./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/float-benchs/nan_double.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_801496ea-d9b8-4331-be45-a7f819bb8fd5/bin/uautomizer/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_801496ea-d9b8-4331-be45-a7f819bb8fd5/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_801496ea-d9b8-4331-be45-a7f819bb8fd5/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_801496ea-d9b8-4331-be45-a7f819bb8fd5/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/float-benchs/nan_double.c -s /tmp/vcloud-vcloud-master/worker/run_dir_801496ea-d9b8-4331-be45-a7f819bb8fd5/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_801496ea-d9b8-4331-be45-a7f819bb8fd5/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 e70fb0031ee54295dcc583b462c02b21fc0481d0 .................................................................................................................................................................................................................................. 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_801496ea-d9b8-4331-be45-a7f819bb8fd5/bin/uautomizer/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_801496ea-d9b8-4331-be45-a7f819bb8fd5/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_801496ea-d9b8-4331-be45-a7f819bb8fd5/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_801496ea-d9b8-4331-be45-a7f819bb8fd5/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/float-benchs/nan_double.c -s /tmp/vcloud-vcloud-master/worker/run_dir_801496ea-d9b8-4331-be45-a7f819bb8fd5/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_801496ea-d9b8-4331-be45-a7f819bb8fd5/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 e70fb0031ee54295dcc583b462c02b21fc0481d0 ....................................................................................................................................................................................................................................... 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 18:21:40,185 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-29 18:21:40,188 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-29 18:21:40,242 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-29 18:21:40,243 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-29 18:21:40,244 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-29 18:21:40,246 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-29 18:21:40,249 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-29 18:21:40,251 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-29 18:21:40,253 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-29 18:21:40,254 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-29 18:21:40,256 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-29 18:21:40,257 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-29 18:21:40,258 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-29 18:21:40,260 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-29 18:21:40,262 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-29 18:21:40,271 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-29 18:21:40,272 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-29 18:21:40,275 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-29 18:21:40,278 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-29 18:21:40,280 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-29 18:21:40,294 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-29 18:21:40,296 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-29 18:21:40,297 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-29 18:21:40,301 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-29 18:21:40,301 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-29 18:21:40,302 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-29 18:21:40,303 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-29 18:21:40,304 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-29 18:21:40,305 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-29 18:21:40,305 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-29 18:21:40,306 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-29 18:21:40,307 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-29 18:21:40,308 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-29 18:21:40,310 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-29 18:21:40,310 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-29 18:21:40,311 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-29 18:21:40,311 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-29 18:21:40,311 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-29 18:21:40,312 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-29 18:21:40,313 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-29 18:21:40,314 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_801496ea-d9b8-4331-be45-a7f819bb8fd5/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf [2020-11-29 18:21:40,341 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-29 18:21:40,341 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-29 18:21:40,342 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-11-29 18:21:40,343 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-11-29 18:21:40,343 INFO L138 SettingsManager]: * Use SBE=true [2020-11-29 18:21:40,343 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-29 18:21:40,343 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-29 18:21:40,344 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-29 18:21:40,344 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-29 18:21:40,344 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-29 18:21:40,344 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-29 18:21:40,344 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-29 18:21:40,345 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-29 18:21:40,345 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-29 18:21:40,345 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-29 18:21:40,345 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-29 18:21:40,345 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-29 18:21:40,346 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-29 18:21:40,346 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-11-29 18:21:40,346 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-29 18:21:40,346 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-11-29 18:21:40,347 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-29 18:21:40,347 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-29 18:21:40,347 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-11-29 18:21:40,347 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-11-29 18:21:40,347 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-11-29 18:21:40,348 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-11-29 18:21:40,348 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-11-29 18:21:40,348 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-11-29 18:21:40,348 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_801496ea-d9b8-4331-be45-a7f819bb8fd5/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_801496ea-d9b8-4331-be45-a7f819bb8fd5/bin/uautomizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> e70fb0031ee54295dcc583b462c02b21fc0481d0 [2020-11-29 18:21:40,622 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-29 18:21:40,652 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-29 18:21:40,655 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-29 18:21:40,657 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-29 18:21:40,658 INFO L275 PluginConnector]: CDTParser initialized [2020-11-29 18:21:40,659 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_801496ea-d9b8-4331-be45-a7f819bb8fd5/bin/uautomizer/../../sv-benchmarks/c/float-benchs/nan_double.c [2020-11-29 18:21:40,735 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_801496ea-d9b8-4331-be45-a7f819bb8fd5/bin/uautomizer/data/dd8f02ee4/db19a0d9b04149f0b848cad3453f72a2/FLAG4793db2a4 [2020-11-29 18:21:41,302 INFO L306 CDTParser]: Found 1 translation units. [2020-11-29 18:21:41,303 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_801496ea-d9b8-4331-be45-a7f819bb8fd5/sv-benchmarks/c/float-benchs/nan_double.c [2020-11-29 18:21:41,316 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_801496ea-d9b8-4331-be45-a7f819bb8fd5/bin/uautomizer/data/dd8f02ee4/db19a0d9b04149f0b848cad3453f72a2/FLAG4793db2a4 [2020-11-29 18:21:41,653 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_801496ea-d9b8-4331-be45-a7f819bb8fd5/bin/uautomizer/data/dd8f02ee4/db19a0d9b04149f0b848cad3453f72a2 [2020-11-29 18:21:41,656 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-29 18:21:41,658 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-29 18:21:41,660 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-29 18:21:41,660 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-29 18:21:41,664 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-29 18:21:41,665 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 06:21:41" (1/1) ... [2020-11-29 18:21:41,668 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@250a7d9b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:21:41, skipping insertion in model container [2020-11-29 18:21:41,668 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 06:21:41" (1/1) ... [2020-11-29 18:21:41,677 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-29 18:21:41,692 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-29 18:21:41,887 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-29 18:21:41,897 INFO L203 MainTranslator]: Completed pre-run [2020-11-29 18:21:41,929 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-29 18:21:41,960 INFO L208 MainTranslator]: Completed translation [2020-11-29 18:21:41,963 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:21:41 WrapperNode [2020-11-29 18:21:41,963 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-29 18:21:41,965 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-29 18:21:41,965 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-29 18:21:41,966 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-29 18:21:41,977 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:21:41" (1/1) ... [2020-11-29 18:21:41,985 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:21:41" (1/1) ... [2020-11-29 18:21:42,003 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-29 18:21:42,004 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-29 18:21:42,005 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-29 18:21:42,005 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-29 18:21:42,014 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:21:41" (1/1) ... [2020-11-29 18:21:42,014 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:21:41" (1/1) ... [2020-11-29 18:21:42,016 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:21:41" (1/1) ... [2020-11-29 18:21:42,017 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:21:41" (1/1) ... [2020-11-29 18:21:42,025 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:21:41" (1/1) ... [2020-11-29 18:21:42,028 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:21:41" (1/1) ... [2020-11-29 18:21:42,029 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:21:41" (1/1) ... [2020-11-29 18:21:42,039 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-29 18:21:42,040 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-29 18:21:42,041 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-29 18:21:42,041 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-29 18:21:42,042 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:21:41" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_801496ea-d9b8-4331-be45-a7f819bb8fd5/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 18:21:42,122 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-29 18:21:42,123 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-29 18:21:42,124 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-11-29 18:21:42,125 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-29 18:21:42,450 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-29 18:21:42,451 INFO L298 CfgBuilder]: Removed 8 assume(true) statements. [2020-11-29 18:21:42,452 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 06:21:42 BoogieIcfgContainer [2020-11-29 18:21:42,452 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-29 18:21:42,454 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-11-29 18:21:42,454 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-11-29 18:21:42,478 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-11-29 18:21:42,478 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.11 06:21:41" (1/3) ... [2020-11-29 18:21:42,479 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@40f4abd9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.11 06:21:42, skipping insertion in model container [2020-11-29 18:21:42,480 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:21:41" (2/3) ... [2020-11-29 18:21:42,480 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@40f4abd9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.11 06:21:42, skipping insertion in model container [2020-11-29 18:21:42,480 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 06:21:42" (3/3) ... [2020-11-29 18:21:42,482 INFO L111 eAbstractionObserver]: Analyzing ICFG nan_double.c [2020-11-29 18:21:42,505 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-11-29 18:21:42,510 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-11-29 18:21:42,530 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-11-29 18:21:42,571 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-11-29 18:21:42,571 INFO L378 AbstractCegarLoop]: Hoare is true [2020-11-29 18:21:42,571 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-11-29 18:21:42,572 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-29 18:21:42,572 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-29 18:21:42,572 INFO L382 AbstractCegarLoop]: Difference is false [2020-11-29 18:21:42,572 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-29 18:21:42,572 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-11-29 18:21:42,589 INFO L276 IsEmpty]: Start isEmpty. Operand 10 states. [2020-11-29 18:21:42,595 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2020-11-29 18:21:42,595 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 18:21:42,596 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2020-11-29 18:21:42,596 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-29 18:21:42,601 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 18:21:42,602 INFO L82 PathProgramCache]: Analyzing trace with hash 925605, now seen corresponding path program 1 times [2020-11-29 18:21:42,609 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 18:21:42,610 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1292758186] [2020-11-29 18:21:42,610 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 18:21:42,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 18:21:42,738 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 18:21:42,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 18:21:42,760 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 18:21:42,784 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-29 18:21:42,785 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-11-29 18:21:42,786 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-11-29 18:21:42,809 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 29.11 06:21:42 BoogieIcfgContainer [2020-11-29 18:21:42,809 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-11-29 18:21:42,810 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-11-29 18:21:42,811 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-11-29 18:21:42,811 INFO L275 PluginConnector]: Witness Printer initialized [2020-11-29 18:21:42,812 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 06:21:42" (3/4) ... [2020-11-29 18:21:42,815 INFO L140 WitnessPrinter]: No result that supports witness generation found [2020-11-29 18:21:42,816 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-11-29 18:21:42,819 INFO L168 Benchmark]: Toolchain (without parser) took 1159.33 ms. Allocated memory is still 113.2 MB. Free memory was 82.3 MB in the beginning and 65.2 MB in the end (delta: 17.0 MB). Peak memory consumption was 13.8 MB. Max. memory is 16.1 GB. [2020-11-29 18:21:42,820 INFO L168 Benchmark]: CDTParser took 0.32 ms. Allocated memory is still 77.6 MB. Free memory was 35.7 MB in the beginning and 35.6 MB in the end (delta: 63.1 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-29 18:21:42,821 INFO L168 Benchmark]: CACSL2BoogieTranslator took 303.63 ms. Allocated memory is still 113.2 MB. Free memory was 81.9 MB in the beginning and 89.9 MB in the end (delta: -8.1 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2020-11-29 18:21:42,823 INFO L168 Benchmark]: Boogie Procedure Inliner took 38.19 ms. Allocated memory is still 113.2 MB. Free memory was 89.9 MB in the beginning and 88.6 MB in the end (delta: 1.4 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-29 18:21:42,824 INFO L168 Benchmark]: Boogie Preprocessor took 34.69 ms. Allocated memory is still 113.2 MB. Free memory was 88.6 MB in the beginning and 87.9 MB in the end (delta: 734.7 kB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-29 18:21:42,825 INFO L168 Benchmark]: RCFGBuilder took 412.53 ms. Allocated memory is still 113.2 MB. Free memory was 87.9 MB in the beginning and 77.4 MB in the end (delta: 10.5 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2020-11-29 18:21:42,826 INFO L168 Benchmark]: TraceAbstraction took 355.15 ms. Allocated memory is still 113.2 MB. Free memory was 76.9 MB in the beginning and 65.5 MB in the end (delta: 11.4 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2020-11-29 18:21:42,827 INFO L168 Benchmark]: Witness Printer took 5.65 ms. Allocated memory is still 113.2 MB. Free memory was 65.5 MB in the beginning and 65.2 MB in the end (delta: 295.2 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-29 18:21:42,833 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.32 ms. Allocated memory is still 77.6 MB. Free memory was 35.7 MB in the beginning and 35.6 MB in the end (delta: 63.1 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 303.63 ms. Allocated memory is still 113.2 MB. Free memory was 81.9 MB in the beginning and 89.9 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 38.19 ms. Allocated memory is still 113.2 MB. Free memory was 89.9 MB in the beginning and 88.6 MB in the end (delta: 1.4 MB). There was no memory consumed. Max. memory is 16.1 GB. * Boogie Preprocessor took 34.69 ms. Allocated memory is still 113.2 MB. Free memory was 88.6 MB in the beginning and 87.9 MB in the end (delta: 734.7 kB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 412.53 ms. Allocated memory is still 113.2 MB. Free memory was 87.9 MB in the beginning and 77.4 MB in the end (delta: 10.5 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * TraceAbstraction took 355.15 ms. Allocated memory is still 113.2 MB. Free memory was 76.9 MB in the beginning and 65.5 MB in the end (delta: 11.4 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * Witness Printer took 5.65 ms. Allocated memory is still 113.2 MB. Free memory was 65.5 MB in the beginning and 65.2 MB in the end (delta: 295.2 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 someBinaryDOUBLEComparisonOperation at line 15. Possible FailurePath: [L12] double x; [L13] x = __VERIFIER_nondet_double() [L8] COND TRUE !(cond) [L3] __assert_fail("0", "nan_double.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 18:21:45,638 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-29 18:21:45,643 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-29 18:21:45,693 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-29 18:21:45,694 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-29 18:21:45,700 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-29 18:21:45,703 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-29 18:21:45,710 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-29 18:21:45,714 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-29 18:21:45,720 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-29 18:21:45,722 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-29 18:21:45,730 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-29 18:21:45,739 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-29 18:21:45,741 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-29 18:21:45,742 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-29 18:21:45,744 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-29 18:21:45,745 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-29 18:21:45,746 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-29 18:21:45,751 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-29 18:21:45,755 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-29 18:21:45,757 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-29 18:21:45,759 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-29 18:21:45,761 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-29 18:21:45,762 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-29 18:21:45,766 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-29 18:21:45,767 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-29 18:21:45,768 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-29 18:21:45,769 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-29 18:21:45,770 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-29 18:21:45,771 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-29 18:21:45,772 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-29 18:21:45,773 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-29 18:21:45,774 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-29 18:21:45,775 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-29 18:21:45,777 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-29 18:21:45,777 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-29 18:21:45,779 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-29 18:21:45,779 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-29 18:21:45,780 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-29 18:21:45,781 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-29 18:21:45,782 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-29 18:21:45,783 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_801496ea-d9b8-4331-be45-a7f819bb8fd5/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2020-11-29 18:21:45,840 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-29 18:21:45,841 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-29 18:21:45,845 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-11-29 18:21:45,845 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-11-29 18:21:45,846 INFO L138 SettingsManager]: * Use SBE=true [2020-11-29 18:21:45,846 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-29 18:21:45,846 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-29 18:21:45,847 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-29 18:21:45,847 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-29 18:21:45,847 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-29 18:21:45,848 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-29 18:21:45,849 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-29 18:21:45,849 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2020-11-29 18:21:45,849 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2020-11-29 18:21:45,849 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-29 18:21:45,850 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-29 18:21:45,850 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-29 18:21:45,850 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-29 18:21:45,850 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-29 18:21:45,851 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-11-29 18:21:45,851 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-29 18:21:45,851 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-11-29 18:21:45,851 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-29 18:21:45,852 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-29 18:21:45,852 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-11-29 18:21:45,852 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-11-29 18:21:45,853 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2020-11-29 18:21:45,853 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2020-11-29 18:21:45,853 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-11-29 18:21:45,853 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-11-29 18:21:45,854 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-11-29 18:21:45,854 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_801496ea-d9b8-4331-be45-a7f819bb8fd5/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_801496ea-d9b8-4331-be45-a7f819bb8fd5/bin/uautomizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> e70fb0031ee54295dcc583b462c02b21fc0481d0 [2020-11-29 18:21:46,325 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-29 18:21:46,360 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-29 18:21:46,366 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-29 18:21:46,368 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-29 18:21:46,369 INFO L275 PluginConnector]: CDTParser initialized [2020-11-29 18:21:46,371 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_801496ea-d9b8-4331-be45-a7f819bb8fd5/bin/uautomizer/../../sv-benchmarks/c/float-benchs/nan_double.c [2020-11-29 18:21:46,472 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_801496ea-d9b8-4331-be45-a7f819bb8fd5/bin/uautomizer/data/f9c14e6a5/b746d9bb96cc4f398dfc65eb4f03bdc1/FLAG4a4efc524 [2020-11-29 18:21:47,045 INFO L306 CDTParser]: Found 1 translation units. [2020-11-29 18:21:47,047 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_801496ea-d9b8-4331-be45-a7f819bb8fd5/sv-benchmarks/c/float-benchs/nan_double.c [2020-11-29 18:21:47,055 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_801496ea-d9b8-4331-be45-a7f819bb8fd5/bin/uautomizer/data/f9c14e6a5/b746d9bb96cc4f398dfc65eb4f03bdc1/FLAG4a4efc524 [2020-11-29 18:21:47,399 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_801496ea-d9b8-4331-be45-a7f819bb8fd5/bin/uautomizer/data/f9c14e6a5/b746d9bb96cc4f398dfc65eb4f03bdc1 [2020-11-29 18:21:47,403 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-29 18:21:47,405 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-29 18:21:47,407 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-29 18:21:47,408 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-29 18:21:47,412 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-29 18:21:47,413 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 06:21:47" (1/1) ... [2020-11-29 18:21:47,416 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4e36dbad and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:21:47, skipping insertion in model container [2020-11-29 18:21:47,416 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 06:21:47" (1/1) ... [2020-11-29 18:21:47,426 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-29 18:21:47,441 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-29 18:21:47,633 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-29 18:21:47,660 INFO L203 MainTranslator]: Completed pre-run [2020-11-29 18:21:47,686 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-29 18:21:47,747 INFO L208 MainTranslator]: Completed translation [2020-11-29 18:21:47,769 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:21:47 WrapperNode [2020-11-29 18:21:47,769 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-29 18:21:47,771 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-29 18:21:47,771 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-29 18:21:47,774 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-29 18:21:47,782 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:21:47" (1/1) ... [2020-11-29 18:21:47,799 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:21:47" (1/1) ... [2020-11-29 18:21:47,814 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-29 18:21:47,815 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-29 18:21:47,815 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-29 18:21:47,815 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-29 18:21:47,822 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:21:47" (1/1) ... [2020-11-29 18:21:47,823 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:21:47" (1/1) ... [2020-11-29 18:21:47,825 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:21:47" (1/1) ... [2020-11-29 18:21:47,826 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:21:47" (1/1) ... [2020-11-29 18:21:47,832 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:21:47" (1/1) ... [2020-11-29 18:21:47,834 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:21:47" (1/1) ... [2020-11-29 18:21:47,836 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:21:47" (1/1) ... [2020-11-29 18:21:47,839 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-29 18:21:47,840 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-29 18:21:47,840 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-29 18:21:47,840 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-29 18:21:47,841 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:21:47" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_801496ea-d9b8-4331-be45-a7f819bb8fd5/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 18:21:47,929 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2020-11-29 18:21:47,929 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-29 18:21:47,930 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-29 18:21:47,930 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-29 18:21:48,375 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-29 18:21:48,375 INFO L298 CfgBuilder]: Removed 8 assume(true) statements. [2020-11-29 18:21:48,377 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 06:21:48 BoogieIcfgContainer [2020-11-29 18:21:48,377 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-29 18:21:48,379 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-11-29 18:21:48,380 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-11-29 18:21:48,392 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-11-29 18:21:48,393 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.11 06:21:47" (1/3) ... [2020-11-29 18:21:48,394 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@56efb85f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.11 06:21:48, skipping insertion in model container [2020-11-29 18:21:48,394 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:21:47" (2/3) ... [2020-11-29 18:21:48,395 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@56efb85f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.11 06:21:48, skipping insertion in model container [2020-11-29 18:21:48,395 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 06:21:48" (3/3) ... [2020-11-29 18:21:48,397 INFO L111 eAbstractionObserver]: Analyzing ICFG nan_double.c [2020-11-29 18:21:48,417 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-11-29 18:21:48,424 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-11-29 18:21:48,439 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-11-29 18:21:48,485 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-11-29 18:21:48,485 INFO L378 AbstractCegarLoop]: Hoare is true [2020-11-29 18:21:48,485 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-11-29 18:21:48,485 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-29 18:21:48,486 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-29 18:21:48,486 INFO L382 AbstractCegarLoop]: Difference is false [2020-11-29 18:21:48,486 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-29 18:21:48,486 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-11-29 18:21:48,501 INFO L276 IsEmpty]: Start isEmpty. Operand 10 states. [2020-11-29 18:21:48,507 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2020-11-29 18:21:48,507 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 18:21:48,508 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2020-11-29 18:21:48,508 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-29 18:21:48,517 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 18:21:48,518 INFO L82 PathProgramCache]: Analyzing trace with hash 925605, now seen corresponding path program 1 times [2020-11-29 18:21:48,531 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-11-29 18:21:48,532 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1960240116] [2020-11-29 18:21:48,533 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_801496ea-d9b8-4331-be45-a7f819bb8fd5/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 18:21:48,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 18:21:48,678 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 18:21:48,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 18:21:48,706 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 18:21:48,739 INFO L173 FreeRefinementEngine]: Strategy WOLF found a feasible trace [2020-11-29 18:21:48,740 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-11-29 18:21:48,964 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 mathsat -unsat_core_generation=3 [2020-11-29 18:21:48,995 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 29.11 06:21:48 BoogieIcfgContainer [2020-11-29 18:21:48,996 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-11-29 18:21:48,999 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-11-29 18:21:48,999 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-11-29 18:21:48,999 INFO L275 PluginConnector]: Witness Printer initialized [2020-11-29 18:21:49,000 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 06:21:48" (3/4) ... [2020-11-29 18:21:49,003 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2020-11-29 18:21:49,070 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_801496ea-d9b8-4331-be45-a7f819bb8fd5/bin/uautomizer/witness.graphml [2020-11-29 18:21:49,073 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-11-29 18:21:49,076 INFO L168 Benchmark]: Toolchain (without parser) took 1669.24 ms. Allocated memory is still 73.4 MB. Free memory was 51.6 MB in the beginning and 49.8 MB in the end (delta: 1.9 MB). Peak memory consumption was 2.0 MB. Max. memory is 16.1 GB. [2020-11-29 18:21:49,078 INFO L168 Benchmark]: CDTParser took 0.32 ms. Allocated memory is still 54.5 MB. Free memory was 35.5 MB in the beginning and 35.4 MB in the end (delta: 73.4 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-29 18:21:49,080 INFO L168 Benchmark]: CACSL2BoogieTranslator took 362.46 ms. Allocated memory is still 73.4 MB. Free memory was 51.4 MB in the beginning and 56.4 MB in the end (delta: -5.0 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2020-11-29 18:21:49,083 INFO L168 Benchmark]: Boogie Procedure Inliner took 43.31 ms. Allocated memory is still 73.4 MB. Free memory was 56.4 MB in the beginning and 55.0 MB in the end (delta: 1.4 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-29 18:21:49,085 INFO L168 Benchmark]: Boogie Preprocessor took 24.26 ms. Allocated memory is still 73.4 MB. Free memory was 55.0 MB in the beginning and 53.8 MB in the end (delta: 1.2 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-29 18:21:49,087 INFO L168 Benchmark]: RCFGBuilder took 537.55 ms. Allocated memory is still 73.4 MB. Free memory was 53.8 MB in the beginning and 43.7 MB in the end (delta: 10.2 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2020-11-29 18:21:49,089 INFO L168 Benchmark]: TraceAbstraction took 616.41 ms. Allocated memory is still 73.4 MB. Free memory was 43.1 MB in the beginning and 51.5 MB in the end (delta: -8.4 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-29 18:21:49,090 INFO L168 Benchmark]: Witness Printer took 74.95 ms. Allocated memory is still 73.4 MB. Free memory was 51.5 MB in the beginning and 49.8 MB in the end (delta: 1.8 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-29 18:21:49,095 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.32 ms. Allocated memory is still 54.5 MB. Free memory was 35.5 MB in the beginning and 35.4 MB in the end (delta: 73.4 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 362.46 ms. Allocated memory is still 73.4 MB. Free memory was 51.4 MB in the beginning and 56.4 MB in the end (delta: -5.0 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 43.31 ms. Allocated memory is still 73.4 MB. Free memory was 56.4 MB in the beginning and 55.0 MB in the end (delta: 1.4 MB). There was no memory consumed. Max. memory is 16.1 GB. * Boogie Preprocessor took 24.26 ms. Allocated memory is still 73.4 MB. Free memory was 55.0 MB in the beginning and 53.8 MB in the end (delta: 1.2 MB). There was no memory consumed. Max. memory is 16.1 GB. * RCFGBuilder took 537.55 ms. Allocated memory is still 73.4 MB. Free memory was 53.8 MB in the beginning and 43.7 MB in the end (delta: 10.2 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * TraceAbstraction took 616.41 ms. Allocated memory is still 73.4 MB. Free memory was 43.1 MB in the beginning and 51.5 MB in the end (delta: -8.4 MB). There was no memory consumed. Max. memory is 16.1 GB. * Witness Printer took 74.95 ms. Allocated memory is still 73.4 MB. Free memory was 51.5 MB in the beginning and 49.8 MB in the end (delta: 1.8 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: [L12] double x; [L13] x = __VERIFIER_nondet_double() [L8] COND TRUE !(cond) [L3] __assert_fail("0", "nan_double.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...