./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 cad46833 Calling Ultimate with: /usr/lib/jvm/java-8-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_42e377c0-9f7b-4a4b-8747-a35cf1588853/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_42e377c0-9f7b-4a4b-8747-a35cf1588853/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_42e377c0-9f7b-4a4b-8747-a35cf1588853/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_42e377c0-9f7b-4a4b-8747-a35cf1588853/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/float-benchs/cast_union_loose.c -s /tmp/vcloud-vcloud-master/worker/run_dir_42e377c0-9f7b-4a4b-8747-a35cf1588853/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_42e377c0-9f7b-4a4b-8747-a35cf1588853/bin/uautomizer --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/lib/jvm/java-8-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_42e377c0-9f7b-4a4b-8747-a35cf1588853/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_42e377c0-9f7b-4a4b-8747-a35cf1588853/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_42e377c0-9f7b-4a4b-8747-a35cf1588853/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_42e377c0-9f7b-4a4b-8747-a35cf1588853/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/float-benchs/cast_union_loose.c -s /tmp/vcloud-vcloud-master/worker/run_dir_42e377c0-9f7b-4a4b-8747-a35cf1588853/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_42e377c0-9f7b-4a4b-8747-a35cf1588853/bin/uautomizer --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-cad4683 [2019-11-16 00:35:42,373 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-16 00:35:42,375 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-16 00:35:42,392 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-16 00:35:42,392 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-16 00:35:42,394 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-16 00:35:42,397 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-16 00:35:42,408 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-16 00:35:42,413 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-16 00:35:42,417 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-16 00:35:42,419 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-16 00:35:42,421 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-16 00:35:42,422 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-16 00:35:42,424 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-16 00:35:42,426 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-16 00:35:42,427 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-16 00:35:42,428 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-16 00:35:42,430 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-16 00:35:42,433 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-16 00:35:42,438 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-16 00:35:42,441 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-16 00:35:42,444 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-16 00:35:42,447 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-16 00:35:42,448 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-16 00:35:42,451 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-16 00:35:42,452 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-16 00:35:42,452 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-16 00:35:42,454 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-16 00:35:42,454 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-16 00:35:42,455 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-16 00:35:42,456 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-16 00:35:42,457 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-16 00:35:42,457 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-16 00:35:42,458 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-16 00:35:42,460 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-16 00:35:42,461 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-16 00:35:42,462 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-16 00:35:42,462 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-16 00:35:42,462 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-16 00:35:42,463 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-16 00:35:42,464 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-16 00:35:42,465 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_42e377c0-9f7b-4a4b-8747-a35cf1588853/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf [2019-11-16 00:35:42,495 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-16 00:35:42,505 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-16 00:35:42,507 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-16 00:35:42,507 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-16 00:35:42,508 INFO L138 SettingsManager]: * Use SBE=true [2019-11-16 00:35:42,508 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-16 00:35:42,508 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-16 00:35:42,508 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-16 00:35:42,509 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-16 00:35:42,509 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-16 00:35:42,509 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-16 00:35:42,509 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-16 00:35:42,510 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-16 00:35:42,510 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-16 00:35:42,510 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-16 00:35:42,510 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-16 00:35:42,511 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-16 00:35:42,511 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-16 00:35:42,511 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-16 00:35:42,512 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-16 00:35:42,512 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-16 00:35:42,512 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-16 00:35:42,512 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-16 00:35:42,515 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-16 00:35:42,515 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-16 00:35:42,515 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-16 00:35:42,516 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-11-16 00:35:42,516 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-16 00:35:42,516 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 -> /tmp/vcloud-vcloud-master/worker/run_dir_42e377c0-9f7b-4a4b-8747-a35cf1588853/bin/uautomizer 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 [2019-11-16 00:35:42,555 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-16 00:35:42,572 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-16 00:35:42,576 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-16 00:35:42,577 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-16 00:35:42,578 INFO L275 PluginConnector]: CDTParser initialized [2019-11-16 00:35:42,579 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_42e377c0-9f7b-4a4b-8747-a35cf1588853/bin/uautomizer/../../sv-benchmarks/c/float-benchs/cast_union_loose.c [2019-11-16 00:35:42,651 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_42e377c0-9f7b-4a4b-8747-a35cf1588853/bin/uautomizer/data/0787162d2/3bf16efe50554c5b8f6c3e6c3af79241/FLAG640a04e8e [2019-11-16 00:35:43,107 INFO L306 CDTParser]: Found 1 translation units. [2019-11-16 00:35:43,107 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_42e377c0-9f7b-4a4b-8747-a35cf1588853/sv-benchmarks/c/float-benchs/cast_union_loose.c [2019-11-16 00:35:43,113 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_42e377c0-9f7b-4a4b-8747-a35cf1588853/bin/uautomizer/data/0787162d2/3bf16efe50554c5b8f6c3e6c3af79241/FLAG640a04e8e [2019-11-16 00:35:43,526 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_42e377c0-9f7b-4a4b-8747-a35cf1588853/bin/uautomizer/data/0787162d2/3bf16efe50554c5b8f6c3e6c3af79241 [2019-11-16 00:35:43,529 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-16 00:35:43,530 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-16 00:35:43,531 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-16 00:35:43,531 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-16 00:35:43,535 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-16 00:35:43,536 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 12:35:43" (1/1) ... [2019-11-16 00:35:43,538 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6dc43f4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:35:43, skipping insertion in model container [2019-11-16 00:35:43,539 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 12:35:43" (1/1) ... [2019-11-16 00:35:43,545 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-11-16 00:35:43,560 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-11-16 00:35:43,774 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-16 00:35:43,780 INFO L188 MainTranslator]: Completed pre-run [2019-11-16 00:35:43,806 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-16 00:35:43,825 INFO L192 MainTranslator]: Completed translation [2019-11-16 00:35:43,826 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:35:43 WrapperNode [2019-11-16 00:35:43,826 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-16 00:35:43,827 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-16 00:35:43,827 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-16 00:35:43,827 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-16 00:35:43,837 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:35:43" (1/1) ... [2019-11-16 00:35:43,846 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:35:43" (1/1) ... [2019-11-16 00:35:43,873 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-16 00:35:43,876 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-16 00:35:43,876 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-16 00:35:43,876 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-16 00:35:43,885 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:35:43" (1/1) ... [2019-11-16 00:35:43,886 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:35:43" (1/1) ... [2019-11-16 00:35:43,899 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:35:43" (1/1) ... [2019-11-16 00:35:43,899 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:35:43" (1/1) ... [2019-11-16 00:35:43,906 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:35:43" (1/1) ... [2019-11-16 00:35:43,908 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:35:43" (1/1) ... [2019-11-16 00:35:43,909 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:35:43" (1/1) ... [2019-11-16 00:35:43,911 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-16 00:35:43,912 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-16 00:35:43,912 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-16 00:35:43,912 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-16 00:35:43,915 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:35:43" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_42e377c0-9f7b-4a4b-8747-a35cf1588853/bin/uautomizer/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 [2019-11-16 00:35:43,984 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-11-16 00:35:43,985 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2019-11-16 00:35:43,985 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-11-16 00:35:43,985 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-16 00:35:43,986 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-16 00:35:43,986 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-11-16 00:35:43,986 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-11-16 00:35:44,248 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-16 00:35:44,248 INFO L284 CfgBuilder]: Removed 8 assume(true) statements. [2019-11-16 00:35:44,249 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 12:35:44 BoogieIcfgContainer [2019-11-16 00:35:44,250 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-16 00:35:44,251 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-16 00:35:44,251 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-16 00:35:44,254 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-16 00:35:44,254 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.11 12:35:43" (1/3) ... [2019-11-16 00:35:44,255 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6bd78e70 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 12:35:44, skipping insertion in model container [2019-11-16 00:35:44,255 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:35:43" (2/3) ... [2019-11-16 00:35:44,256 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6bd78e70 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 12:35:44, skipping insertion in model container [2019-11-16 00:35:44,256 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 12:35:44" (3/3) ... [2019-11-16 00:35:44,257 INFO L109 eAbstractionObserver]: Analyzing ICFG cast_union_loose.c [2019-11-16 00:35:44,269 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-16 00:35:44,276 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-11-16 00:35:44,287 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-11-16 00:35:44,337 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-16 00:35:44,339 INFO L374 AbstractCegarLoop]: Hoare is true [2019-11-16 00:35:44,340 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-16 00:35:44,340 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-16 00:35:44,340 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-16 00:35:44,340 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-16 00:35:44,340 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-16 00:35:44,341 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-16 00:35:44,355 INFO L276 IsEmpty]: Start isEmpty. Operand 10 states. [2019-11-16 00:35:44,360 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2019-11-16 00:35:44,361 INFO L372 BasicCegarLoop]: Found error trace [2019-11-16 00:35:44,362 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2019-11-16 00:35:44,364 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-16 00:35:44,370 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-16 00:35:44,370 INFO L82 PathProgramCache]: Analyzing trace with hash 28692803, now seen corresponding path program 1 times [2019-11-16 00:35:44,379 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-11-16 00:35:44,380 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1365994932] [2019-11-16 00:35:44,380 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-16 00:35:44,380 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-16 00:35:44,381 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-16 00:35:44,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-16 00:35:44,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-16 00:35:44,569 INFO L168 tionRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-16 00:35:44,570 INFO L445 BasicCegarLoop]: Counterexample might be feasible [2019-11-16 00:35:44,598 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 16.11 12:35:44 BoogieIcfgContainer [2019-11-16 00:35:44,598 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-11-16 00:35:44,598 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-16 00:35:44,599 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-16 00:35:44,599 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-16 00:35:44,600 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 12:35:44" (3/4) ... [2019-11-16 00:35:44,605 INFO L140 WitnessPrinter]: No result that supports witness generation found [2019-11-16 00:35:44,605 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-16 00:35:44,609 INFO L168 Benchmark]: Toolchain (without parser) took 1076.91 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 88.6 MB). Free memory was 950.2 MB in the beginning and 1.0 GB in the end (delta: -90.6 MB). There was no memory consumed. Max. memory is 11.5 GB. [2019-11-16 00:35:44,610 INFO L168 Benchmark]: CDTParser took 0.36 ms. Allocated memory is still 1.0 GB. Free memory is still 967.6 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-16 00:35:44,611 INFO L168 Benchmark]: CACSL2BoogieTranslator took 295.53 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 88.6 MB). Free memory was 950.2 MB in the beginning and 1.1 GB in the end (delta: -128.9 MB). Peak memory consumption was 23.3 MB. Max. memory is 11.5 GB. [2019-11-16 00:35:44,613 INFO L168 Benchmark]: Boogie Procedure Inliner took 48.42 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. [2019-11-16 00:35:44,613 INFO L168 Benchmark]: Boogie Preprocessor took 35.62 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. [2019-11-16 00:35:44,614 INFO L168 Benchmark]: RCFGBuilder took 338.20 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: 22.4 MB). Peak memory consumption was 22.4 MB. Max. memory is 11.5 GB. [2019-11-16 00:35:44,615 INFO L168 Benchmark]: TraceAbstraction took 347.29 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 15.9 MB). Peak memory consumption was 15.9 MB. Max. memory is 11.5 GB. [2019-11-16 00:35:44,616 INFO L168 Benchmark]: Witness Printer took 7.13 ms. Allocated memory is still 1.1 GB. Free memory is still 1.0 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-16 00:35:44,625 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.36 ms. Allocated memory is still 1.0 GB. Free memory is still 967.6 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 295.53 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 88.6 MB). Free memory was 950.2 MB in the beginning and 1.1 GB in the end (delta: -128.9 MB). Peak memory consumption was 23.3 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 48.42 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. * Boogie Preprocessor took 35.62 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. * RCFGBuilder took 338.20 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: 22.4 MB). Peak memory consumption was 22.4 MB. Max. memory is 11.5 GB. * TraceAbstraction took 347.29 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 15.9 MB). Peak memory consumption was 15.9 MB. Max. memory is 11.5 GB. * Witness Printer took 7.13 ms. Allocated memory is still 1.1 GB. Free memory is still 1.0 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: 0.2s, 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-cad4683 [2019-11-16 00:35:46,925 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-16 00:35:46,927 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-16 00:35:46,944 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-16 00:35:46,945 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-16 00:35:46,946 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-16 00:35:46,948 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-16 00:35:46,950 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-16 00:35:46,952 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-16 00:35:46,953 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-16 00:35:46,954 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-16 00:35:46,956 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-16 00:35:46,956 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-16 00:35:46,957 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-16 00:35:46,958 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-16 00:35:46,960 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-16 00:35:46,961 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-16 00:35:46,962 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-16 00:35:46,964 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-16 00:35:46,967 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-16 00:35:46,969 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-16 00:35:46,970 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-16 00:35:46,971 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-16 00:35:46,972 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-16 00:35:46,975 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-16 00:35:46,976 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-16 00:35:46,976 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-16 00:35:46,977 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-16 00:35:46,978 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-16 00:35:46,979 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-16 00:35:46,979 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-16 00:35:46,980 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-16 00:35:46,981 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-16 00:35:46,982 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-16 00:35:46,983 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-16 00:35:46,983 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-16 00:35:46,984 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-16 00:35:46,984 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-16 00:35:46,985 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-16 00:35:46,986 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-16 00:35:46,986 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-16 00:35:46,987 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_42e377c0-9f7b-4a4b-8747-a35cf1588853/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2019-11-16 00:35:47,005 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-16 00:35:47,006 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-16 00:35:47,007 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-16 00:35:47,007 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-16 00:35:47,007 INFO L138 SettingsManager]: * Use SBE=true [2019-11-16 00:35:47,008 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-16 00:35:47,008 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-16 00:35:47,008 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-16 00:35:47,008 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-16 00:35:47,008 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-16 00:35:47,009 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-16 00:35:47,009 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-16 00:35:47,009 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2019-11-16 00:35:47,009 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2019-11-16 00:35:47,009 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-16 00:35:47,010 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-16 00:35:47,010 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-16 00:35:47,010 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-16 00:35:47,010 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-16 00:35:47,010 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-16 00:35:47,011 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-16 00:35:47,011 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-16 00:35:47,011 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-16 00:35:47,011 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-16 00:35:47,012 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-16 00:35:47,012 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-16 00:35:47,012 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2019-11-16 00:35:47,012 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2019-11-16 00:35:47,012 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-16 00:35:47,013 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-11-16 00:35:47,013 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 -> /tmp/vcloud-vcloud-master/worker/run_dir_42e377c0-9f7b-4a4b-8747-a35cf1588853/bin/uautomizer 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 [2019-11-16 00:35:47,058 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-16 00:35:47,068 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-16 00:35:47,071 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-16 00:35:47,072 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-16 00:35:47,073 INFO L275 PluginConnector]: CDTParser initialized [2019-11-16 00:35:47,074 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_42e377c0-9f7b-4a4b-8747-a35cf1588853/bin/uautomizer/../../sv-benchmarks/c/float-benchs/cast_union_loose.c [2019-11-16 00:35:47,133 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_42e377c0-9f7b-4a4b-8747-a35cf1588853/bin/uautomizer/data/41bc90d14/b3880e39e95640a1923dbc022e4e0926/FLAG63d075129 [2019-11-16 00:35:47,529 INFO L306 CDTParser]: Found 1 translation units. [2019-11-16 00:35:47,529 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_42e377c0-9f7b-4a4b-8747-a35cf1588853/sv-benchmarks/c/float-benchs/cast_union_loose.c [2019-11-16 00:35:47,535 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_42e377c0-9f7b-4a4b-8747-a35cf1588853/bin/uautomizer/data/41bc90d14/b3880e39e95640a1923dbc022e4e0926/FLAG63d075129 [2019-11-16 00:35:47,909 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_42e377c0-9f7b-4a4b-8747-a35cf1588853/bin/uautomizer/data/41bc90d14/b3880e39e95640a1923dbc022e4e0926 [2019-11-16 00:35:47,912 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-16 00:35:47,920 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-16 00:35:47,920 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-16 00:35:47,920 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-16 00:35:47,924 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-16 00:35:47,925 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 12:35:47" (1/1) ... [2019-11-16 00:35:47,927 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5bfe215f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:35:47, skipping insertion in model container [2019-11-16 00:35:47,928 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 12:35:47" (1/1) ... [2019-11-16 00:35:47,934 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-11-16 00:35:47,950 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-11-16 00:35:48,185 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-16 00:35:48,193 INFO L188 MainTranslator]: Completed pre-run [2019-11-16 00:35:48,238 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-16 00:35:48,275 INFO L192 MainTranslator]: Completed translation [2019-11-16 00:35:48,275 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:35:48 WrapperNode [2019-11-16 00:35:48,276 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-16 00:35:48,277 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-16 00:35:48,277 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-16 00:35:48,278 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-16 00:35:48,364 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:35:48" (1/1) ... [2019-11-16 00:35:48,388 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:35:48" (1/1) ... [2019-11-16 00:35:48,406 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-16 00:35:48,406 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-16 00:35:48,406 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-16 00:35:48,406 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-16 00:35:48,413 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:35:48" (1/1) ... [2019-11-16 00:35:48,413 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:35:48" (1/1) ... [2019-11-16 00:35:48,417 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:35:48" (1/1) ... [2019-11-16 00:35:48,417 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:35:48" (1/1) ... [2019-11-16 00:35:48,427 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:35:48" (1/1) ... [2019-11-16 00:35:48,429 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:35:48" (1/1) ... [2019-11-16 00:35:48,431 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:35:48" (1/1) ... [2019-11-16 00:35:48,434 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-16 00:35:48,434 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-16 00:35:48,434 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-16 00:35:48,434 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-16 00:35:48,435 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:35:48" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_42e377c0-9f7b-4a4b-8747-a35cf1588853/bin/uautomizer/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 [2019-11-16 00:35:48,487 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE8 [2019-11-16 00:35:48,487 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-11-16 00:35:48,487 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2019-11-16 00:35:48,488 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-16 00:35:48,488 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-16 00:35:48,488 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-11-16 00:35:48,488 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2019-11-16 00:35:48,769 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-16 00:35:48,769 INFO L284 CfgBuilder]: Removed 8 assume(true) statements. [2019-11-16 00:35:48,771 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 12:35:48 BoogieIcfgContainer [2019-11-16 00:35:48,771 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-16 00:35:48,772 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-16 00:35:48,772 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-16 00:35:48,776 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-16 00:35:48,776 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.11 12:35:47" (1/3) ... [2019-11-16 00:35:48,777 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1ba640e6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 12:35:48, skipping insertion in model container [2019-11-16 00:35:48,777 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:35:48" (2/3) ... [2019-11-16 00:35:48,777 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1ba640e6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 12:35:48, skipping insertion in model container [2019-11-16 00:35:48,778 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 12:35:48" (3/3) ... [2019-11-16 00:35:48,780 INFO L109 eAbstractionObserver]: Analyzing ICFG cast_union_loose.c [2019-11-16 00:35:48,790 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-16 00:35:48,798 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-11-16 00:35:48,810 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-11-16 00:35:48,829 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-16 00:35:48,829 INFO L374 AbstractCegarLoop]: Hoare is true [2019-11-16 00:35:48,830 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-16 00:35:48,830 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-16 00:35:48,830 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-16 00:35:48,830 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-16 00:35:48,830 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-16 00:35:48,830 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-16 00:35:48,842 INFO L276 IsEmpty]: Start isEmpty. Operand 10 states. [2019-11-16 00:35:48,847 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2019-11-16 00:35:48,847 INFO L372 BasicCegarLoop]: Found error trace [2019-11-16 00:35:48,848 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2019-11-16 00:35:48,850 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-16 00:35:48,854 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-16 00:35:48,855 INFO L82 PathProgramCache]: Analyzing trace with hash 28692803, now seen corresponding path program 1 times [2019-11-16 00:35:48,864 INFO L157 tionRefinementEngine]: Executing refinement strategy WOLF [2019-11-16 00:35:48,865 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1427507666] [2019-11-16 00:35:48,865 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_42e377c0-9f7b-4a4b-8747-a35cf1588853/bin/uautomizer/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 [2019-11-16 00:35:49,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-16 00:35:49,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-16 00:35:49,304 INFO L168 tionRefinementEngine]: Strategy WOLF found a feasible trace [2019-11-16 00:35:49,305 INFO L445 BasicCegarLoop]: Counterexample might be feasible [2019-11-16 00:35:49,506 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 mathsat -unsat_core_generation=3 [2019-11-16 00:35:49,528 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 16.11 12:35:49 BoogieIcfgContainer [2019-11-16 00:35:49,528 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-11-16 00:35:49,529 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-16 00:35:49,529 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-16 00:35:49,529 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-16 00:35:49,530 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 12:35:48" (3/4) ... [2019-11-16 00:35:49,532 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2019-11-16 00:35:49,576 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_42e377c0-9f7b-4a4b-8747-a35cf1588853/bin/uautomizer/witness.graphml [2019-11-16 00:35:49,576 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-16 00:35:49,578 INFO L168 Benchmark]: Toolchain (without parser) took 1664.98 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 113.2 MB). Free memory was 951.0 MB in the beginning and 1.1 GB in the end (delta: -111.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 11.5 GB. [2019-11-16 00:35:49,579 INFO L168 Benchmark]: CDTParser took 0.35 ms. Allocated memory is still 1.0 GB. Free memory is still 977.9 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-16 00:35:49,580 INFO L168 Benchmark]: CACSL2BoogieTranslator took 355.94 ms. Allocated memory is still 1.0 GB. Free memory was 951.0 MB in the beginning and 940.3 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2019-11-16 00:35:49,586 INFO L168 Benchmark]: Boogie Procedure Inliner took 129.39 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 113.2 MB). Free memory was 940.3 MB in the beginning and 1.1 GB in the end (delta: -161.9 MB). Peak memory consumption was 12.6 MB. Max. memory is 11.5 GB. [2019-11-16 00:35:49,586 INFO L168 Benchmark]: Boogie Preprocessor took 27.48 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. [2019-11-16 00:35:49,587 INFO L168 Benchmark]: RCFGBuilder took 337.01 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: 20.2 MB). Peak memory consumption was 20.2 MB. Max. memory is 11.5 GB. [2019-11-16 00:35:49,589 INFO L168 Benchmark]: TraceAbstraction took 756.13 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: 19.9 MB). Peak memory consumption was 19.9 MB. Max. memory is 11.5 GB. [2019-11-16 00:35:49,589 INFO L168 Benchmark]: Witness Printer took 47.69 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. [2019-11-16 00:35:49,592 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.35 ms. Allocated memory is still 1.0 GB. Free memory is still 977.9 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 355.94 ms. Allocated memory is still 1.0 GB. Free memory was 951.0 MB in the beginning and 940.3 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 129.39 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 113.2 MB). Free memory was 940.3 MB in the beginning and 1.1 GB in the end (delta: -161.9 MB). Peak memory consumption was 12.6 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 27.48 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. * RCFGBuilder took 337.01 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: 20.2 MB). Peak memory consumption was 20.2 MB. Max. memory is 11.5 GB. * TraceAbstraction took 756.13 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: 19.9 MB). Peak memory consumption was 19.9 MB. Max. memory is 11.5 GB. * Witness Printer took 47.69 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. 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, 0.1s 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, 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...