./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/float-benchs/nan_float.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version a4ecdabc Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_40474444-1e25-47bf-b5dd-f171a8e8a4d7/bin/uautomizer/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_40474444-1e25-47bf-b5dd-f171a8e8a4d7/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_40474444-1e25-47bf-b5dd-f171a8e8a4d7/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_40474444-1e25-47bf-b5dd-f171a8e8a4d7/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/float-benchs/nan_float.c -s /tmp/vcloud-vcloud-master/worker/run_dir_40474444-1e25-47bf-b5dd-f171a8e8a4d7/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_40474444-1e25-47bf-b5dd-f171a8e8a4d7/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 e3490f452c75bd943c0f7c3f7fb58032fe6d705c .................................................................................................................................................................................................................................. 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_40474444-1e25-47bf-b5dd-f171a8e8a4d7/bin/uautomizer/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_40474444-1e25-47bf-b5dd-f171a8e8a4d7/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_40474444-1e25-47bf-b5dd-f171a8e8a4d7/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_40474444-1e25-47bf-b5dd-f171a8e8a4d7/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/float-benchs/nan_float.c -s /tmp/vcloud-vcloud-master/worker/run_dir_40474444-1e25-47bf-b5dd-f171a8e8a4d7/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_40474444-1e25-47bf-b5dd-f171a8e8a4d7/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 e3490f452c75bd943c0f7c3f7fb58032fe6d705c ....................................................................................................................................................................................................................................... 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-a4ecdab [2020-11-29 19:32:35,316 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-29 19:32:35,318 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-29 19:32:35,395 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-29 19:32:35,396 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-29 19:32:35,397 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-29 19:32:35,399 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-29 19:32:35,401 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-29 19:32:35,403 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-29 19:32:35,405 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-29 19:32:35,406 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-29 19:32:35,408 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-29 19:32:35,408 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-29 19:32:35,410 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-29 19:32:35,411 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-29 19:32:35,413 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-29 19:32:35,414 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-29 19:32:35,416 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-29 19:32:35,418 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-29 19:32:35,421 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-29 19:32:35,423 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-29 19:32:35,425 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-29 19:32:35,427 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-29 19:32:35,428 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-29 19:32:35,432 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-29 19:32:35,434 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-29 19:32:35,434 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-29 19:32:35,436 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-29 19:32:35,437 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-29 19:32:35,439 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-29 19:32:35,439 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-29 19:32:35,441 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-29 19:32:35,443 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-29 19:32:35,444 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-29 19:32:35,446 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-29 19:32:35,446 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-29 19:32:35,447 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-29 19:32:35,448 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-29 19:32:35,448 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-29 19:32:35,450 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-29 19:32:35,451 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-29 19:32:35,452 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_40474444-1e25-47bf-b5dd-f171a8e8a4d7/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf [2020-11-29 19:32:35,488 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-29 19:32:35,489 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-29 19:32:35,491 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-11-29 19:32:35,491 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-11-29 19:32:35,491 INFO L138 SettingsManager]: * Use SBE=true [2020-11-29 19:32:35,492 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-29 19:32:35,492 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-29 19:32:35,492 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-29 19:32:35,492 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-29 19:32:35,493 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-29 19:32:35,494 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-29 19:32:35,494 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-29 19:32:35,494 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-29 19:32:35,495 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-29 19:32:35,495 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-29 19:32:35,495 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-29 19:32:35,495 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-29 19:32:35,496 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-29 19:32:35,496 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-11-29 19:32:35,496 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-29 19:32:35,496 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-11-29 19:32:35,497 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-29 19:32:35,497 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-29 19:32:35,497 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-11-29 19:32:35,497 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-11-29 19:32:35,498 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-11-29 19:32:35,498 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-11-29 19:32:35,498 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-11-29 19:32:35,498 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-11-29 19:32:35,499 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_40474444-1e25-47bf-b5dd-f171a8e8a4d7/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_40474444-1e25-47bf-b5dd-f171a8e8a4d7/bin/uautomizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> e3490f452c75bd943c0f7c3f7fb58032fe6d705c [2020-11-29 19:32:35,770 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-29 19:32:35,819 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-29 19:32:35,822 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-29 19:32:35,823 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-29 19:32:35,826 INFO L275 PluginConnector]: CDTParser initialized [2020-11-29 19:32:35,827 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_40474444-1e25-47bf-b5dd-f171a8e8a4d7/bin/uautomizer/../../sv-benchmarks/c/float-benchs/nan_float.c [2020-11-29 19:32:35,931 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_40474444-1e25-47bf-b5dd-f171a8e8a4d7/bin/uautomizer/data/ed018bdef/56aae34f652040cbb242442daf183b18/FLAGa264f45a3 [2020-11-29 19:32:36,344 INFO L306 CDTParser]: Found 1 translation units. [2020-11-29 19:32:36,345 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_40474444-1e25-47bf-b5dd-f171a8e8a4d7/sv-benchmarks/c/float-benchs/nan_float.c [2020-11-29 19:32:36,350 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_40474444-1e25-47bf-b5dd-f171a8e8a4d7/bin/uautomizer/data/ed018bdef/56aae34f652040cbb242442daf183b18/FLAGa264f45a3 [2020-11-29 19:32:36,755 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_40474444-1e25-47bf-b5dd-f171a8e8a4d7/bin/uautomizer/data/ed018bdef/56aae34f652040cbb242442daf183b18 [2020-11-29 19:32:36,757 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-29 19:32:36,759 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-29 19:32:36,761 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-29 19:32:36,761 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-29 19:32:36,764 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-29 19:32:36,765 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 07:32:36" (1/1) ... [2020-11-29 19:32:36,767 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@27017d19 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:32:36, skipping insertion in model container [2020-11-29 19:32:36,767 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 07:32:36" (1/1) ... [2020-11-29 19:32:36,775 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-29 19:32:36,786 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-29 19:32:36,914 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-29 19:32:36,924 INFO L203 MainTranslator]: Completed pre-run [2020-11-29 19:32:36,956 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-29 19:32:36,983 INFO L208 MainTranslator]: Completed translation [2020-11-29 19:32:36,985 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:32:36 WrapperNode [2020-11-29 19:32:36,986 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-29 19:32:36,989 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-29 19:32:36,989 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-29 19:32:36,989 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-29 19:32:37,001 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:32:36" (1/1) ... [2020-11-29 19:32:37,008 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:32:36" (1/1) ... [2020-11-29 19:32:37,025 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-29 19:32:37,026 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-29 19:32:37,026 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-29 19:32:37,026 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-29 19:32:37,035 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:32:36" (1/1) ... [2020-11-29 19:32:37,035 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:32:36" (1/1) ... [2020-11-29 19:32:37,036 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:32:36" (1/1) ... [2020-11-29 19:32:37,037 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:32:36" (1/1) ... [2020-11-29 19:32:37,040 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:32:36" (1/1) ... [2020-11-29 19:32:37,042 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:32:36" (1/1) ... [2020-11-29 19:32:37,043 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:32:36" (1/1) ... [2020-11-29 19:32:37,044 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-29 19:32:37,045 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-29 19:32:37,046 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-29 19:32:37,046 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-29 19:32:37,047 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:32:36" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_40474444-1e25-47bf-b5dd-f171a8e8a4d7/bin/uautomizer/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-29 19:32:37,109 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-29 19:32:37,109 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-29 19:32:37,110 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-11-29 19:32:37,110 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-29 19:32:37,469 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-29 19:32:37,470 INFO L298 CfgBuilder]: Removed 8 assume(true) statements. [2020-11-29 19:32:37,471 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 07:32:37 BoogieIcfgContainer [2020-11-29 19:32:37,471 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-29 19:32:37,473 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-11-29 19:32:37,473 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-11-29 19:32:37,478 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-11-29 19:32:37,479 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.11 07:32:36" (1/3) ... [2020-11-29 19:32:37,480 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@63d5de8a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.11 07:32:37, skipping insertion in model container [2020-11-29 19:32:37,480 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:32:36" (2/3) ... [2020-11-29 19:32:37,480 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@63d5de8a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.11 07:32:37, skipping insertion in model container [2020-11-29 19:32:37,481 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 07:32:37" (3/3) ... [2020-11-29 19:32:37,482 INFO L111 eAbstractionObserver]: Analyzing ICFG nan_float.c [2020-11-29 19:32:37,499 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-11-29 19:32:37,503 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-11-29 19:32:37,516 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-11-29 19:32:37,538 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-11-29 19:32:37,539 INFO L378 AbstractCegarLoop]: Hoare is true [2020-11-29 19:32:37,539 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-11-29 19:32:37,539 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-29 19:32:37,539 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-29 19:32:37,539 INFO L382 AbstractCegarLoop]: Difference is false [2020-11-29 19:32:37,539 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-29 19:32:37,539 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-11-29 19:32:37,553 INFO L276 IsEmpty]: Start isEmpty. Operand 10 states. [2020-11-29 19:32:37,557 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2020-11-29 19:32:37,558 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 19:32:37,558 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2020-11-29 19:32:37,559 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-29 19:32:37,569 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 19:32:37,570 INFO L82 PathProgramCache]: Analyzing trace with hash 925605, now seen corresponding path program 1 times [2020-11-29 19:32:37,579 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 19:32:37,579 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2038398750] [2020-11-29 19:32:37,580 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 19:32:37,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 19:32:37,720 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 19:32:37,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 19:32:37,739 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 19:32:37,759 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-29 19:32:37,760 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-11-29 19:32:37,761 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-11-29 19:32:37,781 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 29.11 07:32:37 BoogieIcfgContainer [2020-11-29 19:32:37,781 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-11-29 19:32:37,782 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-11-29 19:32:37,783 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-11-29 19:32:37,783 INFO L275 PluginConnector]: Witness Printer initialized [2020-11-29 19:32:37,784 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 07:32:37" (3/4) ... [2020-11-29 19:32:37,787 INFO L140 WitnessPrinter]: No result that supports witness generation found [2020-11-29 19:32:37,787 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-11-29 19:32:37,790 INFO L168 Benchmark]: Toolchain (without parser) took 1029.43 ms. Allocated memory was 86.0 MB in the beginning and 104.9 MB in the end (delta: 18.9 MB). Free memory was 56.6 MB in the beginning and 80.5 MB in the end (delta: -23.9 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-29 19:32:37,791 INFO L168 Benchmark]: CDTParser took 0.23 ms. Allocated memory is still 86.0 MB. Free memory was 44.0 MB in the beginning and 44.0 MB in the end (delta: 39.3 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-29 19:32:37,792 INFO L168 Benchmark]: CACSL2BoogieTranslator took 225.39 ms. Allocated memory is still 86.0 MB. Free memory was 56.4 MB in the beginning and 64.5 MB in the end (delta: -8.1 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2020-11-29 19:32:37,793 INFO L168 Benchmark]: Boogie Procedure Inliner took 36.47 ms. Allocated memory is still 86.0 MB. Free memory was 64.5 MB in the beginning and 63.3 MB in the end (delta: 1.2 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-29 19:32:37,794 INFO L168 Benchmark]: Boogie Preprocessor took 18.70 ms. Allocated memory is still 86.0 MB. Free memory was 63.1 MB in the beginning and 62.4 MB in the end (delta: 676.5 kB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-29 19:32:37,795 INFO L168 Benchmark]: RCFGBuilder took 426.29 ms. Allocated memory is still 86.0 MB. Free memory was 62.1 MB in the beginning and 52.4 MB in the end (delta: 9.8 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2020-11-29 19:32:37,796 INFO L168 Benchmark]: TraceAbstraction took 308.36 ms. Allocated memory was 86.0 MB in the beginning and 104.9 MB in the end (delta: 18.9 MB). Free memory was 51.9 MB in the beginning and 81.0 MB in the end (delta: -29.1 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-29 19:32:37,797 INFO L168 Benchmark]: Witness Printer took 5.02 ms. Allocated memory is still 104.9 MB. Free memory was 81.0 MB in the beginning and 80.5 MB in the end (delta: 478.3 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-29 19:32:37,801 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23 ms. Allocated memory is still 86.0 MB. Free memory was 44.0 MB in the beginning and 44.0 MB in the end (delta: 39.3 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 225.39 ms. Allocated memory is still 86.0 MB. Free memory was 56.4 MB in the beginning and 64.5 MB in the end (delta: -8.1 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 36.47 ms. Allocated memory is still 86.0 MB. Free memory was 64.5 MB in the beginning and 63.3 MB in the end (delta: 1.2 MB). There was no memory consumed. Max. memory is 16.1 GB. * Boogie Preprocessor took 18.70 ms. Allocated memory is still 86.0 MB. Free memory was 63.1 MB in the beginning and 62.4 MB in the end (delta: 676.5 kB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 426.29 ms. Allocated memory is still 86.0 MB. Free memory was 62.1 MB in the beginning and 52.4 MB in the end (delta: 9.8 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * TraceAbstraction took 308.36 ms. Allocated memory was 86.0 MB in the beginning and 104.9 MB in the end (delta: 18.9 MB). Free memory was 51.9 MB in the beginning and 81.0 MB in the end (delta: -29.1 MB). There was no memory consumed. Max. memory is 16.1 GB. * Witness Printer took 5.02 ms. Allocated memory is still 104.9 MB. Free memory was 81.0 MB in the beginning and 80.5 MB in the end (delta: 478.3 kB). There was no memory consumed. 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 someBinaryFLOATComparisonOperation at line 15. Possible FailurePath: [L12] float x; [L13] x = __VERIFIER_nondet_float() [L8] COND TRUE !(cond) [L3] __assert_fail("0", "nan_float.c", 3, "reach_error") - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 10 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 0.2s, 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=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, 4 NumberOfCodeBlocks, 4 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-a4ecdab [2020-11-29 19:32:40,303 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-29 19:32:40,305 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-29 19:32:40,347 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-29 19:32:40,348 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-29 19:32:40,354 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-29 19:32:40,357 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-29 19:32:40,362 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-29 19:32:40,366 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-29 19:32:40,372 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-29 19:32:40,374 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-29 19:32:40,381 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-29 19:32:40,382 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-29 19:32:40,386 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-29 19:32:40,387 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-29 19:32:40,389 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-29 19:32:40,391 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-29 19:32:40,395 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-29 19:32:40,401 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-29 19:32:40,409 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-29 19:32:40,417 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-29 19:32:40,419 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-29 19:32:40,420 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-29 19:32:40,422 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-29 19:32:40,426 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-29 19:32:40,430 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-29 19:32:40,430 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-29 19:32:40,431 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-29 19:32:40,433 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-29 19:32:40,441 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-29 19:32:40,442 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-29 19:32:40,443 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-29 19:32:40,445 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-29 19:32:40,446 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-29 19:32:40,447 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-29 19:32:40,447 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-29 19:32:40,448 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-29 19:32:40,448 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-29 19:32:40,449 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-29 19:32:40,451 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-29 19:32:40,452 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-29 19:32:40,453 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_40474444-1e25-47bf-b5dd-f171a8e8a4d7/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2020-11-29 19:32:40,500 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-29 19:32:40,500 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-29 19:32:40,504 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-11-29 19:32:40,504 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-11-29 19:32:40,504 INFO L138 SettingsManager]: * Use SBE=true [2020-11-29 19:32:40,505 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-29 19:32:40,505 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-29 19:32:40,505 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-29 19:32:40,506 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-29 19:32:40,506 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-29 19:32:40,507 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-29 19:32:40,507 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-29 19:32:40,508 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2020-11-29 19:32:40,508 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2020-11-29 19:32:40,508 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-29 19:32:40,509 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-29 19:32:40,509 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-29 19:32:40,509 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-29 19:32:40,510 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-29 19:32:40,510 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-11-29 19:32:40,510 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-29 19:32:40,510 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-11-29 19:32:40,511 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-29 19:32:40,511 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-29 19:32:40,511 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-11-29 19:32:40,512 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-11-29 19:32:40,512 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2020-11-29 19:32:40,512 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2020-11-29 19:32:40,512 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-11-29 19:32:40,513 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-11-29 19:32:40,513 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-11-29 19:32:40,513 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_40474444-1e25-47bf-b5dd-f171a8e8a4d7/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_40474444-1e25-47bf-b5dd-f171a8e8a4d7/bin/uautomizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> e3490f452c75bd943c0f7c3f7fb58032fe6d705c [2020-11-29 19:32:40,939 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-29 19:32:40,964 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-29 19:32:40,969 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-29 19:32:40,970 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-29 19:32:40,971 INFO L275 PluginConnector]: CDTParser initialized [2020-11-29 19:32:40,972 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_40474444-1e25-47bf-b5dd-f171a8e8a4d7/bin/uautomizer/../../sv-benchmarks/c/float-benchs/nan_float.c [2020-11-29 19:32:41,048 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_40474444-1e25-47bf-b5dd-f171a8e8a4d7/bin/uautomizer/data/b9659aab5/4d3d1ea996674b26ba73113b5e792e71/FLAGeaff01d1a [2020-11-29 19:32:41,575 INFO L306 CDTParser]: Found 1 translation units. [2020-11-29 19:32:41,576 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_40474444-1e25-47bf-b5dd-f171a8e8a4d7/sv-benchmarks/c/float-benchs/nan_float.c [2020-11-29 19:32:41,585 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_40474444-1e25-47bf-b5dd-f171a8e8a4d7/bin/uautomizer/data/b9659aab5/4d3d1ea996674b26ba73113b5e792e71/FLAGeaff01d1a [2020-11-29 19:32:41,945 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_40474444-1e25-47bf-b5dd-f171a8e8a4d7/bin/uautomizer/data/b9659aab5/4d3d1ea996674b26ba73113b5e792e71 [2020-11-29 19:32:41,947 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-29 19:32:41,949 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-29 19:32:41,952 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-29 19:32:41,952 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-29 19:32:41,956 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-29 19:32:41,956 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 07:32:41" (1/1) ... [2020-11-29 19:32:41,960 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@233e806e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:32:41, skipping insertion in model container [2020-11-29 19:32:41,960 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 07:32:41" (1/1) ... [2020-11-29 19:32:41,967 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-29 19:32:41,980 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-29 19:32:42,117 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-29 19:32:42,133 INFO L203 MainTranslator]: Completed pre-run [2020-11-29 19:32:42,147 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-29 19:32:42,162 INFO L208 MainTranslator]: Completed translation [2020-11-29 19:32:42,163 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:32:42 WrapperNode [2020-11-29 19:32:42,163 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-29 19:32:42,164 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-29 19:32:42,164 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-29 19:32:42,165 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-29 19:32:42,172 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:32:42" (1/1) ... [2020-11-29 19:32:42,182 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:32:42" (1/1) ... [2020-11-29 19:32:42,198 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-29 19:32:42,200 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-29 19:32:42,200 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-29 19:32:42,200 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-29 19:32:42,230 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:32:42" (1/1) ... [2020-11-29 19:32:42,230 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:32:42" (1/1) ... [2020-11-29 19:32:42,256 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:32:42" (1/1) ... [2020-11-29 19:32:42,257 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:32:42" (1/1) ... [2020-11-29 19:32:42,266 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:32:42" (1/1) ... [2020-11-29 19:32:42,273 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:32:42" (1/1) ... [2020-11-29 19:32:42,275 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:32:42" (1/1) ... [2020-11-29 19:32:42,277 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-29 19:32:42,278 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-29 19:32:42,278 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-29 19:32:42,278 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-29 19:32:42,279 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:32:42" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_40474444-1e25-47bf-b5dd-f171a8e8a4d7/bin/uautomizer/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-29 19:32:42,330 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2020-11-29 19:32:42,330 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-29 19:32:42,330 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-29 19:32:42,331 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-29 19:32:42,507 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-29 19:32:42,507 INFO L298 CfgBuilder]: Removed 8 assume(true) statements. [2020-11-29 19:32:42,509 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 07:32:42 BoogieIcfgContainer [2020-11-29 19:32:42,509 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-29 19:32:42,511 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-11-29 19:32:42,511 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-11-29 19:32:42,514 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-11-29 19:32:42,514 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.11 07:32:41" (1/3) ... [2020-11-29 19:32:42,515 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@27d8a47a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.11 07:32:42, skipping insertion in model container [2020-11-29 19:32:42,515 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:32:42" (2/3) ... [2020-11-29 19:32:42,516 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@27d8a47a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.11 07:32:42, skipping insertion in model container [2020-11-29 19:32:42,516 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 07:32:42" (3/3) ... [2020-11-29 19:32:42,517 INFO L111 eAbstractionObserver]: Analyzing ICFG nan_float.c [2020-11-29 19:32:42,527 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-11-29 19:32:42,531 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-11-29 19:32:42,543 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-11-29 19:32:42,565 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-11-29 19:32:42,566 INFO L378 AbstractCegarLoop]: Hoare is true [2020-11-29 19:32:42,566 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-11-29 19:32:42,566 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-29 19:32:42,566 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-29 19:32:42,566 INFO L382 AbstractCegarLoop]: Difference is false [2020-11-29 19:32:42,567 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-29 19:32:42,567 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-11-29 19:32:42,579 INFO L276 IsEmpty]: Start isEmpty. Operand 10 states. [2020-11-29 19:32:42,585 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2020-11-29 19:32:42,585 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 19:32:42,585 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2020-11-29 19:32:42,586 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-29 19:32:42,594 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 19:32:42,595 INFO L82 PathProgramCache]: Analyzing trace with hash 925605, now seen corresponding path program 1 times [2020-11-29 19:32:42,607 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-11-29 19:32:42,608 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [412489019] [2020-11-29 19:32:42,608 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_40474444-1e25-47bf-b5dd-f171a8e8a4d7/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 [2020-11-29 19:32:42,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 19:32:42,712 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 19:32:42,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 19:32:42,738 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 19:32:42,791 INFO L173 FreeRefinementEngine]: Strategy WOLF found a feasible trace [2020-11-29 19:32:42,792 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-11-29 19:32:42,992 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 mathsat -unsat_core_generation=3 [2020-11-29 19:32:43,012 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 29.11 07:32:43 BoogieIcfgContainer [2020-11-29 19:32:43,013 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-11-29 19:32:43,015 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-11-29 19:32:43,015 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-11-29 19:32:43,015 INFO L275 PluginConnector]: Witness Printer initialized [2020-11-29 19:32:43,016 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 07:32:42" (3/4) ... [2020-11-29 19:32:43,018 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2020-11-29 19:32:43,075 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_40474444-1e25-47bf-b5dd-f171a8e8a4d7/bin/uautomizer/witness.graphml [2020-11-29 19:32:43,077 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-11-29 19:32:43,079 INFO L168 Benchmark]: Toolchain (without parser) took 1129.09 ms. Allocated memory is still 65.0 MB. Free memory was 46.1 MB in the beginning and 42.2 MB in the end (delta: 3.9 MB). Peak memory consumption was 2.5 MB. Max. memory is 16.1 GB. [2020-11-29 19:32:43,079 INFO L168 Benchmark]: CDTParser took 0.22 ms. Allocated memory is still 65.0 MB. Free memory is still 46.3 MB. There was no memory consumed. Max. memory is 16.1 GB. [2020-11-29 19:32:43,080 INFO L168 Benchmark]: CACSL2BoogieTranslator took 212.01 ms. Allocated memory is still 65.0 MB. Free memory was 45.9 MB in the beginning and 36.4 MB in the end (delta: 9.5 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2020-11-29 19:32:43,081 INFO L168 Benchmark]: Boogie Procedure Inliner took 33.94 ms. Allocated memory is still 65.0 MB. Free memory was 36.3 MB in the beginning and 34.9 MB in the end (delta: 1.3 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-29 19:32:43,082 INFO L168 Benchmark]: Boogie Preprocessor took 77.31 ms. Allocated memory is still 65.0 MB. Free memory was 34.9 MB in the beginning and 48.5 MB in the end (delta: -13.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-29 19:32:43,082 INFO L168 Benchmark]: RCFGBuilder took 231.54 ms. Allocated memory is still 65.0 MB. Free memory was 48.5 MB in the beginning and 38.4 MB in the end (delta: 10.2 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2020-11-29 19:32:43,083 INFO L168 Benchmark]: TraceAbstraction took 502.37 ms. Allocated memory is still 65.0 MB. Free memory was 37.9 MB in the beginning and 43.7 MB in the end (delta: -5.8 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-29 19:32:43,084 INFO L168 Benchmark]: Witness Printer took 62.04 ms. Allocated memory is still 65.0 MB. Free memory was 43.7 MB in the beginning and 42.2 MB in the end (delta: 1.5 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-29 19:32:43,087 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22 ms. Allocated memory is still 65.0 MB. Free memory is still 46.3 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 212.01 ms. Allocated memory is still 65.0 MB. Free memory was 45.9 MB in the beginning and 36.4 MB in the end (delta: 9.5 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 33.94 ms. Allocated memory is still 65.0 MB. Free memory was 36.3 MB in the beginning and 34.9 MB in the end (delta: 1.3 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 77.31 ms. Allocated memory is still 65.0 MB. Free memory was 34.9 MB in the beginning and 48.5 MB in the end (delta: -13.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 231.54 ms. Allocated memory is still 65.0 MB. Free memory was 48.5 MB in the beginning and 38.4 MB in the end (delta: 10.2 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * TraceAbstraction took 502.37 ms. Allocated memory is still 65.0 MB. Free memory was 37.9 MB in the beginning and 43.7 MB in the end (delta: -5.8 MB). There was no memory consumed. Max. memory is 16.1 GB. * Witness Printer took 62.04 ms. Allocated memory is still 65.0 MB. Free memory was 43.7 MB in the beginning and 42.2 MB in the end (delta: 1.5 MB). There was no memory consumed. 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: [L12] float x; [L13] x = __VERIFIER_nondet_float() [L8] COND TRUE !(cond) [L3] __assert_fail("0", "nan_float.c", 3, "reach_error") - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 10 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 0.4s, 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=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, 4 NumberOfCodeBlocks, 4 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...