./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/float-benchs/nan_double_range.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version e943c265 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ed338fb-983b-4963-a155-a5f651218fea/bin/uautomizer-j4sWxH34Be/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ed338fb-983b-4963-a155-a5f651218fea/bin/uautomizer-j4sWxH34Be/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ed338fb-983b-4963-a155-a5f651218fea/bin/uautomizer-j4sWxH34Be/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ed338fb-983b-4963-a155-a5f651218fea/bin/uautomizer-j4sWxH34Be/config/AutomizerReach.xml -i ../../sv-benchmarks/c/float-benchs/nan_double_range.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ed338fb-983b-4963-a155-a5f651218fea/bin/uautomizer-j4sWxH34Be/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ed338fb-983b-4963-a155-a5f651218fea/bin/uautomizer-j4sWxH34Be --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 797690fe71841b0a44bd1fd32f2345404ce21c41a044ac3f72f0df27db5c2176 ........................................................................................................................................................................................................................................ Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ed338fb-983b-4963-a155-a5f651218fea/bin/uautomizer-j4sWxH34Be/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ed338fb-983b-4963-a155-a5f651218fea/bin/uautomizer-j4sWxH34Be/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ed338fb-983b-4963-a155-a5f651218fea/bin/uautomizer-j4sWxH34Be/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ed338fb-983b-4963-a155-a5f651218fea/bin/uautomizer-j4sWxH34Be/config/AutomizerReach.xml -i ../../sv-benchmarks/c/float-benchs/nan_double_range.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ed338fb-983b-4963-a155-a5f651218fea/bin/uautomizer-j4sWxH34Be/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ed338fb-983b-4963-a155-a5f651218fea/bin/uautomizer-j4sWxH34Be --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 797690fe71841b0a44bd1fd32f2345404ce21c41a044ac3f72f0df27db5c2176 ............................................................................................................................................................................................................................................................................................ Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.1-dev-e943c26 [2021-10-21 20:10:54,382 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-21 20:10:54,385 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-21 20:10:54,418 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-21 20:10:54,419 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-21 20:10:54,420 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-21 20:10:54,422 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-21 20:10:54,424 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-21 20:10:54,426 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-21 20:10:54,428 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-21 20:10:54,429 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-21 20:10:54,430 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-21 20:10:54,431 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-21 20:10:54,432 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-21 20:10:54,434 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-21 20:10:54,436 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-21 20:10:54,437 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-21 20:10:54,438 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-21 20:10:54,440 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-21 20:10:54,442 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-21 20:10:54,444 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-21 20:10:54,451 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-21 20:10:54,452 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-21 20:10:54,453 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-21 20:10:54,457 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-21 20:10:54,457 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-21 20:10:54,458 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-21 20:10:54,459 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-21 20:10:54,459 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-21 20:10:54,460 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-21 20:10:54,461 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-21 20:10:54,462 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-21 20:10:54,463 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-21 20:10:54,464 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-21 20:10:54,465 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-21 20:10:54,465 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-21 20:10:54,471 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-21 20:10:54,472 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-21 20:10:54,472 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-21 20:10:54,473 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-21 20:10:54,474 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-21 20:10:54,475 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ed338fb-983b-4963-a155-a5f651218fea/bin/uautomizer-j4sWxH34Be/config/svcomp-Reach-32bit-Automizer_Default.epf [2021-10-21 20:10:54,522 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-21 20:10:54,522 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-21 20:10:54,535 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-10-21 20:10:54,535 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-10-21 20:10:54,536 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-21 20:10:54,537 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-21 20:10:54,537 INFO L138 SettingsManager]: * Use SBE=true [2021-10-21 20:10:54,537 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-21 20:10:54,538 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-21 20:10:54,538 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-21 20:10:54,538 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-21 20:10:54,538 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-21 20:10:54,538 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-21 20:10:54,539 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-21 20:10:54,539 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-21 20:10:54,539 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-21 20:10:54,539 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-21 20:10:54,540 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-21 20:10:54,540 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-21 20:10:54,540 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-21 20:10:54,540 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-21 20:10:54,541 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-21 20:10:54,541 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-21 20:10:54,541 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-21 20:10:54,541 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-21 20:10:54,542 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-21 20:10:54,542 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-10-21 20:10:54,542 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-10-21 20:10:54,542 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-10-21 20:10:54,543 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-10-21 20:10:54,543 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-21 20:10:54,543 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-21 20:10:54,543 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_worker_vcloud-master_on_vcloud-master/run_dir_3ed338fb-983b-4963-a155-a5f651218fea/bin/uautomizer-j4sWxH34Be/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ed338fb-983b-4963-a155-a5f651218fea/bin/uautomizer-j4sWxH34Be Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 797690fe71841b0a44bd1fd32f2345404ce21c41a044ac3f72f0df27db5c2176 [2021-10-21 20:10:54,836 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-21 20:10:54,861 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-21 20:10:54,864 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-21 20:10:54,865 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-21 20:10:54,866 INFO L275 PluginConnector]: CDTParser initialized [2021-10-21 20:10:54,867 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ed338fb-983b-4963-a155-a5f651218fea/bin/uautomizer-j4sWxH34Be/../../sv-benchmarks/c/float-benchs/nan_double_range.c [2021-10-21 20:10:54,940 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ed338fb-983b-4963-a155-a5f651218fea/bin/uautomizer-j4sWxH34Be/data/1d4f283fb/037c2491bb5a4e5e84f35b7378d71f24/FLAG269693030 [2021-10-21 20:10:55,449 INFO L306 CDTParser]: Found 1 translation units. [2021-10-21 20:10:55,450 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ed338fb-983b-4963-a155-a5f651218fea/sv-benchmarks/c/float-benchs/nan_double_range.c [2021-10-21 20:10:55,457 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ed338fb-983b-4963-a155-a5f651218fea/bin/uautomizer-j4sWxH34Be/data/1d4f283fb/037c2491bb5a4e5e84f35b7378d71f24/FLAG269693030 [2021-10-21 20:10:55,828 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ed338fb-983b-4963-a155-a5f651218fea/bin/uautomizer-j4sWxH34Be/data/1d4f283fb/037c2491bb5a4e5e84f35b7378d71f24 [2021-10-21 20:10:55,830 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-21 20:10:55,832 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-21 20:10:55,833 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-21 20:10:55,833 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-21 20:10:55,838 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-21 20:10:55,839 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.10 08:10:55" (1/1) ... [2021-10-21 20:10:55,840 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@55233468 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 08:10:55, skipping insertion in model container [2021-10-21 20:10:55,840 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.10 08:10:55" (1/1) ... [2021-10-21 20:10:55,848 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-21 20:10:55,865 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-21 20:10:56,040 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ed338fb-983b-4963-a155-a5f651218fea/sv-benchmarks/c/float-benchs/nan_double_range.c[422,435] [2021-10-21 20:10:56,056 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-21 20:10:56,066 INFO L203 MainTranslator]: Completed pre-run [2021-10-21 20:10:56,077 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ed338fb-983b-4963-a155-a5f651218fea/sv-benchmarks/c/float-benchs/nan_double_range.c[422,435] [2021-10-21 20:10:56,079 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-21 20:10:56,091 INFO L208 MainTranslator]: Completed translation [2021-10-21 20:10:56,092 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 08:10:56 WrapperNode [2021-10-21 20:10:56,092 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-21 20:10:56,093 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-21 20:10:56,093 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-21 20:10:56,093 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-21 20:10:56,099 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 08:10:56" (1/1) ... [2021-10-21 20:10:56,106 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 08:10:56" (1/1) ... [2021-10-21 20:10:56,123 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-21 20:10:56,124 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-21 20:10:56,124 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-21 20:10:56,125 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-21 20:10:56,133 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 08:10:56" (1/1) ... [2021-10-21 20:10:56,133 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 08:10:56" (1/1) ... [2021-10-21 20:10:56,135 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 08:10:56" (1/1) ... [2021-10-21 20:10:56,135 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 08:10:56" (1/1) ... [2021-10-21 20:10:56,139 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 08:10:56" (1/1) ... [2021-10-21 20:10:56,141 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 08:10:56" (1/1) ... [2021-10-21 20:10:56,142 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 08:10:56" (1/1) ... [2021-10-21 20:10:56,144 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-21 20:10:56,145 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-21 20:10:56,145 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-21 20:10:56,145 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-21 20:10:56,147 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 08:10:56" (1/1) ... [2021-10-21 20:10:56,155 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-21 20:10:56,167 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ed338fb-983b-4963-a155-a5f651218fea/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 20:10:56,204 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ed338fb-983b-4963-a155-a5f651218fea/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-10-21 20:10:56,237 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ed338fb-983b-4963-a155-a5f651218fea/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-10-21 20:10:56,260 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-21 20:10:56,261 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-21 20:10:56,261 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-10-21 20:10:56,261 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-21 20:10:56,446 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-21 20:10:56,447 INFO L299 CfgBuilder]: Removed 6 assume(true) statements. [2021-10-21 20:10:56,449 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.10 08:10:56 BoogieIcfgContainer [2021-10-21 20:10:56,449 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-21 20:10:56,451 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-21 20:10:56,451 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-21 20:10:56,455 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-21 20:10:56,455 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.10 08:10:55" (1/3) ... [2021-10-21 20:10:56,456 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@543e5f03 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.10 08:10:56, skipping insertion in model container [2021-10-21 20:10:56,457 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 08:10:56" (2/3) ... [2021-10-21 20:10:56,457 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@543e5f03 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.10 08:10:56, skipping insertion in model container [2021-10-21 20:10:56,457 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.10 08:10:56" (3/3) ... [2021-10-21 20:10:56,459 INFO L111 eAbstractionObserver]: Analyzing ICFG nan_double_range.c [2021-10-21 20:10:56,465 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-21 20:10:56,465 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-10-21 20:10:56,516 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-10-21 20:10:56,522 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-10-21 20:10:56,523 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-10-21 20:10:56,537 INFO L276 IsEmpty]: Start isEmpty. Operand has 10 states, 8 states have (on average 1.375) internal successors, (11), 9 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 20:10:56,542 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2021-10-21 20:10:56,542 INFO L504 BasicCegarLoop]: Found error trace [2021-10-21 20:10:56,543 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2021-10-21 20:10:56,544 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-21 20:10:56,549 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 20:10:56,550 INFO L82 PathProgramCache]: Analyzing trace with hash 28693796, now seen corresponding path program 1 times [2021-10-21 20:10:56,559 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 20:10:56,560 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [316681065] [2021-10-21 20:10:56,560 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 20:10:56,561 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 20:10:56,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 20:10:56,679 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-21 20:10:56,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 20:10:56,723 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-21 20:10:56,725 INFO L626 BasicCegarLoop]: Counterexample is feasible [2021-10-21 20:10:56,727 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION [2021-10-21 20:10:56,729 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-10-21 20:10:56,736 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-10-21 20:10:56,753 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.10 08:10:56 BoogieIcfgContainer [2021-10-21 20:10:56,753 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-10-21 20:10:56,754 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-21 20:10:56,755 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-21 20:10:56,755 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-21 20:10:56,755 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.10 08:10:56" (3/4) ... [2021-10-21 20:10:56,759 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-10-21 20:10:56,759 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-21 20:10:56,761 INFO L168 Benchmark]: Toolchain (without parser) took 928.50 ms. Allocated memory was 81.8 MB in the beginning and 109.1 MB in the end (delta: 27.3 MB). Free memory was 55.5 MB in the beginning and 83.2 MB in the end (delta: -27.7 MB). Peak memory consumption was 443.3 kB. Max. memory is 16.1 GB. [2021-10-21 20:10:56,762 INFO L168 Benchmark]: CDTParser took 0.28 ms. Allocated memory is still 81.8 MB. Free memory was 54.8 MB in the beginning and 54.8 MB in the end (delta: 40.5 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-21 20:10:56,763 INFO L168 Benchmark]: CACSL2BoogieTranslator took 259.41 ms. Allocated memory is still 81.8 MB. Free memory was 55.4 MB in the beginning and 57.7 MB in the end (delta: -2.3 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2021-10-21 20:10:56,764 INFO L168 Benchmark]: Boogie Procedure Inliner took 30.71 ms. Allocated memory is still 81.8 MB. Free memory was 57.7 MB in the beginning and 56.3 MB in the end (delta: 1.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-21 20:10:56,765 INFO L168 Benchmark]: Boogie Preprocessor took 20.14 ms. Allocated memory is still 81.8 MB. Free memory was 56.3 MB in the beginning and 55.3 MB in the end (delta: 939.2 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-21 20:10:56,765 INFO L168 Benchmark]: RCFGBuilder took 304.41 ms. Allocated memory is still 81.8 MB. Free memory was 55.3 MB in the beginning and 46.7 MB in the end (delta: 8.6 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2021-10-21 20:10:56,766 INFO L168 Benchmark]: TraceAbstraction took 302.35 ms. Allocated memory was 81.8 MB in the beginning and 109.1 MB in the end (delta: 27.3 MB). Free memory was 46.3 MB in the beginning and 83.8 MB in the end (delta: -37.5 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-21 20:10:56,767 INFO L168 Benchmark]: Witness Printer took 4.82 ms. Allocated memory is still 109.1 MB. Free memory was 83.8 MB in the beginning and 83.2 MB in the end (delta: 563.2 kB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-21 20:10:56,771 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.28 ms. Allocated memory is still 81.8 MB. Free memory was 54.8 MB in the beginning and 54.8 MB in the end (delta: 40.5 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 259.41 ms. Allocated memory is still 81.8 MB. Free memory was 55.4 MB in the beginning and 57.7 MB in the end (delta: -2.3 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 30.71 ms. Allocated memory is still 81.8 MB. Free memory was 57.7 MB in the beginning and 56.3 MB in the end (delta: 1.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 20.14 ms. Allocated memory is still 81.8 MB. Free memory was 56.3 MB in the beginning and 55.3 MB in the end (delta: 939.2 kB). There was no memory consumed. Max. memory is 16.1 GB. * RCFGBuilder took 304.41 ms. Allocated memory is still 81.8 MB. Free memory was 55.3 MB in the beginning and 46.7 MB in the end (delta: 8.6 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * TraceAbstraction took 302.35 ms. Allocated memory was 81.8 MB in the beginning and 109.1 MB in the end (delta: 27.3 MB). Free memory was 46.3 MB in the beginning and 83.8 MB in the end (delta: -37.5 MB). There was no memory consumed. Max. memory is 16.1 GB. * Witness Printer took 4.82 ms. Allocated memory is still 109.1 MB. Free memory was 83.8 MB in the beginning and 83.2 MB in the end (delta: 563.2 kB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0ms ErrorAutomatonConstructionTimeTotal, 0.0ms FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0ms ErrorAutomatonConstructionTimeAvg, 0.0ms ErrorAutomatonDifferenceTimeAvg, 0.0ms ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 8]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: overapproximation of someBinaryDOUBLEComparisonOperation at line 15. Possible FailurePath: [L12] double x; [L13] x = __VERIFIER_nondet_double() [L15] COND TRUE x >= -1e307 && x <= 1e307 [L8] COND TRUE !(cond) [L8] reach_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 10 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 220.9ms, OverallIterations: 1, TraceHistogramMax: 1, EmptinessCheckTime: 8.9ms, AutomataDifference: 0.0ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 10.1ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: No data available, PredicateUnifierStatistics: No data available, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=10occurred in iteration=0, InterpolantAutomatonStates: 0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 6.1ms SsaConstructionTime, 50.2ms SatisfiabilityAnalysisTime, 0.0ms InterpolantComputationTime, 5 NumberOfCodeBlocks, 5 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2021-10-21 20:10:56,821 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ed338fb-983b-4963-a155-a5f651218fea/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... ### Bit-precise run ### This is Ultimate 0.2.1-dev-e943c26 [2021-10-21 20:10:59,286 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-21 20:10:59,288 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-21 20:10:59,333 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-21 20:10:59,334 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-21 20:10:59,338 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-21 20:10:59,340 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-21 20:10:59,347 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-21 20:10:59,350 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-21 20:10:59,356 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-21 20:10:59,357 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-21 20:10:59,359 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-21 20:10:59,360 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-21 20:10:59,363 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-21 20:10:59,366 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-21 20:10:59,370 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-21 20:10:59,372 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-21 20:10:59,373 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-21 20:10:59,376 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-21 20:10:59,384 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-21 20:10:59,386 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-21 20:10:59,388 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-21 20:10:59,390 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-21 20:10:59,393 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-21 20:10:59,402 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-21 20:10:59,403 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-21 20:10:59,403 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-21 20:10:59,405 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-21 20:10:59,406 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-21 20:10:59,407 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-21 20:10:59,408 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-21 20:10:59,409 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-21 20:10:59,411 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-21 20:10:59,412 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-21 20:10:59,414 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-21 20:10:59,414 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-21 20:10:59,416 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-21 20:10:59,416 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-21 20:10:59,416 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-21 20:10:59,418 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-21 20:10:59,419 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-21 20:10:59,420 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ed338fb-983b-4963-a155-a5f651218fea/bin/uautomizer-j4sWxH34Be/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2021-10-21 20:10:59,465 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-21 20:10:59,465 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-21 20:10:59,466 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-10-21 20:10:59,466 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-10-21 20:10:59,469 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-21 20:10:59,469 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-21 20:10:59,469 INFO L138 SettingsManager]: * Use SBE=true [2021-10-21 20:10:59,470 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-21 20:10:59,470 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-21 20:10:59,470 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-21 20:10:59,471 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-21 20:10:59,472 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-21 20:10:59,472 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-21 20:10:59,472 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-21 20:10:59,473 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-10-21 20:10:59,473 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-10-21 20:10:59,473 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-21 20:10:59,474 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-21 20:10:59,474 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-21 20:10:59,474 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-21 20:10:59,475 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-21 20:10:59,475 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-21 20:10:59,475 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-21 20:10:59,475 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-21 20:10:59,476 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-21 20:10:59,476 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-21 20:10:59,477 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-21 20:10:59,477 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2021-10-21 20:10:59,477 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-10-21 20:10:59,477 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-10-21 20:10:59,478 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-10-21 20:10:59,478 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-21 20:10:59,478 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-21 20:10:59,479 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-10-21 20:10:59,479 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_worker_vcloud-master_on_vcloud-master/run_dir_3ed338fb-983b-4963-a155-a5f651218fea/bin/uautomizer-j4sWxH34Be/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ed338fb-983b-4963-a155-a5f651218fea/bin/uautomizer-j4sWxH34Be Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 797690fe71841b0a44bd1fd32f2345404ce21c41a044ac3f72f0df27db5c2176 [2021-10-21 20:10:59,871 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-21 20:10:59,916 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-21 20:10:59,918 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-21 20:10:59,920 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-21 20:10:59,923 INFO L275 PluginConnector]: CDTParser initialized [2021-10-21 20:10:59,924 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ed338fb-983b-4963-a155-a5f651218fea/bin/uautomizer-j4sWxH34Be/../../sv-benchmarks/c/float-benchs/nan_double_range.c [2021-10-21 20:11:00,014 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ed338fb-983b-4963-a155-a5f651218fea/bin/uautomizer-j4sWxH34Be/data/442a2b670/9e7e030758bc460e8cccb2b4aae07c4e/FLAG70f288f1b [2021-10-21 20:11:00,503 INFO L306 CDTParser]: Found 1 translation units. [2021-10-21 20:11:00,504 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ed338fb-983b-4963-a155-a5f651218fea/sv-benchmarks/c/float-benchs/nan_double_range.c [2021-10-21 20:11:00,510 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ed338fb-983b-4963-a155-a5f651218fea/bin/uautomizer-j4sWxH34Be/data/442a2b670/9e7e030758bc460e8cccb2b4aae07c4e/FLAG70f288f1b [2021-10-21 20:11:00,896 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ed338fb-983b-4963-a155-a5f651218fea/bin/uautomizer-j4sWxH34Be/data/442a2b670/9e7e030758bc460e8cccb2b4aae07c4e [2021-10-21 20:11:00,904 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-21 20:11:00,907 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-21 20:11:00,910 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-21 20:11:00,911 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-21 20:11:00,915 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-21 20:11:00,916 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.10 08:11:00" (1/1) ... [2021-10-21 20:11:00,919 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@38150a6d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 08:11:00, skipping insertion in model container [2021-10-21 20:11:00,919 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.10 08:11:00" (1/1) ... [2021-10-21 20:11:00,928 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-21 20:11:00,944 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-21 20:11:01,114 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ed338fb-983b-4963-a155-a5f651218fea/sv-benchmarks/c/float-benchs/nan_double_range.c[422,435] [2021-10-21 20:11:01,122 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-21 20:11:01,136 INFO L203 MainTranslator]: Completed pre-run [2021-10-21 20:11:01,149 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ed338fb-983b-4963-a155-a5f651218fea/sv-benchmarks/c/float-benchs/nan_double_range.c[422,435] [2021-10-21 20:11:01,151 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-21 20:11:01,167 INFO L208 MainTranslator]: Completed translation [2021-10-21 20:11:01,167 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 08:11:01 WrapperNode [2021-10-21 20:11:01,168 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-21 20:11:01,169 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-21 20:11:01,169 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-21 20:11:01,169 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-21 20:11:01,201 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 08:11:01" (1/1) ... [2021-10-21 20:11:01,232 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 08:11:01" (1/1) ... [2021-10-21 20:11:01,249 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-21 20:11:01,250 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-21 20:11:01,250 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-21 20:11:01,250 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-21 20:11:01,258 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 08:11:01" (1/1) ... [2021-10-21 20:11:01,259 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 08:11:01" (1/1) ... [2021-10-21 20:11:01,261 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 08:11:01" (1/1) ... [2021-10-21 20:11:01,261 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 08:11:01" (1/1) ... [2021-10-21 20:11:01,267 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 08:11:01" (1/1) ... [2021-10-21 20:11:01,269 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 08:11:01" (1/1) ... [2021-10-21 20:11:01,271 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 08:11:01" (1/1) ... [2021-10-21 20:11:01,273 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-21 20:11:01,274 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-21 20:11:01,274 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-21 20:11:01,275 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-21 20:11:01,275 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 08:11:01" (1/1) ... [2021-10-21 20:11:01,282 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-21 20:11:01,295 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ed338fb-983b-4963-a155-a5f651218fea/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 20:11:01,307 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ed338fb-983b-4963-a155-a5f651218fea/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-10-21 20:11:01,326 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ed338fb-983b-4963-a155-a5f651218fea/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-10-21 20:11:01,367 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-10-21 20:11:01,367 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-21 20:11:01,367 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-21 20:11:01,367 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-21 20:11:01,651 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-21 20:11:01,651 INFO L299 CfgBuilder]: Removed 6 assume(true) statements. [2021-10-21 20:11:01,653 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.10 08:11:01 BoogieIcfgContainer [2021-10-21 20:11:01,653 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-21 20:11:01,655 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-21 20:11:01,655 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-21 20:11:01,658 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-21 20:11:01,658 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.10 08:11:00" (1/3) ... [2021-10-21 20:11:01,659 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@37a601b7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.10 08:11:01, skipping insertion in model container [2021-10-21 20:11:01,659 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 08:11:01" (2/3) ... [2021-10-21 20:11:01,660 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@37a601b7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.10 08:11:01, skipping insertion in model container [2021-10-21 20:11:01,660 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.10 08:11:01" (3/3) ... [2021-10-21 20:11:01,661 INFO L111 eAbstractionObserver]: Analyzing ICFG nan_double_range.c [2021-10-21 20:11:01,669 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-21 20:11:01,669 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-10-21 20:11:01,734 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-10-21 20:11:01,747 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-10-21 20:11:01,747 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-10-21 20:11:01,767 INFO L276 IsEmpty]: Start isEmpty. Operand has 10 states, 8 states have (on average 1.375) internal successors, (11), 9 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 20:11:01,772 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2021-10-21 20:11:01,773 INFO L504 BasicCegarLoop]: Found error trace [2021-10-21 20:11:01,774 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2021-10-21 20:11:01,774 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-21 20:11:01,784 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 20:11:01,785 INFO L82 PathProgramCache]: Analyzing trace with hash 28693796, now seen corresponding path program 1 times [2021-10-21 20:11:01,799 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-21 20:11:01,800 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [922228323] [2021-10-21 20:11:01,800 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 20:11:01,801 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-21 20:11:01,801 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ed338fb-983b-4963-a155-a5f651218fea/bin/uautomizer-j4sWxH34Be/mathsat [2021-10-21 20:11:01,805 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ed338fb-983b-4963-a155-a5f651218fea/bin/uautomizer-j4sWxH34Be/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-21 20:11:01,815 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ed338fb-983b-4963-a155-a5f651218fea/bin/uautomizer-j4sWxH34Be/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-10-21 20:11:01,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 20:11:01,898 INFO L263 TraceCheckSpWp]: Trace formula consists of 29 conjuncts, 4 conjunts are in the unsatisfiable core [2021-10-21 20:11:01,903 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-21 20:11:02,075 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 20:11:02,076 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-21 20:11:02,122 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 20:11:02,123 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-21 20:11:02,123 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [922228323] [2021-10-21 20:11:02,124 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [922228323] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-21 20:11:02,124 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-21 20:11:02,125 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-10-21 20:11:02,126 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [483749867] [2021-10-21 20:11:02,131 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-21 20:11:02,131 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-21 20:11:02,144 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-21 20:11:02,144 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-21 20:11:02,147 INFO L87 Difference]: Start difference. First operand has 10 states, 8 states have (on average 1.375) internal successors, (11), 9 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 4 states, 4 states have (on average 1.75) internal successors, (7), 4 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 20:11:02,189 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-21 20:11:02,190 INFO L93 Difference]: Finished difference Result 18 states and 17 transitions. [2021-10-21 20:11:02,190 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-21 20:11:02,192 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 1.75) internal successors, (7), 4 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 5 [2021-10-21 20:11:02,192 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-21 20:11:02,201 INFO L225 Difference]: With dead ends: 18 [2021-10-21 20:11:02,201 INFO L226 Difference]: Without dead ends: 0 [2021-10-21 20:11:02,204 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 11.9ms TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-21 20:11:02,220 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-10-21 20:11:02,226 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-10-21 20:11:02,227 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 20:11:02,227 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-10-21 20:11:02,228 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 5 [2021-10-21 20:11:02,229 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-21 20:11:02,229 INFO L470 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-10-21 20:11:02,229 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 1.75) internal successors, (7), 4 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 20:11:02,230 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-10-21 20:11:02,230 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-10-21 20:11:02,232 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION [2021-10-21 20:11:02,246 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ed338fb-983b-4963-a155-a5f651218fea/bin/uautomizer-j4sWxH34Be/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2021-10-21 20:11:02,445 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ed338fb-983b-4963-a155-a5f651218fea/bin/uautomizer-j4sWxH34Be/mathsat -unsat_core_generation=3 [2021-10-21 20:11:02,447 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2021-10-21 20:11:02,450 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-21 20:11:02,479 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-21 20:11:02,485 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2021-10-21 20:11:02,485 INFO L857 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2021-10-21 20:11:02,485 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2021-10-21 20:11:02,485 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2021-10-21 20:11:02,486 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 8) no Hoare annotation was computed. [2021-10-21 20:11:02,486 INFO L860 garLoopResultBuilder]: At program point L18(lines 10 19) the Hoare annotation is: true [2021-10-21 20:11:02,486 INFO L857 garLoopResultBuilder]: For program point L15(lines 15 17) no Hoare annotation was computed. [2021-10-21 20:11:02,487 INFO L860 garLoopResultBuilder]: At program point L15-1(lines 15 17) the Hoare annotation is: true [2021-10-21 20:11:02,487 INFO L857 garLoopResultBuilder]: For program point L8(line 8) no Hoare annotation was computed. [2021-10-21 20:11:02,487 INFO L857 garLoopResultBuilder]: For program point L8-1(line 8) no Hoare annotation was computed. [2021-10-21 20:11:02,492 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-10-21 20:11:02,497 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.10 08:11:02 BoogieIcfgContainer [2021-10-21 20:11:02,497 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-10-21 20:11:02,498 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-21 20:11:02,499 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-21 20:11:02,499 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-21 20:11:02,499 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.10 08:11:01" (3/4) ... [2021-10-21 20:11:02,503 INFO L137 WitnessPrinter]: Generating witness for correct program [2021-10-21 20:11:02,515 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 8 nodes and edges [2021-10-21 20:11:02,515 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2021-10-21 20:11:02,515 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2021-10-21 20:11:02,516 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-10-21 20:11:02,556 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ed338fb-983b-4963-a155-a5f651218fea/bin/uautomizer-j4sWxH34Be/witness.graphml [2021-10-21 20:11:02,556 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-21 20:11:02,558 INFO L168 Benchmark]: Toolchain (without parser) took 1650.47 ms. Allocated memory was 65.0 MB in the beginning and 79.7 MB in the end (delta: 14.7 MB). Free memory was 44.5 MB in the beginning and 60.9 MB in the end (delta: -16.4 MB). Peak memory consumption was 19.7 MB. Max. memory is 16.1 GB. [2021-10-21 20:11:02,559 INFO L168 Benchmark]: CDTParser took 0.29 ms. Allocated memory is still 65.0 MB. Free memory is still 45.9 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-21 20:11:02,559 INFO L168 Benchmark]: CACSL2BoogieTranslator took 257.62 ms. Allocated memory is still 65.0 MB. Free memory was 44.3 MB in the beginning and 34.6 MB in the end (delta: 9.7 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2021-10-21 20:11:02,560 INFO L168 Benchmark]: Boogie Procedure Inliner took 80.65 ms. Allocated memory is still 65.0 MB. Free memory was 34.6 MB in the beginning and 47.6 MB in the end (delta: -13.0 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2021-10-21 20:11:02,561 INFO L168 Benchmark]: Boogie Preprocessor took 23.50 ms. Allocated memory is still 65.0 MB. Free memory was 47.6 MB in the beginning and 46.5 MB in the end (delta: 1.1 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-21 20:11:02,561 INFO L168 Benchmark]: RCFGBuilder took 379.13 ms. Allocated memory is still 65.0 MB. Free memory was 46.5 MB in the beginning and 37.5 MB in the end (delta: 9.0 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2021-10-21 20:11:02,562 INFO L168 Benchmark]: TraceAbstraction took 842.35 ms. Allocated memory is still 65.0 MB. Free memory was 37.0 MB in the beginning and 30.3 MB in the end (delta: 6.7 MB). Peak memory consumption was 9.8 MB. Max. memory is 16.1 GB. [2021-10-21 20:11:02,563 INFO L168 Benchmark]: Witness Printer took 58.06 ms. Allocated memory was 65.0 MB in the beginning and 79.7 MB in the end (delta: 14.7 MB). Free memory was 30.0 MB in the beginning and 60.9 MB in the end (delta: -30.8 MB). Peak memory consumption was 4.7 MB. Max. memory is 16.1 GB. [2021-10-21 20:11:02,566 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.29 ms. Allocated memory is still 65.0 MB. Free memory is still 45.9 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 257.62 ms. Allocated memory is still 65.0 MB. Free memory was 44.3 MB in the beginning and 34.6 MB in the end (delta: 9.7 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 80.65 ms. Allocated memory is still 65.0 MB. Free memory was 34.6 MB in the beginning and 47.6 MB in the end (delta: -13.0 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 23.50 ms. Allocated memory is still 65.0 MB. Free memory was 47.6 MB in the beginning and 46.5 MB in the end (delta: 1.1 MB). There was no memory consumed. Max. memory is 16.1 GB. * RCFGBuilder took 379.13 ms. Allocated memory is still 65.0 MB. Free memory was 46.5 MB in the beginning and 37.5 MB in the end (delta: 9.0 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * TraceAbstraction took 842.35 ms. Allocated memory is still 65.0 MB. Free memory was 37.0 MB in the beginning and 30.3 MB in the end (delta: 6.7 MB). Peak memory consumption was 9.8 MB. Max. memory is 16.1 GB. * Witness Printer took 58.06 ms. Allocated memory was 65.0 MB in the beginning and 79.7 MB in the end (delta: 14.7 MB). Free memory was 30.0 MB in the beginning and 60.9 MB in the end (delta: -30.8 MB). Peak memory consumption was 4.7 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0ms ErrorAutomatonConstructionTimeTotal, 0.0ms FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0ms ErrorAutomatonConstructionTimeAvg, 0.0ms ErrorAutomatonDifferenceTimeAvg, 0.0ms ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 8]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 10 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 760.6ms, OverallIterations: 1, TraceHistogramMax: 1, EmptinessCheckTime: 11.8ms, AutomataDifference: 71.5ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 38.1ms, InitialAbstractionConstructionTime: 13.2ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 10 SDtfs, 8 SDslu, 6 SDs, 0 SdLazy, 1 SolverSat, 0 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 16.4ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 8 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 11.9ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=10occurred in iteration=0, InterpolantAutomatonStates: 3, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: 10.7ms AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0ms HoareAnnotationTime, 2 LocationsWithAnnotation, 2 PreInvPairs, 6 NumberOfFragments, 2 HoareAnnotationTreeSize, 2 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 30.7ms HoareSimplificationTime, 2 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 2.2ms HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 11.2ms SsaConstructionTime, 30.4ms SatisfiabilityAnalysisTime, 226.6ms InterpolantComputationTime, 5 NumberOfCodeBlocks, 5 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 8 ConstructedInterpolants, 0 QuantifiedInterpolants, 13 SizeOfPredicates, 5 NumberOfNonLiveVariables, 29 ConjunctsInSsa, 4 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 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 - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 10]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 15]: Loop Invariant Derived loop invariant: 1 RESULT: Ultimate proved your program to be correct! [2021-10-21 20:11:02,615 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ed338fb-983b-4963-a155-a5f651218fea/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...