/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/Ultimate.py --spec ../../../trunk/examples/svcomp/ReachSafety.prp --file ../../../trunk/examples/svcomp/float-newlib/double_req_bl_1012a_true-unreach-call.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 40ef5092 Calling Ultimate with: java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx12G -Xms1G -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../../../trunk/examples/svcomp/float-newlib/double_req_bl_1012a_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 b885e206564f4e9bb7a421e0f9e82e87cbb5e4d9 .................................................................................................................................................................................................................................................................................................................................. Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis Calling Ultimate with: java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx12G -Xms1G -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../../../trunk/examples/svcomp/float-newlib/double_req_bl_1012a_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 b885e206564f4e9bb7a421e0f9e82e87cbb5e4d9 .................................................................................................................................................................................................................................................................................................................................................................................................................................................................. Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.23-40ef509 [2018-09-20 15:01:38,174 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-09-20 15:01:38,178 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-09-20 15:01:38,200 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-09-20 15:01:38,201 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-09-20 15:01:38,203 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-09-20 15:01:38,205 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-09-20 15:01:38,207 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-09-20 15:01:38,209 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-09-20 15:01:38,212 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-09-20 15:01:38,215 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-09-20 15:01:38,217 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-09-20 15:01:38,218 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-09-20 15:01:38,222 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-09-20 15:01:38,229 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-09-20 15:01:38,230 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-09-20 15:01:38,235 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-09-20 15:01:38,242 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-09-20 15:01:38,244 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-09-20 15:01:38,249 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-09-20 15:01:38,253 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-09-20 15:01:38,256 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-09-20 15:01:38,259 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-09-20 15:01:38,261 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-09-20 15:01:38,263 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-09-20 15:01:38,264 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-09-20 15:01:38,265 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-09-20 15:01:38,266 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-09-20 15:01:38,268 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-09-20 15:01:38,270 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-09-20 15:01:38,273 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-09-20 15:01:38,275 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-09-20 15:01:38,275 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-09-20 15:01:38,275 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-09-20 15:01:38,279 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-09-20 15:01:38,282 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-09-20 15:01:38,283 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2018-09-20 15:01:38,302 INFO L110 SettingsManager]: Loading preferences was successful [2018-09-20 15:01:38,302 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-09-20 15:01:38,303 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-09-20 15:01:38,304 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-09-20 15:01:38,305 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-09-20 15:01:38,305 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-09-20 15:01:38,305 INFO L133 SettingsManager]: * Use SBE=true [2018-09-20 15:01:38,305 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-09-20 15:01:38,306 INFO L133 SettingsManager]: * sizeof long=4 [2018-09-20 15:01:38,306 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-09-20 15:01:38,306 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-09-20 15:01:38,306 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-09-20 15:01:38,306 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-09-20 15:01:38,306 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-09-20 15:01:38,307 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-09-20 15:01:38,307 INFO L133 SettingsManager]: * sizeof long double=12 [2018-09-20 15:01:38,307 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-09-20 15:01:38,307 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-09-20 15:01:38,307 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-09-20 15:01:38,308 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-09-20 15:01:38,308 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-09-20 15:01:38,308 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-09-20 15:01:38,308 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-09-20 15:01:38,308 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-09-20 15:01:38,309 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-09-20 15:01:38,309 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-09-20 15:01:38,309 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-09-20 15:01:38,309 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-09-20 15:01:38,309 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-09-20 15:01:38,310 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 -> b885e206564f4e9bb7a421e0f9e82e87cbb5e4d9 [2018-09-20 15:01:38,399 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-09-20 15:01:38,427 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-09-20 15:01:38,435 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-09-20 15:01:38,438 INFO L271 PluginConnector]: Initializing CDTParser... [2018-09-20 15:01:38,440 INFO L276 PluginConnector]: CDTParser initialized [2018-09-20 15:01:38,442 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/float-newlib/double_req_bl_1012a_true-unreach-call.c [2018-09-20 15:01:38,847 INFO L221 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/90cff4bf8/0ff7fec4d36746c798a24eff79de030a/FLAG81ea4c373 [2018-09-20 15:01:39,131 INFO L277 CDTParser]: Found 1 translation units. [2018-09-20 15:01:39,132 INFO L159 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/float-newlib/double_req_bl_1012a_true-unreach-call.c [2018-09-20 15:01:39,145 INFO L325 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/90cff4bf8/0ff7fec4d36746c798a24eff79de030a/FLAG81ea4c373 [2018-09-20 15:01:39,167 INFO L333 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/90cff4bf8/0ff7fec4d36746c798a24eff79de030a [2018-09-20 15:01:39,173 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-09-20 15:01:39,177 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-09-20 15:01:39,179 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-09-20 15:01:39,179 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-09-20 15:01:39,188 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-09-20 15:01:39,189 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.09 03:01:39" (1/1) ... [2018-09-20 15:01:39,194 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4b4eec9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 03:01:39, skipping insertion in model container [2018-09-20 15:01:39,194 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.09 03:01:39" (1/1) ... [2018-09-20 15:01:39,211 INFO L160 ieTranslatorObserver]: Starting translation in SV-COMP mode [2018-09-20 15:01:39,487 INFO L170 PostProcessor]: Settings: Checked method=main [2018-09-20 15:01:39,512 INFO L424 MainDispatcher]: Starting main dispatcher in SV-COMP mode [2018-09-20 15:01:39,536 INFO L170 PostProcessor]: Settings: Checked method=main [2018-09-20 15:01:39,576 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 03:01:39 WrapperNode [2018-09-20 15:01:39,576 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-09-20 15:01:39,577 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-09-20 15:01:39,577 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-09-20 15:01:39,578 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-09-20 15:01:39,597 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 03:01:39" (1/1) ... [2018-09-20 15:01:39,597 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 03:01:39" (1/1) ... [2018-09-20 15:01:39,612 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 03:01:39" (1/1) ... [2018-09-20 15:01:39,613 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 03:01:39" (1/1) ... [2018-09-20 15:01:39,624 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 03:01:39" (1/1) ... [2018-09-20 15:01:39,632 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 03:01:39" (1/1) ... [2018-09-20 15:01:39,635 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 03:01:39" (1/1) ... [2018-09-20 15:01:39,639 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-09-20 15:01:39,640 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-09-20 15:01:39,640 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-09-20 15:01:39,640 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-09-20 15:01:39,642 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 03:01:39" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-09-20 15:01:39,819 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-09-20 15:01:39,820 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-09-20 15:01:39,820 INFO L138 BoogieDeclarations]: Found implementation of procedure isnan_double [2018-09-20 15:01:39,820 INFO L138 BoogieDeclarations]: Found implementation of procedure __signbit_double [2018-09-20 15:01:39,820 INFO L138 BoogieDeclarations]: Found implementation of procedure isinf_double [2018-09-20 15:01:39,821 INFO L138 BoogieDeclarations]: Found implementation of procedure fabs_double [2018-09-20 15:01:39,821 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-09-20 15:01:39,821 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2018-09-20 15:01:39,824 INFO L130 BoogieDeclarations]: Found specification of procedure isnan_double [2018-09-20 15:01:39,824 INFO L130 BoogieDeclarations]: Found specification of procedure __signbit_double [2018-09-20 15:01:39,825 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-09-20 15:01:39,825 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2018-09-20 15:01:39,825 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2018-09-20 15:01:39,825 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-09-20 15:01:39,825 INFO L130 BoogieDeclarations]: Found specification of procedure isinf_double [2018-09-20 15:01:39,825 INFO L130 BoogieDeclarations]: Found specification of procedure fabs_double [2018-09-20 15:01:39,826 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2018-09-20 15:01:39,826 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2018-09-20 15:01:39,826 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-09-20 15:01:39,826 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-09-20 15:01:39,826 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-09-20 15:01:39,829 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~real [2018-09-20 15:01:39,832 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2018-09-20 15:01:40,534 INFO L365 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-09-20 15:01:40,536 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.09 03:01:40 BoogieIcfgContainer [2018-09-20 15:01:40,536 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-09-20 15:01:40,537 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-09-20 15:01:40,538 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-09-20 15:01:40,546 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-09-20 15:01:40,547 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.09 03:01:39" (1/3) ... [2018-09-20 15:01:40,548 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5e6987d5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.09 03:01:40, skipping insertion in model container [2018-09-20 15:01:40,549 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 03:01:39" (2/3) ... [2018-09-20 15:01:40,550 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5e6987d5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.09 03:01:40, skipping insertion in model container [2018-09-20 15:01:40,551 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.09 03:01:40" (3/3) ... [2018-09-20 15:01:40,553 INFO L112 eAbstractionObserver]: Analyzing ICFG double_req_bl_1012a_true-unreach-call.c [2018-09-20 15:01:40,568 INFO L137 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-09-20 15:01:40,584 INFO L149 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-09-20 15:01:40,638 INFO L130 ementStrategyFactory]: Using default assertion order modulation [2018-09-20 15:01:40,640 INFO L381 AbstractCegarLoop]: Interprodecural is true [2018-09-20 15:01:40,640 INFO L382 AbstractCegarLoop]: Hoare is true [2018-09-20 15:01:40,640 INFO L383 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-09-20 15:01:40,640 INFO L384 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-09-20 15:01:40,640 INFO L385 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-09-20 15:01:40,641 INFO L386 AbstractCegarLoop]: Difference is false [2018-09-20 15:01:40,641 INFO L387 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-09-20 15:01:40,641 INFO L392 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-09-20 15:01:40,683 INFO L276 IsEmpty]: Start isEmpty. Operand 61 states. [2018-09-20 15:01:40,692 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2018-09-20 15:01:40,693 INFO L368 BasicCegarLoop]: Found error trace [2018-09-20 15:01:40,694 INFO L376 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-20 15:01:40,697 INFO L423 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-20 15:01:40,704 INFO L82 PathProgramCache]: Analyzing trace with hash -786783087, now seen corresponding path program 1 times [2018-09-20 15:01:40,707 INFO L227 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-09-20 15:01:40,708 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-09-20 15:01:40,765 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-20 15:01:40,765 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-20 15:01:40,766 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-20 15:01:40,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-20 15:01:40,901 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-20 15:01:40,903 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-20 15:01:40,904 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-09-20 15:01:40,908 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-09-20 15:01:40,922 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-09-20 15:01:40,923 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-09-20 15:01:40,926 INFO L87 Difference]: Start difference. First operand 61 states. Second operand 2 states. [2018-09-20 15:01:40,954 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-20 15:01:40,954 INFO L93 Difference]: Finished difference Result 114 states and 127 transitions. [2018-09-20 15:01:40,954 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-09-20 15:01:40,955 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 23 [2018-09-20 15:01:40,956 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-20 15:01:40,965 INFO L225 Difference]: With dead ends: 114 [2018-09-20 15:01:40,965 INFO L226 Difference]: Without dead ends: 57 [2018-09-20 15:01:40,970 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-09-20 15:01:40,986 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 57 states. [2018-09-20 15:01:41,012 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 57 to 57. [2018-09-20 15:01:41,014 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 57 states. [2018-09-20 15:01:41,017 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 57 states to 57 states and 56 transitions. [2018-09-20 15:01:41,020 INFO L78 Accepts]: Start accepts. Automaton has 57 states and 56 transitions. Word has length 23 [2018-09-20 15:01:41,020 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-20 15:01:41,020 INFO L480 AbstractCegarLoop]: Abstraction has 57 states and 56 transitions. [2018-09-20 15:01:41,021 INFO L481 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-09-20 15:01:41,021 INFO L276 IsEmpty]: Start isEmpty. Operand 57 states and 56 transitions. [2018-09-20 15:01:41,024 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2018-09-20 15:01:41,025 INFO L368 BasicCegarLoop]: Found error trace [2018-09-20 15:01:41,025 INFO L376 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-20 15:01:41,026 INFO L423 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-20 15:01:41,026 INFO L82 PathProgramCache]: Analyzing trace with hash -1271288650, now seen corresponding path program 1 times [2018-09-20 15:01:41,026 INFO L227 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-09-20 15:01:41,026 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-09-20 15:01:41,029 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-20 15:01:41,029 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-20 15:01:41,029 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-20 15:01:41,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-09-20 15:01:41,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-09-20 15:01:41,453 INFO L443 BasicCegarLoop]: Counterexample might be feasible [2018-09-20 15:01:41,526 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.09 03:01:41 BoogieIcfgContainer [2018-09-20 15:01:41,526 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-09-20 15:01:41,527 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-09-20 15:01:41,527 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-09-20 15:01:41,527 INFO L276 PluginConnector]: Witness Printer initialized [2018-09-20 15:01:41,528 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.09 03:01:40" (3/4) ... [2018-09-20 15:01:41,534 INFO L147 WitnessPrinter]: No result that supports witness generation found [2018-09-20 15:01:41,534 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-09-20 15:01:41,536 INFO L168 Benchmark]: Toolchain (without parser) took 2362.02 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 141.0 MB). Free memory was 943.8 MB in the beginning and 1.1 GB in the end (delta: -130.6 MB). Peak memory consumption was 10.5 MB. Max. memory is 11.5 GB. [2018-09-20 15:01:41,538 INFO L168 Benchmark]: CDTParser took 0.46 ms. Allocated memory is still 1.0 GB. Free memory is still 973.3 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-09-20 15:01:41,539 INFO L168 Benchmark]: CACSL2BoogieTranslator took 398.15 ms. Allocated memory is still 1.0 GB. Free memory was 943.8 MB in the beginning and 933.1 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2018-09-20 15:01:41,540 INFO L168 Benchmark]: Boogie Preprocessor took 62.23 ms. Allocated memory is still 1.0 GB. Free memory was 933.1 MB in the beginning and 927.7 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. [2018-09-20 15:01:41,541 INFO L168 Benchmark]: RCFGBuilder took 896.00 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 141.0 MB). Free memory was 927.7 MB in the beginning and 1.1 GB in the end (delta: -181.1 MB). Peak memory consumption was 21.9 MB. Max. memory is 11.5 GB. [2018-09-20 15:01:41,542 INFO L168 Benchmark]: TraceAbstraction took 989.08 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: 34.4 MB). Peak memory consumption was 34.4 MB. Max. memory is 11.5 GB. [2018-09-20 15:01:41,544 INFO L168 Benchmark]: Witness Printer took 7.62 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2018-09-20 15:01:41,550 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.46 ms. Allocated memory is still 1.0 GB. Free memory is still 973.3 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 398.15 ms. Allocated memory is still 1.0 GB. Free memory was 943.8 MB in the beginning and 933.1 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 62.23 ms. Allocated memory is still 1.0 GB. Free memory was 933.1 MB in the beginning and 927.7 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. * RCFGBuilder took 896.00 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 141.0 MB). Free memory was 927.7 MB in the beginning and 1.1 GB in the end (delta: -181.1 MB). Peak memory consumption was 21.9 MB. Max. memory is 11.5 GB. * TraceAbstraction took 989.08 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: 34.4 MB). Peak memory consumption was 34.4 MB. Max. memory is 11.5 GB. * Witness Printer took 7.62 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 73]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: overapproximation of bitwiseOr at line 39, overapproximation of someBinaryArithmeticDOUBLEoperation at line 68, overapproximation of bitwiseAnd at line 38. Possible FailurePath: [L68] double x = 1.0 / 0.0; [L69] CALL, EXPR fabs_double(x) VAL [\old(x)=10737418244] [L45] __uint32_t high; VAL [\old(x)=10737418244, x=10737418244] [L47] FCALL ieee_double_shape_type gh_u; VAL [\old(x)=10737418244, gh_u={10737418241:0}, x=10737418244] [L48] FCALL gh_u.value = (x) VAL [\old(x)=10737418244, gh_u={10737418241:0}, x=10737418244] [L49] EXPR, FCALL gh_u.parts.msw VAL [\old(x)=10737418244, gh_u={10737418241:0}, gh_u.parts.msw=6442450944, x=10737418244] [L49] (high) = gh_u.parts.msw VAL [\old(x)=10737418244, gh_u={10737418241:0}, gh_u.parts.msw=6442450944, high=2147483648, x=10737418244] [L49] FCALL (high) = gh_u.parts.msw VAL [(high) = gh_u.parts.msw=10737418252, \old(x)=10737418244, gh_u={10737418241:0}, gh_u.parts.msw=6442450944, high=2147483648, x=10737418244] [L50] COND FALSE !(0) VAL [\old(x)=10737418244, high=2147483648, x=10737418244] [L52] FCALL ieee_double_shape_type sh_u; VAL [\old(x)=10737418244, high=2147483648, sh_u={10737418246:0}, x=10737418244] [L53] FCALL sh_u.value = (x) VAL [\old(x)=10737418244, high=2147483648, sh_u={10737418246:0}, x=10737418244] [L54] FCALL sh_u.parts.msw = (high & 0x7fffffff) VAL [\old(x)=10737418244, high=2147483648, sh_u={10737418246:0}, x=10737418244] [L55] EXPR, FCALL sh_u.value VAL [\old(x)=10737418244, high=2147483648, sh_u={10737418246:0}, sh_u.value=10737418244, x=10737418244] [L55] (x) = sh_u.value VAL [\old(x)=10737418244, high=2147483648, sh_u={10737418246:0}, sh_u.value=10737418244, x=10737418244] [L55] FCALL (x) = sh_u.value VAL [(x) = sh_u.value=10737418248, \old(x)=10737418244, high=2147483648, sh_u={10737418246:0}, sh_u.value=10737418244, x=10737418244] [L55] FCALL (x) = sh_u.value VAL [(x) = sh_u.value=10737418248, (x) = sh_u.value=10737418243, \old(x)=10737418244, high=2147483648, sh_u={10737418246:0}, sh_u.value=10737418244, x=10737418244] [L56] COND FALSE !(0) VAL [\old(x)=10737418244, high=2147483648, x=10737418244] [L57] RET return x; VAL [\old(x)=10737418244, \result=10737418244, high=2147483648, x=10737418244] [L69] EXPR fabs_double(x) VAL [fabs_double(x)=10737418244, x=10737418244] [L69] double res = fabs_double(x); [L72] CALL, EXPR isinf_double(res) VAL [\old(x)=10737418244] [L31] __int32_t hx, lx; VAL [\old(x)=10737418244, x=10737418244] [L33] FCALL ieee_double_shape_type ew_u; VAL [\old(x)=10737418244, ew_u={10737418249:0}, x=10737418244] [L34] FCALL ew_u.value = (x) VAL [\old(x)=10737418244, ew_u={10737418249:0}, x=10737418244] [L35] EXPR, FCALL ew_u.parts.msw VAL [\old(x)=10737418244, ew_u={10737418249:0}, ew_u.parts.msw=6442450944, x=10737418244] [L35] (hx) = ew_u.parts.msw VAL [\old(x)=10737418244, ew_u={10737418249:0}, ew_u.parts.msw=6442450944, hx=-2147483648, x=10737418244] [L35] FCALL (hx) = ew_u.parts.msw VAL [(hx) = ew_u.parts.msw=10737418250, \old(x)=10737418244, ew_u={10737418249:0}, ew_u.parts.msw=6442450944, hx=-2147483648, x=10737418244] [L36] EXPR, FCALL ew_u.parts.lsw VAL [\old(x)=10737418244, ew_u={10737418249:0}, ew_u.parts.lsw=10737418240, hx=-2147483648, x=10737418244] [L36] (lx) = ew_u.parts.lsw VAL [\old(x)=10737418244, ew_u={10737418249:0}, ew_u.parts.lsw=10737418240, hx=-2147483648, lx=-2147483648, x=10737418244] [L36] FCALL (lx) = ew_u.parts.lsw VAL [(lx) = ew_u.parts.lsw=10737418245, \old(x)=10737418244, ew_u={10737418249:0}, ew_u.parts.lsw=10737418240, hx=-2147483648, lx=-2147483648, x=10737418244] [L37] COND FALSE !(0) VAL [\old(x)=10737418244, hx=-2147483648, lx=-2147483648, x=10737418244] [L38] hx &= 0x7fffffff [L39] hx |= (__uint32_t)(lx | (-lx)) >> 31 [L40] hx = 0x7ff00000 - hx [L41] RET return 1 - (int)((__uint32_t)(hx | (-hx)) >> 31); VAL [\old(x)=10737418244, \result=0, hx=2146435073, lx=-2147483648, x=10737418244] [L72] EXPR isinf_double(res) VAL [isinf_double(res)=0, res=10737418244, x=10737418244] [L72] COND TRUE !isinf_double(res) [L73] __VERIFIER_error() VAL [res=10737418244, x=10737418244] - StatisticsResult: Ultimate Automizer benchmark data CFG has 7 procedures, 78 locations, 1 error locations. UNSAFE Result, 0.8s OverallTime, 2 OverallIterations, 1 TraceHistogramMax, 0.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 60 SDtfs, 0 SDslu, 0 SDs, 0 SdLazy, 0 SolverSat, 0 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=61occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s AbstIntTime, 0 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 79 NumberOfCodeBlocks, 79 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 22 ConstructedInterpolants, 0 QuantifiedInterpolants, 484 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces Received shutdown request... ### Bit-precise run ### This is Ultimate 0.1.23-40ef509 [2018-09-20 15:01:44,224 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-09-20 15:01:44,227 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-09-20 15:01:44,241 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2018-09-20 15:01:44,252 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-09-20 15:01:44,253 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-09-20 15:01:44,254 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-09-20 15:01:44,255 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-09-20 15:01:44,256 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-09-20 15:01:44,257 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-09-20 15:01:44,259 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-09-20 15:01:44,261 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-09-20 15:01:44,263 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-09-20 15:01:44,264 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-09-20 15:01:44,265 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-09-20 15:01:44,268 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-09-20 15:01:44,268 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-09-20 15:01:44,269 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-09-20 15:01:44,269 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-09-20 15:01:44,271 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-09-20 15:01:44,272 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-09-20 15:01:44,272 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-09-20 15:01:44,274 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-09-20 15:01:44,274 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-09-20 15:01:44,275 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-09-20 15:01:44,275 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-09-20 15:01:44,276 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-09-20 15:01:44,277 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-09-20 15:01:44,278 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-09-20 15:01:44,278 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2018-09-20 15:01:44,310 INFO L110 SettingsManager]: Loading preferences was successful [2018-09-20 15:01:44,310 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-09-20 15:01:44,311 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-09-20 15:01:44,312 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-09-20 15:01:44,312 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-09-20 15:01:44,313 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-09-20 15:01:44,313 INFO L133 SettingsManager]: * Use SBE=true [2018-09-20 15:01:44,313 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-09-20 15:01:44,313 INFO L133 SettingsManager]: * sizeof long=4 [2018-09-20 15:01:44,314 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-09-20 15:01:44,314 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-09-20 15:01:44,314 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-09-20 15:01:44,315 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-09-20 15:01:44,315 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-09-20 15:01:44,315 INFO L133 SettingsManager]: * Use bitvectors instead of ints=true [2018-09-20 15:01:44,315 INFO L133 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2018-09-20 15:01:44,315 INFO L133 SettingsManager]: * sizeof long double=12 [2018-09-20 15:01:44,316 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-09-20 15:01:44,316 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-09-20 15:01:44,316 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-09-20 15:01:44,316 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-09-20 15:01:44,318 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-09-20 15:01:44,318 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-09-20 15:01:44,318 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-09-20 15:01:44,318 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-09-20 15:01:44,318 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-09-20 15:01:44,318 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-09-20 15:01:44,319 INFO L133 SettingsManager]: * Trace refinement strategy=WOLF [2018-09-20 15:01:44,319 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-09-20 15:01:44,319 INFO L133 SettingsManager]: * Command for external solver=cvc4nyu --tear-down-incremental --rewrite-divk --print-success --lang smt [2018-09-20 15:01:44,319 INFO L133 SettingsManager]: * Logic for external solver=AUFBV [2018-09-20 15:01:44,320 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 -> b885e206564f4e9bb7a421e0f9e82e87cbb5e4d9 [2018-09-20 15:01:44,358 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-09-20 15:01:44,377 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-09-20 15:01:44,382 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-09-20 15:01:44,384 INFO L271 PluginConnector]: Initializing CDTParser... [2018-09-20 15:01:44,384 INFO L276 PluginConnector]: CDTParser initialized [2018-09-20 15:01:44,385 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/float-newlib/double_req_bl_1012a_true-unreach-call.c [2018-09-20 15:01:44,730 INFO L221 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/595849b40/fa235daea4694c8f86b698f1935d8bb0/FLAGaad241907 [2018-09-20 15:01:44,915 INFO L277 CDTParser]: Found 1 translation units. [2018-09-20 15:01:44,916 INFO L159 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/float-newlib/double_req_bl_1012a_true-unreach-call.c [2018-09-20 15:01:44,926 INFO L325 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/595849b40/fa235daea4694c8f86b698f1935d8bb0/FLAGaad241907 [2018-09-20 15:01:44,953 INFO L333 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/595849b40/fa235daea4694c8f86b698f1935d8bb0 [2018-09-20 15:01:44,957 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-09-20 15:01:44,962 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-09-20 15:01:44,963 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-09-20 15:01:44,964 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-09-20 15:01:44,972 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-09-20 15:01:44,974 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.09 03:01:44" (1/1) ... [2018-09-20 15:01:44,978 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1bb40aaf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 03:01:44, skipping insertion in model container [2018-09-20 15:01:44,978 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.09 03:01:44" (1/1) ... [2018-09-20 15:01:44,992 INFO L160 ieTranslatorObserver]: Starting translation in SV-COMP mode [2018-09-20 15:01:45,281 INFO L170 PostProcessor]: Settings: Checked method=main [2018-09-20 15:01:45,301 INFO L424 MainDispatcher]: Starting main dispatcher in SV-COMP mode [2018-09-20 15:01:45,337 INFO L170 PostProcessor]: Settings: Checked method=main [2018-09-20 15:01:45,391 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 03:01:45 WrapperNode [2018-09-20 15:01:45,391 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-09-20 15:01:45,392 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-09-20 15:01:45,393 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-09-20 15:01:45,393 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-09-20 15:01:45,411 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 03:01:45" (1/1) ... [2018-09-20 15:01:45,411 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 03:01:45" (1/1) ... [2018-09-20 15:01:45,429 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 03:01:45" (1/1) ... [2018-09-20 15:01:45,439 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 03:01:45" (1/1) ... [2018-09-20 15:01:45,447 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 03:01:45" (1/1) ... [2018-09-20 15:01:45,454 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 03:01:45" (1/1) ... [2018-09-20 15:01:45,461 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 03:01:45" (1/1) ... [2018-09-20 15:01:45,468 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-09-20 15:01:45,471 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-09-20 15:01:45,471 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-09-20 15:01:45,471 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-09-20 15:01:45,472 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 03:01:45" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-09-20 15:01:45,630 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-09-20 15:01:45,630 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-09-20 15:01:45,630 INFO L138 BoogieDeclarations]: Found implementation of procedure isnan_double [2018-09-20 15:01:45,631 INFO L138 BoogieDeclarations]: Found implementation of procedure __signbit_double [2018-09-20 15:01:45,631 INFO L138 BoogieDeclarations]: Found implementation of procedure isinf_double [2018-09-20 15:01:45,631 INFO L138 BoogieDeclarations]: Found implementation of procedure fabs_double [2018-09-20 15:01:45,631 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-09-20 15:01:45,631 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2018-09-20 15:01:45,631 INFO L130 BoogieDeclarations]: Found specification of procedure isnan_double [2018-09-20 15:01:45,631 INFO L130 BoogieDeclarations]: Found specification of procedure __signbit_double [2018-09-20 15:01:45,632 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-09-20 15:01:45,632 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE8 [2018-09-20 15:01:45,632 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2018-09-20 15:01:45,632 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-09-20 15:01:45,632 INFO L130 BoogieDeclarations]: Found specification of procedure isinf_double [2018-09-20 15:01:45,634 INFO L130 BoogieDeclarations]: Found specification of procedure fabs_double [2018-09-20 15:01:45,634 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2018-09-20 15:01:45,634 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE8 [2018-09-20 15:01:45,634 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-09-20 15:01:45,634 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-09-20 15:01:45,635 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-09-20 15:01:45,635 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE4 [2018-09-20 15:01:45,635 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intFLOATTYPE8 [2018-09-20 15:01:45,861 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-20 15:01:45,919 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-20 15:01:45,956 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-20 15:01:46,028 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-20 15:01:46,051 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-20 15:01:46,172 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-20 15:01:46,191 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-20 15:01:46,221 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-20 15:01:46,283 INFO L365 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-09-20 15:01:46,283 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.09 03:01:46 BoogieIcfgContainer [2018-09-20 15:01:46,283 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-09-20 15:01:46,285 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-09-20 15:01:46,285 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-09-20 15:01:46,289 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-09-20 15:01:46,289 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.09 03:01:44" (1/3) ... [2018-09-20 15:01:46,290 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3363c247 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.09 03:01:46, skipping insertion in model container [2018-09-20 15:01:46,290 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 03:01:45" (2/3) ... [2018-09-20 15:01:46,291 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3363c247 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.09 03:01:46, skipping insertion in model container [2018-09-20 15:01:46,291 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.09 03:01:46" (3/3) ... [2018-09-20 15:01:46,294 INFO L112 eAbstractionObserver]: Analyzing ICFG double_req_bl_1012a_true-unreach-call.c [2018-09-20 15:01:46,304 INFO L137 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-09-20 15:01:46,313 INFO L149 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-09-20 15:01:46,365 INFO L130 ementStrategyFactory]: Using default assertion order modulation [2018-09-20 15:01:46,366 INFO L381 AbstractCegarLoop]: Interprodecural is true [2018-09-20 15:01:46,366 INFO L382 AbstractCegarLoop]: Hoare is true [2018-09-20 15:01:46,367 INFO L383 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-09-20 15:01:46,367 INFO L384 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-09-20 15:01:46,367 INFO L385 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-09-20 15:01:46,367 INFO L386 AbstractCegarLoop]: Difference is false [2018-09-20 15:01:46,369 INFO L387 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-09-20 15:01:46,369 INFO L392 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-09-20 15:01:46,386 INFO L276 IsEmpty]: Start isEmpty. Operand 60 states. [2018-09-20 15:01:46,394 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2018-09-20 15:01:46,395 INFO L368 BasicCegarLoop]: Found error trace [2018-09-20 15:01:46,396 INFO L376 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-20 15:01:46,399 INFO L423 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-20 15:01:46,404 INFO L82 PathProgramCache]: Analyzing trace with hash -1843779315, now seen corresponding path program 1 times [2018-09-20 15:01:46,408 INFO L227 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-09-20 15:01:46,409 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 2 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with mathsat -unsat_core_generation=3 [2018-09-20 15:01:46,418 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-20 15:01:46,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-20 15:01:46,497 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-20 15:01:46,521 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-20 15:01:46,522 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-09-20 15:01:46,539 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-20 15:01:46,539 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-09-20 15:01:46,544 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-09-20 15:01:46,560 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-09-20 15:01:46,562 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-09-20 15:01:46,565 INFO L87 Difference]: Start difference. First operand 60 states. Second operand 2 states. [2018-09-20 15:01:46,604 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-20 15:01:46,605 INFO L93 Difference]: Finished difference Result 112 states and 125 transitions. [2018-09-20 15:01:46,605 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-09-20 15:01:46,608 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 22 [2018-09-20 15:01:46,610 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-20 15:01:46,623 INFO L225 Difference]: With dead ends: 112 [2018-09-20 15:01:46,625 INFO L226 Difference]: Without dead ends: 56 [2018-09-20 15:01:46,630 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-09-20 15:01:46,651 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 56 states. [2018-09-20 15:01:46,673 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 56 to 56. [2018-09-20 15:01:46,675 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 56 states. [2018-09-20 15:01:46,677 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 56 states to 56 states and 55 transitions. [2018-09-20 15:01:46,679 INFO L78 Accepts]: Start accepts. Automaton has 56 states and 55 transitions. Word has length 22 [2018-09-20 15:01:46,679 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-20 15:01:46,680 INFO L480 AbstractCegarLoop]: Abstraction has 56 states and 55 transitions. [2018-09-20 15:01:46,680 INFO L481 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-09-20 15:01:46,680 INFO L276 IsEmpty]: Start isEmpty. Operand 56 states and 55 transitions. [2018-09-20 15:01:46,682 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2018-09-20 15:01:46,683 INFO L368 BasicCegarLoop]: Found error trace [2018-09-20 15:01:46,683 INFO L376 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-20 15:01:46,683 INFO L423 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-20 15:01:46,684 INFO L82 PathProgramCache]: Analyzing trace with hash -641435038, now seen corresponding path program 1 times [2018-09-20 15:01:46,686 INFO L227 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-09-20 15:01:46,686 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 3 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with mathsat -unsat_core_generation=3 [2018-09-20 15:01:46,695 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-20 15:01:46,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-20 15:01:46,901 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-20 15:01:47,082 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 11 [2018-09-20 15:01:47,089 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 10 [2018-09-20 15:01:47,090 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-09-20 15:01:47,176 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-20 15:01:47,310 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-09-20 15:01:47,310 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:27, output treesize:23 [2018-09-20 15:01:47,433 WARN L178 SmtUtils]: Spent 100.00 ms on a formula simplification that was a NOOP. DAG size: 21 [2018-09-20 15:01:47,503 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 16 [2018-09-20 15:01:47,523 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 4 [2018-09-20 15:01:47,524 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-09-20 15:01:47,677 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-20 15:01:47,734 INFO L267 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 1 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-09-20 15:01:47,734 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 4 variables, input treesize:32, output treesize:17 [2018-09-20 15:01:47,929 WARN L178 SmtUtils]: Spent 130.00 ms on a formula simplification that was a NOOP. DAG size: 15 [2018-09-20 15:01:48,152 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 9 [2018-09-20 15:01:48,159 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 8 [2018-09-20 15:01:48,160 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-09-20 15:01:48,165 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-20 15:01:48,194 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2018-09-20 15:01:48,195 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:35, output treesize:31 [2018-09-20 15:01:48,307 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 20 [2018-09-20 15:01:48,353 INFO L700 Elim1Store]: detected not equals via solver [2018-09-20 15:01:48,379 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 27 [2018-09-20 15:01:48,380 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-09-20 15:01:48,442 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-20 15:01:48,495 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2018-09-20 15:01:48,496 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:43, output treesize:39 [2018-09-20 15:01:48,616 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 66 treesize of output 50 [2018-09-20 15:01:48,627 INFO L700 Elim1Store]: detected not equals via solver [2018-09-20 15:01:48,634 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 50 treesize of output 34 [2018-09-20 15:01:48,636 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-09-20 15:01:48,677 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-20 15:01:48,763 INFO L267 ElimStorePlain]: Start of recursive call 1: 4 dim-0 vars, 1 dim-2 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2018-09-20 15:01:48,763 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 5 variables, input treesize:84, output treesize:46 [2018-09-20 15:01:49,747 INFO L682 Elim1Store]: detected equality via solver [2018-09-20 15:01:49,767 INFO L682 Elim1Store]: detected equality via solver [2018-09-20 15:01:49,769 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 2 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 35 [2018-09-20 15:01:49,787 INFO L700 Elim1Store]: detected not equals via solver [2018-09-20 15:01:49,804 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 2 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 35 treesize of output 25 [2018-09-20 15:01:49,805 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-09-20 15:01:49,827 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-20 15:01:49,847 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-09-20 15:01:49,848 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:36, output treesize:28 [2018-09-20 15:01:50,337 INFO L682 Elim1Store]: detected equality via solver [2018-09-20 15:01:50,352 INFO L682 Elim1Store]: detected equality via solver [2018-09-20 15:01:50,355 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 2 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 54 treesize of output 56 [2018-09-20 15:01:50,373 INFO L700 Elim1Store]: detected not equals via solver [2018-09-20 15:01:50,395 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 2 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 56 treesize of output 52 [2018-09-20 15:01:50,396 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-09-20 15:01:50,429 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-20 15:01:50,470 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2018-09-20 15:01:50,471 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:63, output treesize:55 [2018-09-20 15:01:50,687 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 35 treesize of output 27 [2018-09-20 15:01:50,718 INFO L700 Elim1Store]: detected not equals via solver [2018-09-20 15:01:50,723 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 15 [2018-09-20 15:01:50,725 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-09-20 15:01:50,737 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-20 15:01:50,755 INFO L267 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 1 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-09-20 15:01:50,755 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 4 variables, input treesize:44, output treesize:18 [2018-09-20 15:01:51,812 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-20 15:01:51,812 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-09-20 15:01:51,827 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-20 15:01:51,827 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [22] imperfect sequences [] total 22 [2018-09-20 15:01:51,829 INFO L459 AbstractCegarLoop]: Interpolant automaton has 22 states [2018-09-20 15:01:51,829 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2018-09-20 15:01:51,830 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=416, Unknown=0, NotChecked=0, Total=462 [2018-09-20 15:01:51,831 INFO L87 Difference]: Start difference. First operand 56 states and 55 transitions. Second operand 22 states. [2018-09-20 15:01:52,852 WARN L178 SmtUtils]: Spent 139.00 ms on a formula simplification that was a NOOP. DAG size: 29 [2018-09-20 15:01:54,495 WARN L178 SmtUtils]: Spent 263.00 ms on a formula simplification. DAG size of input: 41 DAG size of output: 39 [2018-09-20 15:01:54,999 WARN L178 SmtUtils]: Spent 194.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 48 [2018-09-20 15:01:56,273 WARN L178 SmtUtils]: Spent 741.00 ms on a formula simplification that was a NOOP. DAG size: 49 [2018-09-20 15:01:58,618 WARN L178 SmtUtils]: Spent 126.00 ms on a formula simplification that was a NOOP. DAG size: 28 [2018-09-20 15:01:59,709 WARN L178 SmtUtils]: Spent 202.00 ms on a formula simplification that was a NOOP. DAG size: 35 [2018-09-20 15:02:00,161 WARN L178 SmtUtils]: Spent 121.00 ms on a formula simplification that was a NOOP. DAG size: 31 [2018-09-20 15:02:01,102 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-20 15:02:01,102 INFO L93 Difference]: Finished difference Result 56 states and 55 transitions. [2018-09-20 15:02:01,103 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2018-09-20 15:02:01,103 INFO L78 Accepts]: Start accepts. Automaton has 22 states. Word has length 55 [2018-09-20 15:02:01,104 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-20 15:02:01,105 INFO L225 Difference]: With dead ends: 56 [2018-09-20 15:02:01,106 INFO L226 Difference]: Without dead ends: 0 [2018-09-20 15:02:01,108 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 75 GetRequests, 33 SyntacticMatches, 1 SemanticMatches, 41 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 323 ImplicationChecksByTransitivity, 8.8s TimeCoverageRelationStatistics Valid=176, Invalid=1630, Unknown=0, NotChecked=0, Total=1806 [2018-09-20 15:02:01,108 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-09-20 15:02:01,108 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-09-20 15:02:01,109 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-09-20 15:02:01,109 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-09-20 15:02:01,109 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 55 [2018-09-20 15:02:01,109 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-20 15:02:01,109 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-09-20 15:02:01,109 INFO L481 AbstractCegarLoop]: Interpolant automaton has 22 states. [2018-09-20 15:02:01,109 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-09-20 15:02:01,110 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-09-20 15:02:01,114 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2018-09-20 15:02:01,330 INFO L426 ceAbstractionStarter]: For program point fabs_doubleEXIT(lines 44 58) no Hoare annotation was computed. [2018-09-20 15:02:01,331 INFO L426 ceAbstractionStarter]: For program point L54(line 54) no Hoare annotation was computed. [2018-09-20 15:02:01,331 INFO L426 ceAbstractionStarter]: For program point L52(line 52) no Hoare annotation was computed. [2018-09-20 15:02:01,331 INFO L426 ceAbstractionStarter]: For program point L52-1(line 52) no Hoare annotation was computed. [2018-09-20 15:02:01,331 INFO L426 ceAbstractionStarter]: For program point L52-2(line 52) no Hoare annotation was computed. [2018-09-20 15:02:01,331 INFO L426 ceAbstractionStarter]: For program point L52-3(line 52) no Hoare annotation was computed. [2018-09-20 15:02:01,332 INFO L426 ceAbstractionStarter]: For program point L48(line 48) no Hoare annotation was computed. [2018-09-20 15:02:01,332 INFO L426 ceAbstractionStarter]: For program point L46-1(lines 46 50) no Hoare annotation was computed. [2018-09-20 15:02:01,332 INFO L422 ceAbstractionStarter]: At program point L46-3(lines 46 50) the Hoare annotation is: (= |fabs_double_#in~x| fabs_double_~x) [2018-09-20 15:02:01,332 INFO L426 ceAbstractionStarter]: For program point L55(line 55) no Hoare annotation was computed. [2018-09-20 15:02:01,332 INFO L426 ceAbstractionStarter]: For program point L55-1(line 55) no Hoare annotation was computed. [2018-09-20 15:02:01,332 INFO L429 ceAbstractionStarter]: At program point fabs_doubleENTRY(lines 44 58) the Hoare annotation is: true [2018-09-20 15:02:01,332 INFO L426 ceAbstractionStarter]: For program point L53(line 53) no Hoare annotation was computed. [2018-09-20 15:02:01,333 INFO L426 ceAbstractionStarter]: For program point L55-2(line 55) no Hoare annotation was computed. [2018-09-20 15:02:01,333 INFO L426 ceAbstractionStarter]: For program point L55-3(line 55) no Hoare annotation was computed. [2018-09-20 15:02:01,333 INFO L426 ceAbstractionStarter]: For program point L51(lines 51 56) no Hoare annotation was computed. [2018-09-20 15:02:01,333 INFO L426 ceAbstractionStarter]: For program point L49(line 49) no Hoare annotation was computed. [2018-09-20 15:02:01,333 INFO L426 ceAbstractionStarter]: For program point L51-2(lines 44 58) no Hoare annotation was computed. [2018-09-20 15:02:01,333 INFO L426 ceAbstractionStarter]: For program point L49-1(line 49) no Hoare annotation was computed. [2018-09-20 15:02:01,333 INFO L426 ceAbstractionStarter]: For program point L51-3(lines 51 56) no Hoare annotation was computed. [2018-09-20 15:02:01,333 INFO L426 ceAbstractionStarter]: For program point L47(line 47) no Hoare annotation was computed. [2018-09-20 15:02:01,334 INFO L426 ceAbstractionStarter]: For program point L49-2(line 49) no Hoare annotation was computed. [2018-09-20 15:02:01,335 INFO L426 ceAbstractionStarter]: For program point L47-1(line 47) no Hoare annotation was computed. [2018-09-20 15:02:01,335 INFO L426 ceAbstractionStarter]: For program point L47-2(line 47) no Hoare annotation was computed. [2018-09-20 15:02:01,335 INFO L426 ceAbstractionStarter]: For program point L47-3(line 47) no Hoare annotation was computed. [2018-09-20 15:02:01,335 INFO L426 ceAbstractionStarter]: For program point fabs_doubleFINAL(lines 44 58) no Hoare annotation was computed. [2018-09-20 15:02:01,335 INFO L426 ceAbstractionStarter]: For program point isnan_doubleENTRY(line 15) no Hoare annotation was computed. [2018-09-20 15:02:01,335 INFO L426 ceAbstractionStarter]: For program point isnan_doubleEXIT(line 15) no Hoare annotation was computed. [2018-09-20 15:02:01,335 INFO L426 ceAbstractionStarter]: For program point isnan_doubleFINAL(line 15) no Hoare annotation was computed. [2018-09-20 15:02:01,337 INFO L426 ceAbstractionStarter]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2018-09-20 15:02:01,337 INFO L429 ceAbstractionStarter]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: true [2018-09-20 15:02:01,337 INFO L426 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2018-09-20 15:02:01,337 INFO L426 ceAbstractionStarter]: For program point L33(line 33) no Hoare annotation was computed. [2018-09-20 15:02:01,337 INFO L426 ceAbstractionStarter]: For program point L35-2(line 35) no Hoare annotation was computed. [2018-09-20 15:02:01,337 INFO L426 ceAbstractionStarter]: For program point L33-1(line 33) no Hoare annotation was computed. [2018-09-20 15:02:01,337 INFO L426 ceAbstractionStarter]: For program point L33-2(line 33) no Hoare annotation was computed. [2018-09-20 15:02:01,337 INFO L426 ceAbstractionStarter]: For program point L33-3(line 33) no Hoare annotation was computed. [2018-09-20 15:02:01,338 INFO L426 ceAbstractionStarter]: For program point L36(line 36) no Hoare annotation was computed. [2018-09-20 15:02:01,338 INFO L426 ceAbstractionStarter]: For program point L36-1(line 36) no Hoare annotation was computed. [2018-09-20 15:02:01,338 INFO L426 ceAbstractionStarter]: For program point L34(line 34) no Hoare annotation was computed. [2018-09-20 15:02:01,338 INFO L426 ceAbstractionStarter]: For program point L36-2(line 36) no Hoare annotation was computed. [2018-09-20 15:02:01,338 INFO L426 ceAbstractionStarter]: For program point L36-3(line 36) no Hoare annotation was computed. [2018-09-20 15:02:01,338 INFO L426 ceAbstractionStarter]: For program point L32-1(lines 32 37) no Hoare annotation was computed. [2018-09-20 15:02:01,338 INFO L422 ceAbstractionStarter]: At program point L32-3(lines 32 37) the Hoare annotation is: (= isinf_double_~x |isinf_double_#in~x|) [2018-09-20 15:02:01,338 INFO L426 ceAbstractionStarter]: For program point L32-4(lines 32 37) no Hoare annotation was computed. [2018-09-20 15:02:01,338 INFO L426 ceAbstractionStarter]: For program point isinf_doubleFINAL(lines 30 42) no Hoare annotation was computed. [2018-09-20 15:02:01,339 INFO L426 ceAbstractionStarter]: For program point isinf_doubleEXIT(lines 30 42) no Hoare annotation was computed. [2018-09-20 15:02:01,339 INFO L429 ceAbstractionStarter]: At program point isinf_doubleENTRY(lines 30 42) the Hoare annotation is: true [2018-09-20 15:02:01,339 INFO L426 ceAbstractionStarter]: For program point L35(line 35) no Hoare annotation was computed. [2018-09-20 15:02:01,339 INFO L426 ceAbstractionStarter]: For program point L35-1(line 35) no Hoare annotation was computed. [2018-09-20 15:02:01,339 INFO L426 ceAbstractionStarter]: For program point __signbit_doubleFINAL(lines 17 27) no Hoare annotation was computed. [2018-09-20 15:02:01,339 INFO L426 ceAbstractionStarter]: For program point __signbit_doubleEXIT(lines 17 27) no Hoare annotation was computed. [2018-09-20 15:02:01,339 INFO L426 ceAbstractionStarter]: For program point L23(line 23) no Hoare annotation was computed. [2018-09-20 15:02:01,339 INFO L426 ceAbstractionStarter]: For program point L22(line 22) no Hoare annotation was computed. [2018-09-20 15:02:01,339 INFO L426 ceAbstractionStarter]: For program point L23-1(line 23) no Hoare annotation was computed. [2018-09-20 15:02:01,339 INFO L426 ceAbstractionStarter]: For program point L21(line 21) no Hoare annotation was computed. [2018-09-20 15:02:01,340 INFO L426 ceAbstractionStarter]: For program point L23-2(line 23) no Hoare annotation was computed. [2018-09-20 15:02:01,340 INFO L426 ceAbstractionStarter]: For program point L21-1(line 21) no Hoare annotation was computed. [2018-09-20 15:02:01,340 INFO L426 ceAbstractionStarter]: For program point L21-2(line 21) no Hoare annotation was computed. [2018-09-20 15:02:01,340 INFO L426 ceAbstractionStarter]: For program point L20-1(lines 20 24) no Hoare annotation was computed. [2018-09-20 15:02:01,340 INFO L426 ceAbstractionStarter]: For program point L21-3(line 21) no Hoare annotation was computed. [2018-09-20 15:02:01,340 INFO L426 ceAbstractionStarter]: For program point L20-3(lines 20 24) no Hoare annotation was computed. [2018-09-20 15:02:01,340 INFO L426 ceAbstractionStarter]: For program point L20-4(lines 20 24) no Hoare annotation was computed. [2018-09-20 15:02:01,340 INFO L426 ceAbstractionStarter]: For program point __signbit_doubleENTRY(lines 17 27) no Hoare annotation was computed. [2018-09-20 15:02:01,340 INFO L426 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2018-09-20 15:02:01,340 INFO L429 ceAbstractionStarter]: At program point L-1(line -1) the Hoare annotation is: true [2018-09-20 15:02:01,341 INFO L429 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2018-09-20 15:02:01,341 INFO L426 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2018-09-20 15:02:01,341 INFO L429 ceAbstractionStarter]: At program point mainENTRY(lines 60 78) the Hoare annotation is: true [2018-09-20 15:02:01,341 INFO L426 ceAbstractionStarter]: For program point mainFINAL(lines 60 78) no Hoare annotation was computed. [2018-09-20 15:02:01,341 INFO L426 ceAbstractionStarter]: For program point mainErr0ASSERT_VIOLATIONERROR_FUNCTION(line 73) no Hoare annotation was computed. [2018-09-20 15:02:01,341 INFO L426 ceAbstractionStarter]: For program point L73(line 73) no Hoare annotation was computed. [2018-09-20 15:02:01,341 INFO L426 ceAbstractionStarter]: For program point mainEXIT(lines 60 78) no Hoare annotation was computed. [2018-09-20 15:02:01,342 INFO L422 ceAbstractionStarter]: At program point L72(line 72) the Hoare annotation is: (and (= (fp.div RNE ((_ to_fp 11 53) RNE 1.0) (_ +zero 11 53)) main_~x~0) (exists ((|v_q#valueAsBitvector_10| (_ BitVec 64)) (|v_q#valueAsBitvector_9| (_ BitVec 64))) (let ((.cse1 (fp.div RNE ((_ to_fp 11 53) RNE 1.0) (_ +zero 11 53)))) (and (= (let ((.cse0 (concat (bvand ((_ extract 63 32) |v_q#valueAsBitvector_9|) (_ bv2147483647 32)) ((_ extract 31 0) |v_q#valueAsBitvector_10|)))) (fp ((_ extract 63 63) .cse0) ((_ extract 62 52) .cse0) ((_ extract 51 0) .cse0))) main_~res~0) (= .cse1 (fp ((_ extract 63 63) |v_q#valueAsBitvector_10|) ((_ extract 62 52) |v_q#valueAsBitvector_10|) ((_ extract 51 0) |v_q#valueAsBitvector_10|))) (= (fp ((_ extract 63 63) |v_q#valueAsBitvector_9|) ((_ extract 62 52) |v_q#valueAsBitvector_9|) ((_ extract 51 0) |v_q#valueAsBitvector_9|)) .cse1))))) [2018-09-20 15:02:01,342 INFO L426 ceAbstractionStarter]: For program point L72-1(lines 72 75) no Hoare annotation was computed. [2018-09-20 15:02:01,342 INFO L422 ceAbstractionStarter]: At program point L69(line 69) the Hoare annotation is: (= (fp.div RNE ((_ to_fp 11 53) RNE 1.0) (_ +zero 11 53)) main_~x~0) [2018-09-20 15:02:01,342 INFO L426 ceAbstractionStarter]: For program point L69-1(line 69) no Hoare annotation was computed. [2018-09-20 15:02:01,355 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.09 03:02:01 BoogieIcfgContainer [2018-09-20 15:02:01,355 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-09-20 15:02:01,356 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-09-20 15:02:01,356 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-09-20 15:02:01,356 INFO L276 PluginConnector]: Witness Printer initialized [2018-09-20 15:02:01,356 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.09 03:01:46" (3/4) ... [2018-09-20 15:02:01,361 INFO L144 WitnessPrinter]: Generating witness for correct program [2018-09-20 15:02:01,369 INFO L316 RCFGBacktranslator]: Ignoring RootEdge to procedure fabs_double [2018-09-20 15:02:01,369 INFO L316 RCFGBacktranslator]: Ignoring RootEdge to procedure isnan_double [2018-09-20 15:02:01,369 INFO L316 RCFGBacktranslator]: Ignoring RootEdge to procedure ULTIMATE.init [2018-09-20 15:02:01,369 INFO L316 RCFGBacktranslator]: Ignoring RootEdge to procedure isinf_double [2018-09-20 15:02:01,370 INFO L316 RCFGBacktranslator]: Ignoring RootEdge to procedure __signbit_double [2018-09-20 15:02:01,370 INFO L316 RCFGBacktranslator]: Ignoring RootEdge to procedure main [2018-09-20 15:02:01,375 INFO L850 BoogieBacktranslator]: Reduced CFG by removing 16 nodes and edges [2018-09-20 15:02:01,376 INFO L850 BoogieBacktranslator]: Reduced CFG by removing 7 nodes and edges [2018-09-20 15:02:01,376 INFO L850 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2018-09-20 15:02:01,406 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: \old(x) == x [2018-09-20 15:02:01,406 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: x == \old(x) [2018-09-20 15:02:01,446 INFO L145 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2018-09-20 15:02:01,446 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-09-20 15:02:01,447 INFO L168 Benchmark]: Toolchain (without parser) took 16488.53 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 215.0 MB). Free memory was 951.8 MB in the beginning and 1.2 GB in the end (delta: -209.4 MB). Peak memory consumption was 5.6 MB. Max. memory is 11.5 GB. [2018-09-20 15:02:01,449 INFO L168 Benchmark]: CDTParser took 0.20 ms. Allocated memory is still 1.0 GB. Free memory is still 978.7 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-09-20 15:02:01,449 INFO L168 Benchmark]: CACSL2BoogieTranslator took 428.55 ms. Allocated memory is still 1.0 GB. Free memory was 951.8 MB in the beginning and 941.1 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2018-09-20 15:02:01,450 INFO L168 Benchmark]: Boogie Preprocessor took 78.35 ms. Allocated memory is still 1.0 GB. Free memory was 941.1 MB in the beginning and 935.7 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. [2018-09-20 15:02:01,450 INFO L168 Benchmark]: RCFGBuilder took 812.59 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 148.4 MB). Free memory was 935.7 MB in the beginning and 1.1 GB in the end (delta: -179.8 MB). Peak memory consumption was 22.2 MB. Max. memory is 11.5 GB. [2018-09-20 15:02:01,451 INFO L168 Benchmark]: TraceAbstraction took 15070.52 ms. Allocated memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 66.6 MB). Free memory was 1.1 GB in the beginning and 1.2 GB in the end (delta: -45.7 MB). Peak memory consumption was 20.8 MB. Max. memory is 11.5 GB. [2018-09-20 15:02:01,452 INFO L168 Benchmark]: Witness Printer took 90.84 ms. Allocated memory is still 1.2 GB. Free memory is still 1.2 GB. There was no memory consumed. Max. memory is 11.5 GB. [2018-09-20 15:02:01,459 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20 ms. Allocated memory is still 1.0 GB. Free memory is still 978.7 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 428.55 ms. Allocated memory is still 1.0 GB. Free memory was 951.8 MB in the beginning and 941.1 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 78.35 ms. Allocated memory is still 1.0 GB. Free memory was 941.1 MB in the beginning and 935.7 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. * RCFGBuilder took 812.59 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 148.4 MB). Free memory was 935.7 MB in the beginning and 1.1 GB in the end (delta: -179.8 MB). Peak memory consumption was 22.2 MB. Max. memory is 11.5 GB. * TraceAbstraction took 15070.52 ms. Allocated memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 66.6 MB). Free memory was 1.1 GB in the beginning and 1.2 GB in the end (delta: -45.7 MB). Peak memory consumption was 20.8 MB. Max. memory is 11.5 GB. * Witness Printer took 90.84 ms. Allocated memory is still 1.2 GB. Free memory is still 1.2 GB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 73]: 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: 46]: Loop Invariant Derived loop invariant: \old(x) == x - InvariantResult [Line: 32]: Loop Invariant Derived loop invariant: x == \old(x) - StatisticsResult: Ultimate Automizer benchmark data CFG has 7 procedures, 77 locations, 1 error locations. SAFE Result, 14.9s OverallTime, 2 OverallIterations, 1 TraceHistogramMax, 9.3s AutomataDifference, 0.0s DeadEndRemovalTime, 0.2s HoareAnnotationTime, HoareTripleCheckerStatistics: 89 SDtfs, 41 SDslu, 461 SDs, 0 SdLazy, 421 SolverSat, 19 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 3.3s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 96 GetRequests, 54 SyntacticMatches, 1 SemanticMatches, 41 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 323 ImplicationChecksByTransitivity, 8.8s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=60occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s AbstIntTime, 0 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 2 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 10 LocationsWithAnnotation, 12 PreInvPairs, 15 NumberOfFragments, 86 HoareAnnotationTreeSize, 12 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 10 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.1s HoareSimplificationTimeInter, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 4.9s InterpolantComputationTime, 77 NumberOfCodeBlocks, 77 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 75 ConstructedInterpolants, 39 QuantifiedInterpolants, 76851 SizeOfPredicates, 21 NumberOfNonLiveVariables, 159 ConjunctsInSsa, 31 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...