./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/float-benchs/nan_float.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 5e519f3a Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d417ac0-5592-46bf-99df-b293c5bb0c80/bin/uautomizer-Dbtcem3rbc/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d417ac0-5592-46bf-99df-b293c5bb0c80/bin/uautomizer-Dbtcem3rbc/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d417ac0-5592-46bf-99df-b293c5bb0c80/bin/uautomizer-Dbtcem3rbc/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d417ac0-5592-46bf-99df-b293c5bb0c80/bin/uautomizer-Dbtcem3rbc/config/AutomizerReach.xml -i ../../sv-benchmarks/c/float-benchs/nan_float.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d417ac0-5592-46bf-99df-b293c5bb0c80/bin/uautomizer-Dbtcem3rbc/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d417ac0-5592-46bf-99df-b293c5bb0c80/bin/uautomizer-Dbtcem3rbc --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 eb81f35d75989f789f001a9f8dd91513a75388b6b9d4a313a70014eff54b698e --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-5e519f3 [2022-11-02 20:08:27,912 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-02 20:08:27,914 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-02 20:08:27,957 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-02 20:08:27,958 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-02 20:08:27,963 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-02 20:08:27,966 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-02 20:08:27,969 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-02 20:08:27,976 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-02 20:08:27,978 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-02 20:08:27,980 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-02 20:08:27,983 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-02 20:08:27,984 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-02 20:08:27,993 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-02 20:08:27,994 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-02 20:08:27,996 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-02 20:08:27,999 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-02 20:08:28,002 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-02 20:08:28,004 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-02 20:08:28,008 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-02 20:08:28,014 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-02 20:08:28,015 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-02 20:08:28,017 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-02 20:08:28,020 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-02 20:08:28,025 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-02 20:08:28,033 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-02 20:08:28,033 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-02 20:08:28,034 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-02 20:08:28,036 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-02 20:08:28,038 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-02 20:08:28,039 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-02 20:08:28,040 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-02 20:08:28,042 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-02 20:08:28,044 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-02 20:08:28,046 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-02 20:08:28,047 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-02 20:08:28,047 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-02 20:08:28,048 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-02 20:08:28,048 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-02 20:08:28,049 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-02 20:08:28,050 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-02 20:08:28,051 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d417ac0-5592-46bf-99df-b293c5bb0c80/bin/uautomizer-Dbtcem3rbc/config/svcomp-Reach-32bit-Automizer_Default.epf [2022-11-02 20:08:28,093 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-02 20:08:28,097 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-02 20:08:28,098 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-02 20:08:28,099 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-02 20:08:28,100 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-02 20:08:28,100 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-02 20:08:28,101 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-02 20:08:28,101 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-02 20:08:28,102 INFO L138 SettingsManager]: * Use SBE=true [2022-11-02 20:08:28,102 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-02 20:08:28,103 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-02 20:08:28,104 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-02 20:08:28,104 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-02 20:08:28,104 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-02 20:08:28,104 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-02 20:08:28,105 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-02 20:08:28,105 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-02 20:08:28,105 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-02 20:08:28,106 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-02 20:08:28,106 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-02 20:08:28,106 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-02 20:08:28,106 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-02 20:08:28,107 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-02 20:08:28,107 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-02 20:08:28,107 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-02 20:08:28,108 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-02 20:08:28,110 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-02 20:08:28,110 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-02 20:08:28,110 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-02 20:08:28,111 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-02 20:08:28,111 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-02 20:08:28,111 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-02 20:08:28,112 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-02 20:08:28,112 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_0d417ac0-5592-46bf-99df-b293c5bb0c80/bin/uautomizer-Dbtcem3rbc/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d417ac0-5592-46bf-99df-b293c5bb0c80/bin/uautomizer-Dbtcem3rbc Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> eb81f35d75989f789f001a9f8dd91513a75388b6b9d4a313a70014eff54b698e [2022-11-02 20:08:28,458 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-02 20:08:28,502 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-02 20:08:28,505 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-02 20:08:28,507 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-02 20:08:28,508 INFO L275 PluginConnector]: CDTParser initialized [2022-11-02 20:08:28,510 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d417ac0-5592-46bf-99df-b293c5bb0c80/bin/uautomizer-Dbtcem3rbc/../../sv-benchmarks/c/float-benchs/nan_float.c [2022-11-02 20:08:28,589 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d417ac0-5592-46bf-99df-b293c5bb0c80/bin/uautomizer-Dbtcem3rbc/data/1b19d64ad/e19a3b5f7dc14efd8ccb3547ebac80c7/FLAGf3763a28e [2022-11-02 20:08:29,137 INFO L306 CDTParser]: Found 1 translation units. [2022-11-02 20:08:29,137 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d417ac0-5592-46bf-99df-b293c5bb0c80/sv-benchmarks/c/float-benchs/nan_float.c [2022-11-02 20:08:29,144 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d417ac0-5592-46bf-99df-b293c5bb0c80/bin/uautomizer-Dbtcem3rbc/data/1b19d64ad/e19a3b5f7dc14efd8ccb3547ebac80c7/FLAGf3763a28e [2022-11-02 20:08:29,490 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d417ac0-5592-46bf-99df-b293c5bb0c80/bin/uautomizer-Dbtcem3rbc/data/1b19d64ad/e19a3b5f7dc14efd8ccb3547ebac80c7 [2022-11-02 20:08:29,493 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-02 20:08:29,499 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-02 20:08:29,503 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-02 20:08:29,505 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-02 20:08:29,509 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-02 20:08:29,511 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.11 08:08:29" (1/1) ... [2022-11-02 20:08:29,514 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1fc9be08 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:08:29, skipping insertion in model container [2022-11-02 20:08:29,514 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.11 08:08:29" (1/1) ... [2022-11-02 20:08:29,524 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-02 20:08:29,538 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-02 20:08:29,820 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_0d417ac0-5592-46bf-99df-b293c5bb0c80/sv-benchmarks/c/float-benchs/nan_float.c[434,447] [2022-11-02 20:08:29,830 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-02 20:08:29,844 INFO L203 MainTranslator]: Completed pre-run [2022-11-02 20:08:29,862 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_0d417ac0-5592-46bf-99df-b293c5bb0c80/sv-benchmarks/c/float-benchs/nan_float.c[434,447] [2022-11-02 20:08:29,866 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-02 20:08:29,882 INFO L208 MainTranslator]: Completed translation [2022-11-02 20:08:29,883 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:08:29 WrapperNode [2022-11-02 20:08:29,883 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-02 20:08:29,887 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-02 20:08:29,887 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-02 20:08:29,888 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-02 20:08:29,897 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:08:29" (1/1) ... [2022-11-02 20:08:29,906 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:08:29" (1/1) ... [2022-11-02 20:08:29,928 INFO L138 Inliner]: procedures = 13, calls = 8, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 22 [2022-11-02 20:08:29,929 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-02 20:08:29,930 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-02 20:08:29,930 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-02 20:08:29,930 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-02 20:08:29,942 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:08:29" (1/1) ... [2022-11-02 20:08:29,942 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:08:29" (1/1) ... [2022-11-02 20:08:29,944 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:08:29" (1/1) ... [2022-11-02 20:08:29,945 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:08:29" (1/1) ... [2022-11-02 20:08:29,950 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:08:29" (1/1) ... [2022-11-02 20:08:29,953 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:08:29" (1/1) ... [2022-11-02 20:08:29,954 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:08:29" (1/1) ... [2022-11-02 20:08:29,956 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:08:29" (1/1) ... [2022-11-02 20:08:29,963 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-02 20:08:29,964 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-02 20:08:29,965 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-02 20:08:29,966 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-02 20:08:29,967 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:08:29" (1/1) ... [2022-11-02 20:08:29,975 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-02 20:08:29,989 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d417ac0-5592-46bf-99df-b293c5bb0c80/bin/uautomizer-Dbtcem3rbc/z3 [2022-11-02 20:08:30,009 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d417ac0-5592-46bf-99df-b293c5bb0c80/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-02 20:08:30,042 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d417ac0-5592-46bf-99df-b293c5bb0c80/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-02 20:08:30,078 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-02 20:08:30,078 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-02 20:08:30,078 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-02 20:08:30,079 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-02 20:08:30,164 INFO L235 CfgBuilder]: Building ICFG [2022-11-02 20:08:30,167 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-02 20:08:30,311 INFO L276 CfgBuilder]: Performing block encoding [2022-11-02 20:08:30,322 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-02 20:08:30,322 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-11-02 20:08:30,324 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 08:08:30 BoogieIcfgContainer [2022-11-02 20:08:30,324 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-02 20:08:30,329 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-02 20:08:30,329 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-02 20:08:30,334 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-02 20:08:30,334 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.11 08:08:29" (1/3) ... [2022-11-02 20:08:30,335 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@521b393f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.11 08:08:30, skipping insertion in model container [2022-11-02 20:08:30,336 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:08:29" (2/3) ... [2022-11-02 20:08:30,336 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@521b393f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.11 08:08:30, skipping insertion in model container [2022-11-02 20:08:30,337 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 08:08:30" (3/3) ... [2022-11-02 20:08:30,338 INFO L112 eAbstractionObserver]: Analyzing ICFG nan_float.c [2022-11-02 20:08:30,366 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-02 20:08:30,366 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-02 20:08:30,456 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-02 20:08:30,469 INFO L357 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, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@122646f3, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-02 20:08:30,469 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-02 20:08:30,486 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) [2022-11-02 20:08:30,499 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2022-11-02 20:08:30,499 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 20:08:30,500 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1] [2022-11-02 20:08:30,501 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-02 20:08:30,511 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:08:30,511 INFO L85 PathProgramCache]: Analyzing trace with hash 925605, now seen corresponding path program 1 times [2022-11-02 20:08:30,523 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:08:30,524 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1065705271] [2022-11-02 20:08:30,524 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:08:30,525 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:08:30,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-02 20:08:30,626 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-02 20:08:30,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-02 20:08:30,659 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-02 20:08:30,661 INFO L359 BasicCegarLoop]: Counterexample is feasible [2022-11-02 20:08:30,663 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-11-02 20:08:30,665 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-02 20:08:30,670 INFO L444 BasicCegarLoop]: Path program histogram: [1] [2022-11-02 20:08:30,675 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-02 20:08:30,697 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 02.11 08:08:30 BoogieIcfgContainer [2022-11-02 20:08:30,698 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-02 20:08:30,699 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-02 20:08:30,699 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-02 20:08:30,699 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-02 20:08:30,700 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 08:08:30" (3/4) ... [2022-11-02 20:08:30,705 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-11-02 20:08:30,705 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-02 20:08:30,707 INFO L158 Benchmark]: Toolchain (without parser) took 1207.69ms. Allocated memory is still 109.1MB. Free memory was 71.1MB in the beginning and 59.9MB in the end (delta: 11.2MB). Peak memory consumption was 7.8MB. Max. memory is 16.1GB. [2022-11-02 20:08:30,708 INFO L158 Benchmark]: CDTParser took 0.33ms. Allocated memory is still 109.1MB. Free memory is still 87.3MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-02 20:08:30,709 INFO L158 Benchmark]: CACSL2BoogieTranslator took 380.87ms. Allocated memory is still 109.1MB. Free memory was 70.9MB in the beginning and 85.1MB in the end (delta: -14.2MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2022-11-02 20:08:30,710 INFO L158 Benchmark]: Boogie Procedure Inliner took 41.86ms. Allocated memory is still 109.1MB. Free memory was 85.1MB in the beginning and 83.9MB in the end (delta: 1.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-02 20:08:30,710 INFO L158 Benchmark]: Boogie Preprocessor took 33.48ms. Allocated memory is still 109.1MB. Free memory was 83.9MB in the beginning and 82.9MB in the end (delta: 967.4kB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-02 20:08:30,711 INFO L158 Benchmark]: RCFGBuilder took 360.53ms. Allocated memory is still 109.1MB. Free memory was 82.9MB in the beginning and 74.0MB in the end (delta: 8.9MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2022-11-02 20:08:30,712 INFO L158 Benchmark]: TraceAbstraction took 368.71ms. Allocated memory is still 109.1MB. Free memory was 73.4MB in the beginning and 60.4MB in the end (delta: 13.1MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2022-11-02 20:08:30,713 INFO L158 Benchmark]: Witness Printer took 6.87ms. Allocated memory is still 109.1MB. Free memory was 60.4MB in the beginning and 59.9MB in the end (delta: 484.3kB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-02 20:08:30,717 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.33ms. Allocated memory is still 109.1MB. Free memory is still 87.3MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 380.87ms. Allocated memory is still 109.1MB. Free memory was 70.9MB in the beginning and 85.1MB in the end (delta: -14.2MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 41.86ms. Allocated memory is still 109.1MB. Free memory was 85.1MB in the beginning and 83.9MB in the end (delta: 1.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 33.48ms. Allocated memory is still 109.1MB. Free memory was 83.9MB in the beginning and 82.9MB in the end (delta: 967.4kB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 360.53ms. Allocated memory is still 109.1MB. Free memory was 82.9MB in the beginning and 74.0MB in the end (delta: 8.9MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * TraceAbstraction took 368.71ms. Allocated memory is still 109.1MB. Free memory was 73.4MB in the beginning and 60.4MB in the end (delta: 13.1MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Witness Printer took 6.87ms. Allocated memory is still 109.1MB. Free memory was 60.4MB in the beginning and 59.9MB in the end (delta: 484.3kB). 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 someBinaryFLOATComparisonOperation at line 15. Possible FailurePath: [L12] float x; [L13] x = __VERIFIER_nondet_float() [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, 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 [2022-11-02 20:08:30,781 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d417ac0-5592-46bf-99df-b293c5bb0c80/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with 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/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d417ac0-5592-46bf-99df-b293c5bb0c80/bin/uautomizer-Dbtcem3rbc/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d417ac0-5592-46bf-99df-b293c5bb0c80/bin/uautomizer-Dbtcem3rbc/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d417ac0-5592-46bf-99df-b293c5bb0c80/bin/uautomizer-Dbtcem3rbc/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d417ac0-5592-46bf-99df-b293c5bb0c80/bin/uautomizer-Dbtcem3rbc/config/AutomizerReach.xml -i ../../sv-benchmarks/c/float-benchs/nan_float.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d417ac0-5592-46bf-99df-b293c5bb0c80/bin/uautomizer-Dbtcem3rbc/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d417ac0-5592-46bf-99df-b293c5bb0c80/bin/uautomizer-Dbtcem3rbc --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 eb81f35d75989f789f001a9f8dd91513a75388b6b9d4a313a70014eff54b698e --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-5e519f3 [2022-11-02 20:08:33,461 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-02 20:08:33,463 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-02 20:08:33,512 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-02 20:08:33,513 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-02 20:08:33,518 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-02 20:08:33,520 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-02 20:08:33,529 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-02 20:08:33,536 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-02 20:08:33,539 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-02 20:08:33,540 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-02 20:08:33,543 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-02 20:08:33,543 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-02 20:08:33,549 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-02 20:08:33,551 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-02 20:08:33,554 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-02 20:08:33,555 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-02 20:08:33,558 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-02 20:08:33,560 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-02 20:08:33,566 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-02 20:08:33,571 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-02 20:08:33,572 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-02 20:08:33,576 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-02 20:08:33,579 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-02 20:08:33,586 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-02 20:08:33,592 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-02 20:08:33,592 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-02 20:08:33,593 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-02 20:08:33,595 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-02 20:08:33,596 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-02 20:08:33,597 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-02 20:08:33,598 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-02 20:08:33,600 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-02 20:08:33,601 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-02 20:08:33,602 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-02 20:08:33,603 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-02 20:08:33,604 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-02 20:08:33,604 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-02 20:08:33,604 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-02 20:08:33,607 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-02 20:08:33,607 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-02 20:08:33,608 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d417ac0-5592-46bf-99df-b293c5bb0c80/bin/uautomizer-Dbtcem3rbc/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2022-11-02 20:08:33,642 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-02 20:08:33,643 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-02 20:08:33,643 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-02 20:08:33,644 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-02 20:08:33,645 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-02 20:08:33,645 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-02 20:08:33,647 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-02 20:08:33,647 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-02 20:08:33,647 INFO L138 SettingsManager]: * Use SBE=true [2022-11-02 20:08:33,647 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-02 20:08:33,649 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-02 20:08:33,649 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-02 20:08:33,649 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-02 20:08:33,650 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-02 20:08:33,650 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-02 20:08:33,650 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-02 20:08:33,651 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-11-02 20:08:33,651 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-11-02 20:08:33,651 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-11-02 20:08:33,651 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-02 20:08:33,652 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-02 20:08:33,652 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-02 20:08:33,652 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-02 20:08:33,652 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-02 20:08:33,653 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-02 20:08:33,653 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-02 20:08:33,654 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-02 20:08:33,654 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-02 20:08:33,654 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-02 20:08:33,655 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-02 20:08:33,655 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2022-11-02 20:08:33,655 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2022-11-02 20:08:33,656 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-02 20:08:33,656 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-02 20:08:33,656 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-02 20:08:33,656 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-11-02 20:08:33,657 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_0d417ac0-5592-46bf-99df-b293c5bb0c80/bin/uautomizer-Dbtcem3rbc/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d417ac0-5592-46bf-99df-b293c5bb0c80/bin/uautomizer-Dbtcem3rbc Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> eb81f35d75989f789f001a9f8dd91513a75388b6b9d4a313a70014eff54b698e [2022-11-02 20:08:34,149 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-02 20:08:34,187 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-02 20:08:34,191 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-02 20:08:34,193 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-02 20:08:34,194 INFO L275 PluginConnector]: CDTParser initialized [2022-11-02 20:08:34,196 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d417ac0-5592-46bf-99df-b293c5bb0c80/bin/uautomizer-Dbtcem3rbc/../../sv-benchmarks/c/float-benchs/nan_float.c [2022-11-02 20:08:34,287 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d417ac0-5592-46bf-99df-b293c5bb0c80/bin/uautomizer-Dbtcem3rbc/data/61d9f0db5/588ce12f5da647a4a313cb4cd0fdf369/FLAG6f1be6473 [2022-11-02 20:08:34,941 INFO L306 CDTParser]: Found 1 translation units. [2022-11-02 20:08:34,942 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d417ac0-5592-46bf-99df-b293c5bb0c80/sv-benchmarks/c/float-benchs/nan_float.c [2022-11-02 20:08:34,950 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d417ac0-5592-46bf-99df-b293c5bb0c80/bin/uautomizer-Dbtcem3rbc/data/61d9f0db5/588ce12f5da647a4a313cb4cd0fdf369/FLAG6f1be6473 [2022-11-02 20:08:35,300 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d417ac0-5592-46bf-99df-b293c5bb0c80/bin/uautomizer-Dbtcem3rbc/data/61d9f0db5/588ce12f5da647a4a313cb4cd0fdf369 [2022-11-02 20:08:35,303 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-02 20:08:35,307 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-02 20:08:35,309 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-02 20:08:35,309 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-02 20:08:35,314 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-02 20:08:35,316 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.11 08:08:35" (1/1) ... [2022-11-02 20:08:35,317 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@26aaa540 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:08:35, skipping insertion in model container [2022-11-02 20:08:35,319 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.11 08:08:35" (1/1) ... [2022-11-02 20:08:35,333 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-02 20:08:35,350 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-02 20:08:35,531 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_0d417ac0-5592-46bf-99df-b293c5bb0c80/sv-benchmarks/c/float-benchs/nan_float.c[434,447] [2022-11-02 20:08:35,540 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-02 20:08:35,556 INFO L203 MainTranslator]: Completed pre-run [2022-11-02 20:08:35,572 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_0d417ac0-5592-46bf-99df-b293c5bb0c80/sv-benchmarks/c/float-benchs/nan_float.c[434,447] [2022-11-02 20:08:35,574 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-02 20:08:35,592 INFO L208 MainTranslator]: Completed translation [2022-11-02 20:08:35,592 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:08:35 WrapperNode [2022-11-02 20:08:35,593 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-02 20:08:35,594 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-02 20:08:35,594 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-02 20:08:35,595 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-02 20:08:35,627 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:08:35" (1/1) ... [2022-11-02 20:08:35,670 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:08:35" (1/1) ... [2022-11-02 20:08:35,689 INFO L138 Inliner]: procedures = 14, calls = 8, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 23 [2022-11-02 20:08:35,690 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-02 20:08:35,690 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-02 20:08:35,691 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-02 20:08:35,691 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-02 20:08:35,699 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:08:35" (1/1) ... [2022-11-02 20:08:35,699 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:08:35" (1/1) ... [2022-11-02 20:08:35,702 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:08:35" (1/1) ... [2022-11-02 20:08:35,702 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:08:35" (1/1) ... [2022-11-02 20:08:35,708 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:08:35" (1/1) ... [2022-11-02 20:08:35,710 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:08:35" (1/1) ... [2022-11-02 20:08:35,711 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:08:35" (1/1) ... [2022-11-02 20:08:35,713 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:08:35" (1/1) ... [2022-11-02 20:08:35,715 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-02 20:08:35,716 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-02 20:08:35,717 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-02 20:08:35,717 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-02 20:08:35,718 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:08:35" (1/1) ... [2022-11-02 20:08:35,726 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-02 20:08:35,741 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d417ac0-5592-46bf-99df-b293c5bb0c80/bin/uautomizer-Dbtcem3rbc/z3 [2022-11-02 20:08:35,758 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d417ac0-5592-46bf-99df-b293c5bb0c80/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-02 20:08:35,761 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d417ac0-5592-46bf-99df-b293c5bb0c80/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-02 20:08:35,803 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-02 20:08:35,803 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-11-02 20:08:35,803 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-02 20:08:35,804 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-02 20:08:35,896 INFO L235 CfgBuilder]: Building ICFG [2022-11-02 20:08:35,899 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-02 20:08:36,087 INFO L276 CfgBuilder]: Performing block encoding [2022-11-02 20:08:36,094 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-02 20:08:36,101 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-11-02 20:08:36,104 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 08:08:36 BoogieIcfgContainer [2022-11-02 20:08:36,104 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-02 20:08:36,107 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-02 20:08:36,109 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-02 20:08:36,113 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-02 20:08:36,113 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.11 08:08:35" (1/3) ... [2022-11-02 20:08:36,115 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@173cd0e1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.11 08:08:36, skipping insertion in model container [2022-11-02 20:08:36,115 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:08:35" (2/3) ... [2022-11-02 20:08:36,116 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@173cd0e1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.11 08:08:36, skipping insertion in model container [2022-11-02 20:08:36,116 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 08:08:36" (3/3) ... [2022-11-02 20:08:36,118 INFO L112 eAbstractionObserver]: Analyzing ICFG nan_float.c [2022-11-02 20:08:36,141 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-02 20:08:36,142 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-02 20:08:36,226 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-02 20:08:36,239 INFO L357 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, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@7e427b6d, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-02 20:08:36,239 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-02 20:08:36,258 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) [2022-11-02 20:08:36,280 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2022-11-02 20:08:36,281 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 20:08:36,281 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1] [2022-11-02 20:08:36,282 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-02 20:08:36,295 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:08:36,295 INFO L85 PathProgramCache]: Analyzing trace with hash 925605, now seen corresponding path program 1 times [2022-11-02 20:08:36,310 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-02 20:08:36,311 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [235068104] [2022-11-02 20:08:36,312 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:08:36,312 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-02 20:08:36,313 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d417ac0-5592-46bf-99df-b293c5bb0c80/bin/uautomizer-Dbtcem3rbc/mathsat [2022-11-02 20:08:36,319 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d417ac0-5592-46bf-99df-b293c5bb0c80/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-02 20:08:36,371 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d417ac0-5592-46bf-99df-b293c5bb0c80/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2022-11-02 20:08:36,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-02 20:08:36,425 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-02 20:08:36,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-02 20:08:36,460 INFO L130 FreeRefinementEngine]: Strategy WOLF found a feasible trace [2022-11-02 20:08:36,463 INFO L359 BasicCegarLoop]: Counterexample is feasible [2022-11-02 20:08:36,464 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-11-02 20:08:36,490 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d417ac0-5592-46bf-99df-b293c5bb0c80/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2022-11-02 20:08:36,682 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d417ac0-5592-46bf-99df-b293c5bb0c80/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 [2022-11-02 20:08:36,688 INFO L444 BasicCegarLoop]: Path program histogram: [1] [2022-11-02 20:08:36,694 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-02 20:08:36,719 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 02.11 08:08:36 BoogieIcfgContainer [2022-11-02 20:08:36,719 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-02 20:08:36,722 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-02 20:08:36,723 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-02 20:08:36,723 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-02 20:08:36,725 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 08:08:36" (3/4) ... [2022-11-02 20:08:36,727 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2022-11-02 20:08:36,788 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d417ac0-5592-46bf-99df-b293c5bb0c80/bin/uautomizer-Dbtcem3rbc/witness.graphml [2022-11-02 20:08:36,788 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-02 20:08:36,791 INFO L158 Benchmark]: Toolchain (without parser) took 1483.33ms. Allocated memory was 56.6MB in the beginning and 75.5MB in the end (delta: 18.9MB). Free memory was 34.0MB in the beginning and 50.2MB in the end (delta: -16.1MB). Peak memory consumption was 2.6MB. Max. memory is 16.1GB. [2022-11-02 20:08:36,792 INFO L158 Benchmark]: CDTParser took 0.38ms. Allocated memory is still 56.6MB. Free memory was 37.1MB in the beginning and 37.1MB in the end (delta: 43.8kB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-02 20:08:36,792 INFO L158 Benchmark]: CACSL2BoogieTranslator took 284.66ms. Allocated memory is still 56.6MB. Free memory was 33.8MB in the beginning and 24.0MB in the end (delta: 9.8MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2022-11-02 20:08:36,796 INFO L158 Benchmark]: Boogie Procedure Inliner took 95.78ms. Allocated memory is still 56.6MB. Free memory was 24.0MB in the beginning and 39.7MB in the end (delta: -15.7MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-11-02 20:08:36,797 INFO L158 Benchmark]: Boogie Preprocessor took 25.04ms. Allocated memory is still 56.6MB. Free memory was 39.7MB in the beginning and 38.6MB in the end (delta: 1.1MB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-02 20:08:36,800 INFO L158 Benchmark]: RCFGBuilder took 388.19ms. Allocated memory is still 56.6MB. Free memory was 38.4MB in the beginning and 29.8MB in the end (delta: 8.6MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2022-11-02 20:08:36,801 INFO L158 Benchmark]: TraceAbstraction took 613.20ms. Allocated memory was 56.6MB in the beginning and 75.5MB in the end (delta: 18.9MB). Free memory was 29.1MB in the beginning and 51.9MB in the end (delta: -22.8MB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-02 20:08:36,802 INFO L158 Benchmark]: Witness Printer took 66.45ms. Allocated memory is still 75.5MB. Free memory was 51.6MB in the beginning and 50.2MB in the end (delta: 1.5MB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-02 20:08:36,809 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.38ms. Allocated memory is still 56.6MB. Free memory was 37.1MB in the beginning and 37.1MB in the end (delta: 43.8kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 284.66ms. Allocated memory is still 56.6MB. Free memory was 33.8MB in the beginning and 24.0MB in the end (delta: 9.8MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 95.78ms. Allocated memory is still 56.6MB. Free memory was 24.0MB in the beginning and 39.7MB in the end (delta: -15.7MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 25.04ms. Allocated memory is still 56.6MB. Free memory was 39.7MB in the beginning and 38.6MB in the end (delta: 1.1MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 388.19ms. Allocated memory is still 56.6MB. Free memory was 38.4MB in the beginning and 29.8MB in the end (delta: 8.6MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * TraceAbstraction took 613.20ms. Allocated memory was 56.6MB in the beginning and 75.5MB in the end (delta: 18.9MB). Free memory was 29.1MB in the beginning and 51.9MB in the end (delta: -22.8MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 66.45ms. Allocated memory is still 75.5MB. Free memory was 51.6MB in the beginning and 50.2MB in the end (delta: 1.5MB). 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 - CounterExampleResult [Line: 8]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L12] float x; [L13] x = __VERIFIER_nondet_float() [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, 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! [2022-11-02 20:08:36,877 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d417ac0-5592-46bf-99df-b293c5bb0c80/bin/uautomizer-Dbtcem3rbc/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