./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/float-benchs/cast_float_union.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version a4ecdabc Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_326bb89e-ae21-4028-9f80-3fc93c034e5a/bin/uautomizer/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_326bb89e-ae21-4028-9f80-3fc93c034e5a/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_326bb89e-ae21-4028-9f80-3fc93c034e5a/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_326bb89e-ae21-4028-9f80-3fc93c034e5a/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/float-benchs/cast_float_union.c -s /tmp/vcloud-vcloud-master/worker/run_dir_326bb89e-ae21-4028-9f80-3fc93c034e5a/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_326bb89e-ae21-4028-9f80-3fc93c034e5a/bin/uautomizer --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash bfa9b5ae03b552654908bc6467afad9021ca189c ..................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.0-a4ecdab [2020-11-28 03:05:08,459 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-28 03:05:08,482 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-28 03:05:08,554 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-28 03:05:08,555 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-28 03:05:08,562 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-28 03:05:08,565 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-28 03:05:08,576 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-28 03:05:08,580 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-28 03:05:08,590 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-28 03:05:08,591 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-28 03:05:08,593 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-28 03:05:08,593 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-28 03:05:08,595 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-28 03:05:08,596 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-28 03:05:08,598 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-28 03:05:08,603 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-28 03:05:08,610 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-28 03:05:08,612 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-28 03:05:08,620 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-28 03:05:08,625 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-28 03:05:08,628 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-28 03:05:08,631 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-28 03:05:08,633 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-28 03:05:08,641 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-28 03:05:08,642 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-28 03:05:08,642 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-28 03:05:08,645 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-28 03:05:08,646 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-28 03:05:08,647 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-28 03:05:08,648 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-28 03:05:08,649 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-28 03:05:08,652 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-28 03:05:08,654 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-28 03:05:08,656 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-28 03:05:08,656 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-28 03:05:08,658 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-28 03:05:08,658 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-28 03:05:08,658 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-28 03:05:08,660 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-28 03:05:08,660 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-28 03:05:08,664 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_326bb89e-ae21-4028-9f80-3fc93c034e5a/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf [2020-11-28 03:05:08,720 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-28 03:05:08,724 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-28 03:05:08,726 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-11-28 03:05:08,726 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-11-28 03:05:08,727 INFO L138 SettingsManager]: * Use SBE=true [2020-11-28 03:05:08,727 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-28 03:05:08,727 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-28 03:05:08,728 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-28 03:05:08,728 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-28 03:05:08,728 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-28 03:05:08,730 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-28 03:05:08,730 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-28 03:05:08,731 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-28 03:05:08,731 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-28 03:05:08,731 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-28 03:05:08,731 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-28 03:05:08,732 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-28 03:05:08,732 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-28 03:05:08,732 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-11-28 03:05:08,733 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-28 03:05:08,733 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-11-28 03:05:08,733 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-28 03:05:08,734 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-28 03:05:08,734 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-11-28 03:05:08,734 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-11-28 03:05:08,735 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-11-28 03:05:08,735 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-11-28 03:05:08,735 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-11-28 03:05:08,735 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-11-28 03:05:08,736 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud-vcloud-master/worker/run_dir_326bb89e-ae21-4028-9f80-3fc93c034e5a/bin/uautomizer/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_326bb89e-ae21-4028-9f80-3fc93c034e5a/bin/uautomizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> bfa9b5ae03b552654908bc6467afad9021ca189c [2020-11-28 03:05:09,040 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-28 03:05:09,077 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-28 03:05:09,083 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-28 03:05:09,085 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-28 03:05:09,086 INFO L275 PluginConnector]: CDTParser initialized [2020-11-28 03:05:09,087 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_326bb89e-ae21-4028-9f80-3fc93c034e5a/bin/uautomizer/../../sv-benchmarks/c/float-benchs/cast_float_union.c [2020-11-28 03:05:09,162 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_326bb89e-ae21-4028-9f80-3fc93c034e5a/bin/uautomizer/data/42f9dd39f/755916ac61804961922b7dd8fd535e85/FLAGadbe9776a [2020-11-28 03:05:09,681 INFO L306 CDTParser]: Found 1 translation units. [2020-11-28 03:05:09,683 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_326bb89e-ae21-4028-9f80-3fc93c034e5a/sv-benchmarks/c/float-benchs/cast_float_union.c [2020-11-28 03:05:09,688 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_326bb89e-ae21-4028-9f80-3fc93c034e5a/bin/uautomizer/data/42f9dd39f/755916ac61804961922b7dd8fd535e85/FLAGadbe9776a [2020-11-28 03:05:10,036 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_326bb89e-ae21-4028-9f80-3fc93c034e5a/bin/uautomizer/data/42f9dd39f/755916ac61804961922b7dd8fd535e85 [2020-11-28 03:05:10,039 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-28 03:05:10,040 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-28 03:05:10,053 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-28 03:05:10,054 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-28 03:05:10,057 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-28 03:05:10,059 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 03:05:10" (1/1) ... [2020-11-28 03:05:10,062 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@104c9b4e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:05:10, skipping insertion in model container [2020-11-28 03:05:10,063 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 03:05:10" (1/1) ... [2020-11-28 03:05:10,071 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-28 03:05:10,090 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-28 03:05:10,323 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-28 03:05:10,343 INFO L203 MainTranslator]: Completed pre-run [2020-11-28 03:05:10,386 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-28 03:05:10,413 INFO L208 MainTranslator]: Completed translation [2020-11-28 03:05:10,416 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:05:10 WrapperNode [2020-11-28 03:05:10,417 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-28 03:05:10,419 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-28 03:05:10,419 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-28 03:05:10,419 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-28 03:05:10,429 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:05:10" (1/1) ... [2020-11-28 03:05:10,448 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:05:10" (1/1) ... [2020-11-28 03:05:10,486 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-28 03:05:10,487 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-28 03:05:10,488 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-28 03:05:10,488 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-28 03:05:10,498 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:05:10" (1/1) ... [2020-11-28 03:05:10,499 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:05:10" (1/1) ... [2020-11-28 03:05:10,515 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:05:10" (1/1) ... [2020-11-28 03:05:10,518 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:05:10" (1/1) ... [2020-11-28 03:05:10,528 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:05:10" (1/1) ... [2020-11-28 03:05:10,539 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:05:10" (1/1) ... [2020-11-28 03:05:10,541 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:05:10" (1/1) ... [2020-11-28 03:05:10,544 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-28 03:05:10,553 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-28 03:05:10,553 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-28 03:05:10,553 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-28 03:05:10,555 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:05:10" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_326bb89e-ae21-4028-9f80-3fc93c034e5a/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 [2020-11-28 03:05:10,643 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-11-28 03:05:10,643 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-28 03:05:10,643 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2020-11-28 03:05:10,643 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-11-28 03:05:10,644 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2020-11-28 03:05:10,644 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-28 03:05:10,644 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-28 03:05:10,644 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-11-28 03:05:10,644 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-11-28 03:05:11,026 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-28 03:05:11,026 INFO L298 CfgBuilder]: Removed 6 assume(true) statements. [2020-11-28 03:05:11,027 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 03:05:11 BoogieIcfgContainer [2020-11-28 03:05:11,028 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-28 03:05:11,029 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-11-28 03:05:11,029 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-11-28 03:05:11,034 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-11-28 03:05:11,034 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.11 03:05:10" (1/3) ... [2020-11-28 03:05:11,035 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@24361075 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 03:05:11, skipping insertion in model container [2020-11-28 03:05:11,035 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:05:10" (2/3) ... [2020-11-28 03:05:11,036 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@24361075 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 03:05:11, skipping insertion in model container [2020-11-28 03:05:11,036 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 03:05:11" (3/3) ... [2020-11-28 03:05:11,037 INFO L111 eAbstractionObserver]: Analyzing ICFG cast_float_union.c [2020-11-28 03:05:11,048 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-11-28 03:05:11,053 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 0 error locations. [2020-11-28 03:05:11,065 INFO L253 AbstractCegarLoop]: Starting to check reachability of 0 error locations. [2020-11-28 03:05:11,089 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-11-28 03:05:11,089 INFO L378 AbstractCegarLoop]: Hoare is true [2020-11-28 03:05:11,090 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-11-28 03:05:11,090 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-28 03:05:11,090 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-28 03:05:11,090 INFO L382 AbstractCegarLoop]: Difference is false [2020-11-28 03:05:11,090 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-28 03:05:11,091 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-11-28 03:05:11,103 INFO L276 IsEmpty]: Start isEmpty. Operand 10 states. [2020-11-28 03:05:11,108 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-11-28 03:05:11,111 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 10 states. [2020-11-28 03:05:11,162 INFO L274 CegarLoopResult]: For program point L33(line 33) no Hoare annotation was computed. [2020-11-28 03:05:11,162 INFO L274 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-11-28 03:05:11,162 INFO L274 CegarLoopResult]: For program point L-1(line -1) no Hoare annotation was computed. [2020-11-28 03:05:11,162 INFO L274 CegarLoopResult]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2020-11-28 03:05:11,162 INFO L274 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-11-28 03:05:11,163 INFO L277 CegarLoopResult]: At program point L59(lines 52 60) the Hoare annotation is: true [2020-11-28 03:05:11,163 INFO L277 CegarLoopResult]: At program point L49(lines 26 50) the Hoare annotation is: true [2020-11-28 03:05:11,163 INFO L274 CegarLoopResult]: For program point L42(lines 42 48) no Hoare annotation was computed. [2020-11-28 03:05:11,163 INFO L274 CegarLoopResult]: For program point L42-2(lines 38 48) no Hoare annotation was computed. [2020-11-28 03:05:11,163 INFO L274 CegarLoopResult]: For program point L38(lines 38 48) no Hoare annotation was computed. [2020-11-28 03:05:11,171 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.11 03:05:11 BoogieIcfgContainer [2020-11-28 03:05:11,171 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-11-28 03:05:11,172 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-11-28 03:05:11,172 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-11-28 03:05:11,173 INFO L275 PluginConnector]: Witness Printer initialized [2020-11-28 03:05:11,173 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 03:05:11" (3/4) ... [2020-11-28 03:05:11,176 INFO L137 WitnessPrinter]: Generating witness for correct program [2020-11-28 03:05:11,188 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 12 nodes and edges [2020-11-28 03:05:11,188 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2020-11-28 03:05:11,189 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-11-28 03:05:11,189 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-11-28 03:05:11,248 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_326bb89e-ae21-4028-9f80-3fc93c034e5a/bin/uautomizer/witness.graphml [2020-11-28 03:05:11,256 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-11-28 03:05:11,260 INFO L168 Benchmark]: Toolchain (without parser) took 1217.41 ms. Allocated memory is still 94.4 MB. Free memory was 63.5 MB in the beginning and 44.9 MB in the end (delta: 18.6 MB). Peak memory consumption was 16.0 MB. Max. memory is 16.1 GB. [2020-11-28 03:05:11,261 INFO L168 Benchmark]: CDTParser took 0.29 ms. Allocated memory is still 94.4 MB. Free memory was 53.0 MB in the beginning and 53.0 MB in the end (delta: 39.3 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-28 03:05:11,262 INFO L168 Benchmark]: CACSL2BoogieTranslator took 363.89 ms. Allocated memory is still 94.4 MB. Free memory was 63.4 MB in the beginning and 71.4 MB in the end (delta: -8.1 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2020-11-28 03:05:11,265 INFO L168 Benchmark]: Boogie Procedure Inliner took 67.45 ms. Allocated memory is still 94.4 MB. Free memory was 71.4 MB in the beginning and 70.2 MB in the end (delta: 1.3 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-28 03:05:11,266 INFO L168 Benchmark]: Boogie Preprocessor took 64.58 ms. Allocated memory is still 94.4 MB. Free memory was 70.2 MB in the beginning and 68.9 MB in the end (delta: 1.3 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-28 03:05:11,266 INFO L168 Benchmark]: RCFGBuilder took 474.96 ms. Allocated memory is still 94.4 MB. Free memory was 68.9 MB in the beginning and 55.1 MB in the end (delta: 13.8 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. [2020-11-28 03:05:11,267 INFO L168 Benchmark]: TraceAbstraction took 142.54 ms. Allocated memory is still 94.4 MB. Free memory was 54.7 MB in the beginning and 47.5 MB in the end (delta: 7.1 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2020-11-28 03:05:11,268 INFO L168 Benchmark]: Witness Printer took 84.50 ms. Allocated memory is still 94.4 MB. Free memory was 47.5 MB in the beginning and 44.9 MB in the end (delta: 2.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-28 03:05:11,273 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.29 ms. Allocated memory is still 94.4 MB. Free memory was 53.0 MB in the beginning and 53.0 MB in the end (delta: 39.3 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 363.89 ms. Allocated memory is still 94.4 MB. Free memory was 63.4 MB in the beginning and 71.4 MB in the end (delta: -8.1 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 67.45 ms. Allocated memory is still 94.4 MB. Free memory was 71.4 MB in the beginning and 70.2 MB in the end (delta: 1.3 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 64.58 ms. Allocated memory is still 94.4 MB. Free memory was 70.2 MB in the beginning and 68.9 MB in the end (delta: 1.3 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 474.96 ms. Allocated memory is still 94.4 MB. Free memory was 68.9 MB in the beginning and 55.1 MB in the end (delta: 13.8 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. * TraceAbstraction took 142.54 ms. Allocated memory is still 94.4 MB. Free memory was 54.7 MB in the beginning and 47.5 MB in the end (delta: 7.1 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Witness Printer took 84.50 ms. Allocated memory is still 94.4 MB. Free memory was 47.5 MB in the beginning and 44.9 MB in the end (delta: 2.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - AllSpecificationsHoldResult: All specifications hold We were not able to verify any specifiation because the program does not contain any specification. - InvariantResult [Line: 52]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 26]: Loop Invariant Derived loop invariant: 1 - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 10 locations, 0 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 0.0s, OverallIterations: 0, TraceHistogramMax: 0, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 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: 0.0s HoareAnnotationTime, 2 LocationsWithAnnotation, 2 PreInvPairs, 2 NumberOfFragments, 2 HoareAnnotationTreeSize, 2 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 2 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...