./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 53f42b1a Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06f314db-eb2c-44c4-bbfd-afba6db4a8f7/bin/uautomizer-DQz5hQGWxF/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06f314db-eb2c-44c4-bbfd-afba6db4a8f7/bin/uautomizer-DQz5hQGWxF/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06f314db-eb2c-44c4-bbfd-afba6db4a8f7/bin/uautomizer-DQz5hQGWxF/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06f314db-eb2c-44c4-bbfd-afba6db4a8f7/bin/uautomizer-DQz5hQGWxF/config/AutomizerReach.xml -i ../../sv-benchmarks/c/float-benchs/nan_double.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06f314db-eb2c-44c4-bbfd-afba6db4a8f7/bin/uautomizer-DQz5hQGWxF/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06f314db-eb2c-44c4-bbfd-afba6db4a8f7/bin/uautomizer-DQz5hQGWxF --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 a4232596288b496aee224c4b4f91c0d4dc8bab0d40c539eda179d1ef3a227da3 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-53f42b1 [2021-11-20 07:23:57,643 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-20 07:23:57,646 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-20 07:23:57,701 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-20 07:23:57,701 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-20 07:23:57,706 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-20 07:23:57,708 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-20 07:23:57,712 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-20 07:23:57,715 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-20 07:23:57,720 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-20 07:23:57,721 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-20 07:23:57,723 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-20 07:23:57,724 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-20 07:23:57,726 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-20 07:23:57,728 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-20 07:23:57,732 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-20 07:23:57,735 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-20 07:23:57,736 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-20 07:23:57,738 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-20 07:23:57,747 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-20 07:23:57,750 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-20 07:23:57,751 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-20 07:23:57,755 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-20 07:23:57,756 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-20 07:23:57,765 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-20 07:23:57,765 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-20 07:23:57,766 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-20 07:23:57,768 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-20 07:23:57,769 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-20 07:23:57,770 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-20 07:23:57,771 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-20 07:23:57,772 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-20 07:23:57,774 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-20 07:23:57,775 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-20 07:23:57,777 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-20 07:23:57,777 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-20 07:23:57,778 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-20 07:23:57,778 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-20 07:23:57,778 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-20 07:23:57,779 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-20 07:23:57,780 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-20 07:23:57,781 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06f314db-eb2c-44c4-bbfd-afba6db4a8f7/bin/uautomizer-DQz5hQGWxF/config/svcomp-Reach-32bit-Automizer_Default.epf [2021-11-20 07:23:57,823 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-20 07:23:57,823 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-20 07:23:57,824 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-20 07:23:57,824 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-20 07:23:57,832 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-20 07:23:57,832 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-20 07:23:57,833 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-20 07:23:57,834 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-20 07:23:57,834 INFO L138 SettingsManager]: * Use SBE=true [2021-11-20 07:23:57,834 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-20 07:23:57,835 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-20 07:23:57,836 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-20 07:23:57,836 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-20 07:23:57,836 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-20 07:23:57,836 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-20 07:23:57,837 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-20 07:23:57,837 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-20 07:23:57,837 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-20 07:23:57,837 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-20 07:23:57,837 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-20 07:23:57,838 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-20 07:23:57,838 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-20 07:23:57,838 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-20 07:23:57,838 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-20 07:23:57,839 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-20 07:23:57,839 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-20 07:23:57,839 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-20 07:23:57,839 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-20 07:23:57,840 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-11-20 07:23:57,842 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-20 07:23:57,842 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-11-20 07:23:57,842 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-11-20 07:23:57,843 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-20 07:23:57,843 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-20 07:23:57,843 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_06f314db-eb2c-44c4-bbfd-afba6db4a8f7/bin/uautomizer-DQz5hQGWxF/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06f314db-eb2c-44c4-bbfd-afba6db4a8f7/bin/uautomizer-DQz5hQGWxF Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> a4232596288b496aee224c4b4f91c0d4dc8bab0d40c539eda179d1ef3a227da3 [2021-11-20 07:23:58,130 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-20 07:23:58,154 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-20 07:23:58,157 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-20 07:23:58,158 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-20 07:23:58,159 INFO L275 PluginConnector]: CDTParser initialized [2021-11-20 07:23:58,161 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06f314db-eb2c-44c4-bbfd-afba6db4a8f7/bin/uautomizer-DQz5hQGWxF/../../sv-benchmarks/c/float-benchs/nan_double.c [2021-11-20 07:23:58,252 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06f314db-eb2c-44c4-bbfd-afba6db4a8f7/bin/uautomizer-DQz5hQGWxF/data/cc637982e/44c61c9591fe40c3b9f682575c94258d/FLAGecf14685a [2021-11-20 07:23:58,722 INFO L306 CDTParser]: Found 1 translation units. [2021-11-20 07:23:58,722 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06f314db-eb2c-44c4-bbfd-afba6db4a8f7/sv-benchmarks/c/float-benchs/nan_double.c [2021-11-20 07:23:58,733 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06f314db-eb2c-44c4-bbfd-afba6db4a8f7/bin/uautomizer-DQz5hQGWxF/data/cc637982e/44c61c9591fe40c3b9f682575c94258d/FLAGecf14685a [2021-11-20 07:23:59,094 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06f314db-eb2c-44c4-bbfd-afba6db4a8f7/bin/uautomizer-DQz5hQGWxF/data/cc637982e/44c61c9591fe40c3b9f682575c94258d [2021-11-20 07:23:59,096 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-20 07:23:59,098 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-20 07:23:59,100 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-20 07:23:59,100 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-20 07:23:59,104 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-20 07:23:59,104 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 07:23:59" (1/1) ... [2021-11-20 07:23:59,106 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@11f65363 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:23:59, skipping insertion in model container [2021-11-20 07:23:59,106 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 07:23:59" (1/1) ... [2021-11-20 07:23:59,113 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-20 07:23:59,125 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-20 07:23:59,297 WARN L230 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_06f314db-eb2c-44c4-bbfd-afba6db4a8f7/sv-benchmarks/c/float-benchs/nan_double.c[434,447] [2021-11-20 07:23:59,306 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-20 07:23:59,314 INFO L203 MainTranslator]: Completed pre-run [2021-11-20 07:23:59,327 WARN L230 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_06f314db-eb2c-44c4-bbfd-afba6db4a8f7/sv-benchmarks/c/float-benchs/nan_double.c[434,447] [2021-11-20 07:23:59,328 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-20 07:23:59,341 INFO L208 MainTranslator]: Completed translation [2021-11-20 07:23:59,341 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:23:59 WrapperNode [2021-11-20 07:23:59,341 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-20 07:23:59,343 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-20 07:23:59,343 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-20 07:23:59,343 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-20 07:23:59,350 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:23:59" (1/1) ... [2021-11-20 07:23:59,357 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:23:59" (1/1) ... [2021-11-20 07:23:59,372 INFO L137 Inliner]: procedures = 13, calls = 8, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 22 [2021-11-20 07:23:59,372 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-20 07:23:59,373 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-20 07:23:59,373 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-20 07:23:59,373 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-20 07:23:59,380 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:23:59" (1/1) ... [2021-11-20 07:23:59,380 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:23:59" (1/1) ... [2021-11-20 07:23:59,381 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:23:59" (1/1) ... [2021-11-20 07:23:59,381 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:23:59" (1/1) ... [2021-11-20 07:23:59,384 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:23:59" (1/1) ... [2021-11-20 07:23:59,386 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:23:59" (1/1) ... [2021-11-20 07:23:59,387 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:23:59" (1/1) ... [2021-11-20 07:23:59,388 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-20 07:23:59,389 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-20 07:23:59,389 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-20 07:23:59,389 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-20 07:23:59,390 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:23:59" (1/1) ... [2021-11-20 07:23:59,397 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-20 07:23:59,408 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06f314db-eb2c-44c4-bbfd-afba6db4a8f7/bin/uautomizer-DQz5hQGWxF/z3 [2021-11-20 07:23:59,424 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06f314db-eb2c-44c4-bbfd-afba6db4a8f7/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-20 07:23:59,439 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06f314db-eb2c-44c4-bbfd-afba6db4a8f7/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-20 07:23:59,467 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-20 07:23:59,467 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-20 07:23:59,467 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-20 07:23:59,468 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-20 07:23:59,525 INFO L236 CfgBuilder]: Building ICFG [2021-11-20 07:23:59,527 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-20 07:23:59,598 INFO L277 CfgBuilder]: Performing block encoding [2021-11-20 07:23:59,604 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-20 07:23:59,604 INFO L301 CfgBuilder]: Removed 0 assume(true) statements. [2021-11-20 07:23:59,606 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 07:23:59 BoogieIcfgContainer [2021-11-20 07:23:59,606 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-20 07:23:59,608 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-20 07:23:59,608 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-20 07:23:59,611 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-20 07:23:59,611 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.11 07:23:59" (1/3) ... [2021-11-20 07:23:59,612 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2e1baf6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 07:23:59, skipping insertion in model container [2021-11-20 07:23:59,612 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:23:59" (2/3) ... [2021-11-20 07:23:59,613 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2e1baf6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 07:23:59, skipping insertion in model container [2021-11-20 07:23:59,613 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 07:23:59" (3/3) ... [2021-11-20 07:23:59,614 INFO L111 eAbstractionObserver]: Analyzing ICFG nan_double.c [2021-11-20 07:23:59,622 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-20 07:23:59,626 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-11-20 07:23:59,674 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-20 07:23:59,682 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 [2021-11-20 07:23:59,686 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-11-20 07:23:59,700 INFO L276 IsEmpty]: Start isEmpty. Operand has 9 states, 7 states have (on average 1.2857142857142858) internal successors, (9), 8 states have internal predecessors, (9), 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) [2021-11-20 07:23:59,718 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2021-11-20 07:23:59,721 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 07:23:59,722 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2021-11-20 07:23:59,722 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-20 07:23:59,732 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 07:23:59,734 INFO L85 PathProgramCache]: Analyzing trace with hash 925605, now seen corresponding path program 1 times [2021-11-20 07:23:59,744 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 07:23:59,746 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [847155472] [2021-11-20 07:23:59,746 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 07:23:59,747 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 07:23:59,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-20 07:23:59,853 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-20 07:23:59,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-20 07:23:59,901 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-20 07:23:59,903 INFO L628 BasicCegarLoop]: Counterexample is feasible [2021-11-20 07:23:59,904 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2021-11-20 07:23:59,908 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-20 07:23:59,913 INFO L732 BasicCegarLoop]: Path program histogram: [1] [2021-11-20 07:23:59,916 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-11-20 07:23:59,938 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.11 07:23:59 BoogieIcfgContainer [2021-11-20 07:23:59,938 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-11-20 07:23:59,941 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-11-20 07:23:59,942 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-11-20 07:23:59,942 INFO L275 PluginConnector]: Witness Printer initialized [2021-11-20 07:23:59,943 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 07:23:59" (3/4) ... [2021-11-20 07:23:59,946 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-11-20 07:23:59,947 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-11-20 07:23:59,949 INFO L158 Benchmark]: Toolchain (without parser) took 849.75ms. Allocated memory is still 96.5MB. Free memory was 63.6MB in the beginning and 49.6MB in the end (delta: 14.1MB). Peak memory consumption was 11.7MB. Max. memory is 16.1GB. [2021-11-20 07:23:59,950 INFO L158 Benchmark]: CDTParser took 0.28ms. Allocated memory is still 96.5MB. Free memory was 50.5MB in the beginning and 50.5MB in the end (delta: 42.8kB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-20 07:23:59,951 INFO L158 Benchmark]: CACSL2BoogieTranslator took 241.99ms. Allocated memory is still 96.5MB. Free memory was 63.4MB in the beginning and 73.0MB in the end (delta: -9.5MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2021-11-20 07:23:59,952 INFO L158 Benchmark]: Boogie Procedure Inliner took 29.72ms. Allocated memory is still 96.5MB. Free memory was 73.0MB in the beginning and 71.5MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-20 07:23:59,953 INFO L158 Benchmark]: Boogie Preprocessor took 15.08ms. Allocated memory is still 96.5MB. Free memory was 71.5MB in the beginning and 70.9MB in the end (delta: 624.1kB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-20 07:23:59,958 INFO L158 Benchmark]: RCFGBuilder took 217.40ms. Allocated memory is still 96.5MB. Free memory was 70.5MB in the beginning and 62.5MB in the end (delta: 8.1MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2021-11-20 07:23:59,959 INFO L158 Benchmark]: TraceAbstraction took 330.59ms. Allocated memory is still 96.5MB. Free memory was 62.2MB in the beginning and 49.9MB in the end (delta: 12.3MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2021-11-20 07:23:59,961 INFO L158 Benchmark]: Witness Printer took 5.47ms. Allocated memory is still 96.5MB. Free memory was 49.9MB in the beginning and 49.6MB in the end (delta: 308.3kB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-20 07:23:59,970 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.28ms. Allocated memory is still 96.5MB. Free memory was 50.5MB in the beginning and 50.5MB in the end (delta: 42.8kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 241.99ms. Allocated memory is still 96.5MB. Free memory was 63.4MB in the beginning and 73.0MB in the end (delta: -9.5MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 29.72ms. Allocated memory is still 96.5MB. Free memory was 73.0MB in the beginning and 71.5MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 15.08ms. Allocated memory is still 96.5MB. Free memory was 71.5MB in the beginning and 70.9MB in the end (delta: 624.1kB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 217.40ms. Allocated memory is still 96.5MB. Free memory was 70.5MB in the beginning and 62.5MB in the end (delta: 8.1MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * TraceAbstraction took 330.59ms. Allocated memory is still 96.5MB. Free memory was 62.2MB in the beginning and 49.9MB in the end (delta: 12.3MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Witness Printer took 5.47ms. Allocated memory is still 96.5MB. Free memory was 49.9MB in the beginning and 49.6MB in the end (delta: 308.3kB). There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s 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] CALL __VERIFIER_assert(x==x) [L8] COND TRUE !(cond) VAL [\old(cond)=0, cond=0] [L8] reach_error() VAL [\old(cond)=0, cond=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 9 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 0.2s, OverallIterations: 1, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=9occurred in iteration=0, InterpolantAutomatonStates: 0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s 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 [2021-11-20 07:24:00,023 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06f314db-eb2c-44c4-bbfd-afba6db4a8f7/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06f314db-eb2c-44c4-bbfd-afba6db4a8f7/bin/uautomizer-DQz5hQGWxF/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06f314db-eb2c-44c4-bbfd-afba6db4a8f7/bin/uautomizer-DQz5hQGWxF/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06f314db-eb2c-44c4-bbfd-afba6db4a8f7/bin/uautomizer-DQz5hQGWxF/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06f314db-eb2c-44c4-bbfd-afba6db4a8f7/bin/uautomizer-DQz5hQGWxF/config/AutomizerReach.xml -i ../../sv-benchmarks/c/float-benchs/nan_double.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06f314db-eb2c-44c4-bbfd-afba6db4a8f7/bin/uautomizer-DQz5hQGWxF/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06f314db-eb2c-44c4-bbfd-afba6db4a8f7/bin/uautomizer-DQz5hQGWxF --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 a4232596288b496aee224c4b4f91c0d4dc8bab0d40c539eda179d1ef3a227da3 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-53f42b1 [2021-11-20 07:24:02,488 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-20 07:24:02,490 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-20 07:24:02,544 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-20 07:24:02,545 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-20 07:24:02,550 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-20 07:24:02,552 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-20 07:24:02,560 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-20 07:24:02,563 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-20 07:24:02,568 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-20 07:24:02,570 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-20 07:24:02,572 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-20 07:24:02,572 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-20 07:24:02,575 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-20 07:24:02,577 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-20 07:24:02,583 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-20 07:24:02,585 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-20 07:24:02,594 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-20 07:24:02,596 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-20 07:24:02,598 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-20 07:24:02,600 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-20 07:24:02,601 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-20 07:24:02,602 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-20 07:24:02,603 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-20 07:24:02,607 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-20 07:24:02,607 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-20 07:24:02,607 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-20 07:24:02,608 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-20 07:24:02,609 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-20 07:24:02,610 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-20 07:24:02,611 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-20 07:24:02,611 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-20 07:24:02,612 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-20 07:24:02,613 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-20 07:24:02,614 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-20 07:24:02,614 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-20 07:24:02,615 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-20 07:24:02,615 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-20 07:24:02,616 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-20 07:24:02,617 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-20 07:24:02,617 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-20 07:24:02,618 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06f314db-eb2c-44c4-bbfd-afba6db4a8f7/bin/uautomizer-DQz5hQGWxF/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2021-11-20 07:24:02,653 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-20 07:24:02,655 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-20 07:24:02,656 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-20 07:24:02,656 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-20 07:24:02,657 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-20 07:24:02,658 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-20 07:24:02,659 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-20 07:24:02,659 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-20 07:24:02,660 INFO L138 SettingsManager]: * Use SBE=true [2021-11-20 07:24:02,660 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-20 07:24:02,661 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-20 07:24:02,661 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-20 07:24:02,661 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-20 07:24:02,662 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-20 07:24:02,662 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-20 07:24:02,662 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-20 07:24:02,662 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-20 07:24:02,663 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-11-20 07:24:02,663 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-11-20 07:24:02,663 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-20 07:24:02,663 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-20 07:24:02,663 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-20 07:24:02,664 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-20 07:24:02,664 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-20 07:24:02,664 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-20 07:24:02,664 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-20 07:24:02,665 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-20 07:24:02,665 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-20 07:24:02,665 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-20 07:24:02,665 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-20 07:24:02,666 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2021-11-20 07:24:02,666 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-11-20 07:24:02,666 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-11-20 07:24:02,666 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-11-20 07:24:02,667 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-20 07:24:02,667 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-20 07:24:02,667 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-20 07:24:02,668 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_06f314db-eb2c-44c4-bbfd-afba6db4a8f7/bin/uautomizer-DQz5hQGWxF/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06f314db-eb2c-44c4-bbfd-afba6db4a8f7/bin/uautomizer-DQz5hQGWxF Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> a4232596288b496aee224c4b4f91c0d4dc8bab0d40c539eda179d1ef3a227da3 [2021-11-20 07:24:03,046 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-20 07:24:03,085 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-20 07:24:03,087 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-20 07:24:03,089 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-20 07:24:03,093 INFO L275 PluginConnector]: CDTParser initialized [2021-11-20 07:24:03,094 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06f314db-eb2c-44c4-bbfd-afba6db4a8f7/bin/uautomizer-DQz5hQGWxF/../../sv-benchmarks/c/float-benchs/nan_double.c [2021-11-20 07:24:03,180 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06f314db-eb2c-44c4-bbfd-afba6db4a8f7/bin/uautomizer-DQz5hQGWxF/data/f32509f2c/6a9fc3ef069143dda3e596e4c2cab57e/FLAGdb94c4716 [2021-11-20 07:24:03,756 INFO L306 CDTParser]: Found 1 translation units. [2021-11-20 07:24:03,756 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06f314db-eb2c-44c4-bbfd-afba6db4a8f7/sv-benchmarks/c/float-benchs/nan_double.c [2021-11-20 07:24:03,763 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06f314db-eb2c-44c4-bbfd-afba6db4a8f7/bin/uautomizer-DQz5hQGWxF/data/f32509f2c/6a9fc3ef069143dda3e596e4c2cab57e/FLAGdb94c4716 [2021-11-20 07:24:04,091 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06f314db-eb2c-44c4-bbfd-afba6db4a8f7/bin/uautomizer-DQz5hQGWxF/data/f32509f2c/6a9fc3ef069143dda3e596e4c2cab57e [2021-11-20 07:24:04,093 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-20 07:24:04,095 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-20 07:24:04,096 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-20 07:24:04,096 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-20 07:24:04,101 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-20 07:24:04,102 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 07:24:04" (1/1) ... [2021-11-20 07:24:04,105 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@66d77322 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:24:04, skipping insertion in model container [2021-11-20 07:24:04,106 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 07:24:04" (1/1) ... [2021-11-20 07:24:04,113 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-20 07:24:04,127 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-20 07:24:04,256 WARN L230 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_06f314db-eb2c-44c4-bbfd-afba6db4a8f7/sv-benchmarks/c/float-benchs/nan_double.c[434,447] [2021-11-20 07:24:04,263 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-20 07:24:04,276 INFO L203 MainTranslator]: Completed pre-run [2021-11-20 07:24:04,289 WARN L230 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_06f314db-eb2c-44c4-bbfd-afba6db4a8f7/sv-benchmarks/c/float-benchs/nan_double.c[434,447] [2021-11-20 07:24:04,290 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-20 07:24:04,305 INFO L208 MainTranslator]: Completed translation [2021-11-20 07:24:04,305 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:24:04 WrapperNode [2021-11-20 07:24:04,306 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-20 07:24:04,307 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-20 07:24:04,307 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-20 07:24:04,307 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-20 07:24:04,315 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:24:04" (1/1) ... [2021-11-20 07:24:04,323 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:24:04" (1/1) ... [2021-11-20 07:24:04,339 INFO L137 Inliner]: procedures = 14, calls = 8, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 23 [2021-11-20 07:24:04,339 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-20 07:24:04,340 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-20 07:24:04,340 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-20 07:24:04,340 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-20 07:24:04,348 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:24:04" (1/1) ... [2021-11-20 07:24:04,348 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:24:04" (1/1) ... [2021-11-20 07:24:04,351 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:24:04" (1/1) ... [2021-11-20 07:24:04,351 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:24:04" (1/1) ... [2021-11-20 07:24:04,356 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:24:04" (1/1) ... [2021-11-20 07:24:04,358 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:24:04" (1/1) ... [2021-11-20 07:24:04,360 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:24:04" (1/1) ... [2021-11-20 07:24:04,362 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-20 07:24:04,363 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-20 07:24:04,363 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-20 07:24:04,363 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-20 07:24:04,364 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:24:04" (1/1) ... [2021-11-20 07:24:04,371 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-20 07:24:04,383 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06f314db-eb2c-44c4-bbfd-afba6db4a8f7/bin/uautomizer-DQz5hQGWxF/z3 [2021-11-20 07:24:04,397 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06f314db-eb2c-44c4-bbfd-afba6db4a8f7/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-20 07:24:04,419 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06f314db-eb2c-44c4-bbfd-afba6db4a8f7/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-20 07:24:04,453 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-20 07:24:04,453 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-11-20 07:24:04,453 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-20 07:24:04,454 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-20 07:24:04,564 INFO L236 CfgBuilder]: Building ICFG [2021-11-20 07:24:04,566 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-20 07:24:04,670 INFO L277 CfgBuilder]: Performing block encoding [2021-11-20 07:24:04,678 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-20 07:24:04,679 INFO L301 CfgBuilder]: Removed 0 assume(true) statements. [2021-11-20 07:24:04,681 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 07:24:04 BoogieIcfgContainer [2021-11-20 07:24:04,682 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-20 07:24:04,686 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-20 07:24:04,687 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-20 07:24:04,691 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-20 07:24:04,691 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.11 07:24:04" (1/3) ... [2021-11-20 07:24:04,692 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2edf8411 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 07:24:04, skipping insertion in model container [2021-11-20 07:24:04,693 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:24:04" (2/3) ... [2021-11-20 07:24:04,694 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2edf8411 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 07:24:04, skipping insertion in model container [2021-11-20 07:24:04,694 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 07:24:04" (3/3) ... [2021-11-20 07:24:04,696 INFO L111 eAbstractionObserver]: Analyzing ICFG nan_double.c [2021-11-20 07:24:04,702 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-20 07:24:04,702 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-11-20 07:24:04,766 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-20 07:24:04,783 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 [2021-11-20 07:24:04,783 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-11-20 07:24:04,801 INFO L276 IsEmpty]: Start isEmpty. Operand has 9 states, 7 states have (on average 1.2857142857142858) internal successors, (9), 8 states have internal predecessors, (9), 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) [2021-11-20 07:24:04,812 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2021-11-20 07:24:04,812 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 07:24:04,813 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2021-11-20 07:24:04,813 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-20 07:24:04,825 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 07:24:04,825 INFO L85 PathProgramCache]: Analyzing trace with hash 925605, now seen corresponding path program 1 times [2021-11-20 07:24:04,843 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-20 07:24:04,843 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [871194459] [2021-11-20 07:24:04,844 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 07:24:04,844 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-20 07:24:04,845 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06f314db-eb2c-44c4-bbfd-afba6db4a8f7/bin/uautomizer-DQz5hQGWxF/mathsat [2021-11-20 07:24:04,849 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06f314db-eb2c-44c4-bbfd-afba6db4a8f7/bin/uautomizer-DQz5hQGWxF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-20 07:24:04,879 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06f314db-eb2c-44c4-bbfd-afba6db4a8f7/bin/uautomizer-DQz5hQGWxF/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-11-20 07:24:04,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-20 07:24:04,948 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-20 07:24:04,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-20 07:24:04,999 INFO L133 FreeRefinementEngine]: Strategy WOLF found a feasible trace [2021-11-20 07:24:05,001 INFO L628 BasicCegarLoop]: Counterexample is feasible [2021-11-20 07:24:05,002 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2021-11-20 07:24:05,020 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06f314db-eb2c-44c4-bbfd-afba6db4a8f7/bin/uautomizer-DQz5hQGWxF/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2021-11-20 07:24:05,216 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06f314db-eb2c-44c4-bbfd-afba6db4a8f7/bin/uautomizer-DQz5hQGWxF/mathsat -unsat_core_generation=3 [2021-11-20 07:24:05,221 INFO L732 BasicCegarLoop]: Path program histogram: [1] [2021-11-20 07:24:05,224 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-11-20 07:24:05,256 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.11 07:24:05 BoogieIcfgContainer [2021-11-20 07:24:05,256 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-11-20 07:24:05,257 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-11-20 07:24:05,257 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-11-20 07:24:05,257 INFO L275 PluginConnector]: Witness Printer initialized [2021-11-20 07:24:05,257 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 07:24:04" (3/4) ... [2021-11-20 07:24:05,259 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2021-11-20 07:24:05,304 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06f314db-eb2c-44c4-bbfd-afba6db4a8f7/bin/uautomizer-DQz5hQGWxF/witness.graphml [2021-11-20 07:24:05,305 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-11-20 07:24:05,306 INFO L158 Benchmark]: Toolchain (without parser) took 1211.11ms. Allocated memory is still 58.7MB. Free memory was 38.0MB in the beginning and 25.8MB in the end (delta: 12.2MB). Peak memory consumption was 14.5MB. Max. memory is 16.1GB. [2021-11-20 07:24:05,307 INFO L158 Benchmark]: CDTParser took 0.25ms. Allocated memory is still 58.7MB. Free memory is still 39.3MB. There was no memory consumed. Max. memory is 16.1GB. [2021-11-20 07:24:05,308 INFO L158 Benchmark]: CACSL2BoogieTranslator took 209.91ms. Allocated memory is still 58.7MB. Free memory was 37.8MB in the beginning and 28.0MB in the end (delta: 9.9MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2021-11-20 07:24:05,309 INFO L158 Benchmark]: Boogie Procedure Inliner took 32.41ms. Allocated memory is still 58.7MB. Free memory was 28.0MB in the beginning and 26.6MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-20 07:24:05,312 INFO L158 Benchmark]: Boogie Preprocessor took 22.41ms. Allocated memory is still 58.7MB. Free memory was 26.4MB in the beginning and 25.5MB in the end (delta: 966.5kB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-20 07:24:05,316 INFO L158 Benchmark]: RCFGBuilder took 318.62ms. Allocated memory is still 58.7MB. Free memory was 25.5MB in the beginning and 38.7MB in the end (delta: -13.2MB). Peak memory consumption was 10.3MB. Max. memory is 16.1GB. [2021-11-20 07:24:05,317 INFO L158 Benchmark]: TraceAbstraction took 569.52ms. Allocated memory is still 58.7MB. Free memory was 38.2MB in the beginning and 27.4MB in the end (delta: 10.8MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2021-11-20 07:24:05,317 INFO L158 Benchmark]: Witness Printer took 48.54ms. Allocated memory is still 58.7MB. Free memory was 27.4MB in the beginning and 25.8MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-20 07:24:05,324 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.25ms. Allocated memory is still 58.7MB. Free memory is still 39.3MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 209.91ms. Allocated memory is still 58.7MB. Free memory was 37.8MB in the beginning and 28.0MB in the end (delta: 9.9MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 32.41ms. Allocated memory is still 58.7MB. Free memory was 28.0MB in the beginning and 26.6MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 22.41ms. Allocated memory is still 58.7MB. Free memory was 26.4MB in the beginning and 25.5MB in the end (delta: 966.5kB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 318.62ms. Allocated memory is still 58.7MB. Free memory was 25.5MB in the beginning and 38.7MB in the end (delta: -13.2MB). Peak memory consumption was 10.3MB. Max. memory is 16.1GB. * TraceAbstraction took 569.52ms. Allocated memory is still 58.7MB. Free memory was 38.2MB in the beginning and 27.4MB in the end (delta: 10.8MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Witness Printer took 48.54ms. Allocated memory is still 58.7MB. Free memory was 27.4MB in the beginning and 25.8MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - CounterExampleResult [Line: 8]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L12] double x; [L13] x = __VERIFIER_nondet_double() [L15] CALL __VERIFIER_assert(x==x) [L8] COND TRUE !(cond) VAL [\old(cond)=0, cond=0] [L8] reach_error() VAL [\old(cond)=0, cond=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 9 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 0.5s, OverallIterations: 1, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=9occurred in iteration=0, InterpolantAutomatonStates: 0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s 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! [2021-11-20 07:24:05,372 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06f314db-eb2c-44c4-bbfd-afba6db4a8f7/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE