,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-20 15:32:23,134 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 15:32:23,137 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-20 15:32:23,137 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-09-20 15:32:23,142 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-09-20 15:32:23,157 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-09-20 15:32:23,158 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-09-20 15:32:23,160 INFO L87 Difference]: Start difference. First operand 54 states. Second operand 2 states. [2018-09-20 15:32:23,184 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-20 15:32:23,184 INFO L93 Difference]: Finished difference Result 100 states and 112 transitions. [2018-09-20 15:32:23,185 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-09-20 15:32:23,186 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 22 [2018-09-20 15:32:23,187 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-20 15:32:23,197 INFO L225 Difference]: With dead ends: 100 [2018-09-20 15:32:23,198 INFO L226 Difference]: Without dead ends: 50 [2018-09-20 15:32:23,202 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 15:32:23,221 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 50 states. [2018-09-20 15:32:23,240 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 50 to 50. [2018-09-20 15:32:23,241 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 50 states. [2018-09-20 15:32:23,243 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50 states to 50 states and 49 transitions. [2018-09-20 15:32:23,244 INFO L78 Accepts]: Start accepts. Automaton has 50 states and 49 transitions. Word has length 22 [2018-09-20 15:32:23,245 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-20 15:32:23,245 INFO L480 AbstractCegarLoop]: Abstraction has 50 states and 49 transitions. [2018-09-20 15:32:23,245 INFO L481 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-09-20 15:32:23,246 INFO L276 IsEmpty]: Start isEmpty. Operand 50 states and 49 transitions. [2018-09-20 15:32:23,247 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2018-09-20 15:32:23,247 INFO L368 BasicCegarLoop]: Found error trace [2018-09-20 15:32:23,248 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, 1, 1, 1, 1, 1, 1, 1] [2018-09-20 15:32:23,248 INFO L423 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-20 15:32:23,249 INFO L82 PathProgramCache]: Analyzing trace with hash 621785353, now seen corresponding path program 1 times [2018-09-20 15:32:23,249 INFO L227 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-09-20 15:32:23,249 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-09-20 15:32:23,250 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-20 15:32:23,250 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-20 15:32:23,250 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-20 15:32:23,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-09-20 15:32:23,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-09-20 15:32:23,416 INFO L443 BasicCegarLoop]: Counterexample might be feasible [2018-09-20 15:32:23,463 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.09 03:32:23 BoogieIcfgContainer [2018-09-20 15:32:23,463 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-09-20 15:32:23,464 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-09-20 15:32:23,464 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-09-20 15:32:23,464 INFO L276 PluginConnector]: Witness Printer initialized [2018-09-20 15:32:23,465 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.09 03:32:22" (3/4) ... [2018-09-20 15:32:23,471 INFO L147 WitnessPrinter]: No result that supports witness generation found [2018-09-20 15:32:23,471 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-09-20 15:32:23,472 INFO L168 Benchmark]: Toolchain (without parser) took 1615.12 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 134.7 MB). Free memory was 951.9 MB in the beginning and 1.1 GB in the end (delta: -124.9 MB). Peak memory consumption was 9.8 MB. Max. memory is 11.5 GB. [2018-09-20 15:32:23,474 INFO L168 Benchmark]: CDTParser took 0.18 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 15:32:23,475 INFO L168 Benchmark]: CACSL2BoogieTranslator took 315.95 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 15:32:23,476 INFO L168 Benchmark]: Boogie Preprocessor took 42.52 ms. Allocated memory is still 1.0 GB. Free memory is still 941.1 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-09-20 15:32:23,477 INFO L168 Benchmark]: RCFGBuilder took 621.11 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 134.7 MB). Free memory was 941.1 MB in the beginning and 1.1 GB in the end (delta: -163.1 MB). Peak memory consumption was 32.9 MB. Max. memory is 11.5 GB. [2018-09-20 15:32:23,478 INFO L168 Benchmark]: TraceAbstraction took 621.18 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 27.4 MB). Peak memory consumption was 27.4 MB. Max. memory is 11.5 GB. [2018-09-20 15:32:23,479 INFO L168 Benchmark]: Witness Printer took 7.73 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 15:32:23,483 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18 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 315.95 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 42.52 ms. Allocated memory is still 1.0 GB. Free memory is still 941.1 MB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 621.11 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 134.7 MB). Free memory was 941.1 MB in the beginning and 1.1 GB in the end (delta: -163.1 MB). Peak memory consumption was 32.9 MB. Max. memory is 11.5 GB. * TraceAbstraction took 621.18 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 27.4 MB). Peak memory consumption was 27.4 MB. Max. memory is 11.5 GB. * Witness Printer took 7.73 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: 49]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: overapproximation of someBinaryFLOATComparisonOperation at line 33, overapproximation of bitwiseOr at line 26, overapproximation of someBinaryArithmeticFLOAToperation at line 43. Possible FailurePath: [L43] float x = 0.0f / 0.0f; [L44] float y = __VERIFIER_nondet_float(); [L45] CALL, EXPR copysign_float(x, y) VAL [\old(x)=11, \old(y)=10] [L13] __uint32_t ix, iy; VAL [\old(x)=11, \old(y)=10, x=11, y=10] [L15] FCALL ieee_float_shape_type gf_u; VAL [\old(x)=11, \old(y)=10, gf_u={13:0}, x=11, y=10] [L16] FCALL gf_u.value = (x) VAL [\old(x)=11, \old(y)=10, gf_u={13:0}, x=11, y=10] [L17] EXPR, FCALL gf_u.word VAL [\old(x)=11, \old(y)=10, gf_u={13:0}, gf_u.word=7, x=11, y=10] [L17] (ix) = gf_u.word VAL [\old(x)=11, \old(y)=10, gf_u={13:0}, gf_u.word=7, ix=7, x=11, y=10] [L17] FCALL (ix) = gf_u.word VAL [(ix) = gf_u.word=8, \old(x)=11, \old(y)=10, gf_u={13:0}, gf_u.word=7, ix=7, x=11, y=10] [L18] COND FALSE !(0) VAL [\old(x)=11, \old(y)=10, ix=7, x=11, y=10] [L20] FCALL ieee_float_shape_type gf_u; VAL [\old(x)=11, \old(y)=10, gf_u={9:0}, ix=7, x=11, y=10] [L21] FCALL gf_u.value = (y) VAL [\old(x)=11, \old(y)=10, gf_u={9:0}, ix=7, x=11, y=10] [L22] EXPR, FCALL gf_u.word VAL [\old(x)=11, \old(y)=10, gf_u={9:0}, gf_u.word=12, ix=7, x=11, y=10] [L22] (iy) = gf_u.word VAL [\old(x)=11, \old(y)=10, gf_u={9:0}, gf_u.word=12, ix=7, iy=12, x=11, y=10] [L22] FCALL (iy) = gf_u.word VAL [(iy) = gf_u.word=14, \old(x)=11, \old(y)=10, gf_u={9:0}, gf_u.word=12, ix=7, iy=12, x=11, y=10] [L23] COND FALSE !(0) VAL [\old(x)=11, \old(y)=10, ix=7, iy=12, x=11, y=10] [L25] FCALL ieee_float_shape_type sf_u; VAL [\old(x)=11, \old(y)=10, ix=7, iy=12, sf_u={9:0}, x=11, y=10] [L26] FCALL sf_u.word = ((ix & 0x7fffffff) | (iy & 0x80000000)) VAL [\old(x)=11, \old(y)=10, ix=7, iy=12, sf_u={9:0}, x=11, y=10] [L27] EXPR, FCALL sf_u.value VAL [\old(x)=11, \old(y)=10, ix=7, iy=12, sf_u={9:0}, sf_u.value=14, x=11, y=10] [L27] (x) = sf_u.value VAL [\old(x)=11, \old(y)=10, ix=7, iy=12, sf_u={9:0}, sf_u.value=14, x=14, y=10] [L27] FCALL (x) = sf_u.value VAL [(x) = sf_u.value=5, \old(x)=11, \old(y)=10, ix=7, iy=12, sf_u={9:0}, sf_u.value=14, x=14, y=10] [L28] COND FALSE !(0) VAL [\old(x)=11, \old(y)=10, ix=7, iy=12, x=14, y=10] [L29] RET return x; VAL [\old(x)=11, \old(y)=10, \result=14, ix=7, iy=12, x=14, y=10] [L45] EXPR copysign_float(x, y) VAL [copysign_float(x, y)=14, x=11, y=10] [L45] float res = copysign_float(x, y); [L48] CALL, EXPR isnan_float(res) VAL [\old(x)=14] [L33] RET return x != x; VAL [\old(x)=14, \result=0, x=14] [L48] EXPR isnan_float(res) VAL [isnan_float(res)=0, res=14, x=11, y=10] [L48] COND TRUE !isnan_float(res) [L49] __VERIFIER_error() VAL [res=14, x=11, y=10] - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 54 locations, 1 error locations. UNSAFE Result, 0.5s OverallTime, 2 OverallIterations, 1 TraceHistogramMax, 0.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 53 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=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, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 71 NumberOfCodeBlocks, 71 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 15:32:25,976 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-09-20 15:32:25,979 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-09-20 15:32:25,992 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-09-20 15:32:25,993 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-09-20 15:32:25,994 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-09-20 15:32:25,995 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-09-20 15:32:25,997 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-09-20 15:32:25,999 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-09-20 15:32:26,000 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-09-20 15:32:26,001 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-09-20 15:32:26,001 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-09-20 15:32:26,002 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-09-20 15:32:26,004 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-09-20 15:32:26,005 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-09-20 15:32:26,006 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-09-20 15:32:26,007 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-09-20 15:32:26,009 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-09-20 15:32:26,011 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-09-20 15:32:26,013 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-09-20 15:32:26,014 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-09-20 15:32:26,016 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-09-20 15:32:26,019 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-09-20 15:32:26,019 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-09-20 15:32:26,019 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-09-20 15:32:26,021 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-09-20 15:32:26,022 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-09-20 15:32:26,023 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-09-20 15:32:26,024 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-09-20 15:32:26,025 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-09-20 15:32:26,026 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-09-20 15:32:26,027 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-09-20 15:32:26,027 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-09-20 15:32:26,027 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-09-20 15:32:26,028 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-09-20 15:32:26,029 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-09-20 15:32:26,030 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2018-09-20 15:32:26,046 INFO L110 SettingsManager]: Loading preferences was successful [2018-09-20 15:32:26,046 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-09-20 15:32:26,047 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-09-20 15:32:26,048 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-09-20 15:32:26,048 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-09-20 15:32:26,048 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-09-20 15:32:26,049 INFO L133 SettingsManager]: * Use SBE=true [2018-09-20 15:32:26,049 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-09-20 15:32:26,049 INFO L133 SettingsManager]: * sizeof long=4 [2018-09-20 15:32:26,049 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-09-20 15:32:26,050 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-09-20 15:32:26,050 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-09-20 15:32:26,051 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-09-20 15:32:26,051 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-09-20 15:32:26,051 INFO L133 SettingsManager]: * Use bitvectors instead of ints=true [2018-09-20 15:32:26,051 INFO L133 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2018-09-20 15:32:26,051 INFO L133 SettingsManager]: * sizeof long double=12 [2018-09-20 15:32:26,051 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-09-20 15:32:26,052 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-09-20 15:32:26,052 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-09-20 15:32:26,052 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-09-20 15:32:26,052 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-09-20 15:32:26,052 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-09-20 15:32:26,054 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-09-20 15:32:26,054 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-09-20 15:32:26,054 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-09-20 15:32:26,054 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-09-20 15:32:26,055 INFO L133 SettingsManager]: * Trace refinement strategy=WOLF [2018-09-20 15:32:26,055 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-09-20 15:32:26,055 INFO L133 SettingsManager]: * Command for external solver=cvc4nyu --tear-down-incremental --rewrite-divk --print-success --lang smt [2018-09-20 15:32:26,055 INFO L133 SettingsManager]: * Logic for external solver=AUFBV [2018-09-20 15:32:26,055 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 -> c91754c7d707a58127a2dc4a18babac51d557647 [2018-09-20 15:32:26,124 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-09-20 15:32:26,140 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-09-20 15:32:26,145 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-09-20 15:32:26,147 INFO L271 PluginConnector]: Initializing CDTParser... [2018-09-20 15:32:26,148 INFO L276 PluginConnector]: CDTParser initialized [2018-09-20 15:32:26,148 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/float-newlib/float_req_bl_1381_true-unreach-call.c [2018-09-20 15:32:26,532 INFO L221 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/55ccfce96/044d2a5d4ed34ff58c5f5ca41ee5ac12/FLAGece284041 [2018-09-20 15:32:26,669 INFO L277 CDTParser]: Found 1 translation units. [2018-09-20 15:32:26,670 INFO L159 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/float-newlib/float_req_bl_1381_true-unreach-call.c [2018-09-20 15:32:26,676 INFO L325 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/55ccfce96/044d2a5d4ed34ff58c5f5ca41ee5ac12/FLAGece284041 [2018-09-20 15:32:26,694 INFO L333 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/55ccfce96/044d2a5d4ed34ff58c5f5ca41ee5ac12 [2018-09-20 15:32:26,701 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-09-20 15:32:26,705 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-09-20 15:32:26,706 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-09-20 15:32:26,706 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-09-20 15:32:26,713 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-09-20 15:32:26,714 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.09 03:32:26" (1/1) ... [2018-09-20 15:32:26,718 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@595a77d7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 03:32:26, skipping insertion in model container [2018-09-20 15:32:26,718 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.09 03:32:26" (1/1) ... [2018-09-20 15:32:26,730 INFO L160 ieTranslatorObserver]: Starting translation in SV-COMP mode [2018-09-20 15:32:26,963 INFO L170 PostProcessor]: Settings: Checked method=main [2018-09-20 15:32:26,985 INFO L424 MainDispatcher]: Starting main dispatcher in SV-COMP mode [2018-09-20 15:32:27,010 INFO L170 PostProcessor]: Settings: Checked method=main [2018-09-20 15:32:27,041 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 03:32:27 WrapperNode [2018-09-20 15:32:27,041 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-09-20 15:32:27,042 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-09-20 15:32:27,042 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-09-20 15:32:27,042 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-09-20 15:32:27,059 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 03:32:27" (1/1) ... [2018-09-20 15:32:27,059 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 03:32:27" (1/1) ... [2018-09-20 15:32:27,073 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 03:32:27" (1/1) ... [2018-09-20 15:32:27,073 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 03:32:27" (1/1) ... [2018-09-20 15:32:27,080 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 03:32:27" (1/1) ... [2018-09-20 15:32:27,086 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 03:32:27" (1/1) ... [2018-09-20 15:32:27,089 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 03:32:27" (1/1) ... [2018-09-20 15:32:27,102 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-09-20 15:32:27,104 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-09-20 15:32:27,104 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-09-20 15:32:27,104 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-09-20 15:32:27,106 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 03:32:27" (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 15:32:27,178 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-09-20 15:32:27,179 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-09-20 15:32:27,179 INFO L138 BoogieDeclarations]: Found implementation of procedure copysign_float [2018-09-20 15:32:27,179 INFO L138 BoogieDeclarations]: Found implementation of procedure isnan_float [2018-09-20 15:32:27,179 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-09-20 15:32:27,180 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2018-09-20 15:32:27,180 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_float [2018-09-20 15:32:27,180 INFO L130 BoogieDeclarations]: Found specification of procedure copysign_float [2018-09-20 15:32:27,180 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-09-20 15:32:27,180 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4 [2018-09-20 15:32:27,180 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2018-09-20 15:32:27,181 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-09-20 15:32:27,181 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2018-09-20 15:32:27,181 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4 [2018-09-20 15:32:27,181 INFO L130 BoogieDeclarations]: Found specification of procedure isnan_float [2018-09-20 15:32:27,181 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-09-20 15:32:27,183 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-09-20 15:32:27,183 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-09-20 15:32:27,184 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intFLOATTYPE4 [2018-09-20 15:32:27,184 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE4 [2018-09-20 15:32:27,436 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-20 15:32:27,478 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-20 15:32:27,594 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-20 15:32:27,615 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-20 15:32:27,796 INFO L365 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-09-20 15:32:27,797 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.09 03:32:27 BoogieIcfgContainer [2018-09-20 15:32:27,797 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-09-20 15:32:27,798 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-09-20 15:32:27,799 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-09-20 15:32:27,802 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-09-20 15:32:27,802 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.09 03:32:26" (1/3) ... [2018-09-20 15:32:27,803 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@29a7be1c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.09 03:32:27, skipping insertion in model container [2018-09-20 15:32:27,804 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 03:32:27" (2/3) ... [2018-09-20 15:32:27,804 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@29a7be1c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.09 03:32:27, skipping insertion in model container [2018-09-20 15:32:27,804 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.09 03:32:27" (3/3) ... [2018-09-20 15:32:27,807 INFO L112 eAbstractionObserver]: Analyzing ICFG float_req_bl_1381_true-unreach-call.c [2018-09-20 15:32:27,818 INFO L137 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-09-20 15:32:27,826 INFO L149 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-09-20 15:32:27,880 INFO L130 ementStrategyFactory]: Using default assertion order modulation [2018-09-20 15:32:27,881 INFO L381 AbstractCegarLoop]: Interprodecural is true [2018-09-20 15:32:27,881 INFO L382 AbstractCegarLoop]: Hoare is true [2018-09-20 15:32:27,882 INFO L383 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-09-20 15:32:27,882 INFO L384 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-09-20 15:32:27,882 INFO L385 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-09-20 15:32:27,882 INFO L386 AbstractCegarLoop]: Difference is false [2018-09-20 15:32:27,882 INFO L387 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-09-20 15:32:27,883 INFO L392 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-09-20 15:32:27,907 INFO L276 IsEmpty]: Start isEmpty. Operand 53 states. [2018-09-20 15:32:27,917 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2018-09-20 15:32:27,917 INFO L368 BasicCegarLoop]: Found error trace [2018-09-20 15:32:27,919 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 15:32:27,923 INFO L423 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-20 15:32:27,933 INFO L82 PathProgramCache]: Analyzing trace with hash 325628866, now seen corresponding path program 1 times [2018-09-20 15:32:27,937 INFO L227 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-09-20 15:32:27,937 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 2 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with mathsat -unsat_core_generation=3 [2018-09-20 15:32:27,945 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-20 15:32:28,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-20 15:32:28,023 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-20 15:32:28,043 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 15:32:28,044 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-09-20 15:32:28,057 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-20 15:32:28,058 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-09-20 15:32:28,061 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-09-20 15:32:28,077 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-09-20 15:32:28,078 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-09-20 15:32:28,080 INFO L87 Difference]: Start difference. First operand 53 states. Second operand 2 states. [2018-09-20 15:32:28,105 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-20 15:32:28,106 INFO L93 Difference]: Finished difference Result 98 states and 110 transitions. [2018-09-20 15:32:28,106 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-09-20 15:32:28,108 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 21 [2018-09-20 15:32:28,108 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-20 15:32:28,119 INFO L225 Difference]: With dead ends: 98 [2018-09-20 15:32:28,119 INFO L226 Difference]: Without dead ends: 49 [2018-09-20 15:32:28,123 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 15:32:28,139 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 49 states. [2018-09-20 15:32:28,159 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 49 to 49. [2018-09-20 15:32:28,160 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 49 states. [2018-09-20 15:32:28,162 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49 states to 49 states and 48 transitions. [2018-09-20 15:32:28,164 INFO L78 Accepts]: Start accepts. Automaton has 49 states and 48 transitions. Word has length 21 [2018-09-20 15:32:28,164 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-20 15:32:28,165 INFO L480 AbstractCegarLoop]: Abstraction has 49 states and 48 transitions. [2018-09-20 15:32:28,165 INFO L481 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-09-20 15:32:28,165 INFO L276 IsEmpty]: Start isEmpty. Operand 49 states and 48 transitions. [2018-09-20 15:32:28,167 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2018-09-20 15:32:28,167 INFO L368 BasicCegarLoop]: Found error trace [2018-09-20 15:32:28,167 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, 1, 1, 1, 1, 1, 1] [2018-09-20 15:32:28,167 INFO L423 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-20 15:32:28,168 INFO L82 PathProgramCache]: Analyzing trace with hash 477325184, now seen corresponding path program 1 times [2018-09-20 15:32:28,169 INFO L227 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-09-20 15:32:28,169 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 15:32:28,181 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-20 15:32:28,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-20 15:32:28,273 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-20 15:32:28,417 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 15:32:28,432 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 15:32:28,433 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-09-20 15:32:28,466 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-20 15:32:28,545 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 15:32:28,546 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:21, output treesize:21 [2018-09-20 15:32:28,637 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 15:32:28,647 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 15:32:28,647 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-09-20 15:32:28,657 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-20 15:32:28,679 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 15:32:28,680 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:29, output treesize:9 [2018-09-20 15:32:28,771 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 17 treesize of output 14 [2018-09-20 15:32:28,775 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 14 treesize of output 13 [2018-09-20 15:32:28,776 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-09-20 15:32:28,783 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-20 15:32:28,799 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2018-09-20 15:32:28,799 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:27, output treesize:23 [2018-09-20 15:32:28,958 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 35 treesize of output 27 [2018-09-20 15:32:28,974 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 27 treesize of output 27 [2018-09-20 15:32:28,975 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-09-20 15:32:29,001 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-20 15:32:29,085 INFO L267 ElimStorePlain]: Start of recursive call 1: 4 dim-0 vars, 1 dim-2 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2018-09-20 15:32:29,086 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 5 variables, input treesize:44, output treesize:37 [2018-09-20 15:32:30,182 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 15:32:30,183 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-09-20 15:32:30,197 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-20 15:32:30,197 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2018-09-20 15:32:30,200 INFO L459 AbstractCegarLoop]: Interpolant automaton has 15 states [2018-09-20 15:32:30,200 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2018-09-20 15:32:30,201 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=182, Unknown=0, NotChecked=0, Total=210 [2018-09-20 15:32:30,201 INFO L87 Difference]: Start difference. First operand 49 states and 48 transitions. Second operand 15 states. [2018-09-20 15:32:30,628 WARN L178 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 20 [2018-09-20 15:32:32,320 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-20 15:32:32,320 INFO L93 Difference]: Finished difference Result 49 states and 48 transitions. [2018-09-20 15:32:32,320 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2018-09-20 15:32:32,321 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 48 [2018-09-20 15:32:32,321 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-20 15:32:32,322 INFO L225 Difference]: With dead ends: 49 [2018-09-20 15:32:32,322 INFO L226 Difference]: Without dead ends: 0 [2018-09-20 15:32:32,324 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 90 ImplicationChecksByTransitivity, 2.6s TimeCoverageRelationStatistics Valid=124, Invalid=688, Unknown=0, NotChecked=0, Total=812 [2018-09-20 15:32:32,324 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-09-20 15:32:32,324 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-09-20 15:32:32,325 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-09-20 15:32:32,325 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-09-20 15:32:32,325 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 48 [2018-09-20 15:32:32,325 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-20 15:32:32,325 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-09-20 15:32:32,326 INFO L481 AbstractCegarLoop]: Interpolant automaton has 15 states. [2018-09-20 15:32:32,326 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-09-20 15:32:32,326 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-09-20 15:32:32,331 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2018-09-20 15:32:32,610 INFO L426 ceAbstractionStarter]: For program point isnan_floatFINAL(line 33) no Hoare annotation was computed. [2018-09-20 15:32:32,610 INFO L429 ceAbstractionStarter]: At program point isnan_floatENTRY(line 33) the Hoare annotation is: true [2018-09-20 15:32:32,610 INFO L426 ceAbstractionStarter]: For program point isnan_floatEXIT(line 33) no Hoare annotation was computed. [2018-09-20 15:32:32,610 INFO L426 ceAbstractionStarter]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2018-09-20 15:32:32,611 INFO L429 ceAbstractionStarter]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: true [2018-09-20 15:32:32,611 INFO L426 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2018-09-20 15:32:32,611 INFO L426 ceAbstractionStarter]: For program point L27(line 27) no Hoare annotation was computed. [2018-09-20 15:32:32,611 INFO L426 ceAbstractionStarter]: For program point L27-1(line 27) no Hoare annotation was computed. [2018-09-20 15:32:32,611 INFO L426 ceAbstractionStarter]: For program point L27-2(line 27) no Hoare annotation was computed. [2018-09-20 15:32:32,611 INFO L426 ceAbstractionStarter]: For program point copysign_floatEXIT(lines 12 30) no Hoare annotation was computed. [2018-09-20 15:32:32,612 INFO L426 ceAbstractionStarter]: For program point L19(lines 19 23) no Hoare annotation was computed. [2018-09-20 15:32:32,612 INFO L426 ceAbstractionStarter]: For program point L19-2(lines 12 30) no Hoare annotation was computed. [2018-09-20 15:32:32,612 INFO L426 ceAbstractionStarter]: For program point L15(line 15) no Hoare annotation was computed. [2018-09-20 15:32:32,612 INFO L426 ceAbstractionStarter]: For program point L15-1(line 15) no Hoare annotation was computed. [2018-09-20 15:32:32,612 INFO L426 ceAbstractionStarter]: For program point L15-2(line 15) no Hoare annotation was computed. [2018-09-20 15:32:32,612 INFO L426 ceAbstractionStarter]: For program point L15-3(line 15) no Hoare annotation was computed. [2018-09-20 15:32:32,612 INFO L426 ceAbstractionStarter]: For program point L24(lines 24 28) no Hoare annotation was computed. [2018-09-20 15:32:32,613 INFO L426 ceAbstractionStarter]: For program point L24-2(lines 12 30) no Hoare annotation was computed. [2018-09-20 15:32:32,613 INFO L426 ceAbstractionStarter]: For program point L24-3(lines 24 28) no Hoare annotation was computed. [2018-09-20 15:32:32,613 INFO L426 ceAbstractionStarter]: For program point L20(line 20) no Hoare annotation was computed. [2018-09-20 15:32:32,613 INFO L426 ceAbstractionStarter]: For program point L20-1(line 20) no Hoare annotation was computed. [2018-09-20 15:32:32,613 INFO L426 ceAbstractionStarter]: For program point L20-2(line 20) no Hoare annotation was computed. [2018-09-20 15:32:32,613 INFO L426 ceAbstractionStarter]: For program point L20-3(line 20) no Hoare annotation was computed. [2018-09-20 15:32:32,613 INFO L426 ceAbstractionStarter]: For program point L16(line 16) no Hoare annotation was computed. [2018-09-20 15:32:32,613 INFO L426 ceAbstractionStarter]: For program point L25(line 25) no Hoare annotation was computed. [2018-09-20 15:32:32,614 INFO L426 ceAbstractionStarter]: For program point L25-1(line 25) no Hoare annotation was computed. [2018-09-20 15:32:32,614 INFO L426 ceAbstractionStarter]: For program point L25-2(line 25) no Hoare annotation was computed. [2018-09-20 15:32:32,614 INFO L426 ceAbstractionStarter]: For program point L25-3(line 25) no Hoare annotation was computed. [2018-09-20 15:32:32,614 INFO L426 ceAbstractionStarter]: For program point L21(line 21) no Hoare annotation was computed. [2018-09-20 15:32:32,614 INFO L426 ceAbstractionStarter]: For program point L17(line 17) no Hoare annotation was computed. [2018-09-20 15:32:32,614 INFO L426 ceAbstractionStarter]: For program point L17-1(line 17) no Hoare annotation was computed. [2018-09-20 15:32:32,614 INFO L426 ceAbstractionStarter]: For program point L17-2(line 17) no Hoare annotation was computed. [2018-09-20 15:32:32,615 INFO L426 ceAbstractionStarter]: For program point L26(line 26) no Hoare annotation was computed. [2018-09-20 15:32:32,615 INFO L426 ceAbstractionStarter]: For program point L22(line 22) no Hoare annotation was computed. [2018-09-20 15:32:32,615 INFO L426 ceAbstractionStarter]: For program point L22-1(line 22) no Hoare annotation was computed. [2018-09-20 15:32:32,615 INFO L429 ceAbstractionStarter]: At program point copysign_floatENTRY(lines 12 30) the Hoare annotation is: true [2018-09-20 15:32:32,615 INFO L426 ceAbstractionStarter]: For program point L22-2(line 22) no Hoare annotation was computed. [2018-09-20 15:32:32,616 INFO L426 ceAbstractionStarter]: For program point L14-1(lines 14 18) no Hoare annotation was computed. [2018-09-20 15:32:32,616 INFO L422 ceAbstractionStarter]: At program point L14-3(lines 14 18) the Hoare annotation is: (= |copysign_float_#in~x| copysign_float_~x) [2018-09-20 15:32:32,616 INFO L426 ceAbstractionStarter]: For program point copysign_floatFINAL(lines 12 30) no Hoare annotation was computed. [2018-09-20 15:32:32,616 INFO L426 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2018-09-20 15:32:32,616 INFO L429 ceAbstractionStarter]: At program point L-1(line -1) the Hoare annotation is: true [2018-09-20 15:32:32,616 INFO L429 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2018-09-20 15:32:32,616 INFO L426 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2018-09-20 15:32:32,617 INFO L426 ceAbstractionStarter]: For program point L49(line 49) no Hoare annotation was computed. [2018-09-20 15:32:32,617 INFO L422 ceAbstractionStarter]: At program point L48(line 48) the Hoare annotation is: (and (= (fp.div RNE (_ +zero 8 24) (_ +zero 8 24)) main_~x~0) (exists ((copysign_float_~iy~0 (_ BitVec 32)) (copysign_float_~ix~0 (_ BitVec 32))) (and (= (let ((.cse0 (bvor (bvand copysign_float_~ix~0 (_ bv2147483647 32)) (bvand copysign_float_~iy~0 (_ bv2147483648 32))))) (fp ((_ extract 31 31) .cse0) ((_ extract 30 23) .cse0) ((_ extract 22 0) .cse0))) main_~res~0) (= (fp.div RNE (_ +zero 8 24) (_ +zero 8 24)) (fp ((_ extract 31 31) copysign_float_~ix~0) ((_ extract 30 23) copysign_float_~ix~0) ((_ extract 22 0) copysign_float_~ix~0)))))) [2018-09-20 15:32:32,617 INFO L426 ceAbstractionStarter]: For program point L48-1(lines 48 51) no Hoare annotation was computed. [2018-09-20 15:32:32,617 INFO L429 ceAbstractionStarter]: At program point mainENTRY(lines 35 54) the Hoare annotation is: true [2018-09-20 15:32:32,617 INFO L422 ceAbstractionStarter]: At program point L45(line 45) the Hoare annotation is: (= (fp.div RNE (_ +zero 8 24) (_ +zero 8 24)) main_~x~0) [2018-09-20 15:32:32,618 INFO L426 ceAbstractionStarter]: For program point mainFINAL(lines 35 54) no Hoare annotation was computed. [2018-09-20 15:32:32,618 INFO L426 ceAbstractionStarter]: For program point L45-1(line 45) no Hoare annotation was computed. [2018-09-20 15:32:32,618 INFO L426 ceAbstractionStarter]: For program point mainEXIT(lines 35 54) no Hoare annotation was computed. [2018-09-20 15:32:32,618 INFO L426 ceAbstractionStarter]: For program point mainErr0ASSERT_VIOLATIONERROR_FUNCTION(line 49) no Hoare annotation was computed. [2018-09-20 15:32:32,632 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.09 03:32:32 BoogieIcfgContainer [2018-09-20 15:32:32,632 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-09-20 15:32:32,632 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-09-20 15:32:32,633 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-09-20 15:32:32,633 INFO L276 PluginConnector]: Witness Printer initialized [2018-09-20 15:32:32,633 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.09 03:32:27" (3/4) ... [2018-09-20 15:32:32,637 INFO L144 WitnessPrinter]: Generating witness for correct program [2018-09-20 15:32:32,646 INFO L316 RCFGBacktranslator]: Ignoring RootEdge to procedure isnan_float [2018-09-20 15:32:32,646 INFO L316 RCFGBacktranslator]: Ignoring RootEdge to procedure ULTIMATE.init [2018-09-20 15:32:32,647 INFO L316 RCFGBacktranslator]: Ignoring RootEdge to procedure copysign_float [2018-09-20 15:32:32,647 INFO L316 RCFGBacktranslator]: Ignoring RootEdge to procedure main [2018-09-20 15:32:32,655 INFO L850 BoogieBacktranslator]: Reduced CFG by removing 17 nodes and edges [2018-09-20 15:32:32,655 INFO L850 BoogieBacktranslator]: Reduced CFG by removing 7 nodes and edges [2018-09-20 15:32:32,655 INFO L850 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2018-09-20 15:32:32,693 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: \old(x) == x [2018-09-20 15:32:32,720 INFO L145 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2018-09-20 15:32:32,720 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-09-20 15:32:32,721 INFO L168 Benchmark]: Toolchain (without parser) took 6019.06 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 152.6 MB). Free memory was 951.9 MB in the beginning and 961.8 MB in the end (delta: -10.0 MB). Peak memory consumption was 142.6 MB. Max. memory is 11.5 GB. [2018-09-20 15:32:32,725 INFO L168 Benchmark]: CDTParser took 0.25 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 15:32:32,726 INFO L168 Benchmark]: CACSL2BoogieTranslator took 335.59 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 15:32:32,727 INFO L168 Benchmark]: Boogie Preprocessor took 61.11 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 15:32:32,728 INFO L168 Benchmark]: RCFGBuilder took 693.50 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 152.6 MB). Free memory was 935.7 MB in the beginning and 1.1 GB in the end (delta: -191.7 MB). Peak memory consumption was 22.1 MB. Max. memory is 11.5 GB. [2018-09-20 15:32:32,729 INFO L168 Benchmark]: TraceAbstraction took 4833.49 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 968.6 MB in the end (delta: 158.8 MB). Peak memory consumption was 158.8 MB. Max. memory is 11.5 GB. [2018-09-20 15:32:32,730 INFO L168 Benchmark]: Witness Printer took 87.77 ms. Allocated memory is still 1.2 GB. Free memory was 968.6 MB in the beginning and 961.8 MB in the end (delta: 6.8 MB). Peak memory consumption was 6.8 MB. Max. memory is 11.5 GB. [2018-09-20 15:32:32,736 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.25 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 335.59 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 61.11 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 693.50 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 152.6 MB). Free memory was 935.7 MB in the beginning and 1.1 GB in the end (delta: -191.7 MB). Peak memory consumption was 22.1 MB. Max. memory is 11.5 GB. * TraceAbstraction took 4833.49 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 968.6 MB in the end (delta: 158.8 MB). Peak memory consumption was 158.8 MB. Max. memory is 11.5 GB. * Witness Printer took 87.77 ms. Allocated memory is still 1.2 GB. Free memory was 968.6 MB in the beginning and 961.8 MB in the end (delta: 6.8 MB). Peak memory consumption was 6.8 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 49]: 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: 14]: Loop Invariant Derived loop invariant: \old(x) == x - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 53 locations, 1 error locations. SAFE Result, 4.7s OverallTime, 2 OverallIterations, 1 TraceHistogramMax, 2.1s AutomataDifference, 0.0s DeadEndRemovalTime, 0.2s HoareAnnotationTime, HoareTripleCheckerStatistics: 86 SDtfs, 58 SDslu, 336 SDs, 0 SdLazy, 151 SolverSat, 12 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.7s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 81 GetRequests, 54 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 90 ImplicationChecksByTransitivity, 2.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=53occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s AbstIntTime, 0 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 2 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 9 LocationsWithAnnotation, 10 PreInvPairs, 12 NumberOfFragments, 63 HoareAnnotationTreeSize, 10 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 9 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.2s HoareSimplificationTimeInter, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 1.9s InterpolantComputationTime, 69 NumberOfCodeBlocks, 69 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 67 ConstructedInterpolants, 12 QuantifiedInterpolants, 33488 SizeOfPredicates, 15 NumberOfNonLiveVariables, 141 ConjunctsInSsa, 19 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...