./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/float-benchs/cast_union_loose.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 30f4e4ab Calling Ultimate with: /usr/bin/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 ../sv-benchmarks/c/float-benchs/cast_union_loose.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: /usr/bin/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 ../sv-benchmarks/c/float-benchs/cast_union_loose.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 0.1.24-30f4e4a [2019-11-27 23:34:59,323 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-27 23:34:59,326 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-27 23:34:59,344 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-27 23:34:59,345 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-27 23:34:59,346 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-27 23:34:59,348 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-27 23:34:59,350 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-27 23:34:59,352 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-27 23:34:59,353 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-27 23:34:59,354 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-27 23:34:59,355 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-27 23:34:59,356 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-27 23:34:59,357 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-27 23:34:59,358 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-27 23:34:59,359 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-27 23:34:59,360 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-27 23:34:59,361 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-27 23:34:59,363 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-27 23:34:59,365 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-27 23:34:59,367 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-27 23:34:59,368 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-27 23:34:59,370 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-27 23:34:59,371 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-27 23:34:59,373 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-27 23:34:59,374 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-27 23:34:59,374 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-27 23:34:59,375 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-27 23:34:59,376 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-27 23:34:59,377 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-27 23:34:59,377 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-27 23:34:59,378 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-27 23:34:59,379 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-27 23:34:59,380 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-27 23:34:59,381 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-27 23:34:59,381 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-27 23:34:59,382 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-27 23:34:59,382 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-27 23:34:59,383 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-27 23:34:59,384 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-27 23:34:59,385 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-27 23:34:59,385 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2019-11-27 23:34:59,400 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-27 23:34:59,401 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-27 23:34:59,402 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-27 23:34:59,403 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-27 23:34:59,403 INFO L138 SettingsManager]: * Use SBE=true [2019-11-27 23:34:59,403 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-27 23:34:59,404 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-27 23:34:59,404 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-27 23:34:59,404 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-27 23:34:59,404 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-27 23:34:59,405 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-27 23:34:59,405 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-27 23:34:59,405 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-27 23:34:59,406 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-27 23:34:59,406 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-27 23:34:59,406 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-27 23:34:59,406 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-27 23:34:59,407 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-27 23:34:59,407 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-27 23:34:59,407 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-27 23:34:59,408 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-27 23:34:59,408 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-27 23:34:59,408 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-27 23:34:59,409 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-27 23:34:59,409 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-27 23:34:59,409 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-27 23:34:59,409 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-11-27 23:34:59,410 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-27 23:34:59,410 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode 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 [2019-11-27 23:34:59,718 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-27 23:34:59,732 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-27 23:34:59,735 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-27 23:34:59,737 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-27 23:34:59,738 INFO L275 PluginConnector]: CDTParser initialized [2019-11-27 23:34:59,739 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/float-benchs/cast_union_loose.c [2019-11-27 23:34:59,812 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3832878ed/17fd8e1556464e95a87d979b084d1a71/FLAGc750e77e0 [2019-11-27 23:35:00,343 INFO L306 CDTParser]: Found 1 translation units. [2019-11-27 23:35:00,345 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-benchs/cast_union_loose.c [2019-11-27 23:35:00,352 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3832878ed/17fd8e1556464e95a87d979b084d1a71/FLAGc750e77e0 [2019-11-27 23:35:00,655 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3832878ed/17fd8e1556464e95a87d979b084d1a71 [2019-11-27 23:35:00,658 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-27 23:35:00,660 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-27 23:35:00,661 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-27 23:35:00,661 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-27 23:35:00,664 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-27 23:35:00,665 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.11 11:35:00" (1/1) ... [2019-11-27 23:35:00,668 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@36cbbb69 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:35:00, skipping insertion in model container [2019-11-27 23:35:00,668 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.11 11:35:00" (1/1) ... [2019-11-27 23:35:00,675 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-11-27 23:35:00,692 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-11-27 23:35:00,880 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-27 23:35:00,884 INFO L203 MainTranslator]: Completed pre-run [2019-11-27 23:35:00,904 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-27 23:35:00,980 INFO L208 MainTranslator]: Completed translation [2019-11-27 23:35:00,981 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:35:00 WrapperNode [2019-11-27 23:35:00,981 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-27 23:35:00,982 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-27 23:35:00,982 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-27 23:35:00,982 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-27 23:35:00,990 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:35:00" (1/1) ... [2019-11-27 23:35:01,003 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:35:00" (1/1) ... [2019-11-27 23:35:01,025 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-27 23:35:01,026 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-27 23:35:01,026 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-27 23:35:01,026 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-27 23:35:01,034 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:35:00" (1/1) ... [2019-11-27 23:35:01,034 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:35:00" (1/1) ... [2019-11-27 23:35:01,036 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:35:00" (1/1) ... [2019-11-27 23:35:01,036 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:35:00" (1/1) ... [2019-11-27 23:35:01,044 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:35:00" (1/1) ... [2019-11-27 23:35:01,046 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:35:00" (1/1) ... [2019-11-27 23:35:01,047 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:35:00" (1/1) ... [2019-11-27 23:35:01,049 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-27 23:35:01,050 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-27 23:35:01,050 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-27 23:35:01,050 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-27 23:35:01,051 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:35:00" (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 [2019-11-27 23:35:01,112 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-11-27 23:35:01,112 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2019-11-27 23:35:01,112 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-11-27 23:35:01,112 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-27 23:35:01,114 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-27 23:35:01,114 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-11-27 23:35:01,115 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-11-27 23:35:01,347 INFO L292 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-27 23:35:01,347 INFO L297 CfgBuilder]: Removed 8 assume(true) statements. [2019-11-27 23:35:01,348 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.11 11:35:01 BoogieIcfgContainer [2019-11-27 23:35:01,349 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-27 23:35:01,350 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-27 23:35:01,350 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-27 23:35:01,354 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-27 23:35:01,354 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 27.11 11:35:00" (1/3) ... [2019-11-27 23:35:01,355 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@43798dd1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.11 11:35:01, skipping insertion in model container [2019-11-27 23:35:01,355 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:35:00" (2/3) ... [2019-11-27 23:35:01,356 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@43798dd1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.11 11:35:01, skipping insertion in model container [2019-11-27 23:35:01,356 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.11 11:35:01" (3/3) ... [2019-11-27 23:35:01,358 INFO L109 eAbstractionObserver]: Analyzing ICFG cast_union_loose.c [2019-11-27 23:35:01,369 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-27 23:35:01,377 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-11-27 23:35:01,395 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-11-27 23:35:01,446 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-27 23:35:01,446 INFO L374 AbstractCegarLoop]: Hoare is true [2019-11-27 23:35:01,447 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-27 23:35:01,447 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-27 23:35:01,447 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-27 23:35:01,448 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-27 23:35:01,448 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-27 23:35:01,448 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-27 23:35:01,471 INFO L276 IsEmpty]: Start isEmpty. Operand 10 states. [2019-11-27 23:35:01,479 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2019-11-27 23:35:01,480 INFO L402 BasicCegarLoop]: Found error trace [2019-11-27 23:35:01,481 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2019-11-27 23:35:01,482 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-27 23:35:01,497 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-27 23:35:01,498 INFO L82 PathProgramCache]: Analyzing trace with hash 28692803, now seen corresponding path program 1 times [2019-11-27 23:35:01,514 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-27 23:35:01,515 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [95087617] [2019-11-27 23:35:01,515 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-27 23:35:01,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-27 23:35:01,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-27 23:35:01,760 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-27 23:35:01,762 INFO L475 BasicCegarLoop]: Counterexample might be feasible [2019-11-27 23:35:01,802 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 27.11 11:35:01 BoogieIcfgContainer [2019-11-27 23:35:01,803 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-11-27 23:35:01,803 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-27 23:35:01,804 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-27 23:35:01,804 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-27 23:35:01,805 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.11 11:35:01" (3/4) ... [2019-11-27 23:35:01,814 INFO L140 WitnessPrinter]: No result that supports witness generation found [2019-11-27 23:35:01,814 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-27 23:35:01,819 INFO L168 Benchmark]: Toolchain (without parser) took 1156.46 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 127.9 MB). Free memory was 952.3 MB in the beginning and 1.1 GB in the end (delta: -132.3 MB). There was no memory consumed. Max. memory is 11.5 GB. [2019-11-27 23:35:01,820 INFO L168 Benchmark]: CDTParser took 0.37 ms. Allocated memory is still 1.0 GB. Free memory is still 981.8 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-27 23:35:01,823 INFO L168 Benchmark]: CACSL2BoogieTranslator took 320.98 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 127.9 MB). Free memory was 952.3 MB in the beginning and 1.1 GB in the end (delta: -171.9 MB). Peak memory consumption was 20.6 MB. Max. memory is 11.5 GB. [2019-11-27 23:35:01,824 INFO L168 Benchmark]: Boogie Procedure Inliner took 43.74 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. [2019-11-27 23:35:01,826 INFO L168 Benchmark]: Boogie Preprocessor took 23.62 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: 6.7 MB). Peak memory consumption was 6.7 MB. Max. memory is 11.5 GB. [2019-11-27 23:35:01,828 INFO L168 Benchmark]: RCFGBuilder took 298.74 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: 17.8 MB). Peak memory consumption was 17.8 MB. Max. memory is 11.5 GB. [2019-11-27 23:35:01,829 INFO L168 Benchmark]: TraceAbstraction took 453.25 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: 15.1 MB). Peak memory consumption was 15.1 MB. Max. memory is 11.5 GB. [2019-11-27 23:35:01,832 INFO L168 Benchmark]: Witness Printer took 10.76 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. [2019-11-27 23:35:01,845 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.37 ms. Allocated memory is still 1.0 GB. Free memory is still 981.8 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 320.98 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 127.9 MB). Free memory was 952.3 MB in the beginning and 1.1 GB in the end (delta: -171.9 MB). Peak memory consumption was 20.6 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 43.74 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. * Boogie Preprocessor took 23.62 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: 6.7 MB). Peak memory consumption was 6.7 MB. Max. memory is 11.5 GB. * RCFGBuilder took 298.74 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: 17.8 MB). Peak memory consumption was 17.8 MB. Max. memory is 11.5 GB. * TraceAbstraction took 453.25 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: 15.1 MB). Peak memory consumption was 15.1 MB. Max. memory is 11.5 GB. * Witness Printer took 10.76 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. Result: UNSAFE, OverallTime: 0.3s, OverallIterations: 1, TraceHistogramMax: 1, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, 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 DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 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, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, SIFA: 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 0.1.24-30f4e4a [2019-11-27 23:35:03,846 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-27 23:35:03,850 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-27 23:35:03,867 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-27 23:35:03,868 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-27 23:35:03,870 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-27 23:35:03,872 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-27 23:35:03,882 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-27 23:35:03,888 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-27 23:35:03,891 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-27 23:35:03,892 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-27 23:35:03,895 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-27 23:35:03,895 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-27 23:35:03,898 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-27 23:35:03,900 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-27 23:35:03,901 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-27 23:35:03,903 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-27 23:35:03,904 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-27 23:35:03,906 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-27 23:35:03,911 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-27 23:35:03,916 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-27 23:35:03,922 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-27 23:35:03,924 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-27 23:35:03,926 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-27 23:35:03,929 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-27 23:35:03,929 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-27 23:35:03,930 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-27 23:35:03,932 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-27 23:35:03,932 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-27 23:35:03,933 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-27 23:35:03,934 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-27 23:35:03,936 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-27 23:35:03,936 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-27 23:35:03,938 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-27 23:35:03,939 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-27 23:35:03,940 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-27 23:35:03,941 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-27 23:35:03,941 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-27 23:35:03,941 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-27 23:35:03,942 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-27 23:35:03,944 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-27 23:35:03,945 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2019-11-27 23:35:03,975 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-27 23:35:03,976 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-27 23:35:03,977 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-27 23:35:03,977 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-27 23:35:03,977 INFO L138 SettingsManager]: * Use SBE=true [2019-11-27 23:35:03,978 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-27 23:35:03,978 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-27 23:35:03,978 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-27 23:35:03,978 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-27 23:35:03,979 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-27 23:35:03,979 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-27 23:35:03,979 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-27 23:35:03,979 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2019-11-27 23:35:03,979 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2019-11-27 23:35:03,980 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-27 23:35:03,980 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-27 23:35:03,980 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-27 23:35:03,980 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-27 23:35:03,981 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-27 23:35:03,981 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-27 23:35:03,981 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-27 23:35:03,981 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-27 23:35:03,981 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-27 23:35:03,982 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-27 23:35:03,982 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-27 23:35:03,982 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-27 23:35:03,982 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2019-11-27 23:35:03,983 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2019-11-27 23:35:03,983 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-27 23:35:03,983 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-11-27 23:35:03,983 INFO L138 SettingsManager]: * Logic for external solver=AUFBV 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 [2019-11-27 23:35:04,297 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-27 23:35:04,311 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-27 23:35:04,315 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-27 23:35:04,317 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-27 23:35:04,317 INFO L275 PluginConnector]: CDTParser initialized [2019-11-27 23:35:04,318 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/float-benchs/cast_union_loose.c [2019-11-27 23:35:04,381 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/44037bdf3/ac0908b990cb49b986182a62f820246d/FLAGf5ba36281 [2019-11-27 23:35:04,857 INFO L306 CDTParser]: Found 1 translation units. [2019-11-27 23:35:04,859 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-benchs/cast_union_loose.c [2019-11-27 23:35:04,866 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/44037bdf3/ac0908b990cb49b986182a62f820246d/FLAGf5ba36281 [2019-11-27 23:35:05,254 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/44037bdf3/ac0908b990cb49b986182a62f820246d [2019-11-27 23:35:05,258 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-27 23:35:05,260 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-27 23:35:05,262 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-27 23:35:05,262 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-27 23:35:05,266 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-27 23:35:05,268 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.11 11:35:05" (1/1) ... [2019-11-27 23:35:05,271 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@737469c6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:35:05, skipping insertion in model container [2019-11-27 23:35:05,272 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.11 11:35:05" (1/1) ... [2019-11-27 23:35:05,281 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-11-27 23:35:05,301 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-11-27 23:35:05,592 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-27 23:35:05,602 INFO L203 MainTranslator]: Completed pre-run [2019-11-27 23:35:05,643 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-27 23:35:05,744 INFO L208 MainTranslator]: Completed translation [2019-11-27 23:35:05,744 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:35:05 WrapperNode [2019-11-27 23:35:05,744 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-27 23:35:05,745 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-27 23:35:05,745 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-27 23:35:05,745 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-27 23:35:05,757 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:35:05" (1/1) ... [2019-11-27 23:35:05,780 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:35:05" (1/1) ... [2019-11-27 23:35:05,807 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-27 23:35:05,808 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-27 23:35:05,808 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-27 23:35:05,808 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-27 23:35:05,818 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:35:05" (1/1) ... [2019-11-27 23:35:05,819 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:35:05" (1/1) ... [2019-11-27 23:35:05,827 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:35:05" (1/1) ... [2019-11-27 23:35:05,828 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:35:05" (1/1) ... [2019-11-27 23:35:05,851 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:35:05" (1/1) ... [2019-11-27 23:35:05,854 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:35:05" (1/1) ... [2019-11-27 23:35:05,863 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:35:05" (1/1) ... [2019-11-27 23:35:05,868 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-27 23:35:05,869 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-27 23:35:05,869 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-27 23:35:05,869 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-27 23:35:05,870 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:35:05" (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 [2019-11-27 23:35:05,931 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE8 [2019-11-27 23:35:05,931 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-11-27 23:35:05,931 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2019-11-27 23:35:05,931 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-27 23:35:05,931 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-27 23:35:05,932 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-11-27 23:35:05,932 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2019-11-27 23:35:06,289 INFO L292 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-27 23:35:06,290 INFO L297 CfgBuilder]: Removed 8 assume(true) statements. [2019-11-27 23:35:06,291 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.11 11:35:06 BoogieIcfgContainer [2019-11-27 23:35:06,291 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-27 23:35:06,293 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-27 23:35:06,293 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-27 23:35:06,296 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-27 23:35:06,298 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 27.11 11:35:05" (1/3) ... [2019-11-27 23:35:06,299 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@19b42aca and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.11 11:35:06, skipping insertion in model container [2019-11-27 23:35:06,299 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:35:05" (2/3) ... [2019-11-27 23:35:06,299 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@19b42aca and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.11 11:35:06, skipping insertion in model container [2019-11-27 23:35:06,300 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.11 11:35:06" (3/3) ... [2019-11-27 23:35:06,302 INFO L109 eAbstractionObserver]: Analyzing ICFG cast_union_loose.c [2019-11-27 23:35:06,313 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-27 23:35:06,321 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-11-27 23:35:06,335 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-11-27 23:35:06,359 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-27 23:35:06,359 INFO L374 AbstractCegarLoop]: Hoare is true [2019-11-27 23:35:06,360 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-27 23:35:06,360 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-27 23:35:06,360 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-27 23:35:06,361 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-27 23:35:06,361 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-27 23:35:06,361 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-27 23:35:06,376 INFO L276 IsEmpty]: Start isEmpty. Operand 10 states. [2019-11-27 23:35:06,382 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2019-11-27 23:35:06,382 INFO L402 BasicCegarLoop]: Found error trace [2019-11-27 23:35:06,383 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2019-11-27 23:35:06,384 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-27 23:35:06,391 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-27 23:35:06,391 INFO L82 PathProgramCache]: Analyzing trace with hash 28692803, now seen corresponding path program 1 times [2019-11-27 23:35:06,404 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-27 23:35:06,405 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1063852753] [2019-11-27 23:35:06,405 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY 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 [2019-11-27 23:35:06,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-27 23:35:06,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-27 23:35:06,836 INFO L174 FreeRefinementEngine]: Strategy WOLF found a feasible trace [2019-11-27 23:35:06,837 INFO L475 BasicCegarLoop]: Counterexample might be feasible [2019-11-27 23:35:07,038 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 mathsat -unsat_core_generation=3 [2019-11-27 23:35:07,065 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 27.11 11:35:07 BoogieIcfgContainer [2019-11-27 23:35:07,066 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-11-27 23:35:07,067 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-27 23:35:07,067 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-27 23:35:07,067 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-27 23:35:07,068 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.11 11:35:06" (3/4) ... [2019-11-27 23:35:07,071 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2019-11-27 23:35:07,122 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2019-11-27 23:35:07,122 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-27 23:35:07,125 INFO L168 Benchmark]: Toolchain (without parser) took 1864.21 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 140.0 MB). Free memory was 957.7 MB in the beginning and 1.1 GB in the end (delta: -128.8 MB). Peak memory consumption was 11.2 MB. Max. memory is 11.5 GB. [2019-11-27 23:35:07,125 INFO L168 Benchmark]: CDTParser took 0.22 ms. Allocated memory is still 1.0 GB. Free memory is still 987.2 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-27 23:35:07,126 INFO L168 Benchmark]: CACSL2BoogieTranslator took 483.02 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 140.0 MB). Free memory was 957.7 MB in the beginning and 1.1 GB in the end (delta: -178.5 MB). Peak memory consumption was 20.8 MB. Max. memory is 11.5 GB. [2019-11-27 23:35:07,127 INFO L168 Benchmark]: Boogie Procedure Inliner took 62.47 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: 6.6 MB). Peak memory consumption was 6.6 MB. Max. memory is 11.5 GB. [2019-11-27 23:35:07,127 INFO L168 Benchmark]: Boogie Preprocessor took 60.70 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. [2019-11-27 23:35:07,128 INFO L168 Benchmark]: RCFGBuilder took 422.70 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: 17.7 MB). Peak memory consumption was 17.7 MB. Max. memory is 11.5 GB. [2019-11-27 23:35:07,129 INFO L168 Benchmark]: TraceAbstraction took 773.87 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: 18.8 MB). Peak memory consumption was 18.8 MB. Max. memory is 11.5 GB. [2019-11-27 23:35:07,130 INFO L168 Benchmark]: Witness Printer took 55.57 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: 6.6 MB). Peak memory consumption was 6.6 MB. Max. memory is 11.5 GB. [2019-11-27 23:35:07,133 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22 ms. Allocated memory is still 1.0 GB. Free memory is still 987.2 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 483.02 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 140.0 MB). Free memory was 957.7 MB in the beginning and 1.1 GB in the end (delta: -178.5 MB). Peak memory consumption was 20.8 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 62.47 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: 6.6 MB). Peak memory consumption was 6.6 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 60.70 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. * RCFGBuilder took 422.70 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: 17.7 MB). Peak memory consumption was 17.7 MB. Max. memory is 11.5 GB. * TraceAbstraction took 773.87 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: 18.8 MB). Peak memory consumption was 18.8 MB. Max. memory is 11.5 GB. * Witness Printer took 55.57 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: 6.6 MB). Peak memory consumption was 6.6 MB. 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. Result: UNSAFE, OverallTime: 0.6s, OverallIterations: 1, TraceHistogramMax: 1, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, 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 DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s 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, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! Received shutdown request...