/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/Ultimate.py --spec ../../../trunk/examples/svcomp/ReachSafety.prp --file ../../../trunk/examples/svcomp/float-benchs/cast_union_loose_false-unreach-call_true-termination.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 40ef5092 Calling Ultimate with: java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx12G -Xms1G -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../../../trunk/examples/svcomp/float-benchs/cast_union_loose_false-unreach-call_true-termination.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 4ab78e88e866bccb3788105d7b85f6b41d9bbaf2 .............................................................................................................................................................................................................................................................. 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-benchs/cast_union_loose_false-unreach-call_true-termination.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 4ab78e88e866bccb3788105d7b85f6b41d9bbaf2 ................................................................................................................................................................................................................................................................. Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE --- Real Ultimate output --- This is Ultimate 0.1.23-40ef509 [2018-09-20 13:48:45,215 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-09-20 13:48:45,219 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-09-20 13:48:45,234 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-09-20 13:48:45,234 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-09-20 13:48:45,235 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-09-20 13:48:45,236 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-09-20 13:48:45,238 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-09-20 13:48:45,241 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-09-20 13:48:45,242 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-09-20 13:48:45,243 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-09-20 13:48:45,244 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-09-20 13:48:45,247 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-09-20 13:48:45,249 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-09-20 13:48:45,251 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-09-20 13:48:45,251 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-09-20 13:48:45,253 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-09-20 13:48:45,255 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-09-20 13:48:45,257 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-09-20 13:48:45,259 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-09-20 13:48:45,260 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-09-20 13:48:45,262 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-09-20 13:48:45,265 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-09-20 13:48:45,265 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-09-20 13:48:45,265 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-09-20 13:48:45,266 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-09-20 13:48:45,268 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-09-20 13:48:45,269 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-09-20 13:48:45,270 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-09-20 13:48:45,271 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-09-20 13:48:45,271 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-09-20 13:48:45,272 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-09-20 13:48:45,273 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-09-20 13:48:45,273 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-09-20 13:48:45,274 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-09-20 13:48:45,275 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-09-20 13:48:45,276 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2018-09-20 13:48:45,292 INFO L110 SettingsManager]: Loading preferences was successful [2018-09-20 13:48:45,292 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-09-20 13:48:45,293 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-09-20 13:48:45,294 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-09-20 13:48:45,294 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-09-20 13:48:45,295 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-09-20 13:48:45,295 INFO L133 SettingsManager]: * Use SBE=true [2018-09-20 13:48:45,295 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-09-20 13:48:45,296 INFO L133 SettingsManager]: * sizeof long=4 [2018-09-20 13:48:45,296 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-09-20 13:48:45,296 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-09-20 13:48:45,296 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-09-20 13:48:45,296 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-09-20 13:48:45,297 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-09-20 13:48:45,297 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-09-20 13:48:45,297 INFO L133 SettingsManager]: * sizeof long double=12 [2018-09-20 13:48:45,297 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-09-20 13:48:45,299 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-09-20 13:48:45,299 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-09-20 13:48:45,299 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-09-20 13:48:45,299 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-09-20 13:48:45,300 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-09-20 13:48:45,300 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-09-20 13:48:45,300 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-09-20 13:48:45,300 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-09-20 13:48:45,301 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-09-20 13:48:45,301 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-09-20 13:48:45,302 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-09-20 13:48:45,302 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-09-20 13:48:45,302 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 -> 4ab78e88e866bccb3788105d7b85f6b41d9bbaf2 [2018-09-20 13:48:45,353 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-09-20 13:48:45,371 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-09-20 13:48:45,380 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-09-20 13:48:45,382 INFO L271 PluginConnector]: Initializing CDTParser... [2018-09-20 13:48:45,384 INFO L276 PluginConnector]: CDTParser initialized [2018-09-20 13:48:45,385 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/float-benchs/cast_union_loose_false-unreach-call_true-termination.c [2018-09-20 13:48:45,745 INFO L221 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/028f56305/c637045b627640668a5b2f53ffd32990/FLAG2e73b9e1a [2018-09-20 13:48:45,918 INFO L277 CDTParser]: Found 1 translation units. [2018-09-20 13:48:45,919 INFO L159 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/float-benchs/cast_union_loose_false-unreach-call_true-termination.c [2018-09-20 13:48:45,926 INFO L325 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/028f56305/c637045b627640668a5b2f53ffd32990/FLAG2e73b9e1a [2018-09-20 13:48:45,943 INFO L333 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/028f56305/c637045b627640668a5b2f53ffd32990 [2018-09-20 13:48:45,947 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-09-20 13:48:45,950 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-09-20 13:48:45,951 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-09-20 13:48:45,951 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-09-20 13:48:45,958 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-09-20 13:48:45,959 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.09 01:48:45" (1/1) ... [2018-09-20 13:48:45,963 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@223424f3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:48:45, skipping insertion in model container [2018-09-20 13:48:45,963 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.09 01:48:45" (1/1) ... [2018-09-20 13:48:45,976 INFO L160 ieTranslatorObserver]: Starting translation in SV-COMP mode [2018-09-20 13:48:46,208 INFO L170 PostProcessor]: Settings: Checked method=main [2018-09-20 13:48:46,232 INFO L424 MainDispatcher]: Starting main dispatcher in SV-COMP mode [2018-09-20 13:48:46,250 INFO L170 PostProcessor]: Settings: Checked method=main [2018-09-20 13:48:46,280 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:48:46 WrapperNode [2018-09-20 13:48:46,280 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-09-20 13:48:46,281 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-09-20 13:48:46,281 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-09-20 13:48:46,281 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-09-20 13:48:46,298 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:48:46" (1/1) ... [2018-09-20 13:48:46,298 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:48:46" (1/1) ... [2018-09-20 13:48:46,309 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:48:46" (1/1) ... [2018-09-20 13:48:46,310 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:48:46" (1/1) ... [2018-09-20 13:48:46,317 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:48:46" (1/1) ... [2018-09-20 13:48:46,318 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:48:46" (1/1) ... [2018-09-20 13:48:46,320 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:48:46" (1/1) ... [2018-09-20 13:48:46,323 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-09-20 13:48:46,324 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-09-20 13:48:46,324 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-09-20 13:48:46,324 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-09-20 13:48:46,325 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:48:46" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-09-20 13:48:46,410 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-09-20 13:48:46,410 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-09-20 13:48:46,410 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2018-09-20 13:48:46,410 INFO L138 BoogieDeclarations]: Found implementation of procedure cast [2018-09-20 13:48:46,410 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-09-20 13:48:46,410 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2018-09-20 13:48:46,411 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2018-09-20 13:48:46,411 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assume [2018-09-20 13:48:46,412 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2018-09-20 13:48:46,412 INFO L130 BoogieDeclarations]: Found specification of procedure cast [2018-09-20 13:48:46,412 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-09-20 13:48:46,412 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2018-09-20 13:48:46,412 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2018-09-20 13:48:46,415 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2018-09-20 13:48:46,415 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-09-20 13:48:46,415 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-09-20 13:48:46,417 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-09-20 13:48:46,417 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-09-20 13:48:46,417 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2018-09-20 13:48:46,418 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~real [2018-09-20 13:48:46,418 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2018-09-20 13:48:46,970 INFO L365 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-09-20 13:48:46,971 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.09 01:48:46 BoogieIcfgContainer [2018-09-20 13:48:46,971 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-09-20 13:48:46,972 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-09-20 13:48:46,972 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-09-20 13:48:46,976 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-09-20 13:48:46,976 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.09 01:48:45" (1/3) ... [2018-09-20 13:48:46,977 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7eea63ad and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.09 01:48:46, skipping insertion in model container [2018-09-20 13:48:46,977 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:48:46" (2/3) ... [2018-09-20 13:48:46,978 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7eea63ad and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.09 01:48:46, skipping insertion in model container [2018-09-20 13:48:46,978 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.09 01:48:46" (3/3) ... [2018-09-20 13:48:46,980 INFO L112 eAbstractionObserver]: Analyzing ICFG cast_union_loose_false-unreach-call_true-termination.c [2018-09-20 13:48:46,991 INFO L137 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-09-20 13:48:47,000 INFO L149 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-09-20 13:48:47,055 INFO L130 ementStrategyFactory]: Using default assertion order modulation [2018-09-20 13:48:47,056 INFO L381 AbstractCegarLoop]: Interprodecural is true [2018-09-20 13:48:47,056 INFO L382 AbstractCegarLoop]: Hoare is true [2018-09-20 13:48:47,056 INFO L383 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-09-20 13:48:47,056 INFO L384 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-09-20 13:48:47,057 INFO L385 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-09-20 13:48:47,057 INFO L386 AbstractCegarLoop]: Difference is false [2018-09-20 13:48:47,057 INFO L387 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-09-20 13:48:47,057 INFO L392 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-09-20 13:48:47,080 INFO L276 IsEmpty]: Start isEmpty. Operand 40 states. [2018-09-20 13:48:47,087 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2018-09-20 13:48:47,088 INFO L368 BasicCegarLoop]: Found error trace [2018-09-20 13:48:47,089 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] [2018-09-20 13:48:47,092 INFO L423 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-20 13:48:47,098 INFO L82 PathProgramCache]: Analyzing trace with hash 637573445, now seen corresponding path program 1 times [2018-09-20 13:48:47,101 INFO L227 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-09-20 13:48:47,102 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-09-20 13:48:47,165 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-20 13:48:47,166 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-20 13:48:47,166 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-20 13:48:47,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-09-20 13:48:47,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-09-20 13:48:47,374 INFO L443 BasicCegarLoop]: Counterexample might be feasible [2018-09-20 13:48:47,412 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.09 01:48:47 BoogieIcfgContainer [2018-09-20 13:48:47,412 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-09-20 13:48:47,412 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-09-20 13:48:47,413 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-09-20 13:48:47,413 INFO L276 PluginConnector]: Witness Printer initialized [2018-09-20 13:48:47,414 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.09 01:48:46" (3/4) ... [2018-09-20 13:48:47,419 INFO L147 WitnessPrinter]: No result that supports witness generation found [2018-09-20 13:48:47,420 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-09-20 13:48:47,421 INFO L168 Benchmark]: Toolchain (without parser) took 1473.43 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 129.5 MB). Free memory was 953.2 MB in the beginning and 1.1 GB in the end (delta: -137.2 MB). There was no memory consumed. Max. memory is 11.5 GB. [2018-09-20 13:48:47,424 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. [2018-09-20 13:48:47,425 INFO L168 Benchmark]: CACSL2BoogieTranslator took 329.67 ms. Allocated memory is still 1.0 GB. Free memory was 953.2 MB in the beginning and 942.5 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2018-09-20 13:48:47,426 INFO L168 Benchmark]: Boogie Preprocessor took 42.04 ms. Allocated memory is still 1.0 GB. Free memory is still 942.5 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-09-20 13:48:47,427 INFO L168 Benchmark]: RCFGBuilder took 647.53 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 129.5 MB). Free memory was 942.5 MB in the beginning and 1.1 GB in the end (delta: -161.7 MB). Peak memory consumption was 28.9 MB. Max. memory is 11.5 GB. [2018-09-20 13:48:47,429 INFO L168 Benchmark]: TraceAbstraction took 440.19 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: 13.7 MB). Peak memory consumption was 13.7 MB. Max. memory is 11.5 GB. [2018-09-20 13:48:47,431 INFO L168 Benchmark]: Witness Printer took 7.62 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2018-09-20 13:48:47,440 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 329.67 ms. Allocated memory is still 1.0 GB. Free memory was 953.2 MB in the beginning and 942.5 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 42.04 ms. Allocated memory is still 1.0 GB. Free memory is still 942.5 MB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 647.53 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 129.5 MB). Free memory was 942.5 MB in the beginning and 1.1 GB in the end (delta: -161.7 MB). Peak memory consumption was 28.9 MB. Max. memory is 11.5 GB. * TraceAbstraction took 440.19 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: 13.7 MB). Peak memory consumption was 13.7 MB. Max. memory is 11.5 GB. * Witness Printer took 7.62 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 8]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: overapproximation of bitwiseXor at line 21, overapproximation of someBinaryArithmeticDOUBLEoperation at line 22. Possible FailurePath: [L27] int a; [L28] double r; [L30] a = __VERIFIER_nondet_int() [L33] CALL, EXPR cast(a) VAL [\old(i)=0] [L17] FCALL union u x, y; VAL [\old(i)=0, i=0, x={1127219201:0}] [L17] FCALL union u x, y; VAL [\old(i)=0, i=0, x={1127219201:0}, y={1127219208:0}] [L18] FCALL x.i[0] = 0x43300000 VAL [\old(i)=0, i=0, x={1127219201:0}, y={1127219208:0}] [L19] EXPR, FCALL x.i[0] VAL [\old(i)=0, i=0, x={1127219201:0}, x.i[0]=1127219200, y={1127219208:0}] [L19] FCALL y.i[0] = x.i[0] VAL [\old(i)=0, i=0, x={1127219201:0}, x.i[0]=1127219200, y={1127219208:0}] [L20] FCALL x.i[1] = 0x80000000 VAL [\old(i)=0, i=0, x={1127219201:0}, y={1127219208:0}] [L21] EXPR, FCALL x.i[1] VAL [\old(i)=0, i=0, x={1127219201:0}, x.i[1]=-2147483648, y={1127219208:0}] [L21] FCALL y.i[1] = i ^ x.i[1] VAL [\old(i)=0, i=0, x={1127219201:0}, x.i[1]=-2147483648, y={1127219208:0}] [L22] EXPR, FCALL y.d VAL [\old(i)=0, i=0, x={1127219201:0}, y={1127219208:0}, y.d=1127219205] [L22] EXPR, FCALL x.d VAL [\old(i)=0, i=0, x={1127219201:0}, x.d=1127219203, y={1127219208:0}, y.d=1127219205] [L22] return y.d - x.d; [L22] return y.d - x.d; VAL [\old(i)=0, i=0, y={1127219208:0}] [L22] RET return y.d - x.d; VAL [\old(i)=0, i=0] [L33] EXPR cast(a) VAL [a=0, cast(a)=1127219206] [L33] r = cast(a) [L34] CALL __VERIFIER_assert(r >= -10000. && r <= 10000.) VAL [\old(cond)=0] [L8] COND TRUE !(cond) VAL [\old(cond)=0, cond=0] [L8] __VERIFIER_error() VAL [\old(cond)=0, cond=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 40 locations, 1 error locations. UNSAFE Result, 0.3s OverallTime, 1 OverallIterations, 1 TraceHistogramMax, 0.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: No data available, PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=40occurred 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: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 32 NumberOfCodeBlocks, 32 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces Received shutdown request... ### Bit-precise run ### This is Ultimate 0.1.23-40ef509 [2018-09-20 13:48:49,935 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-09-20 13:48:49,937 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-09-20 13:48:49,951 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-09-20 13:48:49,951 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-09-20 13:48:49,952 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-09-20 13:48:49,954 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-09-20 13:48:49,955 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-09-20 13:48:49,957 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-09-20 13:48:49,958 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-09-20 13:48:49,959 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-09-20 13:48:49,959 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-09-20 13:48:49,960 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-09-20 13:48:49,961 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-09-20 13:48:49,962 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-09-20 13:48:49,963 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-09-20 13:48:49,964 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-09-20 13:48:49,966 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-09-20 13:48:49,973 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-09-20 13:48:49,975 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-09-20 13:48:49,976 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-09-20 13:48:49,981 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-09-20 13:48:49,983 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-09-20 13:48:49,984 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-09-20 13:48:49,984 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-09-20 13:48:49,990 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-09-20 13:48:49,992 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-09-20 13:48:49,992 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-09-20 13:48:49,993 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-09-20 13:48:49,998 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-09-20 13:48:49,998 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-09-20 13:48:50,002 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-09-20 13:48:50,002 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-09-20 13:48:50,002 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-09-20 13:48:50,003 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-09-20 13:48:50,004 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-09-20 13:48:50,004 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2018-09-20 13:48:50,025 INFO L110 SettingsManager]: Loading preferences was successful [2018-09-20 13:48:50,026 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-09-20 13:48:50,027 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-09-20 13:48:50,028 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-09-20 13:48:50,028 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-09-20 13:48:50,029 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-09-20 13:48:50,029 INFO L133 SettingsManager]: * Use SBE=true [2018-09-20 13:48:50,029 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-09-20 13:48:50,029 INFO L133 SettingsManager]: * sizeof long=4 [2018-09-20 13:48:50,030 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-09-20 13:48:50,030 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-09-20 13:48:50,031 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-09-20 13:48:50,031 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-09-20 13:48:50,031 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-09-20 13:48:50,031 INFO L133 SettingsManager]: * Use bitvectors instead of ints=true [2018-09-20 13:48:50,031 INFO L133 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2018-09-20 13:48:50,031 INFO L133 SettingsManager]: * sizeof long double=12 [2018-09-20 13:48:50,032 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-09-20 13:48:50,032 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-09-20 13:48:50,032 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-09-20 13:48:50,032 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-09-20 13:48:50,034 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-09-20 13:48:50,034 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-09-20 13:48:50,034 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-09-20 13:48:50,034 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-09-20 13:48:50,034 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-09-20 13:48:50,037 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-09-20 13:48:50,037 INFO L133 SettingsManager]: * Trace refinement strategy=WOLF [2018-09-20 13:48:50,037 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-09-20 13:48:50,037 INFO L133 SettingsManager]: * Command for external solver=cvc4nyu --tear-down-incremental --rewrite-divk --print-success --lang smt [2018-09-20 13:48:50,037 INFO L133 SettingsManager]: * Logic for external solver=AUFBV [2018-09-20 13:48:50,038 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 -> 4ab78e88e866bccb3788105d7b85f6b41d9bbaf2 [2018-09-20 13:48:50,117 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-09-20 13:48:50,135 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-09-20 13:48:50,142 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-09-20 13:48:50,144 INFO L271 PluginConnector]: Initializing CDTParser... [2018-09-20 13:48:50,144 INFO L276 PluginConnector]: CDTParser initialized [2018-09-20 13:48:50,145 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/float-benchs/cast_union_loose_false-unreach-call_true-termination.c [2018-09-20 13:48:50,509 INFO L221 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/dce30cbb5/857da03990ec427bad05d46fc951b40d/FLAG6a9431014 [2018-09-20 13:48:50,698 INFO L277 CDTParser]: Found 1 translation units. [2018-09-20 13:48:50,700 INFO L159 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/float-benchs/cast_union_loose_false-unreach-call_true-termination.c [2018-09-20 13:48:50,708 INFO L325 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/dce30cbb5/857da03990ec427bad05d46fc951b40d/FLAG6a9431014 [2018-09-20 13:48:50,735 INFO L333 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/dce30cbb5/857da03990ec427bad05d46fc951b40d [2018-09-20 13:48:50,741 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-09-20 13:48:50,745 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-09-20 13:48:50,748 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-09-20 13:48:50,748 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-09-20 13:48:50,758 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-09-20 13:48:50,759 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.09 01:48:50" (1/1) ... [2018-09-20 13:48:50,763 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@294241e9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:48:50, skipping insertion in model container [2018-09-20 13:48:50,764 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.09 01:48:50" (1/1) ... [2018-09-20 13:48:50,777 INFO L160 ieTranslatorObserver]: Starting translation in SV-COMP mode [2018-09-20 13:48:51,005 INFO L170 PostProcessor]: Settings: Checked method=main [2018-09-20 13:48:51,027 INFO L424 MainDispatcher]: Starting main dispatcher in SV-COMP mode [2018-09-20 13:48:51,045 INFO L170 PostProcessor]: Settings: Checked method=main [2018-09-20 13:48:51,087 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:48:51 WrapperNode [2018-09-20 13:48:51,088 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-09-20 13:48:51,089 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-09-20 13:48:51,089 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-09-20 13:48:51,090 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-09-20 13:48:51,106 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:48:51" (1/1) ... [2018-09-20 13:48:51,106 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:48:51" (1/1) ... [2018-09-20 13:48:51,123 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:48:51" (1/1) ... [2018-09-20 13:48:51,123 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:48:51" (1/1) ... [2018-09-20 13:48:51,131 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:48:51" (1/1) ... [2018-09-20 13:48:51,133 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:48:51" (1/1) ... [2018-09-20 13:48:51,135 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:48:51" (1/1) ... [2018-09-20 13:48:51,139 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-09-20 13:48:51,140 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-09-20 13:48:51,140 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-09-20 13:48:51,140 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-09-20 13:48:51,141 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:48:51" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-09-20 13:48:51,297 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-09-20 13:48:51,297 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-09-20 13:48:51,297 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2018-09-20 13:48:51,297 INFO L138 BoogieDeclarations]: Found implementation of procedure cast [2018-09-20 13:48:51,297 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-09-20 13:48:51,298 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2018-09-20 13:48:51,298 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2018-09-20 13:48:51,298 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assume [2018-09-20 13:48:51,298 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2018-09-20 13:48:51,298 INFO L130 BoogieDeclarations]: Found specification of procedure cast [2018-09-20 13:48:51,298 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-09-20 13:48:51,298 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2018-09-20 13:48:51,299 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2018-09-20 13:48:51,299 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE8 [2018-09-20 13:48:51,299 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-09-20 13:48:51,299 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-09-20 13:48:51,299 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-09-20 13:48:51,299 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-09-20 13:48:51,299 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intFLOATTYPE8 [2018-09-20 13:48:51,300 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE8 [2018-09-20 13:48:51,303 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE4 [2018-09-20 13:48:51,919 INFO L365 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-09-20 13:48:51,920 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.09 01:48:51 BoogieIcfgContainer [2018-09-20 13:48:51,921 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-09-20 13:48:51,923 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-09-20 13:48:51,923 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-09-20 13:48:51,927 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-09-20 13:48:51,927 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.09 01:48:50" (1/3) ... [2018-09-20 13:48:51,928 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@603eb1cf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.09 01:48:51, skipping insertion in model container [2018-09-20 13:48:51,928 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:48:51" (2/3) ... [2018-09-20 13:48:51,929 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@603eb1cf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.09 01:48:51, skipping insertion in model container [2018-09-20 13:48:51,929 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.09 01:48:51" (3/3) ... [2018-09-20 13:48:51,932 INFO L112 eAbstractionObserver]: Analyzing ICFG cast_union_loose_false-unreach-call_true-termination.c [2018-09-20 13:48:51,942 INFO L137 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-09-20 13:48:51,950 INFO L149 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-09-20 13:48:51,994 INFO L130 ementStrategyFactory]: Using default assertion order modulation [2018-09-20 13:48:51,995 INFO L381 AbstractCegarLoop]: Interprodecural is true [2018-09-20 13:48:51,995 INFO L382 AbstractCegarLoop]: Hoare is true [2018-09-20 13:48:51,995 INFO L383 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-09-20 13:48:51,995 INFO L384 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-09-20 13:48:51,995 INFO L385 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-09-20 13:48:51,996 INFO L386 AbstractCegarLoop]: Difference is false [2018-09-20 13:48:51,996 INFO L387 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-09-20 13:48:51,996 INFO L392 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-09-20 13:48:52,014 INFO L276 IsEmpty]: Start isEmpty. Operand 40 states. [2018-09-20 13:48:52,022 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2018-09-20 13:48:52,022 INFO L368 BasicCegarLoop]: Found error trace [2018-09-20 13:48:52,023 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] [2018-09-20 13:48:52,026 INFO L423 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-20 13:48:52,032 INFO L82 PathProgramCache]: Analyzing trace with hash 637573445, now seen corresponding path program 1 times [2018-09-20 13:48:52,038 INFO L227 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-09-20 13:48:52,039 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 2 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with mathsat -unsat_core_generation=3 [2018-09-20 13:48:52,055 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-20 13:48:52,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-09-20 13:48:52,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-09-20 13:48:52,457 INFO L443 BasicCegarLoop]: Counterexample might be feasible [2018-09-20 13:48:52,495 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.09 01:48:52 BoogieIcfgContainer [2018-09-20 13:48:52,496 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-09-20 13:48:52,496 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-09-20 13:48:52,496 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-09-20 13:48:52,496 INFO L276 PluginConnector]: Witness Printer initialized [2018-09-20 13:48:52,497 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.09 01:48:51" (3/4) ... [2018-09-20 13:48:52,500 INFO L138 WitnessPrinter]: Generating witness for reachability counterexample [2018-09-20 13:48:52,554 INFO L145 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2018-09-20 13:48:52,554 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-09-20 13:48:52,555 INFO L168 Benchmark]: Toolchain (without parser) took 1813.23 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 155.2 MB). Free memory was 951.9 MB in the beginning and 1.1 GB in the end (delta: -148.3 MB). Peak memory consumption was 6.9 MB. Max. memory is 11.5 GB. [2018-09-20 13:48:52,557 INFO L168 Benchmark]: CDTParser took 0.20 ms. Allocated memory is still 1.0 GB. Free memory is still 978.7 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-09-20 13:48:52,557 INFO L168 Benchmark]: CACSL2BoogieTranslator took 340.97 ms. Allocated memory is still 1.0 GB. Free memory was 951.9 MB in the beginning and 941.1 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2018-09-20 13:48:52,558 INFO L168 Benchmark]: Boogie Preprocessor took 50.25 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. [2018-09-20 13:48:52,559 INFO L168 Benchmark]: RCFGBuilder took 781.46 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 155.2 MB). Free memory was 935.8 MB in the beginning and 1.1 GB in the end (delta: -189.6 MB). Peak memory consumption was 21.8 MB. Max. memory is 11.5 GB. [2018-09-20 13:48:52,560 INFO L168 Benchmark]: TraceAbstraction took 572.93 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: 25.2 MB). Peak memory consumption was 25.2 MB. Max. memory is 11.5 GB. [2018-09-20 13:48:52,561 INFO L168 Benchmark]: Witness Printer took 57.96 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2018-09-20 13:48:52,564 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20 ms. Allocated memory is still 1.0 GB. Free memory is still 978.7 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 340.97 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 50.25 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 781.46 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 155.2 MB). Free memory was 935.8 MB in the beginning and 1.1 GB in the end (delta: -189.6 MB). Peak memory consumption was 21.8 MB. Max. memory is 11.5 GB. * TraceAbstraction took 572.93 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: 25.2 MB). Peak memory consumption was 25.2 MB. Max. memory is 11.5 GB. * Witness Printer took 57.96 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: - CounterExampleResult [Line: 8]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L27] int a; [L28] double r; [L30] a = __VERIFIER_nondet_int() [L33] CALL, EXPR cast(a) VAL [\old(i)=4294959104] [L17] FCALL union u x, y; VAL [\old(i)=4294959104, i=4294959104, x={2:0}] [L17] FCALL union u x, y; VAL [\old(i)=4294959104, i=4294959104, x={2:0}, y={3:0}] [L18] FCALL x.i[0] = 0x43300000 VAL [\old(i)=4294959104, i=4294959104, x={2:0}, y={3:0}] [L19] EXPR, FCALL x.i[0] VAL [\old(i)=4294959104, i=4294959104, x={2:0}, x.i[0]=1127219200, y={3:0}] [L19] FCALL y.i[0] = x.i[0] VAL [\old(i)=4294959104, i=4294959104, x={2:0}, x.i[0]=1127219200, y={3:0}] [L20] FCALL x.i[1] = 0x80000000 VAL [\old(i)=4294959104, i=4294959104, x={2:0}, y={3:0}] [L21] EXPR, FCALL x.i[1] VAL [\old(i)=4294959104, i=4294959104, x={2:0}, x.i[1]=-2147483648, y={3:0}] [L21] FCALL y.i[1] = i ^ x.i[1] VAL [\old(i)=4294959104, i=4294959104, x={2:0}, x.i[1]=-2147483648, y={3:0}] [L22] EXPR, FCALL y.d VAL [\old(i)=4294959104, i=4294959104, x={2:0}, y={3:0}, y.d=NaN] [L22] EXPR, FCALL x.d VAL [\old(i)=4294959104, i=4294959104, x={2:0}, x.d=-0.00000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000556920282, y={3:0}, y.d=NaN] [L22] return y.d - x.d; [L22] return y.d - x.d; VAL [\old(i)=4294959104, \result=NaN, i=4294959104, y={3:0}] [L22] RET return y.d - x.d; VAL [\old(i)=4294959104, \result=NaN, i=4294959104] [L33] EXPR cast(a) VAL [a=4294959104, cast(a)=NaN] [L33] r = cast(a) [L34] CALL __VERIFIER_assert(r >= -10000. && r <= 10000.) VAL [\old(cond)=0] [L8] COND TRUE !(cond) VAL [\old(cond)=0, cond=0] [L8] __VERIFIER_error() VAL [\old(cond)=0, cond=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 40 locations, 1 error locations. UNSAFE Result, 0.5s OverallTime, 1 OverallIterations, 1 TraceHistogramMax, 0.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: No data available, PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=40occurred 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: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 32 NumberOfCodeBlocks, 32 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! Received shutdown request...