./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/float-benchs/cast_union_tight.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 69874e26 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_8560cb5d-59f6-4287-a30c-b23820822aa0/bin/uautomizer/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_8560cb5d-59f6-4287-a30c-b23820822aa0/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_8560cb5d-59f6-4287-a30c-b23820822aa0/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_8560cb5d-59f6-4287-a30c-b23820822aa0/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/float-benchs/cast_union_tight.c -s /tmp/vcloud-vcloud-master/worker/run_dir_8560cb5d-59f6-4287-a30c-b23820822aa0/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_8560cb5d-59f6-4287-a30c-b23820822aa0/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 3d31f2d0d6b0c3e8ac2e406df583c8b091e17f75 .................................................................................................................................................................................................................................................... Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_8560cb5d-59f6-4287-a30c-b23820822aa0/bin/uautomizer/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_8560cb5d-59f6-4287-a30c-b23820822aa0/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_8560cb5d-59f6-4287-a30c-b23820822aa0/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_8560cb5d-59f6-4287-a30c-b23820822aa0/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/float-benchs/cast_union_tight.c -s /tmp/vcloud-vcloud-master/worker/run_dir_8560cb5d-59f6-4287-a30c-b23820822aa0/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_8560cb5d-59f6-4287-a30c-b23820822aa0/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 3d31f2d0d6b0c3e8ac2e406df583c8b091e17f75 ......................................................................................................................................................................................................................................................... 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 0.2.0-69874e2 [2020-12-01 15:39:20,781 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-12-01 15:39:20,785 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-12-01 15:39:20,898 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-12-01 15:39:20,900 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-12-01 15:39:20,920 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-12-01 15:39:20,923 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-12-01 15:39:20,928 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-12-01 15:39:20,932 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-12-01 15:39:20,939 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-12-01 15:39:20,941 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-12-01 15:39:20,943 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-12-01 15:39:20,944 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-12-01 15:39:20,949 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-12-01 15:39:20,951 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-12-01 15:39:20,953 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-12-01 15:39:20,954 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-12-01 15:39:20,959 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-12-01 15:39:20,963 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-12-01 15:39:20,973 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-12-01 15:39:20,976 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-12-01 15:39:20,978 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-12-01 15:39:20,981 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-12-01 15:39:20,982 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-12-01 15:39:20,993 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-12-01 15:39:20,994 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-12-01 15:39:20,994 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-12-01 15:39:20,996 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-12-01 15:39:20,998 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-12-01 15:39:20,999 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-12-01 15:39:21,000 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-12-01 15:39:21,001 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-12-01 15:39:21,004 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-12-01 15:39:21,005 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-12-01 15:39:21,007 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-12-01 15:39:21,007 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-12-01 15:39:21,008 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-12-01 15:39:21,009 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-12-01 15:39:21,009 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-12-01 15:39:21,011 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-12-01 15:39:21,012 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-12-01 15:39:21,018 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_8560cb5d-59f6-4287-a30c-b23820822aa0/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf [2020-12-01 15:39:21,065 INFO L113 SettingsManager]: Loading preferences was successful [2020-12-01 15:39:21,066 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-12-01 15:39:21,068 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-12-01 15:39:21,069 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-12-01 15:39:21,069 INFO L138 SettingsManager]: * Use SBE=true [2020-12-01 15:39:21,069 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-12-01 15:39:21,070 INFO L138 SettingsManager]: * sizeof long=4 [2020-12-01 15:39:21,070 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-12-01 15:39:21,070 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-12-01 15:39:21,071 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-12-01 15:39:21,072 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-12-01 15:39:21,072 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-12-01 15:39:21,073 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-12-01 15:39:21,073 INFO L138 SettingsManager]: * sizeof long double=12 [2020-12-01 15:39:21,073 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-12-01 15:39:21,074 INFO L138 SettingsManager]: * Use constant arrays=true [2020-12-01 15:39:21,074 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-12-01 15:39:21,074 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-12-01 15:39:21,074 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-12-01 15:39:21,075 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-12-01 15:39:21,075 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-12-01 15:39:21,075 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-12-01 15:39:21,076 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-12-01 15:39:21,076 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-12-01 15:39:21,076 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-12-01 15:39:21,077 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-12-01 15:39:21,077 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-12-01 15:39:21,077 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-12-01 15:39:21,078 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-12-01 15:39:21,078 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_8560cb5d-59f6-4287-a30c-b23820822aa0/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_8560cb5d-59f6-4287-a30c-b23820822aa0/bin/uautomizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 3d31f2d0d6b0c3e8ac2e406df583c8b091e17f75 [2020-12-01 15:39:21,418 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-12-01 15:39:21,467 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-12-01 15:39:21,469 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-12-01 15:39:21,470 INFO L271 PluginConnector]: Initializing CDTParser... [2020-12-01 15:39:21,472 INFO L275 PluginConnector]: CDTParser initialized [2020-12-01 15:39:21,473 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_8560cb5d-59f6-4287-a30c-b23820822aa0/bin/uautomizer/../../sv-benchmarks/c/float-benchs/cast_union_tight.c [2020-12-01 15:39:21,574 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_8560cb5d-59f6-4287-a30c-b23820822aa0/bin/uautomizer/data/562c91201/2fd2951ad8d14cfcaf643c13f8365de1/FLAG72a5dc470 [2020-12-01 15:39:22,278 INFO L306 CDTParser]: Found 1 translation units. [2020-12-01 15:39:22,280 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_8560cb5d-59f6-4287-a30c-b23820822aa0/sv-benchmarks/c/float-benchs/cast_union_tight.c [2020-12-01 15:39:22,293 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_8560cb5d-59f6-4287-a30c-b23820822aa0/bin/uautomizer/data/562c91201/2fd2951ad8d14cfcaf643c13f8365de1/FLAG72a5dc470 [2020-12-01 15:39:22,623 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_8560cb5d-59f6-4287-a30c-b23820822aa0/bin/uautomizer/data/562c91201/2fd2951ad8d14cfcaf643c13f8365de1 [2020-12-01 15:39:22,627 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-12-01 15:39:22,630 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-12-01 15:39:22,636 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-12-01 15:39:22,636 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-12-01 15:39:22,640 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-12-01 15:39:22,641 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.12 03:39:22" (1/1) ... [2020-12-01 15:39:22,645 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@560a43a5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:39:22, skipping insertion in model container [2020-12-01 15:39:22,645 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.12 03:39:22" (1/1) ... [2020-12-01 15:39:22,653 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-12-01 15:39:22,670 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-12-01 15:39:22,961 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-01 15:39:22,971 INFO L203 MainTranslator]: Completed pre-run [2020-12-01 15:39:22,995 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-01 15:39:23,014 INFO L208 MainTranslator]: Completed translation [2020-12-01 15:39:23,015 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:39:23 WrapperNode [2020-12-01 15:39:23,016 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-12-01 15:39:23,017 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-12-01 15:39:23,017 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-12-01 15:39:23,018 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-12-01 15:39:23,027 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:39:23" (1/1) ... [2020-12-01 15:39:23,037 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:39:23" (1/1) ... [2020-12-01 15:39:23,060 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-12-01 15:39:23,061 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-12-01 15:39:23,061 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-12-01 15:39:23,061 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-12-01 15:39:23,071 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:39:23" (1/1) ... [2020-12-01 15:39:23,071 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:39:23" (1/1) ... [2020-12-01 15:39:23,074 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:39:23" (1/1) ... [2020-12-01 15:39:23,074 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:39:23" (1/1) ... [2020-12-01 15:39:23,082 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:39:23" (1/1) ... [2020-12-01 15:39:23,084 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:39:23" (1/1) ... [2020-12-01 15:39:23,086 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:39:23" (1/1) ... [2020-12-01 15:39:23,095 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-12-01 15:39:23,096 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-12-01 15:39:23,096 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-12-01 15:39:23,096 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-12-01 15:39:23,097 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:39:23" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_8560cb5d-59f6-4287-a30c-b23820822aa0/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 [2020-12-01 15:39:23,195 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-12-01 15:39:23,195 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-12-01 15:39:23,196 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2020-12-01 15:39:23,197 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-12-01 15:39:23,197 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-12-01 15:39:23,198 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-12-01 15:39:23,198 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-12-01 15:39:23,199 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-12-01 15:39:23,542 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-12-01 15:39:23,542 INFO L298 CfgBuilder]: Removed 10 assume(true) statements. [2020-12-01 15:39:23,544 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.12 03:39:23 BoogieIcfgContainer [2020-12-01 15:39:23,545 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-12-01 15:39:23,547 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-12-01 15:39:23,547 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-12-01 15:39:23,551 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-12-01 15:39:23,551 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 01.12 03:39:22" (1/3) ... [2020-12-01 15:39:23,552 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5b899e49 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.12 03:39:23, skipping insertion in model container [2020-12-01 15:39:23,553 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:39:23" (2/3) ... [2020-12-01 15:39:23,553 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5b899e49 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.12 03:39:23, skipping insertion in model container [2020-12-01 15:39:23,554 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.12 03:39:23" (3/3) ... [2020-12-01 15:39:23,555 INFO L111 eAbstractionObserver]: Analyzing ICFG cast_union_tight.c [2020-12-01 15:39:23,569 INFO L180 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-12-01 15:39:23,573 INFO L192 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-12-01 15:39:23,587 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-12-01 15:39:23,617 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-12-01 15:39:23,617 INFO L378 AbstractCegarLoop]: Hoare is true [2020-12-01 15:39:23,617 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-12-01 15:39:23,618 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-12-01 15:39:23,618 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-12-01 15:39:23,618 INFO L382 AbstractCegarLoop]: Difference is false [2020-12-01 15:39:23,618 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-12-01 15:39:23,618 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-12-01 15:39:23,644 INFO L276 IsEmpty]: Start isEmpty. Operand 11 states. [2020-12-01 15:39:23,651 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2020-12-01 15:39:23,651 INFO L414 BasicCegarLoop]: Found error trace [2020-12-01 15:39:23,652 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2020-12-01 15:39:23,653 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-01 15:39:23,662 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 15:39:23,663 INFO L82 PathProgramCache]: Analyzing trace with hash 28692803, now seen corresponding path program 1 times [2020-12-01 15:39:23,674 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-01 15:39:23,675 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1777410692] [2020-12-01 15:39:23,675 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-01 15:39:23,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-01 15:39:23,892 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-01 15:39:23,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-01 15:39:23,937 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-01 15:39:23,966 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-12-01 15:39:23,967 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-12-01 15:39:23,968 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-12-01 15:39:23,995 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 01.12 03:39:23 BoogieIcfgContainer [2020-12-01 15:39:23,995 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-12-01 15:39:23,997 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-12-01 15:39:23,997 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-12-01 15:39:23,997 INFO L275 PluginConnector]: Witness Printer initialized [2020-12-01 15:39:23,998 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.12 03:39:23" (3/4) ... [2020-12-01 15:39:24,002 INFO L140 WitnessPrinter]: No result that supports witness generation found [2020-12-01 15:39:24,002 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-12-01 15:39:24,006 INFO L168 Benchmark]: Toolchain (without parser) took 1373.92 ms. Allocated memory was 83.9 MB in the beginning and 121.6 MB in the end (delta: 37.7 MB). Free memory was 53.6 MB in the beginning and 91.5 MB in the end (delta: -37.9 MB). Peak memory consumption was 495.4 kB. Max. memory is 16.1 GB. [2020-12-01 15:39:24,007 INFO L168 Benchmark]: CDTParser took 0.62 ms. Allocated memory is still 83.9 MB. Free memory was 44.2 MB in the beginning and 44.1 MB in the end (delta: 75.5 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-12-01 15:39:24,008 INFO L168 Benchmark]: CACSL2BoogieTranslator took 380.09 ms. Allocated memory is still 83.9 MB. Free memory was 53.4 MB in the beginning and 60.9 MB in the end (delta: -7.5 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2020-12-01 15:39:24,009 INFO L168 Benchmark]: Boogie Procedure Inliner took 42.90 ms. Allocated memory is still 83.9 MB. Free memory was 60.9 MB in the beginning and 59.2 MB in the end (delta: 1.7 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-12-01 15:39:24,010 INFO L168 Benchmark]: Boogie Preprocessor took 34.23 ms. Allocated memory is still 83.9 MB. Free memory was 59.2 MB in the beginning and 58.3 MB in the end (delta: 919.8 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-12-01 15:39:24,011 INFO L168 Benchmark]: RCFGBuilder took 449.00 ms. Allocated memory is still 83.9 MB. Free memory was 58.0 MB in the beginning and 45.1 MB in the end (delta: 12.9 MB). Peak memory consumption was 14.7 MB. Max. memory is 16.1 GB. [2020-12-01 15:39:24,012 INFO L168 Benchmark]: TraceAbstraction took 449.11 ms. Allocated memory was 83.9 MB in the beginning and 121.6 MB in the end (delta: 37.7 MB). Free memory was 44.8 MB in the beginning and 92.1 MB in the end (delta: -47.3 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-12-01 15:39:24,013 INFO L168 Benchmark]: Witness Printer took 6.00 ms. Allocated memory is still 121.6 MB. Free memory was 92.1 MB in the beginning and 91.5 MB in the end (delta: 593.3 kB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-12-01 15:39:24,018 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.62 ms. Allocated memory is still 83.9 MB. Free memory was 44.2 MB in the beginning and 44.1 MB in the end (delta: 75.5 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 380.09 ms. Allocated memory is still 83.9 MB. Free memory was 53.4 MB in the beginning and 60.9 MB in the end (delta: -7.5 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 42.90 ms. Allocated memory is still 83.9 MB. Free memory was 60.9 MB in the beginning and 59.2 MB in the end (delta: 1.7 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 34.23 ms. Allocated memory is still 83.9 MB. Free memory was 59.2 MB in the beginning and 58.3 MB in the end (delta: 919.8 kB). There was no memory consumed. Max. memory is 16.1 GB. * RCFGBuilder took 449.00 ms. Allocated memory is still 83.9 MB. Free memory was 58.0 MB in the beginning and 45.1 MB in the end (delta: 12.9 MB). Peak memory consumption was 14.7 MB. Max. memory is 16.1 GB. * TraceAbstraction took 449.11 ms. Allocated memory was 83.9 MB in the beginning and 121.6 MB in the end (delta: 37.7 MB). Free memory was 44.8 MB in the beginning and 92.1 MB in the end (delta: -47.3 MB). There was no memory consumed. Max. memory is 16.1 GB. * Witness Printer took 6.00 ms. Allocated memory is still 121.6 MB. Free memory was 92.1 MB in the beginning and 91.5 MB in the end (delta: 593.3 kB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 3]: 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 23, overapproximation of bitwiseXor at line 22. Possible FailurePath: [L28] int a; [L29] double r; [L31] a = __VERIFIER_nondet_int() [L18] union u x, y; [L19] x.i[0] = 0x43300000 [L20] EXPR x.i[0] [L20] y.i[0] = x.i[0] [L21] x.i[1] = 0x80000000 [L22] EXPR x.i[1] [L22] y.i[1] = i ^ x.i[1] [L23] EXPR y.d [L23] EXPR x.d [L23] return y.d - x.d; [L23] return y.d - x.d; [L23] return y.d - x.d; [L33] r = cast(a) [L9] COND TRUE !(cond) [L3] __assert_fail("0", "cast_union_tight.c", 3, "reach_error") - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 11 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 0.3s, OverallIterations: 1, TraceHistogramMax: 1, 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=11occurred 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, ACCELERATED_INTERPOLATION: 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 0.2.0-69874e2 [2020-12-01 15:39:27,012 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-12-01 15:39:27,015 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-12-01 15:39:27,083 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-12-01 15:39:27,084 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-12-01 15:39:27,091 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-12-01 15:39:27,095 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-12-01 15:39:27,101 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-12-01 15:39:27,105 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-12-01 15:39:27,109 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-12-01 15:39:27,111 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-12-01 15:39:27,113 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-12-01 15:39:27,113 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-12-01 15:39:27,115 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-12-01 15:39:27,117 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-12-01 15:39:27,119 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-12-01 15:39:27,120 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-12-01 15:39:27,121 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-12-01 15:39:27,124 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-12-01 15:39:27,127 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-12-01 15:39:27,130 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-12-01 15:39:27,135 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-12-01 15:39:27,137 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-12-01 15:39:27,144 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-12-01 15:39:27,148 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-12-01 15:39:27,149 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-12-01 15:39:27,149 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-12-01 15:39:27,151 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-12-01 15:39:27,152 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-12-01 15:39:27,153 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-12-01 15:39:27,154 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-12-01 15:39:27,155 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-12-01 15:39:27,156 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-12-01 15:39:27,158 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-12-01 15:39:27,159 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-12-01 15:39:27,160 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-12-01 15:39:27,161 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-12-01 15:39:27,162 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-12-01 15:39:27,162 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-12-01 15:39:27,164 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-12-01 15:39:27,165 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-12-01 15:39:27,166 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_8560cb5d-59f6-4287-a30c-b23820822aa0/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2020-12-01 15:39:27,198 INFO L113 SettingsManager]: Loading preferences was successful [2020-12-01 15:39:27,204 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-12-01 15:39:27,206 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-12-01 15:39:27,207 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-12-01 15:39:27,208 INFO L138 SettingsManager]: * Use SBE=true [2020-12-01 15:39:27,208 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-12-01 15:39:27,208 INFO L138 SettingsManager]: * sizeof long=4 [2020-12-01 15:39:27,209 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-12-01 15:39:27,209 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-12-01 15:39:27,209 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-12-01 15:39:27,211 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-12-01 15:39:27,211 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-12-01 15:39:27,211 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2020-12-01 15:39:27,212 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2020-12-01 15:39:27,212 INFO L138 SettingsManager]: * sizeof long double=12 [2020-12-01 15:39:27,212 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-12-01 15:39:27,213 INFO L138 SettingsManager]: * Use constant arrays=true [2020-12-01 15:39:27,213 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-12-01 15:39:27,213 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-12-01 15:39:27,214 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-12-01 15:39:27,214 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-12-01 15:39:27,214 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-12-01 15:39:27,214 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-12-01 15:39:27,215 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-12-01 15:39:27,215 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-12-01 15:39:27,215 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-12-01 15:39:27,216 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2020-12-01 15:39:27,216 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2020-12-01 15:39:27,216 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-12-01 15:39:27,217 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-12-01 15:39:27,217 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-12-01 15:39:27,217 INFO L138 SettingsManager]: * Logic for external solver=AUFBV 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_8560cb5d-59f6-4287-a30c-b23820822aa0/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_8560cb5d-59f6-4287-a30c-b23820822aa0/bin/uautomizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 3d31f2d0d6b0c3e8ac2e406df583c8b091e17f75 [2020-12-01 15:39:27,736 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-12-01 15:39:27,780 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-12-01 15:39:27,785 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-12-01 15:39:27,787 INFO L271 PluginConnector]: Initializing CDTParser... [2020-12-01 15:39:27,788 INFO L275 PluginConnector]: CDTParser initialized [2020-12-01 15:39:27,789 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_8560cb5d-59f6-4287-a30c-b23820822aa0/bin/uautomizer/../../sv-benchmarks/c/float-benchs/cast_union_tight.c [2020-12-01 15:39:27,870 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_8560cb5d-59f6-4287-a30c-b23820822aa0/bin/uautomizer/data/964ff22e1/ab854652ac2c47d3ba6f4a3e4e9f86f2/FLAG150ff436a [2020-12-01 15:39:28,584 INFO L306 CDTParser]: Found 1 translation units. [2020-12-01 15:39:28,585 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_8560cb5d-59f6-4287-a30c-b23820822aa0/sv-benchmarks/c/float-benchs/cast_union_tight.c [2020-12-01 15:39:28,595 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_8560cb5d-59f6-4287-a30c-b23820822aa0/bin/uautomizer/data/964ff22e1/ab854652ac2c47d3ba6f4a3e4e9f86f2/FLAG150ff436a [2020-12-01 15:39:28,992 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_8560cb5d-59f6-4287-a30c-b23820822aa0/bin/uautomizer/data/964ff22e1/ab854652ac2c47d3ba6f4a3e4e9f86f2 [2020-12-01 15:39:28,995 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-12-01 15:39:28,997 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-12-01 15:39:28,999 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-12-01 15:39:28,999 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-12-01 15:39:29,005 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-12-01 15:39:29,007 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.12 03:39:28" (1/1) ... [2020-12-01 15:39:29,010 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7438a696 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:39:29, skipping insertion in model container [2020-12-01 15:39:29,010 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.12 03:39:28" (1/1) ... [2020-12-01 15:39:29,021 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-12-01 15:39:29,040 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-12-01 15:39:29,246 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-01 15:39:29,261 INFO L203 MainTranslator]: Completed pre-run [2020-12-01 15:39:29,311 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-01 15:39:29,352 INFO L208 MainTranslator]: Completed translation [2020-12-01 15:39:29,352 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:39:29 WrapperNode [2020-12-01 15:39:29,353 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-12-01 15:39:29,355 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-12-01 15:39:29,355 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-12-01 15:39:29,358 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-12-01 15:39:29,367 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:39:29" (1/1) ... [2020-12-01 15:39:29,397 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:39:29" (1/1) ... [2020-12-01 15:39:29,434 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-12-01 15:39:29,435 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-12-01 15:39:29,435 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-12-01 15:39:29,436 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-12-01 15:39:29,444 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:39:29" (1/1) ... [2020-12-01 15:39:29,444 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:39:29" (1/1) ... [2020-12-01 15:39:29,448 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:39:29" (1/1) ... [2020-12-01 15:39:29,449 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:39:29" (1/1) ... [2020-12-01 15:39:29,457 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:39:29" (1/1) ... [2020-12-01 15:39:29,459 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:39:29" (1/1) ... [2020-12-01 15:39:29,462 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:39:29" (1/1) ... [2020-12-01 15:39:29,466 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-12-01 15:39:29,467 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-12-01 15:39:29,467 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-12-01 15:39:29,468 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-12-01 15:39:29,469 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:39:29" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_8560cb5d-59f6-4287-a30c-b23820822aa0/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 [2020-12-01 15:39:29,563 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE8 [2020-12-01 15:39:29,564 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2020-12-01 15:39:29,564 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-12-01 15:39:29,564 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2020-12-01 15:39:29,564 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-12-01 15:39:29,565 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-12-01 15:39:29,565 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-12-01 15:39:29,565 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2020-12-01 15:39:31,071 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-12-01 15:39:31,071 INFO L298 CfgBuilder]: Removed 10 assume(true) statements. [2020-12-01 15:39:31,073 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.12 03:39:31 BoogieIcfgContainer [2020-12-01 15:39:31,073 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-12-01 15:39:31,075 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-12-01 15:39:31,075 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-12-01 15:39:31,079 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-12-01 15:39:31,079 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 01.12 03:39:28" (1/3) ... [2020-12-01 15:39:31,080 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@17019f36 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.12 03:39:31, skipping insertion in model container [2020-12-01 15:39:31,081 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:39:29" (2/3) ... [2020-12-01 15:39:31,081 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@17019f36 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.12 03:39:31, skipping insertion in model container [2020-12-01 15:39:31,082 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.12 03:39:31" (3/3) ... [2020-12-01 15:39:31,083 INFO L111 eAbstractionObserver]: Analyzing ICFG cast_union_tight.c [2020-12-01 15:39:31,100 INFO L180 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-12-01 15:39:31,104 INFO L192 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-12-01 15:39:31,118 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-12-01 15:39:31,147 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-12-01 15:39:31,147 INFO L378 AbstractCegarLoop]: Hoare is true [2020-12-01 15:39:31,147 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-12-01 15:39:31,148 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-12-01 15:39:31,148 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-12-01 15:39:31,148 INFO L382 AbstractCegarLoop]: Difference is false [2020-12-01 15:39:31,148 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-12-01 15:39:31,148 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-12-01 15:39:31,163 INFO L276 IsEmpty]: Start isEmpty. Operand 11 states. [2020-12-01 15:39:31,168 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2020-12-01 15:39:31,169 INFO L414 BasicCegarLoop]: Found error trace [2020-12-01 15:39:31,169 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2020-12-01 15:39:31,170 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-01 15:39:31,177 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 15:39:31,177 INFO L82 PathProgramCache]: Analyzing trace with hash 28692803, now seen corresponding path program 1 times [2020-12-01 15:39:31,191 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-12-01 15:39:31,192 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [366604076] [2020-12-01 15:39:31,192 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_8560cb5d-59f6-4287-a30c-b23820822aa0/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 [2020-12-01 15:39:31,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-01 15:39:31,466 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-01 15:39:31,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-01 15:39:31,713 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-01 15:39:31,763 INFO L173 FreeRefinementEngine]: Strategy WOLF found a feasible trace [2020-12-01 15:39:31,765 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-12-01 15:39:31,966 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 mathsat -unsat_core_generation=3 [2020-12-01 15:39:32,004 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 01.12 03:39:32 BoogieIcfgContainer [2020-12-01 15:39:32,004 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-12-01 15:39:32,007 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-12-01 15:39:32,007 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-12-01 15:39:32,008 INFO L275 PluginConnector]: Witness Printer initialized [2020-12-01 15:39:32,009 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.12 03:39:31" (3/4) ... [2020-12-01 15:39:32,011 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2020-12-01 15:39:32,073 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_8560cb5d-59f6-4287-a30c-b23820822aa0/bin/uautomizer/witness.graphml [2020-12-01 15:39:32,074 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-12-01 15:39:32,076 INFO L168 Benchmark]: Toolchain (without parser) took 3077.78 ms. Allocated memory is still 73.4 MB. Free memory was 58.4 MB in the beginning and 36.1 MB in the end (delta: 22.3 MB). Peak memory consumption was 22.6 MB. Max. memory is 16.1 GB. [2020-12-01 15:39:32,077 INFO L168 Benchmark]: CDTParser took 0.27 ms. Allocated memory is still 73.4 MB. Free memory is still 55.9 MB. There was no memory consumed. Max. memory is 16.1 GB. [2020-12-01 15:39:32,078 INFO L168 Benchmark]: CACSL2BoogieTranslator took 354.27 ms. Allocated memory is still 73.4 MB. Free memory was 58.4 MB in the beginning and 47.9 MB in the end (delta: 10.4 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2020-12-01 15:39:32,079 INFO L168 Benchmark]: Boogie Procedure Inliner took 79.66 ms. Allocated memory is still 73.4 MB. Free memory was 47.9 MB in the beginning and 46.3 MB in the end (delta: 1.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-12-01 15:39:32,080 INFO L168 Benchmark]: Boogie Preprocessor took 31.12 ms. Allocated memory is still 73.4 MB. Free memory was 46.3 MB in the beginning and 44.9 MB in the end (delta: 1.4 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-12-01 15:39:32,082 INFO L168 Benchmark]: RCFGBuilder took 1605.96 ms. Allocated memory is still 73.4 MB. Free memory was 44.9 MB in the beginning and 54.9 MB in the end (delta: -10.0 MB). Peak memory consumption was 16.3 MB. Max. memory is 16.1 GB. [2020-12-01 15:39:32,083 INFO L168 Benchmark]: TraceAbstraction took 929.65 ms. Allocated memory is still 73.4 MB. Free memory was 54.6 MB in the beginning and 37.8 MB in the end (delta: 16.8 MB). Peak memory consumption was 16.8 MB. Max. memory is 16.1 GB. [2020-12-01 15:39:32,084 INFO L168 Benchmark]: Witness Printer took 66.72 ms. Allocated memory is still 73.4 MB. Free memory was 37.8 MB in the beginning and 36.1 MB in the end (delta: 1.7 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-12-01 15:39:32,089 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.27 ms. Allocated memory is still 73.4 MB. Free memory is still 55.9 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 354.27 ms. Allocated memory is still 73.4 MB. Free memory was 58.4 MB in the beginning and 47.9 MB in the end (delta: 10.4 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 79.66 ms. Allocated memory is still 73.4 MB. Free memory was 47.9 MB in the beginning and 46.3 MB in the end (delta: 1.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 31.12 ms. Allocated memory is still 73.4 MB. Free memory was 46.3 MB in the beginning and 44.9 MB in the end (delta: 1.4 MB). There was no memory consumed. Max. memory is 16.1 GB. * RCFGBuilder took 1605.96 ms. Allocated memory is still 73.4 MB. Free memory was 44.9 MB in the beginning and 54.9 MB in the end (delta: -10.0 MB). Peak memory consumption was 16.3 MB. Max. memory is 16.1 GB. * TraceAbstraction took 929.65 ms. Allocated memory is still 73.4 MB. Free memory was 54.6 MB in the beginning and 37.8 MB in the end (delta: 16.8 MB). Peak memory consumption was 16.8 MB. Max. memory is 16.1 GB. * Witness Printer took 66.72 ms. Allocated memory is still 73.4 MB. Free memory was 37.8 MB in the beginning and 36.1 MB in the end (delta: 1.7 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 3]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L28] int a; [L29] double r; [L31] a = __VERIFIER_nondet_int() [L18] union u x, y; [L19] x.i[0] = 0x43300000 [L20] EXPR x.i[0] [L20] y.i[0] = x.i[0] [L21] x.i[1] = 0x80000000 [L22] EXPR x.i[1] [L22] y.i[1] = i ^ x.i[1] [L23] EXPR y.d [L23] EXPR x.d [L23] return y.d - x.d; [L23] return y.d - x.d; [L23] return y.d - x.d; [L33] r = cast(a) [L9] COND TRUE !(cond) [L3] __assert_fail("0", "cast_union_tight.c", 3, "reach_error") - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 11 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 0.8s, OverallIterations: 1, TraceHistogramMax: 1, 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=11occurred 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, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! Received shutdown request...