./Ultimate.py --spec /storage/repos/svcomp/c/properties/unreach-call.prp --file /storage/repos/svcomp/c/float-newlib/float_req_bl_1052a_true-unreach-call.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 91b1670e 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 /storage/repos/svcomp/c/float-newlib/float_req_bl_1052a_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 269c6e32b98d41be14ec8894bc32516e2df9c183 ............................................................................................................................................................................................................................................................................................................ 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 /storage/repos/svcomp/c/float-newlib/float_req_bl_1052a_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 269c6e32b98d41be14ec8894bc32516e2df9c183 ............................................................................................................................................................................................................................................................................................................................................................................................................................................. Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.24-91b1670 [2018-11-28 18:03:34,092 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-28 18:03:34,094 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-28 18:03:34,106 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-28 18:03:34,106 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-28 18:03:34,107 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-28 18:03:34,109 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-28 18:03:34,111 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-28 18:03:34,112 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-28 18:03:34,113 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-28 18:03:34,114 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-28 18:03:34,115 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-28 18:03:34,115 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-28 18:03:34,116 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-28 18:03:34,118 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-28 18:03:34,118 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-28 18:03:34,119 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-28 18:03:34,121 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-28 18:03:34,123 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-28 18:03:34,128 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-28 18:03:34,129 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-28 18:03:34,131 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-28 18:03:34,140 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-28 18:03:34,140 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-28 18:03:34,140 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-28 18:03:34,141 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-28 18:03:34,145 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-28 18:03:34,145 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-28 18:03:34,146 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-28 18:03:34,150 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-28 18:03:34,150 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-28 18:03:34,151 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-28 18:03:34,151 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-28 18:03:34,152 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-28 18:03:34,153 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-28 18:03:34,153 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-28 18:03:34,154 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2018-11-28 18:03:34,182 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-28 18:03:34,185 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-28 18:03:34,186 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-28 18:03:34,186 INFO L133 SettingsManager]: * ... calls to implemented procedures=ONLY_FOR_CONCURRENT_PROGRAMS [2018-11-28 18:03:34,187 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-11-28 18:03:34,187 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-11-28 18:03:34,187 INFO L133 SettingsManager]: * Use SBE=true [2018-11-28 18:03:34,187 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-28 18:03:34,188 INFO L133 SettingsManager]: * sizeof long=4 [2018-11-28 18:03:34,188 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-28 18:03:34,188 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-11-28 18:03:34,188 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-28 18:03:34,188 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-28 18:03:34,188 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-28 18:03:34,189 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-28 18:03:34,189 INFO L133 SettingsManager]: * sizeof long double=12 [2018-11-28 18:03:34,189 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-28 18:03:34,189 INFO L133 SettingsManager]: * Use constant arrays=true [2018-11-28 18:03:34,189 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-28 18:03:34,190 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-28 18:03:34,190 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-28 18:03:34,190 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-28 18:03:34,190 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-28 18:03:34,190 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-28 18:03:34,191 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-28 18:03:34,191 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-28 18:03:34,193 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-28 18:03:34,193 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-11-28 18:03:34,193 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-28 18:03:34,193 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-11-28 18:03:34,193 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 -> 269c6e32b98d41be14ec8894bc32516e2df9c183 [2018-11-28 18:03:34,245 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-28 18:03:34,268 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-28 18:03:34,276 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-28 18:03:34,278 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-28 18:03:34,278 INFO L276 PluginConnector]: CDTParser initialized [2018-11-28 18:03:34,279 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/svcomp/c/float-newlib/float_req_bl_1052a_true-unreach-call.c [2018-11-28 18:03:34,358 INFO L221 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d5dde30b2/448531d5d44944c09df060aa76207798/FLAG149eb35d1 [2018-11-28 18:03:34,867 INFO L307 CDTParser]: Found 1 translation units. [2018-11-28 18:03:34,868 INFO L161 CDTParser]: Scanning /storage/repos/svcomp/c/float-newlib/float_req_bl_1052a_true-unreach-call.c [2018-11-28 18:03:34,876 INFO L355 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d5dde30b2/448531d5d44944c09df060aa76207798/FLAG149eb35d1 [2018-11-28 18:03:35,228 INFO L363 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d5dde30b2/448531d5d44944c09df060aa76207798 [2018-11-28 18:03:35,232 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-28 18:03:35,233 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-11-28 18:03:35,234 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-28 18:03:35,234 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-28 18:03:35,238 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-28 18:03:35,239 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 06:03:35" (1/1) ... [2018-11-28 18:03:35,242 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@656d756e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 06:03:35, skipping insertion in model container [2018-11-28 18:03:35,243 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 06:03:35" (1/1) ... [2018-11-28 18:03:35,251 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-28 18:03:35,276 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-11-28 18:03:35,544 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-11-28 18:03:35,554 INFO L191 MainTranslator]: Completed pre-run [2018-11-28 18:03:35,608 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-11-28 18:03:35,650 INFO L195 MainTranslator]: Completed translation [2018-11-28 18:03:35,650 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 06:03:35 WrapperNode [2018-11-28 18:03:35,650 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-28 18:03:35,651 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-28 18:03:35,652 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-28 18:03:35,652 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-28 18:03:35,662 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 06:03:35" (1/1) ... [2018-11-28 18:03:35,682 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 06:03:35" (1/1) ... [2018-11-28 18:03:35,692 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-28 18:03:35,693 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-28 18:03:35,694 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-28 18:03:35,695 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-28 18:03:35,708 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 06:03:35" (1/1) ... [2018-11-28 18:03:35,708 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 06:03:35" (1/1) ... [2018-11-28 18:03:35,721 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 06:03:35" (1/1) ... [2018-11-28 18:03:35,721 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 06:03:35" (1/1) ... [2018-11-28 18:03:35,745 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 06:03:35" (1/1) ... [2018-11-28 18:03:35,825 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 06:03:35" (1/1) ... [2018-11-28 18:03:35,827 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 06:03:35" (1/1) ... [2018-11-28 18:03:35,830 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-28 18:03:35,831 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-28 18:03:35,831 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-28 18:03:35,831 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-28 18:03:35,832 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 06:03:35" (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 [2018-11-28 18:03:35,897 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2018-11-28 18:03:35,897 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2018-11-28 18:03:35,897 INFO L130 BoogieDeclarations]: Found specification of procedure isinf_float [2018-11-28 18:03:35,897 INFO L138 BoogieDeclarations]: Found implementation of procedure isinf_float [2018-11-28 18:03:35,898 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-28 18:03:35,898 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-28 18:03:35,898 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2018-11-28 18:03:35,898 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-11-28 18:03:35,898 INFO L130 BoogieDeclarations]: Found specification of procedure floor_float [2018-11-28 18:03:35,899 INFO L138 BoogieDeclarations]: Found implementation of procedure floor_float [2018-11-28 18:03:35,899 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-28 18:03:35,899 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-28 18:03:35,899 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2018-11-28 18:03:35,899 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-28 18:03:35,899 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-28 18:03:35,900 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-11-28 18:03:36,481 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-28 18:03:36,481 INFO L280 CfgBuilder]: Removed 6 assue(true) statements. [2018-11-28 18:03:36,482 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 06:03:36 BoogieIcfgContainer [2018-11-28 18:03:36,482 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-28 18:03:36,489 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-28 18:03:36,491 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-28 18:03:36,494 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-28 18:03:36,494 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.11 06:03:35" (1/3) ... [2018-11-28 18:03:36,495 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4fdd3fdb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 06:03:36, skipping insertion in model container [2018-11-28 18:03:36,495 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 06:03:35" (2/3) ... [2018-11-28 18:03:36,497 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4fdd3fdb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 06:03:36, skipping insertion in model container [2018-11-28 18:03:36,497 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 06:03:36" (3/3) ... [2018-11-28 18:03:36,499 INFO L112 eAbstractionObserver]: Analyzing ICFG float_req_bl_1052a_true-unreach-call.c [2018-11-28 18:03:36,510 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-28 18:03:36,520 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-11-28 18:03:36,539 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-11-28 18:03:36,574 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-11-28 18:03:36,575 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-28 18:03:36,575 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-28 18:03:36,575 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-28 18:03:36,576 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-28 18:03:36,576 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-28 18:03:36,576 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-28 18:03:36,576 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-28 18:03:36,576 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-28 18:03:36,597 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states. [2018-11-28 18:03:36,603 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2018-11-28 18:03:36,603 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 18:03:36,604 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-28 18:03:36,606 INFO L423 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-28 18:03:36,612 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 18:03:36,612 INFO L82 PathProgramCache]: Analyzing trace with hash -305625155, now seen corresponding path program 1 times [2018-11-28 18:03:36,614 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 18:03:36,615 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 18:03:36,667 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 18:03:36,668 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 18:03:36,668 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 18:03:36,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 18:03:36,774 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-28 18:03:36,778 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-28 18:03:36,779 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-11-28 18:03:36,784 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-11-28 18:03:36,799 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-11-28 18:03:36,800 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-11-28 18:03:36,804 INFO L87 Difference]: Start difference. First operand 42 states. Second operand 2 states. [2018-11-28 18:03:36,828 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 18:03:36,829 INFO L93 Difference]: Finished difference Result 76 states and 107 transitions. [2018-11-28 18:03:36,829 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-11-28 18:03:36,831 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 24 [2018-11-28 18:03:36,831 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 18:03:36,840 INFO L225 Difference]: With dead ends: 76 [2018-11-28 18:03:36,840 INFO L226 Difference]: Without dead ends: 38 [2018-11-28 18:03:36,844 INFO L631 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 [2018-11-28 18:03:36,860 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38 states. [2018-11-28 18:03:36,880 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38 to 38. [2018-11-28 18:03:36,881 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 38 states. [2018-11-28 18:03:36,883 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38 states to 38 states and 46 transitions. [2018-11-28 18:03:36,885 INFO L78 Accepts]: Start accepts. Automaton has 38 states and 46 transitions. Word has length 24 [2018-11-28 18:03:36,885 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 18:03:36,885 INFO L480 AbstractCegarLoop]: Abstraction has 38 states and 46 transitions. [2018-11-28 18:03:36,886 INFO L481 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-11-28 18:03:36,886 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states and 46 transitions. [2018-11-28 18:03:36,887 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2018-11-28 18:03:36,888 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 18:03:36,888 INFO L402 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] [2018-11-28 18:03:36,888 INFO L423 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-28 18:03:36,889 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 18:03:36,889 INFO L82 PathProgramCache]: Analyzing trace with hash -231212118, now seen corresponding path program 1 times [2018-11-28 18:03:36,890 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 18:03:36,890 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 18:03:36,891 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 18:03:36,892 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 18:03:36,892 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 18:03:36,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 18:03:37,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 18:03:37,045 INFO L469 BasicCegarLoop]: Counterexample might be feasible [2018-11-28 18:03:37,085 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.11 06:03:37 BoogieIcfgContainer [2018-11-28 18:03:37,086 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-11-28 18:03:37,087 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-28 18:03:37,087 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-28 18:03:37,087 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-28 18:03:37,088 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 06:03:36" (3/4) ... [2018-11-28 18:03:37,091 INFO L147 WitnessPrinter]: No result that supports witness generation found [2018-11-28 18:03:37,092 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-28 18:03:37,092 INFO L168 Benchmark]: Toolchain (without parser) took 1860.27 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 102.8 MB). Free memory was 951.3 MB in the beginning and 1.0 GB in the end (delta: -86.4 MB). Peak memory consumption was 16.4 MB. Max. memory is 11.5 GB. [2018-11-28 18:03:37,095 INFO L168 Benchmark]: CDTParser took 0.19 ms. Allocated memory is still 1.0 GB. Free memory is still 978.2 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-28 18:03:37,096 INFO L168 Benchmark]: CACSL2BoogieTranslator took 416.58 ms. Allocated memory is still 1.0 GB. Free memory was 951.3 MB in the beginning and 940.6 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2018-11-28 18:03:37,097 INFO L168 Benchmark]: Boogie Procedure Inliner took 41.14 ms. Allocated memory is still 1.0 GB. Free memory is still 940.6 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-28 18:03:37,097 INFO L168 Benchmark]: Boogie Preprocessor took 137.61 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 102.8 MB). Free memory was 940.6 MB in the beginning and 1.1 GB in the end (delta: -150.4 MB). Peak memory consumption was 18.7 MB. Max. memory is 11.5 GB. [2018-11-28 18:03:37,098 INFO L168 Benchmark]: RCFGBuilder took 651.03 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 26.0 MB). Peak memory consumption was 26.0 MB. Max. memory is 11.5 GB. [2018-11-28 18:03:37,099 INFO L168 Benchmark]: TraceAbstraction took 596.90 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 27.3 MB). Peak memory consumption was 27.3 MB. Max. memory is 11.5 GB. [2018-11-28 18:03:37,101 INFO L168 Benchmark]: Witness Printer took 5.12 ms. Allocated memory is still 1.1 GB. Free memory is still 1.0 GB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-28 18:03:37,106 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 978.2 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 416.58 ms. Allocated memory is still 1.0 GB. Free memory was 951.3 MB in the beginning and 940.6 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 41.14 ms. Allocated memory is still 1.0 GB. Free memory is still 940.6 MB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 137.61 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 102.8 MB). Free memory was 940.6 MB in the beginning and 1.1 GB in the end (delta: -150.4 MB). Peak memory consumption was 18.7 MB. Max. memory is 11.5 GB. * RCFGBuilder took 651.03 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 26.0 MB). Peak memory consumption was 26.0 MB. Max. memory is 11.5 GB. * TraceAbstraction took 596.90 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 27.3 MB). Peak memory consumption was 27.3 MB. Max. memory is 11.5 GB. * Witness Printer took 5.12 ms. Allocated memory is still 1.1 GB. Free memory is still 1.0 GB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 80]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: overapproximation of someBinaryArithmeticFLOAToperation at line 44, overapproximation of bitwiseAnd at line 64. Possible FailurePath: [L11] static const float huge_floor = 1.0e30; VAL [\old(huge_floor)=6442450950, huge_floor=1000000000000000000000000000000] [L75] float x = 1.0f / 0.0f; VAL [huge_floor=1000000000000000000000000000000] [L76] CALL, EXPR floor_float(x) VAL [\old(x)=6442450954, huge_floor=1000000000000000000000000000000] [L14] __int32_t i0, j0; [L15] __uint32_t i, ix; VAL [\old(x)=6442450954, huge_floor=1000000000000000000000000000000, x=6442450954] [L17] ieee_float_shape_type gf_u; [L18] gf_u.value = (x) [L19] EXPR gf_u.word [L19] (i0) = gf_u.word [L21] ix = (i0 & 0x7fffffff) [L22] j0 = (ix >> 23) - 0x7f VAL [\old(x)=6442450954, huge_floor=1000000000000000000000000000000, i=-18014398509481985, i0=2147483647, j0=2147483520, x=6442450954] [L23] COND FALSE !(j0 < 23) VAL [\old(x)=6442450954, huge_floor=1000000000000000000000000000000, i=-18014398509481985, i0=2147483647, j0=2147483520, x=6442450954] [L43] COND TRUE !((ix) < 0x7f800000L) [L44] return x + x; VAL [\old(x)=6442450954, huge_floor=1000000000000000000000000000000, i=-18014398509481985, i0=2147483647, j0=2147483520, x=6442450954] [L76] RET, EXPR floor_float(x) VAL [floor_float(x)=6442450946, huge_floor=1000000000000000000000000000000, x=6442450954] [L76] float res = floor_float(x); [L79] CALL, EXPR isinf_float(res) VAL [\old(x)=6442450946, huge_floor=1000000000000000000000000000000] [L58] __int32_t ix; VAL [\old(x)=6442450946, huge_floor=1000000000000000000000000000000, x=6442450946] [L60] ieee_float_shape_type gf_u; [L61] gf_u.value = (x) [L62] EXPR gf_u.word [L62] (ix) = gf_u.word [L64] ix &= 0x7fffffff [L65] return ((ix) == 0x7f800000L); VAL [\old(x)=6442450946, \result=0, huge_floor=1000000000000000000000000000000, ix=0, x=6442450946] [L79] RET, EXPR isinf_float(res) VAL [huge_floor=1000000000000000000000000000000, isinf_float(res)=0, res=6442450946, x=6442450954] [L79] COND TRUE !isinf_float(res) [L80] __VERIFIER_error() VAL [huge_floor=1000000000000000000000000000000, res=6442450946, x=6442450954] - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 42 locations, 1 error locations. UNSAFE Result, 0.5s OverallTime, 2 OverallIterations, 1 TraceHistogramMax, 0.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 50 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=42occurred 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, 50 NumberOfCodeBlocks, 50 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 23 ConstructedInterpolants, 0 QuantifiedInterpolants, 529 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces Received shutdown request... ### Bit-precise run ### This is Ultimate 0.1.24-91b1670 [2018-11-28 18:03:39,534 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-28 18:03:39,536 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-28 18:03:39,548 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-28 18:03:39,549 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-28 18:03:39,550 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-28 18:03:39,551 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-28 18:03:39,554 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-28 18:03:39,555 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-28 18:03:39,557 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-28 18:03:39,558 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-28 18:03:39,558 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-28 18:03:39,559 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-28 18:03:39,561 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-28 18:03:39,562 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-28 18:03:39,563 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-28 18:03:39,564 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-28 18:03:39,566 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-28 18:03:39,569 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-28 18:03:39,571 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-28 18:03:39,572 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-28 18:03:39,574 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-28 18:03:39,577 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-28 18:03:39,578 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-28 18:03:39,578 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-28 18:03:39,579 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-28 18:03:39,581 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-28 18:03:39,582 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-28 18:03:39,583 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-28 18:03:39,584 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-28 18:03:39,584 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-28 18:03:39,586 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-28 18:03:39,586 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-28 18:03:39,586 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-28 18:03:39,588 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-28 18:03:39,588 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-28 18:03:39,589 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2018-11-28 18:03:39,605 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-28 18:03:39,605 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-28 18:03:39,606 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-28 18:03:39,606 INFO L133 SettingsManager]: * ... calls to implemented procedures=ONLY_FOR_CONCURRENT_PROGRAMS [2018-11-28 18:03:39,607 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-11-28 18:03:39,607 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-11-28 18:03:39,607 INFO L133 SettingsManager]: * Use SBE=true [2018-11-28 18:03:39,608 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-28 18:03:39,609 INFO L133 SettingsManager]: * sizeof long=4 [2018-11-28 18:03:39,609 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-11-28 18:03:39,609 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-28 18:03:39,609 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-28 18:03:39,609 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-28 18:03:39,609 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-28 18:03:39,610 INFO L133 SettingsManager]: * Use bitvectors instead of ints=true [2018-11-28 18:03:39,610 INFO L133 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2018-11-28 18:03:39,610 INFO L133 SettingsManager]: * sizeof long double=12 [2018-11-28 18:03:39,610 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-28 18:03:39,610 INFO L133 SettingsManager]: * Use constant arrays=true [2018-11-28 18:03:39,610 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-28 18:03:39,612 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-28 18:03:39,612 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-28 18:03:39,612 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-28 18:03:39,612 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-28 18:03:39,613 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-28 18:03:39,613 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-28 18:03:39,613 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-28 18:03:39,613 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-28 18:03:39,613 INFO L133 SettingsManager]: * Trace refinement strategy=WOLF [2018-11-28 18:03:39,613 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-28 18:03:39,615 INFO L133 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2018-11-28 18:03:39,615 INFO L133 SettingsManager]: * Logic for external solver=AUFBV [2018-11-28 18:03:39,615 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 -> 269c6e32b98d41be14ec8894bc32516e2df9c183 [2018-11-28 18:03:39,672 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-28 18:03:39,695 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-28 18:03:39,702 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-28 18:03:39,705 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-28 18:03:39,705 INFO L276 PluginConnector]: CDTParser initialized [2018-11-28 18:03:39,706 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/svcomp/c/float-newlib/float_req_bl_1052a_true-unreach-call.c [2018-11-28 18:03:39,766 INFO L221 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0b586dee2/00f2742d1a184c96b5bac7fa29aa083c/FLAGb83700f98 [2018-11-28 18:03:40,265 INFO L307 CDTParser]: Found 1 translation units. [2018-11-28 18:03:40,266 INFO L161 CDTParser]: Scanning /storage/repos/svcomp/c/float-newlib/float_req_bl_1052a_true-unreach-call.c [2018-11-28 18:03:40,282 INFO L355 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0b586dee2/00f2742d1a184c96b5bac7fa29aa083c/FLAGb83700f98 [2018-11-28 18:03:40,575 INFO L363 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0b586dee2/00f2742d1a184c96b5bac7fa29aa083c [2018-11-28 18:03:40,581 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-28 18:03:40,583 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-11-28 18:03:40,584 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-28 18:03:40,584 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-28 18:03:40,589 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-28 18:03:40,590 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 06:03:40" (1/1) ... [2018-11-28 18:03:40,593 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@67508ac and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 06:03:40, skipping insertion in model container [2018-11-28 18:03:40,594 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 06:03:40" (1/1) ... [2018-11-28 18:03:40,602 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-28 18:03:40,622 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-11-28 18:03:40,815 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-11-28 18:03:40,821 INFO L191 MainTranslator]: Completed pre-run [2018-11-28 18:03:40,855 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-11-28 18:03:40,881 INFO L195 MainTranslator]: Completed translation [2018-11-28 18:03:40,882 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 06:03:40 WrapperNode [2018-11-28 18:03:40,882 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-28 18:03:40,883 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-28 18:03:40,883 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-28 18:03:40,883 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-28 18:03:40,891 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 06:03:40" (1/1) ... [2018-11-28 18:03:40,908 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 06:03:40" (1/1) ... [2018-11-28 18:03:40,915 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-28 18:03:40,915 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-28 18:03:40,916 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-28 18:03:40,916 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-28 18:03:40,923 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 06:03:40" (1/1) ... [2018-11-28 18:03:40,924 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 06:03:40" (1/1) ... [2018-11-28 18:03:40,928 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 06:03:40" (1/1) ... [2018-11-28 18:03:40,929 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 06:03:40" (1/1) ... [2018-11-28 18:03:40,943 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 06:03:40" (1/1) ... [2018-11-28 18:03:41,021 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 06:03:40" (1/1) ... [2018-11-28 18:03:41,024 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 06:03:40" (1/1) ... [2018-11-28 18:03:41,028 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-28 18:03:41,029 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-28 18:03:41,029 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-28 18:03:41,029 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-28 18:03:41,030 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 06:03:40" (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 [2018-11-28 18:03:41,088 INFO L130 BoogieDeclarations]: Found specification of procedure isinf_float [2018-11-28 18:03:41,088 INFO L138 BoogieDeclarations]: Found implementation of procedure isinf_float [2018-11-28 18:03:41,088 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-28 18:03:41,088 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-28 18:03:41,089 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-11-28 18:03:41,089 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2018-11-28 18:03:41,089 INFO L130 BoogieDeclarations]: Found specification of procedure floor_float [2018-11-28 18:03:41,089 INFO L138 BoogieDeclarations]: Found implementation of procedure floor_float [2018-11-28 18:03:41,089 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-28 18:03:41,089 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-28 18:03:41,090 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4 [2018-11-28 18:03:41,090 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-28 18:03:41,090 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-28 18:03:41,090 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4 [2018-11-28 18:03:41,090 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2018-11-28 18:03:41,090 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-11-28 18:03:41,253 WARN L317 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 18:03:41,648 WARN L317 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 18:03:41,976 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-28 18:03:41,977 INFO L280 CfgBuilder]: Removed 6 assue(true) statements. [2018-11-28 18:03:41,977 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 06:03:41 BoogieIcfgContainer [2018-11-28 18:03:41,977 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-28 18:03:41,979 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-28 18:03:41,979 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-28 18:03:41,983 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-28 18:03:41,983 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.11 06:03:40" (1/3) ... [2018-11-28 18:03:41,984 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4fcc74b7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 06:03:41, skipping insertion in model container [2018-11-28 18:03:41,984 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 06:03:40" (2/3) ... [2018-11-28 18:03:41,985 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4fcc74b7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 06:03:41, skipping insertion in model container [2018-11-28 18:03:41,985 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 06:03:41" (3/3) ... [2018-11-28 18:03:41,987 INFO L112 eAbstractionObserver]: Analyzing ICFG float_req_bl_1052a_true-unreach-call.c [2018-11-28 18:03:41,997 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-28 18:03:42,004 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-11-28 18:03:42,022 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-11-28 18:03:42,058 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-11-28 18:03:42,059 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-28 18:03:42,059 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-28 18:03:42,059 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-28 18:03:42,059 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-28 18:03:42,060 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-28 18:03:42,060 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-28 18:03:42,060 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-28 18:03:42,060 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-28 18:03:42,077 INFO L276 IsEmpty]: Start isEmpty. Operand 41 states. [2018-11-28 18:03:42,083 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2018-11-28 18:03:42,084 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 18:03:42,085 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-28 18:03:42,087 INFO L423 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-28 18:03:42,093 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 18:03:42,093 INFO L82 PathProgramCache]: Analyzing trace with hash -1515461369, now seen corresponding path program 1 times [2018-11-28 18:03:42,097 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-11-28 18:03:42,097 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 [2018-11-28 18:03:42,105 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 18:03:42,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 18:03:42,192 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-28 18:03:42,212 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-28 18:03:42,213 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-28 18:03:42,228 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-28 18:03:42,229 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-11-28 18:03:42,232 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-11-28 18:03:42,244 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-11-28 18:03:42,245 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-11-28 18:03:42,248 INFO L87 Difference]: Start difference. First operand 41 states. Second operand 2 states. [2018-11-28 18:03:42,272 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 18:03:42,272 INFO L93 Difference]: Finished difference Result 74 states and 105 transitions. [2018-11-28 18:03:42,273 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-11-28 18:03:42,274 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 23 [2018-11-28 18:03:42,274 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 18:03:42,286 INFO L225 Difference]: With dead ends: 74 [2018-11-28 18:03:42,286 INFO L226 Difference]: Without dead ends: 37 [2018-11-28 18:03:42,290 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-11-28 18:03:42,310 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37 states. [2018-11-28 18:03:42,330 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37 to 37. [2018-11-28 18:03:42,332 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 37 states. [2018-11-28 18:03:42,333 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 37 states and 45 transitions. [2018-11-28 18:03:42,335 INFO L78 Accepts]: Start accepts. Automaton has 37 states and 45 transitions. Word has length 23 [2018-11-28 18:03:42,336 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 18:03:42,336 INFO L480 AbstractCegarLoop]: Abstraction has 37 states and 45 transitions. [2018-11-28 18:03:42,336 INFO L481 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-11-28 18:03:42,337 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states and 45 transitions. [2018-11-28 18:03:42,338 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2018-11-28 18:03:42,338 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 18:03:42,338 INFO L402 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] [2018-11-28 18:03:42,338 INFO L423 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-28 18:03:42,340 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 18:03:42,340 INFO L82 PathProgramCache]: Analyzing trace with hash -521696202, now seen corresponding path program 1 times [2018-11-28 18:03:42,341 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-11-28 18:03:42,341 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 [2018-11-28 18:03:42,350 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 18:03:42,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 18:03:42,455 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-28 18:03:42,884 WARN L180 SmtUtils]: Spent 119.00 ms on a formula simplification that was a NOOP. DAG size: 5 [2018-11-28 18:03:43,651 WARN L180 SmtUtils]: Spent 195.00 ms on a formula simplification that was a NOOP. DAG size: 34 [2018-11-28 18:03:43,884 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-28 18:03:43,884 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-28 18:03:43,897 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-28 18:03:43,898 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2018-11-28 18:03:43,899 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2018-11-28 18:03:43,901 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2018-11-28 18:03:43,901 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=91, Unknown=0, NotChecked=0, Total=110 [2018-11-28 18:03:43,901 INFO L87 Difference]: Start difference. First operand 37 states and 45 transitions. Second operand 11 states. [2018-11-28 18:03:44,601 WARN L180 SmtUtils]: Spent 153.00 ms on a formula simplification that was a NOOP. DAG size: 8 [2018-11-28 18:03:46,828 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 18:03:46,828 INFO L93 Difference]: Finished difference Result 46 states and 54 transitions. [2018-11-28 18:03:46,829 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2018-11-28 18:03:46,830 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 25 [2018-11-28 18:03:46,830 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 18:03:46,833 INFO L225 Difference]: With dead ends: 46 [2018-11-28 18:03:46,834 INFO L226 Difference]: Without dead ends: 39 [2018-11-28 18:03:46,835 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 2.1s TimeCoverageRelationStatistics Valid=45, Invalid=227, Unknown=0, NotChecked=0, Total=272 [2018-11-28 18:03:46,836 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39 states. [2018-11-28 18:03:46,845 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39 to 37. [2018-11-28 18:03:46,846 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 37 states. [2018-11-28 18:03:46,847 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 37 states and 44 transitions. [2018-11-28 18:03:46,847 INFO L78 Accepts]: Start accepts. Automaton has 37 states and 44 transitions. Word has length 25 [2018-11-28 18:03:46,847 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 18:03:46,847 INFO L480 AbstractCegarLoop]: Abstraction has 37 states and 44 transitions. [2018-11-28 18:03:46,848 INFO L481 AbstractCegarLoop]: Interpolant automaton has 11 states. [2018-11-28 18:03:46,849 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states and 44 transitions. [2018-11-28 18:03:46,850 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2018-11-28 18:03:46,850 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 18:03:46,850 INFO L402 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] [2018-11-28 18:03:46,851 INFO L423 AbstractCegarLoop]: === Iteration 3 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-28 18:03:46,851 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 18:03:46,851 INFO L82 PathProgramCache]: Analyzing trace with hash -815099209, now seen corresponding path program 1 times [2018-11-28 18:03:46,852 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-11-28 18:03:46,852 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 [2018-11-28 18:03:46,861 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 18:03:46,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 18:03:46,911 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-28 18:03:47,030 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-28 18:03:47,030 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-28 18:03:47,049 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-28 18:03:47,050 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2018-11-28 18:03:47,050 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-11-28 18:03:47,050 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-11-28 18:03:47,050 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2018-11-28 18:03:47,053 INFO L87 Difference]: Start difference. First operand 37 states and 44 transitions. Second operand 7 states. [2018-11-28 18:03:48,261 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 18:03:48,261 INFO L93 Difference]: Finished difference Result 59 states and 65 transitions. [2018-11-28 18:03:48,263 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2018-11-28 18:03:48,264 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 25 [2018-11-28 18:03:48,264 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 18:03:48,265 INFO L225 Difference]: With dead ends: 59 [2018-11-28 18:03:48,265 INFO L226 Difference]: Without dead ends: 42 [2018-11-28 18:03:48,267 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2018-11-28 18:03:48,267 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42 states. [2018-11-28 18:03:48,272 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42 to 36. [2018-11-28 18:03:48,273 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 36 states. [2018-11-28 18:03:48,274 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 36 states and 41 transitions. [2018-11-28 18:03:48,274 INFO L78 Accepts]: Start accepts. Automaton has 36 states and 41 transitions. Word has length 25 [2018-11-28 18:03:48,274 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 18:03:48,275 INFO L480 AbstractCegarLoop]: Abstraction has 36 states and 41 transitions. [2018-11-28 18:03:48,275 INFO L481 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-11-28 18:03:48,275 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 41 transitions. [2018-11-28 18:03:48,276 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2018-11-28 18:03:48,276 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 18:03:48,276 INFO L402 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] [2018-11-28 18:03:48,277 INFO L423 AbstractCegarLoop]: === Iteration 4 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-28 18:03:48,277 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 18:03:48,277 INFO L82 PathProgramCache]: Analyzing trace with hash 1280692241, now seen corresponding path program 1 times [2018-11-28 18:03:48,278 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-11-28 18:03:48,278 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 [2018-11-28 18:03:48,283 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 18:03:48,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 18:03:48,337 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-28 18:03:48,470 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-28 18:03:48,470 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-28 18:03:48,483 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-28 18:03:48,483 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2018-11-28 18:03:48,484 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-11-28 18:03:48,484 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-11-28 18:03:48,484 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2018-11-28 18:03:48,485 INFO L87 Difference]: Start difference. First operand 36 states and 41 transitions. Second operand 7 states. [2018-11-28 18:03:49,481 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 18:03:49,482 INFO L93 Difference]: Finished difference Result 42 states and 47 transitions. [2018-11-28 18:03:49,485 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2018-11-28 18:03:49,485 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 26 [2018-11-28 18:03:49,485 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 18:03:49,486 INFO L225 Difference]: With dead ends: 42 [2018-11-28 18:03:49,486 INFO L226 Difference]: Without dead ends: 0 [2018-11-28 18:03:49,486 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=41, Invalid=91, Unknown=0, NotChecked=0, Total=132 [2018-11-28 18:03:49,487 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-11-28 18:03:49,487 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-11-28 18:03:49,487 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-11-28 18:03:49,487 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-11-28 18:03:49,487 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 26 [2018-11-28 18:03:49,488 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 18:03:49,488 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-11-28 18:03:49,488 INFO L481 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-11-28 18:03:49,488 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-11-28 18:03:49,488 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-11-28 18:03:49,492 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2018-11-28 18:03:49,720 INFO L448 ceAbstractionStarter]: For program point L59-1(lines 59 63) no Hoare annotation was computed. [2018-11-28 18:03:49,720 INFO L444 ceAbstractionStarter]: At program point L59-2(lines 59 63) the Hoare annotation is: (= |isinf_float_#in~x| isinf_float_~x) [2018-11-28 18:03:49,720 INFO L448 ceAbstractionStarter]: For program point L59-3(lines 59 63) no Hoare annotation was computed. [2018-11-28 18:03:49,720 INFO L451 ceAbstractionStarter]: At program point isinf_floatENTRY(lines 57 66) the Hoare annotation is: true [2018-11-28 18:03:49,720 INFO L448 ceAbstractionStarter]: For program point isinf_floatEXIT(lines 57 66) no Hoare annotation was computed. [2018-11-28 18:03:49,720 INFO L448 ceAbstractionStarter]: For program point isinf_floatFINAL(lines 57 66) no Hoare annotation was computed. [2018-11-28 18:03:49,721 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2018-11-28 18:03:49,721 INFO L451 ceAbstractionStarter]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: true [2018-11-28 18:03:49,721 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2018-11-28 18:03:49,721 INFO L448 ceAbstractionStarter]: For program point L23(lines 23 47) no Hoare annotation was computed. [2018-11-28 18:03:49,721 INFO L448 ceAbstractionStarter]: For program point L48(lines 48 52) no Hoare annotation was computed. [2018-11-28 18:03:49,721 INFO L448 ceAbstractionStarter]: For program point L48-1(lines 13 54) no Hoare annotation was computed. [2018-11-28 18:03:49,721 INFO L448 ceAbstractionStarter]: For program point L48-2(lines 48 52) no Hoare annotation was computed. [2018-11-28 18:03:49,722 INFO L448 ceAbstractionStarter]: For program point L36(lines 36 40) no Hoare annotation was computed. [2018-11-28 18:03:49,722 INFO L448 ceAbstractionStarter]: For program point L28(lines 28 30) no Hoare annotation was computed. [2018-11-28 18:03:49,722 INFO L448 ceAbstractionStarter]: For program point L24(lines 24 41) no Hoare annotation was computed. [2018-11-28 18:03:49,722 INFO L448 ceAbstractionStarter]: For program point L16-1(lines 16 20) no Hoare annotation was computed. [2018-11-28 18:03:49,722 INFO L444 ceAbstractionStarter]: At program point L16-2(lines 16 20) the Hoare annotation is: (= |floor_float_#in~x| floor_float_~x) [2018-11-28 18:03:49,722 INFO L448 ceAbstractionStarter]: For program point L16-3(lines 16 20) no Hoare annotation was computed. [2018-11-28 18:03:49,722 INFO L448 ceAbstractionStarter]: For program point L37(lines 37 38) no Hoare annotation was computed. [2018-11-28 18:03:49,723 INFO L448 ceAbstractionStarter]: For program point L37-2(lines 37 38) no Hoare annotation was computed. [2018-11-28 18:03:49,723 INFO L448 ceAbstractionStarter]: For program point floor_floatEXIT(lines 13 54) no Hoare annotation was computed. [2018-11-28 18:03:49,723 INFO L448 ceAbstractionStarter]: For program point L25(lines 25 31) no Hoare annotation was computed. [2018-11-28 18:03:49,723 INFO L448 ceAbstractionStarter]: For program point L34(lines 34 35) no Hoare annotation was computed. [2018-11-28 18:03:49,723 INFO L448 ceAbstractionStarter]: For program point floor_floatFINAL(lines 13 54) no Hoare annotation was computed. [2018-11-28 18:03:49,723 INFO L448 ceAbstractionStarter]: For program point L26(lines 26 30) no Hoare annotation was computed. [2018-11-28 18:03:49,723 INFO L451 ceAbstractionStarter]: At program point floor_floatENTRY(lines 13 54) the Hoare annotation is: true [2018-11-28 18:03:49,724 INFO L448 ceAbstractionStarter]: For program point L43(lines 43 46) no Hoare annotation was computed. [2018-11-28 18:03:49,724 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2018-11-28 18:03:49,724 INFO L451 ceAbstractionStarter]: At program point L-1(line -1) the Hoare annotation is: true [2018-11-28 18:03:49,724 INFO L451 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2018-11-28 18:03:49,724 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2018-11-28 18:03:49,724 INFO L448 ceAbstractionStarter]: For program point L80(line 80) no Hoare annotation was computed. [2018-11-28 18:03:49,724 INFO L444 ceAbstractionStarter]: At program point L79(line 79) the Hoare annotation is: (let ((.cse0 (fp.div roundNearestTiesToEven ((_ to_fp 8 24) roundNearestTiesToEven 1.0) (_ +zero 8 24)))) (and (= main_~res~0 (fp.add roundNearestTiesToEven .cse0 .cse0)) (= main_~x~0 .cse0))) [2018-11-28 18:03:49,725 INFO L448 ceAbstractionStarter]: For program point mainErr0ASSERT_VIOLATIONERROR_FUNCTION(line 80) no Hoare annotation was computed. [2018-11-28 18:03:49,725 INFO L448 ceAbstractionStarter]: For program point L79-1(lines 79 82) no Hoare annotation was computed. [2018-11-28 18:03:49,725 INFO L451 ceAbstractionStarter]: At program point mainENTRY(lines 68 85) the Hoare annotation is: true [2018-11-28 18:03:49,725 INFO L448 ceAbstractionStarter]: For program point mainFINAL(lines 68 85) no Hoare annotation was computed. [2018-11-28 18:03:49,725 INFO L444 ceAbstractionStarter]: At program point L76(line 76) the Hoare annotation is: (= main_~x~0 (fp.div roundNearestTiesToEven ((_ to_fp 8 24) roundNearestTiesToEven 1.0) (_ +zero 8 24))) [2018-11-28 18:03:49,726 INFO L448 ceAbstractionStarter]: For program point L76-1(line 76) no Hoare annotation was computed. [2018-11-28 18:03:49,726 INFO L448 ceAbstractionStarter]: For program point mainEXIT(lines 68 85) no Hoare annotation was computed. [2018-11-28 18:03:49,739 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.11 06:03:49 BoogieIcfgContainer [2018-11-28 18:03:49,739 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-11-28 18:03:49,740 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-28 18:03:49,740 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-28 18:03:49,740 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-28 18:03:49,742 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 06:03:41" (3/4) ... [2018-11-28 18:03:49,747 INFO L144 WitnessPrinter]: Generating witness for correct program [2018-11-28 18:03:49,755 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure isinf_float [2018-11-28 18:03:49,755 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure ULTIMATE.init [2018-11-28 18:03:49,755 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure floor_float [2018-11-28 18:03:49,756 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure main [2018-11-28 18:03:49,763 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 20 nodes and edges [2018-11-28 18:03:49,764 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 8 nodes and edges [2018-11-28 18:03:49,764 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2018-11-28 18:03:49,797 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: \old(x) == x [2018-11-28 18:03:49,798 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: \old(x) == x [2018-11-28 18:03:49,832 INFO L145 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2018-11-28 18:03:49,833 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-28 18:03:49,834 INFO L168 Benchmark]: Toolchain (without parser) took 9252.14 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 137.4 MB). Free memory was 946.0 MB in the beginning and 937.6 MB in the end (delta: 8.3 MB). Peak memory consumption was 145.7 MB. Max. memory is 11.5 GB. [2018-11-28 18:03:49,835 INFO L168 Benchmark]: CDTParser took 0.22 ms. Allocated memory is still 1.0 GB. Free memory is still 972.8 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-28 18:03:49,836 INFO L168 Benchmark]: CACSL2BoogieTranslator took 298.20 ms. Allocated memory is still 1.0 GB. Free memory was 946.0 MB in the beginning and 935.2 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2018-11-28 18:03:49,836 INFO L168 Benchmark]: Boogie Procedure Inliner took 32.51 ms. Allocated memory is still 1.0 GB. Free memory was 935.2 MB in the beginning and 929.9 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. [2018-11-28 18:03:49,837 INFO L168 Benchmark]: Boogie Preprocessor took 112.85 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 137.4 MB). Free memory was 929.9 MB in the beginning and 1.1 GB in the end (delta: -195.8 MB). Peak memory consumption was 13.6 MB. Max. memory is 11.5 GB. [2018-11-28 18:03:49,839 INFO L168 Benchmark]: RCFGBuilder took 948.78 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: 19.6 MB). Peak memory consumption was 19.6 MB. Max. memory is 11.5 GB. [2018-11-28 18:03:49,840 INFO L168 Benchmark]: TraceAbstraction took 7760.52 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 937.6 MB in the end (delta: 168.4 MB). Peak memory consumption was 168.4 MB. Max. memory is 11.5 GB. [2018-11-28 18:03:49,840 INFO L168 Benchmark]: Witness Printer took 93.28 ms. Allocated memory is still 1.2 GB. Free memory is still 937.6 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-28 18:03:49,846 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22 ms. Allocated memory is still 1.0 GB. Free memory is still 972.8 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 298.20 ms. Allocated memory is still 1.0 GB. Free memory was 946.0 MB in the beginning and 935.2 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 32.51 ms. Allocated memory is still 1.0 GB. Free memory was 935.2 MB in the beginning and 929.9 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 112.85 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 137.4 MB). Free memory was 929.9 MB in the beginning and 1.1 GB in the end (delta: -195.8 MB). Peak memory consumption was 13.6 MB. Max. memory is 11.5 GB. * RCFGBuilder took 948.78 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: 19.6 MB). Peak memory consumption was 19.6 MB. Max. memory is 11.5 GB. * TraceAbstraction took 7760.52 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 937.6 MB in the end (delta: 168.4 MB). Peak memory consumption was 168.4 MB. Max. memory is 11.5 GB. * Witness Printer took 93.28 ms. Allocated memory is still 1.2 GB. Free memory is still 937.6 MB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 80]: 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: 59]: Loop Invariant Derived loop invariant: \old(x) == x - InvariantResult [Line: 16]: Loop Invariant Derived loop invariant: \old(x) == x - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 41 locations, 1 error locations. SAFE Result, 7.6s OverallTime, 4 OverallIterations, 1 TraceHistogramMax, 5.2s AutomataDifference, 0.0s DeadEndRemovalTime, 0.2s HoareAnnotationTime, HoareTripleCheckerStatistics: 121 SDtfs, 163 SDslu, 396 SDs, 0 SdLazy, 264 SolverSat, 25 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 3.4s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 110 GetRequests, 76 SyntacticMatches, 0 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 2.8s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=41occurred 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, 8 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 10 LocationsWithAnnotation, 16 PreInvPairs, 19 NumberOfFragments, 45 HoareAnnotationTreeSize, 16 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 10 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.1s HoareSimplificationTimeInter, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 1.7s InterpolantComputationTime, 99 NumberOfCodeBlocks, 99 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 95 ConstructedInterpolants, 11 QuantifiedInterpolants, 11309 SizeOfPredicates, 14 NumberOfNonLiveVariables, 284 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...