./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/working_dir_1e245ee1-67bf-4feb-8ba6-c2bbcfca85df/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_1e245ee1-67bf-4feb-8ba6-c2bbcfca85df/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_1e245ee1-67bf-4feb-8ba6-c2bbcfca85df/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_1e245ee1-67bf-4feb-8ba6-c2bbcfca85df/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/float-benchs/cast_union_loose.c -s /tmp/vcloud-vcloud-master/worker/working_dir_1e245ee1-67bf-4feb-8ba6-c2bbcfca85df/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_1e245ee1-67bf-4feb-8ba6-c2bbcfca85df/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/working_dir_1e245ee1-67bf-4feb-8ba6-c2bbcfca85df/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_1e245ee1-67bf-4feb-8ba6-c2bbcfca85df/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_1e245ee1-67bf-4feb-8ba6-c2bbcfca85df/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_1e245ee1-67bf-4feb-8ba6-c2bbcfca85df/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/float-benchs/cast_union_loose.c -s /tmp/vcloud-vcloud-master/worker/working_dir_1e245ee1-67bf-4feb-8ba6-c2bbcfca85df/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_1e245ee1-67bf-4feb-8ba6-c2bbcfca85df/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 [2019-10-22 09:00:18,308 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-22 09:00:18,309 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-22 09:00:18,317 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-22 09:00:18,318 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-22 09:00:18,318 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-22 09:00:18,319 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-22 09:00:18,320 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-22 09:00:18,322 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-22 09:00:18,322 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-22 09:00:18,323 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-22 09:00:18,324 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-22 09:00:18,324 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-22 09:00:18,324 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-22 09:00:18,325 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-22 09:00:18,326 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-22 09:00:18,327 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-22 09:00:18,327 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-22 09:00:18,329 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-22 09:00:18,330 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-22 09:00:18,331 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-22 09:00:18,332 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-22 09:00:18,333 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-22 09:00:18,334 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-22 09:00:18,336 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-22 09:00:18,336 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-22 09:00:18,337 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-22 09:00:18,337 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-22 09:00:18,338 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-22 09:00:18,339 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-22 09:00:18,339 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-22 09:00:18,340 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-22 09:00:18,340 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-22 09:00:18,341 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-22 09:00:18,342 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-22 09:00:18,342 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-22 09:00:18,343 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-22 09:00:18,343 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-22 09:00:18,343 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-22 09:00:18,344 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-22 09:00:18,345 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-22 09:00:18,345 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_1e245ee1-67bf-4feb-8ba6-c2bbcfca85df/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf [2019-10-22 09:00:18,357 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-22 09:00:18,357 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-22 09:00:18,358 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-22 09:00:18,358 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-22 09:00:18,358 INFO L138 SettingsManager]: * Use SBE=true [2019-10-22 09:00:18,359 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-22 09:00:18,359 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-22 09:00:18,359 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-22 09:00:18,359 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-22 09:00:18,359 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-22 09:00:18,359 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-22 09:00:18,359 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-22 09:00:18,360 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-22 09:00:18,360 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-22 09:00:18,360 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-22 09:00:18,360 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-22 09:00:18,360 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-22 09:00:18,360 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-22 09:00:18,360 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-22 09:00:18,361 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-22 09:00:18,361 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-22 09:00:18,361 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-22 09:00:18,361 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-22 09:00:18,361 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-22 09:00:18,361 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-22 09:00:18,362 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-10-22 09:00:18,362 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-22 09:00:18,362 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-22 09:00:18,362 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/working_dir_1e245ee1-67bf-4feb-8ba6-c2bbcfca85df/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 [2019-10-22 09:00:18,393 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-22 09:00:18,408 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-22 09:00:18,411 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-22 09:00:18,412 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-22 09:00:18,412 INFO L275 PluginConnector]: CDTParser initialized [2019-10-22 09:00:18,415 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_1e245ee1-67bf-4feb-8ba6-c2bbcfca85df/bin/uautomizer/../../sv-benchmarks/c/float-benchs/cast_union_loose.c [2019-10-22 09:00:18,460 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_1e245ee1-67bf-4feb-8ba6-c2bbcfca85df/bin/uautomizer/data/004981838/22b0fbadb88048688cd04a77ab627fab/FLAG355b6ac4c [2019-10-22 09:00:18,815 INFO L306 CDTParser]: Found 1 translation units. [2019-10-22 09:00:18,816 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_1e245ee1-67bf-4feb-8ba6-c2bbcfca85df/sv-benchmarks/c/float-benchs/cast_union_loose.c [2019-10-22 09:00:18,820 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_1e245ee1-67bf-4feb-8ba6-c2bbcfca85df/bin/uautomizer/data/004981838/22b0fbadb88048688cd04a77ab627fab/FLAG355b6ac4c [2019-10-22 09:00:19,235 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_1e245ee1-67bf-4feb-8ba6-c2bbcfca85df/bin/uautomizer/data/004981838/22b0fbadb88048688cd04a77ab627fab [2019-10-22 09:00:19,238 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-22 09:00:19,239 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-10-22 09:00:19,240 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-22 09:00:19,240 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-22 09:00:19,243 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-22 09:00:19,244 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.10 09:00:19" (1/1) ... [2019-10-22 09:00:19,246 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3658c5ba and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 09:00:19, skipping insertion in model container [2019-10-22 09:00:19,246 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.10 09:00:19" (1/1) ... [2019-10-22 09:00:19,252 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-22 09:00:19,265 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-22 09:00:19,450 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-22 09:00:19,454 INFO L188 MainTranslator]: Completed pre-run [2019-10-22 09:00:19,478 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-22 09:00:19,496 INFO L192 MainTranslator]: Completed translation [2019-10-22 09:00:19,496 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 09:00:19 WrapperNode [2019-10-22 09:00:19,496 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-22 09:00:19,497 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-10-22 09:00:19,497 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-10-22 09:00:19,498 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-10-22 09:00:19,506 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 09:00:19" (1/1) ... [2019-10-22 09:00:19,514 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 09:00:19" (1/1) ... [2019-10-22 09:00:19,535 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-10-22 09:00:19,536 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-22 09:00:19,536 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-22 09:00:19,536 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-22 09:00:19,545 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 09:00:19" (1/1) ... [2019-10-22 09:00:19,545 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 09:00:19" (1/1) ... [2019-10-22 09:00:19,547 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 09:00:19" (1/1) ... [2019-10-22 09:00:19,548 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 09:00:19" (1/1) ... [2019-10-22 09:00:19,556 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 09:00:19" (1/1) ... [2019-10-22 09:00:19,559 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 09:00:19" (1/1) ... [2019-10-22 09:00:19,560 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 09:00:19" (1/1) ... [2019-10-22 09:00:19,567 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-22 09:00:19,568 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-22 09:00:19,568 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-22 09:00:19,568 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-22 09:00:19,569 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 09:00:19" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_1e245ee1-67bf-4feb-8ba6-c2bbcfca85df/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 [2019-10-22 09:00:19,627 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-10-22 09:00:19,627 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2019-10-22 09:00:19,628 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-10-22 09:00:19,628 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-22 09:00:19,629 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-22 09:00:19,629 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-10-22 09:00:19,629 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-10-22 09:00:19,840 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-22 09:00:19,840 INFO L284 CfgBuilder]: Removed 8 assume(true) statements. [2019-10-22 09:00:19,841 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 09:00:19 BoogieIcfgContainer [2019-10-22 09:00:19,841 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-22 09:00:19,842 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-22 09:00:19,842 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-22 09:00:19,857 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-22 09:00:19,857 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.10 09:00:19" (1/3) ... [2019-10-22 09:00:19,858 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7ae28b60 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.10 09:00:19, skipping insertion in model container [2019-10-22 09:00:19,859 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 09:00:19" (2/3) ... [2019-10-22 09:00:19,859 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7ae28b60 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.10 09:00:19, skipping insertion in model container [2019-10-22 09:00:19,859 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 09:00:19" (3/3) ... [2019-10-22 09:00:19,860 INFO L109 eAbstractionObserver]: Analyzing ICFG cast_union_loose.c [2019-10-22 09:00:19,881 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-22 09:00:19,887 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-10-22 09:00:19,902 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-10-22 09:00:19,952 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-22 09:00:19,952 INFO L374 AbstractCegarLoop]: Hoare is true [2019-10-22 09:00:19,952 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-22 09:00:19,952 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-22 09:00:19,953 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-22 09:00:19,953 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-22 09:00:19,953 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-22 09:00:19,953 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-22 09:00:19,968 INFO L276 IsEmpty]: Start isEmpty. Operand 10 states. [2019-10-22 09:00:19,973 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2019-10-22 09:00:19,973 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 09:00:19,974 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2019-10-22 09:00:19,976 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-22 09:00:19,982 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 09:00:19,983 INFO L82 PathProgramCache]: Analyzing trace with hash 28692803, now seen corresponding path program 1 times [2019-10-22 09:00:19,991 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 09:00:19,991 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [557309324] [2019-10-22 09:00:19,991 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 09:00:19,991 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 09:00:19,992 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 09:00:20,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-10-22 09:00:20,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-10-22 09:00:20,153 INFO L168 tionRefinementEngine]: Strategy CAMEL found a feasible trace [2019-10-22 09:00:20,154 INFO L445 BasicCegarLoop]: Counterexample might be feasible [2019-10-22 09:00:20,173 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.10 09:00:20 BoogieIcfgContainer [2019-10-22 09:00:20,173 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-10-22 09:00:20,173 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-10-22 09:00:20,173 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-10-22 09:00:20,174 INFO L275 PluginConnector]: Witness Printer initialized [2019-10-22 09:00:20,174 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 09:00:19" (3/4) ... [2019-10-22 09:00:20,177 INFO L140 WitnessPrinter]: No result that supports witness generation found [2019-10-22 09:00:20,178 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-10-22 09:00:20,180 INFO L168 Benchmark]: Toolchain (without parser) took 940.17 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 140.5 MB). Free memory was 944.5 MB in the beginning and 1.1 GB in the end (delta: -151.0 MB). There was no memory consumed. Max. memory is 11.5 GB. [2019-10-22 09:00:20,180 INFO L168 Benchmark]: CDTParser took 0.23 ms. Allocated memory is still 1.0 GB. Free memory is still 962.0 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-10-22 09:00:20,181 INFO L168 Benchmark]: CACSL2BoogieTranslator took 257.27 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 140.5 MB). Free memory was 944.5 MB in the beginning and 1.1 GB in the end (delta: -189.4 MB). Peak memory consumption was 22.9 MB. Max. memory is 11.5 GB. [2019-10-22 09:00:20,182 INFO L168 Benchmark]: Boogie Procedure Inliner took 38.50 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-10-22 09:00:20,183 INFO L168 Benchmark]: Boogie Preprocessor took 31.37 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. [2019-10-22 09:00:20,183 INFO L168 Benchmark]: RCFGBuilder took 273.69 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 17.0 MB). Peak memory consumption was 17.0 MB. Max. memory is 11.5 GB. [2019-10-22 09:00:20,184 INFO L168 Benchmark]: TraceAbstraction took 330.82 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 16.1 MB). Peak memory consumption was 16.1 MB. Max. memory is 11.5 GB. [2019-10-22 09:00:20,184 INFO L168 Benchmark]: Witness Printer took 4.44 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-10-22 09:00:20,189 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23 ms. Allocated memory is still 1.0 GB. Free memory is still 962.0 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 257.27 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 140.5 MB). Free memory was 944.5 MB in the beginning and 1.1 GB in the end (delta: -189.4 MB). Peak memory consumption was 22.9 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 38.50 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 31.37 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. * RCFGBuilder took 273.69 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 17.0 MB). Peak memory consumption was 17.0 MB. Max. memory is 11.5 GB. * TraceAbstraction took 330.82 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 16.1 MB). Peak memory consumption was 16.1 MB. Max. memory is 11.5 GB. * Witness Printer took 4.44 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 8]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: overapproximation of someBinaryDOUBLEComparisonOperation at line 34, overapproximation of someBinaryArithmeticDOUBLEoperation at line 22, overapproximation of bitwiseXor at line 21. Possible FailurePath: [L27] int a; [L28] double r; [L30] a = __VERIFIER_nondet_int() [L17] union u x, y; [L18] x.i[0] = 0x43300000 [L19] EXPR x.i[0] [L19] y.i[0] = x.i[0] [L20] x.i[1] = 0x80000000 [L21] EXPR x.i[1] [L21] y.i[1] = i ^ x.i[1] [L22] EXPR y.d [L22] EXPR x.d [L22] return y.d - x.d; [L22] return y.d - x.d; [L22] return y.d - x.d; [L33] r = cast(a) [L8] COND TRUE !(cond) [L8] __VERIFIER_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 10 locations, 1 error locations. Result: UNSAFE, OverallTime: 0.2s, 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 [2019-10-22 09:00:22,095 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-22 09:00:22,096 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-22 09:00:22,105 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-22 09:00:22,105 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-22 09:00:22,106 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-22 09:00:22,107 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-22 09:00:22,108 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-22 09:00:22,110 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-22 09:00:22,110 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-22 09:00:22,111 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-22 09:00:22,112 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-22 09:00:22,112 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-22 09:00:22,113 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-22 09:00:22,114 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-22 09:00:22,114 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-22 09:00:22,115 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-22 09:00:22,116 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-22 09:00:22,117 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-22 09:00:22,118 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-22 09:00:22,120 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-22 09:00:22,120 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-22 09:00:22,121 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-22 09:00:22,122 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-22 09:00:22,124 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-22 09:00:22,124 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-22 09:00:22,124 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-22 09:00:22,125 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-22 09:00:22,126 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-22 09:00:22,127 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-22 09:00:22,127 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-22 09:00:22,127 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-22 09:00:22,128 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-22 09:00:22,128 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-22 09:00:22,130 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-22 09:00:22,130 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-22 09:00:22,130 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-22 09:00:22,130 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-22 09:00:22,131 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-22 09:00:22,131 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-22 09:00:22,132 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-22 09:00:22,132 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_1e245ee1-67bf-4feb-8ba6-c2bbcfca85df/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2019-10-22 09:00:22,143 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-22 09:00:22,143 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-22 09:00:22,144 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-22 09:00:22,145 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-22 09:00:22,145 INFO L138 SettingsManager]: * Use SBE=true [2019-10-22 09:00:22,145 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-22 09:00:22,145 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-22 09:00:22,145 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-22 09:00:22,145 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-22 09:00:22,146 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-22 09:00:22,146 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-22 09:00:22,146 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-22 09:00:22,146 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2019-10-22 09:00:22,146 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2019-10-22 09:00:22,146 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-22 09:00:22,146 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-22 09:00:22,147 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-22 09:00:22,147 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-22 09:00:22,147 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-22 09:00:22,147 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-22 09:00:22,147 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-22 09:00:22,147 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-22 09:00:22,147 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-22 09:00:22,149 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-22 09:00:22,149 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-22 09:00:22,150 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-22 09:00:22,150 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2019-10-22 09:00:22,150 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2019-10-22 09:00:22,150 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-22 09:00:22,150 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-10-22 09:00:22,150 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/working_dir_1e245ee1-67bf-4feb-8ba6-c2bbcfca85df/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 [2019-10-22 09:00:22,180 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-22 09:00:22,193 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-22 09:00:22,196 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-22 09:00:22,200 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-22 09:00:22,201 INFO L275 PluginConnector]: CDTParser initialized [2019-10-22 09:00:22,201 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_1e245ee1-67bf-4feb-8ba6-c2bbcfca85df/bin/uautomizer/../../sv-benchmarks/c/float-benchs/cast_union_loose.c [2019-10-22 09:00:22,246 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_1e245ee1-67bf-4feb-8ba6-c2bbcfca85df/bin/uautomizer/data/a6c2a6c13/fb787ddffc0245818ac3f8b5ac7b0520/FLAG3ff1eabfb [2019-10-22 09:00:22,650 INFO L306 CDTParser]: Found 1 translation units. [2019-10-22 09:00:22,651 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_1e245ee1-67bf-4feb-8ba6-c2bbcfca85df/sv-benchmarks/c/float-benchs/cast_union_loose.c [2019-10-22 09:00:22,656 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_1e245ee1-67bf-4feb-8ba6-c2bbcfca85df/bin/uautomizer/data/a6c2a6c13/fb787ddffc0245818ac3f8b5ac7b0520/FLAG3ff1eabfb [2019-10-22 09:00:23,044 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_1e245ee1-67bf-4feb-8ba6-c2bbcfca85df/bin/uautomizer/data/a6c2a6c13/fb787ddffc0245818ac3f8b5ac7b0520 [2019-10-22 09:00:23,047 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-22 09:00:23,048 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-10-22 09:00:23,049 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-22 09:00:23,050 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-22 09:00:23,052 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-22 09:00:23,054 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.10 09:00:23" (1/1) ... [2019-10-22 09:00:23,056 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@62f1c206 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 09:00:23, skipping insertion in model container [2019-10-22 09:00:23,056 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.10 09:00:23" (1/1) ... [2019-10-22 09:00:23,062 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-22 09:00:23,078 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-22 09:00:23,226 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-22 09:00:23,231 INFO L188 MainTranslator]: Completed pre-run [2019-10-22 09:00:23,259 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-22 09:00:23,288 INFO L192 MainTranslator]: Completed translation [2019-10-22 09:00:23,288 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 09:00:23 WrapperNode [2019-10-22 09:00:23,288 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-22 09:00:23,289 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-10-22 09:00:23,290 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-10-22 09:00:23,291 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-10-22 09:00:23,388 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 09:00:23" (1/1) ... [2019-10-22 09:00:23,398 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 09:00:23" (1/1) ... [2019-10-22 09:00:23,419 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-10-22 09:00:23,420 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-22 09:00:23,421 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-22 09:00:23,421 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-22 09:00:23,427 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 09:00:23" (1/1) ... [2019-10-22 09:00:23,427 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 09:00:23" (1/1) ... [2019-10-22 09:00:23,429 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 09:00:23" (1/1) ... [2019-10-22 09:00:23,429 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 09:00:23" (1/1) ... [2019-10-22 09:00:23,438 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 09:00:23" (1/1) ... [2019-10-22 09:00:23,440 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 09:00:23" (1/1) ... [2019-10-22 09:00:23,442 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 09:00:23" (1/1) ... [2019-10-22 09:00:23,444 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-22 09:00:23,445 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-22 09:00:23,445 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-22 09:00:23,445 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-22 09:00:23,446 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 09:00:23" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_1e245ee1-67bf-4feb-8ba6-c2bbcfca85df/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 [2019-10-22 09:00:23,489 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE8 [2019-10-22 09:00:23,489 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-10-22 09:00:23,489 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2019-10-22 09:00:23,489 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-22 09:00:23,489 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-22 09:00:23,490 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-10-22 09:00:23,490 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2019-10-22 09:00:23,705 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-22 09:00:23,705 INFO L284 CfgBuilder]: Removed 8 assume(true) statements. [2019-10-22 09:00:23,706 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 09:00:23 BoogieIcfgContainer [2019-10-22 09:00:23,706 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-22 09:00:23,708 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-22 09:00:23,708 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-22 09:00:23,711 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-22 09:00:23,711 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.10 09:00:23" (1/3) ... [2019-10-22 09:00:23,712 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7cd1078c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.10 09:00:23, skipping insertion in model container [2019-10-22 09:00:23,712 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 09:00:23" (2/3) ... [2019-10-22 09:00:23,712 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7cd1078c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.10 09:00:23, skipping insertion in model container [2019-10-22 09:00:23,712 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 09:00:23" (3/3) ... [2019-10-22 09:00:23,714 INFO L109 eAbstractionObserver]: Analyzing ICFG cast_union_loose.c [2019-10-22 09:00:23,723 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-22 09:00:23,730 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-10-22 09:00:23,740 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-10-22 09:00:23,760 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-22 09:00:23,760 INFO L374 AbstractCegarLoop]: Hoare is true [2019-10-22 09:00:23,761 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-22 09:00:23,761 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-22 09:00:23,761 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-22 09:00:23,761 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-22 09:00:23,761 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-22 09:00:23,761 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-22 09:00:23,773 INFO L276 IsEmpty]: Start isEmpty. Operand 10 states. [2019-10-22 09:00:23,778 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2019-10-22 09:00:23,778 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 09:00:23,779 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2019-10-22 09:00:23,781 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-22 09:00:23,786 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 09:00:23,786 INFO L82 PathProgramCache]: Analyzing trace with hash 28692803, now seen corresponding path program 1 times [2019-10-22 09:00:23,796 INFO L157 tionRefinementEngine]: Executing refinement strategy WOLF [2019-10-22 09:00:23,796 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1448698462] [2019-10-22 09:00:23,797 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_1e245ee1-67bf-4feb-8ba6-c2bbcfca85df/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 [2019-10-22 09:00:23,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-10-22 09:00:24,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-10-22 09:00:24,154 INFO L168 tionRefinementEngine]: Strategy WOLF found a feasible trace [2019-10-22 09:00:24,155 INFO L445 BasicCegarLoop]: Counterexample might be feasible [2019-10-22 09:00:24,355 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 mathsat -unsat_core_generation=3 [2019-10-22 09:00:24,377 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.10 09:00:24 BoogieIcfgContainer [2019-10-22 09:00:24,377 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-10-22 09:00:24,377 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-10-22 09:00:24,377 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-10-22 09:00:24,377 INFO L275 PluginConnector]: Witness Printer initialized [2019-10-22 09:00:24,378 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 09:00:23" (3/4) ... [2019-10-22 09:00:24,380 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2019-10-22 09:00:24,411 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_1e245ee1-67bf-4feb-8ba6-c2bbcfca85df/bin/uautomizer/witness.graphml [2019-10-22 09:00:24,411 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-10-22 09:00:24,413 INFO L168 Benchmark]: Toolchain (without parser) took 1364.44 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 174.6 MB). Free memory was 951.0 MB in the beginning and 1.1 GB in the end (delta: -172.6 MB). Peak memory consumption was 2.0 MB. Max. memory is 11.5 GB. [2019-10-22 09:00:24,413 INFO L168 Benchmark]: CDTParser took 0.16 ms. Allocated memory is still 1.0 GB. Free memory is still 977.8 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-10-22 09:00:24,414 INFO L168 Benchmark]: CACSL2BoogieTranslator took 239.42 ms. Allocated memory is still 1.0 GB. Free memory was 951.0 MB in the beginning and 940.2 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2019-10-22 09:00:24,414 INFO L168 Benchmark]: Boogie Procedure Inliner took 130.69 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 174.6 MB). Free memory was 940.2 MB in the beginning and 1.2 GB in the end (delta: -223.3 MB). Peak memory consumption was 18.1 MB. Max. memory is 11.5 GB. [2019-10-22 09:00:24,415 INFO L168 Benchmark]: Boogie Preprocessor took 24.42 ms. Allocated memory is still 1.2 GB. Free memory is still 1.2 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-10-22 09:00:24,415 INFO L168 Benchmark]: RCFGBuilder took 261.62 ms. Allocated memory is still 1.2 GB. Free memory was 1.2 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. [2019-10-22 09:00:24,416 INFO L168 Benchmark]: TraceAbstraction took 669.31 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 19.8 MB). Peak memory consumption was 19.8 MB. Max. memory is 11.5 GB. [2019-10-22 09:00:24,416 INFO L168 Benchmark]: Witness Printer took 34.09 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-10-22 09:00:24,419 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16 ms. Allocated memory is still 1.0 GB. Free memory is still 977.8 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 239.42 ms. Allocated memory is still 1.0 GB. Free memory was 951.0 MB in the beginning and 940.2 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 130.69 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 174.6 MB). Free memory was 940.2 MB in the beginning and 1.2 GB in the end (delta: -223.3 MB). Peak memory consumption was 18.1 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 24.42 ms. Allocated memory is still 1.2 GB. Free memory is still 1.2 GB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 261.62 ms. Allocated memory is still 1.2 GB. Free memory was 1.2 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 669.31 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 19.8 MB). Peak memory consumption was 19.8 MB. Max. memory is 11.5 GB. * Witness Printer took 34.09 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 8]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L27] int a; [L28] double r; [L30] a = __VERIFIER_nondet_int() [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...