/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/Ultimate.py --spec ../../../trunk/examples/svcomp/ReachSafety.prp --file ../../../trunk/examples/svcomp/float-newlib/double_req_bl_1010_true-unreach-call.c --full-output --architecture 32bit --traceabstraction.compute.hoare.annotation.of.negated.interpolant.automaton,.abstraction.and.cfg false -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 5eb3fea6 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_1010_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 b96c44c6dbde860fb4c9866ab5dc760657d1c0c9 --traceabstraction.compute.hoare.annotation.of.negated.interpolant.automaton,.abstraction.and.cfg false .......................................................................................................................................................................................................................................................................................................... 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_1010_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 b96c44c6dbde860fb4c9866ab5dc760657d1c0c9 --traceabstraction.compute.hoare.annotation.of.negated.interpolant.automaton,.abstraction.and.cfg false ...................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE --- Real Ultimate output --- This is Ultimate 0.1.23-5eb3fea [2018-09-21 18:09:32,307 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-09-21 18:09:32,309 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-09-21 18:09:32,328 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-09-21 18:09:32,328 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-09-21 18:09:32,330 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-09-21 18:09:32,334 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-09-21 18:09:32,337 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-09-21 18:09:32,339 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-09-21 18:09:32,343 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-09-21 18:09:32,347 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-09-21 18:09:32,347 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-09-21 18:09:32,348 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-09-21 18:09:32,352 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-09-21 18:09:32,353 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-09-21 18:09:32,354 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-09-21 18:09:32,355 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-09-21 18:09:32,365 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-09-21 18:09:32,367 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-09-21 18:09:32,368 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-09-21 18:09:32,372 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-09-21 18:09:32,373 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-09-21 18:09:32,377 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-09-21 18:09:32,377 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-09-21 18:09:32,378 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-09-21 18:09:32,378 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-09-21 18:09:32,379 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-09-21 18:09:32,380 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-09-21 18:09:32,381 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-09-21 18:09:32,382 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-09-21 18:09:32,383 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-09-21 18:09:32,383 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-09-21 18:09:32,384 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-09-21 18:09:32,384 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-09-21 18:09:32,385 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-09-21 18:09:32,386 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-09-21 18:09:32,386 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2018-09-21 18:09:32,402 INFO L110 SettingsManager]: Loading preferences was successful [2018-09-21 18:09:32,402 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-09-21 18:09:32,404 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-09-21 18:09:32,404 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-09-21 18:09:32,405 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-09-21 18:09:32,405 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-09-21 18:09:32,405 INFO L133 SettingsManager]: * Use SBE=true [2018-09-21 18:09:32,405 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-09-21 18:09:32,405 INFO L133 SettingsManager]: * sizeof long=4 [2018-09-21 18:09:32,406 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-09-21 18:09:32,406 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-09-21 18:09:32,406 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-09-21 18:09:32,406 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-09-21 18:09:32,407 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-09-21 18:09:32,408 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-09-21 18:09:32,408 INFO L133 SettingsManager]: * sizeof long double=12 [2018-09-21 18:09:32,408 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-09-21 18:09:32,408 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-09-21 18:09:32,408 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-09-21 18:09:32,409 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-09-21 18:09:32,409 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-09-21 18:09:32,409 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-09-21 18:09:32,409 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-09-21 18:09:32,409 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-09-21 18:09:32,411 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-09-21 18:09:32,411 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-09-21 18:09:32,411 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-09-21 18:09:32,411 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-09-21 18:09:32,411 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-09-21 18:09:32,412 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 -> b96c44c6dbde860fb4c9866ab5dc760657d1c0c9 Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG -> false [2018-09-21 18:09:32,482 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-09-21 18:09:32,501 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-09-21 18:09:32,505 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-09-21 18:09:32,507 INFO L271 PluginConnector]: Initializing CDTParser... [2018-09-21 18:09:32,507 INFO L276 PluginConnector]: CDTParser initialized [2018-09-21 18:09:32,508 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/float-newlib/double_req_bl_1010_true-unreach-call.c [2018-09-21 18:09:32,923 INFO L221 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3224be815/e014b11b152c4ddeba11bc0d330cb5e8/FLAGb099f1b53 [2018-09-21 18:09:33,107 INFO L277 CDTParser]: Found 1 translation units. [2018-09-21 18:09:33,108 INFO L159 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/float-newlib/double_req_bl_1010_true-unreach-call.c [2018-09-21 18:09:33,120 INFO L325 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3224be815/e014b11b152c4ddeba11bc0d330cb5e8/FLAGb099f1b53 [2018-09-21 18:09:33,144 INFO L333 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3224be815/e014b11b152c4ddeba11bc0d330cb5e8 [2018-09-21 18:09:33,148 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-09-21 18:09:33,151 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-09-21 18:09:33,153 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-09-21 18:09:33,153 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-09-21 18:09:33,161 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-09-21 18:09:33,162 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.09 06:09:33" (1/1) ... [2018-09-21 18:09:33,165 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@8526a68 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 06:09:33, skipping insertion in model container [2018-09-21 18:09:33,165 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.09 06:09:33" (1/1) ... [2018-09-21 18:09:33,179 INFO L160 ieTranslatorObserver]: Starting translation in SV-COMP mode [2018-09-21 18:09:33,468 INFO L170 PostProcessor]: Settings: Checked method=main [2018-09-21 18:09:33,491 INFO L424 MainDispatcher]: Starting main dispatcher in SV-COMP mode [2018-09-21 18:09:33,522 INFO L170 PostProcessor]: Settings: Checked method=main [2018-09-21 18:09:33,571 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 06:09:33 WrapperNode [2018-09-21 18:09:33,572 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-09-21 18:09:33,573 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-09-21 18:09:33,573 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-09-21 18:09:33,573 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-09-21 18:09:33,591 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 06:09:33" (1/1) ... [2018-09-21 18:09:33,591 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 06:09:33" (1/1) ... [2018-09-21 18:09:33,606 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 06:09:33" (1/1) ... [2018-09-21 18:09:33,608 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 06:09:33" (1/1) ... [2018-09-21 18:09:33,618 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 06:09:33" (1/1) ... [2018-09-21 18:09:33,632 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 06:09:33" (1/1) ... [2018-09-21 18:09:33,634 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 06:09:33" (1/1) ... [2018-09-21 18:09:33,638 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-09-21 18:09:33,638 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-09-21 18:09:33,639 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-09-21 18:09:33,639 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-09-21 18:09:33,640 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 06:09:33" (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 [2018-09-21 18:09:33,702 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-09-21 18:09:33,702 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-09-21 18:09:33,702 INFO L138 BoogieDeclarations]: Found implementation of procedure isnan_double [2018-09-21 18:09:33,702 INFO L138 BoogieDeclarations]: Found implementation of procedure __signbit_double [2018-09-21 18:09:33,702 INFO L138 BoogieDeclarations]: Found implementation of procedure fabs_double [2018-09-21 18:09:33,702 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-09-21 18:09:33,703 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2018-09-21 18:09:33,703 INFO L130 BoogieDeclarations]: Found specification of procedure isnan_double [2018-09-21 18:09:33,703 INFO L130 BoogieDeclarations]: Found specification of procedure __signbit_double [2018-09-21 18:09:33,703 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-09-21 18:09:33,703 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2018-09-21 18:09:33,703 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2018-09-21 18:09:33,704 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-09-21 18:09:33,704 INFO L130 BoogieDeclarations]: Found specification of procedure fabs_double [2018-09-21 18:09:33,704 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2018-09-21 18:09:33,704 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2018-09-21 18:09:33,704 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-09-21 18:09:33,704 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-09-21 18:09:33,704 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-09-21 18:09:33,705 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2018-09-21 18:09:33,705 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~real [2018-09-21 18:09:34,243 INFO L373 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-09-21 18:09:34,245 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.09 06:09:34 BoogieIcfgContainer [2018-09-21 18:09:34,245 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-09-21 18:09:34,246 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-09-21 18:09:34,246 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-09-21 18:09:34,249 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-09-21 18:09:34,249 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.09 06:09:33" (1/3) ... [2018-09-21 18:09:34,250 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3bae3235 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.09 06:09:34, skipping insertion in model container [2018-09-21 18:09:34,250 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 06:09:33" (2/3) ... [2018-09-21 18:09:34,251 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3bae3235 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.09 06:09:34, skipping insertion in model container [2018-09-21 18:09:34,251 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.09 06:09:34" (3/3) ... [2018-09-21 18:09:34,253 INFO L112 eAbstractionObserver]: Analyzing ICFG double_req_bl_1010_true-unreach-call.c [2018-09-21 18:09:34,264 INFO L137 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-09-21 18:09:34,273 INFO L149 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-09-21 18:09:34,322 INFO L130 ementStrategyFactory]: Using default assertion order modulation [2018-09-21 18:09:34,323 INFO L381 AbstractCegarLoop]: Interprodecural is true [2018-09-21 18:09:34,323 INFO L382 AbstractCegarLoop]: Hoare is false [2018-09-21 18:09:34,323 INFO L383 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-09-21 18:09:34,323 INFO L384 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-09-21 18:09:34,323 INFO L385 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-09-21 18:09:34,324 INFO L386 AbstractCegarLoop]: Difference is false [2018-09-21 18:09:34,324 INFO L387 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-09-21 18:09:34,325 INFO L392 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-09-21 18:09:34,343 INFO L276 IsEmpty]: Start isEmpty. Operand 46 states. [2018-09-21 18:09:34,355 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2018-09-21 18:09:34,355 INFO L368 BasicCegarLoop]: Found error trace [2018-09-21 18:09:34,356 INFO L376 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-21 18:09:34,359 INFO L423 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-21 18:09:34,365 INFO L82 PathProgramCache]: Analyzing trace with hash -815400355, now seen corresponding path program 1 times [2018-09-21 18:09:34,367 INFO L227 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-09-21 18:09:34,368 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-09-21 18:09:34,418 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-21 18:09:34,419 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-21 18:09:34,419 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-21 18:09:34,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-21 18:09:34,510 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-21 18:09:34,513 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-21 18:09:34,514 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-09-21 18:09:34,518 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-09-21 18:09:34,536 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-09-21 18:09:34,538 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-09-21 18:09:34,541 INFO L87 Difference]: Start difference. First operand 46 states. Second operand 2 states. [2018-09-21 18:09:34,564 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-21 18:09:34,564 INFO L93 Difference]: Finished difference Result 46 states and 45 transitions. [2018-09-21 18:09:34,564 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-09-21 18:09:34,566 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 21 [2018-09-21 18:09:34,567 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-21 18:09:34,582 INFO L225 Difference]: With dead ends: 46 [2018-09-21 18:09:34,583 INFO L226 Difference]: Without dead ends: 42 [2018-09-21 18:09:34,587 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 [2018-09-21 18:09:34,610 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42 states. [2018-09-21 18:09:34,630 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42 to 42. [2018-09-21 18:09:34,632 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 42 states. [2018-09-21 18:09:34,633 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42 states to 42 states and 41 transitions. [2018-09-21 18:09:34,635 INFO L78 Accepts]: Start accepts. Automaton has 42 states and 41 transitions. Word has length 21 [2018-09-21 18:09:34,635 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-21 18:09:34,635 INFO L480 AbstractCegarLoop]: Abstraction has 42 states and 41 transitions. [2018-09-21 18:09:34,636 INFO L481 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-09-21 18:09:34,636 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states and 41 transitions. [2018-09-21 18:09:34,637 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2018-09-21 18:09:34,637 INFO L368 BasicCegarLoop]: Found error trace [2018-09-21 18:09:34,638 INFO L376 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-21 18:09:34,638 INFO L423 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-21 18:09:34,638 INFO L82 PathProgramCache]: Analyzing trace with hash -1951370110, now seen corresponding path program 1 times [2018-09-21 18:09:34,639 INFO L227 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-09-21 18:09:34,639 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-09-21 18:09:34,642 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-21 18:09:34,643 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-21 18:09:34,643 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-21 18:09:34,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-09-21 18:09:34,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-09-21 18:09:34,798 INFO L443 BasicCegarLoop]: Counterexample might be feasible [2018-09-21 18:09:34,843 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.09 06:09:34 BoogieIcfgContainer [2018-09-21 18:09:34,843 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-09-21 18:09:34,844 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-09-21 18:09:34,844 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-09-21 18:09:34,844 INFO L276 PluginConnector]: Witness Printer initialized [2018-09-21 18:09:34,845 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.09 06:09:34" (3/4) ... [2018-09-21 18:09:34,850 INFO L147 WitnessPrinter]: No result that supports witness generation found [2018-09-21 18:09:34,850 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-09-21 18:09:34,851 INFO L168 Benchmark]: Toolchain (without parser) took 1702.17 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 127.9 MB). Free memory was 953.2 MB in the beginning and 1.1 GB in the end (delta: -121.9 MB). Peak memory consumption was 6.1 MB. Max. memory is 11.5 GB. [2018-09-21 18:09:34,853 INFO L168 Benchmark]: CDTParser took 0.45 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. [2018-09-21 18:09:34,854 INFO L168 Benchmark]: CACSL2BoogieTranslator took 419.41 ms. Allocated memory is still 1.0 GB. Free memory was 953.2 MB in the beginning and 942.5 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2018-09-21 18:09:34,855 INFO L168 Benchmark]: Boogie Preprocessor took 65.12 ms. Allocated memory is still 1.0 GB. Free memory is still 942.5 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-09-21 18:09:34,855 INFO L168 Benchmark]: RCFGBuilder took 606.46 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 127.9 MB). Free memory was 942.5 MB in the beginning and 1.1 GB in the end (delta: -160.1 MB). Peak memory consumption was 27.3 MB. Max. memory is 11.5 GB. [2018-09-21 18:09:34,856 INFO L168 Benchmark]: TraceAbstraction took 597.34 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 27.5 MB). Peak memory consumption was 27.5 MB. Max. memory is 11.5 GB. [2018-09-21 18:09:34,857 INFO L168 Benchmark]: Witness Printer took 6.21 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. [2018-09-21 18:09:34,862 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.45 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 419.41 ms. Allocated memory is still 1.0 GB. Free memory was 953.2 MB in the beginning and 942.5 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 65.12 ms. Allocated memory is still 1.0 GB. Free memory is still 942.5 MB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 606.46 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 127.9 MB). Free memory was 942.5 MB in the beginning and 1.1 GB in the end (delta: -160.1 MB). Peak memory consumption was 27.3 MB. Max. memory is 11.5 GB. * TraceAbstraction took 597.34 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 27.5 MB). Peak memory consumption was 27.5 MB. Max. memory is 11.5 GB. * Witness Printer took 6.21 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: 55]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: overapproximation of someBinaryDOUBLEComparisonOperation at line 15, overapproximation of someBinaryArithmeticDOUBLEoperation at line 50, overapproximation of bitwiseAnd at line 38. Possible FailurePath: [L50] double x = 0.0 / 0.0; [L51] CALL, EXPR fabs_double(x) VAL [\old(x)=12] [L29] __uint32_t high; VAL [\old(x)=12, x=12] [L31] FCALL ieee_double_shape_type gh_u; VAL [\old(x)=12, gh_u={9:0}, x=12] [L32] FCALL gh_u.value = (x) VAL [\old(x)=12, gh_u={9:0}, x=12] [L33] EXPR, FCALL gh_u.parts.msw VAL [\old(x)=12, gh_u={9:0}, gh_u.parts.msw=17, x=12] [L33] (high) = gh_u.parts.msw VAL [\old(x)=12, gh_u={9:0}, gh_u.parts.msw=17, high=17, x=12] [L33] FCALL (high) = gh_u.parts.msw VAL [(high) = gh_u.parts.msw=11, \old(x)=12, gh_u={9:0}, gh_u.parts.msw=17, high=17, x=12] [L34] COND FALSE !(0) VAL [\old(x)=12, high=17, x=12] [L36] FCALL ieee_double_shape_type sh_u; VAL [\old(x)=12, high=17, sh_u={15:0}, x=12] [L37] FCALL sh_u.value = (x) VAL [\old(x)=12, high=17, sh_u={15:0}, x=12] [L38] FCALL sh_u.parts.msw = (high & 0x7fffffff) VAL [\old(x)=12, high=17, sh_u={15:0}, x=12] [L39] EXPR, FCALL sh_u.value VAL [\old(x)=12, high=17, sh_u={15:0}, sh_u.value=12, x=12] [L39] (x) = sh_u.value VAL [\old(x)=12, high=17, sh_u={15:0}, sh_u.value=12, x=12] [L39] FCALL (x) = sh_u.value VAL [(x) = sh_u.value=14, \old(x)=12, high=17, sh_u={15:0}, sh_u.value=12, x=12] [L39] FCALL (x) = sh_u.value VAL [(x) = sh_u.value=14, (x) = sh_u.value=13, \old(x)=12, high=17, sh_u={15:0}, sh_u.value=12, x=12] [L40] COND FALSE !(0) VAL [\old(x)=12, high=17, x=12] [L41] RET return x; VAL [\old(x)=12, \result=12, high=17, x=12] [L51] EXPR fabs_double(x) VAL [fabs_double(x)=12, x=12] [L51] double res = fabs_double(x); [L54] CALL, EXPR isnan_double(res) VAL [\old(x)=12] [L15] RET return x != x; VAL [\old(x)=12, \result=0, x=12] [L54] EXPR isnan_double(res) VAL [isnan_double(res)=0, res=12, x=12] [L54] COND TRUE !isnan_double(res) [L55] __VERIFIER_error() VAL [res=12, x=12] - StatisticsResult: Ultimate Automizer benchmark data CFG has 6 procedures, 60 locations, 1 error locations. UNSAFE Result, 0.5s OverallTime, 2 OverallIterations, 1 TraceHistogramMax, 0.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 45 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=46occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s AbstIntTime, 0 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 62 NumberOfCodeBlocks, 62 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 20 ConstructedInterpolants, 0 QuantifiedInterpolants, 400 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 0.1.23-5eb3fea [2018-09-21 18:09:37,405 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-09-21 18:09:37,414 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-09-21 18:09:37,429 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-09-21 18:09:37,429 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-09-21 18:09:37,430 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-09-21 18:09:37,432 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-09-21 18:09:37,434 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-09-21 18:09:37,438 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-09-21 18:09:37,442 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-09-21 18:09:37,444 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-09-21 18:09:37,444 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-09-21 18:09:37,445 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-09-21 18:09:37,449 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-09-21 18:09:37,451 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-09-21 18:09:37,453 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-09-21 18:09:37,454 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-09-21 18:09:37,458 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-09-21 18:09:37,462 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-09-21 18:09:37,463 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-09-21 18:09:37,465 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-09-21 18:09:37,466 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-09-21 18:09:37,469 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-09-21 18:09:37,469 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-09-21 18:09:37,469 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-09-21 18:09:37,470 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-09-21 18:09:37,472 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-09-21 18:09:37,473 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-09-21 18:09:37,474 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-09-21 18:09:37,475 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-09-21 18:09:37,475 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-09-21 18:09:37,476 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-09-21 18:09:37,476 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-09-21 18:09:37,477 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-09-21 18:09:37,478 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-09-21 18:09:37,479 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-09-21 18:09:37,479 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2018-09-21 18:09:37,496 INFO L110 SettingsManager]: Loading preferences was successful [2018-09-21 18:09:37,497 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-09-21 18:09:37,498 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-09-21 18:09:37,498 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-09-21 18:09:37,499 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-09-21 18:09:37,500 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-09-21 18:09:37,500 INFO L133 SettingsManager]: * Use SBE=true [2018-09-21 18:09:37,500 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-09-21 18:09:37,500 INFO L133 SettingsManager]: * sizeof long=4 [2018-09-21 18:09:37,501 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-09-21 18:09:37,501 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-09-21 18:09:37,501 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-09-21 18:09:37,501 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-09-21 18:09:37,502 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-09-21 18:09:37,502 INFO L133 SettingsManager]: * Use bitvectors instead of ints=true [2018-09-21 18:09:37,502 INFO L133 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2018-09-21 18:09:37,502 INFO L133 SettingsManager]: * sizeof long double=12 [2018-09-21 18:09:37,503 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-09-21 18:09:37,503 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-09-21 18:09:37,504 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-09-21 18:09:37,504 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-09-21 18:09:37,504 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-09-21 18:09:37,504 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-09-21 18:09:37,505 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-09-21 18:09:37,505 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-09-21 18:09:37,506 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-09-21 18:09:37,506 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-09-21 18:09:37,506 INFO L133 SettingsManager]: * Trace refinement strategy=WOLF [2018-09-21 18:09:37,506 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-09-21 18:09:37,506 INFO L133 SettingsManager]: * Command for external solver=cvc4nyu --tear-down-incremental --rewrite-divk --print-success --lang smt [2018-09-21 18:09:37,507 INFO L133 SettingsManager]: * Logic for external solver=AUFBV [2018-09-21 18:09:37,507 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 -> b96c44c6dbde860fb4c9866ab5dc760657d1c0c9 Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG -> false [2018-09-21 18:09:37,569 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-09-21 18:09:37,583 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-09-21 18:09:37,587 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-09-21 18:09:37,589 INFO L271 PluginConnector]: Initializing CDTParser... [2018-09-21 18:09:37,589 INFO L276 PluginConnector]: CDTParser initialized [2018-09-21 18:09:37,590 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/float-newlib/double_req_bl_1010_true-unreach-call.c [2018-09-21 18:09:37,940 INFO L221 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f69dcc015/de508661d3114536b8c1d125092fee8f/FLAGe24bc592a [2018-09-21 18:09:38,086 INFO L277 CDTParser]: Found 1 translation units. [2018-09-21 18:09:38,087 INFO L159 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/float-newlib/double_req_bl_1010_true-unreach-call.c [2018-09-21 18:09:38,095 INFO L325 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f69dcc015/de508661d3114536b8c1d125092fee8f/FLAGe24bc592a [2018-09-21 18:09:38,111 INFO L333 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f69dcc015/de508661d3114536b8c1d125092fee8f [2018-09-21 18:09:38,116 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-09-21 18:09:38,119 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-09-21 18:09:38,120 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-09-21 18:09:38,120 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-09-21 18:09:38,127 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-09-21 18:09:38,128 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.09 06:09:38" (1/1) ... [2018-09-21 18:09:38,132 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@542aceff and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 06:09:38, skipping insertion in model container [2018-09-21 18:09:38,132 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.09 06:09:38" (1/1) ... [2018-09-21 18:09:38,146 INFO L160 ieTranslatorObserver]: Starting translation in SV-COMP mode [2018-09-21 18:09:38,469 INFO L170 PostProcessor]: Settings: Checked method=main [2018-09-21 18:09:38,494 INFO L424 MainDispatcher]: Starting main dispatcher in SV-COMP mode [2018-09-21 18:09:38,521 INFO L170 PostProcessor]: Settings: Checked method=main [2018-09-21 18:09:38,567 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 06:09:38 WrapperNode [2018-09-21 18:09:38,568 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-09-21 18:09:38,568 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-09-21 18:09:38,569 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-09-21 18:09:38,569 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-09-21 18:09:38,584 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 06:09:38" (1/1) ... [2018-09-21 18:09:38,585 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 06:09:38" (1/1) ... [2018-09-21 18:09:38,599 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 06:09:38" (1/1) ... [2018-09-21 18:09:38,599 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 06:09:38" (1/1) ... [2018-09-21 18:09:38,607 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 06:09:38" (1/1) ... [2018-09-21 18:09:38,613 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 06:09:38" (1/1) ... [2018-09-21 18:09:38,616 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 06:09:38" (1/1) ... [2018-09-21 18:09:38,620 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-09-21 18:09:38,620 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-09-21 18:09:38,620 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-09-21 18:09:38,621 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-09-21 18:09:38,622 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 06:09:38" (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 [2018-09-21 18:09:38,701 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-09-21 18:09:38,701 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-09-21 18:09:38,701 INFO L138 BoogieDeclarations]: Found implementation of procedure isnan_double [2018-09-21 18:09:38,702 INFO L138 BoogieDeclarations]: Found implementation of procedure __signbit_double [2018-09-21 18:09:38,702 INFO L138 BoogieDeclarations]: Found implementation of procedure fabs_double [2018-09-21 18:09:38,702 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-09-21 18:09:38,702 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2018-09-21 18:09:38,703 INFO L130 BoogieDeclarations]: Found specification of procedure isnan_double [2018-09-21 18:09:38,703 INFO L130 BoogieDeclarations]: Found specification of procedure __signbit_double [2018-09-21 18:09:38,703 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-09-21 18:09:38,703 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE8 [2018-09-21 18:09:38,703 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2018-09-21 18:09:38,703 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-09-21 18:09:38,703 INFO L130 BoogieDeclarations]: Found specification of procedure fabs_double [2018-09-21 18:09:38,704 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2018-09-21 18:09:38,704 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE8 [2018-09-21 18:09:38,704 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-09-21 18:09:38,704 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-09-21 18:09:38,704 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-09-21 18:09:38,704 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE4 [2018-09-21 18:09:38,705 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intFLOATTYPE8 [2018-09-21 18:09:39,099 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-21 18:09:39,157 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-21 18:09:39,464 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-21 18:09:39,494 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-21 18:09:39,532 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-21 18:09:39,552 INFO L373 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-09-21 18:09:39,553 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.09 06:09:39 BoogieIcfgContainer [2018-09-21 18:09:39,553 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-09-21 18:09:39,554 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-09-21 18:09:39,554 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-09-21 18:09:39,558 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-09-21 18:09:39,558 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.09 06:09:38" (1/3) ... [2018-09-21 18:09:39,559 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@77c9f12b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.09 06:09:39, skipping insertion in model container [2018-09-21 18:09:39,560 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 06:09:38" (2/3) ... [2018-09-21 18:09:39,560 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@77c9f12b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.09 06:09:39, skipping insertion in model container [2018-09-21 18:09:39,560 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.09 06:09:39" (3/3) ... [2018-09-21 18:09:39,563 INFO L112 eAbstractionObserver]: Analyzing ICFG double_req_bl_1010_true-unreach-call.c [2018-09-21 18:09:39,574 INFO L137 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-09-21 18:09:39,584 INFO L149 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-09-21 18:09:39,630 INFO L130 ementStrategyFactory]: Using default assertion order modulation [2018-09-21 18:09:39,631 INFO L381 AbstractCegarLoop]: Interprodecural is true [2018-09-21 18:09:39,631 INFO L382 AbstractCegarLoop]: Hoare is false [2018-09-21 18:09:39,632 INFO L383 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-09-21 18:09:39,632 INFO L384 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-09-21 18:09:39,632 INFO L385 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-09-21 18:09:39,632 INFO L386 AbstractCegarLoop]: Difference is false [2018-09-21 18:09:39,632 INFO L387 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-09-21 18:09:39,632 INFO L392 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-09-21 18:09:39,650 INFO L276 IsEmpty]: Start isEmpty. Operand 45 states. [2018-09-21 18:09:39,663 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2018-09-21 18:09:39,664 INFO L368 BasicCegarLoop]: Found error trace [2018-09-21 18:09:39,665 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] [2018-09-21 18:09:39,668 INFO L423 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-21 18:09:39,675 INFO L82 PathProgramCache]: Analyzing trace with hash -907056411, now seen corresponding path program 1 times [2018-09-21 18:09:39,680 INFO L227 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-09-21 18:09:39,681 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 [2018-09-21 18:09:39,696 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-21 18:09:39,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-21 18:09:39,767 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-21 18:09:39,791 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-21 18:09:39,791 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-09-21 18:09:39,805 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-21 18:09:39,805 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-09-21 18:09:39,809 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-09-21 18:09:39,823 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-09-21 18:09:39,824 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-09-21 18:09:39,827 INFO L87 Difference]: Start difference. First operand 45 states. Second operand 2 states. [2018-09-21 18:09:39,846 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-21 18:09:39,846 INFO L93 Difference]: Finished difference Result 45 states and 44 transitions. [2018-09-21 18:09:39,847 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-09-21 18:09:39,848 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 20 [2018-09-21 18:09:39,849 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-21 18:09:39,859 INFO L225 Difference]: With dead ends: 45 [2018-09-21 18:09:39,859 INFO L226 Difference]: Without dead ends: 41 [2018-09-21 18:09:39,861 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-09-21 18:09:39,885 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41 states. [2018-09-21 18:09:39,907 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41 to 41. [2018-09-21 18:09:39,909 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 41 states. [2018-09-21 18:09:39,910 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41 states to 41 states and 40 transitions. [2018-09-21 18:09:39,912 INFO L78 Accepts]: Start accepts. Automaton has 41 states and 40 transitions. Word has length 20 [2018-09-21 18:09:39,912 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-21 18:09:39,913 INFO L480 AbstractCegarLoop]: Abstraction has 41 states and 40 transitions. [2018-09-21 18:09:39,913 INFO L481 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-09-21 18:09:39,913 INFO L276 IsEmpty]: Start isEmpty. Operand 41 states and 40 transitions. [2018-09-21 18:09:39,914 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2018-09-21 18:09:39,914 INFO L368 BasicCegarLoop]: Found error trace [2018-09-21 18:09:39,915 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] [2018-09-21 18:09:39,915 INFO L423 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-21 18:09:39,915 INFO L82 PathProgramCache]: Analyzing trace with hash -2108951456, now seen corresponding path program 1 times [2018-09-21 18:09:39,916 INFO L227 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-09-21 18:09:39,916 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 3 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2018-09-21 18:09:39,923 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY Waiting until toolchain timeout for monitored process 3 with mathsat -unsat_core_generation=3 [2018-09-21 18:09:40,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-09-21 18:09:40,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-09-21 18:09:40,224 INFO L443 BasicCegarLoop]: Counterexample might be feasible [2018-09-21 18:09:40,258 WARN L1243 BoogieBacktranslator]: Unfinished Backtranslation could not match function ~Plusoo~LONGDOUBLE [2018-09-21 18:09:40,260 WARN L1243 BoogieBacktranslator]: Unfinished Backtranslation could not match function ~Plusoo~LONGDOUBLE [2018-09-21 18:09:40,260 WARN L1243 BoogieBacktranslator]: Unfinished Backtranslation could not match function ~Plusoo~LONGDOUBLE [2018-09-21 18:09:40,260 WARN L1243 BoogieBacktranslator]: Unfinished Backtranslation could not match function ~Plusoo~LONGDOUBLE [2018-09-21 18:09:40,261 WARN L1243 BoogieBacktranslator]: Unfinished Backtranslation could not match function ~Plusoo~LONGDOUBLE [2018-09-21 18:09:40,261 WARN L1243 BoogieBacktranslator]: Unfinished Backtranslation could not match function ~Plusoo~LONGDOUBLE [2018-09-21 18:09:40,261 WARN L1243 BoogieBacktranslator]: Unfinished Backtranslation could not match function ~Plusoo~LONGDOUBLE [2018-09-21 18:09:40,262 WARN L1243 BoogieBacktranslator]: Unfinished Backtranslation could not match function ~Plusoo~LONGDOUBLE [2018-09-21 18:09:40,262 WARN L1243 BoogieBacktranslator]: Unfinished Backtranslation could not match function ~Plusoo~LONGDOUBLE [2018-09-21 18:09:40,262 WARN L1243 BoogieBacktranslator]: Unfinished Backtranslation could not match function ~Plusoo~LONGDOUBLE [2018-09-21 18:09:40,263 WARN L1243 BoogieBacktranslator]: Unfinished Backtranslation could not match function ~Plusoo~LONGDOUBLE [2018-09-21 18:09:40,263 WARN L1243 BoogieBacktranslator]: Unfinished Backtranslation could not match function ~Plusoo~LONGDOUBLE [2018-09-21 18:09:40,263 WARN L1243 BoogieBacktranslator]: Unfinished Backtranslation could not match function ~Plusoo~LONGDOUBLE [2018-09-21 18:09:40,263 WARN L1243 BoogieBacktranslator]: Unfinished Backtranslation could not match function ~Plusoo~LONGDOUBLE [2018-09-21 18:09:40,264 WARN L1243 BoogieBacktranslator]: Unfinished Backtranslation could not match function ~Plusoo~LONGDOUBLE [2018-09-21 18:09:40,264 WARN L1243 BoogieBacktranslator]: Unfinished Backtranslation could not match function ~Plusoo~LONGDOUBLE [2018-09-21 18:09:40,273 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.09 06:09:40 BoogieIcfgContainer [2018-09-21 18:09:40,273 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-09-21 18:09:40,273 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-09-21 18:09:40,274 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-09-21 18:09:40,274 INFO L276 PluginConnector]: Witness Printer initialized [2018-09-21 18:09:40,274 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.09 06:09:39" (3/4) ... [2018-09-21 18:09:40,278 INFO L138 WitnessPrinter]: Generating witness for reachability counterexample [2018-09-21 18:09:40,284 WARN L1243 BoogieBacktranslator]: Unfinished Backtranslation could not match function ~Plusoo~LONGDOUBLE [2018-09-21 18:09:40,285 WARN L1243 BoogieBacktranslator]: Unfinished Backtranslation could not match function ~Plusoo~LONGDOUBLE [2018-09-21 18:09:40,285 WARN L1243 BoogieBacktranslator]: Unfinished Backtranslation could not match function ~Plusoo~LONGDOUBLE [2018-09-21 18:09:40,285 WARN L1243 BoogieBacktranslator]: Unfinished Backtranslation could not match function ~Plusoo~LONGDOUBLE [2018-09-21 18:09:40,285 WARN L1243 BoogieBacktranslator]: Unfinished Backtranslation could not match function ~Plusoo~LONGDOUBLE [2018-09-21 18:09:40,286 WARN L1243 BoogieBacktranslator]: Unfinished Backtranslation could not match function ~Plusoo~LONGDOUBLE [2018-09-21 18:09:40,286 WARN L1243 BoogieBacktranslator]: Unfinished Backtranslation could not match function ~Plusoo~LONGDOUBLE [2018-09-21 18:09:40,286 WARN L1243 BoogieBacktranslator]: Unfinished Backtranslation could not match function ~Plusoo~LONGDOUBLE [2018-09-21 18:09:40,287 WARN L1243 BoogieBacktranslator]: Unfinished Backtranslation could not match function ~Plusoo~LONGDOUBLE [2018-09-21 18:09:40,287 WARN L1243 BoogieBacktranslator]: Unfinished Backtranslation could not match function ~Plusoo~LONGDOUBLE [2018-09-21 18:09:40,287 WARN L1243 BoogieBacktranslator]: Unfinished Backtranslation could not match function ~Plusoo~LONGDOUBLE [2018-09-21 18:09:40,287 WARN L1243 BoogieBacktranslator]: Unfinished Backtranslation could not match function ~Plusoo~LONGDOUBLE [2018-09-21 18:09:40,287 WARN L1243 BoogieBacktranslator]: Unfinished Backtranslation could not match function ~Plusoo~LONGDOUBLE [2018-09-21 18:09:40,288 WARN L1243 BoogieBacktranslator]: Unfinished Backtranslation could not match function ~Plusoo~LONGDOUBLE [2018-09-21 18:09:40,288 WARN L1243 BoogieBacktranslator]: Unfinished Backtranslation could not match function ~Plusoo~LONGDOUBLE [2018-09-21 18:09:40,288 WARN L1243 BoogieBacktranslator]: Unfinished Backtranslation could not match function ~Plusoo~LONGDOUBLE [2018-09-21 18:09:40,358 INFO L145 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2018-09-21 18:09:40,358 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-09-21 18:09:40,359 INFO L168 Benchmark]: Toolchain (without parser) took 2242.77 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 140.0 MB). Free memory was 951.9 MB in the beginning and 1.1 GB in the end (delta: -117.1 MB). Peak memory consumption was 22.9 MB. Max. memory is 11.5 GB. [2018-09-21 18:09:40,361 INFO L168 Benchmark]: CDTParser took 0.22 ms. Allocated memory is still 1.0 GB. Free memory is still 978.7 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-09-21 18:09:40,362 INFO L168 Benchmark]: CACSL2BoogieTranslator took 448.28 ms. Allocated memory is still 1.0 GB. Free memory was 951.9 MB in the beginning and 941.1 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2018-09-21 18:09:40,363 INFO L168 Benchmark]: Boogie Preprocessor took 51.44 ms. Allocated memory is still 1.0 GB. Free memory is still 941.1 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-09-21 18:09:40,363 INFO L168 Benchmark]: RCFGBuilder took 932.55 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 140.0 MB). Free memory was 935.7 MB in the beginning and 1.1 GB in the end (delta: -177.8 MB). Peak memory consumption was 22.2 MB. Max. memory is 11.5 GB. [2018-09-21 18:09:40,364 INFO L168 Benchmark]: TraceAbstraction took 719.02 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: 37.5 MB). Peak memory consumption was 37.5 MB. Max. memory is 11.5 GB. [2018-09-21 18:09:40,365 INFO L168 Benchmark]: Witness Printer took 84.64 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. [2018-09-21 18:09:40,368 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22 ms. Allocated memory is still 1.0 GB. Free memory is still 978.7 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 448.28 ms. Allocated memory is still 1.0 GB. Free memory was 951.9 MB in the beginning and 941.1 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 51.44 ms. Allocated memory is still 1.0 GB. Free memory is still 941.1 MB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 932.55 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 140.0 MB). Free memory was 935.7 MB in the beginning and 1.1 GB in the end (delta: -177.8 MB). Peak memory consumption was 22.2 MB. Max. memory is 11.5 GB. * TraceAbstraction took 719.02 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: 37.5 MB). Peak memory consumption was 37.5 MB. Max. memory is 11.5 GB. * Witness Printer took 84.64 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.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation Unfinished Backtranslation could not match function ~Plusoo~LONGDOUBLE - GenericResult: Unfinished Backtranslation Unfinished Backtranslation could not match function ~Plusoo~LONGDOUBLE - GenericResult: Unfinished Backtranslation Unfinished Backtranslation could not match function ~Plusoo~LONGDOUBLE - GenericResult: Unfinished Backtranslation Unfinished Backtranslation could not match function ~Plusoo~LONGDOUBLE - GenericResult: Unfinished Backtranslation Unfinished Backtranslation could not match function ~Plusoo~LONGDOUBLE - GenericResult: Unfinished Backtranslation Unfinished Backtranslation could not match function ~Plusoo~LONGDOUBLE - GenericResult: Unfinished Backtranslation Unfinished Backtranslation could not match function ~Plusoo~LONGDOUBLE - GenericResult: Unfinished Backtranslation Unfinished Backtranslation could not match function ~Plusoo~LONGDOUBLE - GenericResult: Unfinished Backtranslation Unfinished Backtranslation could not match function ~Plusoo~LONGDOUBLE - GenericResult: Unfinished Backtranslation Unfinished Backtranslation could not match function ~Plusoo~LONGDOUBLE - GenericResult: Unfinished Backtranslation Unfinished Backtranslation could not match function ~Plusoo~LONGDOUBLE - GenericResult: Unfinished Backtranslation Unfinished Backtranslation could not match function ~Plusoo~LONGDOUBLE - GenericResult: Unfinished Backtranslation Unfinished Backtranslation could not match function ~Plusoo~LONGDOUBLE - GenericResult: Unfinished Backtranslation Unfinished Backtranslation could not match function ~Plusoo~LONGDOUBLE - GenericResult: Unfinished Backtranslation Unfinished Backtranslation could not match function ~Plusoo~LONGDOUBLE - GenericResult: Unfinished Backtranslation Unfinished Backtranslation could not match function ~Plusoo~LONGDOUBLE - GenericResult: Unfinished Backtranslation Unfinished Backtranslation could not match function ~Plusoo~LONGDOUBLE - GenericResult: Unfinished Backtranslation Unfinished Backtranslation could not match function ~Plusoo~LONGDOUBLE - GenericResult: Unfinished Backtranslation Unfinished Backtranslation could not match function ~Plusoo~LONGDOUBLE - GenericResult: Unfinished Backtranslation Unfinished Backtranslation could not match function ~Plusoo~LONGDOUBLE - GenericResult: Unfinished Backtranslation Unfinished Backtranslation could not match function ~Plusoo~LONGDOUBLE - GenericResult: Unfinished Backtranslation Unfinished Backtranslation could not match function ~Plusoo~LONGDOUBLE - GenericResult: Unfinished Backtranslation Unfinished Backtranslation could not match function ~Plusoo~LONGDOUBLE - GenericResult: Unfinished Backtranslation Unfinished Backtranslation could not match function ~Plusoo~LONGDOUBLE - GenericResult: Unfinished Backtranslation Unfinished Backtranslation could not match function ~Plusoo~LONGDOUBLE - GenericResult: Unfinished Backtranslation Unfinished Backtranslation could not match function ~Plusoo~LONGDOUBLE - GenericResult: Unfinished Backtranslation Unfinished Backtranslation could not match function ~Plusoo~LONGDOUBLE - GenericResult: Unfinished Backtranslation Unfinished Backtranslation could not match function ~Plusoo~LONGDOUBLE - GenericResult: Unfinished Backtranslation Unfinished Backtranslation could not match function ~Plusoo~LONGDOUBLE - GenericResult: Unfinished Backtranslation Unfinished Backtranslation could not match function ~Plusoo~LONGDOUBLE - GenericResult: Unfinished Backtranslation Unfinished Backtranslation could not match function ~Plusoo~LONGDOUBLE - GenericResult: Unfinished Backtranslation Unfinished Backtranslation could not match function ~Plusoo~LONGDOUBLE * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 55]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L50] double x = 0.0 / 0.0; VAL [x=NaN] [L51] CALL, EXPR fabs_double(x) VAL [\old(x)=NaN] [L29] __uint32_t high; VAL [\old(x)=NaN, x=NaN] [L31] FCALL ieee_double_shape_type gh_u; VAL [\old(x)=NaN, gh_u={2:0}, x=NaN] [L32] FCALL gh_u.value = (x) VAL [\old(x)=NaN, gh_u={2:0}, x=NaN] [L33] EXPR, FCALL gh_u.parts.msw VAL [\old(x)=NaN, gh_u={2:0}, gh_u.parts.msw=2146435072, x=NaN] [L33] (high) = gh_u.parts.msw VAL [\old(x)=NaN, gh_u={2:0}, gh_u.parts.msw=2146435072, high=2146435072, x=NaN] [L33] FCALL (high) = gh_u.parts.msw VAL [(high) = gh_u.parts.msw=NaN, \old(x)=NaN, gh_u={2:0}, gh_u.parts.msw=2146435072, high=2146435072, x=NaN] [L34] COND FALSE !(0) VAL [\old(x)=NaN, high=2146435072, x=NaN] [L36] FCALL ieee_double_shape_type sh_u; VAL [\old(x)=NaN, high=2146435072, sh_u={3:0}, x=NaN] [L37] FCALL sh_u.value = (x) VAL [\old(x)=NaN, high=2146435072, sh_u={3:0}, x=NaN] [L38] FCALL sh_u.parts.msw = (high & 0x7fffffff) VAL [\old(x)=NaN, high=2146435072, sh_u={3:0}, x=NaN] [L39] EXPR, FCALL sh_u.value VAL [\old(x)=NaN, high=2146435072, sh_u={3:0}, x=NaN] [L39] (x) = sh_u.value VAL [\old(x)=NaN, high=2146435072, sh_u={3:0}] [L39] FCALL (x) = sh_u.value VAL [(x) = sh_u.value=0, \old(x)=NaN, high=2146435072, sh_u={3:0}] [L39] FCALL (x) = sh_u.value VAL [(x) = sh_u.value=262144, (x) = sh_u.value=0, \old(x)=NaN, high=2146435072, sh_u={3:0}] [L40] COND FALSE !(0) VAL [\old(x)=NaN, high=2146435072] [L41] RET return x; VAL [\old(x)=NaN, high=2146435072] [L51] EXPR fabs_double(x) VAL [x=NaN] [L51] double res = fabs_double(x); [L54] CALL, EXPR isnan_double(res) [L15] RET return x != x; VAL [\result=0] [L54] EXPR isnan_double(res) VAL [isnan_double(res)=0, x=NaN] [L54] COND TRUE !isnan_double(res) [L55] __VERIFIER_error() VAL [x=NaN] - StatisticsResult: Ultimate Automizer benchmark data CFG has 6 procedures, 59 locations, 1 error locations. UNSAFE Result, 0.6s OverallTime, 2 OverallIterations, 1 TraceHistogramMax, 0.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 44 SDtfs, 0 SDslu, 0 SDs, 0 SdLazy, 0 SolverSat, 0 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 19 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=45occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s AbstIntTime, 0 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 60 NumberOfCodeBlocks, 60 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 19 ConstructedInterpolants, 0 QuantifiedInterpolants, 361 SizeOfPredicates, 0 NumberOfNonLiveVariables, 45 ConjunctsInSsa, 1 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! Received shutdown request...