./Ultimate.py --spec /storage/repos/svcomp/c/properties/unreach-call.prp --file /storage/repos/svcomp/c/float-benchs/cast_union_loose_false-unreach-call_true-termination.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 2e94e6aa Calling Ultimate with: java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx12G -Xms1G -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i /storage/repos/svcomp/c/float-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 /storage/repos/svcomp/c/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 0.1.24-2e94e6a [2018-12-31 02:42:41,916 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-12-31 02:42:41,918 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-12-31 02:42:41,935 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-12-31 02:42:41,935 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-12-31 02:42:41,937 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-12-31 02:42:41,938 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-12-31 02:42:41,942 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-12-31 02:42:41,944 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-12-31 02:42:41,945 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-12-31 02:42:41,946 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-12-31 02:42:41,946 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-12-31 02:42:41,948 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-12-31 02:42:41,949 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-12-31 02:42:41,950 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-12-31 02:42:41,951 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-12-31 02:42:41,952 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-12-31 02:42:41,954 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-12-31 02:42:41,956 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-12-31 02:42:41,958 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-12-31 02:42:41,959 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-12-31 02:42:41,960 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-12-31 02:42:41,963 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-12-31 02:42:41,964 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-12-31 02:42:41,964 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-12-31 02:42:41,965 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-12-31 02:42:41,966 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-12-31 02:42:41,967 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-12-31 02:42:41,968 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-12-31 02:42:41,969 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-12-31 02:42:41,970 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-12-31 02:42:41,971 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-12-31 02:42:41,971 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-12-31 02:42:41,971 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-12-31 02:42:41,972 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-12-31 02:42:41,974 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-12-31 02:42:41,974 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2018-12-31 02:42:41,990 INFO L110 SettingsManager]: Loading preferences was successful [2018-12-31 02:42:41,990 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-12-31 02:42:41,991 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-12-31 02:42:41,991 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-12-31 02:42:41,992 INFO L133 SettingsManager]: * Use SBE=true [2018-12-31 02:42:41,992 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-12-31 02:42:41,993 INFO L133 SettingsManager]: * sizeof long=4 [2018-12-31 02:42:41,993 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-12-31 02:42:41,993 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-12-31 02:42:41,993 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-12-31 02:42:41,993 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-12-31 02:42:41,993 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-12-31 02:42:41,994 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-12-31 02:42:41,994 INFO L133 SettingsManager]: * sizeof long double=12 [2018-12-31 02:42:41,994 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-12-31 02:42:41,994 INFO L133 SettingsManager]: * Use constant arrays=true [2018-12-31 02:42:41,994 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-12-31 02:42:41,996 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-12-31 02:42:41,996 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-12-31 02:42:41,996 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-12-31 02:42:41,997 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-12-31 02:42:41,997 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-12-31 02:42:41,997 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-12-31 02:42:41,997 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-12-31 02:42:41,997 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-12-31 02:42:41,998 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-12-31 02:42:41,999 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-12-31 02:42:41,999 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-12-31 02:42:41,999 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 [2018-12-31 02:42:42,065 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-12-31 02:42:42,085 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-12-31 02:42:42,093 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-12-31 02:42:42,095 INFO L271 PluginConnector]: Initializing CDTParser... [2018-12-31 02:42:42,095 INFO L276 PluginConnector]: CDTParser initialized [2018-12-31 02:42:42,097 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/svcomp/c/float-benchs/cast_union_loose_false-unreach-call_true-termination.c [2018-12-31 02:42:42,172 INFO L221 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/33d818a96/b5789680ca93466b819f339e13b7a371/FLAGbb259a100 [2018-12-31 02:42:42,630 INFO L307 CDTParser]: Found 1 translation units. [2018-12-31 02:42:42,631 INFO L161 CDTParser]: Scanning /storage/repos/svcomp/c/float-benchs/cast_union_loose_false-unreach-call_true-termination.c [2018-12-31 02:42:42,640 INFO L355 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/33d818a96/b5789680ca93466b819f339e13b7a371/FLAGbb259a100 [2018-12-31 02:42:42,968 INFO L363 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/33d818a96/b5789680ca93466b819f339e13b7a371 [2018-12-31 02:42:42,972 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-12-31 02:42:42,974 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-12-31 02:42:42,976 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-12-31 02:42:42,976 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-12-31 02:42:42,981 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-12-31 02:42:42,982 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.12 02:42:42" (1/1) ... [2018-12-31 02:42:42,987 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1bb36889 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.12 02:42:42, skipping insertion in model container [2018-12-31 02:42:42,988 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.12 02:42:42" (1/1) ... [2018-12-31 02:42:43,000 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-12-31 02:42:43,022 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-12-31 02:42:43,242 INFO L204 PostProcessor]: Analyzing one entry point: main [2018-12-31 02:42:43,247 INFO L191 MainTranslator]: Completed pre-run [2018-12-31 02:42:43,274 INFO L204 PostProcessor]: Analyzing one entry point: main [2018-12-31 02:42:43,296 INFO L195 MainTranslator]: Completed translation [2018-12-31 02:42:43,297 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.12 02:42:43 WrapperNode [2018-12-31 02:42:43,298 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-12-31 02:42:43,299 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-12-31 02:42:43,299 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-12-31 02:42:43,299 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-12-31 02:42:43,311 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.12 02:42:43" (1/1) ... [2018-12-31 02:42:43,325 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.12 02:42:43" (1/1) ... [2018-12-31 02:42:43,346 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-12-31 02:42:43,346 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-12-31 02:42:43,347 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-12-31 02:42:43,347 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-12-31 02:42:43,355 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.12 02:42:43" (1/1) ... [2018-12-31 02:42:43,355 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.12 02:42:43" (1/1) ... [2018-12-31 02:42:43,357 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.12 02:42:43" (1/1) ... [2018-12-31 02:42:43,358 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.12 02:42:43" (1/1) ... [2018-12-31 02:42:43,366 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.12 02:42:43" (1/1) ... [2018-12-31 02:42:43,369 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.12 02:42:43" (1/1) ... [2018-12-31 02:42:43,370 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.12 02:42:43" (1/1) ... [2018-12-31 02:42:43,373 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-12-31 02:42:43,373 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-12-31 02:42:43,374 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-12-31 02:42:43,374 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-12-31 02:42:43,375 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.12 02:42:43" (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 [2018-12-31 02:42:43,503 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2018-12-31 02:42:43,503 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2018-12-31 02:42:43,503 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2018-12-31 02:42:43,503 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-12-31 02:42:43,503 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-12-31 02:42:43,504 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2018-12-31 02:42:43,504 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-12-31 02:42:43,761 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-12-31 02:42:43,761 INFO L280 CfgBuilder]: Removed 8 assue(true) statements. [2018-12-31 02:42:43,762 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.12 02:42:43 BoogieIcfgContainer [2018-12-31 02:42:43,762 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-12-31 02:42:43,763 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-12-31 02:42:43,763 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-12-31 02:42:43,766 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-12-31 02:42:43,766 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 31.12 02:42:42" (1/3) ... [2018-12-31 02:42:43,767 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@592430e9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 31.12 02:42:43, skipping insertion in model container [2018-12-31 02:42:43,767 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.12 02:42:43" (2/3) ... [2018-12-31 02:42:43,768 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@592430e9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 31.12 02:42:43, skipping insertion in model container [2018-12-31 02:42:43,768 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.12 02:42:43" (3/3) ... [2018-12-31 02:42:43,770 INFO L112 eAbstractionObserver]: Analyzing ICFG cast_union_loose_false-unreach-call_true-termination.c [2018-12-31 02:42:43,781 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-12-31 02:42:43,799 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-12-31 02:42:43,849 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-12-31 02:42:43,922 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-12-31 02:42:43,923 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-12-31 02:42:43,924 INFO L383 AbstractCegarLoop]: Hoare is true [2018-12-31 02:42:43,924 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-12-31 02:42:43,924 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-12-31 02:42:43,924 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-12-31 02:42:43,924 INFO L387 AbstractCegarLoop]: Difference is false [2018-12-31 02:42:43,925 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-12-31 02:42:43,925 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-12-31 02:42:43,944 INFO L276 IsEmpty]: Start isEmpty. Operand 10 states. [2018-12-31 02:42:43,951 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2018-12-31 02:42:43,951 INFO L394 BasicCegarLoop]: Found error trace [2018-12-31 02:42:43,952 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2018-12-31 02:42:43,954 INFO L423 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-31 02:42:43,960 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2018-12-31 02:42:43,960 INFO L82 PathProgramCache]: Analyzing trace with hash 28692803, now seen corresponding path program 1 times [2018-12-31 02:42:43,962 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-31 02:42:43,963 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-31 02:42:44,013 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-31 02:42:44,014 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-31 02:42:44,014 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-31 02:42:44,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-31 02:42:44,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-31 02:42:44,161 INFO L469 BasicCegarLoop]: Counterexample might be feasible [2018-12-31 02:42:44,188 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 31.12 02:42:44 BoogieIcfgContainer [2018-12-31 02:42:44,188 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-12-31 02:42:44,189 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-12-31 02:42:44,189 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-12-31 02:42:44,189 INFO L276 PluginConnector]: Witness Printer initialized [2018-12-31 02:42:44,190 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.12 02:42:43" (3/4) ... [2018-12-31 02:42:44,193 INFO L147 WitnessPrinter]: No result that supports witness generation found [2018-12-31 02:42:44,194 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-12-31 02:42:44,194 INFO L168 Benchmark]: Toolchain (without parser) took 1221.47 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 138.4 MB). Free memory was 947.3 MB in the beginning and 1.1 GB in the end (delta: -153.2 MB). There was no memory consumed. Max. memory is 11.5 GB. [2018-12-31 02:42:44,197 INFO L168 Benchmark]: CDTParser took 0.25 ms. Allocated memory is still 1.0 GB. Free memory is still 978.2 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-31 02:42:44,197 INFO L168 Benchmark]: CACSL2BoogieTranslator took 322.34 ms. Allocated memory is still 1.0 GB. Free memory was 947.3 MB in the beginning and 935.3 MB in the end (delta: 12.1 MB). Peak memory consumption was 12.1 MB. Max. memory is 11.5 GB. [2018-12-31 02:42:44,199 INFO L168 Benchmark]: Boogie Procedure Inliner took 47.04 ms. Allocated memory is still 1.0 GB. Free memory is still 935.3 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-31 02:42:44,199 INFO L168 Benchmark]: Boogie Preprocessor took 26.55 ms. Allocated memory is still 1.0 GB. Free memory was 935.3 MB in the beginning and 929.9 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. [2018-12-31 02:42:44,200 INFO L168 Benchmark]: RCFGBuilder took 388.51 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 138.4 MB). Free memory was 929.9 MB in the beginning and 1.1 GB in the end (delta: -184.1 MB). Peak memory consumption was 13.6 MB. Max. memory is 11.5 GB. [2018-12-31 02:42:44,201 INFO L168 Benchmark]: TraceAbstraction took 425.55 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: 13.4 MB). Peak memory consumption was 13.4 MB. Max. memory is 11.5 GB. [2018-12-31 02:42:44,202 INFO L168 Benchmark]: Witness Printer took 4.93 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. [2018-12-31 02:42:44,208 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.25 ms. Allocated memory is still 1.0 GB. Free memory is still 978.2 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 322.34 ms. Allocated memory is still 1.0 GB. Free memory was 947.3 MB in the beginning and 935.3 MB in the end (delta: 12.1 MB). Peak memory consumption was 12.1 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 47.04 ms. Allocated memory is still 1.0 GB. Free memory is still 935.3 MB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 26.55 ms. Allocated memory is still 1.0 GB. Free memory was 935.3 MB in the beginning and 929.9 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. * RCFGBuilder took 388.51 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 138.4 MB). Free memory was 929.9 MB in the beginning and 1.1 GB in the end (delta: -184.1 MB). Peak memory consumption was 13.6 MB. Max. memory is 11.5 GB. * TraceAbstraction took 425.55 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: 13.4 MB). Peak memory consumption was 13.4 MB. Max. memory is 11.5 GB. * Witness Printer took 4.93 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 someBinaryDOUBLEComparisonOperation at line 34, overapproximation of someBinaryArithmeticDOUBLEoperation at line 22, overapproximation of bitwiseXor at line 21. Possible FailurePath: [L27] int a; [L28] double r; [L30] a = __VERIFIER_nondet_int() [L17] union u x, y; [L18] x.i[0] = 0x43300000 [L19] EXPR x.i[0] [L19] y.i[0] = x.i[0] [L20] x.i[1] = 0x80000000 [L21] EXPR x.i[1] [L21] y.i[1] = i ^ x.i[1] [L22] EXPR y.d [L22] EXPR x.d [L22] return y.d - x.d; [L22] return y.d - x.d; [L22] return y.d - x.d; [L33] r = cast(a) [L8] COND TRUE !(cond) [L8] __VERIFIER_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 10 locations, 1 error locations. UNSAFE Result, 0.2s 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=10occurred 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, 5 NumberOfCodeBlocks, 5 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 0.1.24-2e94e6a [2018-12-31 02:42:46,600 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-12-31 02:42:46,601 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-12-31 02:42:46,614 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-12-31 02:42:46,614 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-12-31 02:42:46,615 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-12-31 02:42:46,616 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-12-31 02:42:46,619 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-12-31 02:42:46,621 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-12-31 02:42:46,622 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-12-31 02:42:46,622 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-12-31 02:42:46,623 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-12-31 02:42:46,624 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-12-31 02:42:46,625 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-12-31 02:42:46,627 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-12-31 02:42:46,627 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-12-31 02:42:46,628 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-12-31 02:42:46,631 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-12-31 02:42:46,633 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-12-31 02:42:46,635 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-12-31 02:42:46,636 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-12-31 02:42:46,637 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-12-31 02:42:46,640 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-12-31 02:42:46,641 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-12-31 02:42:46,641 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-12-31 02:42:46,642 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-12-31 02:42:46,643 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-12-31 02:42:46,644 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-12-31 02:42:46,645 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-12-31 02:42:46,646 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-12-31 02:42:46,647 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-12-31 02:42:46,648 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-12-31 02:42:46,648 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-12-31 02:42:46,648 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-12-31 02:42:46,650 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-12-31 02:42:46,651 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-12-31 02:42:46,651 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2018-12-31 02:42:46,667 INFO L110 SettingsManager]: Loading preferences was successful [2018-12-31 02:42:46,667 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-12-31 02:42:46,668 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-12-31 02:42:46,668 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-12-31 02:42:46,669 INFO L133 SettingsManager]: * Use SBE=true [2018-12-31 02:42:46,669 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-12-31 02:42:46,669 INFO L133 SettingsManager]: * sizeof long=4 [2018-12-31 02:42:46,670 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-12-31 02:42:46,670 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-12-31 02:42:46,670 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-12-31 02:42:46,670 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-12-31 02:42:46,670 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-12-31 02:42:46,671 INFO L133 SettingsManager]: * Use bitvectors instead of ints=true [2018-12-31 02:42:46,671 INFO L133 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2018-12-31 02:42:46,671 INFO L133 SettingsManager]: * sizeof long double=12 [2018-12-31 02:42:46,671 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-12-31 02:42:46,671 INFO L133 SettingsManager]: * Use constant arrays=true [2018-12-31 02:42:46,671 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-12-31 02:42:46,673 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-12-31 02:42:46,673 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-12-31 02:42:46,673 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-12-31 02:42:46,674 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-12-31 02:42:46,674 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-12-31 02:42:46,674 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-12-31 02:42:46,674 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-12-31 02:42:46,674 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-12-31 02:42:46,674 INFO L133 SettingsManager]: * Trace refinement strategy=WOLF [2018-12-31 02:42:46,676 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-12-31 02:42:46,676 INFO L133 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2018-12-31 02:42:46,676 INFO L133 SettingsManager]: * Logic for external solver=AUFBV [2018-12-31 02:42:46,676 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 [2018-12-31 02:42:46,712 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-12-31 02:42:46,727 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-12-31 02:42:46,733 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-12-31 02:42:46,735 INFO L271 PluginConnector]: Initializing CDTParser... [2018-12-31 02:42:46,735 INFO L276 PluginConnector]: CDTParser initialized [2018-12-31 02:42:46,737 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/svcomp/c/float-benchs/cast_union_loose_false-unreach-call_true-termination.c [2018-12-31 02:42:46,804 INFO L221 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3ca99a7a4/bc2e5bb4c2584e7f9b77c4b4b46e9796/FLAG19d2deee8 [2018-12-31 02:42:47,315 INFO L307 CDTParser]: Found 1 translation units. [2018-12-31 02:42:47,315 INFO L161 CDTParser]: Scanning /storage/repos/svcomp/c/float-benchs/cast_union_loose_false-unreach-call_true-termination.c [2018-12-31 02:42:47,322 INFO L355 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3ca99a7a4/bc2e5bb4c2584e7f9b77c4b4b46e9796/FLAG19d2deee8 [2018-12-31 02:42:47,689 INFO L363 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3ca99a7a4/bc2e5bb4c2584e7f9b77c4b4b46e9796 [2018-12-31 02:42:47,694 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-12-31 02:42:47,695 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-12-31 02:42:47,697 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-12-31 02:42:47,698 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-12-31 02:42:47,702 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-12-31 02:42:47,703 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.12 02:42:47" (1/1) ... [2018-12-31 02:42:47,707 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@23d661de and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.12 02:42:47, skipping insertion in model container [2018-12-31 02:42:47,707 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.12 02:42:47" (1/1) ... [2018-12-31 02:42:47,716 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-12-31 02:42:47,735 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-12-31 02:42:47,969 INFO L204 PostProcessor]: Analyzing one entry point: main [2018-12-31 02:42:47,976 INFO L191 MainTranslator]: Completed pre-run [2018-12-31 02:42:48,005 INFO L204 PostProcessor]: Analyzing one entry point: main [2018-12-31 02:42:48,037 INFO L195 MainTranslator]: Completed translation [2018-12-31 02:42:48,037 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.12 02:42:48 WrapperNode [2018-12-31 02:42:48,037 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-12-31 02:42:48,039 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-12-31 02:42:48,039 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-12-31 02:42:48,039 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-12-31 02:42:48,049 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.12 02:42:48" (1/1) ... [2018-12-31 02:42:48,061 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.12 02:42:48" (1/1) ... [2018-12-31 02:42:48,085 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-12-31 02:42:48,085 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-12-31 02:42:48,086 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-12-31 02:42:48,086 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-12-31 02:42:48,164 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.12 02:42:48" (1/1) ... [2018-12-31 02:42:48,164 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.12 02:42:48" (1/1) ... [2018-12-31 02:42:48,168 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.12 02:42:48" (1/1) ... [2018-12-31 02:42:48,168 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.12 02:42:48" (1/1) ... [2018-12-31 02:42:48,179 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.12 02:42:48" (1/1) ... [2018-12-31 02:42:48,182 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.12 02:42:48" (1/1) ... [2018-12-31 02:42:48,184 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.12 02:42:48" (1/1) ... [2018-12-31 02:42:48,187 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-12-31 02:42:48,188 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-12-31 02:42:48,188 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-12-31 02:42:48,188 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-12-31 02:42:48,189 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.12 02:42:48" (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 [2018-12-31 02:42:48,258 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE8 [2018-12-31 02:42:48,259 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2018-12-31 02:42:48,259 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2018-12-31 02:42:48,259 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-12-31 02:42:48,259 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-12-31 02:42:48,259 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-12-31 02:42:48,259 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2018-12-31 02:42:48,665 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-12-31 02:42:48,665 INFO L280 CfgBuilder]: Removed 8 assue(true) statements. [2018-12-31 02:42:48,666 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.12 02:42:48 BoogieIcfgContainer [2018-12-31 02:42:48,666 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-12-31 02:42:48,667 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-12-31 02:42:48,668 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-12-31 02:42:48,671 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-12-31 02:42:48,671 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 31.12 02:42:47" (1/3) ... [2018-12-31 02:42:48,672 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@dc720a2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 31.12 02:42:48, skipping insertion in model container [2018-12-31 02:42:48,673 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.12 02:42:48" (2/3) ... [2018-12-31 02:42:48,673 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@dc720a2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 31.12 02:42:48, skipping insertion in model container [2018-12-31 02:42:48,673 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.12 02:42:48" (3/3) ... [2018-12-31 02:42:48,675 INFO L112 eAbstractionObserver]: Analyzing ICFG cast_union_loose_false-unreach-call_true-termination.c [2018-12-31 02:42:48,686 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-12-31 02:42:48,695 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-12-31 02:42:48,714 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-12-31 02:42:48,748 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-12-31 02:42:48,749 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-12-31 02:42:48,749 INFO L383 AbstractCegarLoop]: Hoare is true [2018-12-31 02:42:48,749 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-12-31 02:42:48,751 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-12-31 02:42:48,751 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-12-31 02:42:48,751 INFO L387 AbstractCegarLoop]: Difference is false [2018-12-31 02:42:48,752 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-12-31 02:42:48,752 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-12-31 02:42:48,768 INFO L276 IsEmpty]: Start isEmpty. Operand 10 states. [2018-12-31 02:42:48,774 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2018-12-31 02:42:48,775 INFO L394 BasicCegarLoop]: Found error trace [2018-12-31 02:42:48,776 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2018-12-31 02:42:48,779 INFO L423 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-31 02:42:48,786 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2018-12-31 02:42:48,786 INFO L82 PathProgramCache]: Analyzing trace with hash 28692803, now seen corresponding path program 1 times [2018-12-31 02:42:48,792 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-12-31 02:42:48,793 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) [2018-12-31 02:42:48,808 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY Waiting until toolchain timeout for monitored process 2 with mathsat -unsat_core_generation=3 [2018-12-31 02:42:48,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-31 02:42:49,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-31 02:42:49,148 INFO L469 BasicCegarLoop]: Counterexample might be feasible [2018-12-31 02:42:49,174 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 31.12 02:42:49 BoogieIcfgContainer [2018-12-31 02:42:49,174 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-12-31 02:42:49,176 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-12-31 02:42:49,176 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-12-31 02:42:49,176 INFO L276 PluginConnector]: Witness Printer initialized [2018-12-31 02:42:49,177 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.12 02:42:48" (3/4) ... [2018-12-31 02:42:49,179 INFO L138 WitnessPrinter]: Generating witness for reachability counterexample [2018-12-31 02:42:49,224 INFO L145 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2018-12-31 02:42:49,225 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-12-31 02:42:49,226 INFO L168 Benchmark]: Toolchain (without parser) took 1531.36 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 115.9 MB). Free memory was 951.4 MB in the beginning and 1.1 GB in the end (delta: -118.3 MB). There was no memory consumed. Max. memory is 11.5 GB. [2018-12-31 02:42:49,228 INFO L168 Benchmark]: CDTParser took 0.23 ms. Allocated memory is still 1.0 GB. Free memory is still 978.2 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-31 02:42:49,229 INFO L168 Benchmark]: CACSL2BoogieTranslator took 340.55 ms. Allocated memory is still 1.0 GB. Free memory was 951.4 MB in the beginning and 940.6 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2018-12-31 02:42:49,229 INFO L168 Benchmark]: Boogie Procedure Inliner took 46.70 ms. Allocated memory is still 1.0 GB. Free memory was 940.6 MB in the beginning and 935.3 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. [2018-12-31 02:42:49,230 INFO L168 Benchmark]: Boogie Preprocessor took 101.82 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 115.9 MB). Free memory was 935.3 MB in the beginning and 1.1 GB in the end (delta: -168.7 MB). Peak memory consumption was 13.6 MB. Max. memory is 11.5 GB. [2018-12-31 02:42:49,232 INFO L168 Benchmark]: RCFGBuilder took 478.72 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 14.0 MB). Peak memory consumption was 14.0 MB. Max. memory is 11.5 GB. [2018-12-31 02:42:49,233 INFO L168 Benchmark]: TraceAbstraction took 507.85 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 20.4 MB). Peak memory consumption was 20.4 MB. Max. memory is 11.5 GB. [2018-12-31 02:42:49,234 INFO L168 Benchmark]: Witness Printer took 49.07 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-31 02:42:49,239 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23 ms. Allocated memory is still 1.0 GB. Free memory is still 978.2 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 340.55 ms. Allocated memory is still 1.0 GB. Free memory was 951.4 MB in the beginning and 940.6 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 46.70 ms. Allocated memory is still 1.0 GB. Free memory was 940.6 MB in the beginning and 935.3 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 101.82 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 115.9 MB). Free memory was 935.3 MB in the beginning and 1.1 GB in the end (delta: -168.7 MB). Peak memory consumption was 13.6 MB. Max. memory is 11.5 GB. * RCFGBuilder took 478.72 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 14.0 MB). Peak memory consumption was 14.0 MB. Max. memory is 11.5 GB. * TraceAbstraction took 507.85 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 20.4 MB). Peak memory consumption was 20.4 MB. Max. memory is 11.5 GB. * Witness Printer took 49.07 ms. Allocated memory is still 1.1 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() [L17] union u x, y; [L18] x.i[0] = 0x43300000 [L19] EXPR x.i[0] [L19] y.i[0] = x.i[0] [L20] x.i[1] = 0x80000000 [L21] EXPR x.i[1] [L21] y.i[1] = i ^ x.i[1] [L22] EXPR y.d [L22] EXPR x.d [L22] return y.d - x.d; [L22] return y.d - x.d; [L22] return y.d - x.d; [L33] r = cast(a) [L8] COND TRUE !(cond) [L8] __VERIFIER_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 10 locations, 1 error locations. UNSAFE Result, 0.4s 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=10occurred 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, 5 NumberOfCodeBlocks, 5 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...