/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/Ultimate.py --spec ../../../trunk/examples/svcomp/ReachSafety.prp --file ../../../trunk/examples/svcomp/float-newlib/double_req_bl_1052b_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_1052b_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 62b7dc6392161c86b172facfcbc82e25c42dc2f4 --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_1052b_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 62b7dc6392161c86b172facfcbc82e25c42dc2f4 --traceabstraction.compute.hoare.annotation.of.negated.interpolant.automaton,.abstraction.and.cfg false ...................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.23-5eb3fea [2018-09-21 18:10:32,207 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-09-21 18:10:32,209 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-09-21 18:10:32,221 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-09-21 18:10:32,222 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-09-21 18:10:32,223 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-09-21 18:10:32,224 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-09-21 18:10:32,226 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-09-21 18:10:32,228 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-09-21 18:10:32,229 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-09-21 18:10:32,230 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-09-21 18:10:32,230 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-09-21 18:10:32,232 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-09-21 18:10:32,233 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-09-21 18:10:32,234 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-09-21 18:10:32,235 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-09-21 18:10:32,236 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-09-21 18:10:32,238 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-09-21 18:10:32,240 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-09-21 18:10:32,241 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-09-21 18:10:32,243 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-09-21 18:10:32,244 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-09-21 18:10:32,247 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-09-21 18:10:32,247 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-09-21 18:10:32,247 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-09-21 18:10:32,248 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-09-21 18:10:32,249 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-09-21 18:10:32,250 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-09-21 18:10:32,251 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-09-21 18:10:32,253 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-09-21 18:10:32,253 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-09-21 18:10:32,254 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-09-21 18:10:32,254 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-09-21 18:10:32,254 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-09-21 18:10:32,256 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-09-21 18:10:32,256 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-09-21 18:10:32,257 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2018-09-21 18:10:32,273 INFO L110 SettingsManager]: Loading preferences was successful [2018-09-21 18:10:32,273 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-09-21 18:10:32,274 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-09-21 18:10:32,274 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-09-21 18:10:32,275 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-09-21 18:10:32,275 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-09-21 18:10:32,276 INFO L133 SettingsManager]: * Use SBE=true [2018-09-21 18:10:32,276 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-09-21 18:10:32,276 INFO L133 SettingsManager]: * sizeof long=4 [2018-09-21 18:10:32,276 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-09-21 18:10:32,277 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-09-21 18:10:32,277 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-09-21 18:10:32,277 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-09-21 18:10:32,277 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-09-21 18:10:32,277 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-09-21 18:10:32,278 INFO L133 SettingsManager]: * sizeof long double=12 [2018-09-21 18:10:32,278 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-09-21 18:10:32,278 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-09-21 18:10:32,278 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-09-21 18:10:32,279 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-09-21 18:10:32,279 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-09-21 18:10:32,279 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-09-21 18:10:32,279 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-09-21 18:10:32,280 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-09-21 18:10:32,280 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-09-21 18:10:32,280 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-09-21 18:10:32,280 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-09-21 18:10:32,281 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-09-21 18:10:32,281 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-09-21 18:10:32,281 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 -> 62b7dc6392161c86b172facfcbc82e25c42dc2f4 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 18:10:32,346 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-09-21 18:10:32,360 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-09-21 18:10:32,364 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-09-21 18:10:32,366 INFO L271 PluginConnector]: Initializing CDTParser... [2018-09-21 18:10:32,366 INFO L276 PluginConnector]: CDTParser initialized [2018-09-21 18:10:32,367 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/float-newlib/double_req_bl_1052b_true-unreach-call.c [2018-09-21 18:10:32,755 INFO L221 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e149b4a6f/efaf203d21d644eeaf7db09073c14094/FLAG948575aff [2018-09-21 18:10:32,954 INFO L277 CDTParser]: Found 1 translation units. [2018-09-21 18:10:32,954 INFO L159 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/float-newlib/double_req_bl_1052b_true-unreach-call.c [2018-09-21 18:10:32,962 INFO L325 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e149b4a6f/efaf203d21d644eeaf7db09073c14094/FLAG948575aff [2018-09-21 18:10:32,979 INFO L333 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e149b4a6f/efaf203d21d644eeaf7db09073c14094 [2018-09-21 18:10:32,982 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-09-21 18:10:32,985 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-09-21 18:10:32,986 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-09-21 18:10:32,987 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-09-21 18:10:32,994 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-09-21 18:10:32,995 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.09 06:10:32" (1/1) ... [2018-09-21 18:10:32,998 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@24653c0c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 06:10:32, skipping insertion in model container [2018-09-21 18:10:32,998 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.09 06:10:32" (1/1) ... [2018-09-21 18:10:33,010 INFO L160 ieTranslatorObserver]: Starting translation in SV-COMP mode [2018-09-21 18:10:33,275 INFO L170 PostProcessor]: Settings: Checked method=main [2018-09-21 18:10:33,311 INFO L424 MainDispatcher]: Starting main dispatcher in SV-COMP mode [2018-09-21 18:10:33,364 INFO L170 PostProcessor]: Settings: Checked method=main [2018-09-21 18:10:33,424 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 06:10:33 WrapperNode [2018-09-21 18:10:33,425 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-09-21 18:10:33,425 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-09-21 18:10:33,426 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-09-21 18:10:33,426 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-09-21 18:10:33,443 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 06:10:33" (1/1) ... [2018-09-21 18:10:33,443 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 06:10:33" (1/1) ... [2018-09-21 18:10:33,465 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 06:10:33" (1/1) ... [2018-09-21 18:10:33,468 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 06:10:33" (1/1) ... [2018-09-21 18:10:33,486 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 06:10:33" (1/1) ... [2018-09-21 18:10:33,503 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 06:10:33" (1/1) ... [2018-09-21 18:10:33,506 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 06:10:33" (1/1) ... [2018-09-21 18:10:33,513 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-09-21 18:10:33,516 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-09-21 18:10:33,516 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-09-21 18:10:33,516 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-09-21 18:10:33,517 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 06:10:33" (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 18:10:33,661 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-09-21 18:10:33,662 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-09-21 18:10:33,662 INFO L138 BoogieDeclarations]: Found implementation of procedure floor_double [2018-09-21 18:10:33,662 INFO L138 BoogieDeclarations]: Found implementation of procedure isinf_double [2018-09-21 18:10:33,662 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-09-21 18:10:33,663 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2018-09-21 18:10:33,663 INFO L130 BoogieDeclarations]: Found specification of procedure floor_double [2018-09-21 18:10:33,663 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-09-21 18:10:33,663 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2018-09-21 18:10:33,663 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2018-09-21 18:10:33,663 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-09-21 18:10:33,664 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2018-09-21 18:10:33,664 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2018-09-21 18:10:33,664 INFO L130 BoogieDeclarations]: Found specification of procedure isinf_double [2018-09-21 18:10:33,664 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-09-21 18:10:33,664 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-09-21 18:10:33,664 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-09-21 18:10:33,665 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2018-09-21 18:10:33,665 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~real [2018-09-21 18:10:34,421 INFO L373 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-09-21 18:10:34,422 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.09 06:10:34 BoogieIcfgContainer [2018-09-21 18:10:34,422 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-09-21 18:10:34,424 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-09-21 18:10:34,424 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-09-21 18:10:34,428 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-09-21 18:10:34,429 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.09 06:10:32" (1/3) ... [2018-09-21 18:10:34,430 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6d53e54c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.09 06:10:34, skipping insertion in model container [2018-09-21 18:10:34,430 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 06:10:33" (2/3) ... [2018-09-21 18:10:34,430 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6d53e54c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.09 06:10:34, skipping insertion in model container [2018-09-21 18:10:34,430 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.09 06:10:34" (3/3) ... [2018-09-21 18:10:34,432 INFO L112 eAbstractionObserver]: Analyzing ICFG double_req_bl_1052b_true-unreach-call.c [2018-09-21 18:10:34,442 INFO L137 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-09-21 18:10:34,458 INFO L149 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-09-21 18:10:34,501 INFO L130 ementStrategyFactory]: Using default assertion order modulation [2018-09-21 18:10:34,502 INFO L381 AbstractCegarLoop]: Interprodecural is true [2018-09-21 18:10:34,502 INFO L382 AbstractCegarLoop]: Hoare is false [2018-09-21 18:10:34,502 INFO L383 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-09-21 18:10:34,502 INFO L384 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-09-21 18:10:34,502 INFO L385 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-09-21 18:10:34,503 INFO L386 AbstractCegarLoop]: Difference is false [2018-09-21 18:10:34,503 INFO L387 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-09-21 18:10:34,503 INFO L392 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-09-21 18:10:34,524 INFO L276 IsEmpty]: Start isEmpty. Operand 84 states. [2018-09-21 18:10:34,547 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2018-09-21 18:10:34,548 INFO L368 BasicCegarLoop]: Found error trace [2018-09-21 18:10:34,549 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] [2018-09-21 18:10:34,553 INFO L423 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-21 18:10:34,559 INFO L82 PathProgramCache]: Analyzing trace with hash -1352860083, now seen corresponding path program 1 times [2018-09-21 18:10:34,561 INFO L227 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-09-21 18:10:34,562 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-09-21 18:10:34,606 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-21 18:10:34,606 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-21 18:10:34,607 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-21 18:10:34,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-21 18:10:34,709 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 18:10:34,713 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-21 18:10:34,713 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-09-21 18:10:34,719 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-09-21 18:10:34,736 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-09-21 18:10:34,738 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-09-21 18:10:34,741 INFO L87 Difference]: Start difference. First operand 84 states. Second operand 2 states. [2018-09-21 18:10:34,766 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-21 18:10:34,767 INFO L93 Difference]: Finished difference Result 84 states and 98 transitions. [2018-09-21 18:10:34,767 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-09-21 18:10:34,769 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 25 [2018-09-21 18:10:34,769 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-21 18:10:34,782 INFO L225 Difference]: With dead ends: 84 [2018-09-21 18:10:34,782 INFO L226 Difference]: Without dead ends: 80 [2018-09-21 18:10:34,784 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 18:10:34,801 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 80 states. [2018-09-21 18:10:34,823 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 80 to 80. [2018-09-21 18:10:34,824 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 80 states. [2018-09-21 18:10:34,827 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 80 states to 80 states and 94 transitions. [2018-09-21 18:10:34,828 INFO L78 Accepts]: Start accepts. Automaton has 80 states and 94 transitions. Word has length 25 [2018-09-21 18:10:34,829 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-21 18:10:34,829 INFO L480 AbstractCegarLoop]: Abstraction has 80 states and 94 transitions. [2018-09-21 18:10:34,829 INFO L481 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-09-21 18:10:34,829 INFO L276 IsEmpty]: Start isEmpty. Operand 80 states and 94 transitions. [2018-09-21 18:10:34,832 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2018-09-21 18:10:34,832 INFO L368 BasicCegarLoop]: Found error trace [2018-09-21 18:10:34,833 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] [2018-09-21 18:10:34,833 INFO L423 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-21 18:10:34,834 INFO L82 PathProgramCache]: Analyzing trace with hash -91744177, now seen corresponding path program 1 times [2018-09-21 18:10:34,834 INFO L227 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-09-21 18:10:34,834 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-09-21 18:10:34,836 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-21 18:10:34,836 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-21 18:10:34,836 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-21 18:10:34,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-09-21 18:10:35,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-09-21 18:10:35,109 INFO L443 BasicCegarLoop]: Counterexample might be feasible [2018-09-21 18:10:35,185 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.09 06:10:35 BoogieIcfgContainer [2018-09-21 18:10:35,185 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-09-21 18:10:35,185 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-09-21 18:10:35,185 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-09-21 18:10:35,190 INFO L276 PluginConnector]: Witness Printer initialized [2018-09-21 18:10:35,191 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.09 06:10:34" (3/4) ... [2018-09-21 18:10:35,199 INFO L147 WitnessPrinter]: No result that supports witness generation found [2018-09-21 18:10:35,201 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-09-21 18:10:35,203 INFO L168 Benchmark]: Toolchain (without parser) took 2219.68 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 143.7 MB). Free memory was 951.9 MB in the beginning and 1.1 GB in the end (delta: -118.7 MB). Peak memory consumption was 25.0 MB. Max. memory is 11.5 GB. [2018-09-21 18:10:35,206 INFO L168 Benchmark]: CDTParser took 0.19 ms. Allocated memory is still 1.0 GB. Free memory is still 978.7 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-09-21 18:10:35,207 INFO L168 Benchmark]: CACSL2BoogieTranslator took 438.61 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 18:10:35,209 INFO L168 Benchmark]: Boogie Preprocessor took 89.91 ms. Allocated memory is still 1.0 GB. Free memory was 941.1 MB in the beginning and 935.8 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. [2018-09-21 18:10:35,211 INFO L168 Benchmark]: RCFGBuilder took 907.26 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 143.7 MB). Free memory was 935.8 MB in the beginning and 1.1 GB in the end (delta: -168.5 MB). Peak memory consumption was 16.7 MB. Max. memory is 11.5 GB. [2018-09-21 18:10:35,213 INFO L168 Benchmark]: TraceAbstraction took 760.78 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 33.8 MB). Peak memory consumption was 33.8 MB. Max. memory is 11.5 GB. [2018-09-21 18:10:35,214 INFO L168 Benchmark]: Witness Printer took 16.21 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 18:10:35,222 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19 ms. Allocated memory is still 1.0 GB. Free memory is still 978.7 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 438.61 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 89.91 ms. Allocated memory is still 1.0 GB. Free memory was 941.1 MB in the beginning and 935.8 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. * RCFGBuilder took 907.26 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 143.7 MB). Free memory was 935.8 MB in the beginning and 1.1 GB in the end (delta: -168.5 MB). Peak memory consumption was 16.7 MB. Max. memory is 11.5 GB. * TraceAbstraction took 760.78 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 33.8 MB). Peak memory consumption was 33.8 MB. Max. memory is 11.5 GB. * Witness Printer took 16.21 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: 106]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: overapproximation of shiftRight at line 37, overapproximation of bitwiseOr at line 89, overapproximation of someBinaryArithmeticDOUBLEoperation at line 101, overapproximation of bitwiseAnd at line 88. Possible FailurePath: [L14] static const double huge_floor = 1.0e300; VAL [\old(huge_floor)=10737418245, huge_floor=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000] [L101] double x = -1.0 / 0.0; VAL [huge_floor=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000] [L102] CALL, EXPR floor_double(x) VAL [\old(x)=10737418249, huge_floor=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000] [L17] __int32_t i0, i1, j0; [L18] __uint32_t i, j; VAL [\old(x)=10737418249, huge_floor=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, x=10737418249] [L20] FCALL ieee_double_shape_type ew_u; VAL [\old(x)=10737418249, ew_u={10737418246:0}, huge_floor=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, x=10737418249] [L21] FCALL ew_u.value = (x) VAL [\old(x)=10737418249, ew_u={10737418246:0}, huge_floor=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, x=10737418249] [L22] EXPR, FCALL ew_u.parts.msw VAL [\old(x)=10737418249, ew_u={10737418246:0}, ew_u.parts.msw=3, huge_floor=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, x=10737418249] [L22] (i0) = ew_u.parts.msw VAL [\old(x)=10737418249, ew_u={10737418246:0}, ew_u.parts.msw=3, huge_floor=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, i0=3, x=10737418249] [L22] FCALL (i0) = ew_u.parts.msw VAL [(i0) = ew_u.parts.msw=10737418248, \old(x)=10737418249, ew_u={10737418246:0}, ew_u.parts.msw=3, huge_floor=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, i0=3, x=10737418249] [L23] EXPR, FCALL ew_u.parts.lsw VAL [\old(x)=10737418249, ew_u={10737418246:0}, ew_u.parts.lsw=6442450944, huge_floor=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, i0=3, x=10737418249] [L23] (i1) = ew_u.parts.lsw VAL [\old(x)=10737418249, ew_u={10737418246:0}, ew_u.parts.lsw=6442450944, huge_floor=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, i0=3, i1=-2147483648, x=10737418249] [L23] FCALL (i1) = ew_u.parts.lsw VAL [(i1) = ew_u.parts.lsw=10737418249, \old(x)=10737418249, ew_u={10737418246:0}, ew_u.parts.lsw=6442450944, huge_floor=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, i0=3, i1=-2147483648, x=10737418249] [L24] COND FALSE !(0) VAL [\old(x)=10737418249, huge_floor=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, i0=3, i1=-2147483648, x=10737418249] [L25] j0 = ((i0 >> 20) & 0x7ff) - 0x3ff VAL [\old(x)=10737418249, huge_floor=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, i0=3, i1=-2147483648, x=10737418249] [L26] COND TRUE j0 < 20 VAL [\old(x)=10737418249, huge_floor=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, i0=3, i1=-2147483648, j0=0, x=10737418249] [L27] COND FALSE !(j0 < 0) [L37] i = (0x000fffff) >> j0 VAL [\old(x)=10737418249, huge_floor=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, i0=3, i1=-2147483648, j0=0, x=10737418249] [L38] COND TRUE ((i0 & i) | i1) == 0 [L39] RET return x; VAL [\old(x)=10737418249, \result=10737418249, huge_floor=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, i0=3, i1=-2147483648, j0=0, x=10737418249] [L102] EXPR floor_double(x) VAL [floor_double(x)=10737418249, huge_floor=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, x=10737418249] [L102] double res = floor_double(x); [L105] CALL, EXPR isinf_double(res) VAL [\old(x)=10737418249, huge_floor=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000] [L81] __int32_t hx, lx; VAL [\old(x)=10737418249, huge_floor=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, x=10737418249] [L83] FCALL ieee_double_shape_type ew_u; VAL [\old(x)=10737418249, ew_u={10737418242:0}, huge_floor=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, x=10737418249] [L84] FCALL ew_u.value = (x) VAL [\old(x)=10737418249, ew_u={10737418242:0}, huge_floor=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, x=10737418249] [L85] EXPR, FCALL ew_u.parts.msw VAL [\old(x)=10737418249, ew_u={10737418242:0}, ew_u.parts.msw=10737418240, huge_floor=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, x=10737418249] [L85] (hx) = ew_u.parts.msw VAL [\old(x)=10737418249, ew_u={10737418242:0}, ew_u.parts.msw=10737418240, huge_floor=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, hx=-2147483648, x=10737418249] [L85] FCALL (hx) = ew_u.parts.msw VAL [(hx) = ew_u.parts.msw=10737418244, \old(x)=10737418249, ew_u={10737418242:0}, ew_u.parts.msw=10737418240, huge_floor=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, hx=-2147483648, x=10737418249] [L86] EXPR, FCALL ew_u.parts.lsw VAL [\old(x)=10737418249, ew_u={10737418242:0}, ew_u.parts.lsw=6442450943, huge_floor=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, hx=-2147483648, x=10737418249] [L86] (lx) = ew_u.parts.lsw VAL [\old(x)=10737418249, ew_u={10737418242:0}, ew_u.parts.lsw=6442450943, huge_floor=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, hx=-2147483648, lx=2147483647, x=10737418249] [L86] FCALL (lx) = ew_u.parts.lsw VAL [(lx) = ew_u.parts.lsw=10737418243, \old(x)=10737418249, ew_u={10737418242:0}, ew_u.parts.lsw=6442450943, huge_floor=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, hx=-2147483648, lx=2147483647, x=10737418249] [L87] COND FALSE !(0) VAL [\old(x)=10737418249, huge_floor=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, hx=-2147483648, lx=2147483647, x=10737418249] [L88] hx &= 0x7fffffff [L89] hx |= (__uint32_t)(lx | (-lx)) >> 31 [L90] hx = 0x7ff00000 - hx [L91] RET return 1 - (int)((__uint32_t)(hx | (-hx)) >> 31); VAL [\old(x)=10737418249, \result=0, huge_floor=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, hx=2146435072, lx=2147483647, x=10737418249] [L105] EXPR isinf_double(res) VAL [huge_floor=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, isinf_double(res)=0, res=10737418249, x=10737418249] [L105] COND TRUE !isinf_double(res) [L106] __VERIFIER_error() VAL [huge_floor=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, res=10737418249, x=10737418249] - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 84 locations, 1 error locations. UNSAFE Result, 0.6s OverallTime, 2 OverallIterations, 1 TraceHistogramMax, 0.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 98 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=84occurred 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, 76 NumberOfCodeBlocks, 76 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 24 ConstructedInterpolants, 0 QuantifiedInterpolants, 576 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 18:10:37,627 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-09-21 18:10:37,631 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-09-21 18:10:37,649 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-09-21 18:10:37,649 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-09-21 18:10:37,653 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-09-21 18:10:37,654 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-09-21 18:10:37,657 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-09-21 18:10:37,659 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-09-21 18:10:37,661 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-09-21 18:10:37,661 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-09-21 18:10:37,662 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-09-21 18:10:37,663 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-09-21 18:10:37,664 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-09-21 18:10:37,665 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-09-21 18:10:37,666 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-09-21 18:10:37,667 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-09-21 18:10:37,669 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-09-21 18:10:37,672 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-09-21 18:10:37,673 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-09-21 18:10:37,675 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-09-21 18:10:37,676 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-09-21 18:10:37,679 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-09-21 18:10:37,679 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-09-21 18:10:37,679 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-09-21 18:10:37,681 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-09-21 18:10:37,682 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-09-21 18:10:37,683 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-09-21 18:10:37,684 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-09-21 18:10:37,685 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-09-21 18:10:37,686 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-09-21 18:10:37,687 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-09-21 18:10:37,687 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-09-21 18:10:37,687 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-09-21 18:10:37,688 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-09-21 18:10:37,690 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-09-21 18:10:37,690 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2018-09-21 18:10:37,706 INFO L110 SettingsManager]: Loading preferences was successful [2018-09-21 18:10:37,707 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-09-21 18:10:37,707 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-09-21 18:10:37,708 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-09-21 18:10:37,708 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-09-21 18:10:37,708 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-09-21 18:10:37,709 INFO L133 SettingsManager]: * Use SBE=true [2018-09-21 18:10:37,709 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-09-21 18:10:37,709 INFO L133 SettingsManager]: * sizeof long=4 [2018-09-21 18:10:37,709 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-09-21 18:10:37,709 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-09-21 18:10:37,710 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-09-21 18:10:37,710 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-09-21 18:10:37,710 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-09-21 18:10:37,710 INFO L133 SettingsManager]: * Use bitvectors instead of ints=true [2018-09-21 18:10:37,710 INFO L133 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2018-09-21 18:10:37,712 INFO L133 SettingsManager]: * sizeof long double=12 [2018-09-21 18:10:37,712 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-09-21 18:10:37,712 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-09-21 18:10:37,713 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-09-21 18:10:37,713 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-09-21 18:10:37,713 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-09-21 18:10:37,713 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-09-21 18:10:37,714 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-09-21 18:10:37,714 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-09-21 18:10:37,714 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-09-21 18:10:37,715 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-09-21 18:10:37,715 INFO L133 SettingsManager]: * Trace refinement strategy=WOLF [2018-09-21 18:10:37,715 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-09-21 18:10:37,715 INFO L133 SettingsManager]: * Command for external solver=cvc4nyu --tear-down-incremental --rewrite-divk --print-success --lang smt [2018-09-21 18:10:37,716 INFO L133 SettingsManager]: * Logic for external solver=AUFBV [2018-09-21 18:10:37,716 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 -> 62b7dc6392161c86b172facfcbc82e25c42dc2f4 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 18:10:37,787 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-09-21 18:10:37,799 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-09-21 18:10:37,803 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-09-21 18:10:37,805 INFO L271 PluginConnector]: Initializing CDTParser... [2018-09-21 18:10:37,805 INFO L276 PluginConnector]: CDTParser initialized [2018-09-21 18:10:37,806 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/float-newlib/double_req_bl_1052b_true-unreach-call.c [2018-09-21 18:10:38,158 INFO L221 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f4884c2fb/ef5d58893c86435e8edd509d8c032c70/FLAG67c3ef31b [2018-09-21 18:10:38,309 INFO L277 CDTParser]: Found 1 translation units. [2018-09-21 18:10:38,310 INFO L159 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/float-newlib/double_req_bl_1052b_true-unreach-call.c [2018-09-21 18:10:38,318 INFO L325 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f4884c2fb/ef5d58893c86435e8edd509d8c032c70/FLAG67c3ef31b [2018-09-21 18:10:38,342 INFO L333 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f4884c2fb/ef5d58893c86435e8edd509d8c032c70 [2018-09-21 18:10:38,345 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-09-21 18:10:38,348 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-09-21 18:10:38,350 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-09-21 18:10:38,350 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-09-21 18:10:38,357 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-09-21 18:10:38,358 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.09 06:10:38" (1/1) ... [2018-09-21 18:10:38,361 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7a060c7a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 06:10:38, skipping insertion in model container [2018-09-21 18:10:38,362 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.09 06:10:38" (1/1) ... [2018-09-21 18:10:38,374 INFO L160 ieTranslatorObserver]: Starting translation in SV-COMP mode [2018-09-21 18:10:38,640 INFO L170 PostProcessor]: Settings: Checked method=main [2018-09-21 18:10:38,668 INFO L424 MainDispatcher]: Starting main dispatcher in SV-COMP mode [2018-09-21 18:10:38,729 INFO L170 PostProcessor]: Settings: Checked method=main [2018-09-21 18:10:38,776 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 06:10:38 WrapperNode [2018-09-21 18:10:38,776 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-09-21 18:10:38,780 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-09-21 18:10:38,780 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-09-21 18:10:38,780 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-09-21 18:10:38,798 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 06:10:38" (1/1) ... [2018-09-21 18:10:38,799 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 06:10:38" (1/1) ... [2018-09-21 18:10:38,814 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 06:10:38" (1/1) ... [2018-09-21 18:10:38,814 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 06:10:38" (1/1) ... [2018-09-21 18:10:38,824 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 06:10:38" (1/1) ... [2018-09-21 18:10:38,830 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 06:10:38" (1/1) ... [2018-09-21 18:10:38,833 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 06:10:38" (1/1) ... [2018-09-21 18:10:38,838 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-09-21 18:10:38,839 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-09-21 18:10:38,839 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-09-21 18:10:38,839 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-09-21 18:10:38,840 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 06:10:38" (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 18:10:38,983 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-09-21 18:10:38,984 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-09-21 18:10:38,984 INFO L138 BoogieDeclarations]: Found implementation of procedure floor_double [2018-09-21 18:10:38,984 INFO L138 BoogieDeclarations]: Found implementation of procedure isinf_double [2018-09-21 18:10:38,984 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-09-21 18:10:38,984 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2018-09-21 18:10:38,985 INFO L130 BoogieDeclarations]: Found specification of procedure floor_double [2018-09-21 18:10:38,985 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-09-21 18:10:38,985 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE8 [2018-09-21 18:10:38,985 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2018-09-21 18:10:38,985 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-09-21 18:10:38,985 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2018-09-21 18:10:38,985 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE8 [2018-09-21 18:10:38,986 INFO L130 BoogieDeclarations]: Found specification of procedure isinf_double [2018-09-21 18:10:38,986 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-09-21 18:10:38,986 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-09-21 18:10:38,986 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-09-21 18:10:38,986 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intFLOATTYPE8 [2018-09-21 18:10:38,987 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE4 [2018-09-21 18:10:39,195 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-21 18:10:39,250 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-21 18:10:39,305 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-21 18:10:39,823 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-21 18:10:39,842 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-21 18:10:39,875 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-21 18:10:41,036 INFO L373 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-09-21 18:10:41,037 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.09 06:10:41 BoogieIcfgContainer [2018-09-21 18:10:41,037 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-09-21 18:10:41,038 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-09-21 18:10:41,038 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-09-21 18:10:41,042 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-09-21 18:10:41,042 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.09 06:10:38" (1/3) ... [2018-09-21 18:10:41,043 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@50586431 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.09 06:10:41, skipping insertion in model container [2018-09-21 18:10:41,043 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 06:10:38" (2/3) ... [2018-09-21 18:10:41,044 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@50586431 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.09 06:10:41, skipping insertion in model container [2018-09-21 18:10:41,044 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.09 06:10:41" (3/3) ... [2018-09-21 18:10:41,047 INFO L112 eAbstractionObserver]: Analyzing ICFG double_req_bl_1052b_true-unreach-call.c [2018-09-21 18:10:41,056 INFO L137 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-09-21 18:10:41,064 INFO L149 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-09-21 18:10:41,106 INFO L130 ementStrategyFactory]: Using default assertion order modulation [2018-09-21 18:10:41,107 INFO L381 AbstractCegarLoop]: Interprodecural is true [2018-09-21 18:10:41,107 INFO L382 AbstractCegarLoop]: Hoare is false [2018-09-21 18:10:41,108 INFO L383 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-09-21 18:10:41,108 INFO L384 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-09-21 18:10:41,108 INFO L385 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-09-21 18:10:41,108 INFO L386 AbstractCegarLoop]: Difference is false [2018-09-21 18:10:41,108 INFO L387 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-09-21 18:10:41,109 INFO L392 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-09-21 18:10:41,125 INFO L276 IsEmpty]: Start isEmpty. Operand 83 states. [2018-09-21 18:10:41,138 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2018-09-21 18:10:41,138 INFO L368 BasicCegarLoop]: Found error trace [2018-09-21 18:10:41,140 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] [2018-09-21 18:10:41,143 INFO L423 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-21 18:10:41,148 INFO L82 PathProgramCache]: Analyzing trace with hash 581408791, now seen corresponding path program 1 times [2018-09-21 18:10:41,154 INFO L227 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-09-21 18:10:41,155 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 18:10:41,166 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-21 18:10:41,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-21 18:10:41,253 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-21 18:10:41,277 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 18:10:41,277 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-09-21 18:10:41,292 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-21 18:10:41,293 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-09-21 18:10:41,296 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-09-21 18:10:41,309 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-09-21 18:10:41,310 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-09-21 18:10:41,312 INFO L87 Difference]: Start difference. First operand 83 states. Second operand 2 states. [2018-09-21 18:10:41,334 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-21 18:10:41,335 INFO L93 Difference]: Finished difference Result 83 states and 97 transitions. [2018-09-21 18:10:41,335 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-09-21 18:10:41,336 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 24 [2018-09-21 18:10:41,337 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-21 18:10:41,351 INFO L225 Difference]: With dead ends: 83 [2018-09-21 18:10:41,352 INFO L226 Difference]: Without dead ends: 79 [2018-09-21 18:10:41,354 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 23 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 18:10:41,373 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 79 states. [2018-09-21 18:10:41,394 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 79 to 79. [2018-09-21 18:10:41,396 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 79 states. [2018-09-21 18:10:41,399 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 79 states to 79 states and 93 transitions. [2018-09-21 18:10:41,400 INFO L78 Accepts]: Start accepts. Automaton has 79 states and 93 transitions. Word has length 24 [2018-09-21 18:10:41,401 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-21 18:10:41,401 INFO L480 AbstractCegarLoop]: Abstraction has 79 states and 93 transitions. [2018-09-21 18:10:41,401 INFO L481 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-09-21 18:10:41,401 INFO L276 IsEmpty]: Start isEmpty. Operand 79 states and 93 transitions. [2018-09-21 18:10:41,403 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2018-09-21 18:10:41,403 INFO L368 BasicCegarLoop]: Found error trace [2018-09-21 18:10:41,404 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] [2018-09-21 18:10:41,404 INFO L423 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-21 18:10:41,404 INFO L82 PathProgramCache]: Analyzing trace with hash 1677043250, now seen corresponding path program 1 times [2018-09-21 18:10:41,406 INFO L227 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-09-21 18:10:41,406 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 [2018-09-21 18:10:41,416 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-21 18:10:41,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-21 18:10:41,511 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-21 18:10:41,669 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 [2018-09-21 18:10:41,687 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 [2018-09-21 18:10:41,688 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-09-21 18:10:41,719 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-21 18:10:41,808 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. [2018-09-21 18:10:41,809 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:24, output treesize:20 [2018-09-21 18:10:41,862 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 [2018-09-21 18:10:41,869 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 [2018-09-21 18:10:41,870 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-09-21 18:10:41,874 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-21 18:10:41,886 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. [2018-09-21 18:10:41,886 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 4 variables, input treesize:29, output treesize:14 [2018-09-21 18:10:42,462 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 18:10:42,462 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-09-21 18:10:42,477 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-21 18:10:42,477 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2018-09-21 18:10:42,479 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-09-21 18:10:42,480 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-09-21 18:10:42,481 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2018-09-21 18:10:42,481 INFO L87 Difference]: Start difference. First operand 79 states and 93 transitions. Second operand 9 states. [2018-09-21 18:10:43,763 WARN L178 SmtUtils]: Spent 136.00 ms on a formula simplification that was a NOOP. DAG size: 30 [2018-09-21 18:10:48,910 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-21 18:10:48,911 INFO L93 Difference]: Finished difference Result 131 states and 142 transitions. [2018-09-21 18:10:48,913 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2018-09-21 18:10:48,913 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 50 [2018-09-21 18:10:48,914 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-21 18:10:48,919 INFO L225 Difference]: With dead ends: 131 [2018-09-21 18:10:48,919 INFO L226 Difference]: Without dead ends: 90 [2018-09-21 18:10:48,921 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 42 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 61 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=93, Invalid=327, Unknown=0, NotChecked=0, Total=420 [2018-09-21 18:10:48,921 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 90 states. [2018-09-21 18:10:48,929 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 90 to 71. [2018-09-21 18:10:48,929 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 71 states. [2018-09-21 18:10:48,931 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 71 states to 71 states and 77 transitions. [2018-09-21 18:10:48,931 INFO L78 Accepts]: Start accepts. Automaton has 71 states and 77 transitions. Word has length 50 [2018-09-21 18:10:48,931 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-21 18:10:48,931 INFO L480 AbstractCegarLoop]: Abstraction has 71 states and 77 transitions. [2018-09-21 18:10:48,932 INFO L481 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-09-21 18:10:48,932 INFO L276 IsEmpty]: Start isEmpty. Operand 71 states and 77 transitions. [2018-09-21 18:10:48,933 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2018-09-21 18:10:48,933 INFO L368 BasicCegarLoop]: Found error trace [2018-09-21 18:10:48,934 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] [2018-09-21 18:10:48,934 INFO L423 AbstractCegarLoop]: === Iteration 3 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-21 18:10:48,934 INFO L82 PathProgramCache]: Analyzing trace with hash 382015451, now seen corresponding path program 1 times [2018-09-21 18:10:48,936 INFO L227 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-09-21 18:10:48,936 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 4 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2018-09-21 18:10:48,943 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY Waiting until toolchain timeout for monitored process 4 with mathsat -unsat_core_generation=3 [2018-09-21 18:10:49,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-21 18:10:49,106 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-21 18:10:49,783 WARN L178 SmtUtils]: Spent 165.00 ms on a formula simplification that was a NOOP. DAG size: 5 [2018-09-21 18:10:50,285 INFO L682 Elim1Store]: detected equality via solver [2018-09-21 18:10:50,285 INFO L682 Elim1Store]: detected equality via solver [2018-09-21 18:10:50,287 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 [2018-09-21 18:10:50,325 INFO L700 Elim1Store]: detected not equals via solver [2018-09-21 18:10:50,343 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 [2018-09-21 18:10:50,344 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-09-21 18:10:50,364 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-21 18:10:50,387 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. [2018-09-21 18:10:50,388 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:36, output treesize:28 [2018-09-21 18:10:51,180 INFO L682 Elim1Store]: detected equality via solver [2018-09-21 18:10:51,181 INFO L682 Elim1Store]: detected equality via solver [2018-09-21 18:10:51,183 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 [2018-09-21 18:10:51,234 INFO L700 Elim1Store]: detected not equals via solver [2018-09-21 18:10:51,257 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 [2018-09-21 18:10:51,258 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-09-21 18:10:51,292 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-21 18:10:51,354 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. [2018-09-21 18:10:51,354 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:63, output treesize:55 [2018-09-21 18:10:51,698 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 [2018-09-21 18:10:51,708 INFO L700 Elim1Store]: detected not equals via solver [2018-09-21 18:10:51,718 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 [2018-09-21 18:10:51,719 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-09-21 18:10:51,740 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-21 18:10:51,770 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. [2018-09-21 18:10:51,771 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 4 variables, input treesize:44, output treesize:18 [2018-09-21 18:10:52,931 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 18:10:52,931 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-09-21 18:10:52,951 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-21 18:10:52,951 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2018-09-21 18:10:52,952 INFO L459 AbstractCegarLoop]: Interpolant automaton has 15 states [2018-09-21 18:10:52,952 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2018-09-21 18:10:52,952 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=181, Unknown=0, NotChecked=0, Total=210 [2018-09-21 18:10:52,954 INFO L87 Difference]: Start difference. First operand 71 states and 77 transitions. Second operand 15 states. [2018-09-21 18:10:55,381 WARN L178 SmtUtils]: Spent 949.00 ms on a formula simplification that was a NOOP. DAG size: 8 [2018-09-21 18:11:02,048 WARN L178 SmtUtils]: Spent 104.00 ms on a formula simplification that was a NOOP. DAG size: 35 [2018-09-21 18:11:04,025 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-21 18:11:04,025 INFO L93 Difference]: Finished difference Result 78 states and 84 transitions. [2018-09-21 18:11:04,026 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2018-09-21 18:11:04,026 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 50 [2018-09-21 18:11:04,027 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-21 18:11:04,028 INFO L225 Difference]: With dead ends: 78 [2018-09-21 18:11:04,028 INFO L226 Difference]: Without dead ends: 73 [2018-09-21 18:11:04,029 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 35 SyntacticMatches, 1 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 86 ImplicationChecksByTransitivity, 7.6s TimeCoverageRelationStatistics Valid=109, Invalid=647, Unknown=0, NotChecked=0, Total=756 [2018-09-21 18:11:04,029 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 73 states. [2018-09-21 18:11:04,039 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 73 to 71. [2018-09-21 18:11:04,039 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 71 states. [2018-09-21 18:11:04,041 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 71 states to 71 states and 76 transitions. [2018-09-21 18:11:04,041 INFO L78 Accepts]: Start accepts. Automaton has 71 states and 76 transitions. Word has length 50 [2018-09-21 18:11:04,041 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-21 18:11:04,042 INFO L480 AbstractCegarLoop]: Abstraction has 71 states and 76 transitions. [2018-09-21 18:11:04,042 INFO L481 AbstractCegarLoop]: Interpolant automaton has 15 states. [2018-09-21 18:11:04,042 INFO L276 IsEmpty]: Start isEmpty. Operand 71 states and 76 transitions. [2018-09-21 18:11:04,043 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2018-09-21 18:11:04,044 INFO L368 BasicCegarLoop]: Found error trace [2018-09-21 18:11:04,044 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] [2018-09-21 18:11:04,044 INFO L423 AbstractCegarLoop]: === Iteration 4 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-21 18:11:04,044 INFO L82 PathProgramCache]: Analyzing trace with hash -1695193892, now seen corresponding path program 1 times [2018-09-21 18:11:04,045 INFO L227 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-09-21 18:11:04,045 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 5 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with mathsat -unsat_core_generation=3 [2018-09-21 18:11:04,050 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-21 18:11:04,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-21 18:11:04,134 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-21 18:11:04,192 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 [2018-09-21 18:11:04,201 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 [2018-09-21 18:11:04,201 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-09-21 18:11:04,208 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-21 18:11:04,230 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. [2018-09-21 18:11:04,230 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:24, output treesize:20 [2018-09-21 18:11:04,270 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 [2018-09-21 18:11:04,277 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 [2018-09-21 18:11:04,277 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-09-21 18:11:04,282 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-21 18:11:04,292 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. [2018-09-21 18:11:04,292 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 4 variables, input treesize:29, output treesize:14 [2018-09-21 18:11:04,553 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 18:11:04,553 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-09-21 18:11:04,567 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-21 18:11:04,568 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2018-09-21 18:11:04,568 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-09-21 18:11:04,569 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-09-21 18:11:04,569 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2018-09-21 18:11:04,569 INFO L87 Difference]: Start difference. First operand 71 states and 76 transitions. Second operand 9 states. [2018-09-21 18:11:07,176 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-21 18:11:07,176 INFO L93 Difference]: Finished difference Result 67 states and 70 transitions. [2018-09-21 18:11:07,177 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2018-09-21 18:11:07,177 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 50 [2018-09-21 18:11:07,178 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-21 18:11:07,178 INFO L225 Difference]: With dead ends: 67 [2018-09-21 18:11:07,178 INFO L226 Difference]: Without dead ends: 0 [2018-09-21 18:11:07,179 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 42 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 38 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=79, Invalid=263, Unknown=0, NotChecked=0, Total=342 [2018-09-21 18:11:07,179 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-09-21 18:11:07,179 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-09-21 18:11:07,179 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-09-21 18:11:07,179 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-09-21 18:11:07,179 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 50 [2018-09-21 18:11:07,179 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-21 18:11:07,180 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-09-21 18:11:07,180 INFO L481 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-09-21 18:11:07,180 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-09-21 18:11:07,180 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-09-21 18:11:07,185 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.09 06:11:07 BoogieIcfgContainer [2018-09-21 18:11:07,185 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-09-21 18:11:07,186 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-09-21 18:11:07,186 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-09-21 18:11:07,186 INFO L276 PluginConnector]: Witness Printer initialized [2018-09-21 18:11:07,187 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.09 06:10:41" (3/4) ... [2018-09-21 18:11:07,191 INFO L144 WitnessPrinter]: Generating witness for correct program [2018-09-21 18:11:07,198 INFO L316 RCFGBacktranslator]: Ignoring RootEdge to procedure floor_double [2018-09-21 18:11:07,198 INFO L316 RCFGBacktranslator]: Ignoring RootEdge to procedure ULTIMATE.init [2018-09-21 18:11:07,198 INFO L316 RCFGBacktranslator]: Ignoring RootEdge to procedure isinf_double [2018-09-21 18:11:07,199 INFO L316 RCFGBacktranslator]: Ignoring RootEdge to procedure main [2018-09-21 18:11:07,206 INFO L850 BoogieBacktranslator]: Reduced CFG by removing 18 nodes and edges [2018-09-21 18:11:07,206 INFO L850 BoogieBacktranslator]: Reduced CFG by removing 8 nodes and edges [2018-09-21 18:11:07,207 INFO L850 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2018-09-21 18:11:07,280 INFO L145 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2018-09-21 18:11:07,280 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-09-21 18:11:07,281 INFO L168 Benchmark]: Toolchain (without parser) took 28935.58 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 201.3 MB). Free memory was 951.9 MB in the beginning and 1.1 GB in the end (delta: -188.9 MB). Peak memory consumption was 12.4 MB. Max. memory is 11.5 GB. [2018-09-21 18:11:07,282 INFO L168 Benchmark]: CDTParser took 0.18 ms. Allocated memory is still 1.0 GB. Free memory is still 978.7 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-09-21 18:11:07,283 INFO L168 Benchmark]: CACSL2BoogieTranslator took 429.89 ms. Allocated memory is still 1.0 GB. Free memory was 951.9 MB in the beginning and 935.7 MB in the end (delta: 16.1 MB). Peak memory consumption was 16.1 MB. Max. memory is 11.5 GB. [2018-09-21 18:11:07,283 INFO L168 Benchmark]: Boogie Preprocessor took 58.40 ms. Allocated memory is still 1.0 GB. Free memory is still 935.7 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-09-21 18:11:07,284 INFO L168 Benchmark]: RCFGBuilder took 2198.25 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 141.6 MB). Free memory was 935.7 MB in the beginning and 1.1 GB in the end (delta: -161.5 MB). Peak memory consumption was 22.6 MB. Max. memory is 11.5 GB. [2018-09-21 18:11:07,284 INFO L168 Benchmark]: TraceAbstraction took 26147.32 ms. Allocated memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 59.8 MB). Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: -47.6 MB). Peak memory consumption was 12.2 MB. Max. memory is 11.5 GB. [2018-09-21 18:11:07,285 INFO L168 Benchmark]: Witness Printer took 94.55 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: 4.1 MB). Peak memory consumption was 4.1 MB. Max. memory is 11.5 GB. [2018-09-21 18:11:07,289 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18 ms. Allocated memory is still 1.0 GB. Free memory is still 978.7 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 429.89 ms. Allocated memory is still 1.0 GB. Free memory was 951.9 MB in the beginning and 935.7 MB in the end (delta: 16.1 MB). Peak memory consumption was 16.1 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 58.40 ms. Allocated memory is still 1.0 GB. Free memory is still 935.7 MB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 2198.25 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 141.6 MB). Free memory was 935.7 MB in the beginning and 1.1 GB in the end (delta: -161.5 MB). Peak memory consumption was 22.6 MB. Max. memory is 11.5 GB. * TraceAbstraction took 26147.32 ms. Allocated memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 59.8 MB). Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: -47.6 MB). Peak memory consumption was 12.2 MB. Max. memory is 11.5 GB. * Witness Printer took 94.55 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: 4.1 MB). Peak memory consumption was 4.1 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 106]: 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 - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 83 locations, 1 error locations. SAFE Result, 26.0s OverallTime, 4 OverallIterations, 1 TraceHistogramMax, 20.1s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 245 SDtfs, 457 SDslu, 1031 SDs, 0 SdLazy, 556 SolverSat, 41 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 12.6s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 205 GetRequests, 142 SyntacticMatches, 1 SemanticMatches, 62 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 185 ImplicationChecksByTransitivity, 10.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=83occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s AbstIntTime, 0 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 4 MinimizatonAttempts, 21 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 5.2s InterpolantComputationTime, 174 NumberOfCodeBlocks, 174 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 170 ConstructedInterpolants, 49 QuantifiedInterpolants, 63592 SizeOfPredicates, 27 NumberOfNonLiveVariables, 368 ConjunctsInSsa, 40 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...